diff --git a/dependencies/acorn/acorn.js b/dependencies/acorn/acorn.js
new file mode 100644
index 0000000000000000000000000000000000000000..b44edb976a1aedb6c32c12bcc96a4dead9ce216c
--- /dev/null
+++ b/dependencies/acorn/acorn.js
@@ -0,0 +1,3312 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.acorn = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
+// A recursive descent parser operates by defining functions for all
+// syntactic elements, and recursively calling those, each function
+// advancing the input stream and returning an AST node. Precedence
+// of constructs (for example, the fact that `!x[1]` means `!(x[1])`
+// instead of `(!x)[1]` is handled by the fact that the parser
+// function that parses unary prefix operators is called first, and
+// in turn calls the function that parses `[]` subscripts — that
+// way, it'll receive the node for `x[1]` already parsed, and wraps
+// *that* in the unary operator node.
+//
+// Acorn uses an [operator precedence parser][opp] to handle binary
+// operator precedence, because it is much more compact than using
+// the technique outlined above, which uses different, nesting
+// functions to specify precedence, for all of the ten binary
+// precedence levels that JavaScript defines.
+//
+// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser
+
+"use strict";
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _identifier = _dereq_("./identifier");
+
+var _util = _dereq_("./util");
+
+var pp = _state.Parser.prototype;
+
+// Check if property name clashes with already added.
+// Object/class getters and setters are not allowed to clash —
+// either with each other or with an init property — and in
+// strict mode, init properties are also not allowed to be repeated.
+
+pp.checkPropClash = function (prop, propHash) {
+ if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand)) return;
+ var key = prop.key,
+ name = undefined;
+ switch (key.type) {
+ case "Identifier":
+ name = key.name;break;
+ case "Literal":
+ name = String(key.value);break;
+ default:
+ return;
+ }
+ var kind = prop.kind;
+ if (this.options.ecmaVersion >= 6) {
+ if (name === "__proto__" && kind === "init") {
+ if (propHash.proto) this.raise(key.start, "Redefinition of __proto__ property");
+ propHash.proto = true;
+ }
+ return;
+ }
+ var other = undefined;
+ if (_util.has(propHash, name)) {
+ other = propHash[name];
+ var isGetSet = kind !== "init";
+ if ((this.strict || isGetSet) && other[kind] || !(isGetSet ^ other.init)) this.raise(key.start, "Redefinition of property");
+ } else {
+ other = propHash[name] = {
+ init: false,
+ get: false,
+ set: false
+ };
+ }
+ other[kind] = true;
+};
+
+// ### Expression parsing
+
+// These nest, from the most general expression type at the top to
+// 'atomic', nondivisible expression types at the bottom. Most of
+// the functions will simply let the function(s) below them parse,
+// and, *if* the syntactic construct they handle is present, wrap
+// the AST node that the inner parser gave them in another node.
+
+// Parse a full expression. The optional arguments are used to
+// forbid the `in` operator (in for loops initalization expressions)
+// and provide reference for storing '=' operator inside shorthand
+// property assignment in contexts where both object expression
+// and object pattern might appear (so it's possible to raise
+// delayed syntax error at correct position).
+
+pp.parseExpression = function (noIn, refShorthandDefaultPos) {
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseMaybeAssign(noIn, refShorthandDefaultPos);
+ if (this.type === _tokentype.types.comma) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.expressions = [expr];
+ while (this.eat(_tokentype.types.comma)) node.expressions.push(this.parseMaybeAssign(noIn, refShorthandDefaultPos));
+ return this.finishNode(node, "SequenceExpression");
+ }
+ return expr;
+};
+
+// Parse an assignment expression. This includes applications of
+// operators like `+=`.
+
+pp.parseMaybeAssign = function (noIn, refShorthandDefaultPos, afterLeftParse) {
+ if (this.type == _tokentype.types._yield && this.inGenerator) return this.parseYield();
+
+ var failOnShorthandAssign = undefined;
+ if (!refShorthandDefaultPos) {
+ refShorthandDefaultPos = { start: 0 };
+ failOnShorthandAssign = true;
+ } else {
+ failOnShorthandAssign = false;
+ }
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ if (this.type == _tokentype.types.parenL || this.type == _tokentype.types.name) this.potentialArrowAt = this.start;
+ var left = this.parseMaybeConditional(noIn, refShorthandDefaultPos);
+ if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc);
+ if (this.type.isAssign) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.operator = this.value;
+ node.left = this.type === _tokentype.types.eq ? this.toAssignable(left) : left;
+ refShorthandDefaultPos.start = 0; // reset because shorthand default was used correctly
+ this.checkLVal(left);
+ this.next();
+ node.right = this.parseMaybeAssign(noIn);
+ return this.finishNode(node, "AssignmentExpression");
+ } else if (failOnShorthandAssign && refShorthandDefaultPos.start) {
+ this.unexpected(refShorthandDefaultPos.start);
+ }
+ return left;
+};
+
+// Parse a ternary conditional (`?:`) operator.
+
+pp.parseMaybeConditional = function (noIn, refShorthandDefaultPos) {
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseExprOps(noIn, refShorthandDefaultPos);
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+ if (this.eat(_tokentype.types.question)) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.test = expr;
+ node.consequent = this.parseMaybeAssign();
+ this.expect(_tokentype.types.colon);
+ node.alternate = this.parseMaybeAssign(noIn);
+ return this.finishNode(node, "ConditionalExpression");
+ }
+ return expr;
+};
+
+// Start the precedence parser.
+
+pp.parseExprOps = function (noIn, refShorthandDefaultPos) {
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseMaybeUnary(refShorthandDefaultPos);
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+ return this.parseExprOp(expr, startPos, startLoc, -1, noIn);
+};
+
+// Parse binary operators with the operator precedence parsing
+// algorithm. `left` is the left-hand side of the operator.
+// `minPrec` provides context that allows the function to stop and
+// defer further parser to one of its callers when it encounters an
+// operator that has a lower precedence than the set it is parsing.
+
+pp.parseExprOp = function (left, leftStartPos, leftStartLoc, minPrec, noIn) {
+ var prec = this.type.binop;
+ if (prec != null && (!noIn || this.type !== _tokentype.types._in)) {
+ if (prec > minPrec) {
+ var node = this.startNodeAt(leftStartPos, leftStartLoc);
+ node.left = left;
+ node.operator = this.value;
+ var op = this.type;
+ this.next();
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ node.right = this.parseExprOp(this.parseMaybeUnary(), startPos, startLoc, prec, noIn);
+ this.finishNode(node, op === _tokentype.types.logicalOR || op === _tokentype.types.logicalAND ? "LogicalExpression" : "BinaryExpression");
+ return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn);
+ }
+ }
+ return left;
+};
+
+// Parse unary operators, both prefix and postfix.
+
+pp.parseMaybeUnary = function (refShorthandDefaultPos) {
+ if (this.type.prefix) {
+ var node = this.startNode(),
+ update = this.type === _tokentype.types.incDec;
+ node.operator = this.value;
+ node.prefix = true;
+ this.next();
+ node.argument = this.parseMaybeUnary();
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);
+ if (update) this.checkLVal(node.argument);else if (this.strict && node.operator === "delete" && node.argument.type === "Identifier") this.raise(node.start, "Deleting local variable in strict mode");
+ return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
+ }
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseExprSubscripts(refShorthandDefaultPos);
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+ while (this.type.postfix && !this.canInsertSemicolon()) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.operator = this.value;
+ node.prefix = false;
+ node.argument = expr;
+ this.checkLVal(expr);
+ this.next();
+ expr = this.finishNode(node, "UpdateExpression");
+ }
+ return expr;
+};
+
+// Parse call, dot, and `[]`-subscript expressions.
+
+pp.parseExprSubscripts = function (refShorthandDefaultPos) {
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseExprAtom(refShorthandDefaultPos);
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+ return this.parseSubscripts(expr, startPos, startLoc);
+};
+
+pp.parseSubscripts = function (base, startPos, startLoc, noCalls) {
+ for (;;) {
+ if (this.eat(_tokentype.types.dot)) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.object = base;
+ node.property = this.parseIdent(true);
+ node.computed = false;
+ base = this.finishNode(node, "MemberExpression");
+ } else if (this.eat(_tokentype.types.bracketL)) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.object = base;
+ node.property = this.parseExpression();
+ node.computed = true;
+ this.expect(_tokentype.types.bracketR);
+ base = this.finishNode(node, "MemberExpression");
+ } else if (!noCalls && this.eat(_tokentype.types.parenL)) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.callee = base;
+ node.arguments = this.parseExprList(_tokentype.types.parenR, false);
+ base = this.finishNode(node, "CallExpression");
+ } else if (this.type === _tokentype.types.backQuote) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.tag = base;
+ node.quasi = this.parseTemplate();
+ base = this.finishNode(node, "TaggedTemplateExpression");
+ } else {
+ return base;
+ }
+ }
+};
+
+// Parse an atomic expression — either a single token that is an
+// expression, an expression started by a keyword like `function` or
+// `new`, or an expression wrapped in punctuation like `()`, `[]`,
+// or `{}`.
+
+pp.parseExprAtom = function (refShorthandDefaultPos) {
+ var node = undefined,
+ canBeArrow = this.potentialArrowAt == this.start;
+ switch (this.type) {
+ case _tokentype.types._super:
+ if (!this.inFunction) this.raise(this.start, "'super' outside of function or class");
+ case _tokentype.types._this:
+ var type = this.type === _tokentype.types._this ? "ThisExpression" : "Super";
+ node = this.startNode();
+ this.next();
+ return this.finishNode(node, type);
+
+ case _tokentype.types._yield:
+ if (this.inGenerator) this.unexpected();
+
+ case _tokentype.types.name:
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var id = this.parseIdent(this.type !== _tokentype.types.name);
+ if (canBeArrow && !this.canInsertSemicolon() && this.eat(_tokentype.types.arrow)) return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id]);
+ return id;
+
+ case _tokentype.types.regexp:
+ var value = this.value;
+ node = this.parseLiteral(value.value);
+ node.regex = { pattern: value.pattern, flags: value.flags };
+ return node;
+
+ case _tokentype.types.num:case _tokentype.types.string:
+ return this.parseLiteral(this.value);
+
+ case _tokentype.types._null:case _tokentype.types._true:case _tokentype.types._false:
+ node = this.startNode();
+ node.value = this.type === _tokentype.types._null ? null : this.type === _tokentype.types._true;
+ node.raw = this.type.keyword;
+ this.next();
+ return this.finishNode(node, "Literal");
+
+ case _tokentype.types.parenL:
+ return this.parseParenAndDistinguishExpression(canBeArrow);
+
+ case _tokentype.types.bracketL:
+ node = this.startNode();
+ this.next();
+ // check whether this is array comprehension or regular array
+ if (this.options.ecmaVersion >= 7 && this.type === _tokentype.types._for) {
+ return this.parseComprehension(node, false);
+ }
+ node.elements = this.parseExprList(_tokentype.types.bracketR, true, true, refShorthandDefaultPos);
+ return this.finishNode(node, "ArrayExpression");
+
+ case _tokentype.types.braceL:
+ return this.parseObj(false, refShorthandDefaultPos);
+
+ case _tokentype.types._function:
+ node = this.startNode();
+ this.next();
+ return this.parseFunction(node, false);
+
+ case _tokentype.types._class:
+ return this.parseClass(this.startNode(), false);
+
+ case _tokentype.types._new:
+ return this.parseNew();
+
+ case _tokentype.types.backQuote:
+ return this.parseTemplate();
+
+ default:
+ this.unexpected();
+ }
+};
+
+pp.parseLiteral = function (value) {
+ var node = this.startNode();
+ node.value = value;
+ node.raw = this.input.slice(this.start, this.end);
+ this.next();
+ return this.finishNode(node, "Literal");
+};
+
+pp.parseParenExpression = function () {
+ this.expect(_tokentype.types.parenL);
+ var val = this.parseExpression();
+ this.expect(_tokentype.types.parenR);
+ return val;
+};
+
+pp.parseParenAndDistinguishExpression = function (canBeArrow) {
+ var startPos = this.start,
+ startLoc = this.startLoc,
+ val = undefined;
+ if (this.options.ecmaVersion >= 6) {
+ this.next();
+
+ if (this.options.ecmaVersion >= 7 && this.type === _tokentype.types._for) {
+ return this.parseComprehension(this.startNodeAt(startPos, startLoc), true);
+ }
+
+ var innerStartPos = this.start,
+ innerStartLoc = this.startLoc;
+ var exprList = [],
+ first = true;
+ var refShorthandDefaultPos = { start: 0 },
+ spreadStart = undefined,
+ innerParenStart = undefined;
+ while (this.type !== _tokentype.types.parenR) {
+ first ? first = false : this.expect(_tokentype.types.comma);
+ if (this.type === _tokentype.types.ellipsis) {
+ spreadStart = this.start;
+ exprList.push(this.parseParenItem(this.parseRest()));
+ break;
+ } else {
+ if (this.type === _tokentype.types.parenL && !innerParenStart) {
+ innerParenStart = this.start;
+ }
+ exprList.push(this.parseMaybeAssign(false, refShorthandDefaultPos, this.parseParenItem));
+ }
+ }
+ var innerEndPos = this.start,
+ innerEndLoc = this.startLoc;
+ this.expect(_tokentype.types.parenR);
+
+ if (canBeArrow && !this.canInsertSemicolon() && this.eat(_tokentype.types.arrow)) {
+ if (innerParenStart) this.unexpected(innerParenStart);
+ return this.parseParenArrowList(startPos, startLoc, exprList);
+ }
+
+ if (!exprList.length) this.unexpected(this.lastTokStart);
+ if (spreadStart) this.unexpected(spreadStart);
+ if (refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);
+
+ if (exprList.length > 1) {
+ val = this.startNodeAt(innerStartPos, innerStartLoc);
+ val.expressions = exprList;
+ this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
+ } else {
+ val = exprList[0];
+ }
+ } else {
+ val = this.parseParenExpression();
+ }
+
+ if (this.options.preserveParens) {
+ var par = this.startNodeAt(startPos, startLoc);
+ par.expression = val;
+ return this.finishNode(par, "ParenthesizedExpression");
+ } else {
+ return val;
+ }
+};
+
+pp.parseParenItem = function (item) {
+ return item;
+};
+
+pp.parseParenArrowList = function (startPos, startLoc, exprList) {
+ return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList);
+};
+
+// New's precedence is slightly tricky. It must allow its argument
+// to be a `[]` or dot subscript expression, but not a call — at
+// least, not without wrapping it in parentheses. Thus, it uses the
+
+var empty = [];
+
+pp.parseNew = function () {
+ var node = this.startNode();
+ var meta = this.parseIdent(true);
+ if (this.options.ecmaVersion >= 6 && this.eat(_tokentype.types.dot)) {
+ node.meta = meta;
+ node.property = this.parseIdent(true);
+ if (node.property.name !== "target") this.raise(node.property.start, "The only valid meta property for new is new.target");
+ return this.finishNode(node, "MetaProperty");
+ }
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
+ if (this.eat(_tokentype.types.parenL)) node.arguments = this.parseExprList(_tokentype.types.parenR, false);else node.arguments = empty;
+ return this.finishNode(node, "NewExpression");
+};
+
+// Parse template expression.
+
+pp.parseTemplateElement = function () {
+ var elem = this.startNode();
+ elem.value = {
+ raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"),
+ cooked: this.value
+ };
+ this.next();
+ elem.tail = this.type === _tokentype.types.backQuote;
+ return this.finishNode(elem, "TemplateElement");
+};
+
+pp.parseTemplate = function () {
+ var node = this.startNode();
+ this.next();
+ node.expressions = [];
+ var curElt = this.parseTemplateElement();
+ node.quasis = [curElt];
+ while (!curElt.tail) {
+ this.expect(_tokentype.types.dollarBraceL);
+ node.expressions.push(this.parseExpression());
+ this.expect(_tokentype.types.braceR);
+ node.quasis.push(curElt = this.parseTemplateElement());
+ }
+ this.next();
+ return this.finishNode(node, "TemplateLiteral");
+};
+
+// Parse an object literal or binding pattern.
+
+pp.parseObj = function (isPattern, refShorthandDefaultPos) {
+ var node = this.startNode(),
+ first = true,
+ propHash = {};
+ node.properties = [];
+ this.next();
+ while (!this.eat(_tokentype.types.braceR)) {
+ if (!first) {
+ this.expect(_tokentype.types.comma);
+ if (this.afterTrailingComma(_tokentype.types.braceR)) break;
+ } else first = false;
+
+ var prop = this.startNode(),
+ isGenerator = undefined,
+ startPos = undefined,
+ startLoc = undefined;
+ if (this.options.ecmaVersion >= 6) {
+ prop.method = false;
+ prop.shorthand = false;
+ if (isPattern || refShorthandDefaultPos) {
+ startPos = this.start;
+ startLoc = this.startLoc;
+ }
+ if (!isPattern) isGenerator = this.eat(_tokentype.types.star);
+ }
+ this.parsePropertyName(prop);
+ this.parsePropertyValue(prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos);
+ this.checkPropClash(prop, propHash);
+ node.properties.push(this.finishNode(prop, "Property"));
+ }
+ return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression");
+};
+
+pp.parsePropertyValue = function (prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos) {
+ if (this.eat(_tokentype.types.colon)) {
+ prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refShorthandDefaultPos);
+ prop.kind = "init";
+ } else if (this.options.ecmaVersion >= 6 && this.type === _tokentype.types.parenL) {
+ if (isPattern) this.unexpected();
+ prop.kind = "init";
+ prop.method = true;
+ prop.value = this.parseMethod(isGenerator);
+ } else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && (this.type != _tokentype.types.comma && this.type != _tokentype.types.braceR)) {
+ if (isGenerator || isPattern) this.unexpected();
+ prop.kind = prop.key.name;
+ this.parsePropertyName(prop);
+ prop.value = this.parseMethod(false);
+ var paramCount = prop.kind === "get" ? 0 : 1;
+ if (prop.value.params.length !== paramCount) {
+ var start = prop.value.start;
+ if (prop.kind === "get") this.raise(start, "getter should have no params");else this.raise(start, "setter should have exactly one param");
+ }
+ } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
+ prop.kind = "init";
+ if (isPattern) {
+ if (this.isKeyword(prop.key.name) || this.strict && (_identifier.reservedWords.strictBind(prop.key.name) || _identifier.reservedWords.strict(prop.key.name)) || !this.options.allowReserved && this.isReservedWord(prop.key.name)) this.raise(prop.key.start, "Binding " + prop.key.name);
+ prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
+ } else if (this.type === _tokentype.types.eq && refShorthandDefaultPos) {
+ if (!refShorthandDefaultPos.start) refShorthandDefaultPos.start = this.start;
+ prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
+ } else {
+ prop.value = prop.key;
+ }
+ prop.shorthand = true;
+ } else this.unexpected();
+};
+
+pp.parsePropertyName = function (prop) {
+ if (this.options.ecmaVersion >= 6) {
+ if (this.eat(_tokentype.types.bracketL)) {
+ prop.computed = true;
+ prop.key = this.parseMaybeAssign();
+ this.expect(_tokentype.types.bracketR);
+ return prop.key;
+ } else {
+ prop.computed = false;
+ }
+ }
+ return prop.key = this.type === _tokentype.types.num || this.type === _tokentype.types.string ? this.parseExprAtom() : this.parseIdent(true);
+};
+
+// Initialize empty function node.
+
+pp.initFunction = function (node) {
+ node.id = null;
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = false;
+ node.expression = false;
+ }
+};
+
+// Parse object or class method.
+
+pp.parseMethod = function (isGenerator) {
+ var node = this.startNode();
+ this.initFunction(node);
+ this.expect(_tokentype.types.parenL);
+ node.params = this.parseBindingList(_tokentype.types.parenR, false, false);
+ var allowExpressionBody = undefined;
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = isGenerator;
+ }
+ this.parseFunctionBody(node, false);
+ return this.finishNode(node, "FunctionExpression");
+};
+
+// Parse arrow function expression with given parameters.
+
+pp.parseArrowExpression = function (node, params) {
+ this.initFunction(node);
+ node.params = this.toAssignableList(params, true);
+ this.parseFunctionBody(node, true);
+ return this.finishNode(node, "ArrowFunctionExpression");
+};
+
+// Parse function body and check parameters.
+
+pp.parseFunctionBody = function (node, allowExpression) {
+ var isExpression = allowExpression && this.type !== _tokentype.types.braceL;
+
+ if (isExpression) {
+ node.body = this.parseMaybeAssign();
+ node.expression = true;
+ } else {
+ // Start a new scope with regard to labels and the `inFunction`
+ // flag (restore them to their old value afterwards).
+ var oldInFunc = this.inFunction,
+ oldInGen = this.inGenerator,
+ oldLabels = this.labels;
+ this.inFunction = true;this.inGenerator = node.generator;this.labels = [];
+ node.body = this.parseBlock(true);
+ node.expression = false;
+ this.inFunction = oldInFunc;this.inGenerator = oldInGen;this.labels = oldLabels;
+ }
+
+ // If this is a strict mode function, verify that argument names
+ // are not repeated, and it does not try to bind the words `eval`
+ // or `arguments`.
+ if (this.strict || !isExpression && node.body.body.length && this.isUseStrict(node.body.body[0])) {
+ var nameHash = {},
+ oldStrict = this.strict;
+ this.strict = true;
+ if (node.id) this.checkLVal(node.id, true);
+ for (var i = 0; i < node.params.length; i++) {
+ this.checkLVal(node.params[i], true, nameHash);
+ }this.strict = oldStrict;
+ }
+};
+
+// Parses a comma-separated list of expressions, and returns them as
+// an array. `close` is the token type that ends the list, and
+// `allowEmpty` can be turned on to allow subsequent commas with
+// nothing in between them to be parsed as `null` (which is needed
+// for array literals).
+
+pp.parseExprList = function (close, allowTrailingComma, allowEmpty, refShorthandDefaultPos) {
+ var elts = [],
+ first = true;
+ while (!this.eat(close)) {
+ if (!first) {
+ this.expect(_tokentype.types.comma);
+ if (allowTrailingComma && this.afterTrailingComma(close)) break;
+ } else first = false;
+
+ var elt = undefined;
+ if (allowEmpty && this.type === _tokentype.types.comma) elt = null;else if (this.type === _tokentype.types.ellipsis) elt = this.parseSpread(refShorthandDefaultPos);else elt = this.parseMaybeAssign(false, refShorthandDefaultPos);
+ elts.push(elt);
+ }
+ return elts;
+};
+
+// Parse the next token as an identifier. If `liberal` is true (used
+// when parsing properties), it will also convert keywords into
+// identifiers.
+
+pp.parseIdent = function (liberal) {
+ var node = this.startNode();
+ if (liberal && this.options.allowReserved == "never") liberal = false;
+ if (this.type === _tokentype.types.name) {
+ if (!liberal && (!this.options.allowReserved && this.isReservedWord(this.value) || this.strict && _identifier.reservedWords.strict(this.value) && (this.options.ecmaVersion >= 6 || this.input.slice(this.start, this.end).indexOf("\\") == -1))) this.raise(this.start, "The keyword '" + this.value + "' is reserved");
+ node.name = this.value;
+ } else if (liberal && this.type.keyword) {
+ node.name = this.type.keyword;
+ } else {
+ this.unexpected();
+ }
+ this.next();
+ return this.finishNode(node, "Identifier");
+};
+
+// Parses yield expression inside generator.
+
+pp.parseYield = function () {
+ var node = this.startNode();
+ this.next();
+ if (this.type == _tokentype.types.semi || this.canInsertSemicolon() || this.type != _tokentype.types.star && !this.type.startsExpr) {
+ node.delegate = false;
+ node.argument = null;
+ } else {
+ node.delegate = this.eat(_tokentype.types.star);
+ node.argument = this.parseMaybeAssign();
+ }
+ return this.finishNode(node, "YieldExpression");
+};
+
+// Parses array and generator comprehensions.
+
+pp.parseComprehension = function (node, isGenerator) {
+ node.blocks = [];
+ while (this.type === _tokentype.types._for) {
+ var block = this.startNode();
+ this.next();
+ this.expect(_tokentype.types.parenL);
+ block.left = this.parseBindingAtom();
+ this.checkLVal(block.left, true);
+ this.expectContextual("of");
+ block.right = this.parseExpression();
+ this.expect(_tokentype.types.parenR);
+ node.blocks.push(this.finishNode(block, "ComprehensionBlock"));
+ }
+ node.filter = this.eat(_tokentype.types._if) ? this.parseParenExpression() : null;
+ node.body = this.parseExpression();
+ this.expect(isGenerator ? _tokentype.types.parenR : _tokentype.types.bracketR);
+ node.generator = isGenerator;
+ return this.finishNode(node, "ComprehensionExpression");
+};
+
+},{"./identifier":2,"./state":10,"./tokentype":14,"./util":15}],2:[function(_dereq_,module,exports){
+// This is a trick taken from Esprima. It turns out that, on
+// non-Chrome browsers, to check whether a string is in a set, a
+// predicate containing a big ugly `switch` statement is faster than
+// a regular expression, and on Chrome the two are about on par.
+// This function uses `eval` (non-lexical) to produce such a
+// predicate from a space-separated string of words.
+//
+// It starts by sorting the words by length.
+
+"use strict";
+
+exports.__esModule = true;
+exports.isIdentifierStart = isIdentifierStart;
+exports.isIdentifierChar = isIdentifierChar;
+function makePredicate(words) {
+ words = words.split(" ");
+ var f = "",
+ cats = [];
+ out: for (var i = 0; i < words.length; ++i) {
+ for (var j = 0; j < cats.length; ++j) {
+ if (cats[j][0].length == words[i].length) {
+ cats[j].push(words[i]);
+ continue out;
+ }
+ }cats.push([words[i]]);
+ }
+ function compareTo(arr) {
+ if (arr.length == 1) return f += "return str === " + JSON.stringify(arr[0]) + ";";
+ f += "switch(str){";
+ for (var i = 0; i < arr.length; ++i) {
+ f += "case " + JSON.stringify(arr[i]) + ":";
+ }f += "return true}return false;";
+ }
+
+ // When there are more than three length categories, an outer
+ // switch first dispatches on the lengths, to save on comparisons.
+
+ if (cats.length > 3) {
+ cats.sort(function (a, b) {
+ return b.length - a.length;
+ });
+ f += "switch(str.length){";
+ for (var i = 0; i < cats.length; ++i) {
+ var cat = cats[i];
+ f += "case " + cat[0].length + ":";
+ compareTo(cat);
+ }
+ f += "}"
+
+ // Otherwise, simply generate a flat `switch` statement.
+
+ ;
+ } else {
+ compareTo(words);
+ }
+ return new Function("str", f);
+}
+
+// Reserved word lists for various dialects of the language
+
+var reservedWords = {
+ 3: makePredicate("abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile"),
+ 5: makePredicate("class enum extends super const export import"),
+ 6: makePredicate("enum await"),
+ strict: makePredicate("implements interface let package private protected public static yield"),
+ strictBind: makePredicate("eval arguments")
+};
+
+exports.reservedWords = reservedWords;
+// And the keywords
+
+var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";
+
+var keywords = {
+ 5: makePredicate(ecma5AndLessKeywords),
+ 6: makePredicate(ecma5AndLessKeywords + " let const class extends export import yield super")
+};
+
+exports.keywords = keywords;
+// ## Character categories
+
+// Big ugly regular expressions that match characters in the
+// whitespace, identifier, and identifier-start categories. These
+// are only applied when a character is found to actually have a
+// code point above 128.
+// Generated by `tools/generate-identifier-regex.js`.
+
+var nonASCIIidentifierStartChars = "ªµºÀ-ÖØ-öø-ˁˆ-ˑˠ-ˤˬˮͰ-ʹͶͷͺ-ͽͿΆΈ-ΊΌΎ-ΡΣ-ϵϷ-ҁҊ-ԯԱ-Ֆՙա-ևא-תװ-ײؠ-يٮٯٱ-ۓەۥۦۮۯۺ-ۼۿܐܒ-ܯݍ-ޥޱߊ-ߪߴߵߺࠀ-ࠕࠚࠤࠨࡀ-ࡘࢠ-ࢲऄ-हऽॐक़-ॡॱ-ঀঅ-ঌএঐও-নপ-রলশ-হঽৎড়ঢ়য়-ৡৰৱਅ-ਊਏਐਓ-ਨਪ-ਰਲਲ਼ਵਸ਼ਸਹਖ਼-ੜਫ਼ੲ-ੴઅ-ઍએ-ઑઓ-નપ-રલળવ-હઽૐૠૡଅ-ଌଏଐଓ-ନପ-ରଲଳଵ-ହଽଡ଼ଢ଼ୟ-ୡୱஃஅ-ஊஎ-ஐஒ-கஙசஜஞடணதந-பம-ஹௐఅ-ఌఎ-ఐఒ-నప-హఽౘౙౠౡಅ-ಌಎ-ಐಒ-ನಪ-ಳವ-ಹಽೞೠೡೱೲഅ-ഌഎ-ഐഒ-ഺഽൎൠൡൺ-ൿඅ-ඖක-නඳ-රලව-ෆก-ะาำเ-ๆກຂຄງຈຊຍດ-ທນ-ຟມ-ຣລວສຫອ-ະາຳຽເ-ໄໆໜ-ໟༀཀ-ཇཉ-ཬྈ-ྌက-ဪဿၐ-ၕၚ-ၝၡၥၦၮ-ၰၵ-ႁႎႠ-ჅჇჍა-ჺჼ-ቈቊ-ቍቐ-ቖቘቚ-ቝበ-ኈኊ-ኍነ-ኰኲ-ኵኸ-ኾዀዂ-ዅወ-ዖዘ-ጐጒ-ጕጘ-ፚᎀ-ᎏᎠ-Ᏼᐁ-ᙬᙯ-ᙿᚁ-ᚚᚠ-ᛪᛮ-ᛸᜀ-ᜌᜎ-ᜑᜠ-ᜱᝀ-ᝑᝠ-ᝬᝮ-ᝰក-ឳៗៜᠠ-ᡷᢀ-ᢨᢪᢰ-ᣵᤀ-ᤞᥐ-ᥭᥰ-ᥴᦀ-ᦫᧁ-ᧇᨀ-ᨖᨠ-ᩔᪧᬅ-ᬳᭅ-ᭋᮃ-ᮠᮮᮯᮺ-ᯥᰀ-ᰣᱍ-ᱏᱚ-ᱽᳩ-ᳬᳮ-ᳱᳵᳶᴀ-ᶿḀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼιῂ-ῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲ-ῴῶ-ῼⁱⁿₐ-ₜℂℇℊ-ℓℕ℘-ℝℤΩℨK-ℹℼ-ℿⅅ-ⅉⅎⅠ-ↈⰀ-Ⱞⰰ-ⱞⱠ-ⳤⳫ-ⳮⳲⳳⴀ-ⴥⴧⴭⴰ-ⵧⵯⶀ-ⶖⶠ-ⶦⶨ-ⶮⶰ-ⶶⶸ-ⶾⷀ-ⷆⷈ-ⷎⷐ-ⷖⷘ-ⷞ々-〇〡-〩〱-〵〸-〼ぁ-ゖ゛-ゟァ-ヺー-ヿㄅ-ㄭㄱ-ㆎㆠ-ㆺㇰ-ㇿ㐀-䶵一-鿌ꀀ-ꒌꓐ-ꓽꔀ-ꘌꘐ-ꘟꘪꘫꙀ-ꙮꙿ-ꚝꚠ-ꛯꜗ-ꜟꜢ-ꞈꞋ-ꞎꞐ-ꞭꞰꞱꟷ-ꠁꠃ-ꠅꠇ-ꠊꠌ-ꠢꡀ-ꡳꢂ-ꢳꣲ-ꣷꣻꤊ-ꤥꤰ-ꥆꥠ-ꥼꦄ-ꦲꧏꧠ-ꧤꧦ-ꧯꧺ-ꧾꨀ-ꨨꩀ-ꩂꩄ-ꩋꩠ-ꩶꩺꩾ-ꪯꪱꪵꪶꪹ-ꪽꫀꫂꫛ-ꫝꫠ-ꫪꫲ-ꫴꬁ-ꬆꬉ-ꬎꬑ-ꬖꬠ-ꬦꬨ-ꬮꬰ-ꭚꭜ-ꭟꭤꭥꯀ-ꯢ가-힣ힰ-ퟆퟋ-ퟻ豈-舘並-龎ff-stﬓ-ﬗיִײַ-ﬨשׁ-זּטּ-לּמּנּסּףּפּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-ﷻﹰ-ﹴﹶ-ﻼＡ-Ｚａ-ｚｦ-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ";
+var nonASCIIidentifierChars = "·̀-ͯ·҃-֑҇-ׇֽֿׁׂׅׄؐ-ًؚ-٩ٰۖ-ۜ۟-۪ۤۧۨ-ۭ۰-۹ܑܰ-݊ަ-ް߀-߉߫-߳ࠖ-࠙ࠛ-ࠣࠥ-ࠧࠩ-࡙࠭-࡛ࣤ-ःऺ-़ा-ॏ॑-ॗॢॣ०-९ঁ-ঃ়া-ৄেৈো-্ৗৢৣ০-৯ਁ-ਃ਼ਾ-ੂੇੈੋ-੍ੑ੦-ੱੵઁ-ઃ઼ા-ૅે-ૉો-્ૢૣ૦-૯ଁ-ଃ଼ା-ୄେୈୋ-୍ୖୗୢୣ୦-୯ஂா-ூெ-ைொ-்ௗ௦-௯ఀ-ఃా-ౄె-ైొ-్ౕౖౢౣ౦-౯ಁ-ಃ಼ಾ-ೄೆ-ೈೊ-್ೕೖೢೣ೦-೯ഁ-ഃാ-ൄെ-ൈൊ-്ൗൢൣ൦-൯ංඃ්ා-ුූෘ-ෟ෦-෯ෲෳัิ-ฺ็-๎๐-๙ັິ-ູົຼ່-ໍ໐-໙༘༙༠-༩༹༵༷༾༿ཱ-྄྆྇ྍ-ྗྙ-ྼ࿆ါ-ှ၀-၉ၖ-ၙၞ-ၠၢ-ၤၧ-ၭၱ-ၴႂ-ႍႏ-ႝ፝-፟፩-፱ᜒ-᜔ᜲ-᜴ᝒᝓᝲᝳ឴-៓៝០-៩᠋-᠍᠐-᠙ᢩᤠ-ᤫᤰ-᤻᥆-᥏ᦰ-ᧀᧈᧉ᧐-᧚ᨗ-ᨛᩕ-ᩞ᩠-᩿᩼-᪉᪐-᪙᪰-᪽ᬀ-ᬄ᬴-᭄᭐-᭙᭫-᭳ᮀ-ᮂᮡ-ᮭ᮰-᮹᯦-᯳ᰤ-᰷᱀-᱉᱐-᱙᳐-᳔᳒-᳨᳭ᳲ-᳴᳸᳹᷀-᷵᷼-᷿‿⁀⁔⃐-⃥⃜⃡-⃰⳯-⵿⳱ⷠ-〪ⷿ-゙゚〯꘠-꘩꙯ꙴ-꙽ꚟ꛰꛱ꠂ꠆ꠋꠣ-ꠧꢀꢁꢴ-꣄꣐-꣙꣠-꣱꤀-꤉ꤦ-꤭ꥇ-꥓ꦀ-ꦃ꦳-꧀꧐-꧙ꧥ꧰-꧹ꨩ-ꨶꩃꩌꩍ꩐-꩙ꩻ-ꩽꪰꪲ-ꪴꪷꪸꪾ꪿꫁ꫫ-ꫯꫵ꫶ꯣ-ꯪ꯬꯭꯰-꯹ﬞ︀-️︠-︭︳︴﹍-﹏０-９＿";
+
+var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
+var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
+
+nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;
+
+// These are a run-length and offset encoded representation of the
+// >0xffff code points that are a valid part of identifiers. The
+// offset starts at 0x10000, and each pair of numbers represents an
+// offset to the next range, and then a size of the range. They were
+// generated by tools/generate-identifier-regex.js
+var astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 17, 26, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 99, 39, 9, 51, 157, 310, 10, 21, 11, 7, 153, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 98, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 26, 45, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 955, 52, 76, 44, 33, 24, 27, 35, 42, 34, 4, 0, 13, 47, 15, 3, 22, 0, 38, 17, 2, 24, 133, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 32, 4, 287, 47, 21, 1, 2, 0, 185, 46, 82, 47, 21, 0, 60, 42, 502, 63, 32, 0, 449, 56, 1288, 920, 104, 110, 2962, 1070, 13266, 568, 8, 30, 114, 29, 19, 47, 17, 3, 32, 20, 6, 18, 881, 68, 12, 0, 67, 12, 16481, 1, 3071, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 4149, 196, 1340, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42710, 42, 4148, 12, 221, 16355, 541];
+var astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 1306, 2, 54, 14, 32, 9, 16, 3, 46, 10, 54, 9, 7, 2, 37, 13, 2, 9, 52, 0, 13, 2, 49, 13, 16, 9, 83, 11, 168, 11, 6, 9, 8, 2, 57, 0, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 316, 19, 13, 9, 214, 6, 3, 8, 112, 16, 16, 9, 82, 12, 9, 9, 535, 9, 20855, 9, 135, 4, 60, 6, 26, 9, 1016, 45, 17, 3, 19723, 1, 5319, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 4305, 6, 792618, 239];
+
+// This has a complexity linear to the value of the code. The
+// assumption is that looking up astral identifier characters is
+// rare.
+function isInAstralSet(code, set) {
+ var pos = 0x10000;
+ for (var i = 0; i < set.length; i += 2) {
+ pos += set[i];
+ if (pos > code) return false;
+ pos += set[i + 1];
+ if (pos >= code) return true;
+ }
+}
+
+// Test whether a given character code starts an identifier.
+
+function isIdentifierStart(code, astral) {
+ if (code < 65) return code === 36;
+ if (code < 91) return true;
+ if (code < 97) return code === 95;
+ if (code < 123) return true;
+ if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code));
+ if (astral === false) return false;
+ return isInAstralSet(code, astralIdentifierStartCodes);
+}
+
+// Test whether a given character is part of an identifier.
+
+function isIdentifierChar(code, astral) {
+ if (code < 48) return code === 36;
+ if (code < 58) return true;
+ if (code < 65) return false;
+ if (code < 91) return true;
+ if (code < 97) return code === 95;
+ if (code < 123) return true;
+ if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code));
+ if (astral === false) return false;
+ return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes);
+}
+
+},{}],3:[function(_dereq_,module,exports){
+// Acorn is a tiny, fast JavaScript parser written in JavaScript.
+//
+// Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and
+// various contributors and released under an MIT license.
+//
+// Git repositories for Acorn are available at
+//
+// http://marijnhaverbeke.nl/git/acorn
+// https://github.com/marijnh/acorn.git
+//
+// Please use the [github bug tracker][ghbt] to report issues.
+//
+// [ghbt]: https://github.com/marijnh/acorn/issues
+//
+// This file defines the main parser interface. The library also comes
+// with a [error-tolerant parser][dammit] and an
+// [abstract syntax tree walker][walk], defined in other files.
+//
+// [dammit]: acorn_loose.js
+// [walk]: util/walk.js
+
+"use strict";
+
+exports.__esModule = true;
+exports.parse = parse;
+exports.parseExpressionAt = parseExpressionAt;
+exports.tokenizer = tokenizer;
+
+var _state = _dereq_("./state");
+
+var _options = _dereq_("./options");
+
+_dereq_("./parseutil");
+
+_dereq_("./statement");
+
+_dereq_("./lval");
+
+_dereq_("./expression");
+
+_dereq_("./location");
+
+exports.Parser = _state.Parser;
+exports.plugins = _state.plugins;
+exports.defaultOptions = _options.defaultOptions;
+
+var _locutil = _dereq_("./locutil");
+
+exports.Position = _locutil.Position;
+exports.SourceLocation = _locutil.SourceLocation;
+exports.getLineInfo = _locutil.getLineInfo;
+
+var _node = _dereq_("./node");
+
+exports.Node = _node.Node;
+
+var _tokentype = _dereq_("./tokentype");
+
+exports.TokenType = _tokentype.TokenType;
+exports.tokTypes = _tokentype.types;
+
+var _tokencontext = _dereq_("./tokencontext");
+
+exports.TokContext = _tokencontext.TokContext;
+exports.tokContexts = _tokencontext.types;
+
+var _identifier = _dereq_("./identifier");
+
+exports.isIdentifierChar = _identifier.isIdentifierChar;
+exports.isIdentifierStart = _identifier.isIdentifierStart;
+
+var _tokenize = _dereq_("./tokenize");
+
+exports.Token = _tokenize.Token;
+
+var _whitespace = _dereq_("./whitespace");
+
+exports.isNewLine = _whitespace.isNewLine;
+exports.lineBreak = _whitespace.lineBreak;
+exports.lineBreakG = _whitespace.lineBreakG;
+var version = "2.3.0";
+
+exports.version = version;
+// The main exported interface (under `self.acorn` when in the
+// browser) is a `parse` function that takes a code string and
+// returns an abstract syntax tree as specified by [Mozilla parser
+// API][api].
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+
+function parse(input, options) {
+ return new _state.Parser(options, input).parse();
+}
+
+// This function tries to parse a single expression at a given
+// offset in a string. Useful for parsing mixed-language formats
+// that embed JavaScript expressions.
+
+function parseExpressionAt(input, pos, options) {
+ var p = new _state.Parser(options, input, pos);
+ p.nextToken();
+ return p.parseExpression();
+}
+
+// Acorn is organized as a tokenizer and a recursive-descent parser.
+// The `tokenize` export provides an interface to the tokenizer.
+
+function tokenizer(input, options) {
+ return new _state.Parser(options, input);
+}
+
+},{"./expression":1,"./identifier":2,"./location":4,"./locutil":5,"./lval":6,"./node":7,"./options":8,"./parseutil":9,"./state":10,"./statement":11,"./tokencontext":12,"./tokenize":13,"./tokentype":14,"./whitespace":16}],4:[function(_dereq_,module,exports){
+"use strict";
+
+var _state = _dereq_("./state");
+
+var _locutil = _dereq_("./locutil");
+
+var pp = _state.Parser.prototype;
+
+// This function is used to raise exceptions on parse errors. It
+// takes an offset integer (into the current `input`) to indicate
+// the location of the error, attaches the position to the end
+// of the error message, and then raises a `SyntaxError` with that
+// message.
+
+pp.raise = function (pos, message) {
+ var loc = _locutil.getLineInfo(this.input, pos);
+ message += " (" + loc.line + ":" + loc.column + ")";
+ var err = new SyntaxError(message);
+ err.pos = pos;err.loc = loc;err.raisedAt = this.pos;
+ throw err;
+};
+
+pp.curPosition = function () {
+ if (this.options.locations) {
+ return new _locutil.Position(this.curLine, this.pos - this.lineStart);
+ }
+};
+
+},{"./locutil":5,"./state":10}],5:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+exports.getLineInfo = getLineInfo;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _whitespace = _dereq_("./whitespace");
+
+// These are used when `options.locations` is on, for the
+// `startLoc` and `endLoc` properties.
+
+var Position = (function () {
+ function Position(line, col) {
+ _classCallCheck(this, Position);
+
+ this.line = line;
+ this.column = col;
+ }
+
+ Position.prototype.offset = function offset(n) {
+ return new Position(this.line, this.column + n);
+ };
+
+ return Position;
+})();
+
+exports.Position = Position;
+
+var SourceLocation = function SourceLocation(p, start, end) {
+ _classCallCheck(this, SourceLocation);
+
+ this.start = start;
+ this.end = end;
+ if (p.sourceFile !== null) this.source = p.sourceFile;
+};
+
+exports.SourceLocation = SourceLocation;
+
+// The `getLineInfo` function is mostly useful when the
+// `locations` option is off (for performance reasons) and you
+// want to find the line/column position for a given character
+// offset. `input` should be the code string that the offset refers
+// into.
+
+function getLineInfo(input, offset) {
+ for (var line = 1, cur = 0;;) {
+ _whitespace.lineBreakG.lastIndex = cur;
+ var match = _whitespace.lineBreakG.exec(input);
+ if (match && match.index < offset) {
+ ++line;
+ cur = match.index + match[0].length;
+ } else {
+ return new Position(line, offset - cur);
+ }
+ }
+}
+
+},{"./whitespace":16}],6:[function(_dereq_,module,exports){
+"use strict";
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _identifier = _dereq_("./identifier");
+
+var _util = _dereq_("./util");
+
+var pp = _state.Parser.prototype;
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+pp.toAssignable = function (node, isBinding) {
+ if (this.options.ecmaVersion >= 6 && node) {
+ switch (node.type) {
+ case "Identifier":
+ case "ObjectPattern":
+ case "ArrayPattern":
+ case "AssignmentPattern":
+ break;
+
+ case "ObjectExpression":
+ node.type = "ObjectPattern";
+ for (var i = 0; i < node.properties.length; i++) {
+ var prop = node.properties[i];
+ if (prop.kind !== "init") this.raise(prop.key.start, "Object pattern can't contain getter or setter");
+ this.toAssignable(prop.value, isBinding);
+ }
+ break;
+
+ case "ArrayExpression":
+ node.type = "ArrayPattern";
+ this.toAssignableList(node.elements, isBinding);
+ break;
+
+ case "AssignmentExpression":
+ if (node.operator === "=") {
+ node.type = "AssignmentPattern";
+ delete node.operator;
+ } else {
+ this.raise(node.left.end, "Only '=' operator can be used for specifying default value.");
+ }
+ break;
+
+ case "ParenthesizedExpression":
+ node.expression = this.toAssignable(node.expression, isBinding);
+ break;
+
+ case "MemberExpression":
+ if (!isBinding) break;
+
+ default:
+ this.raise(node.start, "Assigning to rvalue");
+ }
+ }
+ return node;
+};
+
+// Convert list of expression atoms to binding list.
+
+pp.toAssignableList = function (exprList, isBinding) {
+ var end = exprList.length;
+ if (end) {
+ var last = exprList[end - 1];
+ if (last && last.type == "RestElement") {
+ --end;
+ } else if (last && last.type == "SpreadElement") {
+ last.type = "RestElement";
+ var arg = last.argument;
+ this.toAssignable(arg, isBinding);
+ if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern") this.unexpected(arg.start);
+ --end;
+ }
+ }
+ for (var i = 0; i < end; i++) {
+ var elt = exprList[i];
+ if (elt) this.toAssignable(elt, isBinding);
+ }
+ return exprList;
+};
+
+// Parses spread element.
+
+pp.parseSpread = function (refShorthandDefaultPos) {
+ var node = this.startNode();
+ this.next();
+ node.argument = this.parseMaybeAssign(refShorthandDefaultPos);
+ return this.finishNode(node, "SpreadElement");
+};
+
+pp.parseRest = function () {
+ var node = this.startNode();
+ this.next();
+ node.argument = this.type === _tokentype.types.name || this.type === _tokentype.types.bracketL ? this.parseBindingAtom() : this.unexpected();
+ return this.finishNode(node, "RestElement");
+};
+
+// Parses lvalue (assignable) atom.
+
+pp.parseBindingAtom = function () {
+ if (this.options.ecmaVersion < 6) return this.parseIdent();
+ switch (this.type) {
+ case _tokentype.types.name:
+ return this.parseIdent();
+
+ case _tokentype.types.bracketL:
+ var node = this.startNode();
+ this.next();
+ node.elements = this.parseBindingList(_tokentype.types.bracketR, true, true);
+ return this.finishNode(node, "ArrayPattern");
+
+ case _tokentype.types.braceL:
+ return this.parseObj(true);
+
+ default:
+ this.unexpected();
+ }
+};
+
+pp.parseBindingList = function (close, allowEmpty, allowTrailingComma) {
+ var elts = [],
+ first = true;
+ while (!this.eat(close)) {
+ if (first) first = false;else this.expect(_tokentype.types.comma);
+ if (allowEmpty && this.type === _tokentype.types.comma) {
+ elts.push(null);
+ } else if (allowTrailingComma && this.afterTrailingComma(close)) {
+ break;
+ } else if (this.type === _tokentype.types.ellipsis) {
+ var rest = this.parseRest();
+ this.parseBindingListItem(rest);
+ elts.push(rest);
+ this.expect(close);
+ break;
+ } else {
+ var elem = this.parseMaybeDefault(this.start, this.startLoc);
+ this.parseBindingListItem(elem);
+ elts.push(elem);
+ }
+ }
+ return elts;
+};
+
+pp.parseBindingListItem = function (param) {
+ return param;
+};
+
+// Parses assignment pattern around given atom if possible.
+
+pp.parseMaybeDefault = function (startPos, startLoc, left) {
+ left = left || this.parseBindingAtom();
+ if (!this.eat(_tokentype.types.eq)) return left;
+ var node = this.startNodeAt(startPos, startLoc);
+ node.left = left;
+ node.right = this.parseMaybeAssign();
+ return this.finishNode(node, "AssignmentPattern");
+};
+
+// Verify that a node is an lval — something that can be assigned
+// to.
+
+pp.checkLVal = function (expr, isBinding, checkClashes) {
+ switch (expr.type) {
+ case "Identifier":
+ if (this.strict && (_identifier.reservedWords.strictBind(expr.name) || _identifier.reservedWords.strict(expr.name))) this.raise(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode");
+ if (checkClashes) {
+ if (_util.has(checkClashes, expr.name)) this.raise(expr.start, "Argument name clash in strict mode");
+ checkClashes[expr.name] = true;
+ }
+ break;
+
+ case "MemberExpression":
+ if (isBinding) this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression");
+ break;
+
+ case "ObjectPattern":
+ for (var i = 0; i < expr.properties.length; i++) {
+ this.checkLVal(expr.properties[i].value, isBinding, checkClashes);
+ }break;
+
+ case "ArrayPattern":
+ for (var i = 0; i < expr.elements.length; i++) {
+ var elem = expr.elements[i];
+ if (elem) this.checkLVal(elem, isBinding, checkClashes);
+ }
+ break;
+
+ case "AssignmentPattern":
+ this.checkLVal(expr.left, isBinding, checkClashes);
+ break;
+
+ case "RestElement":
+ this.checkLVal(expr.argument, isBinding, checkClashes);
+ break;
+
+ case "ParenthesizedExpression":
+ this.checkLVal(expr.expression, isBinding, checkClashes);
+ break;
+
+ default:
+ this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue");
+ }
+};
+
+},{"./identifier":2,"./state":10,"./tokentype":14,"./util":15}],7:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _state = _dereq_("./state");
+
+var _locutil = _dereq_("./locutil");
+
+var Node = function Node(parser, pos, loc) {
+ _classCallCheck(this, Node);
+
+ this.type = "";
+ this.start = pos;
+ this.end = 0;
+ if (parser.options.locations) this.loc = new _locutil.SourceLocation(parser, loc);
+ if (parser.options.directSourceFile) this.sourceFile = parser.options.directSourceFile;
+ if (parser.options.ranges) this.range = [pos, 0];
+};
+
+exports.Node = Node;
+
+// Start an AST node, attaching a start offset.
+
+var pp = _state.Parser.prototype;
+
+pp.startNode = function () {
+ return new Node(this, this.start, this.startLoc);
+};
+
+pp.startNodeAt = function (pos, loc) {
+ return new Node(this, pos, loc);
+};
+
+// Finish an AST node, adding `type` and `end` properties.
+
+function finishNodeAt(node, type, pos, loc) {
+ node.type = type;
+ node.end = pos;
+ if (this.options.locations) node.loc.end = loc;
+ if (this.options.ranges) node.range[1] = pos;
+ return node;
+}
+
+pp.finishNode = function (node, type) {
+ return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc);
+};
+
+// Finish node at given position
+
+pp.finishNodeAt = function (node, type, pos, loc) {
+ return finishNodeAt.call(this, node, type, pos, loc);
+};
+
+},{"./locutil":5,"./state":10}],8:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+exports.getOptions = getOptions;
+
+var _util = _dereq_("./util");
+
+var _locutil = _dereq_("./locutil");
+
+// A second optional argument can be given to further configure
+// the parser process. These options are recognized:
+
+var defaultOptions = {
+ // `ecmaVersion` indicates the ECMAScript version to parse. Must
+ // be either 3, or 5, or 6. This influences support for strict
+ // mode, the set of reserved words, support for getters and
+ // setters and other features.
+ ecmaVersion: 5,
+ // Source type ("script" or "module") for different semantics
+ sourceType: "script",
+ // `onInsertedSemicolon` can be a callback that will be called
+ // when a semicolon is automatically inserted. It will be passed
+ // th position of the comma as an offset, and if `locations` is
+ // enabled, it is given the location as a `{line, column}` object
+ // as second argument.
+ onInsertedSemicolon: null,
+ // `onTrailingComma` is similar to `onInsertedSemicolon`, but for
+ // trailing commas.
+ onTrailingComma: null,
+ // By default, reserved words are not enforced. Disable
+ // `allowReserved` to enforce them. When this option has the
+ // value "never", reserved words and keywords can also not be
+ // used as property names.
+ allowReserved: true,
+ // When enabled, a return at the top level is not considered an
+ // error.
+ allowReturnOutsideFunction: false,
+ // When enabled, import/export statements are not constrained to
+ // appearing at the top of the program.
+ allowImportExportEverywhere: false,
+ // When enabled, hashbang directive in the beginning of file
+ // is allowed and treated as a line comment.
+ allowHashBang: false,
+ // When `locations` is on, `loc` properties holding objects with
+ // `start` and `end` properties in `{line, column}` form (with
+ // line being 1-based and column 0-based) will be attached to the
+ // nodes.
+ locations: false,
+ // A function can be passed as `onToken` option, which will
+ // cause Acorn to call that function with object in the same
+ // format as tokenize() returns. Note that you are not
+ // allowed to call the parser from the callback—that will
+ // corrupt its internal state.
+ onToken: null,
+ // A function can be passed as `onComment` option, which will
+ // cause Acorn to call that function with `(block, text, start,
+ // end)` parameters whenever a comment is skipped. `block` is a
+ // boolean indicating whether this is a block (`/* */`) comment,
+ // `text` is the content of the comment, and `start` and `end` are
+ // character offsets that denote the start and end of the comment.
+ // When the `locations` option is on, two more parameters are
+ // passed, the full `{line, column}` locations of the start and
+ // end of the comments. Note that you are not allowed to call the
+ // parser from the callback—that will corrupt its internal state.
+ onComment: null,
+ // Nodes have their start and end characters offsets recorded in
+ // `start` and `end` properties (directly on the node, rather than
+ // the `loc` object, which holds line/column data. To also add a
+ // [semi-standardized][range] `range` property holding a `[start,
+ // end]` array with the same numbers, set the `ranges` option to
+ // `true`.
+ //
+ // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
+ ranges: false,
+ // It is possible to parse multiple files into a single AST by
+ // passing the tree produced by parsing the first file as
+ // `program` option in subsequent parses. This will add the
+ // toplevel forms of the parsed file to the `Program` (top) node
+ // of an existing parse tree.
+ program: null,
+ // When `locations` is on, you can pass this to record the source
+ // file in every node's `loc` object.
+ sourceFile: null,
+ // This value, if given, is stored in every node, whether
+ // `locations` is on or off.
+ directSourceFile: null,
+ // When enabled, parenthesized expressions are represented by
+ // (non-standard) ParenthesizedExpression nodes
+ preserveParens: false,
+ plugins: {}
+};
+
+exports.defaultOptions = defaultOptions;
+// Interpret and default an options object
+
+function getOptions(opts) {
+ var options = {};
+ for (var opt in defaultOptions) {
+ options[opt] = opts && _util.has(opts, opt) ? opts[opt] : defaultOptions[opt];
+ }if (_util.isArray(options.onToken)) {
+ (function () {
+ var tokens = options.onToken;
+ options.onToken = function (token) {
+ return tokens.push(token);
+ };
+ })();
+ }
+ if (_util.isArray(options.onComment)) options.onComment = pushComment(options, options.onComment);
+
+ return options;
+}
+
+function pushComment(options, array) {
+ return function (block, text, start, end, startLoc, endLoc) {
+ var comment = {
+ type: block ? "Block" : "Line",
+ value: text,
+ start: start,
+ end: end
+ };
+ if (options.locations) comment.loc = new _locutil.SourceLocation(this, startLoc, endLoc);
+ if (options.ranges) comment.range = [start, end];
+ array.push(comment);
+ };
+}
+
+},{"./locutil":5,"./util":15}],9:[function(_dereq_,module,exports){
+"use strict";
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _whitespace = _dereq_("./whitespace");
+
+var pp = _state.Parser.prototype;
+
+// ## Parser utilities
+
+// Test whether a statement node is the string literal `"use strict"`.
+
+pp.isUseStrict = function (stmt) {
+ return this.options.ecmaVersion >= 5 && stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && stmt.expression.raw.slice(1, -1) === "use strict";
+};
+
+// Predicate that tests whether the next token is of the given
+// type, and if yes, consumes it as a side effect.
+
+pp.eat = function (type) {
+ if (this.type === type) {
+ this.next();
+ return true;
+ } else {
+ return false;
+ }
+};
+
+// Tests whether parsed token is a contextual keyword.
+
+pp.isContextual = function (name) {
+ return this.type === _tokentype.types.name && this.value === name;
+};
+
+// Consumes contextual keyword if possible.
+
+pp.eatContextual = function (name) {
+ return this.value === name && this.eat(_tokentype.types.name);
+};
+
+// Asserts that following token is given contextual keyword.
+
+pp.expectContextual = function (name) {
+ if (!this.eatContextual(name)) this.unexpected();
+};
+
+// Test whether a semicolon can be inserted at the current position.
+
+pp.canInsertSemicolon = function () {
+ return this.type === _tokentype.types.eof || this.type === _tokentype.types.braceR || _whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.start));
+};
+
+pp.insertSemicolon = function () {
+ if (this.canInsertSemicolon()) {
+ if (this.options.onInsertedSemicolon) this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc);
+ return true;
+ }
+};
+
+// Consume a semicolon, or, failing that, see if we are allowed to
+// pretend that there is a semicolon at this position.
+
+pp.semicolon = function () {
+ if (!this.eat(_tokentype.types.semi) && !this.insertSemicolon()) this.unexpected();
+};
+
+pp.afterTrailingComma = function (tokType) {
+ if (this.type == tokType) {
+ if (this.options.onTrailingComma) this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc);
+ this.next();
+ return true;
+ }
+};
+
+// Expect a token of a given type. If found, consume it, otherwise,
+// raise an unexpected token error.
+
+pp.expect = function (type) {
+ this.eat(type) || this.unexpected();
+};
+
+// Raise an unexpected token error.
+
+pp.unexpected = function (pos) {
+ this.raise(pos != null ? pos : this.start, "Unexpected token");
+};
+
+},{"./state":10,"./tokentype":14,"./whitespace":16}],10:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _identifier = _dereq_("./identifier");
+
+var _tokentype = _dereq_("./tokentype");
+
+var _whitespace = _dereq_("./whitespace");
+
+var _options = _dereq_("./options");
+
+// Registered plugins
+var plugins = {};
+
+exports.plugins = plugins;
+
+var Parser = (function () {
+ function Parser(options, input, startPos) {
+ _classCallCheck(this, Parser);
+
+ this.options = _options.getOptions(options);
+ this.sourceFile = this.options.sourceFile;
+ this.isKeyword = _identifier.keywords[this.options.ecmaVersion >= 6 ? 6 : 5];
+ this.isReservedWord = _identifier.reservedWords[this.options.ecmaVersion];
+ this.input = String(input);
+
+ // Used to signal to callers of `readWord1` whether the word
+ // contained any escape sequences. This is needed because words with
+ // escape sequences must not be interpreted as keywords.
+ this.containsEsc = false;
+
+ // Load plugins
+ this.loadPlugins(this.options.plugins);
+
+ // Set up token state
+
+ // The current position of the tokenizer in the input.
+ if (startPos) {
+ this.pos = startPos;
+ this.lineStart = Math.max(0, this.input.lastIndexOf("\n", startPos));
+ this.curLine = this.input.slice(0, this.lineStart).split(_whitespace.lineBreak).length;
+ } else {
+ this.pos = this.lineStart = 0;
+ this.curLine = 1;
+ }
+
+ // Properties of the current token:
+ // Its type
+ this.type = _tokentype.types.eof;
+ // For tokens that include more information than their type, the value
+ this.value = null;
+ // Its start and end offset
+ this.start = this.end = this.pos;
+ // And, if locations are used, the {line, column} object
+ // corresponding to those offsets
+ this.startLoc = this.endLoc = this.curPosition();
+
+ // Position information for the previous token
+ this.lastTokEndLoc = this.lastTokStartLoc = null;
+ this.lastTokStart = this.lastTokEnd = this.pos;
+
+ // The context stack is used to superficially track syntactic
+ // context to predict whether a regular expression is allowed in a
+ // given position.
+ this.context = this.initialContext();
+ this.exprAllowed = true;
+
+ // Figure out if it's a module code.
+ this.strict = this.inModule = this.options.sourceType === "module";
+
+ // Used to signify the start of a potential arrow function
+ this.potentialArrowAt = -1;
+
+ // Flags to track whether we are in a function, a generator.
+ this.inFunction = this.inGenerator = false;
+ // Labels in scope.
+ this.labels = [];
+
+ // If enabled, skip leading hashbang line.
+ if (this.pos === 0 && this.options.allowHashBang && this.input.slice(0, 2) === "#!") this.skipLineComment(2);
+ }
+
+ Parser.prototype.extend = function extend(name, f) {
+ this[name] = f(this[name]);
+ };
+
+ Parser.prototype.loadPlugins = function loadPlugins(pluginConfigs) {
+ for (var _name in pluginConfigs) {
+ var plugin = plugins[_name];
+ if (!plugin) throw new Error("Plugin '" + _name + "' not found");
+ plugin(this, pluginConfigs[_name]);
+ }
+ };
+
+ Parser.prototype.parse = function parse() {
+ var node = this.options.program || this.startNode();
+ this.nextToken();
+ return this.parseTopLevel(node);
+ };
+
+ return Parser;
+})();
+
+exports.Parser = Parser;
+
+},{"./identifier":2,"./options":8,"./tokentype":14,"./whitespace":16}],11:[function(_dereq_,module,exports){
+"use strict";
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _whitespace = _dereq_("./whitespace");
+
+var pp = _state.Parser.prototype;
+
+// ### Statement parsing
+
+// Parse a program. Initializes the parser, reads any number of
+// statements, and wraps them in a Program node. Optionally takes a
+// `program` argument. If present, the statements will be appended
+// to its body instead of creating a new node.
+
+pp.parseTopLevel = function (node) {
+ var first = true;
+ if (!node.body) node.body = [];
+ while (this.type !== _tokentype.types.eof) {
+ var stmt = this.parseStatement(true, true);
+ node.body.push(stmt);
+ if (first) {
+ if (this.isUseStrict(stmt)) this.setStrict(true);
+ first = false;
+ }
+ }
+ this.next();
+ if (this.options.ecmaVersion >= 6) {
+ node.sourceType = this.options.sourceType;
+ }
+ return this.finishNode(node, "Program");
+};
+
+var loopLabel = { kind: "loop" },
+ switchLabel = { kind: "switch" };
+
+// Parse a single statement.
+//
+// If expecting a statement and finding a slash operator, parse a
+// regular expression literal. This is to handle cases like
+// `if (foo) /blah/.exec(foo)`, where looking at the previous token
+// does not help.
+
+pp.parseStatement = function (declaration, topLevel) {
+ var starttype = this.type,
+ node = this.startNode();
+
+ // Most types of statements are recognized by the keyword they
+ // start with. Many are trivial to parse, some require a bit of
+ // complexity.
+
+ switch (starttype) {
+ case _tokentype.types._break:case _tokentype.types._continue:
+ return this.parseBreakContinueStatement(node, starttype.keyword);
+ case _tokentype.types._debugger:
+ return this.parseDebuggerStatement(node);
+ case _tokentype.types._do:
+ return this.parseDoStatement(node);
+ case _tokentype.types._for:
+ return this.parseForStatement(node);
+ case _tokentype.types._function:
+ if (!declaration && this.options.ecmaVersion >= 6) this.unexpected();
+ return this.parseFunctionStatement(node);
+ case _tokentype.types._class:
+ if (!declaration) this.unexpected();
+ return this.parseClass(node, true);
+ case _tokentype.types._if:
+ return this.parseIfStatement(node);
+ case _tokentype.types._return:
+ return this.parseReturnStatement(node);
+ case _tokentype.types._switch:
+ return this.parseSwitchStatement(node);
+ case _tokentype.types._throw:
+ return this.parseThrowStatement(node);
+ case _tokentype.types._try:
+ return this.parseTryStatement(node);
+ case _tokentype.types._let:case _tokentype.types._const:
+ if (!declaration) this.unexpected(); // NOTE: falls through to _var
+ case _tokentype.types._var:
+ return this.parseVarStatement(node, starttype);
+ case _tokentype.types._while:
+ return this.parseWhileStatement(node);
+ case _tokentype.types._with:
+ return this.parseWithStatement(node);
+ case _tokentype.types.braceL:
+ return this.parseBlock();
+ case _tokentype.types.semi:
+ return this.parseEmptyStatement(node);
+ case _tokentype.types._export:
+ case _tokentype.types._import:
+ if (!this.options.allowImportExportEverywhere) {
+ if (!topLevel) this.raise(this.start, "'import' and 'export' may only appear at the top level");
+ if (!this.inModule) this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'");
+ }
+ return starttype === _tokentype.types._import ? this.parseImport(node) : this.parseExport(node);
+
+ // If the statement does not start with a statement keyword or a
+ // brace, it's an ExpressionStatement or LabeledStatement. We
+ // simply start parsing an expression, and afterwards, if the
+ // next token is a colon and the expression was a simple
+ // Identifier node, we switch to interpreting it as a label.
+ default:
+ var maybeName = this.value,
+ expr = this.parseExpression();
+ if (starttype === _tokentype.types.name && expr.type === "Identifier" && this.eat(_tokentype.types.colon)) return this.parseLabeledStatement(node, maybeName, expr);else return this.parseExpressionStatement(node, expr);
+ }
+};
+
+pp.parseBreakContinueStatement = function (node, keyword) {
+ var isBreak = keyword == "break";
+ this.next();
+ if (this.eat(_tokentype.types.semi) || this.insertSemicolon()) node.label = null;else if (this.type !== _tokentype.types.name) this.unexpected();else {
+ node.label = this.parseIdent();
+ this.semicolon();
+ }
+
+ // Verify that there is an actual destination to break or
+ // continue to.
+ for (var i = 0; i < this.labels.length; ++i) {
+ var lab = this.labels[i];
+ if (node.label == null || lab.name === node.label.name) {
+ if (lab.kind != null && (isBreak || lab.kind === "loop")) break;
+ if (node.label && isBreak) break;
+ }
+ }
+ if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword);
+ return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement");
+};
+
+pp.parseDebuggerStatement = function (node) {
+ this.next();
+ this.semicolon();
+ return this.finishNode(node, "DebuggerStatement");
+};
+
+pp.parseDoStatement = function (node) {
+ this.next();
+ this.labels.push(loopLabel);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ this.expect(_tokentype.types._while);
+ node.test = this.parseParenExpression();
+ if (this.options.ecmaVersion >= 6) this.eat(_tokentype.types.semi);else this.semicolon();
+ return this.finishNode(node, "DoWhileStatement");
+};
+
+// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
+// loop is non-trivial. Basically, we have to parse the init `var`
+// statement or expression, disallowing the `in` operator (see
+// the second parameter to `parseExpression`), and then check
+// whether the next token is `in` or `of`. When there is no init
+// part (semicolon immediately after the opening parenthesis), it
+// is a regular `for` loop.
+
+pp.parseForStatement = function (node) {
+ this.next();
+ this.labels.push(loopLabel);
+ this.expect(_tokentype.types.parenL);
+ if (this.type === _tokentype.types.semi) return this.parseFor(node, null);
+ if (this.type === _tokentype.types._var || this.type === _tokentype.types._let || this.type === _tokentype.types._const) {
+ var _init = this.startNode(),
+ varKind = this.type;
+ this.next();
+ this.parseVar(_init, true, varKind);
+ this.finishNode(_init, "VariableDeclaration");
+ if ((this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) && _init.declarations.length === 1 && !(varKind !== _tokentype.types._var && _init.declarations[0].init)) return this.parseForIn(node, _init);
+ return this.parseFor(node, _init);
+ }
+ var refShorthandDefaultPos = { start: 0 };
+ var init = this.parseExpression(true, refShorthandDefaultPos);
+ if (this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) {
+ this.toAssignable(init);
+ this.checkLVal(init);
+ return this.parseForIn(node, init);
+ } else if (refShorthandDefaultPos.start) {
+ this.unexpected(refShorthandDefaultPos.start);
+ }
+ return this.parseFor(node, init);
+};
+
+pp.parseFunctionStatement = function (node) {
+ this.next();
+ return this.parseFunction(node, true);
+};
+
+pp.parseIfStatement = function (node) {
+ this.next();
+ node.test = this.parseParenExpression();
+ node.consequent = this.parseStatement(false);
+ node.alternate = this.eat(_tokentype.types._else) ? this.parseStatement(false) : null;
+ return this.finishNode(node, "IfStatement");
+};
+
+pp.parseReturnStatement = function (node) {
+ if (!this.inFunction && !this.options.allowReturnOutsideFunction) this.raise(this.start, "'return' outside of function");
+ this.next();
+
+ // In `return` (and `break`/`continue`), the keywords with
+ // optional arguments, we eagerly look for a semicolon or the
+ // possibility to insert one.
+
+ if (this.eat(_tokentype.types.semi) || this.insertSemicolon()) node.argument = null;else {
+ node.argument = this.parseExpression();this.semicolon();
+ }
+ return this.finishNode(node, "ReturnStatement");
+};
+
+pp.parseSwitchStatement = function (node) {
+ this.next();
+ node.discriminant = this.parseParenExpression();
+ node.cases = [];
+ this.expect(_tokentype.types.braceL);
+ this.labels.push(switchLabel);
+
+ // Statements under must be grouped (by label) in SwitchCase
+ // nodes. `cur` is used to keep the node that we are currently
+ // adding statements to.
+
+ for (var cur, sawDefault = false; this.type != _tokentype.types.braceR;) {
+ if (this.type === _tokentype.types._case || this.type === _tokentype.types._default) {
+ var isCase = this.type === _tokentype.types._case;
+ if (cur) this.finishNode(cur, "SwitchCase");
+ node.cases.push(cur = this.startNode());
+ cur.consequent = [];
+ this.next();
+ if (isCase) {
+ cur.test = this.parseExpression();
+ } else {
+ if (sawDefault) this.raise(this.lastTokStart, "Multiple default clauses");
+ sawDefault = true;
+ cur.test = null;
+ }
+ this.expect(_tokentype.types.colon);
+ } else {
+ if (!cur) this.unexpected();
+ cur.consequent.push(this.parseStatement(true));
+ }
+ }
+ if (cur) this.finishNode(cur, "SwitchCase");
+ this.next(); // Closing brace
+ this.labels.pop();
+ return this.finishNode(node, "SwitchStatement");
+};
+
+pp.parseThrowStatement = function (node) {
+ this.next();
+ if (_whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) this.raise(this.lastTokEnd, "Illegal newline after throw");
+ node.argument = this.parseExpression();
+ this.semicolon();
+ return this.finishNode(node, "ThrowStatement");
+};
+
+// Reused empty array added for node fields that are always empty.
+
+var empty = [];
+
+pp.parseTryStatement = function (node) {
+ this.next();
+ node.block = this.parseBlock();
+ node.handler = null;
+ if (this.type === _tokentype.types._catch) {
+ var clause = this.startNode();
+ this.next();
+ this.expect(_tokentype.types.parenL);
+ clause.param = this.parseBindingAtom();
+ this.checkLVal(clause.param, true);
+ this.expect(_tokentype.types.parenR);
+ clause.guard = null;
+ clause.body = this.parseBlock();
+ node.handler = this.finishNode(clause, "CatchClause");
+ }
+ node.guardedHandlers = empty;
+ node.finalizer = this.eat(_tokentype.types._finally) ? this.parseBlock() : null;
+ if (!node.handler && !node.finalizer) this.raise(node.start, "Missing catch or finally clause");
+ return this.finishNode(node, "TryStatement");
+};
+
+pp.parseVarStatement = function (node, kind) {
+ this.next();
+ this.parseVar(node, false, kind);
+ this.semicolon();
+ return this.finishNode(node, "VariableDeclaration");
+};
+
+pp.parseWhileStatement = function (node) {
+ this.next();
+ node.test = this.parseParenExpression();
+ this.labels.push(loopLabel);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ return this.finishNode(node, "WhileStatement");
+};
+
+pp.parseWithStatement = function (node) {
+ if (this.strict) this.raise(this.start, "'with' in strict mode");
+ this.next();
+ node.object = this.parseParenExpression();
+ node.body = this.parseStatement(false);
+ return this.finishNode(node, "WithStatement");
+};
+
+pp.parseEmptyStatement = function (node) {
+ this.next();
+ return this.finishNode(node, "EmptyStatement");
+};
+
+pp.parseLabeledStatement = function (node, maybeName, expr) {
+ for (var i = 0; i < this.labels.length; ++i) {
+ if (this.labels[i].name === maybeName) this.raise(expr.start, "Label '" + maybeName + "' is already declared");
+ }var kind = this.type.isLoop ? "loop" : this.type === _tokentype.types._switch ? "switch" : null;
+ for (var i = this.labels.length - 1; i >= 0; i--) {
+ var label = this.labels[i];
+ if (label.statementStart == node.start) {
+ label.statementStart = this.start;
+ label.kind = kind;
+ } else break;
+ }
+ this.labels.push({ name: maybeName, kind: kind, statementStart: this.start });
+ node.body = this.parseStatement(true);
+ this.labels.pop();
+ node.label = expr;
+ return this.finishNode(node, "LabeledStatement");
+};
+
+pp.parseExpressionStatement = function (node, expr) {
+ node.expression = expr;
+ this.semicolon();
+ return this.finishNode(node, "ExpressionStatement");
+};
+
+// Parse a semicolon-enclosed block of statements, handling `"use
+// strict"` declarations when `allowStrict` is true (used for
+// function bodies).
+
+pp.parseBlock = function (allowStrict) {
+ var node = this.startNode(),
+ first = true,
+ oldStrict = undefined;
+ node.body = [];
+ this.expect(_tokentype.types.braceL);
+ while (!this.eat(_tokentype.types.braceR)) {
+ var stmt = this.parseStatement(true);
+ node.body.push(stmt);
+ if (first && allowStrict && this.isUseStrict(stmt)) {
+ oldStrict = this.strict;
+ this.setStrict(this.strict = true);
+ }
+ first = false;
+ }
+ if (oldStrict === false) this.setStrict(false);
+ return this.finishNode(node, "BlockStatement");
+};
+
+// Parse a regular `for` loop. The disambiguation code in
+// `parseStatement` will already have parsed the init statement or
+// expression.
+
+pp.parseFor = function (node, init) {
+ node.init = init;
+ this.expect(_tokentype.types.semi);
+ node.test = this.type === _tokentype.types.semi ? null : this.parseExpression();
+ this.expect(_tokentype.types.semi);
+ node.update = this.type === _tokentype.types.parenR ? null : this.parseExpression();
+ this.expect(_tokentype.types.parenR);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ return this.finishNode(node, "ForStatement");
+};
+
+// Parse a `for`/`in` and `for`/`of` loop, which are almost
+// same from parser's perspective.
+
+pp.parseForIn = function (node, init) {
+ var type = this.type === _tokentype.types._in ? "ForInStatement" : "ForOfStatement";
+ this.next();
+ node.left = init;
+ node.right = this.parseExpression();
+ this.expect(_tokentype.types.parenR);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ return this.finishNode(node, type);
+};
+
+// Parse a list of variable declarations.
+
+pp.parseVar = function (node, isFor, kind) {
+ node.declarations = [];
+ node.kind = kind.keyword;
+ for (;;) {
+ var decl = this.startNode();
+ this.parseVarId(decl);
+ if (this.eat(_tokentype.types.eq)) {
+ decl.init = this.parseMaybeAssign(isFor);
+ } else if (kind === _tokentype.types._const && !(this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
+ this.unexpected();
+ } else if (decl.id.type != "Identifier" && !(isFor && (this.type === _tokentype.types._in || this.isContextual("of")))) {
+ this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
+ } else {
+ decl.init = null;
+ }
+ node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
+ if (!this.eat(_tokentype.types.comma)) break;
+ }
+ return node;
+};
+
+pp.parseVarId = function (decl) {
+ decl.id = this.parseBindingAtom();
+ this.checkLVal(decl.id, true);
+};
+
+// Parse a function declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp.parseFunction = function (node, isStatement, allowExpressionBody) {
+ this.initFunction(node);
+ if (this.options.ecmaVersion >= 6) node.generator = this.eat(_tokentype.types.star);
+ if (isStatement || this.type === _tokentype.types.name) node.id = this.parseIdent();
+ this.parseFunctionParams(node);
+ this.parseFunctionBody(node, allowExpressionBody);
+ return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression");
+};
+
+pp.parseFunctionParams = function (node) {
+ this.expect(_tokentype.types.parenL);
+ node.params = this.parseBindingList(_tokentype.types.parenR, false, false);
+};
+
+// Parse a class declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp.parseClass = function (node, isStatement) {
+ this.next();
+ this.parseClassId(node, isStatement);
+ this.parseClassSuper(node);
+ var classBody = this.startNode();
+ var hadConstructor = false;
+ classBody.body = [];
+ this.expect(_tokentype.types.braceL);
+ while (!this.eat(_tokentype.types.braceR)) {
+ if (this.eat(_tokentype.types.semi)) continue;
+ var method = this.startNode();
+ var isGenerator = this.eat(_tokentype.types.star);
+ var isMaybeStatic = this.type === _tokentype.types.name && this.value === "static";
+ this.parsePropertyName(method);
+ method["static"] = isMaybeStatic && this.type !== _tokentype.types.parenL;
+ if (method["static"]) {
+ if (isGenerator) this.unexpected();
+ isGenerator = this.eat(_tokentype.types.star);
+ this.parsePropertyName(method);
+ }
+ method.kind = "method";
+ var isGetSet = false;
+ if (!method.computed) {
+ var key = method.key;
+
+ if (!isGenerator && key.type === "Identifier" && this.type !== _tokentype.types.parenL && (key.name === "get" || key.name === "set")) {
+ isGetSet = true;
+ method.kind = key.name;
+ key = this.parsePropertyName(method);
+ }
+ if (!method["static"] && (key.type === "Identifier" && key.name === "constructor" || key.type === "Literal" && key.value === "constructor")) {
+ if (hadConstructor) this.raise(key.start, "Duplicate constructor in the same class");
+ if (isGetSet) this.raise(key.start, "Constructor can't have get/set modifier");
+ if (isGenerator) this.raise(key.start, "Constructor can't be a generator");
+ method.kind = "constructor";
+ hadConstructor = true;
+ }
+ }
+ this.parseClassMethod(classBody, method, isGenerator);
+ if (isGetSet) {
+ var paramCount = method.kind === "get" ? 0 : 1;
+ if (method.value.params.length !== paramCount) {
+ var start = method.value.start;
+ if (method.kind === "get") this.raise(start, "getter should have no params");else this.raise(start, "setter should have exactly one param");
+ }
+ }
+ }
+ node.body = this.finishNode(classBody, "ClassBody");
+ return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression");
+};
+
+pp.parseClassMethod = function (classBody, method, isGenerator) {
+ method.value = this.parseMethod(isGenerator);
+ classBody.body.push(this.finishNode(method, "MethodDefinition"));
+};
+
+pp.parseClassId = function (node, isStatement) {
+ node.id = this.type === _tokentype.types.name ? this.parseIdent() : isStatement ? this.unexpected() : null;
+};
+
+pp.parseClassSuper = function (node) {
+ node.superClass = this.eat(_tokentype.types._extends) ? this.parseExprSubscripts() : null;
+};
+
+// Parses module export declaration.
+
+pp.parseExport = function (node) {
+ this.next();
+ // export * from '...'
+ if (this.eat(_tokentype.types.star)) {
+ this.expectContextual("from");
+ node.source = this.type === _tokentype.types.string ? this.parseExprAtom() : this.unexpected();
+ this.semicolon();
+ return this.finishNode(node, "ExportAllDeclaration");
+ }
+ if (this.eat(_tokentype.types._default)) {
+ // export default ...
+ var expr = this.parseMaybeAssign();
+ var needsSemi = true;
+ if (expr.type == "FunctionExpression" || expr.type == "ClassExpression") {
+ needsSemi = false;
+ if (expr.id) {
+ expr.type = expr.type == "FunctionExpression" ? "FunctionDeclaration" : "ClassDeclaration";
+ }
+ }
+ node.declaration = expr;
+ if (needsSemi) this.semicolon();
+ return this.finishNode(node, "ExportDefaultDeclaration");
+ }
+ // export var|const|let|function|class ...
+ if (this.shouldParseExportStatement()) {
+ node.declaration = this.parseStatement(true);
+ node.specifiers = [];
+ node.source = null;
+ } else {
+ // export { x, y as z } [from '...']
+ node.declaration = null;
+ node.specifiers = this.parseExportSpecifiers();
+ if (this.eatContextual("from")) {
+ node.source = this.type === _tokentype.types.string ? this.parseExprAtom() : this.unexpected();
+ } else {
+ node.source = null;
+ }
+ this.semicolon();
+ }
+ return this.finishNode(node, "ExportNamedDeclaration");
+};
+
+pp.shouldParseExportStatement = function () {
+ return this.type.keyword;
+};
+
+// Parses a comma-separated list of module exports.
+
+pp.parseExportSpecifiers = function () {
+ var nodes = [],
+ first = true;
+ // export { x, y as z } [from '...']
+ this.expect(_tokentype.types.braceL);
+ while (!this.eat(_tokentype.types.braceR)) {
+ if (!first) {
+ this.expect(_tokentype.types.comma);
+ if (this.afterTrailingComma(_tokentype.types.braceR)) break;
+ } else first = false;
+
+ var node = this.startNode();
+ node.local = this.parseIdent(this.type === _tokentype.types._default);
+ node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local;
+ nodes.push(this.finishNode(node, "ExportSpecifier"));
+ }
+ return nodes;
+};
+
+// Parses import declaration.
+
+pp.parseImport = function (node) {
+ this.next();
+ // import '...'
+ if (this.type === _tokentype.types.string) {
+ node.specifiers = empty;
+ node.source = this.parseExprAtom();
+ } else {
+ node.specifiers = this.parseImportSpecifiers();
+ this.expectContextual("from");
+ node.source = this.type === _tokentype.types.string ? this.parseExprAtom() : this.unexpected();
+ }
+ this.semicolon();
+ return this.finishNode(node, "ImportDeclaration");
+};
+
+// Parses a comma-separated list of module imports.
+
+pp.parseImportSpecifiers = function () {
+ var nodes = [],
+ first = true;
+ if (this.type === _tokentype.types.name) {
+ // import defaultObj, { x, y as z } from '...'
+ var node = this.startNode();
+ node.local = this.parseIdent();
+ this.checkLVal(node.local, true);
+ nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
+ if (!this.eat(_tokentype.types.comma)) return nodes;
+ }
+ if (this.type === _tokentype.types.star) {
+ var node = this.startNode();
+ this.next();
+ this.expectContextual("as");
+ node.local = this.parseIdent();
+ this.checkLVal(node.local, true);
+ nodes.push(this.finishNode(node, "ImportNamespaceSpecifier"));
+ return nodes;
+ }
+ this.expect(_tokentype.types.braceL);
+ while (!this.eat(_tokentype.types.braceR)) {
+ if (!first) {
+ this.expect(_tokentype.types.comma);
+ if (this.afterTrailingComma(_tokentype.types.braceR)) break;
+ } else first = false;
+
+ var node = this.startNode();
+ node.imported = this.parseIdent(true);
+ node.local = this.eatContextual("as") ? this.parseIdent() : node.imported;
+ this.checkLVal(node.local, true);
+ nodes.push(this.finishNode(node, "ImportSpecifier"));
+ }
+ return nodes;
+};
+
+},{"./state":10,"./tokentype":14,"./whitespace":16}],12:[function(_dereq_,module,exports){
+// The algorithm used to determine whether a regexp can appear at a
+// given point in the program is loosely based on sweet.js' approach.
+// See https://github.com/mozilla/sweet.js/wiki/design
+
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _state = _dereq_("./state");
+
+var _tokentype = _dereq_("./tokentype");
+
+var _whitespace = _dereq_("./whitespace");
+
+var TokContext = function TokContext(token, isExpr, preserveSpace, override) {
+ _classCallCheck(this, TokContext);
+
+ this.token = token;
+ this.isExpr = !!isExpr;
+ this.preserveSpace = !!preserveSpace;
+ this.override = override;
+};
+
+exports.TokContext = TokContext;
+var types = {
+ b_stat: new TokContext("{", false),
+ b_expr: new TokContext("{", true),
+ b_tmpl: new TokContext("${", true),
+ p_stat: new TokContext("(", false),
+ p_expr: new TokContext("(", true),
+ q_tmpl: new TokContext("`", true, true, function (p) {
+ return p.readTmplToken();
+ }),
+ f_expr: new TokContext("function", true)
+};
+
+exports.types = types;
+var pp = _state.Parser.prototype;
+
+pp.initialContext = function () {
+ return [types.b_stat];
+};
+
+pp.braceIsBlock = function (prevType) {
+ if (prevType === _tokentype.types.colon) {
+ var _parent = this.curContext();
+ if (_parent === types.b_stat || _parent === types.b_expr) return !_parent.isExpr;
+ }
+ if (prevType === _tokentype.types._return) return _whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.start));
+ if (prevType === _tokentype.types._else || prevType === _tokentype.types.semi || prevType === _tokentype.types.eof || prevType === _tokentype.types.parenR) return true;
+ if (prevType == _tokentype.types.braceL) return this.curContext() === types.b_stat;
+ return !this.exprAllowed;
+};
+
+pp.updateContext = function (prevType) {
+ var update = undefined,
+ type = this.type;
+ if (type.keyword && prevType == _tokentype.types.dot) this.exprAllowed = false;else if (update = type.updateContext) update.call(this, prevType);else this.exprAllowed = type.beforeExpr;
+};
+
+// Token-specific context update code
+
+_tokentype.types.parenR.updateContext = _tokentype.types.braceR.updateContext = function () {
+ if (this.context.length == 1) {
+ this.exprAllowed = true;
+ return;
+ }
+ var out = this.context.pop();
+ if (out === types.b_stat && this.curContext() === types.f_expr) {
+ this.context.pop();
+ this.exprAllowed = false;
+ } else if (out === types.b_tmpl) {
+ this.exprAllowed = true;
+ } else {
+ this.exprAllowed = !out.isExpr;
+ }
+};
+
+_tokentype.types.braceL.updateContext = function (prevType) {
+ this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr);
+ this.exprAllowed = true;
+};
+
+_tokentype.types.dollarBraceL.updateContext = function () {
+ this.context.push(types.b_tmpl);
+ this.exprAllowed = true;
+};
+
+_tokentype.types.parenL.updateContext = function (prevType) {
+ var statementParens = prevType === _tokentype.types._if || prevType === _tokentype.types._for || prevType === _tokentype.types._with || prevType === _tokentype.types._while;
+ this.context.push(statementParens ? types.p_stat : types.p_expr);
+ this.exprAllowed = true;
+};
+
+_tokentype.types.incDec.updateContext = function () {};
+
+_tokentype.types._function.updateContext = function () {
+ if (this.curContext() !== types.b_stat) this.context.push(types.f_expr);
+ this.exprAllowed = false;
+};
+
+_tokentype.types.backQuote.updateContext = function () {
+ if (this.curContext() === types.q_tmpl) this.context.pop();else this.context.push(types.q_tmpl);
+ this.exprAllowed = false;
+};
+
+// tokExprAllowed stays unchanged
+
+},{"./state":10,"./tokentype":14,"./whitespace":16}],13:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _identifier = _dereq_("./identifier");
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _locutil = _dereq_("./locutil");
+
+var _whitespace = _dereq_("./whitespace");
+
+// Object type used to represent tokens. Note that normally, tokens
+// simply exist as properties on the parser object. This is only
+// used for the onToken callback and the external tokenizer.
+
+var Token = function Token(p) {
+ _classCallCheck(this, Token);
+
+ this.type = p.type;
+ this.value = p.value;
+ this.start = p.start;
+ this.end = p.end;
+ if (p.options.locations) this.loc = new _locutil.SourceLocation(p, p.startLoc, p.endLoc);
+ if (p.options.ranges) this.range = [p.start, p.end];
+};
+
+exports.Token = Token;
+
+// ## Tokenizer
+
+var pp = _state.Parser.prototype;
+
+// Are we running under Rhino?
+var isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]";
+
+// Move to the next token
+
+pp.next = function () {
+ if (this.options.onToken) this.options.onToken(new Token(this));
+
+ this.lastTokEnd = this.end;
+ this.lastTokStart = this.start;
+ this.lastTokEndLoc = this.endLoc;
+ this.lastTokStartLoc = this.startLoc;
+ this.nextToken();
+};
+
+pp.getToken = function () {
+ this.next();
+ return new Token(this);
+};
+
+// If we're in an ES6 environment, make parsers iterable
+if (typeof Symbol !== "undefined") pp[Symbol.iterator] = function () {
+ var self = this;
+ return { next: function next() {
+ var token = self.getToken();
+ return {
+ done: token.type === _tokentype.types.eof,
+ value: token
+ };
+ } };
+};
+
+// Toggle strict mode. Re-reads the next number or string to please
+// pedantic tests (`"use strict"; 010;` should fail).
+
+pp.setStrict = function (strict) {
+ this.strict = strict;
+ if (this.type !== _tokentype.types.num && this.type !== _tokentype.types.string) return;
+ this.pos = this.start;
+ if (this.options.locations) {
+ while (this.pos < this.lineStart) {
+ this.lineStart = this.input.lastIndexOf("\n", this.lineStart - 2) + 1;
+ --this.curLine;
+ }
+ }
+ this.nextToken();
+};
+
+pp.curContext = function () {
+ return this.context[this.context.length - 1];
+};
+
+// Read a single token, updating the parser object's token-related
+// properties.
+
+pp.nextToken = function () {
+ var curContext = this.curContext();
+ if (!curContext || !curContext.preserveSpace) this.skipSpace();
+
+ this.start = this.pos;
+ if (this.options.locations) this.startLoc = this.curPosition();
+ if (this.pos >= this.input.length) return this.finishToken(_tokentype.types.eof);
+
+ if (curContext.override) return curContext.override(this);else this.readToken(this.fullCharCodeAtPos());
+};
+
+pp.readToken = function (code) {
+ // Identifier or keyword. '\uXXXX' sequences are allowed in
+ // identifiers, so '\' also dispatches to that.
+ if (_identifier.isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */) return this.readWord();
+
+ return this.getTokenFromCode(code);
+};
+
+pp.fullCharCodeAtPos = function () {
+ var code = this.input.charCodeAt(this.pos);
+ if (code <= 0xd7ff || code >= 0xe000) return code;
+ var next = this.input.charCodeAt(this.pos + 1);
+ return (code << 10) + next - 0x35fdc00;
+};
+
+pp.skipBlockComment = function () {
+ var startLoc = this.options.onComment && this.curPosition();
+ var start = this.pos,
+ end = this.input.indexOf("*/", this.pos += 2);
+ if (end === -1) this.raise(this.pos - 2, "Unterminated comment");
+ this.pos = end + 2;
+ if (this.options.locations) {
+ _whitespace.lineBreakG.lastIndex = start;
+ var match = undefined;
+ while ((match = _whitespace.lineBreakG.exec(this.input)) && match.index < this.pos) {
+ ++this.curLine;
+ this.lineStart = match.index + match[0].length;
+ }
+ }
+ if (this.options.onComment) this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos, startLoc, this.curPosition());
+};
+
+pp.skipLineComment = function (startSkip) {
+ var start = this.pos;
+ var startLoc = this.options.onComment && this.curPosition();
+ var ch = this.input.charCodeAt(this.pos += startSkip);
+ while (this.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {
+ ++this.pos;
+ ch = this.input.charCodeAt(this.pos);
+ }
+ if (this.options.onComment) this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos, startLoc, this.curPosition());
+};
+
+// Called at the start of the parse and after every token. Skips
+// whitespace and comments, and.
+
+pp.skipSpace = function () {
+ loop: while (this.pos < this.input.length) {
+ var ch = this.input.charCodeAt(this.pos);
+ switch (ch) {
+ case 32:case 160:
+ // ' '
+ ++this.pos;
+ break;
+ case 13:
+ if (this.input.charCodeAt(this.pos + 1) === 10) {
+ ++this.pos;
+ }
+ case 10:case 8232:case 8233:
+ ++this.pos;
+ if (this.options.locations) {
+ ++this.curLine;
+ this.lineStart = this.pos;
+ }
+ break;
+ case 47:
+ // '/'
+ switch (this.input.charCodeAt(this.pos + 1)) {
+ case 42:
+ // '*'
+ this.skipBlockComment();
+ break;
+ case 47:
+ this.skipLineComment(2);
+ break;
+ default:
+ break loop;
+ }
+ break;
+ default:
+ if (ch > 8 && ch < 14 || ch >= 5760 && _whitespace.nonASCIIwhitespace.test(String.fromCharCode(ch))) {
+ ++this.pos;
+ } else {
+ break loop;
+ }
+ }
+ }
+};
+
+// Called at the end of every token. Sets `end`, `val`, and
+// maintains `context` and `exprAllowed`, and skips the space after
+// the token, so that the next one's `start` will point at the
+// right position.
+
+pp.finishToken = function (type, val) {
+ this.end = this.pos;
+ if (this.options.locations) this.endLoc = this.curPosition();
+ var prevType = this.type;
+ this.type = type;
+ this.value = val;
+
+ this.updateContext(prevType);
+};
+
+// ### Token reading
+
+// This is the function that is called to fetch the next token. It
+// is somewhat obscure, because it works in character codes rather
+// than characters, and because operator parsing has been inlined
+// into it.
+//
+// All in the name of speed.
+//
+pp.readToken_dot = function () {
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next >= 48 && next <= 57) return this.readNumber(true);
+ var next2 = this.input.charCodeAt(this.pos + 2);
+ if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) {
+ // 46 = dot '.'
+ this.pos += 3;
+ return this.finishToken(_tokentype.types.ellipsis);
+ } else {
+ ++this.pos;
+ return this.finishToken(_tokentype.types.dot);
+ }
+};
+
+pp.readToken_slash = function () {
+ // '/'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (this.exprAllowed) {
+ ++this.pos;return this.readRegexp();
+ }
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(_tokentype.types.slash, 1);
+};
+
+pp.readToken_mult_modulo = function (code) {
+ // '%*'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(code === 42 ? _tokentype.types.star : _tokentype.types.modulo, 1);
+};
+
+pp.readToken_pipe_amp = function (code) {
+ // '|&'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === code) return this.finishOp(code === 124 ? _tokentype.types.logicalOR : _tokentype.types.logicalAND, 2);
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(code === 124 ? _tokentype.types.bitwiseOR : _tokentype.types.bitwiseAND, 1);
+};
+
+pp.readToken_caret = function () {
+ // '^'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(_tokentype.types.bitwiseXOR, 1);
+};
+
+pp.readToken_plus_min = function (code) {
+ // '+-'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === code) {
+ if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 && _whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) {
+ // A `-->` line comment
+ this.skipLineComment(3);
+ this.skipSpace();
+ return this.nextToken();
+ }
+ return this.finishOp(_tokentype.types.incDec, 2);
+ }
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(_tokentype.types.plusMin, 1);
+};
+
+pp.readToken_lt_gt = function (code) {
+ // '<>'
+ var next = this.input.charCodeAt(this.pos + 1);
+ var size = 1;
+ if (next === code) {
+ size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
+ if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(_tokentype.types.assign, size + 1);
+ return this.finishOp(_tokentype.types.bitShift, size);
+ }
+ if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 && this.input.charCodeAt(this.pos + 3) == 45) {
+ if (this.inModule) this.unexpected();
+ // `<!--`, an XML-style comment that should be interpreted as a line comment
+ this.skipLineComment(4);
+ this.skipSpace();
+ return this.nextToken();
+ }
+ if (next === 61) size = this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2;
+ return this.finishOp(_tokentype.types.relational, size);
+};
+
+pp.readToken_eq_excl = function (code) {
+ // '=!'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 61) return this.finishOp(_tokentype.types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2);
+ if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) {
+ // '=>'
+ this.pos += 2;
+ return this.finishToken(_tokentype.types.arrow);
+ }
+ return this.finishOp(code === 61 ? _tokentype.types.eq : _tokentype.types.prefix, 1);
+};
+
+pp.getTokenFromCode = function (code) {
+ switch (code) {
+ // The interpretation of a dot depends on whether it is followed
+ // by a digit or another two dots.
+ case 46:
+ // '.'
+ return this.readToken_dot();
+
+ // Punctuation tokens.
+ case 40:
+ ++this.pos;return this.finishToken(_tokentype.types.parenL);
+ case 41:
+ ++this.pos;return this.finishToken(_tokentype.types.parenR);
+ case 59:
+ ++this.pos;return this.finishToken(_tokentype.types.semi);
+ case 44:
+ ++this.pos;return this.finishToken(_tokentype.types.comma);
+ case 91:
+ ++this.pos;return this.finishToken(_tokentype.types.bracketL);
+ case 93:
+ ++this.pos;return this.finishToken(_tokentype.types.bracketR);
+ case 123:
+ ++this.pos;return this.finishToken(_tokentype.types.braceL);
+ case 125:
+ ++this.pos;return this.finishToken(_tokentype.types.braceR);
+ case 58:
+ ++this.pos;return this.finishToken(_tokentype.types.colon);
+ case 63:
+ ++this.pos;return this.finishToken(_tokentype.types.question);
+
+ case 96:
+ // '`'
+ if (this.options.ecmaVersion < 6) break;
+ ++this.pos;
+ return this.finishToken(_tokentype.types.backQuote);
+
+ case 48:
+ // '0'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 120 || next === 88) return this.readRadixNumber(16); // '0x', '0X' - hex number
+ if (this.options.ecmaVersion >= 6) {
+ if (next === 111 || next === 79) return this.readRadixNumber(8); // '0o', '0O' - octal number
+ if (next === 98 || next === 66) return this.readRadixNumber(2); // '0b', '0B' - binary number
+ }
+ // Anything else beginning with a digit is an integer, octal
+ // number, or float.
+ case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57:
+ // 1-9
+ return this.readNumber(false);
+
+ // Quotes produce strings.
+ case 34:case 39:
+ // '"', "'"
+ return this.readString(code);
+
+ // Operators are parsed inline in tiny state machines. '=' (61) is
+ // often referred to. `finishOp` simply skips the amount of
+ // characters it is given as second argument, and returns a token
+ // of the type given by its first argument.
+
+ case 47:
+ // '/'
+ return this.readToken_slash();
+
+ case 37:case 42:
+ // '%*'
+ return this.readToken_mult_modulo(code);
+
+ case 124:case 38:
+ // '|&'
+ return this.readToken_pipe_amp(code);
+
+ case 94:
+ // '^'
+ return this.readToken_caret();
+
+ case 43:case 45:
+ // '+-'
+ return this.readToken_plus_min(code);
+
+ case 60:case 62:
+ // '<>'
+ return this.readToken_lt_gt(code);
+
+ case 61:case 33:
+ // '=!'
+ return this.readToken_eq_excl(code);
+
+ case 126:
+ // '~'
+ return this.finishOp(_tokentype.types.prefix, 1);
+ }
+
+ this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
+};
+
+pp.finishOp = function (type, size) {
+ var str = this.input.slice(this.pos, this.pos + size);
+ this.pos += size;
+ return this.finishToken(type, str);
+};
+
+// Parse a regular expression. Some context-awareness is necessary,
+// since a '/' inside a '[]' set does not end the expression.
+
+function tryCreateRegexp(src, flags, throwErrorAt) {
+ try {
+ return new RegExp(src, flags);
+ } catch (e) {
+ if (throwErrorAt !== undefined) {
+ if (e instanceof SyntaxError) this.raise(throwErrorAt, "Error parsing regular expression: " + e.message);
+ this.raise(e);
+ }
+ }
+}
+
+var regexpUnicodeSupport = !!tryCreateRegexp("", "u");
+
+pp.readRegexp = function () {
+ var _this = this;
+
+ var escaped = undefined,
+ inClass = undefined,
+ start = this.pos;
+ for (;;) {
+ if (this.pos >= this.input.length) this.raise(start, "Unterminated regular expression");
+ var ch = this.input.charAt(this.pos);
+ if (_whitespace.lineBreak.test(ch)) this.raise(start, "Unterminated regular expression");
+ if (!escaped) {
+ if (ch === "[") inClass = true;else if (ch === "]" && inClass) inClass = false;else if (ch === "/" && !inClass) break;
+ escaped = ch === "\\";
+ } else escaped = false;
+ ++this.pos;
+ }
+ var content = this.input.slice(start, this.pos);
+ ++this.pos;
+ // Need to use `readWord1` because '\uXXXX' sequences are allowed
+ // here (don't ask).
+ var mods = this.readWord1();
+ var tmp = content;
+ if (mods) {
+ var validFlags = /^[gmsiy]*$/;
+ if (this.options.ecmaVersion >= 6) validFlags = /^[gmsiyu]*$/;
+ if (!validFlags.test(mods)) this.raise(start, "Invalid regular expression flag");
+ if (mods.indexOf("u") >= 0 && !regexpUnicodeSupport) {
+ // Replace each astral symbol and every Unicode escape sequence that
+ // possibly represents an astral symbol or a paired surrogate with a
+ // single ASCII symbol to avoid throwing on regular expressions that
+ // are only valid in combination with the `/u` flag.
+ // Note: replacing with the ASCII symbol `x` might cause false
+ // negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
+ // perfectly valid pattern that is equivalent to `[a-b]`, but it would
+ // be replaced by `[x-b]` which throws an error.
+ tmp = tmp.replace(/\\u\{([0-9a-fA-F]+)\}/g, function (match, code, offset) {
+ code = Number("0x" + code);
+ if (code > 0x10FFFF) _this.raise(start + offset + 3, "Code point out of bounds");
+ return "x";
+ });
+ tmp = tmp.replace(/\\u([a-fA-F0-9]{4})|[\uD800-\uDBFF][\uDC00-\uDFFF]/g, "x");
+ }
+ }
+ // Detect invalid regular expressions.
+ var value = null;
+ // Rhino's regular expression parser is flaky and throws uncatchable exceptions,
+ // so don't do detection if we are running under Rhino
+ if (!isRhino) {
+ tryCreateRegexp(tmp, undefined, start);
+ // Get a regular expression object for this pattern-flag pair, or `null` in
+ // case the current environment doesn't support the flags it uses.
+ value = tryCreateRegexp(content, mods);
+ }
+ return this.finishToken(_tokentype.types.regexp, { pattern: content, flags: mods, value: value });
+};
+
+// Read an integer in the given radix. Return null if zero digits
+// were read, the integer value otherwise. When `len` is given, this
+// will return `null` unless the integer has exactly `len` digits.
+
+pp.readInt = function (radix, len) {
+ var start = this.pos,
+ total = 0;
+ for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
+ var code = this.input.charCodeAt(this.pos),
+ val = undefined;
+ if (code >= 97) val = code - 97 + 10; // a
+ else if (code >= 65) val = code - 65 + 10; // A
+ else if (code >= 48 && code <= 57) val = code - 48; // 0-9
+ else val = Infinity;
+ if (val >= radix) break;
+ ++this.pos;
+ total = total * radix + val;
+ }
+ if (this.pos === start || len != null && this.pos - start !== len) return null;
+
+ return total;
+};
+
+pp.readRadixNumber = function (radix) {
+ this.pos += 2; // 0x
+ var val = this.readInt(radix);
+ if (val == null) this.raise(this.start + 2, "Expected number in radix " + radix);
+ if (_identifier.isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number");
+ return this.finishToken(_tokentype.types.num, val);
+};
+
+// Read an integer, octal integer, or floating-point number.
+
+pp.readNumber = function (startsWithDot) {
+ var start = this.pos,
+ isFloat = false,
+ octal = this.input.charCodeAt(this.pos) === 48;
+ if (!startsWithDot && this.readInt(10) === null) this.raise(start, "Invalid number");
+ var next = this.input.charCodeAt(this.pos);
+ if (next === 46) {
+ // '.'
+ ++this.pos;
+ this.readInt(10);
+ isFloat = true;
+ next = this.input.charCodeAt(this.pos);
+ }
+ if (next === 69 || next === 101) {
+ // 'eE'
+ next = this.input.charCodeAt(++this.pos);
+ if (next === 43 || next === 45) ++this.pos; // '+-'
+ if (this.readInt(10) === null) this.raise(start, "Invalid number");
+ isFloat = true;
+ }
+ if (_identifier.isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number");
+
+ var str = this.input.slice(start, this.pos),
+ val = undefined;
+ if (isFloat) val = parseFloat(str);else if (!octal || str.length === 1) val = parseInt(str, 10);else if (/[89]/.test(str) || this.strict) this.raise(start, "Invalid number");else val = parseInt(str, 8);
+ return this.finishToken(_tokentype.types.num, val);
+};
+
+// Read a string value, interpreting backslash-escapes.
+
+pp.readCodePoint = function () {
+ var ch = this.input.charCodeAt(this.pos),
+ code = undefined;
+
+ if (ch === 123) {
+ if (this.options.ecmaVersion < 6) this.unexpected();
+ var codePos = ++this.pos;
+ code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
+ ++this.pos;
+ if (code > 0x10FFFF) this.raise(codePos, "Code point out of bounds");
+ } else {
+ code = this.readHexChar(4);
+ }
+ return code;
+};
+
+function codePointToString(code) {
+ // UTF-16 Decoding
+ if (code <= 0xFFFF) return String.fromCharCode(code);
+ code -= 0x10000;
+ return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00);
+}
+
+pp.readString = function (quote) {
+ var out = "",
+ chunkStart = ++this.pos;
+ for (;;) {
+ if (this.pos >= this.input.length) this.raise(this.start, "Unterminated string constant");
+ var ch = this.input.charCodeAt(this.pos);
+ if (ch === quote) break;
+ if (ch === 92) {
+ // '\'
+ out += this.input.slice(chunkStart, this.pos);
+ out += this.readEscapedChar(false);
+ chunkStart = this.pos;
+ } else {
+ if (_whitespace.isNewLine(ch)) this.raise(this.start, "Unterminated string constant");
+ ++this.pos;
+ }
+ }
+ out += this.input.slice(chunkStart, this.pos++);
+ return this.finishToken(_tokentype.types.string, out);
+};
+
+// Reads template string tokens.
+
+pp.readTmplToken = function () {
+ var out = "",
+ chunkStart = this.pos;
+ for (;;) {
+ if (this.pos >= this.input.length) this.raise(this.start, "Unterminated template");
+ var ch = this.input.charCodeAt(this.pos);
+ if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) {
+ // '`', '${'
+ if (this.pos === this.start && this.type === _tokentype.types.template) {
+ if (ch === 36) {
+ this.pos += 2;
+ return this.finishToken(_tokentype.types.dollarBraceL);
+ } else {
+ ++this.pos;
+ return this.finishToken(_tokentype.types.backQuote);
+ }
+ }
+ out += this.input.slice(chunkStart, this.pos);
+ return this.finishToken(_tokentype.types.template, out);
+ }
+ if (ch === 92) {
+ // '\'
+ out += this.input.slice(chunkStart, this.pos);
+ out += this.readEscapedChar(true);
+ chunkStart = this.pos;
+ } else if (_whitespace.isNewLine(ch)) {
+ out += this.input.slice(chunkStart, this.pos);
+ ++this.pos;
+ switch (ch) {
+ case 13:
+ if (this.input.charCodeAt(this.pos) === 10) ++this.pos;
+ case 10:
+ out += "\n";
+ break;
+ default:
+ out += String.fromCharCode(ch);
+ break;
+ }
+ if (this.options.locations) {
+ ++this.curLine;
+ this.lineStart = this.pos;
+ }
+ chunkStart = this.pos;
+ } else {
+ ++this.pos;
+ }
+ }
+};
+
+// Used to read escaped characters
+
+pp.readEscapedChar = function (inTemplate) {
+ var ch = this.input.charCodeAt(++this.pos);
+ ++this.pos;
+ switch (ch) {
+ case 110:
+ return "\n"; // 'n' -> '\n'
+ case 114:
+ return "\r"; // 'r' -> '\r'
+ case 120:
+ return String.fromCharCode(this.readHexChar(2)); // 'x'
+ case 117:
+ return codePointToString(this.readCodePoint()); // 'u'
+ case 116:
+ return "\t"; // 't' -> '\t'
+ case 98:
+ return "\b"; // 'b' -> '\b'
+ case 118:
+ return "\u000b"; // 'v' -> '\u000b'
+ case 102:
+ return "\f"; // 'f' -> '\f'
+ case 13:
+ if (this.input.charCodeAt(this.pos) === 10) ++this.pos; // '\r\n'
+ case 10:
+ // ' \n'
+ if (this.options.locations) {
+ this.lineStart = this.pos;++this.curLine;
+ }
+ return "";
+ default:
+ if (ch >= 48 && ch <= 55) {
+ var octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0];
+ var octal = parseInt(octalStr, 8);
+ if (octal > 255) {
+ octalStr = octalStr.slice(0, -1);
+ octal = parseInt(octalStr, 8);
+ }
+ if (octal > 0 && (this.strict || inTemplate)) {
+ this.raise(this.pos - 2, "Octal literal in strict mode");
+ }
+ this.pos += octalStr.length - 1;
+ return String.fromCharCode(octal);
+ }
+ return String.fromCharCode(ch);
+ }
+};
+
+// Used to read character escape sequences ('\x', '\u', '\U').
+
+pp.readHexChar = function (len) {
+ var codePos = this.pos;
+ var n = this.readInt(16, len);
+ if (n === null) this.raise(codePos, "Bad character escape sequence");
+ return n;
+};
+
+// Read an identifier, and return it as a string. Sets `this.containsEsc`
+// to whether the word contained a '\u' escape.
+//
+// Incrementally adds only escaped chars, adding other chunks as-is
+// as a micro-optimization.
+
+pp.readWord1 = function () {
+ this.containsEsc = false;
+ var word = "",
+ first = true,
+ chunkStart = this.pos;
+ var astral = this.options.ecmaVersion >= 6;
+ while (this.pos < this.input.length) {
+ var ch = this.fullCharCodeAtPos();
+ if (_identifier.isIdentifierChar(ch, astral)) {
+ this.pos += ch <= 0xffff ? 1 : 2;
+ } else if (ch === 92) {
+ // "\"
+ this.containsEsc = true;
+ word += this.input.slice(chunkStart, this.pos);
+ var escStart = this.pos;
+ if (this.input.charCodeAt(++this.pos) != 117) // "u"
+ this.raise(this.pos, "Expecting Unicode escape sequence \\uXXXX");
+ ++this.pos;
+ var esc = this.readCodePoint();
+ if (!(first ? _identifier.isIdentifierStart : _identifier.isIdentifierChar)(esc, astral)) this.raise(escStart, "Invalid Unicode escape");
+ word += codePointToString(esc);
+ chunkStart = this.pos;
+ } else {
+ break;
+ }
+ first = false;
+ }
+ return word + this.input.slice(chunkStart, this.pos);
+};
+
+// Read an identifier or keyword token. Will check for reserved
+// words when necessary.
+
+pp.readWord = function () {
+ var word = this.readWord1();
+ var type = _tokentype.types.name;
+ if ((this.options.ecmaVersion >= 6 || !this.containsEsc) && this.isKeyword(word)) type = _tokentype.keywords[word];
+ return this.finishToken(type, word);
+};
+
+},{"./identifier":2,"./locutil":5,"./state":10,"./tokentype":14,"./whitespace":16}],14:[function(_dereq_,module,exports){
+// ## Token types
+
+// The assignment of fine-grained, information-carrying type objects
+// allows the tokenizer to store the information it has about a
+// token in a way that is very cheap for the parser to look up.
+
+// All token type variables start with an underscore, to make them
+// easy to recognize.
+
+// The `beforeExpr` property is used to disambiguate between regular
+// expressions and divisions. It is set on all token types that can
+// be followed by an expression (thus, a slash after them would be a
+// regular expression).
+//
+// `isLoop` marks a keyword as starting a loop, which is important
+// to know when parsing a label, in order to allow or disallow
+// continue jumps to that label.
+
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var TokenType = function TokenType(label) {
+ var conf = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
+
+ _classCallCheck(this, TokenType);
+
+ this.label = label;
+ this.keyword = conf.keyword;
+ this.beforeExpr = !!conf.beforeExpr;
+ this.startsExpr = !!conf.startsExpr;
+ this.isLoop = !!conf.isLoop;
+ this.isAssign = !!conf.isAssign;
+ this.prefix = !!conf.prefix;
+ this.postfix = !!conf.postfix;
+ this.binop = conf.binop || null;
+ this.updateContext = null;
+};
+
+exports.TokenType = TokenType;
+
+function binop(name, prec) {
+ return new TokenType(name, { beforeExpr: true, binop: prec });
+}
+var beforeExpr = { beforeExpr: true },
+ startsExpr = { startsExpr: true };
+
+var types = {
+ num: new TokenType("num", startsExpr),
+ regexp: new TokenType("regexp", startsExpr),
+ string: new TokenType("string", startsExpr),
+ name: new TokenType("name", startsExpr),
+ eof: new TokenType("eof"),
+
+ // Punctuation token types.
+ bracketL: new TokenType("[", { beforeExpr: true, startsExpr: true }),
+ bracketR: new TokenType("]"),
+ braceL: new TokenType("{", { beforeExpr: true, startsExpr: true }),
+ braceR: new TokenType("}"),
+ parenL: new TokenType("(", { beforeExpr: true, startsExpr: true }),
+ parenR: new TokenType(")"),
+ comma: new TokenType(",", beforeExpr),
+ semi: new TokenType(";", beforeExpr),
+ colon: new TokenType(":", beforeExpr),
+ dot: new TokenType("."),
+ question: new TokenType("?", beforeExpr),
+ arrow: new TokenType("=>", beforeExpr),
+ template: new TokenType("template"),
+ ellipsis: new TokenType("...", beforeExpr),
+ backQuote: new TokenType("`", startsExpr),
+ dollarBraceL: new TokenType("${", { beforeExpr: true, startsExpr: true }),
+
+ // Operators. These carry several kinds of properties to help the
+ // parser use them properly (the presence of these properties is
+ // what categorizes them as operators).
+ //
+ // `binop`, when present, specifies that this operator is a binary
+ // operator, and will refer to its precedence.
+ //
+ // `prefix` and `postfix` mark the operator as a prefix or postfix
+ // unary operator.
+ //
+ // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
+ // binary operators with a very low precedence, that should result
+ // in AssignmentExpression nodes.
+
+ eq: new TokenType("=", { beforeExpr: true, isAssign: true }),
+ assign: new TokenType("_=", { beforeExpr: true, isAssign: true }),
+ incDec: new TokenType("++/--", { prefix: true, postfix: true, startsExpr: true }),
+ prefix: new TokenType("prefix", { beforeExpr: true, prefix: true, startsExpr: true }),
+ logicalOR: binop("||", 1),
+ logicalAND: binop("&&", 2),
+ bitwiseOR: binop("|", 3),
+ bitwiseXOR: binop("^", 4),
+ bitwiseAND: binop("&", 5),
+ equality: binop("==/!=", 6),
+ relational: binop("</>", 7),
+ bitShift: binop("<</>>", 8),
+ plusMin: new TokenType("+/-", { beforeExpr: true, binop: 9, prefix: true, startsExpr: true }),
+ modulo: binop("%", 10),
+ star: binop("*", 10),
+ slash: binop("/", 10)
+};
+
+exports.types = types;
+// Map keyword names to token types.
+
+var keywords = {};
+
+exports.keywords = keywords;
+// Succinct definitions of keyword token types
+function kw(name) {
+ var options = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
+
+ options.keyword = name;
+ keywords[name] = types["_" + name] = new TokenType(name, options);
+}
+
+kw("break");
+kw("case", beforeExpr);
+kw("catch");
+kw("continue");
+kw("debugger");
+kw("default", beforeExpr);
+kw("do", { isLoop: true });
+kw("else", beforeExpr);
+kw("finally");
+kw("for", { isLoop: true });
+kw("function", startsExpr);
+kw("if");
+kw("return", beforeExpr);
+kw("switch");
+kw("throw", beforeExpr);
+kw("try");
+kw("var");
+kw("let");
+kw("const");
+kw("while", { isLoop: true });
+kw("with");
+kw("new", { beforeExpr: true, startsExpr: true });
+kw("this", startsExpr);
+kw("super", startsExpr);
+kw("class");
+kw("extends", beforeExpr);
+kw("export");
+kw("import");
+kw("yield", { beforeExpr: true, startsExpr: true });
+kw("null", startsExpr);
+kw("true", startsExpr);
+kw("false", startsExpr);
+kw("in", { beforeExpr: true, binop: 7 });
+kw("instanceof", { beforeExpr: true, binop: 7 });
+kw("typeof", { beforeExpr: true, prefix: true, startsExpr: true });
+kw("void", { beforeExpr: true, prefix: true, startsExpr: true });
+kw("delete", { beforeExpr: true, prefix: true, startsExpr: true });
+
+},{}],15:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+exports.isArray = isArray;
+exports.has = has;
+
+function isArray(obj) {
+ return Object.prototype.toString.call(obj) === "[object Array]";
+}
+
+// Checks if an object has a property.
+
+function has(obj, propName) {
+ return Object.prototype.hasOwnProperty.call(obj, propName);
+}
+
+},{}],16:[function(_dereq_,module,exports){
+// Matches a whole line break (where CRLF is considered a single
+// line break). Used to count lines.
+
+"use strict";
+
+exports.__esModule = true;
+exports.isNewLine = isNewLine;
+var lineBreak = /\r\n?|\n|\u2028|\u2029/;
+exports.lineBreak = lineBreak;
+var lineBreakG = new RegExp(lineBreak.source, "g");
+
+exports.lineBreakG = lineBreakG;
+
+function isNewLine(code) {
+ return code === 10 || code === 13 || code === 0x2028 || code == 0x2029;
+}
+
+var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;
+exports.nonASCIIwhitespace = nonASCIIwhitespace;
+
+},{}]},{},[3])(3)
+});
\ No newline at end of file
diff --git a/dependencies/acorn/acorn_csp.js b/dependencies/acorn/acorn_csp.js
new file mode 100644
index 0000000000000000000000000000000000000000..ea08177e994eaabf775411bb02f68acb9fa73aad
--- /dev/null
+++ b/dependencies/acorn/acorn_csp.js
@@ -0,0 +1,3284 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.acorn = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
+// A recursive descent parser operates by defining functions for all
+// syntactic elements, and recursively calling those, each function
+// advancing the input stream and returning an AST node. Precedence
+// of constructs (for example, the fact that `!x[1]` means `!(x[1])`
+// instead of `(!x)[1]` is handled by the fact that the parser
+// function that parses unary prefix operators is called first, and
+// in turn calls the function that parses `[]` subscripts — that
+// way, it'll receive the node for `x[1]` already parsed, and wraps
+// *that* in the unary operator node.
+//
+// Acorn uses an [operator precedence parser][opp] to handle binary
+// operator precedence, because it is much more compact than using
+// the technique outlined above, which uses different, nesting
+// functions to specify precedence, for all of the ten binary
+// precedence levels that JavaScript defines.
+//
+// [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser
+
+"use strict";
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _identifier = _dereq_("./identifier");
+
+var _util = _dereq_("./util");
+
+var pp = _state.Parser.prototype;
+
+// Check if property name clashes with already added.
+// Object/class getters and setters are not allowed to clash —
+// either with each other or with an init property — and in
+// strict mode, init properties are also not allowed to be repeated.
+
+pp.checkPropClash = function (prop, propHash) {
+ if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand)) return;
+ var key = prop.key,
+ name = undefined;
+ switch (key.type) {
+ case "Identifier":
+ name = key.name;break;
+ case "Literal":
+ name = String(key.value);break;
+ default:
+ return;
+ }
+ var kind = prop.kind;
+ if (this.options.ecmaVersion >= 6) {
+ if (name === "__proto__" && kind === "init") {
+ if (propHash.proto) this.raise(key.start, "Redefinition of __proto__ property");
+ propHash.proto = true;
+ }
+ return;
+ }
+ var other = undefined;
+ if (_util.has(propHash, name)) {
+ other = propHash[name];
+ var isGetSet = kind !== "init";
+ if ((this.strict || isGetSet) && other[kind] || !(isGetSet ^ other.init)) this.raise(key.start, "Redefinition of property");
+ } else {
+ other = propHash[name] = {
+ init: false,
+ get: false,
+ set: false
+ };
+ }
+ other[kind] = true;
+};
+
+// ### Expression parsing
+
+// These nest, from the most general expression type at the top to
+// 'atomic', nondivisible expression types at the bottom. Most of
+// the functions will simply let the function(s) below them parse,
+// and, *if* the syntactic construct they handle is present, wrap
+// the AST node that the inner parser gave them in another node.
+
+// Parse a full expression. The optional arguments are used to
+// forbid the `in` operator (in for loops initalization expressions)
+// and provide reference for storing '=' operator inside shorthand
+// property assignment in contexts where both object expression
+// and object pattern might appear (so it's possible to raise
+// delayed syntax error at correct position).
+
+pp.parseExpression = function (noIn, refShorthandDefaultPos) {
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseMaybeAssign(noIn, refShorthandDefaultPos);
+ if (this.type === _tokentype.types.comma) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.expressions = [expr];
+ while (this.eat(_tokentype.types.comma)) node.expressions.push(this.parseMaybeAssign(noIn, refShorthandDefaultPos));
+ return this.finishNode(node, "SequenceExpression");
+ }
+ return expr;
+};
+
+// Parse an assignment expression. This includes applications of
+// operators like `+=`.
+
+pp.parseMaybeAssign = function (noIn, refShorthandDefaultPos, afterLeftParse) {
+ if (this.type == _tokentype.types._yield && this.inGenerator) return this.parseYield();
+
+ var failOnShorthandAssign = undefined;
+ if (!refShorthandDefaultPos) {
+ refShorthandDefaultPos = { start: 0 };
+ failOnShorthandAssign = true;
+ } else {
+ failOnShorthandAssign = false;
+ }
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ if (this.type == _tokentype.types.parenL || this.type == _tokentype.types.name) this.potentialArrowAt = this.start;
+ var left = this.parseMaybeConditional(noIn, refShorthandDefaultPos);
+ if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc);
+ if (this.type.isAssign) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.operator = this.value;
+ node.left = this.type === _tokentype.types.eq ? this.toAssignable(left) : left;
+ refShorthandDefaultPos.start = 0; // reset because shorthand default was used correctly
+ this.checkLVal(left);
+ this.next();
+ node.right = this.parseMaybeAssign(noIn);
+ return this.finishNode(node, "AssignmentExpression");
+ } else if (failOnShorthandAssign && refShorthandDefaultPos.start) {
+ this.unexpected(refShorthandDefaultPos.start);
+ }
+ return left;
+};
+
+// Parse a ternary conditional (`?:`) operator.
+
+pp.parseMaybeConditional = function (noIn, refShorthandDefaultPos) {
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseExprOps(noIn, refShorthandDefaultPos);
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+ if (this.eat(_tokentype.types.question)) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.test = expr;
+ node.consequent = this.parseMaybeAssign();
+ this.expect(_tokentype.types.colon);
+ node.alternate = this.parseMaybeAssign(noIn);
+ return this.finishNode(node, "ConditionalExpression");
+ }
+ return expr;
+};
+
+// Start the precedence parser.
+
+pp.parseExprOps = function (noIn, refShorthandDefaultPos) {
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseMaybeUnary(refShorthandDefaultPos);
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+ return this.parseExprOp(expr, startPos, startLoc, -1, noIn);
+};
+
+// Parse binary operators with the operator precedence parsing
+// algorithm. `left` is the left-hand side of the operator.
+// `minPrec` provides context that allows the function to stop and
+// defer further parser to one of its callers when it encounters an
+// operator that has a lower precedence than the set it is parsing.
+
+pp.parseExprOp = function (left, leftStartPos, leftStartLoc, minPrec, noIn) {
+ var prec = this.type.binop;
+ if (prec != null && (!noIn || this.type !== _tokentype.types._in)) {
+ if (prec > minPrec) {
+ var node = this.startNodeAt(leftStartPos, leftStartLoc);
+ node.left = left;
+ node.operator = this.value;
+ var op = this.type;
+ this.next();
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ node.right = this.parseExprOp(this.parseMaybeUnary(), startPos, startLoc, prec, noIn);
+ this.finishNode(node, op === _tokentype.types.logicalOR || op === _tokentype.types.logicalAND ? "LogicalExpression" : "BinaryExpression");
+ return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn);
+ }
+ }
+ return left;
+};
+
+// Parse unary operators, both prefix and postfix.
+
+pp.parseMaybeUnary = function (refShorthandDefaultPos) {
+ if (this.type.prefix) {
+ var node = this.startNode(),
+ update = this.type === _tokentype.types.incDec;
+ node.operator = this.value;
+ node.prefix = true;
+ this.next();
+ node.argument = this.parseMaybeUnary();
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);
+ if (update) this.checkLVal(node.argument);else if (this.strict && node.operator === "delete" && node.argument.type === "Identifier") this.raise(node.start, "Deleting local variable in strict mode");
+ return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
+ }
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseExprSubscripts(refShorthandDefaultPos);
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+ while (this.type.postfix && !this.canInsertSemicolon()) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.operator = this.value;
+ node.prefix = false;
+ node.argument = expr;
+ this.checkLVal(expr);
+ this.next();
+ expr = this.finishNode(node, "UpdateExpression");
+ }
+ return expr;
+};
+
+// Parse call, dot, and `[]`-subscript expressions.
+
+pp.parseExprSubscripts = function (refShorthandDefaultPos) {
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var expr = this.parseExprAtom(refShorthandDefaultPos);
+ if (refShorthandDefaultPos && refShorthandDefaultPos.start) return expr;
+ return this.parseSubscripts(expr, startPos, startLoc);
+};
+
+pp.parseSubscripts = function (base, startPos, startLoc, noCalls) {
+ for (;;) {
+ if (this.eat(_tokentype.types.dot)) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.object = base;
+ node.property = this.parseIdent(true);
+ node.computed = false;
+ base = this.finishNode(node, "MemberExpression");
+ } else if (this.eat(_tokentype.types.bracketL)) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.object = base;
+ node.property = this.parseExpression();
+ node.computed = true;
+ this.expect(_tokentype.types.bracketR);
+ base = this.finishNode(node, "MemberExpression");
+ } else if (!noCalls && this.eat(_tokentype.types.parenL)) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.callee = base;
+ node.arguments = this.parseExprList(_tokentype.types.parenR, false);
+ base = this.finishNode(node, "CallExpression");
+ } else if (this.type === _tokentype.types.backQuote) {
+ var node = this.startNodeAt(startPos, startLoc);
+ node.tag = base;
+ node.quasi = this.parseTemplate();
+ base = this.finishNode(node, "TaggedTemplateExpression");
+ } else {
+ return base;
+ }
+ }
+};
+
+// Parse an atomic expression — either a single token that is an
+// expression, an expression started by a keyword like `function` or
+// `new`, or an expression wrapped in punctuation like `()`, `[]`,
+// or `{}`.
+
+pp.parseExprAtom = function (refShorthandDefaultPos) {
+ var node = undefined,
+ canBeArrow = this.potentialArrowAt == this.start;
+ switch (this.type) {
+ case _tokentype.types._super:
+ if (!this.inFunction) this.raise(this.start, "'super' outside of function or class");
+ case _tokentype.types._this:
+ var type = this.type === _tokentype.types._this ? "ThisExpression" : "Super";
+ node = this.startNode();
+ this.next();
+ return this.finishNode(node, type);
+
+ case _tokentype.types._yield:
+ if (this.inGenerator) this.unexpected();
+
+ case _tokentype.types.name:
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ var id = this.parseIdent(this.type !== _tokentype.types.name);
+ if (canBeArrow && !this.canInsertSemicolon() && this.eat(_tokentype.types.arrow)) return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id]);
+ return id;
+
+ case _tokentype.types.regexp:
+ var value = this.value;
+ node = this.parseLiteral(value.value);
+ node.regex = { pattern: value.pattern, flags: value.flags };
+ return node;
+
+ case _tokentype.types.num:case _tokentype.types.string:
+ return this.parseLiteral(this.value);
+
+ case _tokentype.types._null:case _tokentype.types._true:case _tokentype.types._false:
+ node = this.startNode();
+ node.value = this.type === _tokentype.types._null ? null : this.type === _tokentype.types._true;
+ node.raw = this.type.keyword;
+ this.next();
+ return this.finishNode(node, "Literal");
+
+ case _tokentype.types.parenL:
+ return this.parseParenAndDistinguishExpression(canBeArrow);
+
+ case _tokentype.types.bracketL:
+ node = this.startNode();
+ this.next();
+ // check whether this is array comprehension or regular array
+ if (this.options.ecmaVersion >= 7 && this.type === _tokentype.types._for) {
+ return this.parseComprehension(node, false);
+ }
+ node.elements = this.parseExprList(_tokentype.types.bracketR, true, true, refShorthandDefaultPos);
+ return this.finishNode(node, "ArrayExpression");
+
+ case _tokentype.types.braceL:
+ return this.parseObj(false, refShorthandDefaultPos);
+
+ case _tokentype.types._function:
+ node = this.startNode();
+ this.next();
+ return this.parseFunction(node, false);
+
+ case _tokentype.types._class:
+ return this.parseClass(this.startNode(), false);
+
+ case _tokentype.types._new:
+ return this.parseNew();
+
+ case _tokentype.types.backQuote:
+ return this.parseTemplate();
+
+ default:
+ this.unexpected();
+ }
+};
+
+pp.parseLiteral = function (value) {
+ var node = this.startNode();
+ node.value = value;
+ node.raw = this.input.slice(this.start, this.end);
+ this.next();
+ return this.finishNode(node, "Literal");
+};
+
+pp.parseParenExpression = function () {
+ this.expect(_tokentype.types.parenL);
+ var val = this.parseExpression();
+ this.expect(_tokentype.types.parenR);
+ return val;
+};
+
+pp.parseParenAndDistinguishExpression = function (canBeArrow) {
+ var startPos = this.start,
+ startLoc = this.startLoc,
+ val = undefined;
+ if (this.options.ecmaVersion >= 6) {
+ this.next();
+
+ if (this.options.ecmaVersion >= 7 && this.type === _tokentype.types._for) {
+ return this.parseComprehension(this.startNodeAt(startPos, startLoc), true);
+ }
+
+ var innerStartPos = this.start,
+ innerStartLoc = this.startLoc;
+ var exprList = [],
+ first = true;
+ var refShorthandDefaultPos = { start: 0 },
+ spreadStart = undefined,
+ innerParenStart = undefined;
+ while (this.type !== _tokentype.types.parenR) {
+ first ? first = false : this.expect(_tokentype.types.comma);
+ if (this.type === _tokentype.types.ellipsis) {
+ spreadStart = this.start;
+ exprList.push(this.parseParenItem(this.parseRest()));
+ break;
+ } else {
+ if (this.type === _tokentype.types.parenL && !innerParenStart) {
+ innerParenStart = this.start;
+ }
+ exprList.push(this.parseMaybeAssign(false, refShorthandDefaultPos, this.parseParenItem));
+ }
+ }
+ var innerEndPos = this.start,
+ innerEndLoc = this.startLoc;
+ this.expect(_tokentype.types.parenR);
+
+ if (canBeArrow && !this.canInsertSemicolon() && this.eat(_tokentype.types.arrow)) {
+ if (innerParenStart) this.unexpected(innerParenStart);
+ return this.parseParenArrowList(startPos, startLoc, exprList);
+ }
+
+ if (!exprList.length) this.unexpected(this.lastTokStart);
+ if (spreadStart) this.unexpected(spreadStart);
+ if (refShorthandDefaultPos.start) this.unexpected(refShorthandDefaultPos.start);
+
+ if (exprList.length > 1) {
+ val = this.startNodeAt(innerStartPos, innerStartLoc);
+ val.expressions = exprList;
+ this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
+ } else {
+ val = exprList[0];
+ }
+ } else {
+ val = this.parseParenExpression();
+ }
+
+ if (this.options.preserveParens) {
+ var par = this.startNodeAt(startPos, startLoc);
+ par.expression = val;
+ return this.finishNode(par, "ParenthesizedExpression");
+ } else {
+ return val;
+ }
+};
+
+pp.parseParenItem = function (item) {
+ return item;
+};
+
+pp.parseParenArrowList = function (startPos, startLoc, exprList) {
+ return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList);
+};
+
+// New's precedence is slightly tricky. It must allow its argument
+// to be a `[]` or dot subscript expression, but not a call — at
+// least, not without wrapping it in parentheses. Thus, it uses the
+
+var empty = [];
+
+pp.parseNew = function () {
+ var node = this.startNode();
+ var meta = this.parseIdent(true);
+ if (this.options.ecmaVersion >= 6 && this.eat(_tokentype.types.dot)) {
+ node.meta = meta;
+ node.property = this.parseIdent(true);
+ if (node.property.name !== "target") this.raise(node.property.start, "The only valid meta property for new is new.target");
+ return this.finishNode(node, "MetaProperty");
+ }
+ var startPos = this.start,
+ startLoc = this.startLoc;
+ node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
+ if (this.eat(_tokentype.types.parenL)) node.arguments = this.parseExprList(_tokentype.types.parenR, false);else node.arguments = empty;
+ return this.finishNode(node, "NewExpression");
+};
+
+// Parse template expression.
+
+pp.parseTemplateElement = function () {
+ var elem = this.startNode();
+ elem.value = {
+ raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"),
+ cooked: this.value
+ };
+ this.next();
+ elem.tail = this.type === _tokentype.types.backQuote;
+ return this.finishNode(elem, "TemplateElement");
+};
+
+pp.parseTemplate = function () {
+ var node = this.startNode();
+ this.next();
+ node.expressions = [];
+ var curElt = this.parseTemplateElement();
+ node.quasis = [curElt];
+ while (!curElt.tail) {
+ this.expect(_tokentype.types.dollarBraceL);
+ node.expressions.push(this.parseExpression());
+ this.expect(_tokentype.types.braceR);
+ node.quasis.push(curElt = this.parseTemplateElement());
+ }
+ this.next();
+ return this.finishNode(node, "TemplateLiteral");
+};
+
+// Parse an object literal or binding pattern.
+
+pp.parseObj = function (isPattern, refShorthandDefaultPos) {
+ var node = this.startNode(),
+ first = true,
+ propHash = {};
+ node.properties = [];
+ this.next();
+ while (!this.eat(_tokentype.types.braceR)) {
+ if (!first) {
+ this.expect(_tokentype.types.comma);
+ if (this.afterTrailingComma(_tokentype.types.braceR)) break;
+ } else first = false;
+
+ var prop = this.startNode(),
+ isGenerator = undefined,
+ startPos = undefined,
+ startLoc = undefined;
+ if (this.options.ecmaVersion >= 6) {
+ prop.method = false;
+ prop.shorthand = false;
+ if (isPattern || refShorthandDefaultPos) {
+ startPos = this.start;
+ startLoc = this.startLoc;
+ }
+ if (!isPattern) isGenerator = this.eat(_tokentype.types.star);
+ }
+ this.parsePropertyName(prop);
+ this.parsePropertyValue(prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos);
+ this.checkPropClash(prop, propHash);
+ node.properties.push(this.finishNode(prop, "Property"));
+ }
+ return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression");
+};
+
+pp.parsePropertyValue = function (prop, isPattern, isGenerator, startPos, startLoc, refShorthandDefaultPos) {
+ if (this.eat(_tokentype.types.colon)) {
+ prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refShorthandDefaultPos);
+ prop.kind = "init";
+ } else if (this.options.ecmaVersion >= 6 && this.type === _tokentype.types.parenL) {
+ if (isPattern) this.unexpected();
+ prop.kind = "init";
+ prop.method = true;
+ prop.value = this.parseMethod(isGenerator);
+ } else if (this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && (this.type != _tokentype.types.comma && this.type != _tokentype.types.braceR)) {
+ if (isGenerator || isPattern) this.unexpected();
+ prop.kind = prop.key.name;
+ this.parsePropertyName(prop);
+ prop.value = this.parseMethod(false);
+ var paramCount = prop.kind === "get" ? 0 : 1;
+ if (prop.value.params.length !== paramCount) {
+ var start = prop.value.start;
+ if (prop.kind === "get") this.raise(start, "getter should have no params");else this.raise(start, "setter should have exactly one param");
+ }
+ } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
+ prop.kind = "init";
+ if (isPattern) {
+ if (this.isKeyword(prop.key.name) || this.strict && (_identifier.reservedWords.strictBind(prop.key.name) || _identifier.reservedWords.strict(prop.key.name)) || !this.options.allowReserved && this.isReservedWord(prop.key.name)) this.raise(prop.key.start, "Binding " + prop.key.name);
+ prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
+ } else if (this.type === _tokentype.types.eq && refShorthandDefaultPos) {
+ if (!refShorthandDefaultPos.start) refShorthandDefaultPos.start = this.start;
+ prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
+ } else {
+ prop.value = prop.key;
+ }
+ prop.shorthand = true;
+ } else this.unexpected();
+};
+
+pp.parsePropertyName = function (prop) {
+ if (this.options.ecmaVersion >= 6) {
+ if (this.eat(_tokentype.types.bracketL)) {
+ prop.computed = true;
+ prop.key = this.parseMaybeAssign();
+ this.expect(_tokentype.types.bracketR);
+ return prop.key;
+ } else {
+ prop.computed = false;
+ }
+ }
+ return prop.key = this.type === _tokentype.types.num || this.type === _tokentype.types.string ? this.parseExprAtom() : this.parseIdent(true);
+};
+
+// Initialize empty function node.
+
+pp.initFunction = function (node) {
+ node.id = null;
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = false;
+ node.expression = false;
+ }
+};
+
+// Parse object or class method.
+
+pp.parseMethod = function (isGenerator) {
+ var node = this.startNode();
+ this.initFunction(node);
+ this.expect(_tokentype.types.parenL);
+ node.params = this.parseBindingList(_tokentype.types.parenR, false, false);
+ var allowExpressionBody = undefined;
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = isGenerator;
+ }
+ this.parseFunctionBody(node, false);
+ return this.finishNode(node, "FunctionExpression");
+};
+
+// Parse arrow function expression with given parameters.
+
+pp.parseArrowExpression = function (node, params) {
+ this.initFunction(node);
+ node.params = this.toAssignableList(params, true);
+ this.parseFunctionBody(node, true);
+ return this.finishNode(node, "ArrowFunctionExpression");
+};
+
+// Parse function body and check parameters.
+
+pp.parseFunctionBody = function (node, allowExpression) {
+ var isExpression = allowExpression && this.type !== _tokentype.types.braceL;
+
+ if (isExpression) {
+ node.body = this.parseMaybeAssign();
+ node.expression = true;
+ } else {
+ // Start a new scope with regard to labels and the `inFunction`
+ // flag (restore them to their old value afterwards).
+ var oldInFunc = this.inFunction,
+ oldInGen = this.inGenerator,
+ oldLabels = this.labels;
+ this.inFunction = true;this.inGenerator = node.generator;this.labels = [];
+ node.body = this.parseBlock(true);
+ node.expression = false;
+ this.inFunction = oldInFunc;this.inGenerator = oldInGen;this.labels = oldLabels;
+ }
+
+ // If this is a strict mode function, verify that argument names
+ // are not repeated, and it does not try to bind the words `eval`
+ // or `arguments`.
+ if (this.strict || !isExpression && node.body.body.length && this.isUseStrict(node.body.body[0])) {
+ var nameHash = {},
+ oldStrict = this.strict;
+ this.strict = true;
+ if (node.id) this.checkLVal(node.id, true);
+ for (var i = 0; i < node.params.length; i++) {
+ this.checkLVal(node.params[i], true, nameHash);
+ }this.strict = oldStrict;
+ }
+};
+
+// Parses a comma-separated list of expressions, and returns them as
+// an array. `close` is the token type that ends the list, and
+// `allowEmpty` can be turned on to allow subsequent commas with
+// nothing in between them to be parsed as `null` (which is needed
+// for array literals).
+
+pp.parseExprList = function (close, allowTrailingComma, allowEmpty, refShorthandDefaultPos) {
+ var elts = [],
+ first = true;
+ while (!this.eat(close)) {
+ if (!first) {
+ this.expect(_tokentype.types.comma);
+ if (allowTrailingComma && this.afterTrailingComma(close)) break;
+ } else first = false;
+
+ var elt = undefined;
+ if (allowEmpty && this.type === _tokentype.types.comma) elt = null;else if (this.type === _tokentype.types.ellipsis) elt = this.parseSpread(refShorthandDefaultPos);else elt = this.parseMaybeAssign(false, refShorthandDefaultPos);
+ elts.push(elt);
+ }
+ return elts;
+};
+
+// Parse the next token as an identifier. If `liberal` is true (used
+// when parsing properties), it will also convert keywords into
+// identifiers.
+
+pp.parseIdent = function (liberal) {
+ var node = this.startNode();
+ if (liberal && this.options.allowReserved == "never") liberal = false;
+ if (this.type === _tokentype.types.name) {
+ if (!liberal && (!this.options.allowReserved && this.isReservedWord(this.value) || this.strict && _identifier.reservedWords.strict(this.value) && (this.options.ecmaVersion >= 6 || this.input.slice(this.start, this.end).indexOf("\\") == -1))) this.raise(this.start, "The keyword '" + this.value + "' is reserved");
+ node.name = this.value;
+ } else if (liberal && this.type.keyword) {
+ node.name = this.type.keyword;
+ } else {
+ this.unexpected();
+ }
+ this.next();
+ return this.finishNode(node, "Identifier");
+};
+
+// Parses yield expression inside generator.
+
+pp.parseYield = function () {
+ var node = this.startNode();
+ this.next();
+ if (this.type == _tokentype.types.semi || this.canInsertSemicolon() || this.type != _tokentype.types.star && !this.type.startsExpr) {
+ node.delegate = false;
+ node.argument = null;
+ } else {
+ node.delegate = this.eat(_tokentype.types.star);
+ node.argument = this.parseMaybeAssign();
+ }
+ return this.finishNode(node, "YieldExpression");
+};
+
+// Parses array and generator comprehensions.
+
+pp.parseComprehension = function (node, isGenerator) {
+ node.blocks = [];
+ while (this.type === _tokentype.types._for) {
+ var block = this.startNode();
+ this.next();
+ this.expect(_tokentype.types.parenL);
+ block.left = this.parseBindingAtom();
+ this.checkLVal(block.left, true);
+ this.expectContextual("of");
+ block.right = this.parseExpression();
+ this.expect(_tokentype.types.parenR);
+ node.blocks.push(this.finishNode(block, "ComprehensionBlock"));
+ }
+ node.filter = this.eat(_tokentype.types._if) ? this.parseParenExpression() : null;
+ node.body = this.parseExpression();
+ this.expect(isGenerator ? _tokentype.types.parenR : _tokentype.types.bracketR);
+ node.generator = isGenerator;
+ return this.finishNode(node, "ComprehensionExpression");
+};
+
+},{"./identifier":2,"./state":10,"./tokentype":14,"./util":15}],2:[function(_dereq_,module,exports){
+// This is a trick taken from Esprima. It turns out that, on
+// non-Chrome browsers, to check whether a string is in a set, a
+// predicate containing a big ugly `switch` statement is faster than
+// a regular expression, and on Chrome the two are about on par.
+// This function uses `eval` (non-lexical) to produce such a
+// predicate from a space-separated string of words.
+//
+// It starts by sorting the words by length.
+
+"use strict";
+
+exports.__esModule = true;
+exports.isIdentifierStart = isIdentifierStart;
+exports.isIdentifierChar = isIdentifierChar;
+// Removed to create an eval-free library
+
+// Reserved word lists for various dialects of the language
+
+var reservedWords = {
+ 3: function anonymous(str) {
+switch(str.length){case 6:switch(str){case "double":case "export":case "import":case "native":case "public":case "static":case "throws":return true}return false;case 4:switch(str){case "byte":case "char":case "enum":case "goto":case "long":return true}return false;case 5:switch(str){case "class":case "final":case "float":case "short":case "super":return true}return false;case 7:switch(str){case "boolean":case "extends":case "package":case "private":return true}return false;case 9:switch(str){case "interface":case "protected":case "transient":return true}return false;case 8:switch(str){case "abstract":case "volatile":return true}return false;case 10:return str === "implements";case 3:return str === "int";case 12:return str === "synchronized";}
+},
+ 5: function anonymous(str) {
+switch(str.length){case 5:switch(str){case "class":case "super":case "const":return true}return false;case 6:switch(str){case "export":case "import":return true}return false;case 4:return str === "enum";case 7:return str === "extends";}
+},
+ 6: function anonymous(str) {
+switch(str){case "enum":case "await":return true}return false;
+},
+ strict: function anonymous(str) {
+switch(str.length){case 9:switch(str){case "interface":case "protected":return true}return false;case 7:switch(str){case "package":case "private":return true}return false;case 6:switch(str){case "public":case "static":return true}return false;case 10:return str === "implements";case 3:return str === "let";case 5:return str === "yield";}
+},
+ strictBind: function anonymous(str) {
+switch(str){case "eval":case "arguments":return true}return false;
+}
+};
+
+exports.reservedWords = reservedWords;
+// And the keywords
+
+var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";
+
+var keywords = {
+ 5: function anonymous(str) {
+switch(str.length){case 4:switch(str){case "case":case "else":case "with":case "null":case "true":case "void":case "this":return true}return false;case 5:switch(str){case "break":case "catch":case "throw":case "while":case "false":return true}return false;case 3:switch(str){case "for":case "try":case "var":case "new":return true}return false;case 6:switch(str){case "return":case "switch":case "typeof":case "delete":return true}return false;case 8:switch(str){case "continue":case "debugger":case "function":return true}return false;case 2:switch(str){case "do":case "if":case "in":return true}return false;case 7:switch(str){case "default":case "finally":return true}return false;case 10:return str === "instanceof";}
+},
+ 6: function anonymous(str) {
+switch(str.length){case 5:switch(str){case "break":case "catch":case "throw":case "while":case "false":case "const":case "class":case "yield":case "super":return true}return false;case 4:switch(str){case "case":case "else":case "with":case "null":case "true":case "void":case "this":return true}return false;case 6:switch(str){case "return":case "switch":case "typeof":case "delete":case "export":case "import":return true}return false;case 3:switch(str){case "for":case "try":case "var":case "new":case "let":return true}return false;case 8:switch(str){case "continue":case "debugger":case "function":return true}return false;case 7:switch(str){case "default":case "finally":case "extends":return true}return false;case 2:switch(str){case "do":case "if":case "in":return true}return false;case 10:return str === "instanceof";}
+}
+};
+
+exports.keywords = keywords;
+// ## Character categories
+
+// Big ugly regular expressions that match characters in the
+// whitespace, identifier, and identifier-start categories. These
+// are only applied when a character is found to actually have a
+// code point above 128.
+// Generated by `tools/generate-identifier-regex.js`.
+
+var nonASCIIidentifierStartChars = "ªµºÀ-ÖØ-öø-ˁˆ-ˑˠ-ˤˬˮͰ-ʹͶͷͺ-ͽͿΆΈ-ΊΌΎ-ΡΣ-ϵϷ-ҁҊ-ԯԱ-Ֆՙա-ևא-תװ-ײؠ-يٮٯٱ-ۓەۥۦۮۯۺ-ۼۿܐܒ-ܯݍ-ޥޱߊ-ߪߴߵߺࠀ-ࠕࠚࠤࠨࡀ-ࡘࢠ-ࢲऄ-हऽॐक़-ॡॱ-ঀঅ-ঌএঐও-নপ-রলশ-হঽৎড়ঢ়য়-ৡৰৱਅ-ਊਏਐਓ-ਨਪ-ਰਲਲ਼ਵਸ਼ਸਹਖ਼-ੜਫ਼ੲ-ੴઅ-ઍએ-ઑઓ-નપ-રલળવ-હઽૐૠૡଅ-ଌଏଐଓ-ନପ-ରଲଳଵ-ହଽଡ଼ଢ଼ୟ-ୡୱஃஅ-ஊஎ-ஐஒ-கஙசஜஞடணதந-பம-ஹௐఅ-ఌఎ-ఐఒ-నప-హఽౘౙౠౡಅ-ಌಎ-ಐಒ-ನಪ-ಳವ-ಹಽೞೠೡೱೲഅ-ഌഎ-ഐഒ-ഺഽൎൠൡൺ-ൿඅ-ඖක-නඳ-රලව-ෆก-ะาำเ-ๆກຂຄງຈຊຍດ-ທນ-ຟມ-ຣລວສຫອ-ະາຳຽເ-ໄໆໜ-ໟༀཀ-ཇཉ-ཬྈ-ྌက-ဪဿၐ-ၕၚ-ၝၡၥၦၮ-ၰၵ-ႁႎႠ-ჅჇჍა-ჺჼ-ቈቊ-ቍቐ-ቖቘቚ-ቝበ-ኈኊ-ኍነ-ኰኲ-ኵኸ-ኾዀዂ-ዅወ-ዖዘ-ጐጒ-ጕጘ-ፚᎀ-ᎏᎠ-Ᏼᐁ-ᙬᙯ-ᙿᚁ-ᚚᚠ-ᛪᛮ-ᛸᜀ-ᜌᜎ-ᜑᜠ-ᜱᝀ-ᝑᝠ-ᝬᝮ-ᝰក-ឳៗៜᠠ-ᡷᢀ-ᢨᢪᢰ-ᣵᤀ-ᤞᥐ-ᥭᥰ-ᥴᦀ-ᦫᧁ-ᧇᨀ-ᨖᨠ-ᩔᪧᬅ-ᬳᭅ-ᭋᮃ-ᮠᮮᮯᮺ-ᯥᰀ-ᰣᱍ-ᱏᱚ-ᱽᳩ-ᳬᳮ-ᳱᳵᳶᴀ-ᶿḀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼιῂ-ῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲ-ῴῶ-ῼⁱⁿₐ-ₜℂℇℊ-ℓℕ℘-ℝℤΩℨK-ℹℼ-ℿⅅ-ⅉⅎⅠ-ↈⰀ-Ⱞⰰ-ⱞⱠ-ⳤⳫ-ⳮⳲⳳⴀ-ⴥⴧⴭⴰ-ⵧⵯⶀ-ⶖⶠ-ⶦⶨ-ⶮⶰ-ⶶⶸ-ⶾⷀ-ⷆⷈ-ⷎⷐ-ⷖⷘ-ⷞ々-〇〡-〩〱-〵〸-〼ぁ-ゖ゛-ゟァ-ヺー-ヿㄅ-ㄭㄱ-ㆎㆠ-ㆺㇰ-ㇿ㐀-䶵一-鿌ꀀ-ꒌꓐ-ꓽꔀ-ꘌꘐ-ꘟꘪꘫꙀ-ꙮꙿ-ꚝꚠ-ꛯꜗ-ꜟꜢ-ꞈꞋ-ꞎꞐ-ꞭꞰꞱꟷ-ꠁꠃ-ꠅꠇ-ꠊꠌ-ꠢꡀ-ꡳꢂ-ꢳꣲ-ꣷꣻꤊ-ꤥꤰ-ꥆꥠ-ꥼꦄ-ꦲꧏꧠ-ꧤꧦ-ꧯꧺ-ꧾꨀ-ꨨꩀ-ꩂꩄ-ꩋꩠ-ꩶꩺꩾ-ꪯꪱꪵꪶꪹ-ꪽꫀꫂꫛ-ꫝꫠ-ꫪꫲ-ꫴꬁ-ꬆꬉ-ꬎꬑ-ꬖꬠ-ꬦꬨ-ꬮꬰ-ꭚꭜ-ꭟꭤꭥꯀ-ꯢ가-힣ힰ-ퟆퟋ-ퟻ豈-舘並-龎ff-stﬓ-ﬗיִײַ-ﬨשׁ-זּטּ-לּמּנּסּףּפּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-ﷻﹰ-ﹴﹶ-ﻼＡ-Ｚａ-ｚｦ-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ";
+var nonASCIIidentifierChars = "·̀-ͯ·҃-֑҇-ׇֽֿׁׂׅׄؐ-ًؚ-٩ٰۖ-ۜ۟-۪ۤۧۨ-ۭ۰-۹ܑܰ-݊ަ-ް߀-߉߫-߳ࠖ-࠙ࠛ-ࠣࠥ-ࠧࠩ-࡙࠭-࡛ࣤ-ःऺ-़ा-ॏ॑-ॗॢॣ०-९ঁ-ঃ়া-ৄেৈো-্ৗৢৣ০-৯ਁ-ਃ਼ਾ-ੂੇੈੋ-੍ੑ੦-ੱੵઁ-ઃ઼ા-ૅે-ૉો-્ૢૣ૦-૯ଁ-ଃ଼ା-ୄେୈୋ-୍ୖୗୢୣ୦-୯ஂா-ூெ-ைொ-்ௗ௦-௯ఀ-ఃా-ౄె-ైొ-్ౕౖౢౣ౦-౯ಁ-ಃ಼ಾ-ೄೆ-ೈೊ-್ೕೖೢೣ೦-೯ഁ-ഃാ-ൄെ-ൈൊ-്ൗൢൣ൦-൯ංඃ්ා-ුූෘ-ෟ෦-෯ෲෳัิ-ฺ็-๎๐-๙ັິ-ູົຼ່-ໍ໐-໙༘༙༠-༩༹༵༷༾༿ཱ-྄྆྇ྍ-ྗྙ-ྼ࿆ါ-ှ၀-၉ၖ-ၙၞ-ၠၢ-ၤၧ-ၭၱ-ၴႂ-ႍႏ-ႝ፝-፟፩-፱ᜒ-᜔ᜲ-᜴ᝒᝓᝲᝳ឴-៓៝០-៩᠋-᠍᠐-᠙ᢩᤠ-ᤫᤰ-᤻᥆-᥏ᦰ-ᧀᧈᧉ᧐-᧚ᨗ-ᨛᩕ-ᩞ᩠-᩿᩼-᪉᪐-᪙᪰-᪽ᬀ-ᬄ᬴-᭄᭐-᭙᭫-᭳ᮀ-ᮂᮡ-ᮭ᮰-᮹᯦-᯳ᰤ-᰷᱀-᱉᱐-᱙᳐-᳔᳒-᳨᳭ᳲ-᳴᳸᳹᷀-᷵᷼-᷿‿⁀⁔⃐-⃥⃜⃡-⃰⳯-⵿⳱ⷠ-〪ⷿ-゙゚〯꘠-꘩꙯ꙴ-꙽ꚟ꛰꛱ꠂ꠆ꠋꠣ-ꠧꢀꢁꢴ-꣄꣐-꣙꣠-꣱꤀-꤉ꤦ-꤭ꥇ-꥓ꦀ-ꦃ꦳-꧀꧐-꧙ꧥ꧰-꧹ꨩ-ꨶꩃꩌꩍ꩐-꩙ꩻ-ꩽꪰꪲ-ꪴꪷꪸꪾ꪿꫁ꫫ-ꫯꫵ꫶ꯣ-ꯪ꯬꯭꯰-꯹ﬞ︀-️︠-︭︳︴﹍-﹏０-９＿";
+
+var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
+var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
+
+nonASCIIidentifierStartChars = nonASCIIidentifierChars = null;
+
+// These are a run-length and offset encoded representation of the
+// >0xffff code points that are a valid part of identifiers. The
+// offset starts at 0x10000, and each pair of numbers represents an
+// offset to the next range, and then a size of the range. They were
+// generated by tools/generate-identifier-regex.js
+var astralIdentifierStartCodes = [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 17, 26, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 99, 39, 9, 51, 157, 310, 10, 21, 11, 7, 153, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 98, 21, 11, 25, 71, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 26, 45, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 955, 52, 76, 44, 33, 24, 27, 35, 42, 34, 4, 0, 13, 47, 15, 3, 22, 0, 38, 17, 2, 24, 133, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 32, 4, 287, 47, 21, 1, 2, 0, 185, 46, 82, 47, 21, 0, 60, 42, 502, 63, 32, 0, 449, 56, 1288, 920, 104, 110, 2962, 1070, 13266, 568, 8, 30, 114, 29, 19, 47, 17, 3, 32, 20, 6, 18, 881, 68, 12, 0, 67, 12, 16481, 1, 3071, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 4149, 196, 1340, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42710, 42, 4148, 12, 221, 16355, 541];
+var astralIdentifierCodes = [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 1306, 2, 54, 14, 32, 9, 16, 3, 46, 10, 54, 9, 7, 2, 37, 13, 2, 9, 52, 0, 13, 2, 49, 13, 16, 9, 83, 11, 168, 11, 6, 9, 8, 2, 57, 0, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 316, 19, 13, 9, 214, 6, 3, 8, 112, 16, 16, 9, 82, 12, 9, 9, 535, 9, 20855, 9, 135, 4, 60, 6, 26, 9, 1016, 45, 17, 3, 19723, 1, 5319, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 4305, 6, 792618, 239];
+
+// This has a complexity linear to the value of the code. The
+// assumption is that looking up astral identifier characters is
+// rare.
+function isInAstralSet(code, set) {
+ var pos = 0x10000;
+ for (var i = 0; i < set.length; i += 2) {
+ pos += set[i];
+ if (pos > code) return false;
+ pos += set[i + 1];
+ if (pos >= code) return true;
+ }
+}
+
+// Test whether a given character code starts an identifier.
+
+function isIdentifierStart(code, astral) {
+ if (code < 65) return code === 36;
+ if (code < 91) return true;
+ if (code < 97) return code === 95;
+ if (code < 123) return true;
+ if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code));
+ if (astral === false) return false;
+ return isInAstralSet(code, astralIdentifierStartCodes);
+}
+
+// Test whether a given character is part of an identifier.
+
+function isIdentifierChar(code, astral) {
+ if (code < 48) return code === 36;
+ if (code < 58) return true;
+ if (code < 65) return false;
+ if (code < 91) return true;
+ if (code < 97) return code === 95;
+ if (code < 123) return true;
+ if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code));
+ if (astral === false) return false;
+ return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes);
+}
+
+},{}],3:[function(_dereq_,module,exports){
+// Acorn is a tiny, fast JavaScript parser written in JavaScript.
+//
+// Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and
+// various contributors and released under an MIT license.
+//
+// Git repositories for Acorn are available at
+//
+// http://marijnhaverbeke.nl/git/acorn
+// https://github.com/marijnh/acorn.git
+//
+// Please use the [github bug tracker][ghbt] to report issues.
+//
+// [ghbt]: https://github.com/marijnh/acorn/issues
+//
+// This file defines the main parser interface. The library also comes
+// with a [error-tolerant parser][dammit] and an
+// [abstract syntax tree walker][walk], defined in other files.
+//
+// [dammit]: acorn_loose.js
+// [walk]: util/walk.js
+
+"use strict";
+
+exports.__esModule = true;
+exports.parse = parse;
+exports.parseExpressionAt = parseExpressionAt;
+exports.tokenizer = tokenizer;
+
+var _state = _dereq_("./state");
+
+var _options = _dereq_("./options");
+
+_dereq_("./parseutil");
+
+_dereq_("./statement");
+
+_dereq_("./lval");
+
+_dereq_("./expression");
+
+_dereq_("./location");
+
+exports.Parser = _state.Parser;
+exports.plugins = _state.plugins;
+exports.defaultOptions = _options.defaultOptions;
+
+var _locutil = _dereq_("./locutil");
+
+exports.Position = _locutil.Position;
+exports.SourceLocation = _locutil.SourceLocation;
+exports.getLineInfo = _locutil.getLineInfo;
+
+var _node = _dereq_("./node");
+
+exports.Node = _node.Node;
+
+var _tokentype = _dereq_("./tokentype");
+
+exports.TokenType = _tokentype.TokenType;
+exports.tokTypes = _tokentype.types;
+
+var _tokencontext = _dereq_("./tokencontext");
+
+exports.TokContext = _tokencontext.TokContext;
+exports.tokContexts = _tokencontext.types;
+
+var _identifier = _dereq_("./identifier");
+
+exports.isIdentifierChar = _identifier.isIdentifierChar;
+exports.isIdentifierStart = _identifier.isIdentifierStart;
+
+var _tokenize = _dereq_("./tokenize");
+
+exports.Token = _tokenize.Token;
+
+var _whitespace = _dereq_("./whitespace");
+
+exports.isNewLine = _whitespace.isNewLine;
+exports.lineBreak = _whitespace.lineBreak;
+exports.lineBreakG = _whitespace.lineBreakG;
+var version = "2.3.0";
+
+exports.version = version;
+// The main exported interface (under `self.acorn` when in the
+// browser) is a `parse` function that takes a code string and
+// returns an abstract syntax tree as specified by [Mozilla parser
+// API][api].
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+
+function parse(input, options) {
+ return new _state.Parser(options, input).parse();
+}
+
+// This function tries to parse a single expression at a given
+// offset in a string. Useful for parsing mixed-language formats
+// that embed JavaScript expressions.
+
+function parseExpressionAt(input, pos, options) {
+ var p = new _state.Parser(options, input, pos);
+ p.nextToken();
+ return p.parseExpression();
+}
+
+// Acorn is organized as a tokenizer and a recursive-descent parser.
+// The `tokenize` export provides an interface to the tokenizer.
+
+function tokenizer(input, options) {
+ return new _state.Parser(options, input);
+}
+
+},{"./expression":1,"./identifier":2,"./location":4,"./locutil":5,"./lval":6,"./node":7,"./options":8,"./parseutil":9,"./state":10,"./statement":11,"./tokencontext":12,"./tokenize":13,"./tokentype":14,"./whitespace":16}],4:[function(_dereq_,module,exports){
+"use strict";
+
+var _state = _dereq_("./state");
+
+var _locutil = _dereq_("./locutil");
+
+var pp = _state.Parser.prototype;
+
+// This function is used to raise exceptions on parse errors. It
+// takes an offset integer (into the current `input`) to indicate
+// the location of the error, attaches the position to the end
+// of the error message, and then raises a `SyntaxError` with that
+// message.
+
+pp.raise = function (pos, message) {
+ var loc = _locutil.getLineInfo(this.input, pos);
+ message += " (" + loc.line + ":" + loc.column + ")";
+ var err = new SyntaxError(message);
+ err.pos = pos;err.loc = loc;err.raisedAt = this.pos;
+ throw err;
+};
+
+pp.curPosition = function () {
+ if (this.options.locations) {
+ return new _locutil.Position(this.curLine, this.pos - this.lineStart);
+ }
+};
+
+},{"./locutil":5,"./state":10}],5:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+exports.getLineInfo = getLineInfo;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _whitespace = _dereq_("./whitespace");
+
+// These are used when `options.locations` is on, for the
+// `startLoc` and `endLoc` properties.
+
+var Position = (function () {
+ function Position(line, col) {
+ _classCallCheck(this, Position);
+
+ this.line = line;
+ this.column = col;
+ }
+
+ Position.prototype.offset = function offset(n) {
+ return new Position(this.line, this.column + n);
+ };
+
+ return Position;
+})();
+
+exports.Position = Position;
+
+var SourceLocation = function SourceLocation(p, start, end) {
+ _classCallCheck(this, SourceLocation);
+
+ this.start = start;
+ this.end = end;
+ if (p.sourceFile !== null) this.source = p.sourceFile;
+};
+
+exports.SourceLocation = SourceLocation;
+
+// The `getLineInfo` function is mostly useful when the
+// `locations` option is off (for performance reasons) and you
+// want to find the line/column position for a given character
+// offset. `input` should be the code string that the offset refers
+// into.
+
+function getLineInfo(input, offset) {
+ for (var line = 1, cur = 0;;) {
+ _whitespace.lineBreakG.lastIndex = cur;
+ var match = _whitespace.lineBreakG.exec(input);
+ if (match && match.index < offset) {
+ ++line;
+ cur = match.index + match[0].length;
+ } else {
+ return new Position(line, offset - cur);
+ }
+ }
+}
+
+},{"./whitespace":16}],6:[function(_dereq_,module,exports){
+"use strict";
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _identifier = _dereq_("./identifier");
+
+var _util = _dereq_("./util");
+
+var pp = _state.Parser.prototype;
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+pp.toAssignable = function (node, isBinding) {
+ if (this.options.ecmaVersion >= 6 && node) {
+ switch (node.type) {
+ case "Identifier":
+ case "ObjectPattern":
+ case "ArrayPattern":
+ case "AssignmentPattern":
+ break;
+
+ case "ObjectExpression":
+ node.type = "ObjectPattern";
+ for (var i = 0; i < node.properties.length; i++) {
+ var prop = node.properties[i];
+ if (prop.kind !== "init") this.raise(prop.key.start, "Object pattern can't contain getter or setter");
+ this.toAssignable(prop.value, isBinding);
+ }
+ break;
+
+ case "ArrayExpression":
+ node.type = "ArrayPattern";
+ this.toAssignableList(node.elements, isBinding);
+ break;
+
+ case "AssignmentExpression":
+ if (node.operator === "=") {
+ node.type = "AssignmentPattern";
+ delete node.operator;
+ } else {
+ this.raise(node.left.end, "Only '=' operator can be used for specifying default value.");
+ }
+ break;
+
+ case "ParenthesizedExpression":
+ node.expression = this.toAssignable(node.expression, isBinding);
+ break;
+
+ case "MemberExpression":
+ if (!isBinding) break;
+
+ default:
+ this.raise(node.start, "Assigning to rvalue");
+ }
+ }
+ return node;
+};
+
+// Convert list of expression atoms to binding list.
+
+pp.toAssignableList = function (exprList, isBinding) {
+ var end = exprList.length;
+ if (end) {
+ var last = exprList[end - 1];
+ if (last && last.type == "RestElement") {
+ --end;
+ } else if (last && last.type == "SpreadElement") {
+ last.type = "RestElement";
+ var arg = last.argument;
+ this.toAssignable(arg, isBinding);
+ if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern") this.unexpected(arg.start);
+ --end;
+ }
+ }
+ for (var i = 0; i < end; i++) {
+ var elt = exprList[i];
+ if (elt) this.toAssignable(elt, isBinding);
+ }
+ return exprList;
+};
+
+// Parses spread element.
+
+pp.parseSpread = function (refShorthandDefaultPos) {
+ var node = this.startNode();
+ this.next();
+ node.argument = this.parseMaybeAssign(refShorthandDefaultPos);
+ return this.finishNode(node, "SpreadElement");
+};
+
+pp.parseRest = function () {
+ var node = this.startNode();
+ this.next();
+ node.argument = this.type === _tokentype.types.name || this.type === _tokentype.types.bracketL ? this.parseBindingAtom() : this.unexpected();
+ return this.finishNode(node, "RestElement");
+};
+
+// Parses lvalue (assignable) atom.
+
+pp.parseBindingAtom = function () {
+ if (this.options.ecmaVersion < 6) return this.parseIdent();
+ switch (this.type) {
+ case _tokentype.types.name:
+ return this.parseIdent();
+
+ case _tokentype.types.bracketL:
+ var node = this.startNode();
+ this.next();
+ node.elements = this.parseBindingList(_tokentype.types.bracketR, true, true);
+ return this.finishNode(node, "ArrayPattern");
+
+ case _tokentype.types.braceL:
+ return this.parseObj(true);
+
+ default:
+ this.unexpected();
+ }
+};
+
+pp.parseBindingList = function (close, allowEmpty, allowTrailingComma) {
+ var elts = [],
+ first = true;
+ while (!this.eat(close)) {
+ if (first) first = false;else this.expect(_tokentype.types.comma);
+ if (allowEmpty && this.type === _tokentype.types.comma) {
+ elts.push(null);
+ } else if (allowTrailingComma && this.afterTrailingComma(close)) {
+ break;
+ } else if (this.type === _tokentype.types.ellipsis) {
+ var rest = this.parseRest();
+ this.parseBindingListItem(rest);
+ elts.push(rest);
+ this.expect(close);
+ break;
+ } else {
+ var elem = this.parseMaybeDefault(this.start, this.startLoc);
+ this.parseBindingListItem(elem);
+ elts.push(elem);
+ }
+ }
+ return elts;
+};
+
+pp.parseBindingListItem = function (param) {
+ return param;
+};
+
+// Parses assignment pattern around given atom if possible.
+
+pp.parseMaybeDefault = function (startPos, startLoc, left) {
+ left = left || this.parseBindingAtom();
+ if (!this.eat(_tokentype.types.eq)) return left;
+ var node = this.startNodeAt(startPos, startLoc);
+ node.left = left;
+ node.right = this.parseMaybeAssign();
+ return this.finishNode(node, "AssignmentPattern");
+};
+
+// Verify that a node is an lval — something that can be assigned
+// to.
+
+pp.checkLVal = function (expr, isBinding, checkClashes) {
+ switch (expr.type) {
+ case "Identifier":
+ if (this.strict && (_identifier.reservedWords.strictBind(expr.name) || _identifier.reservedWords.strict(expr.name))) this.raise(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode");
+ if (checkClashes) {
+ if (_util.has(checkClashes, expr.name)) this.raise(expr.start, "Argument name clash in strict mode");
+ checkClashes[expr.name] = true;
+ }
+ break;
+
+ case "MemberExpression":
+ if (isBinding) this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression");
+ break;
+
+ case "ObjectPattern":
+ for (var i = 0; i < expr.properties.length; i++) {
+ this.checkLVal(expr.properties[i].value, isBinding, checkClashes);
+ }break;
+
+ case "ArrayPattern":
+ for (var i = 0; i < expr.elements.length; i++) {
+ var elem = expr.elements[i];
+ if (elem) this.checkLVal(elem, isBinding, checkClashes);
+ }
+ break;
+
+ case "AssignmentPattern":
+ this.checkLVal(expr.left, isBinding, checkClashes);
+ break;
+
+ case "RestElement":
+ this.checkLVal(expr.argument, isBinding, checkClashes);
+ break;
+
+ case "ParenthesizedExpression":
+ this.checkLVal(expr.expression, isBinding, checkClashes);
+ break;
+
+ default:
+ this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue");
+ }
+};
+
+},{"./identifier":2,"./state":10,"./tokentype":14,"./util":15}],7:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _state = _dereq_("./state");
+
+var _locutil = _dereq_("./locutil");
+
+var Node = function Node(parser, pos, loc) {
+ _classCallCheck(this, Node);
+
+ this.type = "";
+ this.start = pos;
+ this.end = 0;
+ if (parser.options.locations) this.loc = new _locutil.SourceLocation(parser, loc);
+ if (parser.options.directSourceFile) this.sourceFile = parser.options.directSourceFile;
+ if (parser.options.ranges) this.range = [pos, 0];
+};
+
+exports.Node = Node;
+
+// Start an AST node, attaching a start offset.
+
+var pp = _state.Parser.prototype;
+
+pp.startNode = function () {
+ return new Node(this, this.start, this.startLoc);
+};
+
+pp.startNodeAt = function (pos, loc) {
+ return new Node(this, pos, loc);
+};
+
+// Finish an AST node, adding `type` and `end` properties.
+
+function finishNodeAt(node, type, pos, loc) {
+ node.type = type;
+ node.end = pos;
+ if (this.options.locations) node.loc.end = loc;
+ if (this.options.ranges) node.range[1] = pos;
+ return node;
+}
+
+pp.finishNode = function (node, type) {
+ return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc);
+};
+
+// Finish node at given position
+
+pp.finishNodeAt = function (node, type, pos, loc) {
+ return finishNodeAt.call(this, node, type, pos, loc);
+};
+
+},{"./locutil":5,"./state":10}],8:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+exports.getOptions = getOptions;
+
+var _util = _dereq_("./util");
+
+var _locutil = _dereq_("./locutil");
+
+// A second optional argument can be given to further configure
+// the parser process. These options are recognized:
+
+var defaultOptions = {
+ // `ecmaVersion` indicates the ECMAScript version to parse. Must
+ // be either 3, or 5, or 6. This influences support for strict
+ // mode, the set of reserved words, support for getters and
+ // setters and other features.
+ ecmaVersion: 5,
+ // Source type ("script" or "module") for different semantics
+ sourceType: "script",
+ // `onInsertedSemicolon` can be a callback that will be called
+ // when a semicolon is automatically inserted. It will be passed
+ // th position of the comma as an offset, and if `locations` is
+ // enabled, it is given the location as a `{line, column}` object
+ // as second argument.
+ onInsertedSemicolon: null,
+ // `onTrailingComma` is similar to `onInsertedSemicolon`, but for
+ // trailing commas.
+ onTrailingComma: null,
+ // By default, reserved words are not enforced. Disable
+ // `allowReserved` to enforce them. When this option has the
+ // value "never", reserved words and keywords can also not be
+ // used as property names.
+ allowReserved: true,
+ // When enabled, a return at the top level is not considered an
+ // error.
+ allowReturnOutsideFunction: false,
+ // When enabled, import/export statements are not constrained to
+ // appearing at the top of the program.
+ allowImportExportEverywhere: false,
+ // When enabled, hashbang directive in the beginning of file
+ // is allowed and treated as a line comment.
+ allowHashBang: false,
+ // When `locations` is on, `loc` properties holding objects with
+ // `start` and `end` properties in `{line, column}` form (with
+ // line being 1-based and column 0-based) will be attached to the
+ // nodes.
+ locations: false,
+ // A function can be passed as `onToken` option, which will
+ // cause Acorn to call that function with object in the same
+ // format as tokenize() returns. Note that you are not
+ // allowed to call the parser from the callback—that will
+ // corrupt its internal state.
+ onToken: null,
+ // A function can be passed as `onComment` option, which will
+ // cause Acorn to call that function with `(block, text, start,
+ // end)` parameters whenever a comment is skipped. `block` is a
+ // boolean indicating whether this is a block (`/* */`) comment,
+ // `text` is the content of the comment, and `start` and `end` are
+ // character offsets that denote the start and end of the comment.
+ // When the `locations` option is on, two more parameters are
+ // passed, the full `{line, column}` locations of the start and
+ // end of the comments. Note that you are not allowed to call the
+ // parser from the callback—that will corrupt its internal state.
+ onComment: null,
+ // Nodes have their start and end characters offsets recorded in
+ // `start` and `end` properties (directly on the node, rather than
+ // the `loc` object, which holds line/column data. To also add a
+ // [semi-standardized][range] `range` property holding a `[start,
+ // end]` array with the same numbers, set the `ranges` option to
+ // `true`.
+ //
+ // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
+ ranges: false,
+ // It is possible to parse multiple files into a single AST by
+ // passing the tree produced by parsing the first file as
+ // `program` option in subsequent parses. This will add the
+ // toplevel forms of the parsed file to the `Program` (top) node
+ // of an existing parse tree.
+ program: null,
+ // When `locations` is on, you can pass this to record the source
+ // file in every node's `loc` object.
+ sourceFile: null,
+ // This value, if given, is stored in every node, whether
+ // `locations` is on or off.
+ directSourceFile: null,
+ // When enabled, parenthesized expressions are represented by
+ // (non-standard) ParenthesizedExpression nodes
+ preserveParens: false,
+ plugins: {}
+};
+
+exports.defaultOptions = defaultOptions;
+// Interpret and default an options object
+
+function getOptions(opts) {
+ var options = {};
+ for (var opt in defaultOptions) {
+ options[opt] = opts && _util.has(opts, opt) ? opts[opt] : defaultOptions[opt];
+ }if (_util.isArray(options.onToken)) {
+ (function () {
+ var tokens = options.onToken;
+ options.onToken = function (token) {
+ return tokens.push(token);
+ };
+ })();
+ }
+ if (_util.isArray(options.onComment)) options.onComment = pushComment(options, options.onComment);
+
+ return options;
+}
+
+function pushComment(options, array) {
+ return function (block, text, start, end, startLoc, endLoc) {
+ var comment = {
+ type: block ? "Block" : "Line",
+ value: text,
+ start: start,
+ end: end
+ };
+ if (options.locations) comment.loc = new _locutil.SourceLocation(this, startLoc, endLoc);
+ if (options.ranges) comment.range = [start, end];
+ array.push(comment);
+ };
+}
+
+},{"./locutil":5,"./util":15}],9:[function(_dereq_,module,exports){
+"use strict";
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _whitespace = _dereq_("./whitespace");
+
+var pp = _state.Parser.prototype;
+
+// ## Parser utilities
+
+// Test whether a statement node is the string literal `"use strict"`.
+
+pp.isUseStrict = function (stmt) {
+ return this.options.ecmaVersion >= 5 && stmt.type === "ExpressionStatement" && stmt.expression.type === "Literal" && stmt.expression.raw.slice(1, -1) === "use strict";
+};
+
+// Predicate that tests whether the next token is of the given
+// type, and if yes, consumes it as a side effect.
+
+pp.eat = function (type) {
+ if (this.type === type) {
+ this.next();
+ return true;
+ } else {
+ return false;
+ }
+};
+
+// Tests whether parsed token is a contextual keyword.
+
+pp.isContextual = function (name) {
+ return this.type === _tokentype.types.name && this.value === name;
+};
+
+// Consumes contextual keyword if possible.
+
+pp.eatContextual = function (name) {
+ return this.value === name && this.eat(_tokentype.types.name);
+};
+
+// Asserts that following token is given contextual keyword.
+
+pp.expectContextual = function (name) {
+ if (!this.eatContextual(name)) this.unexpected();
+};
+
+// Test whether a semicolon can be inserted at the current position.
+
+pp.canInsertSemicolon = function () {
+ return this.type === _tokentype.types.eof || this.type === _tokentype.types.braceR || _whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.start));
+};
+
+pp.insertSemicolon = function () {
+ if (this.canInsertSemicolon()) {
+ if (this.options.onInsertedSemicolon) this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc);
+ return true;
+ }
+};
+
+// Consume a semicolon, or, failing that, see if we are allowed to
+// pretend that there is a semicolon at this position.
+
+pp.semicolon = function () {
+ if (!this.eat(_tokentype.types.semi) && !this.insertSemicolon()) this.unexpected();
+};
+
+pp.afterTrailingComma = function (tokType) {
+ if (this.type == tokType) {
+ if (this.options.onTrailingComma) this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc);
+ this.next();
+ return true;
+ }
+};
+
+// Expect a token of a given type. If found, consume it, otherwise,
+// raise an unexpected token error.
+
+pp.expect = function (type) {
+ this.eat(type) || this.unexpected();
+};
+
+// Raise an unexpected token error.
+
+pp.unexpected = function (pos) {
+ this.raise(pos != null ? pos : this.start, "Unexpected token");
+};
+
+},{"./state":10,"./tokentype":14,"./whitespace":16}],10:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _identifier = _dereq_("./identifier");
+
+var _tokentype = _dereq_("./tokentype");
+
+var _whitespace = _dereq_("./whitespace");
+
+var _options = _dereq_("./options");
+
+// Registered plugins
+var plugins = {};
+
+exports.plugins = plugins;
+
+var Parser = (function () {
+ function Parser(options, input, startPos) {
+ _classCallCheck(this, Parser);
+
+ this.options = _options.getOptions(options);
+ this.sourceFile = this.options.sourceFile;
+ this.isKeyword = _identifier.keywords[this.options.ecmaVersion >= 6 ? 6 : 5];
+ this.isReservedWord = _identifier.reservedWords[this.options.ecmaVersion];
+ this.input = String(input);
+
+ // Used to signal to callers of `readWord1` whether the word
+ // contained any escape sequences. This is needed because words with
+ // escape sequences must not be interpreted as keywords.
+ this.containsEsc = false;
+
+ // Load plugins
+ this.loadPlugins(this.options.plugins);
+
+ // Set up token state
+
+ // The current position of the tokenizer in the input.
+ if (startPos) {
+ this.pos = startPos;
+ this.lineStart = Math.max(0, this.input.lastIndexOf("\n", startPos));
+ this.curLine = this.input.slice(0, this.lineStart).split(_whitespace.lineBreak).length;
+ } else {
+ this.pos = this.lineStart = 0;
+ this.curLine = 1;
+ }
+
+ // Properties of the current token:
+ // Its type
+ this.type = _tokentype.types.eof;
+ // For tokens that include more information than their type, the value
+ this.value = null;
+ // Its start and end offset
+ this.start = this.end = this.pos;
+ // And, if locations are used, the {line, column} object
+ // corresponding to those offsets
+ this.startLoc = this.endLoc = this.curPosition();
+
+ // Position information for the previous token
+ this.lastTokEndLoc = this.lastTokStartLoc = null;
+ this.lastTokStart = this.lastTokEnd = this.pos;
+
+ // The context stack is used to superficially track syntactic
+ // context to predict whether a regular expression is allowed in a
+ // given position.
+ this.context = this.initialContext();
+ this.exprAllowed = true;
+
+ // Figure out if it's a module code.
+ this.strict = this.inModule = this.options.sourceType === "module";
+
+ // Used to signify the start of a potential arrow function
+ this.potentialArrowAt = -1;
+
+ // Flags to track whether we are in a function, a generator.
+ this.inFunction = this.inGenerator = false;
+ // Labels in scope.
+ this.labels = [];
+
+ // If enabled, skip leading hashbang line.
+ if (this.pos === 0 && this.options.allowHashBang && this.input.slice(0, 2) === "#!") this.skipLineComment(2);
+ }
+
+ Parser.prototype.extend = function extend(name, f) {
+ this[name] = f(this[name]);
+ };
+
+ Parser.prototype.loadPlugins = function loadPlugins(pluginConfigs) {
+ for (var _name in pluginConfigs) {
+ var plugin = plugins[_name];
+ if (!plugin) throw new Error("Plugin '" + _name + "' not found");
+ plugin(this, pluginConfigs[_name]);
+ }
+ };
+
+ Parser.prototype.parse = function parse() {
+ var node = this.options.program || this.startNode();
+ this.nextToken();
+ return this.parseTopLevel(node);
+ };
+
+ return Parser;
+})();
+
+exports.Parser = Parser;
+
+},{"./identifier":2,"./options":8,"./tokentype":14,"./whitespace":16}],11:[function(_dereq_,module,exports){
+"use strict";
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _whitespace = _dereq_("./whitespace");
+
+var pp = _state.Parser.prototype;
+
+// ### Statement parsing
+
+// Parse a program. Initializes the parser, reads any number of
+// statements, and wraps them in a Program node. Optionally takes a
+// `program` argument. If present, the statements will be appended
+// to its body instead of creating a new node.
+
+pp.parseTopLevel = function (node) {
+ var first = true;
+ if (!node.body) node.body = [];
+ while (this.type !== _tokentype.types.eof) {
+ var stmt = this.parseStatement(true, true);
+ node.body.push(stmt);
+ if (first) {
+ if (this.isUseStrict(stmt)) this.setStrict(true);
+ first = false;
+ }
+ }
+ this.next();
+ if (this.options.ecmaVersion >= 6) {
+ node.sourceType = this.options.sourceType;
+ }
+ return this.finishNode(node, "Program");
+};
+
+var loopLabel = { kind: "loop" },
+ switchLabel = { kind: "switch" };
+
+// Parse a single statement.
+//
+// If expecting a statement and finding a slash operator, parse a
+// regular expression literal. This is to handle cases like
+// `if (foo) /blah/.exec(foo)`, where looking at the previous token
+// does not help.
+
+pp.parseStatement = function (declaration, topLevel) {
+ var starttype = this.type,
+ node = this.startNode();
+
+ // Most types of statements are recognized by the keyword they
+ // start with. Many are trivial to parse, some require a bit of
+ // complexity.
+
+ switch (starttype) {
+ case _tokentype.types._break:case _tokentype.types._continue:
+ return this.parseBreakContinueStatement(node, starttype.keyword);
+ case _tokentype.types._debugger:
+ return this.parseDebuggerStatement(node);
+ case _tokentype.types._do:
+ return this.parseDoStatement(node);
+ case _tokentype.types._for:
+ return this.parseForStatement(node);
+ case _tokentype.types._function:
+ if (!declaration && this.options.ecmaVersion >= 6) this.unexpected();
+ return this.parseFunctionStatement(node);
+ case _tokentype.types._class:
+ if (!declaration) this.unexpected();
+ return this.parseClass(node, true);
+ case _tokentype.types._if:
+ return this.parseIfStatement(node);
+ case _tokentype.types._return:
+ return this.parseReturnStatement(node);
+ case _tokentype.types._switch:
+ return this.parseSwitchStatement(node);
+ case _tokentype.types._throw:
+ return this.parseThrowStatement(node);
+ case _tokentype.types._try:
+ return this.parseTryStatement(node);
+ case _tokentype.types._let:case _tokentype.types._const:
+ if (!declaration) this.unexpected(); // NOTE: falls through to _var
+ case _tokentype.types._var:
+ return this.parseVarStatement(node, starttype);
+ case _tokentype.types._while:
+ return this.parseWhileStatement(node);
+ case _tokentype.types._with:
+ return this.parseWithStatement(node);
+ case _tokentype.types.braceL:
+ return this.parseBlock();
+ case _tokentype.types.semi:
+ return this.parseEmptyStatement(node);
+ case _tokentype.types._export:
+ case _tokentype.types._import:
+ if (!this.options.allowImportExportEverywhere) {
+ if (!topLevel) this.raise(this.start, "'import' and 'export' may only appear at the top level");
+ if (!this.inModule) this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'");
+ }
+ return starttype === _tokentype.types._import ? this.parseImport(node) : this.parseExport(node);
+
+ // If the statement does not start with a statement keyword or a
+ // brace, it's an ExpressionStatement or LabeledStatement. We
+ // simply start parsing an expression, and afterwards, if the
+ // next token is a colon and the expression was a simple
+ // Identifier node, we switch to interpreting it as a label.
+ default:
+ var maybeName = this.value,
+ expr = this.parseExpression();
+ if (starttype === _tokentype.types.name && expr.type === "Identifier" && this.eat(_tokentype.types.colon)) return this.parseLabeledStatement(node, maybeName, expr);else return this.parseExpressionStatement(node, expr);
+ }
+};
+
+pp.parseBreakContinueStatement = function (node, keyword) {
+ var isBreak = keyword == "break";
+ this.next();
+ if (this.eat(_tokentype.types.semi) || this.insertSemicolon()) node.label = null;else if (this.type !== _tokentype.types.name) this.unexpected();else {
+ node.label = this.parseIdent();
+ this.semicolon();
+ }
+
+ // Verify that there is an actual destination to break or
+ // continue to.
+ for (var i = 0; i < this.labels.length; ++i) {
+ var lab = this.labels[i];
+ if (node.label == null || lab.name === node.label.name) {
+ if (lab.kind != null && (isBreak || lab.kind === "loop")) break;
+ if (node.label && isBreak) break;
+ }
+ }
+ if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword);
+ return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement");
+};
+
+pp.parseDebuggerStatement = function (node) {
+ this.next();
+ this.semicolon();
+ return this.finishNode(node, "DebuggerStatement");
+};
+
+pp.parseDoStatement = function (node) {
+ this.next();
+ this.labels.push(loopLabel);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ this.expect(_tokentype.types._while);
+ node.test = this.parseParenExpression();
+ if (this.options.ecmaVersion >= 6) this.eat(_tokentype.types.semi);else this.semicolon();
+ return this.finishNode(node, "DoWhileStatement");
+};
+
+// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
+// loop is non-trivial. Basically, we have to parse the init `var`
+// statement or expression, disallowing the `in` operator (see
+// the second parameter to `parseExpression`), and then check
+// whether the next token is `in` or `of`. When there is no init
+// part (semicolon immediately after the opening parenthesis), it
+// is a regular `for` loop.
+
+pp.parseForStatement = function (node) {
+ this.next();
+ this.labels.push(loopLabel);
+ this.expect(_tokentype.types.parenL);
+ if (this.type === _tokentype.types.semi) return this.parseFor(node, null);
+ if (this.type === _tokentype.types._var || this.type === _tokentype.types._let || this.type === _tokentype.types._const) {
+ var _init = this.startNode(),
+ varKind = this.type;
+ this.next();
+ this.parseVar(_init, true, varKind);
+ this.finishNode(_init, "VariableDeclaration");
+ if ((this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) && _init.declarations.length === 1 && !(varKind !== _tokentype.types._var && _init.declarations[0].init)) return this.parseForIn(node, _init);
+ return this.parseFor(node, _init);
+ }
+ var refShorthandDefaultPos = { start: 0 };
+ var init = this.parseExpression(true, refShorthandDefaultPos);
+ if (this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) {
+ this.toAssignable(init);
+ this.checkLVal(init);
+ return this.parseForIn(node, init);
+ } else if (refShorthandDefaultPos.start) {
+ this.unexpected(refShorthandDefaultPos.start);
+ }
+ return this.parseFor(node, init);
+};
+
+pp.parseFunctionStatement = function (node) {
+ this.next();
+ return this.parseFunction(node, true);
+};
+
+pp.parseIfStatement = function (node) {
+ this.next();
+ node.test = this.parseParenExpression();
+ node.consequent = this.parseStatement(false);
+ node.alternate = this.eat(_tokentype.types._else) ? this.parseStatement(false) : null;
+ return this.finishNode(node, "IfStatement");
+};
+
+pp.parseReturnStatement = function (node) {
+ if (!this.inFunction && !this.options.allowReturnOutsideFunction) this.raise(this.start, "'return' outside of function");
+ this.next();
+
+ // In `return` (and `break`/`continue`), the keywords with
+ // optional arguments, we eagerly look for a semicolon or the
+ // possibility to insert one.
+
+ if (this.eat(_tokentype.types.semi) || this.insertSemicolon()) node.argument = null;else {
+ node.argument = this.parseExpression();this.semicolon();
+ }
+ return this.finishNode(node, "ReturnStatement");
+};
+
+pp.parseSwitchStatement = function (node) {
+ this.next();
+ node.discriminant = this.parseParenExpression();
+ node.cases = [];
+ this.expect(_tokentype.types.braceL);
+ this.labels.push(switchLabel);
+
+ // Statements under must be grouped (by label) in SwitchCase
+ // nodes. `cur` is used to keep the node that we are currently
+ // adding statements to.
+
+ for (var cur, sawDefault = false; this.type != _tokentype.types.braceR;) {
+ if (this.type === _tokentype.types._case || this.type === _tokentype.types._default) {
+ var isCase = this.type === _tokentype.types._case;
+ if (cur) this.finishNode(cur, "SwitchCase");
+ node.cases.push(cur = this.startNode());
+ cur.consequent = [];
+ this.next();
+ if (isCase) {
+ cur.test = this.parseExpression();
+ } else {
+ if (sawDefault) this.raise(this.lastTokStart, "Multiple default clauses");
+ sawDefault = true;
+ cur.test = null;
+ }
+ this.expect(_tokentype.types.colon);
+ } else {
+ if (!cur) this.unexpected();
+ cur.consequent.push(this.parseStatement(true));
+ }
+ }
+ if (cur) this.finishNode(cur, "SwitchCase");
+ this.next(); // Closing brace
+ this.labels.pop();
+ return this.finishNode(node, "SwitchStatement");
+};
+
+pp.parseThrowStatement = function (node) {
+ this.next();
+ if (_whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) this.raise(this.lastTokEnd, "Illegal newline after throw");
+ node.argument = this.parseExpression();
+ this.semicolon();
+ return this.finishNode(node, "ThrowStatement");
+};
+
+// Reused empty array added for node fields that are always empty.
+
+var empty = [];
+
+pp.parseTryStatement = function (node) {
+ this.next();
+ node.block = this.parseBlock();
+ node.handler = null;
+ if (this.type === _tokentype.types._catch) {
+ var clause = this.startNode();
+ this.next();
+ this.expect(_tokentype.types.parenL);
+ clause.param = this.parseBindingAtom();
+ this.checkLVal(clause.param, true);
+ this.expect(_tokentype.types.parenR);
+ clause.guard = null;
+ clause.body = this.parseBlock();
+ node.handler = this.finishNode(clause, "CatchClause");
+ }
+ node.guardedHandlers = empty;
+ node.finalizer = this.eat(_tokentype.types._finally) ? this.parseBlock() : null;
+ if (!node.handler && !node.finalizer) this.raise(node.start, "Missing catch or finally clause");
+ return this.finishNode(node, "TryStatement");
+};
+
+pp.parseVarStatement = function (node, kind) {
+ this.next();
+ this.parseVar(node, false, kind);
+ this.semicolon();
+ return this.finishNode(node, "VariableDeclaration");
+};
+
+pp.parseWhileStatement = function (node) {
+ this.next();
+ node.test = this.parseParenExpression();
+ this.labels.push(loopLabel);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ return this.finishNode(node, "WhileStatement");
+};
+
+pp.parseWithStatement = function (node) {
+ if (this.strict) this.raise(this.start, "'with' in strict mode");
+ this.next();
+ node.object = this.parseParenExpression();
+ node.body = this.parseStatement(false);
+ return this.finishNode(node, "WithStatement");
+};
+
+pp.parseEmptyStatement = function (node) {
+ this.next();
+ return this.finishNode(node, "EmptyStatement");
+};
+
+pp.parseLabeledStatement = function (node, maybeName, expr) {
+ for (var i = 0; i < this.labels.length; ++i) {
+ if (this.labels[i].name === maybeName) this.raise(expr.start, "Label '" + maybeName + "' is already declared");
+ }var kind = this.type.isLoop ? "loop" : this.type === _tokentype.types._switch ? "switch" : null;
+ for (var i = this.labels.length - 1; i >= 0; i--) {
+ var label = this.labels[i];
+ if (label.statementStart == node.start) {
+ label.statementStart = this.start;
+ label.kind = kind;
+ } else break;
+ }
+ this.labels.push({ name: maybeName, kind: kind, statementStart: this.start });
+ node.body = this.parseStatement(true);
+ this.labels.pop();
+ node.label = expr;
+ return this.finishNode(node, "LabeledStatement");
+};
+
+pp.parseExpressionStatement = function (node, expr) {
+ node.expression = expr;
+ this.semicolon();
+ return this.finishNode(node, "ExpressionStatement");
+};
+
+// Parse a semicolon-enclosed block of statements, handling `"use
+// strict"` declarations when `allowStrict` is true (used for
+// function bodies).
+
+pp.parseBlock = function (allowStrict) {
+ var node = this.startNode(),
+ first = true,
+ oldStrict = undefined;
+ node.body = [];
+ this.expect(_tokentype.types.braceL);
+ while (!this.eat(_tokentype.types.braceR)) {
+ var stmt = this.parseStatement(true);
+ node.body.push(stmt);
+ if (first && allowStrict && this.isUseStrict(stmt)) {
+ oldStrict = this.strict;
+ this.setStrict(this.strict = true);
+ }
+ first = false;
+ }
+ if (oldStrict === false) this.setStrict(false);
+ return this.finishNode(node, "BlockStatement");
+};
+
+// Parse a regular `for` loop. The disambiguation code in
+// `parseStatement` will already have parsed the init statement or
+// expression.
+
+pp.parseFor = function (node, init) {
+ node.init = init;
+ this.expect(_tokentype.types.semi);
+ node.test = this.type === _tokentype.types.semi ? null : this.parseExpression();
+ this.expect(_tokentype.types.semi);
+ node.update = this.type === _tokentype.types.parenR ? null : this.parseExpression();
+ this.expect(_tokentype.types.parenR);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ return this.finishNode(node, "ForStatement");
+};
+
+// Parse a `for`/`in` and `for`/`of` loop, which are almost
+// same from parser's perspective.
+
+pp.parseForIn = function (node, init) {
+ var type = this.type === _tokentype.types._in ? "ForInStatement" : "ForOfStatement";
+ this.next();
+ node.left = init;
+ node.right = this.parseExpression();
+ this.expect(_tokentype.types.parenR);
+ node.body = this.parseStatement(false);
+ this.labels.pop();
+ return this.finishNode(node, type);
+};
+
+// Parse a list of variable declarations.
+
+pp.parseVar = function (node, isFor, kind) {
+ node.declarations = [];
+ node.kind = kind.keyword;
+ for (;;) {
+ var decl = this.startNode();
+ this.parseVarId(decl);
+ if (this.eat(_tokentype.types.eq)) {
+ decl.init = this.parseMaybeAssign(isFor);
+ } else if (kind === _tokentype.types._const && !(this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
+ this.unexpected();
+ } else if (decl.id.type != "Identifier" && !(isFor && (this.type === _tokentype.types._in || this.isContextual("of")))) {
+ this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
+ } else {
+ decl.init = null;
+ }
+ node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
+ if (!this.eat(_tokentype.types.comma)) break;
+ }
+ return node;
+};
+
+pp.parseVarId = function (decl) {
+ decl.id = this.parseBindingAtom();
+ this.checkLVal(decl.id, true);
+};
+
+// Parse a function declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp.parseFunction = function (node, isStatement, allowExpressionBody) {
+ this.initFunction(node);
+ if (this.options.ecmaVersion >= 6) node.generator = this.eat(_tokentype.types.star);
+ if (isStatement || this.type === _tokentype.types.name) node.id = this.parseIdent();
+ this.parseFunctionParams(node);
+ this.parseFunctionBody(node, allowExpressionBody);
+ return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression");
+};
+
+pp.parseFunctionParams = function (node) {
+ this.expect(_tokentype.types.parenL);
+ node.params = this.parseBindingList(_tokentype.types.parenR, false, false);
+};
+
+// Parse a class declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp.parseClass = function (node, isStatement) {
+ this.next();
+ this.parseClassId(node, isStatement);
+ this.parseClassSuper(node);
+ var classBody = this.startNode();
+ var hadConstructor = false;
+ classBody.body = [];
+ this.expect(_tokentype.types.braceL);
+ while (!this.eat(_tokentype.types.braceR)) {
+ if (this.eat(_tokentype.types.semi)) continue;
+ var method = this.startNode();
+ var isGenerator = this.eat(_tokentype.types.star);
+ var isMaybeStatic = this.type === _tokentype.types.name && this.value === "static";
+ this.parsePropertyName(method);
+ method["static"] = isMaybeStatic && this.type !== _tokentype.types.parenL;
+ if (method["static"]) {
+ if (isGenerator) this.unexpected();
+ isGenerator = this.eat(_tokentype.types.star);
+ this.parsePropertyName(method);
+ }
+ method.kind = "method";
+ var isGetSet = false;
+ if (!method.computed) {
+ var key = method.key;
+
+ if (!isGenerator && key.type === "Identifier" && this.type !== _tokentype.types.parenL && (key.name === "get" || key.name === "set")) {
+ isGetSet = true;
+ method.kind = key.name;
+ key = this.parsePropertyName(method);
+ }
+ if (!method["static"] && (key.type === "Identifier" && key.name === "constructor" || key.type === "Literal" && key.value === "constructor")) {
+ if (hadConstructor) this.raise(key.start, "Duplicate constructor in the same class");
+ if (isGetSet) this.raise(key.start, "Constructor can't have get/set modifier");
+ if (isGenerator) this.raise(key.start, "Constructor can't be a generator");
+ method.kind = "constructor";
+ hadConstructor = true;
+ }
+ }
+ this.parseClassMethod(classBody, method, isGenerator);
+ if (isGetSet) {
+ var paramCount = method.kind === "get" ? 0 : 1;
+ if (method.value.params.length !== paramCount) {
+ var start = method.value.start;
+ if (method.kind === "get") this.raise(start, "getter should have no params");else this.raise(start, "setter should have exactly one param");
+ }
+ }
+ }
+ node.body = this.finishNode(classBody, "ClassBody");
+ return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression");
+};
+
+pp.parseClassMethod = function (classBody, method, isGenerator) {
+ method.value = this.parseMethod(isGenerator);
+ classBody.body.push(this.finishNode(method, "MethodDefinition"));
+};
+
+pp.parseClassId = function (node, isStatement) {
+ node.id = this.type === _tokentype.types.name ? this.parseIdent() : isStatement ? this.unexpected() : null;
+};
+
+pp.parseClassSuper = function (node) {
+ node.superClass = this.eat(_tokentype.types._extends) ? this.parseExprSubscripts() : null;
+};
+
+// Parses module export declaration.
+
+pp.parseExport = function (node) {
+ this.next();
+ // export * from '...'
+ if (this.eat(_tokentype.types.star)) {
+ this.expectContextual("from");
+ node.source = this.type === _tokentype.types.string ? this.parseExprAtom() : this.unexpected();
+ this.semicolon();
+ return this.finishNode(node, "ExportAllDeclaration");
+ }
+ if (this.eat(_tokentype.types._default)) {
+ // export default ...
+ var expr = this.parseMaybeAssign();
+ var needsSemi = true;
+ if (expr.type == "FunctionExpression" || expr.type == "ClassExpression") {
+ needsSemi = false;
+ if (expr.id) {
+ expr.type = expr.type == "FunctionExpression" ? "FunctionDeclaration" : "ClassDeclaration";
+ }
+ }
+ node.declaration = expr;
+ if (needsSemi) this.semicolon();
+ return this.finishNode(node, "ExportDefaultDeclaration");
+ }
+ // export var|const|let|function|class ...
+ if (this.shouldParseExportStatement()) {
+ node.declaration = this.parseStatement(true);
+ node.specifiers = [];
+ node.source = null;
+ } else {
+ // export { x, y as z } [from '...']
+ node.declaration = null;
+ node.specifiers = this.parseExportSpecifiers();
+ if (this.eatContextual("from")) {
+ node.source = this.type === _tokentype.types.string ? this.parseExprAtom() : this.unexpected();
+ } else {
+ node.source = null;
+ }
+ this.semicolon();
+ }
+ return this.finishNode(node, "ExportNamedDeclaration");
+};
+
+pp.shouldParseExportStatement = function () {
+ return this.type.keyword;
+};
+
+// Parses a comma-separated list of module exports.
+
+pp.parseExportSpecifiers = function () {
+ var nodes = [],
+ first = true;
+ // export { x, y as z } [from '...']
+ this.expect(_tokentype.types.braceL);
+ while (!this.eat(_tokentype.types.braceR)) {
+ if (!first) {
+ this.expect(_tokentype.types.comma);
+ if (this.afterTrailingComma(_tokentype.types.braceR)) break;
+ } else first = false;
+
+ var node = this.startNode();
+ node.local = this.parseIdent(this.type === _tokentype.types._default);
+ node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local;
+ nodes.push(this.finishNode(node, "ExportSpecifier"));
+ }
+ return nodes;
+};
+
+// Parses import declaration.
+
+pp.parseImport = function (node) {
+ this.next();
+ // import '...'
+ if (this.type === _tokentype.types.string) {
+ node.specifiers = empty;
+ node.source = this.parseExprAtom();
+ } else {
+ node.specifiers = this.parseImportSpecifiers();
+ this.expectContextual("from");
+ node.source = this.type === _tokentype.types.string ? this.parseExprAtom() : this.unexpected();
+ }
+ this.semicolon();
+ return this.finishNode(node, "ImportDeclaration");
+};
+
+// Parses a comma-separated list of module imports.
+
+pp.parseImportSpecifiers = function () {
+ var nodes = [],
+ first = true;
+ if (this.type === _tokentype.types.name) {
+ // import defaultObj, { x, y as z } from '...'
+ var node = this.startNode();
+ node.local = this.parseIdent();
+ this.checkLVal(node.local, true);
+ nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
+ if (!this.eat(_tokentype.types.comma)) return nodes;
+ }
+ if (this.type === _tokentype.types.star) {
+ var node = this.startNode();
+ this.next();
+ this.expectContextual("as");
+ node.local = this.parseIdent();
+ this.checkLVal(node.local, true);
+ nodes.push(this.finishNode(node, "ImportNamespaceSpecifier"));
+ return nodes;
+ }
+ this.expect(_tokentype.types.braceL);
+ while (!this.eat(_tokentype.types.braceR)) {
+ if (!first) {
+ this.expect(_tokentype.types.comma);
+ if (this.afterTrailingComma(_tokentype.types.braceR)) break;
+ } else first = false;
+
+ var node = this.startNode();
+ node.imported = this.parseIdent(true);
+ node.local = this.eatContextual("as") ? this.parseIdent() : node.imported;
+ this.checkLVal(node.local, true);
+ nodes.push(this.finishNode(node, "ImportSpecifier"));
+ }
+ return nodes;
+};
+
+},{"./state":10,"./tokentype":14,"./whitespace":16}],12:[function(_dereq_,module,exports){
+// The algorithm used to determine whether a regexp can appear at a
+// given point in the program is loosely based on sweet.js' approach.
+// See https://github.com/mozilla/sweet.js/wiki/design
+
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _state = _dereq_("./state");
+
+var _tokentype = _dereq_("./tokentype");
+
+var _whitespace = _dereq_("./whitespace");
+
+var TokContext = function TokContext(token, isExpr, preserveSpace, override) {
+ _classCallCheck(this, TokContext);
+
+ this.token = token;
+ this.isExpr = !!isExpr;
+ this.preserveSpace = !!preserveSpace;
+ this.override = override;
+};
+
+exports.TokContext = TokContext;
+var types = {
+ b_stat: new TokContext("{", false),
+ b_expr: new TokContext("{", true),
+ b_tmpl: new TokContext("${", true),
+ p_stat: new TokContext("(", false),
+ p_expr: new TokContext("(", true),
+ q_tmpl: new TokContext("`", true, true, function (p) {
+ return p.readTmplToken();
+ }),
+ f_expr: new TokContext("function", true)
+};
+
+exports.types = types;
+var pp = _state.Parser.prototype;
+
+pp.initialContext = function () {
+ return [types.b_stat];
+};
+
+pp.braceIsBlock = function (prevType) {
+ if (prevType === _tokentype.types.colon) {
+ var _parent = this.curContext();
+ if (_parent === types.b_stat || _parent === types.b_expr) return !_parent.isExpr;
+ }
+ if (prevType === _tokentype.types._return) return _whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.start));
+ if (prevType === _tokentype.types._else || prevType === _tokentype.types.semi || prevType === _tokentype.types.eof || prevType === _tokentype.types.parenR) return true;
+ if (prevType == _tokentype.types.braceL) return this.curContext() === types.b_stat;
+ return !this.exprAllowed;
+};
+
+pp.updateContext = function (prevType) {
+ var update = undefined,
+ type = this.type;
+ if (type.keyword && prevType == _tokentype.types.dot) this.exprAllowed = false;else if (update = type.updateContext) update.call(this, prevType);else this.exprAllowed = type.beforeExpr;
+};
+
+// Token-specific context update code
+
+_tokentype.types.parenR.updateContext = _tokentype.types.braceR.updateContext = function () {
+ if (this.context.length == 1) {
+ this.exprAllowed = true;
+ return;
+ }
+ var out = this.context.pop();
+ if (out === types.b_stat && this.curContext() === types.f_expr) {
+ this.context.pop();
+ this.exprAllowed = false;
+ } else if (out === types.b_tmpl) {
+ this.exprAllowed = true;
+ } else {
+ this.exprAllowed = !out.isExpr;
+ }
+};
+
+_tokentype.types.braceL.updateContext = function (prevType) {
+ this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr);
+ this.exprAllowed = true;
+};
+
+_tokentype.types.dollarBraceL.updateContext = function () {
+ this.context.push(types.b_tmpl);
+ this.exprAllowed = true;
+};
+
+_tokentype.types.parenL.updateContext = function (prevType) {
+ var statementParens = prevType === _tokentype.types._if || prevType === _tokentype.types._for || prevType === _tokentype.types._with || prevType === _tokentype.types._while;
+ this.context.push(statementParens ? types.p_stat : types.p_expr);
+ this.exprAllowed = true;
+};
+
+_tokentype.types.incDec.updateContext = function () {};
+
+_tokentype.types._function.updateContext = function () {
+ if (this.curContext() !== types.b_stat) this.context.push(types.f_expr);
+ this.exprAllowed = false;
+};
+
+_tokentype.types.backQuote.updateContext = function () {
+ if (this.curContext() === types.q_tmpl) this.context.pop();else this.context.push(types.q_tmpl);
+ this.exprAllowed = false;
+};
+
+// tokExprAllowed stays unchanged
+
+},{"./state":10,"./tokentype":14,"./whitespace":16}],13:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _identifier = _dereq_("./identifier");
+
+var _tokentype = _dereq_("./tokentype");
+
+var _state = _dereq_("./state");
+
+var _locutil = _dereq_("./locutil");
+
+var _whitespace = _dereq_("./whitespace");
+
+// Object type used to represent tokens. Note that normally, tokens
+// simply exist as properties on the parser object. This is only
+// used for the onToken callback and the external tokenizer.
+
+var Token = function Token(p) {
+ _classCallCheck(this, Token);
+
+ this.type = p.type;
+ this.value = p.value;
+ this.start = p.start;
+ this.end = p.end;
+ if (p.options.locations) this.loc = new _locutil.SourceLocation(p, p.startLoc, p.endLoc);
+ if (p.options.ranges) this.range = [p.start, p.end];
+};
+
+exports.Token = Token;
+
+// ## Tokenizer
+
+var pp = _state.Parser.prototype;
+
+// Are we running under Rhino?
+var isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]";
+
+// Move to the next token
+
+pp.next = function () {
+ if (this.options.onToken) this.options.onToken(new Token(this));
+
+ this.lastTokEnd = this.end;
+ this.lastTokStart = this.start;
+ this.lastTokEndLoc = this.endLoc;
+ this.lastTokStartLoc = this.startLoc;
+ this.nextToken();
+};
+
+pp.getToken = function () {
+ this.next();
+ return new Token(this);
+};
+
+// If we're in an ES6 environment, make parsers iterable
+if (typeof Symbol !== "undefined") pp[Symbol.iterator] = function () {
+ var self = this;
+ return { next: function next() {
+ var token = self.getToken();
+ return {
+ done: token.type === _tokentype.types.eof,
+ value: token
+ };
+ } };
+};
+
+// Toggle strict mode. Re-reads the next number or string to please
+// pedantic tests (`"use strict"; 010;` should fail).
+
+pp.setStrict = function (strict) {
+ this.strict = strict;
+ if (this.type !== _tokentype.types.num && this.type !== _tokentype.types.string) return;
+ this.pos = this.start;
+ if (this.options.locations) {
+ while (this.pos < this.lineStart) {
+ this.lineStart = this.input.lastIndexOf("\n", this.lineStart - 2) + 1;
+ --this.curLine;
+ }
+ }
+ this.nextToken();
+};
+
+pp.curContext = function () {
+ return this.context[this.context.length - 1];
+};
+
+// Read a single token, updating the parser object's token-related
+// properties.
+
+pp.nextToken = function () {
+ var curContext = this.curContext();
+ if (!curContext || !curContext.preserveSpace) this.skipSpace();
+
+ this.start = this.pos;
+ if (this.options.locations) this.startLoc = this.curPosition();
+ if (this.pos >= this.input.length) return this.finishToken(_tokentype.types.eof);
+
+ if (curContext.override) return curContext.override(this);else this.readToken(this.fullCharCodeAtPos());
+};
+
+pp.readToken = function (code) {
+ // Identifier or keyword. '\uXXXX' sequences are allowed in
+ // identifiers, so '\' also dispatches to that.
+ if (_identifier.isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */) return this.readWord();
+
+ return this.getTokenFromCode(code);
+};
+
+pp.fullCharCodeAtPos = function () {
+ var code = this.input.charCodeAt(this.pos);
+ if (code <= 0xd7ff || code >= 0xe000) return code;
+ var next = this.input.charCodeAt(this.pos + 1);
+ return (code << 10) + next - 0x35fdc00;
+};
+
+pp.skipBlockComment = function () {
+ var startLoc = this.options.onComment && this.curPosition();
+ var start = this.pos,
+ end = this.input.indexOf("*/", this.pos += 2);
+ if (end === -1) this.raise(this.pos - 2, "Unterminated comment");
+ this.pos = end + 2;
+ if (this.options.locations) {
+ _whitespace.lineBreakG.lastIndex = start;
+ var match = undefined;
+ while ((match = _whitespace.lineBreakG.exec(this.input)) && match.index < this.pos) {
+ ++this.curLine;
+ this.lineStart = match.index + match[0].length;
+ }
+ }
+ if (this.options.onComment) this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos, startLoc, this.curPosition());
+};
+
+pp.skipLineComment = function (startSkip) {
+ var start = this.pos;
+ var startLoc = this.options.onComment && this.curPosition();
+ var ch = this.input.charCodeAt(this.pos += startSkip);
+ while (this.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {
+ ++this.pos;
+ ch = this.input.charCodeAt(this.pos);
+ }
+ if (this.options.onComment) this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos, startLoc, this.curPosition());
+};
+
+// Called at the start of the parse and after every token. Skips
+// whitespace and comments, and.
+
+pp.skipSpace = function () {
+ loop: while (this.pos < this.input.length) {
+ var ch = this.input.charCodeAt(this.pos);
+ switch (ch) {
+ case 32:case 160:
+ // ' '
+ ++this.pos;
+ break;
+ case 13:
+ if (this.input.charCodeAt(this.pos + 1) === 10) {
+ ++this.pos;
+ }
+ case 10:case 8232:case 8233:
+ ++this.pos;
+ if (this.options.locations) {
+ ++this.curLine;
+ this.lineStart = this.pos;
+ }
+ break;
+ case 47:
+ // '/'
+ switch (this.input.charCodeAt(this.pos + 1)) {
+ case 42:
+ // '*'
+ this.skipBlockComment();
+ break;
+ case 47:
+ this.skipLineComment(2);
+ break;
+ default:
+ break loop;
+ }
+ break;
+ default:
+ if (ch > 8 && ch < 14 || ch >= 5760 && _whitespace.nonASCIIwhitespace.test(String.fromCharCode(ch))) {
+ ++this.pos;
+ } else {
+ break loop;
+ }
+ }
+ }
+};
+
+// Called at the end of every token. Sets `end`, `val`, and
+// maintains `context` and `exprAllowed`, and skips the space after
+// the token, so that the next one's `start` will point at the
+// right position.
+
+pp.finishToken = function (type, val) {
+ this.end = this.pos;
+ if (this.options.locations) this.endLoc = this.curPosition();
+ var prevType = this.type;
+ this.type = type;
+ this.value = val;
+
+ this.updateContext(prevType);
+};
+
+// ### Token reading
+
+// This is the function that is called to fetch the next token. It
+// is somewhat obscure, because it works in character codes rather
+// than characters, and because operator parsing has been inlined
+// into it.
+//
+// All in the name of speed.
+//
+pp.readToken_dot = function () {
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next >= 48 && next <= 57) return this.readNumber(true);
+ var next2 = this.input.charCodeAt(this.pos + 2);
+ if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) {
+ // 46 = dot '.'
+ this.pos += 3;
+ return this.finishToken(_tokentype.types.ellipsis);
+ } else {
+ ++this.pos;
+ return this.finishToken(_tokentype.types.dot);
+ }
+};
+
+pp.readToken_slash = function () {
+ // '/'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (this.exprAllowed) {
+ ++this.pos;return this.readRegexp();
+ }
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(_tokentype.types.slash, 1);
+};
+
+pp.readToken_mult_modulo = function (code) {
+ // '%*'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(code === 42 ? _tokentype.types.star : _tokentype.types.modulo, 1);
+};
+
+pp.readToken_pipe_amp = function (code) {
+ // '|&'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === code) return this.finishOp(code === 124 ? _tokentype.types.logicalOR : _tokentype.types.logicalAND, 2);
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(code === 124 ? _tokentype.types.bitwiseOR : _tokentype.types.bitwiseAND, 1);
+};
+
+pp.readToken_caret = function () {
+ // '^'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(_tokentype.types.bitwiseXOR, 1);
+};
+
+pp.readToken_plus_min = function (code) {
+ // '+-'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === code) {
+ if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 && _whitespace.lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) {
+ // A `-->` line comment
+ this.skipLineComment(3);
+ this.skipSpace();
+ return this.nextToken();
+ }
+ return this.finishOp(_tokentype.types.incDec, 2);
+ }
+ if (next === 61) return this.finishOp(_tokentype.types.assign, 2);
+ return this.finishOp(_tokentype.types.plusMin, 1);
+};
+
+pp.readToken_lt_gt = function (code) {
+ // '<>'
+ var next = this.input.charCodeAt(this.pos + 1);
+ var size = 1;
+ if (next === code) {
+ size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
+ if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(_tokentype.types.assign, size + 1);
+ return this.finishOp(_tokentype.types.bitShift, size);
+ }
+ if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 && this.input.charCodeAt(this.pos + 3) == 45) {
+ if (this.inModule) this.unexpected();
+ // `<!--`, an XML-style comment that should be interpreted as a line comment
+ this.skipLineComment(4);
+ this.skipSpace();
+ return this.nextToken();
+ }
+ if (next === 61) size = this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2;
+ return this.finishOp(_tokentype.types.relational, size);
+};
+
+pp.readToken_eq_excl = function (code) {
+ // '=!'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 61) return this.finishOp(_tokentype.types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2);
+ if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) {
+ // '=>'
+ this.pos += 2;
+ return this.finishToken(_tokentype.types.arrow);
+ }
+ return this.finishOp(code === 61 ? _tokentype.types.eq : _tokentype.types.prefix, 1);
+};
+
+pp.getTokenFromCode = function (code) {
+ switch (code) {
+ // The interpretation of a dot depends on whether it is followed
+ // by a digit or another two dots.
+ case 46:
+ // '.'
+ return this.readToken_dot();
+
+ // Punctuation tokens.
+ case 40:
+ ++this.pos;return this.finishToken(_tokentype.types.parenL);
+ case 41:
+ ++this.pos;return this.finishToken(_tokentype.types.parenR);
+ case 59:
+ ++this.pos;return this.finishToken(_tokentype.types.semi);
+ case 44:
+ ++this.pos;return this.finishToken(_tokentype.types.comma);
+ case 91:
+ ++this.pos;return this.finishToken(_tokentype.types.bracketL);
+ case 93:
+ ++this.pos;return this.finishToken(_tokentype.types.bracketR);
+ case 123:
+ ++this.pos;return this.finishToken(_tokentype.types.braceL);
+ case 125:
+ ++this.pos;return this.finishToken(_tokentype.types.braceR);
+ case 58:
+ ++this.pos;return this.finishToken(_tokentype.types.colon);
+ case 63:
+ ++this.pos;return this.finishToken(_tokentype.types.question);
+
+ case 96:
+ // '`'
+ if (this.options.ecmaVersion < 6) break;
+ ++this.pos;
+ return this.finishToken(_tokentype.types.backQuote);
+
+ case 48:
+ // '0'
+ var next = this.input.charCodeAt(this.pos + 1);
+ if (next === 120 || next === 88) return this.readRadixNumber(16); // '0x', '0X' - hex number
+ if (this.options.ecmaVersion >= 6) {
+ if (next === 111 || next === 79) return this.readRadixNumber(8); // '0o', '0O' - octal number
+ if (next === 98 || next === 66) return this.readRadixNumber(2); // '0b', '0B' - binary number
+ }
+ // Anything else beginning with a digit is an integer, octal
+ // number, or float.
+ case 49:case 50:case 51:case 52:case 53:case 54:case 55:case 56:case 57:
+ // 1-9
+ return this.readNumber(false);
+
+ // Quotes produce strings.
+ case 34:case 39:
+ // '"', "'"
+ return this.readString(code);
+
+ // Operators are parsed inline in tiny state machines. '=' (61) is
+ // often referred to. `finishOp` simply skips the amount of
+ // characters it is given as second argument, and returns a token
+ // of the type given by its first argument.
+
+ case 47:
+ // '/'
+ return this.readToken_slash();
+
+ case 37:case 42:
+ // '%*'
+ return this.readToken_mult_modulo(code);
+
+ case 124:case 38:
+ // '|&'
+ return this.readToken_pipe_amp(code);
+
+ case 94:
+ // '^'
+ return this.readToken_caret();
+
+ case 43:case 45:
+ // '+-'
+ return this.readToken_plus_min(code);
+
+ case 60:case 62:
+ // '<>'
+ return this.readToken_lt_gt(code);
+
+ case 61:case 33:
+ // '=!'
+ return this.readToken_eq_excl(code);
+
+ case 126:
+ // '~'
+ return this.finishOp(_tokentype.types.prefix, 1);
+ }
+
+ this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
+};
+
+pp.finishOp = function (type, size) {
+ var str = this.input.slice(this.pos, this.pos + size);
+ this.pos += size;
+ return this.finishToken(type, str);
+};
+
+// Parse a regular expression. Some context-awareness is necessary,
+// since a '/' inside a '[]' set does not end the expression.
+
+function tryCreateRegexp(src, flags, throwErrorAt) {
+ try {
+ return new RegExp(src, flags);
+ } catch (e) {
+ if (throwErrorAt !== undefined) {
+ if (e instanceof SyntaxError) this.raise(throwErrorAt, "Error parsing regular expression: " + e.message);
+ this.raise(e);
+ }
+ }
+}
+
+var regexpUnicodeSupport = !!tryCreateRegexp("", "u");
+
+pp.readRegexp = function () {
+ var _this = this;
+
+ var escaped = undefined,
+ inClass = undefined,
+ start = this.pos;
+ for (;;) {
+ if (this.pos >= this.input.length) this.raise(start, "Unterminated regular expression");
+ var ch = this.input.charAt(this.pos);
+ if (_whitespace.lineBreak.test(ch)) this.raise(start, "Unterminated regular expression");
+ if (!escaped) {
+ if (ch === "[") inClass = true;else if (ch === "]" && inClass) inClass = false;else if (ch === "/" && !inClass) break;
+ escaped = ch === "\\";
+ } else escaped = false;
+ ++this.pos;
+ }
+ var content = this.input.slice(start, this.pos);
+ ++this.pos;
+ // Need to use `readWord1` because '\uXXXX' sequences are allowed
+ // here (don't ask).
+ var mods = this.readWord1();
+ var tmp = content;
+ if (mods) {
+ var validFlags = /^[gmsiy]*$/;
+ if (this.options.ecmaVersion >= 6) validFlags = /^[gmsiyu]*$/;
+ if (!validFlags.test(mods)) this.raise(start, "Invalid regular expression flag");
+ if (mods.indexOf("u") >= 0 && !regexpUnicodeSupport) {
+ // Replace each astral symbol and every Unicode escape sequence that
+ // possibly represents an astral symbol or a paired surrogate with a
+ // single ASCII symbol to avoid throwing on regular expressions that
+ // are only valid in combination with the `/u` flag.
+ // Note: replacing with the ASCII symbol `x` might cause false
+ // negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
+ // perfectly valid pattern that is equivalent to `[a-b]`, but it would
+ // be replaced by `[x-b]` which throws an error.
+ tmp = tmp.replace(/\\u\{([0-9a-fA-F]+)\}/g, function (match, code, offset) {
+ code = Number("0x" + code);
+ if (code > 0x10FFFF) _this.raise(start + offset + 3, "Code point out of bounds");
+ return "x";
+ });
+ tmp = tmp.replace(/\\u([a-fA-F0-9]{4})|[\uD800-\uDBFF][\uDC00-\uDFFF]/g, "x");
+ }
+ }
+ // Detect invalid regular expressions.
+ var value = null;
+ // Rhino's regular expression parser is flaky and throws uncatchable exceptions,
+ // so don't do detection if we are running under Rhino
+ if (!isRhino) {
+ tryCreateRegexp(tmp, undefined, start);
+ // Get a regular expression object for this pattern-flag pair, or `null` in
+ // case the current environment doesn't support the flags it uses.
+ value = tryCreateRegexp(content, mods);
+ }
+ return this.finishToken(_tokentype.types.regexp, { pattern: content, flags: mods, value: value });
+};
+
+// Read an integer in the given radix. Return null if zero digits
+// were read, the integer value otherwise. When `len` is given, this
+// will return `null` unless the integer has exactly `len` digits.
+
+pp.readInt = function (radix, len) {
+ var start = this.pos,
+ total = 0;
+ for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
+ var code = this.input.charCodeAt(this.pos),
+ val = undefined;
+ if (code >= 97) val = code - 97 + 10; // a
+ else if (code >= 65) val = code - 65 + 10; // A
+ else if (code >= 48 && code <= 57) val = code - 48; // 0-9
+ else val = Infinity;
+ if (val >= radix) break;
+ ++this.pos;
+ total = total * radix + val;
+ }
+ if (this.pos === start || len != null && this.pos - start !== len) return null;
+
+ return total;
+};
+
+pp.readRadixNumber = function (radix) {
+ this.pos += 2; // 0x
+ var val = this.readInt(radix);
+ if (val == null) this.raise(this.start + 2, "Expected number in radix " + radix);
+ if (_identifier.isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number");
+ return this.finishToken(_tokentype.types.num, val);
+};
+
+// Read an integer, octal integer, or floating-point number.
+
+pp.readNumber = function (startsWithDot) {
+ var start = this.pos,
+ isFloat = false,
+ octal = this.input.charCodeAt(this.pos) === 48;
+ if (!startsWithDot && this.readInt(10) === null) this.raise(start, "Invalid number");
+ var next = this.input.charCodeAt(this.pos);
+ if (next === 46) {
+ // '.'
+ ++this.pos;
+ this.readInt(10);
+ isFloat = true;
+ next = this.input.charCodeAt(this.pos);
+ }
+ if (next === 69 || next === 101) {
+ // 'eE'
+ next = this.input.charCodeAt(++this.pos);
+ if (next === 43 || next === 45) ++this.pos; // '+-'
+ if (this.readInt(10) === null) this.raise(start, "Invalid number");
+ isFloat = true;
+ }
+ if (_identifier.isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number");
+
+ var str = this.input.slice(start, this.pos),
+ val = undefined;
+ if (isFloat) val = parseFloat(str);else if (!octal || str.length === 1) val = parseInt(str, 10);else if (/[89]/.test(str) || this.strict) this.raise(start, "Invalid number");else val = parseInt(str, 8);
+ return this.finishToken(_tokentype.types.num, val);
+};
+
+// Read a string value, interpreting backslash-escapes.
+
+pp.readCodePoint = function () {
+ var ch = this.input.charCodeAt(this.pos),
+ code = undefined;
+
+ if (ch === 123) {
+ if (this.options.ecmaVersion < 6) this.unexpected();
+ var codePos = ++this.pos;
+ code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
+ ++this.pos;
+ if (code > 0x10FFFF) this.raise(codePos, "Code point out of bounds");
+ } else {
+ code = this.readHexChar(4);
+ }
+ return code;
+};
+
+function codePointToString(code) {
+ // UTF-16 Decoding
+ if (code <= 0xFFFF) return String.fromCharCode(code);
+ code -= 0x10000;
+ return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00);
+}
+
+pp.readString = function (quote) {
+ var out = "",
+ chunkStart = ++this.pos;
+ for (;;) {
+ if (this.pos >= this.input.length) this.raise(this.start, "Unterminated string constant");
+ var ch = this.input.charCodeAt(this.pos);
+ if (ch === quote) break;
+ if (ch === 92) {
+ // '\'
+ out += this.input.slice(chunkStart, this.pos);
+ out += this.readEscapedChar(false);
+ chunkStart = this.pos;
+ } else {
+ if (_whitespace.isNewLine(ch)) this.raise(this.start, "Unterminated string constant");
+ ++this.pos;
+ }
+ }
+ out += this.input.slice(chunkStart, this.pos++);
+ return this.finishToken(_tokentype.types.string, out);
+};
+
+// Reads template string tokens.
+
+pp.readTmplToken = function () {
+ var out = "",
+ chunkStart = this.pos;
+ for (;;) {
+ if (this.pos >= this.input.length) this.raise(this.start, "Unterminated template");
+ var ch = this.input.charCodeAt(this.pos);
+ if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) {
+ // '`', '${'
+ if (this.pos === this.start && this.type === _tokentype.types.template) {
+ if (ch === 36) {
+ this.pos += 2;
+ return this.finishToken(_tokentype.types.dollarBraceL);
+ } else {
+ ++this.pos;
+ return this.finishToken(_tokentype.types.backQuote);
+ }
+ }
+ out += this.input.slice(chunkStart, this.pos);
+ return this.finishToken(_tokentype.types.template, out);
+ }
+ if (ch === 92) {
+ // '\'
+ out += this.input.slice(chunkStart, this.pos);
+ out += this.readEscapedChar(true);
+ chunkStart = this.pos;
+ } else if (_whitespace.isNewLine(ch)) {
+ out += this.input.slice(chunkStart, this.pos);
+ ++this.pos;
+ switch (ch) {
+ case 13:
+ if (this.input.charCodeAt(this.pos) === 10) ++this.pos;
+ case 10:
+ out += "\n";
+ break;
+ default:
+ out += String.fromCharCode(ch);
+ break;
+ }
+ if (this.options.locations) {
+ ++this.curLine;
+ this.lineStart = this.pos;
+ }
+ chunkStart = this.pos;
+ } else {
+ ++this.pos;
+ }
+ }
+};
+
+// Used to read escaped characters
+
+pp.readEscapedChar = function (inTemplate) {
+ var ch = this.input.charCodeAt(++this.pos);
+ ++this.pos;
+ switch (ch) {
+ case 110:
+ return "\n"; // 'n' -> '\n'
+ case 114:
+ return "\r"; // 'r' -> '\r'
+ case 120:
+ return String.fromCharCode(this.readHexChar(2)); // 'x'
+ case 117:
+ return codePointToString(this.readCodePoint()); // 'u'
+ case 116:
+ return "\t"; // 't' -> '\t'
+ case 98:
+ return "\b"; // 'b' -> '\b'
+ case 118:
+ return "\u000b"; // 'v' -> '\u000b'
+ case 102:
+ return "\f"; // 'f' -> '\f'
+ case 13:
+ if (this.input.charCodeAt(this.pos) === 10) ++this.pos; // '\r\n'
+ case 10:
+ // ' \n'
+ if (this.options.locations) {
+ this.lineStart = this.pos;++this.curLine;
+ }
+ return "";
+ default:
+ if (ch >= 48 && ch <= 55) {
+ var octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0];
+ var octal = parseInt(octalStr, 8);
+ if (octal > 255) {
+ octalStr = octalStr.slice(0, -1);
+ octal = parseInt(octalStr, 8);
+ }
+ if (octal > 0 && (this.strict || inTemplate)) {
+ this.raise(this.pos - 2, "Octal literal in strict mode");
+ }
+ this.pos += octalStr.length - 1;
+ return String.fromCharCode(octal);
+ }
+ return String.fromCharCode(ch);
+ }
+};
+
+// Used to read character escape sequences ('\x', '\u', '\U').
+
+pp.readHexChar = function (len) {
+ var codePos = this.pos;
+ var n = this.readInt(16, len);
+ if (n === null) this.raise(codePos, "Bad character escape sequence");
+ return n;
+};
+
+// Read an identifier, and return it as a string. Sets `this.containsEsc`
+// to whether the word contained a '\u' escape.
+//
+// Incrementally adds only escaped chars, adding other chunks as-is
+// as a micro-optimization.
+
+pp.readWord1 = function () {
+ this.containsEsc = false;
+ var word = "",
+ first = true,
+ chunkStart = this.pos;
+ var astral = this.options.ecmaVersion >= 6;
+ while (this.pos < this.input.length) {
+ var ch = this.fullCharCodeAtPos();
+ if (_identifier.isIdentifierChar(ch, astral)) {
+ this.pos += ch <= 0xffff ? 1 : 2;
+ } else if (ch === 92) {
+ // "\"
+ this.containsEsc = true;
+ word += this.input.slice(chunkStart, this.pos);
+ var escStart = this.pos;
+ if (this.input.charCodeAt(++this.pos) != 117) // "u"
+ this.raise(this.pos, "Expecting Unicode escape sequence \\uXXXX");
+ ++this.pos;
+ var esc = this.readCodePoint();
+ if (!(first ? _identifier.isIdentifierStart : _identifier.isIdentifierChar)(esc, astral)) this.raise(escStart, "Invalid Unicode escape");
+ word += codePointToString(esc);
+ chunkStart = this.pos;
+ } else {
+ break;
+ }
+ first = false;
+ }
+ return word + this.input.slice(chunkStart, this.pos);
+};
+
+// Read an identifier or keyword token. Will check for reserved
+// words when necessary.
+
+pp.readWord = function () {
+ var word = this.readWord1();
+ var type = _tokentype.types.name;
+ if ((this.options.ecmaVersion >= 6 || !this.containsEsc) && this.isKeyword(word)) type = _tokentype.keywords[word];
+ return this.finishToken(type, word);
+};
+
+},{"./identifier":2,"./locutil":5,"./state":10,"./tokentype":14,"./whitespace":16}],14:[function(_dereq_,module,exports){
+// ## Token types
+
+// The assignment of fine-grained, information-carrying type objects
+// allows the tokenizer to store the information it has about a
+// token in a way that is very cheap for the parser to look up.
+
+// All token type variables start with an underscore, to make them
+// easy to recognize.
+
+// The `beforeExpr` property is used to disambiguate between regular
+// expressions and divisions. It is set on all token types that can
+// be followed by an expression (thus, a slash after them would be a
+// regular expression).
+//
+// `isLoop` marks a keyword as starting a loop, which is important
+// to know when parsing a label, in order to allow or disallow
+// continue jumps to that label.
+
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var TokenType = function TokenType(label) {
+ var conf = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
+
+ _classCallCheck(this, TokenType);
+
+ this.label = label;
+ this.keyword = conf.keyword;
+ this.beforeExpr = !!conf.beforeExpr;
+ this.startsExpr = !!conf.startsExpr;
+ this.isLoop = !!conf.isLoop;
+ this.isAssign = !!conf.isAssign;
+ this.prefix = !!conf.prefix;
+ this.postfix = !!conf.postfix;
+ this.binop = conf.binop || null;
+ this.updateContext = null;
+};
+
+exports.TokenType = TokenType;
+
+function binop(name, prec) {
+ return new TokenType(name, { beforeExpr: true, binop: prec });
+}
+var beforeExpr = { beforeExpr: true },
+ startsExpr = { startsExpr: true };
+
+var types = {
+ num: new TokenType("num", startsExpr),
+ regexp: new TokenType("regexp", startsExpr),
+ string: new TokenType("string", startsExpr),
+ name: new TokenType("name", startsExpr),
+ eof: new TokenType("eof"),
+
+ // Punctuation token types.
+ bracketL: new TokenType("[", { beforeExpr: true, startsExpr: true }),
+ bracketR: new TokenType("]"),
+ braceL: new TokenType("{", { beforeExpr: true, startsExpr: true }),
+ braceR: new TokenType("}"),
+ parenL: new TokenType("(", { beforeExpr: true, startsExpr: true }),
+ parenR: new TokenType(")"),
+ comma: new TokenType(",", beforeExpr),
+ semi: new TokenType(";", beforeExpr),
+ colon: new TokenType(":", beforeExpr),
+ dot: new TokenType("."),
+ question: new TokenType("?", beforeExpr),
+ arrow: new TokenType("=>", beforeExpr),
+ template: new TokenType("template"),
+ ellipsis: new TokenType("...", beforeExpr),
+ backQuote: new TokenType("`", startsExpr),
+ dollarBraceL: new TokenType("${", { beforeExpr: true, startsExpr: true }),
+
+ // Operators. These carry several kinds of properties to help the
+ // parser use them properly (the presence of these properties is
+ // what categorizes them as operators).
+ //
+ // `binop`, when present, specifies that this operator is a binary
+ // operator, and will refer to its precedence.
+ //
+ // `prefix` and `postfix` mark the operator as a prefix or postfix
+ // unary operator.
+ //
+ // `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
+ // binary operators with a very low precedence, that should result
+ // in AssignmentExpression nodes.
+
+ eq: new TokenType("=", { beforeExpr: true, isAssign: true }),
+ assign: new TokenType("_=", { beforeExpr: true, isAssign: true }),
+ incDec: new TokenType("++/--", { prefix: true, postfix: true, startsExpr: true }),
+ prefix: new TokenType("prefix", { beforeExpr: true, prefix: true, startsExpr: true }),
+ logicalOR: binop("||", 1),
+ logicalAND: binop("&&", 2),
+ bitwiseOR: binop("|", 3),
+ bitwiseXOR: binop("^", 4),
+ bitwiseAND: binop("&", 5),
+ equality: binop("==/!=", 6),
+ relational: binop("</>", 7),
+ bitShift: binop("<</>>", 8),
+ plusMin: new TokenType("+/-", { beforeExpr: true, binop: 9, prefix: true, startsExpr: true }),
+ modulo: binop("%", 10),
+ star: binop("*", 10),
+ slash: binop("/", 10)
+};
+
+exports.types = types;
+// Map keyword names to token types.
+
+var keywords = {};
+
+exports.keywords = keywords;
+// Succinct definitions of keyword token types
+function kw(name) {
+ var options = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
+
+ options.keyword = name;
+ keywords[name] = types["_" + name] = new TokenType(name, options);
+}
+
+kw("break");
+kw("case", beforeExpr);
+kw("catch");
+kw("continue");
+kw("debugger");
+kw("default", beforeExpr);
+kw("do", { isLoop: true });
+kw("else", beforeExpr);
+kw("finally");
+kw("for", { isLoop: true });
+kw("function", startsExpr);
+kw("if");
+kw("return", beforeExpr);
+kw("switch");
+kw("throw", beforeExpr);
+kw("try");
+kw("var");
+kw("let");
+kw("const");
+kw("while", { isLoop: true });
+kw("with");
+kw("new", { beforeExpr: true, startsExpr: true });
+kw("this", startsExpr);
+kw("super", startsExpr);
+kw("class");
+kw("extends", beforeExpr);
+kw("export");
+kw("import");
+kw("yield", { beforeExpr: true, startsExpr: true });
+kw("null", startsExpr);
+kw("true", startsExpr);
+kw("false", startsExpr);
+kw("in", { beforeExpr: true, binop: 7 });
+kw("instanceof", { beforeExpr: true, binop: 7 });
+kw("typeof", { beforeExpr: true, prefix: true, startsExpr: true });
+kw("void", { beforeExpr: true, prefix: true, startsExpr: true });
+kw("delete", { beforeExpr: true, prefix: true, startsExpr: true });
+
+},{}],15:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+exports.isArray = isArray;
+exports.has = has;
+
+function isArray(obj) {
+ return Object.prototype.toString.call(obj) === "[object Array]";
+}
+
+// Checks if an object has a property.
+
+function has(obj, propName) {
+ return Object.prototype.hasOwnProperty.call(obj, propName);
+}
+
+},{}],16:[function(_dereq_,module,exports){
+// Matches a whole line break (where CRLF is considered a single
+// line break). Used to count lines.
+
+"use strict";
+
+exports.__esModule = true;
+exports.isNewLine = isNewLine;
+var lineBreak = /\r\n?|\n|\u2028|\u2029/;
+exports.lineBreak = lineBreak;
+var lineBreakG = new RegExp(lineBreak.source, "g");
+
+exports.lineBreakG = lineBreakG;
+
+function isNewLine(code) {
+ return code === 10 || code === 13 || code === 0x2028 || code == 0x2029;
+}
+
+var nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/;
+exports.nonASCIIwhitespace = nonASCIIwhitespace;
+
+},{}]},{},[3])(3)
+});
\ No newline at end of file
diff --git a/dependencies/acorn/acorn_loose.js b/dependencies/acorn/acorn_loose.js
new file mode 100644
index 0000000000000000000000000000000000000000..aef7a0aacd65a50aa95f1a05b680c024abdc3e95
--- /dev/null
+++ b/dependencies/acorn/acorn_loose.js
@@ -0,0 +1,1273 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}(g.acorn || (g.acorn = {})).loose = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
+"use strict";
+
+module.exports = typeof acorn != "undefined" ? acorn : _dereq_("./acorn");
+
+},{}],2:[function(_dereq_,module,exports){
+"use strict";
+
+var _state = _dereq_("./state");
+
+var _parseutil = _dereq_("./parseutil");
+
+var _ = _dereq_("..");
+
+var lp = _state.LooseParser.prototype;
+
+lp.checkLVal = function (expr, binding) {
+ if (!expr) return expr;
+ switch (expr.type) {
+ case "Identifier":
+ return expr;
+
+ case "MemberExpression":
+ return binding ? this.dummyIdent() : expr;
+
+ case "ParenthesizedExpression":
+ expr.expression = this.checkLVal(expr.expression, binding);
+ return expr;
+
+ // FIXME recursively check contents
+ case "ObjectPattern":
+ case "ArrayPattern":
+ case "RestElement":
+ case "AssignmentPattern":
+ if (this.options.ecmaVersion >= 6) return expr;
+
+ default:
+ return this.dummyIdent();
+ }
+};
+
+lp.parseExpression = function (noIn) {
+ var start = this.storeCurrentPos();
+ var expr = this.parseMaybeAssign(noIn);
+ if (this.tok.type === _.tokTypes.comma) {
+ var node = this.startNodeAt(start);
+ node.expressions = [expr];
+ while (this.eat(_.tokTypes.comma)) node.expressions.push(this.parseMaybeAssign(noIn));
+ return this.finishNode(node, "SequenceExpression");
+ }
+ return expr;
+};
+
+lp.parseParenExpression = function () {
+ this.pushCx();
+ this.expect(_.tokTypes.parenL);
+ var val = this.parseExpression();
+ this.popCx();
+ this.expect(_.tokTypes.parenR);
+ return val;
+};
+
+lp.parseMaybeAssign = function (noIn) {
+ var start = this.storeCurrentPos();
+ var left = this.parseMaybeConditional(noIn);
+ if (this.tok.type.isAssign) {
+ var node = this.startNodeAt(start);
+ node.operator = this.tok.value;
+ node.left = this.tok.type === _.tokTypes.eq ? this.toAssignable(left) : this.checkLVal(left);
+ this.next();
+ node.right = this.parseMaybeAssign(noIn);
+ return this.finishNode(node, "AssignmentExpression");
+ }
+ return left;
+};
+
+lp.parseMaybeConditional = function (noIn) {
+ var start = this.storeCurrentPos();
+ var expr = this.parseExprOps(noIn);
+ if (this.eat(_.tokTypes.question)) {
+ var node = this.startNodeAt(start);
+ node.test = expr;
+ node.consequent = this.parseMaybeAssign();
+ node.alternate = this.expect(_.tokTypes.colon) ? this.parseMaybeAssign(noIn) : this.dummyIdent();
+ return this.finishNode(node, "ConditionalExpression");
+ }
+ return expr;
+};
+
+lp.parseExprOps = function (noIn) {
+ var start = this.storeCurrentPos();
+ var indent = this.curIndent,
+ line = this.curLineStart;
+ return this.parseExprOp(this.parseMaybeUnary(noIn), start, -1, noIn, indent, line);
+};
+
+lp.parseExprOp = function (left, start, minPrec, noIn, indent, line) {
+ if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) return left;
+ var prec = this.tok.type.binop;
+ if (prec != null && (!noIn || this.tok.type !== _.tokTypes._in)) {
+ if (prec > minPrec) {
+ var node = this.startNodeAt(start);
+ node.left = left;
+ node.operator = this.tok.value;
+ this.next();
+ if (this.curLineStart != line && this.curIndent < indent && this.tokenStartsLine()) {
+ node.right = this.dummyIdent();
+ } else {
+ var rightStart = this.storeCurrentPos();
+ node.right = this.parseExprOp(this.parseMaybeUnary(noIn), rightStart, prec, noIn, indent, line);
+ }
+ this.finishNode(node, /&&|\|\|/.test(node.operator) ? "LogicalExpression" : "BinaryExpression");
+ return this.parseExprOp(node, start, minPrec, noIn, indent, line);
+ }
+ }
+ return left;
+};
+
+lp.parseMaybeUnary = function (noIn) {
+ if (this.tok.type.prefix) {
+ var node = this.startNode(),
+ update = this.tok.type === _.tokTypes.incDec;
+ node.operator = this.tok.value;
+ node.prefix = true;
+ this.next();
+ node.argument = this.parseMaybeUnary(noIn);
+ if (update) node.argument = this.checkLVal(node.argument);
+ return this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
+ } else if (this.tok.type === _.tokTypes.ellipsis) {
+ var node = this.startNode();
+ this.next();
+ node.argument = this.parseMaybeUnary(noIn);
+ return this.finishNode(node, "SpreadElement");
+ }
+ var start = this.storeCurrentPos();
+ var expr = this.parseExprSubscripts();
+ while (this.tok.type.postfix && !this.canInsertSemicolon()) {
+ var node = this.startNodeAt(start);
+ node.operator = this.tok.value;
+ node.prefix = false;
+ node.argument = this.checkLVal(expr);
+ this.next();
+ expr = this.finishNode(node, "UpdateExpression");
+ }
+ return expr;
+};
+
+lp.parseExprSubscripts = function () {
+ var start = this.storeCurrentPos();
+ return this.parseSubscripts(this.parseExprAtom(), start, false, this.curIndent, this.curLineStart);
+};
+
+lp.parseSubscripts = function (base, start, noCalls, startIndent, line) {
+ for (;;) {
+ if (this.curLineStart != line && this.curIndent <= startIndent && this.tokenStartsLine()) {
+ if (this.tok.type == _.tokTypes.dot && this.curIndent == startIndent) --startIndent;else return base;
+ }
+
+ if (this.eat(_.tokTypes.dot)) {
+ var node = this.startNodeAt(start);
+ node.object = base;
+ if (this.curLineStart != line && this.curIndent <= startIndent && this.tokenStartsLine()) node.property = this.dummyIdent();else node.property = this.parsePropertyAccessor() || this.dummyIdent();
+ node.computed = false;
+ base = this.finishNode(node, "MemberExpression");
+ } else if (this.tok.type == _.tokTypes.bracketL) {
+ this.pushCx();
+ this.next();
+ var node = this.startNodeAt(start);
+ node.object = base;
+ node.property = this.parseExpression();
+ node.computed = true;
+ this.popCx();
+ this.expect(_.tokTypes.bracketR);
+ base = this.finishNode(node, "MemberExpression");
+ } else if (!noCalls && this.tok.type == _.tokTypes.parenL) {
+ var node = this.startNodeAt(start);
+ node.callee = base;
+ node.arguments = this.parseExprList(_.tokTypes.parenR);
+ base = this.finishNode(node, "CallExpression");
+ } else if (this.tok.type == _.tokTypes.backQuote) {
+ var node = this.startNodeAt(start);
+ node.tag = base;
+ node.quasi = this.parseTemplate();
+ base = this.finishNode(node, "TaggedTemplateExpression");
+ } else {
+ return base;
+ }
+ }
+};
+
+lp.parseExprAtom = function () {
+ var node = undefined;
+ switch (this.tok.type) {
+ case _.tokTypes._this:
+ case _.tokTypes._super:
+ var type = this.tok.type === _.tokTypes._this ? "ThisExpression" : "Super";
+ node = this.startNode();
+ this.next();
+ return this.finishNode(node, type);
+
+ case _.tokTypes.name:
+ var start = this.storeCurrentPos();
+ var id = this.parseIdent();
+ return this.eat(_.tokTypes.arrow) ? this.parseArrowExpression(this.startNodeAt(start), [id]) : id;
+
+ case _.tokTypes.regexp:
+ node = this.startNode();
+ var val = this.tok.value;
+ node.regex = { pattern: val.pattern, flags: val.flags };
+ node.value = val.value;
+ node.raw = this.input.slice(this.tok.start, this.tok.end);
+ this.next();
+ return this.finishNode(node, "Literal");
+
+ case _.tokTypes.num:case _.tokTypes.string:
+ node = this.startNode();
+ node.value = this.tok.value;
+ node.raw = this.input.slice(this.tok.start, this.tok.end);
+ this.next();
+ return this.finishNode(node, "Literal");
+
+ case _.tokTypes._null:case _.tokTypes._true:case _.tokTypes._false:
+ node = this.startNode();
+ node.value = this.tok.type === _.tokTypes._null ? null : this.tok.type === _.tokTypes._true;
+ node.raw = this.tok.type.keyword;
+ this.next();
+ return this.finishNode(node, "Literal");
+
+ case _.tokTypes.parenL:
+ var parenStart = this.storeCurrentPos();
+ this.next();
+ var inner = this.parseExpression();
+ this.expect(_.tokTypes.parenR);
+ if (this.eat(_.tokTypes.arrow)) {
+ return this.parseArrowExpression(this.startNodeAt(parenStart), inner.expressions || (_parseutil.isDummy(inner) ? [] : [inner]));
+ }
+ if (this.options.preserveParens) {
+ var par = this.startNodeAt(parenStart);
+ par.expression = inner;
+ inner = this.finishNode(par, "ParenthesizedExpression");
+ }
+ return inner;
+
+ case _.tokTypes.bracketL:
+ node = this.startNode();
+ node.elements = this.parseExprList(_.tokTypes.bracketR, true);
+ return this.finishNode(node, "ArrayExpression");
+
+ case _.tokTypes.braceL:
+ return this.parseObj();
+
+ case _.tokTypes._class:
+ return this.parseClass();
+
+ case _.tokTypes._function:
+ node = this.startNode();
+ this.next();
+ return this.parseFunction(node, false);
+
+ case _.tokTypes._new:
+ return this.parseNew();
+
+ case _.tokTypes._yield:
+ node = this.startNode();
+ this.next();
+ if (this.semicolon() || this.canInsertSemicolon() || this.tok.type != _.tokTypes.star && !this.tok.type.startsExpr) {
+ node.delegate = false;
+ node.argument = null;
+ } else {
+ node.delegate = this.eat(_.tokTypes.star);
+ node.argument = this.parseMaybeAssign();
+ }
+ return this.finishNode(node, "YieldExpression");
+
+ case _.tokTypes.backQuote:
+ return this.parseTemplate();
+
+ default:
+ return this.dummyIdent();
+ }
+};
+
+lp.parseNew = function () {
+ var node = this.startNode(),
+ startIndent = this.curIndent,
+ line = this.curLineStart;
+ var meta = this.parseIdent(true);
+ if (this.options.ecmaVersion >= 6 && this.eat(_.tokTypes.dot)) {
+ node.meta = meta;
+ node.property = this.parseIdent(true);
+ return this.finishNode(node, "MetaProperty");
+ }
+ var start = this.storeCurrentPos();
+ node.callee = this.parseSubscripts(this.parseExprAtom(), start, true, startIndent, line);
+ if (this.tok.type == _.tokTypes.parenL) {
+ node.arguments = this.parseExprList(_.tokTypes.parenR);
+ } else {
+ node.arguments = [];
+ }
+ return this.finishNode(node, "NewExpression");
+};
+
+lp.parseTemplateElement = function () {
+ var elem = this.startNode();
+ elem.value = {
+ raw: this.input.slice(this.tok.start, this.tok.end).replace(/\r\n?/g, "\n"),
+ cooked: this.tok.value
+ };
+ this.next();
+ elem.tail = this.tok.type === _.tokTypes.backQuote;
+ return this.finishNode(elem, "TemplateElement");
+};
+
+lp.parseTemplate = function () {
+ var node = this.startNode();
+ this.next();
+ node.expressions = [];
+ var curElt = this.parseTemplateElement();
+ node.quasis = [curElt];
+ while (!curElt.tail) {
+ this.next();
+ node.expressions.push(this.parseExpression());
+ if (this.expect(_.tokTypes.braceR)) {
+ curElt = this.parseTemplateElement();
+ } else {
+ curElt = this.startNode();
+ curElt.value = { cooked: "", raw: "" };
+ curElt.tail = true;
+ }
+ node.quasis.push(curElt);
+ }
+ this.expect(_.tokTypes.backQuote);
+ return this.finishNode(node, "TemplateLiteral");
+};
+
+lp.parseObj = function () {
+ var node = this.startNode();
+ node.properties = [];
+ this.pushCx();
+ var indent = this.curIndent + 1,
+ line = this.curLineStart;
+ this.eat(_.tokTypes.braceL);
+ if (this.curIndent + 1 < indent) {
+ indent = this.curIndent;line = this.curLineStart;
+ }
+ while (!this.closes(_.tokTypes.braceR, indent, line)) {
+ var prop = this.startNode(),
+ isGenerator = undefined,
+ start = undefined;
+ if (this.options.ecmaVersion >= 6) {
+ start = this.storeCurrentPos();
+ prop.method = false;
+ prop.shorthand = false;
+ isGenerator = this.eat(_.tokTypes.star);
+ }
+ this.parsePropertyName(prop);
+ if (_parseutil.isDummy(prop.key)) {
+ if (_parseutil.isDummy(this.parseMaybeAssign())) this.next();this.eat(_.tokTypes.comma);continue;
+ }
+ if (this.eat(_.tokTypes.colon)) {
+ prop.kind = "init";
+ prop.value = this.parseMaybeAssign();
+ } else if (this.options.ecmaVersion >= 6 && (this.tok.type === _.tokTypes.parenL || this.tok.type === _.tokTypes.braceL)) {
+ prop.kind = "init";
+ prop.method = true;
+ prop.value = this.parseMethod(isGenerator);
+ } else if (this.options.ecmaVersion >= 5 && prop.key.type === "Identifier" && !prop.computed && (prop.key.name === "get" || prop.key.name === "set") && (this.tok.type != _.tokTypes.comma && this.tok.type != _.tokTypes.braceR)) {
+ prop.kind = prop.key.name;
+ this.parsePropertyName(prop);
+ prop.value = this.parseMethod(false);
+ } else {
+ prop.kind = "init";
+ if (this.options.ecmaVersion >= 6) {
+ if (this.eat(_.tokTypes.eq)) {
+ var assign = this.startNodeAt(start);
+ assign.operator = "=";
+ assign.left = prop.key;
+ assign.right = this.parseMaybeAssign();
+ prop.value = this.finishNode(assign, "AssignmentExpression");
+ } else {
+ prop.value = prop.key;
+ }
+ } else {
+ prop.value = this.dummyIdent();
+ }
+ prop.shorthand = true;
+ }
+ node.properties.push(this.finishNode(prop, "Property"));
+ this.eat(_.tokTypes.comma);
+ }
+ this.popCx();
+ if (!this.eat(_.tokTypes.braceR)) {
+ // If there is no closing brace, make the node span to the start
+ // of the next token (this is useful for Tern)
+ this.last.end = this.tok.start;
+ if (this.options.locations) this.last.loc.end = this.tok.loc.start;
+ }
+ return this.finishNode(node, "ObjectExpression");
+};
+
+lp.parsePropertyName = function (prop) {
+ if (this.options.ecmaVersion >= 6) {
+ if (this.eat(_.tokTypes.bracketL)) {
+ prop.computed = true;
+ prop.key = this.parseExpression();
+ this.expect(_.tokTypes.bracketR);
+ return;
+ } else {
+ prop.computed = false;
+ }
+ }
+ var key = this.tok.type === _.tokTypes.num || this.tok.type === _.tokTypes.string ? this.parseExprAtom() : this.parseIdent();
+ prop.key = key || this.dummyIdent();
+};
+
+lp.parsePropertyAccessor = function () {
+ if (this.tok.type === _.tokTypes.name || this.tok.type.keyword) return this.parseIdent();
+};
+
+lp.parseIdent = function () {
+ var name = this.tok.type === _.tokTypes.name ? this.tok.value : this.tok.type.keyword;
+ if (!name) return this.dummyIdent();
+ var node = this.startNode();
+ this.next();
+ node.name = name;
+ return this.finishNode(node, "Identifier");
+};
+
+lp.initFunction = function (node) {
+ node.id = null;
+ node.params = [];
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = false;
+ node.expression = false;
+ }
+};
+
+// Convert existing expression atom to assignable pattern
+// if possible.
+
+lp.toAssignable = function (node, binding) {
+ if (this.options.ecmaVersion >= 6 && node) {
+ switch (node.type) {
+ case "ObjectExpression":
+ node.type = "ObjectPattern";
+ var props = node.properties;
+ for (var i = 0; i < props.length; i++) {
+ this.toAssignable(props[i].value, binding);
+ }break;
+
+ case "ArrayExpression":
+ node.type = "ArrayPattern";
+ this.toAssignableList(node.elements, binding);
+ break;
+
+ case "SpreadElement":
+ node.type = "RestElement";
+ node.argument = this.toAssignable(node.argument, binding);
+ break;
+
+ case "AssignmentExpression":
+ node.type = "AssignmentPattern";
+ delete node.operator;
+ break;
+ }
+ }
+ return this.checkLVal(node, binding);
+};
+
+lp.toAssignableList = function (exprList, binding) {
+ for (var i = 0; i < exprList.length; i++) {
+ exprList[i] = this.toAssignable(exprList[i], binding);
+ }return exprList;
+};
+
+lp.parseFunctionParams = function (params) {
+ params = this.parseExprList(_.tokTypes.parenR);
+ return this.toAssignableList(params, true);
+};
+
+lp.parseMethod = function (isGenerator) {
+ var node = this.startNode();
+ this.initFunction(node);
+ node.params = this.parseFunctionParams();
+ node.generator = isGenerator || false;
+ node.expression = this.options.ecmaVersion >= 6 && this.tok.type !== _.tokTypes.braceL;
+ node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock();
+ return this.finishNode(node, "FunctionExpression");
+};
+
+lp.parseArrowExpression = function (node, params) {
+ this.initFunction(node);
+ node.params = this.toAssignableList(params, true);
+ node.expression = this.tok.type !== _.tokTypes.braceL;
+ node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock();
+ return this.finishNode(node, "ArrowFunctionExpression");
+};
+
+lp.parseExprList = function (close, allowEmpty) {
+ this.pushCx();
+ var indent = this.curIndent,
+ line = this.curLineStart,
+ elts = [];
+ this.next(); // Opening bracket
+ while (!this.closes(close, indent + 1, line)) {
+ if (this.eat(_.tokTypes.comma)) {
+ elts.push(allowEmpty ? null : this.dummyIdent());
+ continue;
+ }
+ var elt = this.parseMaybeAssign();
+ if (_parseutil.isDummy(elt)) {
+ if (this.closes(close, indent, line)) break;
+ this.next();
+ } else {
+ elts.push(elt);
+ }
+ this.eat(_.tokTypes.comma);
+ }
+ this.popCx();
+ if (!this.eat(close)) {
+ // If there is no closing brace, make the node span to the start
+ // of the next token (this is useful for Tern)
+ this.last.end = this.tok.start;
+ if (this.options.locations) this.last.loc.end = this.tok.loc.start;
+ }
+ return elts;
+};
+
+},{"..":1,"./parseutil":4,"./state":5}],3:[function(_dereq_,module,exports){
+// Acorn: Loose parser
+//
+// This module provides an alternative parser (`parse_dammit`) that
+// exposes that same interface as `parse`, but will try to parse
+// anything as JavaScript, repairing syntax error the best it can.
+// There are circumstances in which it will raise an error and give
+// up, but they are very rare. The resulting AST will be a mostly
+// valid JavaScript AST (as per the [Mozilla parser API][api], except
+// that:
+//
+// - Return outside functions is allowed
+//
+// - Label consistency (no conflicts, break only to existing labels)
+// is not enforced.
+//
+// - Bogus Identifier nodes with a name of `"✖"` are inserted whenever
+// the parser got too confused to return anything meaningful.
+//
+// [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API
+//
+// The expected use for this is to *first* try `acorn.parse`, and only
+// if that fails switch to `parse_dammit`. The loose parser might
+// parse badly indented code incorrectly, so **don't** use it as
+// your default parser.
+//
+// Quite a lot of acorn.js is duplicated here. The alternative was to
+// add a *lot* of extra cruft to that file, making it less readable
+// and slower. Copying and editing the code allowed me to make
+// invasive changes and simplifications without creating a complicated
+// tangle.
+
+"use strict";
+
+exports.__esModule = true;
+exports.parse_dammit = parse_dammit;
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj["default"] = obj; return newObj; } }
+
+var _ = _dereq_("..");
+
+var acorn = _interopRequireWildcard(_);
+
+var _state = _dereq_("./state");
+
+_dereq_("./tokenize");
+
+_dereq_("./statement");
+
+_dereq_("./expression");
+
+exports.LooseParser = _state.LooseParser;
+
+acorn.defaultOptions.tabSize = 4;
+
+function parse_dammit(input, options) {
+ var p = new _state.LooseParser(input, options);
+ p.next();
+ return p.parseTopLevel();
+}
+
+acorn.parse_dammit = parse_dammit;
+acorn.LooseParser = _state.LooseParser;
+
+},{"..":1,"./expression":2,"./state":5,"./statement":6,"./tokenize":7}],4:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+exports.isDummy = isDummy;
+
+function isDummy(node) {
+ return node.name == "✖";
+}
+
+},{}],5:[function(_dereq_,module,exports){
+"use strict";
+
+exports.__esModule = true;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var _ = _dereq_("..");
+
+var LooseParser = (function () {
+ function LooseParser(input, options) {
+ _classCallCheck(this, LooseParser);
+
+ this.toks = _.tokenizer(input, options);
+ this.options = this.toks.options;
+ this.input = this.toks.input;
+ this.tok = this.last = { type: _.tokTypes.eof, start: 0, end: 0 };
+ if (this.options.locations) {
+ var here = this.toks.curPosition();
+ this.tok.loc = new _.SourceLocation(this.toks, here, here);
+ }
+ this.ahead = []; // Tokens ahead
+ this.context = []; // Indentation contexted
+ this.curIndent = 0;
+ this.curLineStart = 0;
+ this.nextLineStart = this.lineEnd(this.curLineStart) + 1;
+ }
+
+ LooseParser.prototype.startNode = function startNode() {
+ return new _.Node(this.toks, this.tok.start, this.options.locations ? this.tok.loc.start : null);
+ };
+
+ LooseParser.prototype.storeCurrentPos = function storeCurrentPos() {
+ return this.options.locations ? [this.tok.start, this.tok.loc.start] : this.tok.start;
+ };
+
+ LooseParser.prototype.startNodeAt = function startNodeAt(pos) {
+ if (this.options.locations) {
+ return new _.Node(this.toks, pos[0], pos[1]);
+ } else {
+ return new _.Node(this.toks, pos);
+ }
+ };
+
+ LooseParser.prototype.finishNode = function finishNode(node, type) {
+ node.type = type;
+ node.end = this.last.end;
+ if (this.options.locations) node.loc.end = this.last.loc.end;
+ if (this.options.ranges) node.range[1] = this.last.end;
+ return node;
+ };
+
+ LooseParser.prototype.dummyIdent = function dummyIdent() {
+ var dummy = this.startNode();
+ dummy.name = "✖";
+ return this.finishNode(dummy, "Identifier");
+ };
+
+ LooseParser.prototype.eat = function eat(type) {
+ if (this.tok.type === type) {
+ this.next();
+ return true;
+ } else {
+ return false;
+ }
+ };
+
+ LooseParser.prototype.isContextual = function isContextual(name) {
+ return this.tok.type === _.tokTypes.name && this.tok.value === name;
+ };
+
+ LooseParser.prototype.eatContextual = function eatContextual(name) {
+ return this.tok.value === name && this.eat(_.tokTypes.name);
+ };
+
+ LooseParser.prototype.canInsertSemicolon = function canInsertSemicolon() {
+ return this.tok.type === _.tokTypes.eof || this.tok.type === _.tokTypes.braceR || _.lineBreak.test(this.input.slice(this.last.end, this.tok.start));
+ };
+
+ LooseParser.prototype.semicolon = function semicolon() {
+ return this.eat(_.tokTypes.semi);
+ };
+
+ LooseParser.prototype.expect = function expect(type) {
+ if (this.eat(type)) return true;
+ for (var i = 1; i <= 2; i++) {
+ if (this.lookAhead(i).type == type) {
+ for (var j = 0; j < i; j++) {
+ this.next();
+ }return true;
+ }
+ }
+ };
+
+ LooseParser.prototype.pushCx = function pushCx() {
+ this.context.push(this.curIndent);
+ };
+
+ LooseParser.prototype.popCx = function popCx() {
+ this.curIndent = this.context.pop();
+ };
+
+ LooseParser.prototype.lineEnd = function lineEnd(pos) {
+ while (pos < this.input.length && !_.isNewLine(this.input.charCodeAt(pos))) ++pos;
+ return pos;
+ };
+
+ LooseParser.prototype.indentationAfter = function indentationAfter(pos) {
+ for (var count = 0;; ++pos) {
+ var ch = this.input.charCodeAt(pos);
+ if (ch === 32) ++count;else if (ch === 9) count += this.options.tabSize;else return count;
+ }
+ };
+
+ LooseParser.prototype.closes = function closes(closeTok, indent, line, blockHeuristic) {
+ if (this.tok.type === closeTok || this.tok.type === _.tokTypes.eof) return true;
+ return line != this.curLineStart && this.curIndent < indent && this.tokenStartsLine() && (!blockHeuristic || this.nextLineStart >= this.input.length || this.indentationAfter(this.nextLineStart) < indent);
+ };
+
+ LooseParser.prototype.tokenStartsLine = function tokenStartsLine() {
+ for (var p = this.tok.start - 1; p >= this.curLineStart; --p) {
+ var ch = this.input.charCodeAt(p);
+ if (ch !== 9 && ch !== 32) return false;
+ }
+ return true;
+ };
+
+ return LooseParser;
+})();
+
+exports.LooseParser = LooseParser;
+
+},{"..":1}],6:[function(_dereq_,module,exports){
+"use strict";
+
+var _state = _dereq_("./state");
+
+var _parseutil = _dereq_("./parseutil");
+
+var _ = _dereq_("..");
+
+var lp = _state.LooseParser.prototype;
+
+lp.parseTopLevel = function () {
+ var node = this.startNodeAt(this.options.locations ? [0, _.getLineInfo(this.input, 0)] : 0);
+ node.body = [];
+ while (this.tok.type !== _.tokTypes.eof) node.body.push(this.parseStatement());
+ this.last = this.tok;
+ if (this.options.ecmaVersion >= 6) {
+ node.sourceType = this.options.sourceType;
+ }
+ return this.finishNode(node, "Program");
+};
+
+lp.parseStatement = function () {
+ var starttype = this.tok.type,
+ node = this.startNode();
+
+ switch (starttype) {
+ case _.tokTypes._break:case _.tokTypes._continue:
+ this.next();
+ var isBreak = starttype === _.tokTypes._break;
+ if (this.semicolon() || this.canInsertSemicolon()) {
+ node.label = null;
+ } else {
+ node.label = this.tok.type === _.tokTypes.name ? this.parseIdent() : null;
+ this.semicolon();
+ }
+ return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement");
+
+ case _.tokTypes._debugger:
+ this.next();
+ this.semicolon();
+ return this.finishNode(node, "DebuggerStatement");
+
+ case _.tokTypes._do:
+ this.next();
+ node.body = this.parseStatement();
+ node.test = this.eat(_.tokTypes._while) ? this.parseParenExpression() : this.dummyIdent();
+ this.semicolon();
+ return this.finishNode(node, "DoWhileStatement");
+
+ case _.tokTypes._for:
+ this.next();
+ this.pushCx();
+ this.expect(_.tokTypes.parenL);
+ if (this.tok.type === _.tokTypes.semi) return this.parseFor(node, null);
+ if (this.tok.type === _.tokTypes._var || this.tok.type === _.tokTypes._let || this.tok.type === _.tokTypes._const) {
+ var _init = this.parseVar(true);
+ if (_init.declarations.length === 1 && (this.tok.type === _.tokTypes._in || this.isContextual("of"))) {
+ return this.parseForIn(node, _init);
+ }
+ return this.parseFor(node, _init);
+ }
+ var init = this.parseExpression(true);
+ if (this.tok.type === _.tokTypes._in || this.isContextual("of")) return this.parseForIn(node, this.toAssignable(init));
+ return this.parseFor(node, init);
+
+ case _.tokTypes._function:
+ this.next();
+ return this.parseFunction(node, true);
+
+ case _.tokTypes._if:
+ this.next();
+ node.test = this.parseParenExpression();
+ node.consequent = this.parseStatement();
+ node.alternate = this.eat(_.tokTypes._else) ? this.parseStatement() : null;
+ return this.finishNode(node, "IfStatement");
+
+ case _.tokTypes._return:
+ this.next();
+ if (this.eat(_.tokTypes.semi) || this.canInsertSemicolon()) node.argument = null;else {
+ node.argument = this.parseExpression();this.semicolon();
+ }
+ return this.finishNode(node, "ReturnStatement");
+
+ case _.tokTypes._switch:
+ var blockIndent = this.curIndent,
+ line = this.curLineStart;
+ this.next();
+ node.discriminant = this.parseParenExpression();
+ node.cases = [];
+ this.pushCx();
+ this.expect(_.tokTypes.braceL);
+
+ var cur = undefined;
+ while (!this.closes(_.tokTypes.braceR, blockIndent, line, true)) {
+ if (this.tok.type === _.tokTypes._case || this.tok.type === _.tokTypes._default) {
+ var isCase = this.tok.type === _.tokTypes._case;
+ if (cur) this.finishNode(cur, "SwitchCase");
+ node.cases.push(cur = this.startNode());
+ cur.consequent = [];
+ this.next();
+ if (isCase) cur.test = this.parseExpression();else cur.test = null;
+ this.expect(_.tokTypes.colon);
+ } else {
+ if (!cur) {
+ node.cases.push(cur = this.startNode());
+ cur.consequent = [];
+ cur.test = null;
+ }
+ cur.consequent.push(this.parseStatement());
+ }
+ }
+ if (cur) this.finishNode(cur, "SwitchCase");
+ this.popCx();
+ this.eat(_.tokTypes.braceR);
+ return this.finishNode(node, "SwitchStatement");
+
+ case _.tokTypes._throw:
+ this.next();
+ node.argument = this.parseExpression();
+ this.semicolon();
+ return this.finishNode(node, "ThrowStatement");
+
+ case _.tokTypes._try:
+ this.next();
+ node.block = this.parseBlock();
+ node.handler = null;
+ if (this.tok.type === _.tokTypes._catch) {
+ var clause = this.startNode();
+ this.next();
+ this.expect(_.tokTypes.parenL);
+ clause.param = this.toAssignable(this.parseExprAtom(), true);
+ this.expect(_.tokTypes.parenR);
+ clause.guard = null;
+ clause.body = this.parseBlock();
+ node.handler = this.finishNode(clause, "CatchClause");
+ }
+ node.finalizer = this.eat(_.tokTypes._finally) ? this.parseBlock() : null;
+ if (!node.handler && !node.finalizer) return node.block;
+ return this.finishNode(node, "TryStatement");
+
+ case _.tokTypes._var:
+ case _.tokTypes._let:
+ case _.tokTypes._const:
+ return this.parseVar();
+
+ case _.tokTypes._while:
+ this.next();
+ node.test = this.parseParenExpression();
+ node.body = this.parseStatement();
+ return this.finishNode(node, "WhileStatement");
+
+ case _.tokTypes._with:
+ this.next();
+ node.object = this.parseParenExpression();
+ node.body = this.parseStatement();
+ return this.finishNode(node, "WithStatement");
+
+ case _.tokTypes.braceL:
+ return this.parseBlock();
+
+ case _.tokTypes.semi:
+ this.next();
+ return this.finishNode(node, "EmptyStatement");
+
+ case _.tokTypes._class:
+ return this.parseClass(true);
+
+ case _.tokTypes._import:
+ return this.parseImport();
+
+ case _.tokTypes._export:
+ return this.parseExport();
+
+ default:
+ var expr = this.parseExpression();
+ if (_parseutil.isDummy(expr)) {
+ this.next();
+ if (this.tok.type === _.tokTypes.eof) return this.finishNode(node, "EmptyStatement");
+ return this.parseStatement();
+ } else if (starttype === _.tokTypes.name && expr.type === "Identifier" && this.eat(_.tokTypes.colon)) {
+ node.body = this.parseStatement();
+ node.label = expr;
+ return this.finishNode(node, "LabeledStatement");
+ } else {
+ node.expression = expr;
+ this.semicolon();
+ return this.finishNode(node, "ExpressionStatement");
+ }
+ }
+};
+
+lp.parseBlock = function () {
+ var node = this.startNode();
+ this.pushCx();
+ this.expect(_.tokTypes.braceL);
+ var blockIndent = this.curIndent,
+ line = this.curLineStart;
+ node.body = [];
+ while (!this.closes(_.tokTypes.braceR, blockIndent, line, true)) node.body.push(this.parseStatement());
+ this.popCx();
+ this.eat(_.tokTypes.braceR);
+ return this.finishNode(node, "BlockStatement");
+};
+
+lp.parseFor = function (node, init) {
+ node.init = init;
+ node.test = node.update = null;
+ if (this.eat(_.tokTypes.semi) && this.tok.type !== _.tokTypes.semi) node.test = this.parseExpression();
+ if (this.eat(_.tokTypes.semi) && this.tok.type !== _.tokTypes.parenR) node.update = this.parseExpression();
+ this.popCx();
+ this.expect(_.tokTypes.parenR);
+ node.body = this.parseStatement();
+ return this.finishNode(node, "ForStatement");
+};
+
+lp.parseForIn = function (node, init) {
+ var type = this.tok.type === _.tokTypes._in ? "ForInStatement" : "ForOfStatement";
+ this.next();
+ node.left = init;
+ node.right = this.parseExpression();
+ this.popCx();
+ this.expect(_.tokTypes.parenR);
+ node.body = this.parseStatement();
+ return this.finishNode(node, type);
+};
+
+lp.parseVar = function (noIn) {
+ var node = this.startNode();
+ node.kind = this.tok.type.keyword;
+ this.next();
+ node.declarations = [];
+ do {
+ var decl = this.startNode();
+ decl.id = this.options.ecmaVersion >= 6 ? this.toAssignable(this.parseExprAtom(), true) : this.parseIdent();
+ decl.init = this.eat(_.tokTypes.eq) ? this.parseMaybeAssign(noIn) : null;
+ node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
+ } while (this.eat(_.tokTypes.comma));
+ if (!node.declarations.length) {
+ var decl = this.startNode();
+ decl.id = this.dummyIdent();
+ node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
+ }
+ if (!noIn) this.semicolon();
+ return this.finishNode(node, "VariableDeclaration");
+};
+
+lp.parseClass = function (isStatement) {
+ var node = this.startNode();
+ this.next();
+ if (this.tok.type === _.tokTypes.name) node.id = this.parseIdent();else if (isStatement) node.id = this.dummyIdent();else node.id = null;
+ node.superClass = this.eat(_.tokTypes._extends) ? this.parseExpression() : null;
+ node.body = this.startNode();
+ node.body.body = [];
+ this.pushCx();
+ var indent = this.curIndent + 1,
+ line = this.curLineStart;
+ this.eat(_.tokTypes.braceL);
+ if (this.curIndent + 1 < indent) {
+ indent = this.curIndent;line = this.curLineStart;
+ }
+ while (!this.closes(_.tokTypes.braceR, indent, line)) {
+ if (this.semicolon()) continue;
+ var method = this.startNode(),
+ isGenerator = undefined;
+ if (this.options.ecmaVersion >= 6) {
+ method["static"] = false;
+ isGenerator = this.eat(_.tokTypes.star);
+ }
+ this.parsePropertyName(method);
+ if (_parseutil.isDummy(method.key)) {
+ if (_parseutil.isDummy(this.parseMaybeAssign())) this.next();this.eat(_.tokTypes.comma);continue;
+ }
+ if (method.key.type === "Identifier" && !method.computed && method.key.name === "static" && (this.tok.type != _.tokTypes.parenL && this.tok.type != _.tokTypes.braceL)) {
+ method["static"] = true;
+ isGenerator = this.eat(_.tokTypes.star);
+ this.parsePropertyName(method);
+ } else {
+ method["static"] = false;
+ }
+ if (this.options.ecmaVersion >= 5 && method.key.type === "Identifier" && !method.computed && (method.key.name === "get" || method.key.name === "set") && this.tok.type !== _.tokTypes.parenL && this.tok.type !== _.tokTypes.braceL) {
+ method.kind = method.key.name;
+ this.parsePropertyName(method);
+ method.value = this.parseMethod(false);
+ } else {
+ if (!method.computed && !method["static"] && !isGenerator && (method.key.type === "Identifier" && method.key.name === "constructor" || method.key.type === "Literal" && method.key.value === "constructor")) {
+ method.kind = "constructor";
+ } else {
+ method.kind = "method";
+ }
+ method.value = this.parseMethod(isGenerator);
+ }
+ node.body.body.push(this.finishNode(method, "MethodDefinition"));
+ }
+ this.popCx();
+ if (!this.eat(_.tokTypes.braceR)) {
+ // If there is no closing brace, make the node span to the start
+ // of the next token (this is useful for Tern)
+ this.last.end = this.tok.start;
+ if (this.options.locations) this.last.loc.end = this.tok.loc.start;
+ }
+ this.semicolon();
+ this.finishNode(node.body, "ClassBody");
+ return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression");
+};
+
+lp.parseFunction = function (node, isStatement) {
+ this.initFunction(node);
+ if (this.options.ecmaVersion >= 6) {
+ node.generator = this.eat(_.tokTypes.star);
+ }
+ if (this.tok.type === _.tokTypes.name) node.id = this.parseIdent();else if (isStatement) node.id = this.dummyIdent();
+ node.params = this.parseFunctionParams();
+ node.body = this.parseBlock();
+ return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression");
+};
+
+lp.parseExport = function () {
+ var node = this.startNode();
+ this.next();
+ if (this.eat(_.tokTypes.star)) {
+ node.source = this.eatContextual("from") ? this.parseExprAtom() : null;
+ return this.finishNode(node, "ExportAllDeclaration");
+ }
+ if (this.eat(_.tokTypes._default)) {
+ var expr = this.parseMaybeAssign();
+ if (expr.id) {
+ switch (expr.type) {
+ case "FunctionExpression":
+ expr.type = "FunctionDeclaration";break;
+ case "ClassExpression":
+ expr.type = "ClassDeclaration";break;
+ }
+ }
+ node.declaration = expr;
+ this.semicolon();
+ return this.finishNode(node, "ExportDefaultDeclaration");
+ }
+ if (this.tok.type.keyword) {
+ node.declaration = this.parseStatement();
+ node.specifiers = [];
+ node.source = null;
+ } else {
+ node.declaration = null;
+ node.specifiers = this.parseExportSpecifierList();
+ node.source = this.eatContextual("from") ? this.parseExprAtom() : null;
+ this.semicolon();
+ }
+ return this.finishNode(node, "ExportNamedDeclaration");
+};
+
+lp.parseImport = function () {
+ var node = this.startNode();
+ this.next();
+ if (this.tok.type === _.tokTypes.string) {
+ node.specifiers = [];
+ node.source = this.parseExprAtom();
+ node.kind = "";
+ } else {
+ var elt = undefined;
+ if (this.tok.type === _.tokTypes.name && this.tok.value !== "from") {
+ elt = this.startNode();
+ elt.local = this.parseIdent();
+ this.finishNode(elt, "ImportDefaultSpecifier");
+ this.eat(_.tokTypes.comma);
+ }
+ node.specifiers = this.parseImportSpecifierList();
+ node.source = this.eatContextual("from") ? this.parseExprAtom() : null;
+ if (elt) node.specifiers.unshift(elt);
+ }
+ this.semicolon();
+ return this.finishNode(node, "ImportDeclaration");
+};
+
+lp.parseImportSpecifierList = function () {
+ var elts = [];
+ if (this.tok.type === _.tokTypes.star) {
+ var elt = this.startNode();
+ this.next();
+ if (this.eatContextual("as")) elt.local = this.parseIdent();
+ elts.push(this.finishNode(elt, "ImportNamespaceSpecifier"));
+ } else {
+ var indent = this.curIndent,
+ line = this.curLineStart,
+ continuedLine = this.nextLineStart;
+ this.pushCx();
+ this.eat(_.tokTypes.braceL);
+ if (this.curLineStart > continuedLine) continuedLine = this.curLineStart;
+ while (!this.closes(_.tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+ var elt = this.startNode();
+ if (this.eat(_.tokTypes.star)) {
+ if (this.eatContextual("as")) elt.local = this.parseIdent();
+ this.finishNode(elt, "ImportNamespaceSpecifier");
+ } else {
+ if (this.isContextual("from")) break;
+ elt.imported = this.parseIdent();
+ if (_parseutil.isDummy(elt.imported)) break;
+ elt.local = this.eatContextual("as") ? this.parseIdent() : elt.imported;
+ this.finishNode(elt, "ImportSpecifier");
+ }
+ elts.push(elt);
+ this.eat(_.tokTypes.comma);
+ }
+ this.eat(_.tokTypes.braceR);
+ this.popCx();
+ }
+ return elts;
+};
+
+lp.parseExportSpecifierList = function () {
+ var elts = [];
+ var indent = this.curIndent,
+ line = this.curLineStart,
+ continuedLine = this.nextLineStart;
+ this.pushCx();
+ this.eat(_.tokTypes.braceL);
+ if (this.curLineStart > continuedLine) continuedLine = this.curLineStart;
+ while (!this.closes(_.tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) {
+ if (this.isContextual("from")) break;
+ var elt = this.startNode();
+ elt.local = this.parseIdent();
+ if (_parseutil.isDummy(elt.local)) break;
+ elt.exported = this.eatContextual("as") ? this.parseIdent() : elt.local;
+ this.finishNode(elt, "ExportSpecifier");
+ elts.push(elt);
+ this.eat(_.tokTypes.comma);
+ }
+ this.eat(_.tokTypes.braceR);
+ this.popCx();
+ return elts;
+};
+
+},{"..":1,"./parseutil":4,"./state":5}],7:[function(_dereq_,module,exports){
+"use strict";
+
+var _ = _dereq_("..");
+
+var _state = _dereq_("./state");
+
+var lp = _state.LooseParser.prototype;
+
+function isSpace(ch) {
+ return ch < 14 && ch > 8 || ch === 32 || ch === 160 || _.isNewLine(ch);
+}
+
+lp.next = function () {
+ this.last = this.tok;
+ if (this.ahead.length) this.tok = this.ahead.shift();else this.tok = this.readToken();
+
+ if (this.tok.start >= this.nextLineStart) {
+ while (this.tok.start >= this.nextLineStart) {
+ this.curLineStart = this.nextLineStart;
+ this.nextLineStart = this.lineEnd(this.curLineStart) + 1;
+ }
+ this.curIndent = this.indentationAfter(this.curLineStart);
+ }
+};
+
+lp.readToken = function () {
+ for (;;) {
+ try {
+ this.toks.next();
+ if (this.toks.type === _.tokTypes.dot && this.input.substr(this.toks.end, 1) === "." && this.options.ecmaVersion >= 6) {
+ this.toks.end++;
+ this.toks.type = _.tokTypes.ellipsis;
+ }
+ return new _.Token(this.toks);
+ } catch (e) {
+ if (!(e instanceof SyntaxError)) throw e;
+
+ // Try to skip some text, based on the error message, and then continue
+ var msg = e.message,
+ pos = e.raisedAt,
+ replace = true;
+ if (/unterminated/i.test(msg)) {
+ pos = this.lineEnd(e.pos + 1);
+ if (/string/.test(msg)) {
+ replace = { start: e.pos, end: pos, type: _.tokTypes.string, value: this.input.slice(e.pos + 1, pos) };
+ } else if (/regular expr/i.test(msg)) {
+ var re = this.input.slice(e.pos, pos);
+ try {
+ re = new RegExp(re);
+ } catch (e) {}
+ replace = { start: e.pos, end: pos, type: _.tokTypes.regexp, value: re };
+ } else if (/template/.test(msg)) {
+ replace = { start: e.pos, end: pos,
+ type: _.tokTypes.template,
+ value: this.input.slice(e.pos, pos) };
+ } else {
+ replace = false;
+ }
+ } else if (/invalid (unicode|regexp|number)|expecting unicode|octal literal|is reserved|directly after number|expected number in radix/i.test(msg)) {
+ while (pos < this.input.length && !isSpace(this.input.charCodeAt(pos))) ++pos;
+ } else if (/character escape|expected hexadecimal/i.test(msg)) {
+ while (pos < this.input.length) {
+ var ch = this.input.charCodeAt(pos++);
+ if (ch === 34 || ch === 39 || _.isNewLine(ch)) break;
+ }
+ } else if (/unexpected character/i.test(msg)) {
+ pos++;
+ replace = false;
+ } else if (/regular expression/i.test(msg)) {
+ replace = true;
+ } else {
+ throw e;
+ }
+ this.resetTo(pos);
+ if (replace === true) replace = { start: pos, end: pos, type: _.tokTypes.name, value: "✖" };
+ if (replace) {
+ if (this.options.locations) replace.loc = new _.SourceLocation(this.toks, _.getLineInfo(this.input, replace.start), _.getLineInfo(this.input, replace.end));
+ return replace;
+ }
+ }
+ }
+};
+
+lp.resetTo = function (pos) {
+ this.toks.pos = pos;
+ var ch = this.input.charAt(pos - 1);
+ this.toks.exprAllowed = !ch || /[\[\{\(,;:?\/*=+\-~!|&%^<>]/.test(ch) || /[enwfd]/.test(ch) && /\b(keywords|case|else|return|throw|new|in|(instance|type)of|delete|void)$/.test(this.input.slice(pos - 10, pos));
+
+ if (this.options.locations) {
+ this.toks.curLine = 1;
+ this.toks.lineStart = _.lineBreakG.lastIndex = 0;
+ var match = undefined;
+ while ((match = _.lineBreakG.exec(this.input)) && match.index < pos) {
+ ++this.toks.curLine;
+ this.toks.lineStart = match.index + match[0].length;
+ }
+ }
+};
+
+lp.lookAhead = function (n) {
+ while (n > this.ahead.length) this.ahead.push(this.readToken());
+ return this.ahead[n - 1];
+};
+
+},{"..":1,"./state":5}]},{},[3])(3)
+});
\ No newline at end of file
diff --git a/dependencies/acorn/walk.js b/dependencies/acorn/walk.js
new file mode 100644
index 0000000000000000000000000000000000000000..d3c1784cc4c6567de0fc43071dcca57c8e80363e
--- /dev/null
+++ b/dependencies/acorn/walk.js
@@ -0,0 +1,376 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}(g.acorn || (g.acorn = {})).walk = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
+// AST walker module for Mozilla Parser API compatible trees
+
+// A simple walk is one where you simply specify callbacks to be
+// called on specific nodes. The last two arguments are optional. A
+// simple use would be
+//
+// walk.simple(myTree, {
+// Expression: function(node) { ... }
+// });
+//
+// to do something with all expressions. All Parser API node types
+// can be used to identify node types, as well as Expression,
+// Statement, and ScopeBody, which denote categories of nodes.
+//
+// The base argument can be used to pass a custom (recursive)
+// walker, and state can be used to give this walked an initial
+// state.
+
+"use strict";
+
+exports.__esModule = true;
+exports.simple = simple;
+exports.ancestor = ancestor;
+exports.recursive = recursive;
+exports.findNodeAt = findNodeAt;
+exports.findNodeAround = findNodeAround;
+exports.findNodeAfter = findNodeAfter;
+exports.findNodeBefore = findNodeBefore;
+exports.make = make;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function simple(node, visitors, base, state, override) {
+ if (!base) base = exports.base;(function c(node, st, override) {
+ var type = override || node.type,
+ found = visitors[type];
+ base[type](node, st, c);
+ if (found) found(node, st);
+ })(node, state, override);
+}
+
+// An ancestor walk builds up an array of ancestor nodes (including
+// the current node) and passes them to the callback as the state parameter.
+
+function ancestor(node, visitors, base, state) {
+ if (!base) base = exports.base;
+ if (!state) state = [];(function c(node, st, override) {
+ var type = override || node.type,
+ found = visitors[type];
+ if (node != st[st.length - 1]) {
+ st = st.slice();
+ st.push(node);
+ }
+ base[type](node, st, c);
+ if (found) found(node, st);
+ })(node, state);
+}
+
+// A recursive walk is one where your functions override the default
+// walkers. They can modify and replace the state parameter that's
+// threaded through the walk, and can opt how and whether to walk
+// their child nodes (by calling their third argument on these
+// nodes).
+
+function recursive(node, state, funcs, base, override) {
+ var visitor = funcs ? exports.make(funcs, base) : base;(function c(node, st, override) {
+ visitor[override || node.type](node, st, c);
+ })(node, state, override);
+}
+
+function makeTest(test) {
+ if (typeof test == "string") return function (type) {
+ return type == test;
+ };else if (!test) return function () {
+ return true;
+ };else return test;
+}
+
+var Found = function Found(node, state) {
+ _classCallCheck(this, Found);
+
+ this.node = node;this.state = state;
+};
+
+// Find a node with a given start, end, and type (all are optional,
+// null can be used as wildcard). Returns a {node, state} object, or
+// undefined when it doesn't find a matching node.
+
+function findNodeAt(node, start, end, test, base, state) {
+ test = makeTest(test);
+ if (!base) base = exports.base;
+ try {
+ ;(function c(node, st, override) {
+ var type = override || node.type;
+ if ((start == null || node.start <= start) && (end == null || node.end >= end)) base[type](node, st, c);
+ if ((start == null || node.start == start) && (end == null || node.end == end) && test(type, node)) throw new Found(node, st);
+ })(node, state);
+ } catch (e) {
+ if (e instanceof Found) return e;
+ throw e;
+ }
+}
+
+// Find the innermost node of a given type that contains the given
+// position. Interface similar to findNodeAt.
+
+function findNodeAround(node, pos, test, base, state) {
+ test = makeTest(test);
+ if (!base) base = exports.base;
+ try {
+ ;(function c(node, st, override) {
+ var type = override || node.type;
+ if (node.start > pos || node.end < pos) return;
+ base[type](node, st, c);
+ if (test(type, node)) throw new Found(node, st);
+ })(node, state);
+ } catch (e) {
+ if (e instanceof Found) return e;
+ throw e;
+ }
+}
+
+// Find the outermost matching node after a given position.
+
+function findNodeAfter(node, pos, test, base, state) {
+ test = makeTest(test);
+ if (!base) base = exports.base;
+ try {
+ ;(function c(node, st, override) {
+ if (node.end < pos) return;
+ var type = override || node.type;
+ if (node.start >= pos && test(type, node)) throw new Found(node, st);
+ base[type](node, st, c);
+ })(node, state);
+ } catch (e) {
+ if (e instanceof Found) return e;
+ throw e;
+ }
+}
+
+// Find the outermost matching node before a given position.
+
+function findNodeBefore(node, pos, test, base, state) {
+ test = makeTest(test);
+ if (!base) base = exports.base;
+ var max = undefined;(function c(node, st, override) {
+ if (node.start > pos) return;
+ var type = override || node.type;
+ if (node.end <= pos && (!max || max.node.end < node.end) && test(type, node)) max = new Found(node, st);
+ base[type](node, st, c);
+ })(node, state);
+ return max;
+}
+
+// Used to create a custom walker. Will fill in all missing node
+// type properties with the defaults.
+
+function make(funcs, base) {
+ if (!base) base = exports.base;
+ var visitor = {};
+ for (var type in base) visitor[type] = base[type];
+ for (var type in funcs) visitor[type] = funcs[type];
+ return visitor;
+}
+
+function skipThrough(node, st, c) {
+ c(node, st);
+}
+function ignore(_node, _st, _c) {}
+
+// Node walkers.
+
+var base = {};
+
+exports.base = base;
+base.Program = base.BlockStatement = function (node, st, c) {
+ for (var i = 0; i < node.body.length; ++i) {
+ c(node.body[i], st, "Statement");
+ }
+};
+base.Statement = skipThrough;
+base.EmptyStatement = ignore;
+base.ExpressionStatement = base.ParenthesizedExpression = function (node, st, c) {
+ return c(node.expression, st, "Expression");
+};
+base.IfStatement = function (node, st, c) {
+ c(node.test, st, "Expression");
+ c(node.consequent, st, "Statement");
+ if (node.alternate) c(node.alternate, st, "Statement");
+};
+base.LabeledStatement = function (node, st, c) {
+ return c(node.body, st, "Statement");
+};
+base.BreakStatement = base.ContinueStatement = ignore;
+base.WithStatement = function (node, st, c) {
+ c(node.object, st, "Expression");
+ c(node.body, st, "Statement");
+};
+base.SwitchStatement = function (node, st, c) {
+ c(node.discriminant, st, "Expression");
+ for (var i = 0; i < node.cases.length; ++i) {
+ var cs = node.cases[i];
+ if (cs.test) c(cs.test, st, "Expression");
+ for (var j = 0; j < cs.consequent.length; ++j) {
+ c(cs.consequent[j], st, "Statement");
+ }
+ }
+};
+base.ReturnStatement = base.YieldExpression = function (node, st, c) {
+ if (node.argument) c(node.argument, st, "Expression");
+};
+base.ThrowStatement = base.SpreadElement = function (node, st, c) {
+ return c(node.argument, st, "Expression");
+};
+base.TryStatement = function (node, st, c) {
+ c(node.block, st, "Statement");
+ if (node.handler) {
+ c(node.handler.param, st, "Pattern");
+ c(node.handler.body, st, "ScopeBody");
+ }
+ if (node.finalizer) c(node.finalizer, st, "Statement");
+};
+base.WhileStatement = base.DoWhileStatement = function (node, st, c) {
+ c(node.test, st, "Expression");
+ c(node.body, st, "Statement");
+};
+base.ForStatement = function (node, st, c) {
+ if (node.init) c(node.init, st, "ForInit");
+ if (node.test) c(node.test, st, "Expression");
+ if (node.update) c(node.update, st, "Expression");
+ c(node.body, st, "Statement");
+};
+base.ForInStatement = base.ForOfStatement = function (node, st, c) {
+ c(node.left, st, "ForInit");
+ c(node.right, st, "Expression");
+ c(node.body, st, "Statement");
+};
+base.ForInit = function (node, st, c) {
+ if (node.type == "VariableDeclaration") c(node, st);else c(node, st, "Expression");
+};
+base.DebuggerStatement = ignore;
+
+base.FunctionDeclaration = function (node, st, c) {
+ return c(node, st, "Function");
+};
+base.VariableDeclaration = function (node, st, c) {
+ for (var i = 0; i < node.declarations.length; ++i) {
+ c(node.declarations[i], st);
+ }
+};
+base.VariableDeclarator = function (node, st, c) {
+ c(node.id, st, "Pattern");
+ if (node.init) c(node.init, st, "Expression");
+};
+
+base.Function = function (node, st, c) {
+ if (node.id) c(node.id, st, "Pattern");
+ for (var i = 0; i < node.params.length; i++) {
+ c(node.params[i], st, "Pattern");
+ }c(node.body, st, node.expression ? "ScopeExpression" : "ScopeBody");
+};
+// FIXME drop these node types in next major version
+// (They are awkward, and in ES6 every block can be a scope.)
+base.ScopeBody = function (node, st, c) {
+ return c(node, st, "Statement");
+};
+base.ScopeExpression = function (node, st, c) {
+ return c(node, st, "Expression");
+};
+
+base.Pattern = function (node, st, c) {
+ if (node.type == "Identifier") c(node, st, "VariablePattern");else if (node.type == "MemberExpression") c(node, st, "MemberPattern");else c(node, st);
+};
+base.VariablePattern = ignore;
+base.MemberPattern = skipThrough;
+base.RestElement = function (node, st, c) {
+ return c(node.argument, st, "Pattern");
+};
+base.ArrayPattern = function (node, st, c) {
+ for (var i = 0; i < node.elements.length; ++i) {
+ var elt = node.elements[i];
+ if (elt) c(elt, st, "Pattern");
+ }
+};
+base.ObjectPattern = function (node, st, c) {
+ for (var i = 0; i < node.properties.length; ++i) {
+ c(node.properties[i].value, st, "Pattern");
+ }
+};
+
+base.Expression = skipThrough;
+base.ThisExpression = base.Super = base.MetaProperty = ignore;
+base.ArrayExpression = function (node, st, c) {
+ for (var i = 0; i < node.elements.length; ++i) {
+ var elt = node.elements[i];
+ if (elt) c(elt, st, "Expression");
+ }
+};
+base.ObjectExpression = function (node, st, c) {
+ for (var i = 0; i < node.properties.length; ++i) {
+ c(node.properties[i], st);
+ }
+};
+base.FunctionExpression = base.ArrowFunctionExpression = base.FunctionDeclaration;
+base.SequenceExpression = base.TemplateLiteral = function (node, st, c) {
+ for (var i = 0; i < node.expressions.length; ++i) {
+ c(node.expressions[i], st, "Expression");
+ }
+};
+base.UnaryExpression = base.UpdateExpression = function (node, st, c) {
+ c(node.argument, st, "Expression");
+};
+base.BinaryExpression = base.LogicalExpression = function (node, st, c) {
+ c(node.left, st, "Expression");
+ c(node.right, st, "Expression");
+};
+base.AssignmentExpression = base.AssignmentPattern = function (node, st, c) {
+ c(node.left, st, "Pattern");
+ c(node.right, st, "Expression");
+};
+base.ConditionalExpression = function (node, st, c) {
+ c(node.test, st, "Expression");
+ c(node.consequent, st, "Expression");
+ c(node.alternate, st, "Expression");
+};
+base.NewExpression = base.CallExpression = function (node, st, c) {
+ c(node.callee, st, "Expression");
+ if (node.arguments) for (var i = 0; i < node.arguments.length; ++i) {
+ c(node.arguments[i], st, "Expression");
+ }
+};
+base.MemberExpression = function (node, st, c) {
+ c(node.object, st, "Expression");
+ if (node.computed) c(node.property, st, "Expression");
+};
+base.ExportNamedDeclaration = base.ExportDefaultDeclaration = function (node, st, c) {
+ if (node.declaration) c(node.declaration, st);
+ if (node.source) c(node.source, st, "Expression");
+};
+base.ExportAllDeclaration = function (node, st, c) {
+ c(node.source, st, "Expression");
+};
+base.ImportDeclaration = function (node, st, c) {
+ for (var i = 0; i < node.specifiers.length; i++) {
+ c(node.specifiers[i], st);
+ }c(node.source, st, "Expression");
+};
+base.ImportSpecifier = base.ImportDefaultSpecifier = base.ImportNamespaceSpecifier = base.Identifier = base.Literal = ignore;
+
+base.TaggedTemplateExpression = function (node, st, c) {
+ c(node.tag, st, "Expression");
+ c(node.quasi, st);
+};
+base.ClassDeclaration = base.ClassExpression = function (node, st, c) {
+ return c(node, st, "Class");
+};
+base.Class = function (node, st, c) {
+ if (node.id) c(node.id, st, "Pattern");
+ if (node.superClass) c(node.superClass, st, "Expression");
+ for (var i = 0; i < node.body.body.length; i++) {
+ c(node.body.body[i], st);
+ }
+};
+base.MethodDefinition = base.Property = function (node, st, c) {
+ if (node.computed) c(node.key, st, "Expression");
+ c(node.value, st, "Expression");
+};
+base.ComprehensionExpression = function (node, st, c) {
+ for (var i = 0; i < node.blocks.length; i++) {
+ c(node.blocks[i].right, st, "Expression");
+ }c(node.body, st, "Expression");
+};
+
+},{}]},{},[1])(1)
+});
\ No newline at end of file
diff --git a/js/cam/Cam.js b/js/cam/Cam.js
index 4b41728a9ed1d3076dbcc2a22a074080b2531562..a86eab5c6a483b65ccdd73bceabdc9217c149f72 100644
--- a/js/cam/Cam.js
+++ b/js/cam/Cam.js
@@ -334,7 +334,8 @@ define(['underscore', 'three', 'backbone', 'appState', 'latticeCAM', 'threeModel
originPosition: this.get("originPosition").clone().multiplyScalar(scale),
stockPosition: this.get("stockPosition").clone().multiplyScalar(scale),
rapidSpeeds: new THREE.Vector3(this.get("rapidSpeeds").xy, this.get("rapidSpeeds").xy, this.get("rapidSpeeds").z),
- feedRate: new THREE.Vector3(this.get("feedRate").xy, this.get("feedRate").xy, this.get("feedRate").z)
+ feedRate: new THREE.Vector3(this.get("feedRate").xy, this.get("feedRate").xy, this.get("feedRate").z),
+ units: lattice.get("units")
};
var self = this;
diff --git a/js/cam/assemblers/AssemblerPost.js b/js/cam/assemblers/AssemblerPost.js
index 55d183facd5bef6b8974542b9f03c8c68ceb871b..869c4c55f32fff8a94ac1145989d8d274548a1d4 100644
--- a/js/cam/assemblers/AssemblerPost.js
+++ b/js/cam/assemblers/AssemblerPost.js
@@ -18,6 +18,7 @@ define(['underscore', 'appState', 'lattice', 'cam'], function(_, appState, latti
// safeHeight: 4.5 - height above parts where we start to move slowly
// scale: 1.27 - all positions and speeds are already scaled for you to mm
// stockPosition: THREE.Vector3 - not used for your machine
+// units: mm
this.customFunctionsContext = {
zClearHeight: 8,//height above part to clear during assembly
@@ -27,79 +28,79 @@ define(['underscore', 'appState', 'lattice', 'cam'], function(_, appState, latti
};
this.customHeader = function(exporter, settings, context){
- var data = "";
- data += exporter.setUnits(lattice.get("units"));
- data += this.customHome(exporter, settings, context);
- return data;
- };
+ var data = "";
+ data += exporter.setUnits(settings.units);
+ data += this.customHome(exporter, settings, context);
+ return data;
+};
this.customFooter = function(exporter, settings, context){
- var data = "";
- data += this.customHome(exporter, settings, context);
- return data;
- };
+ var data = "";
+ data += this.customHome(exporter, settings, context);
+ return data;
+};
this.customHome = function(exporter, settings, context){
- var data = "";
- data += exporter.goHome(settings);
- return data;
- };
+ var data = "";
+ data += exporter.goHome(settings);
+ return data;
+};
this.customPickUpStock = function(exporter, settings, context){//not relevant for your assembler
- var data = "";
- return data;
- };
+ var data = "";
+ return data;
+};
this.customChangeZLayer = function(currentIndex, lastIndex, exporter, settings, context){
- var data = "";
- if (lastIndex === null || (currentIndex.z-lastIndex.z)%2 != 0){
- data += exporter.addLine("G0", ["A" + (currentIndex.z%2*0.3125).toFixed(4)], "new layer");
- data += "\n";
- }
- return data;
- };
+ var data = "";
+ if (lastIndex === null || (currentIndex.z-lastIndex.z)%2 != 0){
+ data += exporter.addLine("G0", ["A" + (currentIndex.z%2*0.3125).toFixed(4)], "new layer");
+ data += "\n";
+ }
+ return data;
+};
this.customMoveXY = function(position, lastPosition, index, exporter, settings, context){//already offset for dual heads
- var data = "";
+ var data = "";
- var overshoot = false;
- var overshootPosition = position.clone();
+ var overshoot = false;
+ var overshootPosition = position.clone();
- //always approach from +x +y direction
- if (lastPosition.x < position.x){
- overshoot = true;
- overshootPosition.x += context.blOvershoot;
- }
+ //always approach from +x +y direction
+ if (lastPosition.x < position.x){
+ overshoot = true;
+ overshootPosition.x += context.blOvershoot;
+ }
- if (lastPosition.y < position.y){
- overshoot = true;
- overshootPosition.y += context.blOvershoot;
- }
+ if (lastPosition.y < position.y){
+ overshoot = true;
+ overshootPosition.y += context.blOvershoot;
+ }
- if (overshoot) data += exporter.rapidXY(overshootPosition, settings);
- data += exporter.rapidXY(position, settings);
+ if (overshoot) data += exporter.rapidXY(overshootPosition, settings);
+ data += exporter.rapidXY(position, settings);
- return data;
- };
+ return data;
+};
this.customPlacePart = function(position, index, material, exporter, settings, context){//already offset for dual heads
- var data = "";
- data += exporter.rapidZ(position.z + settings.safeHeight, settings);
- data += exporter.moveZ(position.z - context.zPreload, settings);
+ var data = "";
+ data += exporter.rapidZ(position.z + settings.safeHeight, settings);
+ data += exporter.moveZ(position.z - context.zPreload, settings);
- if (material == "brass") data += exporter.addLine("M3");
- else if (material == "fiberGlass") data += exporter.addLine("M4");
+ if (material == "brass") data += exporter.addLine("M3");
+ else if (material == "fiberGlass") data += exporter.addLine("M4");
- data += exporter.addComment(JSON.stringify(index));
+ data += exporter.addComment(JSON.stringify(index));
- data += exporter.addLine("G4", ["P" + context.stockWait]);
- data += exporter.addLine("M5");
- data += exporter.moveZ(position.z - context.zPreload, settings);//need this line?
+ data += exporter.addLine("G4", ["P" + context.stockWait]);
+ data += exporter.addLine("M5");
+ data += exporter.moveZ(position.z - context.zPreload, settings);//need this line?
- data += exporter.moveZ(position.z + settings.safeHeight, settings);
- data += exporter.rapidZ(position.z + context.zClearHeight, settings);
- return data;
- };
+ data += exporter.moveZ(position.z + settings.safeHeight, settings);
+ data += exporter.rapidZ(position.z + context.zClearHeight, settings);
+ return data;
+};
}
diff --git a/js/main.js b/js/main.js
index a16988a839c1d5fcbc3722e542c46957d94a26af..3b139a8c2bd06214f56ad82ae633cf8a09fbe81d 100644
--- a/js/main.js
+++ b/js/main.js
@@ -16,6 +16,7 @@ require.config({
numeric: '../dependencies/numeric-1.2.6',
codeMirrorJS: '../dependencies/codemirror/javascript',
codeMirror: '../dependencies/codemirror/codemirror',
+ acorn: '../dependencies/acorn/acorn',
//three
three: '../dependencies/three',
diff --git a/js/menus/AssemblerSetupMenuView.js b/js/menus/AssemblerSetupMenuView.js
index d9b451c9c23d197b74ead5c163b24419368cda81..f9b0b5ad82d14f82260496e1fbe954a4cc7daa09 100644
--- a/js/menus/AssemblerSetupMenuView.js
+++ b/js/menus/AssemblerSetupMenuView.js
@@ -31,7 +31,18 @@ define(['jquery', 'underscore', 'menuParent', 'camPlist', 'cam', 'text!assembler
_editMachineCode: function(e){
e.preventDefault();
- console.log("edit code");
+ var codeType = $(e.target).data("name");
+ if (!codeType) return;
+ var js = cam.get("assembler")[codeType];
+ if (js){
+ if (codeType == "customFunctionsContext") js = JSON.stringify(js, null, "\t");
+ require(['globals'], function(globals){
+ globals.scriptView.showWithJS(js, codeType, function(js){
+ console.log("saved");
+ cam.get("assembler")[codeType] = js;
+ });
+ });
+ }
},
_newComponent: function(e){
diff --git a/js/menus/ScriptView.js b/js/menus/ScriptView.js
index f491967e515a72090d1db91f2e9f9ae03a4e8763..4b58be1c62b7578af2f4e66c7b4927571cb1d2af 100644
--- a/js/menus/ScriptView.js
+++ b/js/menus/ScriptView.js
@@ -4,8 +4,8 @@
-define(['jquery', 'underscore', 'backbone', 'appState', 'codeMirror', 'text!menus/templates/ScriptView.html', 'codeMirrorJS'],
- function($, _, Backbone, appState, CodeMirror, template){
+define(['jquery', 'underscore', 'backbone', 'appState', 'codeMirror', 'acorn', 'globals', 'text!menus/templates/ScriptView.html', 'codeMirrorJS'],
+ function($, _, Backbone, appState, CodeMirror, acorn, globals, template){
var ScriptView = Backbone.View.extend({
@@ -15,18 +15,32 @@ define(['jquery', 'underscore', 'backbone', 'appState', 'codeMirror', 'text!menu
events: {
"click #runScript": "_runScript",
"click #saveScript": "_saveScript",
- "click #loadScript": "_loadScript"
+ "click #loadScript": "_loadScript",
+ "click #hideScript": "_hide"
},
initialize: function(){
_.bindAll(this, "render");
+
+ this.script = "write code here.";
+ this.scriptName = "Script";
+ this.saveCallback = null;
+ this.editor = null;
//bind events
// $(document).bind('keydown', {}, this._handleKeyStroke);
this.render();
this.listenTo(this.model, "change:scriptIsVisible", this._setVisibility);
+
+// var string = "function(){console.log('here');}";
+//// console.log(acorn.parse(string));
+// string();
+// eval(string);
+//// console.log(eval(string));
+// console.log(string);
+
},
// _handleKeyStroke: function(e){
@@ -43,11 +57,22 @@ define(['jquery', 'underscore', 'backbone', 'appState', 'codeMirror', 'text!menu
// appState.runScript(globals.codeMirror.getValue());
},
-// _saveScript: function(e){
-// e.preventDefault();
-// // appState.syncScript(globals.codeMirror.getValue());
-// // globals.saveFile(globals.script, "linkageScript", ".js");
-// },
+ _saveScript: function(e){
+ e.preventDefault();
+ if (this.saveCallback){
+ this.script = this.editor.getValue();
+ var js = "js = " + this.script;
+ try{
+ eval(js);
+ this.saveCallback(js);
+ } catch(error){
+ this.render(error.message);
+ }
+// console.log(acorn.parse(js));
+ return;
+ }
+ console.warn("no save callback for this script");
+ },
//
// _loadScript: function(e){
// e.preventDefault();
@@ -69,15 +94,25 @@ define(['jquery', 'underscore', 'backbone', 'appState', 'codeMirror', 'text!menu
_hide: function(){
var width = this.$el.parent().width();
this.$el.animate({left: "-" + width + "px"});
+ this.model.get("scriptIsVisible", false);
},
_show: function(){
this.$el.animate({left: "0"});
+ this.model.get("scriptIsVisible", true);
+ },
+
+ showWithJS: function(js, name, saveCallback){
+ this.script = js;
+ this.scriptName = name || "Script";
+ this.saveCallback = saveCallback;
+ this._show();
+ this.render();
},
- render: function(){
- this.$el.html(this.template({script:"test"}));
- CodeMirror.fromTextArea(document.getElementById("scriptEditor"), {
+ render: function(errorMsg){
+ this.$el.html(this.template({script:this.script, scriptName: this.scriptName, errorMsg:errorMsg}));
+ this.editor = CodeMirror.fromTextArea(document.getElementById("scriptEditor"), {
lineNumbers: true,
mode: "javascript"
});
@@ -88,7 +123,9 @@ define(['jquery', 'underscore', 'backbone', 'appState', 'codeMirror', 'text!menu
});
+ var view = new ScriptView({model: appState});
+ globals.scriptView = view;
- return new ScriptView({model: appState});
+ return view
});
\ No newline at end of file
diff --git a/js/menus/templates/AssemblerSetupMenuView.html b/js/menus/templates/AssemblerSetupMenuView.html
index 5602287771ae83f3c37fb4b176b7eb5e413d8a97..5c87c19b0fe9d55588ad04fed06fc2bfbd7ce5a1 100644
--- a/js/menus/templates/AssemblerSetupMenuView.html
+++ b/js/menus/templates/AssemblerSetupMenuView.html
@@ -18,9 +18,12 @@ Rotation (xyz):
<input data-property="rotation" data-key="z" value="<%= rotation.z %>" placeholder="Z" class="form-control floatInput assembler" type="text"><br/><br/>
Scale: <input data-property="scale" value="<%= scale %>" placeholder="Scale" class="form-control floatInput assembler" type="text"><br/><br/>
Edit Code:<br/><br/>
-Header <a class="editMachineCode" href="#">Edit</a><br/>
-Go Home <a class="editMachineCode" href="#">Edit</a><br/>
-Pick up stock <a class="editMachineCode" href="#">Edit</a><br/>
-Place part <a class="editMachineCode" href="#">Edit</a><br/>
-Footer <a class="editMachineCode" href="#">Edit</a><br/><br/>
+Context Variables <a class="editMachineCode" data-name="customFunctionsContext" href="#">Edit</a><br/>
+Header <a class="editMachineCode" data-name="customHeader" href="#">Edit</a><br/>
+Go Home <a class="editMachineCode" data-name="customHome" href="#">Edit</a><br/>
+<!--Pick up stock <a class="editMachineCode" data-name="customHeader" href="#">Edit</a><br/>-->
+Move XY <a class="editMachineCode" data-name="customMoveXY" href="#">Edit</a><br/>
+Change Z <a class="editMachineCode" data-name="customChangeZLayer" href="#">Edit</a><br/>
+Place part <a class="editMachineCode" data-name="customPlacePart" href="#">Edit</a><br/>
+Footer <a class="editMachineCode" data-name="customFooter" href="#">Edit</a><br/><br/>
<a href="#" id="saveMachineToFiles" class=" btn btn-block btn-lg btn-success">Save Machine Files</a><br/>
diff --git a/js/menus/templates/ScriptView.html b/js/menus/templates/ScriptView.html
index d1cc3247a9315234311c0c44bc5d48b463ca24a9..52df5f3d1088aca1bc264f2d6ea47a1c4e46518c 100644
--- a/js/menus/templates/ScriptView.html
+++ b/js/menus/templates/ScriptView.html
@@ -1,5 +1,15 @@
<!--<div class="col-sm-4"><a href="#" id="loadScript" class=" btn btn-lg btn-block btn-default">Load Script</a></div>-->
<!--<div class="col-sm-4"><a href="#" id="runScript" class=" btn btn-lg btn-block btn-default">Run Script   (CTRL/⌘ + R)</a></div>-->
-Script Name<a href="#" id="saveScript" class=" btn btn-lg btn-default pull-right">Save Script</a><br/><br/>
+<div><%= scriptName %>
+ <div class="pull-right">
+ <a href="#" id="hideScript" class="btn btn-lg btn-default">Hide</a>
+ <a href="#" id="saveScript" class=" btn btn-lg btn-success">Save Script</a>
+ </div>
+</div><br/>
+<% if (errorMsg){ %>
+ <div class="inlineWarning">
+ Error: <%= errorMsg %>
+ </div>
+<% } %>
<!--<br/><br/>-->
<textarea id="scriptEditor"><%= script %></textarea><br/>
\ No newline at end of file