You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@griffin.apache.org by gu...@apache.org on 2018/09/12 08:58:35 UTC
[46/51] [partial] incubator-griffin-site git commit: remove legacy
code
http://git-wip-us.apache.org/repos/asf/incubator-griffin-site/blob/ca1c37a7/node_modules/acorn/dist/acorn.js
----------------------------------------------------------------------
diff --git a/node_modules/acorn/dist/acorn.js b/node_modules/acorn/dist/acorn.js
deleted file mode 100644
index 9419f86..0000000
--- a/node_modules/acorn/dist/acorn.js
+++ /dev/null
@@ -1,3340 +0,0 @@
-(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 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;var 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;
- }
- name = "$" + name;
- var other = propHash[name];
- if (other) {
- 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, refDestructuringErrors) {
- var startPos = this.start,
- startLoc = this.startLoc;
- var expr = this.parseMaybeAssign(noIn, refDestructuringErrors);
- 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, refDestructuringErrors));
- return this.finishNode(node, "SequenceExpression");
- }
- return expr;
-};
-
-// Parse an assignment expression. This includes applications of
-// operators like `+=`.
-
-pp.parseMaybeAssign = function (noIn, refDestructuringErrors, afterLeftParse) {
- if (this.type == _tokentype.types._yield && this.inGenerator) return this.parseYield();
-
- var validateDestructuring = false;
- if (!refDestructuringErrors) {
- refDestructuringErrors = { shorthandAssign: 0, trailingComma: 0 };
- validateDestructuring = true;
- }
- 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, refDestructuringErrors);
- if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc);
- if (this.type.isAssign) {
- if (validateDestructuring) this.checkPatternErrors(refDestructuringErrors, true);
- var node = this.startNodeAt(startPos, startLoc);
- node.operator = this.value;
- node.left = this.type === _tokentype.types.eq ? this.toAssignable(left) : left;
- refDestructuringErrors.shorthandAssign = 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 (validateDestructuring) this.checkExpressionErrors(refDestructuringErrors, true);
- }
- return left;
-};
-
-// Parse a ternary conditional (`?:`) operator.
-
-pp.parseMaybeConditional = function (noIn, refDestructuringErrors) {
- var startPos = this.start,
- startLoc = this.startLoc;
- var expr = this.parseExprOps(noIn, refDestructuringErrors);
- if (this.checkExpressionErrors(refDestructuringErrors)) 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, refDestructuringErrors) {
- var startPos = this.start,
- startLoc = this.startLoc;
- var expr = this.parseMaybeUnary(refDestructuringErrors);
- if (this.checkExpressionErrors(refDestructuringErrors)) 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 (refDestructuringErrors) {
- 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();
- this.checkExpressionErrors(refDestructuringErrors, true);
- 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(refDestructuringErrors);
- if (this.checkExpressionErrors(refDestructuringErrors)) 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 (refDestructuringErrors) {
- var startPos = this.start,
- startLoc = this.startLoc;
- var expr = this.parseExprAtom(refDestructuringErrors);
- var skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")";
- if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) 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 (refDestructuringErrors) {
- 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, refDestructuringErrors);
- return this.finishNode(node, "ArrayExpression");
-
- case _tokentype.types.braceL:
- return this.parseObj(false, refDestructuringErrors);
-
- 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 refDestructuringErrors = { shorthandAssign: 0, trailingComma: 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, refDestructuringErrors, this.parseParenItem));
- }
- }
- var innerEndPos = this.start,
- innerEndLoc = this.startLoc;
- this.expect(_tokentype.types.parenR);
-
- if (canBeArrow && !this.canInsertSemicolon() && this.eat(_tokentype.types.arrow)) {
- this.checkPatternErrors(refDestructuringErrors, true);
- if (innerParenStart) this.unexpected(innerParenStart);
- return this.parseParenArrowList(startPos, startLoc, exprList);
- }
-
- if (!exprList.length) this.unexpected(this.lastTokStart);
- if (spreadStart) this.unexpected(spreadStart);
- this.checkExpressionErrors(refDestructuringErrors, true);
-
- 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 noCalls
-// argument to parseSubscripts to prevent it from consuming the
-// argument list.
-
-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");
- if (!this.inFunction) this.raise(node.start, "new.target can only be used in functions");
- 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, refDestructuringErrors) {
- 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 || refDestructuringErrors) {
- startPos = this.start;
- startLoc = this.startLoc;
- }
- if (!isPattern) isGenerator = this.eat(_tokentype.types.star);
- }
- this.parsePropertyName(prop);
- this.parsePropertyValue(prop, isPattern, isGenerator, startPos, startLoc, refDestructuringErrors);
- 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, refDestructuringErrors) {
- if (this.eat(_tokentype.types.colon)) {
- prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors);
- 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");
- }
- if (prop.kind === "set" && prop.value.params[0].type === "RestElement") this.raise(prop.value.params[0].start, "Setter cannot use rest params");
- } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
- prop.kind = "init";
- if (isPattern) {
- if (this.keywords.test(prop.key.name) || (this.strict ? this.reservedWordsStrictBind : this.reservedWords).test(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 && refDestructuringErrors) {
- if (!refDestructuringErrors.shorthandAssign) refDestructuringErrors.shorthandAssign = 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);
- 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, isArrowFunction) {
- var isExpression = isArrowFunction && 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 oldStrict = this.strict;
- this.strict = true;
- if (node.id) this.checkLVal(node.id, true);
- this.checkParams(node);
- this.strict = oldStrict;
- } else if (isArrowFunction) {
- this.checkParams(node);
- }
-};
-
-// Checks function params for various disallowed patterns such as using "eval"
-// or "arguments" and duplicate parameters.
-
-pp.checkParams = function (node) {
- var nameHash = {};
- for (var i = 0; i < node.params.length; i++) {
- this.checkLVal(node.params[i], true, nameHash);
- }
-};
-
-// 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, refDestructuringErrors) {
- var elts = [],
- first = true;
- while (!this.eat(close)) {
- if (!first) {
- this.expect(_tokentype.types.comma);
- if (this.type === close && refDestructuringErrors && !refDestructuringErrors.trailingComma) {
- refDestructuringErrors.trailingComma = this.lastTokStart;
- }
- 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(refDestructuringErrors);else elt = this.parseMaybeAssign(false, refDestructuringErrors);
- 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.strict ? this.reservedWordsStrict : this.reservedWords).test(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");
-};
-
-},{"./state":10,"./tokentype":14}],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.
-
-// Reserved word lists for various dialects of the language
-
-"use strict";
-
-exports.__esModule = true;
-exports.isIdentifierStart = isIdentifierStart;
-exports.isIdentifierChar = isIdentifierChar;
-var reservedWords = {
- 3: "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: "class enum extends super const export import",
- 6: "enum",
- strict: "implements interface let package private protected public static yield",
- strictBind: "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: ecma5AndLessKeywords,
- 6: 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 `bin/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-�
��ꬨ-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/ternjs/acorn.git
-//
-// Please use the [github bug tracker][ghbt] to report issues.
-//
-// [ghbt]: https://github.com/ternjs/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");
-
-_dereq_("./parseutil");
-
-_dereq_("./statement");
-
-_dereq_("./lval");
-
-_dereq_("./expression");
-
-_dereq_("./location");
-
-exports.Parser = _state.Parser;
-exports.plugins = _state.plugins;
-
-var _options = _dereq_("./options");
-
-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 = "2.7.0";
-
-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 `tokenizer` 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;
-}
-
-// 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.
-
-;
-
-exports.SourceLocation = SourceLocation;
-
-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 _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":
- 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;
- // falls through to AssignmentPattern
- } else {
- this.raise(node.left.end, "Only '=' operator can be used for specifying default value.");
- break;
- }
-
- case "AssignmentPattern":
- if (node.right.type === "YieldExpression") this.raise(node.right.start, "Yield expression cannot be a 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;
- }
-
- if (isBinding && last.type === "RestElement" && last.argument.type !== "Identifier") this.unexpected(last.argument.start);
- }
- 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 (refDestructuringErrors) {
- var node = this.startNode();
- this.next();
- node.argument = this.parseMaybeAssign(refDestructuringErrors);
- return this.finishNode(node, "SpreadElement");
-};
-
-pp.parseRest = function (allowNonIdent) {
- var node = this.startNode();
- this.next();
-
- // RestElement inside of a function parameter must be an identifier
- if (allowNonIdent) node.argument = this.type === _tokentype.types.name ? this.parseIdent() : this.unexpected();else 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, allowNonIdent) {
- 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(allowNonIdent);
- 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.options.ecmaVersion < 6 || !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 && this.reservedWordsStrictBind.test(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");
- 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");
- }
-};
-
-},{"./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];
-}
-
-// Start an AST node, attaching a start offset.
-
-;
-
-exports.Node = Node;
-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 only enforced if ecmaVersion >= 5.
- // Set `allowReserved` to a boolean value to explicitly turn this on
- // an off. When this option has the value "never", reserved words
- // and keywords can also not be used as property names.
- allowReserved: null,
- // 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 tokens returned from `tokenizer().getToken()`. 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 (options.allowReserved == null) options.allowReserved = options.ecmaVersion < 5;
-
- 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");
-};
-
-pp.checkPatternErrors = function (refDestructuringErrors, andThrow) {
- var pos = refDestructuringErrors && refDestructuringErrors.trailingComma;
- if (!andThrow) return !!pos;
- if (pos) this.raise(pos, "Trailing comma is not permitted in destructuring patterns");
-};
-
-pp.checkExpressionErrors = function (refDestructuringErrors, andThrow) {
- var pos = refDestructuringErrors && refDestructuringErrors.shorthandAssign;
- if (!andThrow) return !!pos;
- if (pos) this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns");
-};
-
-},{"./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;
-function keywordRegexp(words) {
- return new RegExp("^(" + words.replace(/ /g, "|") + ")$");
-}
-
-var Parser = (function () {
- function Parser(options, input, startPos) {
- _classCallCheck(this, Parser);
-
- this.options = options = _options.getOptions(options);
- this.sourceFile = options.sourceFile;
- this.keywords = keywordRegexp(_identifier.keywords[options.ecmaVersion >= 6 ? 6 : 5]);
- var reserved = options.allowReserved ? "" : _identifier.reservedWords[options.ecmaVersion] + (options.sourceType == "module" ? " await" : "");
- this.reservedWords = keywordRegexp(reserved);
- var reservedStrict = (reserved ? reserved + " " : "") + _identifier.reservedWords.strict;
- this.reservedWordsStrict = keywordRegexp(reservedStrict);
- this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + _identifier.reservedWords.strictBind);
- 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(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 = 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 && options.allowHashBang && this.input.slice(0, 2) === '#!') this.skipLineComment(2);
- }
-
- // DEPRECATED Kept for backwards compatibility until 3.0 in case a plugin uses them
-
- Parser.prototype.isKeyword = function isKeyword(word) {
- return this.keywords.test(word);
- };
-
- Parser.prototype.isReservedWord = function isReservedWord(word) {
- return this.reservedWords.test(word);
- };
-
- 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 refDestructuringErrors = { shorthandAssign: 0, trailingComma: 0 };
- var init = this.parseExpression(true, refDestructuringErrors);
- if (this.type === _tokentype.types._in || this.options.ecmaVersion >= 6 && this.isContextual("of")) {
- this.checkPatternErrors(refDestructuringErrors, true);
- this.toAssignable(init);
- this.checkLVal(init);
- return this.parseForIn(node, init);
- } else {
- this.checkExpressionErrors(refDestructuringErrors, true);
- }
- 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.body = this.parseBlock();
- node.handler = this.finishNode(clause, "CatchClause");
- }
- 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, true);
-};
-
-// 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");
- }
- if (method.kind === "set" && method.value.params[0].type === "RestElement") this.raise(method.value.params[0].start, "Setter cannot use rest params");
- }
- }
- 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 {
- // check for keywords used as local names
- for (var i = 0; i < node.specifiers.length; i++) {
- if (this.keywords.test(node.specifiers[i].local.name) || this.reservedWords.test(node.specifiers[i].local.name)) {
- this.unexpected(node.specifiers[i].local.start);
- }
- }
-
- 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);
- if (this.eatContextual("as")) {
- node.local = this.parseIdent();
- } else {
- node.local = node.imported;
- if (this.isKeyword(node.local.name)) this.unexpected(node.local.start);
- if (this.reservedWordsStrict.test(node.local.name)) this.raise(node.local.start, "The keyword '" + node.local.name + "' is reserved");
- }
- 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.br
<TRUNCATED>