mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
2227 lines
60 KiB
JavaScript
2227 lines
60 KiB
JavaScript
/* -*- Mode: javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const Ci = Components.interfaces;
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const Cu = Components.utils;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this,
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"Reflect", "resource://gre/modules/reflect.jsm");
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this.EXPORTED_SYMBOLS = ["Parser"];
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/**
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* A JS parser using the reflection API.
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*/
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this.Parser = function Parser() {
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this._cache = new Map();
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};
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Parser.prototype = {
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/**
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* Gets a collection of parser methods for a specified source.
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*
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* @param string aUrl [optional]
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* The source url. The AST nodes will be cached, so you can use this
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* identifier to avoid parsing the whole source again.
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* @param string aSource
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* The source text content.
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*/
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get: function P_get(aUrl, aSource) {
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// Try to use the cached AST nodes, to avoid useless parsing operations.
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if (this._cache.has(aUrl)) {
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return this._cache.get(aUrl);
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}
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// The source may not necessarily be JS, in which case we need to extract
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// all the scripts. Fastest/easiest way is with a regular expression.
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// Don't worry, the rules of using a <script> tag are really strict,
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// this will work.
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let regexp = /<script[^>]*>([^]*?)<\/script\s*>/gim;
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let syntaxTrees = [];
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let scriptMatches = [];
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let scriptMatch;
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if (aSource.match(/^\s*</)) {
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// First non whitespace character is <, so most definitely HTML.
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while (scriptMatch = regexp.exec(aSource)) {
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scriptMatches.push(scriptMatch[1]); // Contents are captured at index 1.
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}
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}
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// If there are no script matches, send the whole source directly to the
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// reflection API to generate the AST nodes.
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if (!scriptMatches.length) {
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// Reflect.parse throws when encounters a syntax error.
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try {
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let nodes = Reflect.parse(aSource);
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let length = aSource.length;
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syntaxTrees.push(new SyntaxTree(nodes, aUrl, length));
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} catch (e) {
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log(aUrl, e);
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}
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}
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// Generate the AST nodes for each script.
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else {
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for (let script of scriptMatches) {
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// Reflect.parse throws when encounters a syntax error.
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try {
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let nodes = Reflect.parse(script);
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let offset = aSource.indexOf(script);
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let length = script.length;
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syntaxTrees.push(new SyntaxTree(nodes, aUrl, length, offset));
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} catch (e) {
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log(aUrl, e);
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}
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}
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}
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let pool = new SyntaxTreesPool(syntaxTrees);
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this._cache.set(aUrl, pool);
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return pool;
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},
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/**
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* Clears all the parsed sources from cache.
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*/
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clearCache: function P_clearCache() {
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this._cache = new Map();
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},
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_cache: null
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};
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/**
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* A pool handling a collection of AST nodes generated by the reflection API.
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*
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* @param object aSyntaxTrees
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* A collection of AST nodes generated for a source.
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*/
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function SyntaxTreesPool(aSyntaxTrees) {
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this._trees = aSyntaxTrees;
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this._cache = new Map();
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}
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SyntaxTreesPool.prototype = {
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/**
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* @see SyntaxTree.prototype.getNamedFunctionDefinitions
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*/
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getNamedFunctionDefinitions: function STP_getNamedFunctionDefinitions(aSubstring) {
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return this._call("getNamedFunctionDefinitions", aSubstring);
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},
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/**
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* @see SyntaxTree.prototype.getFunctionAtLocation
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*/
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getFunctionAtLocation: function STP_getFunctionAtLocation(aLine, aColumn) {
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return this._call("getFunctionAtLocation", [aLine, aColumn]);
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},
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/**
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* Finds the offset and length of the script containing the specified offset
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* relative to its parent source.
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*
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* @param number aOffset
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* The offset relative to the parent source.
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* @return array
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* The offset and length relative to the enclosing script.
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*/
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getScriptInfo: function STP_getScriptInfo(aOffset) {
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for (let { offset, length } of this._trees) {
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if (offset <= aOffset && offset + length >= aOffset) {
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return [offset, length];
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}
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}
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return [-1, -1];
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},
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/**
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* Handles a request for all known syntax trees.
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*
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* @param string aFunction
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* The function name to call on the SyntaxTree instances.
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* @param any aParams
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* Any kind params to pass to the request function.
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* @return array
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* The results given by all known syntax trees.
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*/
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_call: function STP__call(aFunction, aParams) {
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let results = [];
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let requestId = aFunction + aParams; // Cache all the things!
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if (this._cache.has(requestId)) {
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return this._cache.get(requestId);
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}
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for (let syntaxTree of this._trees) {
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try {
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results.push({
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sourceUrl: syntaxTree.url,
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scriptLength: syntaxTree.length,
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scriptOffset: syntaxTree.offset,
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parseResults: syntaxTree[aFunction](aParams)
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});
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} catch (e) {
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// Can't guarantee that the tree traversal logic is forever perfect :)
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// Language features may be added, in which case the recursive methods
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// need to be updated. If an exception is thrown here, file a bug.
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log("syntax tree", e);
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}
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}
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this._cache.set(requestId, results);
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return results;
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},
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_trees: null,
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_cache: null
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};
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/**
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* A collection of AST nodes generated by the reflection API.
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*
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* @param object aNodes
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* The AST nodes.
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* @param string aUrl
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* The source url.
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* @param number aLength
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* The total number of chars of the parsed script in the parent source.
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* @param number aOffset [optional]
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* The char offset of the parsed script in the parent source.
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*/
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function SyntaxTree(aNodes, aUrl, aLength, aOffset = 0) {
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this.AST = aNodes;
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this.url = aUrl;
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this.length = aLength;
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this.offset = aOffset;
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};
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SyntaxTree.prototype = {
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/**
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* Searches for all function definitions (declarations and expressions)
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* whose names (or inferred names) contain a string.
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*
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* @param string aSubstring
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* The string to be contained in the function name (or inferred name).
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* Can be an empty string to match all functions.
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* @return array
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* All the matching function declarations and expressions, as
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* { functionName, functionLocation ... } object hashes.
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*/
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getNamedFunctionDefinitions: function ST_getNamedFunctionDefinitions(aSubstring) {
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let lowerCaseToken = aSubstring.toLowerCase();
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let store = [];
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SyntaxTreeVisitor.walk(this.AST, {
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/**
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* Callback invoked for each function declaration node.
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* @param Node aNode
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*/
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onFunctionDeclaration: function STW_onFunctionDeclaration(aNode) {
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let functionName = aNode.id.name;
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if (functionName.toLowerCase().contains(lowerCaseToken)) {
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store.push({
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functionName: functionName,
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functionLocation: aNode.loc
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});
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}
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},
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/**
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* Callback invoked for each function expression node.
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* @param Node aNode
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*/
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onFunctionExpression: function STW_onFunctionExpression(aNode) {
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let parent = aNode._parent;
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let functionName, inferredName, inferredChain, inferredLocation;
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// Function expressions don't necessarily have a name.
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if (aNode.id) {
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functionName = aNode.id.name;
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}
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// Infer the function's name from an enclosing syntax tree node.
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if (parent) {
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let inferredInfo = ParserHelpers.inferFunctionExpressionInfo(aNode);
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inferredName = inferredInfo.name;
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inferredChain = inferredInfo.chain;
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inferredLocation = inferredInfo.loc;
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}
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// Current node may be part of a larger assignment expression stack.
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if (parent.type == "AssignmentExpression") {
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this.onFunctionExpression(parent);
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}
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if ((functionName && functionName.toLowerCase().contains(lowerCaseToken)) ||
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(inferredName && inferredName.toLowerCase().contains(lowerCaseToken))) {
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store.push({
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functionName: functionName,
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functionLocation: aNode.loc,
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inferredName: inferredName,
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inferredChain: inferredChain,
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inferredLocation: inferredLocation
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});
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}
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}
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});
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return store;
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},
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/**
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* Gets the "new" or "call" expression at the specified location.
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*
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* @param number aLine
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* The line in the source.
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* @param number aColumn
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* The column in the source.
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* @return object
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* An { functionName, functionLocation } object hash,
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* or null if nothing is found at the specified location.
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*/
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getFunctionAtLocation: function STW_getFunctionAtLocation([aLine, aColumn]) {
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let self = this;
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let func = null;
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SyntaxTreeVisitor.walk(this.AST, {
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/**
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* Callback invoked for each node.
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* @param Node aNode
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*/
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onNode: function STW_onNode(aNode) {
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// Make sure the node is part of a branch that's guaranteed to be
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// hovered. Otherwise, return true to abruptly halt walking this
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// syntax tree branch. This is a really efficient optimization.
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return ParserHelpers.isWithinLines(aNode, aLine);
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},
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/**
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* Callback invoked for each identifier node.
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* @param Node aNode
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*/
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onIdentifier: function STW_onIdentifier(aNode) {
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// Make sure the identifier itself is hovered.
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let hovered = ParserHelpers.isWithinBounds(aNode, aLine, aColumn);
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if (!hovered) {
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return;
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}
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// Make sure the identifier is part of a "new" expression or
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// "call" expression node.
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let expression = ParserHelpers.getEnclosingFunctionExpression(aNode);
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if (!expression) {
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return;
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}
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// Found an identifier node that is part of a "new" expression or
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// "call" expression node. However, it may be an argument, not a callee.
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if (ParserHelpers.isFunctionCalleeArgument(aNode)) {
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// It's an argument.
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if (self.functionIdentifiersCache.has(aNode.name)) {
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// It's a function as an argument.
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func = {
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functionName: aNode.name,
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functionLocation: aNode.loc || aNode._parent.loc
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};
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}
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return;
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}
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// Found a valid "new" expression or "call" expression node.
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func = {
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functionName: aNode.name,
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functionLocation: ParserHelpers.getFunctionCalleeInfo(expression).loc
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};
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// Abruptly halt walking the syntax tree.
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this.break = true;
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}
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});
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return func;
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},
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/**
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* Gets all the function identifiers in this syntax tree (both the
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* function names and their inferred names).
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*
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* @return array
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* An array of strings.
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*/
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get functionIdentifiersCache() {
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if (this._functionIdentifiersCache) {
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return this._functionIdentifiersCache;
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}
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let functionDefinitions = this.getNamedFunctionDefinitions("");
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let functionIdentifiers = new Set();
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for (let { functionName, inferredName } of functionDefinitions) {
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functionIdentifiers.add(functionName);
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functionIdentifiers.add(inferredName);
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}
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return this._functionIdentifiersCache = functionIdentifiers;
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},
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AST: null,
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url: "",
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length: 0,
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offset: 0
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};
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/**
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* Parser utility methods.
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*/
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let ParserHelpers = {
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/**
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* Checks if a node's bounds contains a specified line.
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*
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* @param Node aNode
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* The node's bounds used as reference.
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* @param number aLine
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* The line number to check.
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* @return boolean
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* True if the line and column is contained in the node's bounds.
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*/
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isWithinLines: function PH_isWithinLines(aNode, aLine) {
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// Not all nodes have location information attached.
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if (!aNode.loc) {
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return this.isWithinLines(aNode._parent, aLine);
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}
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return aNode.loc.start.line <= aLine && aNode.loc.end.line >= aLine;
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},
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/**
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* Checks if a node's bounds contains a specified line and column.
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*
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* @param Node aNode
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* The node's bounds used as reference.
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* @param number aLine
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* The line number to check.
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* @param number aColumn
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* The column number to check.
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* @return boolean
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* True if the line and column is contained in the node's bounds.
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*/
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isWithinBounds: function PH_isWithinBounds(aNode, aLine, aColumn) {
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// Not all nodes have location information attached.
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if (!aNode.loc) {
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return this.isWithinBounds(aNode._parent, aLine, aColumn);
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}
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return aNode.loc.start.line == aLine && aNode.loc.end.line == aLine &&
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aNode.loc.start.column <= aColumn && aNode.loc.end.column >= aColumn;
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},
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/**
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* Try to infer a function expression's name & other details based on the
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* enclosing VariableDeclarator, AssignmentExpression or ObjectExpression node.
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*
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* @param Node aNode
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* The function expression node to get the name for.
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* @return object
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* The inferred function name, or empty string can't infer name,
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* along with the chain (a generic "context", like a prototype chain)
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* and location if available.
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*/
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inferFunctionExpressionInfo: function PH_inferFunctionExpressionInfo(aNode) {
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let parent = aNode._parent;
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// A function expression may be defined in a variable declarator,
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// e.g. var foo = function(){}, in which case it is possible to infer
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// the variable name.
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if (parent.type == "VariableDeclarator") {
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return {
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name: parent.id.name,
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chain: null,
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loc: parent.loc
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};
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}
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// Function expressions can also be defined in assignment expressions,
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// e.g. foo = function(){} or foo.bar = function(){}, in which case it is
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// possible to infer the assignee name ("foo" and "bar" respectively).
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if (parent.type == "AssignmentExpression") {
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let assigneeChain = this.getAssignmentExpressionAssigneeChain(parent);
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let assigneeLeaf = assigneeChain.pop();
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return {
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name: assigneeLeaf,
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chain: assigneeChain,
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loc: parent.left.loc
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};
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}
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// If a function expression is defined in an object expression,
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// e.g. { foo: function(){} }, then it is possible to infer the name
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// from the corresponding property.
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if (parent.type == "ObjectExpression") {
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let propertyDetails = this.getObjectExpressionPropertyKeyForValue(aNode);
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let propertyChain = this.getObjectExpressionPropertyChain(parent);
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let propertyLeaf = propertyDetails.name;
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return {
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name: propertyLeaf,
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chain: propertyChain,
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loc: propertyDetails.loc
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};
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}
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// Can't infer the function expression's name.
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return {
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name: "",
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chain: null,
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loc: null
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};
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},
|
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|
/**
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* Gets details about an object expression's property to which a specified
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* value is assigned. For example, the node returned for the value 42 in
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* "{ foo: { bar: 42 } }" is "bar".
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*
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* @param Node aNode
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* The value node assigned to a property in an object expression.
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* @return object
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* The details about the assignee property node.
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*/
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getObjectExpressionPropertyKeyForValue:
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function PH_getObjectExpressionPropertyKeyForValue(aNode) {
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let parent = aNode._parent;
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if (parent.type != "ObjectExpression") {
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return null;
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}
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for (let property of parent.properties) {
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if (property.value == aNode) {
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return property.key;
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}
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}
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},
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|
/**
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* Gets an object expression property chain to its parent variable declarator.
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|
* For example, the chain to "baz" in "foo = { bar: { baz: { } } }" is
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* ["foo", "bar", "baz"].
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*
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* @param Node aNode
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* The object expression node to begin the scan from.
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* @param array aStore [optional]
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* The chain to store the nodes into.
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* @return array
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* The chain to the parent variable declarator, as strings.
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*/
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|
getObjectExpressionPropertyChain:
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function PH_getObjectExpressionPropertyChain(aNode, aStore = []) {
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switch (aNode.type) {
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case "ObjectExpression":
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this.getObjectExpressionPropertyChain(aNode._parent, aStore);
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let propertyDetails = this.getObjectExpressionPropertyKeyForValue(aNode);
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if (propertyDetails) {
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aStore.push(this.getObjectExpressionPropertyKeyForValue(aNode).name);
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}
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break;
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// Handle "foo.bar = { ... }" since it's commonly used when defining an
|
|
// object's prototype methods; for example: "Foo.prototype = { ... }".
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case "AssignmentExpression":
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this.getAssignmentExpressionAssigneeChain(aNode, aStore);
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break;
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// Additionally handle stuff like "foo = bar.baz({ ... })", because it's
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// commonly used in prototype-based inheritance in many libraries;
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|
// for example: "Foo.Bar = Baz.extend({ ... })".
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case "NewExpression":
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case "CallExpression":
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this.getObjectExpressionPropertyChain(aNode._parent, aStore);
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break;
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// End of the chain.
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case "VariableDeclarator":
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aStore.push(aNode.id.name);
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break;
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}
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return aStore;
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},
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|
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/**
|
|
* Gets the assignee property chain in an assignment expression.
|
|
* For example, the chain in "foo.bar.baz = 42" is ["foo", "bar", "baz"].
|
|
*
|
|
* @param Node aNode
|
|
* The assignment expression node to begin the scan from.
|
|
* @param array aStore
|
|
* The chain to store the nodes into.
|
|
* @param array aStore [optional]
|
|
* The chain to store the nodes into.
|
|
* @return array
|
|
* The full assignee chain, as strings.
|
|
*/
|
|
getAssignmentExpressionAssigneeChain:
|
|
function PH_getAssignmentExpressionAssigneeChain(aNode, aStore = []) {
|
|
switch (aNode.type) {
|
|
case "AssignmentExpression":
|
|
this.getAssignmentExpressionAssigneeChain(aNode.left, aStore);
|
|
break;
|
|
case "MemberExpression":
|
|
this.getAssignmentExpressionAssigneeChain(aNode.object, aStore);
|
|
this.getAssignmentExpressionAssigneeChain(aNode.property, aStore);
|
|
break;
|
|
case "ThisExpression":
|
|
// Such expressions may appear in an assignee chain, for example
|
|
// "this.foo.bar = baz", however it seems better to ignore such nodes
|
|
// and limit the chain to ["foo", "bar"].
|
|
break;
|
|
case "Identifier":
|
|
aStore.push(aNode.name);
|
|
break;
|
|
}
|
|
return aStore;
|
|
},
|
|
|
|
/**
|
|
* Gets the "new" expression or "call" expression containing the specified
|
|
* node. If the node is not enclosed in either of these expression types,
|
|
* null is returned.
|
|
*
|
|
* @param Node aNode
|
|
* The child node of an enclosing "new" expression or "call" expression.
|
|
* @return Node
|
|
* The enclosing "new" expression or "call" expression node, or
|
|
* null if nothing is found.
|
|
*/
|
|
getEnclosingFunctionExpression:
|
|
function PH_getEnclosingFunctionExpression(aNode) {
|
|
switch (aNode.type) {
|
|
case "NewExpression":
|
|
case "CallExpression":
|
|
return aNode;
|
|
case "MemberExpression":
|
|
case "Identifier":
|
|
return this.getEnclosingFunctionExpression(aNode._parent);
|
|
default:
|
|
return null;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Gets the name and { line, column } location of a "new" expression or
|
|
* "call" expression's callee node.
|
|
*
|
|
* @param Node aNode
|
|
* The "new" expression or "call" expression to get the callee info for.
|
|
* @return object
|
|
* An object containing the name and location as properties, or
|
|
* null if nothing is found.
|
|
*/
|
|
getFunctionCalleeInfo: function PH_getFunctionCalleeInfo(aNode) {
|
|
switch (aNode.type) {
|
|
case "NewExpression":
|
|
case "CallExpression":
|
|
return this.getFunctionCalleeInfo(aNode.callee);
|
|
case "MemberExpression":
|
|
return this.getFunctionCalleeInfo(aNode.property);
|
|
case "Identifier":
|
|
return {
|
|
name: aNode.name,
|
|
loc: aNode.loc || (aNode._parent || {}).loc
|
|
};
|
|
default:
|
|
return null;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Determines if an identifier node is part of a "new" expression or
|
|
* "call" expression's callee arguments.
|
|
*
|
|
* @param Node aNode
|
|
* The node to determine if part of a function's arguments.
|
|
* @return boolean
|
|
* True if the identifier is an argument, false otherwise.
|
|
*/
|
|
isFunctionCalleeArgument: function PH_isFunctionCalleeArgument(aNode) {
|
|
if (!aNode._parent) {
|
|
return false;
|
|
}
|
|
switch (aNode._parent.type) {
|
|
case "NewExpression":
|
|
case "CallExpression":
|
|
return aNode._parent.arguments.indexOf(aNode) != -1;
|
|
default:
|
|
return this.isFunctionCalleeArgument(aNode._parent);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* A visitor for a syntax tree generated by the reflection API.
|
|
* See https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API.
|
|
*
|
|
* All node types implement the following interface:
|
|
* interface Node {
|
|
* type: string;
|
|
* loc: SourceLocation | null;
|
|
* }
|
|
*/
|
|
let SyntaxTreeVisitor = {
|
|
/**
|
|
* Walks a syntax tree.
|
|
*
|
|
* @param object aTree
|
|
* The AST nodes generated by the reflection API
|
|
* @param object aCallbacks
|
|
* A map of all the callbacks to invoke when passing through certain
|
|
* types of noes (e.g: onFunctionDeclaration, onBlockStatement etc.).
|
|
*/
|
|
walk: function STV_walk(aTree, aCallbacks) {
|
|
this[aTree.type](aTree, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A flag checked on each node in the syntax tree. If true, walking is
|
|
* abruptly halted.
|
|
*/
|
|
break: false,
|
|
|
|
/**
|
|
* A complete program source tree.
|
|
*
|
|
* interface Program <: Node {
|
|
* type: "Program";
|
|
* body: [ Statement ];
|
|
* }
|
|
*/
|
|
Program: function STV_Program(aNode, aCallbacks) {
|
|
if (aCallbacks.onProgram) {
|
|
aCallbacks.onProgram(aNode);
|
|
}
|
|
for (let statement of aNode.body) {
|
|
this[statement.type](statement, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Any statement.
|
|
*
|
|
* interface Statement <: Node { }
|
|
*/
|
|
Statement: function STV_Statement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onStatement) {
|
|
aCallbacks.onStatement(aNode);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* An empty statement, i.e., a solitary semicolon.
|
|
*
|
|
* interface EmptyStatement <: Statement {
|
|
* type: "EmptyStatement";
|
|
* }
|
|
*/
|
|
EmptyStatement: function STV_EmptyStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onEmptyStatement) {
|
|
aCallbacks.onEmptyStatement(aNode);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A block statement, i.e., a sequence of statements surrounded by braces.
|
|
*
|
|
* interface BlockStatement <: Statement {
|
|
* type: "BlockStatement";
|
|
* body: [ Statement ];
|
|
* }
|
|
*/
|
|
BlockStatement: function STV_BlockStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onBlockStatement) {
|
|
aCallbacks.onBlockStatement(aNode);
|
|
}
|
|
for (let statement of aNode.body) {
|
|
this[statement.type](statement, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* An expression statement, i.e., a statement consisting of a single expression.
|
|
*
|
|
* interface ExpressionStatement <: Statement {
|
|
* type: "ExpressionStatement";
|
|
* expression: Expression;
|
|
* }
|
|
*/
|
|
ExpressionStatement: function STV_ExpressionStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onExpressionStatement) {
|
|
aCallbacks.onExpressionStatement(aNode);
|
|
}
|
|
this[aNode.expression.type](aNode.expression, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* An if statement.
|
|
*
|
|
* interface IfStatement <: Statement {
|
|
* type: "IfStatement";
|
|
* test: Expression;
|
|
* consequent: Statement;
|
|
* alternate: Statement | null;
|
|
* }
|
|
*/
|
|
IfStatement: function STV_IfStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onIfStatement) {
|
|
aCallbacks.onIfStatement(aNode);
|
|
}
|
|
this[aNode.test.type](aNode.test, aNode, aCallbacks);
|
|
this[aNode.consequent.type](aNode.consequent, aNode, aCallbacks);
|
|
if (aNode.alternate) {
|
|
this[aNode.alternate.type](aNode.alternate, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A labeled statement, i.e., a statement prefixed by a break/continue label.
|
|
*
|
|
* interface LabeledStatement <: Statement {
|
|
* type: "LabeledStatement";
|
|
* label: Identifier;
|
|
* body: Statement;
|
|
* }
|
|
*/
|
|
LabeledStatement: function STV_LabeledStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onLabeledStatement) {
|
|
aCallbacks.onLabeledStatement(aNode);
|
|
}
|
|
this[aNode.label.type](aNode.label, aNode, aCallbacks);
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A break statement.
|
|
*
|
|
* interface BreakStatement <: Statement {
|
|
* type: "BreakStatement";
|
|
* label: Identifier | null;
|
|
* }
|
|
*/
|
|
BreakStatement: function STV_BreakStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onBreakStatement) {
|
|
aCallbacks.onBreakStatement(aNode);
|
|
}
|
|
if (aNode.label) {
|
|
this[aNode.label.type](aNode.label, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A continue statement.
|
|
*
|
|
* interface ContinueStatement <: Statement {
|
|
* type: "ContinueStatement";
|
|
* label: Identifier | null;
|
|
* }
|
|
*/
|
|
ContinueStatement: function STV_ContinueStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onContinueStatement) {
|
|
aCallbacks.onContinueStatement(aNode);
|
|
}
|
|
if (aNode.label) {
|
|
this[aNode.label.type](aNode.label, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A with statement.
|
|
*
|
|
* interface WithStatement <: Statement {
|
|
* type: "WithStatement";
|
|
* object: Expression;
|
|
* body: Statement;
|
|
* }
|
|
*/
|
|
WithStatement: function STV_WithStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onWithStatement) {
|
|
aCallbacks.onWithStatement(aNode);
|
|
}
|
|
this[aNode.object.type](aNode.object, aNode, aCallbacks);
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A switch statement. The lexical flag is metadata indicating whether the
|
|
* switch statement contains any unnested let declarations (and therefore
|
|
* introduces a new lexical scope).
|
|
*
|
|
* interface SwitchStatement <: Statement {
|
|
* type: "SwitchStatement";
|
|
* discriminant: Expression;
|
|
* cases: [ SwitchCase ];
|
|
* lexical: boolean;
|
|
* }
|
|
*/
|
|
SwitchStatement: function STV_SwitchStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onSwitchStatement) {
|
|
aCallbacks.onSwitchStatement(aNode);
|
|
}
|
|
this[aNode.discriminant.type](aNode.discriminant, aNode, aCallbacks);
|
|
for (let _case of aNode.cases) {
|
|
this[_case.type](_case, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A return statement.
|
|
*
|
|
* interface ReturnStatement <: Statement {
|
|
* type: "ReturnStatement";
|
|
* argument: Expression | null;
|
|
* }
|
|
*/
|
|
ReturnStatement: function STV_ReturnStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onReturnStatement) {
|
|
aCallbacks.onReturnStatement(aNode);
|
|
}
|
|
if (aNode.argument) {
|
|
this[aNode.argument.type](aNode.argument, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A throw statement.
|
|
*
|
|
* interface ThrowStatement <: Statement {
|
|
* type: "ThrowStatement";
|
|
* argument: Expression;
|
|
* }
|
|
*/
|
|
ThrowStatement: function STV_ThrowStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onThrowStatement) {
|
|
aCallbacks.onThrowStatement(aNode);
|
|
}
|
|
this[aNode.argument.type](aNode.argument, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A try statement.
|
|
*
|
|
* interface TryStatement <: Statement {
|
|
* type: "TryStatement";
|
|
* block: BlockStatement;
|
|
* handler: CatchClause | null;
|
|
* guardedHandlers: [ CatchClause ];
|
|
* finalizer: BlockStatement | null;
|
|
* }
|
|
*/
|
|
TryStatement: function STV_TryStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onTryStatement) {
|
|
aCallbacks.onTryStatement(aNode);
|
|
}
|
|
this[aNode.block.type](aNode.block, aNode, aCallbacks);
|
|
if (aNode.handler) {
|
|
this[aNode.handler.type](aNode.handler, aNode, aCallbacks);
|
|
}
|
|
for (let guardedHandler of aNode.guardedHandlers) {
|
|
this[guardedHandler.type](guardedHandler, aNode, aCallbacks);
|
|
}
|
|
if (aNode.finalizer) {
|
|
this[aNode.finalizer.type](aNode.finalizer, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A while statement.
|
|
*
|
|
* interface WhileStatement <: Statement {
|
|
* type: "WhileStatement";
|
|
* test: Expression;
|
|
* body: Statement;
|
|
* }
|
|
*/
|
|
WhileStatement: function STV_WhileStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onWhileStatement) {
|
|
aCallbacks.onWhileStatement(aNode);
|
|
}
|
|
this[aNode.test.type](aNode.test, aNode, aCallbacks);
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A do/while statement.
|
|
*
|
|
* interface DoWhileStatement <: Statement {
|
|
* type: "DoWhileStatement";
|
|
* body: Statement;
|
|
* test: Expression;
|
|
* }
|
|
*/
|
|
DoWhileStatement: function STV_DoWhileStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onDoWhileStatement) {
|
|
aCallbacks.onDoWhileStatement(aNode);
|
|
}
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
this[aNode.test.type](aNode.test, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A for statement.
|
|
*
|
|
* interface ForStatement <: Statement {
|
|
* type: "ForStatement";
|
|
* init: VariableDeclaration | Expression | null;
|
|
* test: Expression | null;
|
|
* update: Expression | null;
|
|
* body: Statement;
|
|
* }
|
|
*/
|
|
ForStatement: function STV_ForStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onForStatement) {
|
|
aCallbacks.onForStatement(aNode);
|
|
}
|
|
if (aNode.init) {
|
|
this[aNode.init.type](aNode.init, aNode, aCallbacks);
|
|
}
|
|
if (aNode.test) {
|
|
this[aNode.test.type](aNode.test, aNode, aCallbacks);
|
|
}
|
|
if (aNode.update) {
|
|
this[aNode.update.type](aNode.update, aNode, aCallbacks);
|
|
}
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A for/in statement, or, if each is true, a for each/in statement.
|
|
*
|
|
* interface ForInStatement <: Statement {
|
|
* type: "ForInStatement";
|
|
* left: VariableDeclaration | Expression;
|
|
* right: Expression;
|
|
* body: Statement;
|
|
* each: boolean;
|
|
* }
|
|
*/
|
|
ForInStatement: function STV_ForInStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onForInStatement) {
|
|
aCallbacks.onForInStatement(aNode);
|
|
}
|
|
this[aNode.left.type](aNode.left, aNode, aCallbacks);
|
|
this[aNode.right.type](aNode.right, aNode, aCallbacks);
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A for/of statement.
|
|
*
|
|
* interface ForOfStatement <: Statement {
|
|
* type: "ForOfStatement";
|
|
* left: VariableDeclaration | Expression;
|
|
* right: Expression;
|
|
* body: Statement;
|
|
* }
|
|
*/
|
|
ForOfStatement: function STV_ForOfStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onForOfStatement) {
|
|
aCallbacks.onForOfStatement(aNode);
|
|
}
|
|
this[aNode.left.type](aNode.left, aNode, aCallbacks);
|
|
this[aNode.right.type](aNode.right, aNode, aCallbacks);
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A let statement.
|
|
*
|
|
* interface LetStatement <: Statement {
|
|
* type: "LetStatement";
|
|
* head: [ { id: Pattern, init: Expression | null } ];
|
|
* body: Statement;
|
|
* }
|
|
*/
|
|
LetStatement: function STV_LetStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onLetStatement) {
|
|
aCallbacks.onLetStatement(aNode);
|
|
}
|
|
for (let { id, init } of aNode.head) {
|
|
this[id.type](id, aNode, aCallbacks);
|
|
if (init) {
|
|
this[init.type](init, aNode, aCallbacks);
|
|
}
|
|
}
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A debugger statement.
|
|
*
|
|
* interface DebuggerStatement <: Statement {
|
|
* type: "DebuggerStatement";
|
|
* }
|
|
*/
|
|
DebuggerStatement: function STV_DebuggerStatement(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onDebuggerStatement) {
|
|
aCallbacks.onDebuggerStatement(aNode);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Any declaration node. Note that declarations are considered statements;
|
|
* this is because declarations can appear in any statement context in the
|
|
* language recognized by the SpiderMonkey parser.
|
|
*
|
|
* interface Declaration <: Statement { }
|
|
*/
|
|
Declaration: function STV_Declaration(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onDeclaration) {
|
|
aCallbacks.onDeclaration(aNode);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A function declaration.
|
|
*
|
|
* interface FunctionDeclaration <: Function, Declaration {
|
|
* type: "FunctionDeclaration";
|
|
* id: Identifier;
|
|
* params: [ Pattern ];
|
|
* defaults: [ Expression ];
|
|
* rest: Identifier | null;
|
|
* body: BlockStatement | Expression;
|
|
* generator: boolean;
|
|
* expression: boolean;
|
|
* }
|
|
*/
|
|
FunctionDeclaration: function STV_FunctionDeclaration(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onFunctionDeclaration) {
|
|
aCallbacks.onFunctionDeclaration(aNode);
|
|
}
|
|
this[aNode.id.type](aNode.id, aNode, aCallbacks);
|
|
for (let param of aNode.params) {
|
|
this[param.type](param, aNode, aCallbacks);
|
|
}
|
|
for (let _default of aNode.defaults) {
|
|
this[_default.type](_default, aNode, aCallbacks);
|
|
}
|
|
if (aNode.rest) {
|
|
this[aNode.rest.type](aNode.rest, aNode, aCallbacks);
|
|
}
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A variable declaration, via one of var, let, or const.
|
|
*
|
|
* interface VariableDeclaration <: Declaration {
|
|
* type: "VariableDeclaration";
|
|
* declarations: [ VariableDeclarator ];
|
|
* kind: "var" | "let" | "const";
|
|
* }
|
|
*/
|
|
VariableDeclaration: function STV_VariableDeclaration(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onVariableDeclaration) {
|
|
aCallbacks.onVariableDeclaration(aNode);
|
|
}
|
|
for (let declaration of aNode.declarations) {
|
|
this[declaration.type](declaration, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A variable declarator.
|
|
*
|
|
* interface VariableDeclarator <: Node {
|
|
* type: "VariableDeclarator";
|
|
* id: Pattern;
|
|
* init: Expression | null;
|
|
* }
|
|
*/
|
|
VariableDeclarator: function STV_VariableDeclarator(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onVariableDeclarator) {
|
|
aCallbacks.onVariableDeclarator(aNode);
|
|
}
|
|
this[aNode.id.type](aNode.id, aNode, aCallbacks);
|
|
if (aNode.init) {
|
|
this[aNode.init.type](aNode.init, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Any expression node. Since the left-hand side of an assignment may be any
|
|
* expression in general, an expression can also be a pattern.
|
|
*
|
|
* interface Expression <: Node, Pattern { }
|
|
*/
|
|
Expression: function STV_Expression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onExpression) {
|
|
aCallbacks.onExpression(aNode);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A this expression.
|
|
*
|
|
* interface ThisExpression <: Expression {
|
|
* type: "ThisExpression";
|
|
* }
|
|
*/
|
|
ThisExpression: function STV_ThisExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onThisExpression) {
|
|
aCallbacks.onThisExpression(aNode);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* An array expression.
|
|
*
|
|
* interface ArrayExpression <: Expression {
|
|
* type: "ArrayExpression";
|
|
* elements: [ Expression | null ];
|
|
* }
|
|
*/
|
|
ArrayExpression: function STV_ArrayExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onArrayExpression) {
|
|
aCallbacks.onArrayExpression(aNode);
|
|
}
|
|
for (let element of aNode.elements) {
|
|
if (element) {
|
|
this[element.type](element, aNode, aCallbacks);
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* An object expression. A literal property in an object expression can have
|
|
* either a string or number as its value. Ordinary property initializers
|
|
* have a kind value "init"; getters and setters have the kind values "get"
|
|
* and "set", respectively.
|
|
*
|
|
* interface ObjectExpression <: Expression {
|
|
* type: "ObjectExpression";
|
|
* properties: [ { key: Literal | Identifier,
|
|
* value: Expression,
|
|
* kind: "init" | "get" | "set" } ];
|
|
* }
|
|
*/
|
|
ObjectExpression: function STV_ObjectExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onObjectExpression) {
|
|
aCallbacks.onObjectExpression(aNode);
|
|
}
|
|
for (let { key, value } of aNode.properties) {
|
|
this[key.type](key, aNode, aCallbacks);
|
|
this[value.type](value, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A function expression.
|
|
*
|
|
* interface FunctionExpression <: Function, Expression {
|
|
* type: "FunctionExpression";
|
|
* id: Identifier | null;
|
|
* params: [ Pattern ];
|
|
* defaults: [ Expression ];
|
|
* rest: Identifier | null;
|
|
* body: BlockStatement | Expression;
|
|
* generator: boolean;
|
|
* expression: boolean;
|
|
* }
|
|
*/
|
|
FunctionExpression: function STV_FunctionExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onFunctionExpression) {
|
|
aCallbacks.onFunctionExpression(aNode);
|
|
}
|
|
if (aNode.id) {
|
|
this[aNode.id.type](aNode.id, aNode, aCallbacks);
|
|
}
|
|
for (let param of aNode.params) {
|
|
this[param.type](param, aNode, aCallbacks);
|
|
}
|
|
for (let _default of aNode.defaults) {
|
|
this[_default.type](_default, aNode, aCallbacks);
|
|
}
|
|
if (aNode.rest) {
|
|
this[aNode.rest.type](aNode.rest, aNode, aCallbacks);
|
|
}
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A sequence expression, i.e., a comma-separated sequence of expressions.
|
|
*
|
|
* interface SequenceExpression <: Expression {
|
|
* type: "SequenceExpression";
|
|
* expressions: [ Expression ];
|
|
* }
|
|
*/
|
|
SequenceExpression: function STV_SequenceExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onSequenceExpression) {
|
|
aCallbacks.onSequenceExpression(aNode);
|
|
}
|
|
for (let expression of aNode.expressions) {
|
|
this[expression.type](expression, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A unary operator expression.
|
|
*
|
|
* interface UnaryExpression <: Expression {
|
|
* type: "UnaryExpression";
|
|
* operator: UnaryOperator;
|
|
* prefix: boolean;
|
|
* argument: Expression;
|
|
* }
|
|
*/
|
|
UnaryExpression: function STV_UnaryExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onUnaryExpression) {
|
|
aCallbacks.onUnaryExpression(aNode);
|
|
}
|
|
this[aNode.argument.type](aNode.argument, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A binary operator expression.
|
|
*
|
|
* interface BinaryExpression <: Expression {
|
|
* type: "BinaryExpression";
|
|
* operator: BinaryOperator;
|
|
* left: Expression;
|
|
* right: Expression;
|
|
* }
|
|
*/
|
|
BinaryExpression: function STV_BinaryExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onBinaryExpression) {
|
|
aCallbacks.onBinaryExpression(aNode);
|
|
}
|
|
this[aNode.left.type](aNode.left, aNode, aCallbacks);
|
|
this[aNode.right.type](aNode.right, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* An assignment operator expression.
|
|
*
|
|
* interface AssignmentExpression <: Expression {
|
|
* type: "AssignmentExpression";
|
|
* operator: AssignmentOperator;
|
|
* left: Expression;
|
|
* right: Expression;
|
|
* }
|
|
*/
|
|
AssignmentExpression: function STV_AssignmentExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onAssignmentExpression) {
|
|
aCallbacks.onAssignmentExpression(aNode);
|
|
}
|
|
this[aNode.left.type](aNode.left, aNode, aCallbacks);
|
|
this[aNode.right.type](aNode.right, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* An update (increment or decrement) operator expression.
|
|
*
|
|
* interface UpdateExpression <: Expression {
|
|
* type: "UpdateExpression";
|
|
* operator: UpdateOperator;
|
|
* argument: Expression;
|
|
* prefix: boolean;
|
|
* }
|
|
*/
|
|
UpdateExpression: function STV_UpdateExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onUpdateExpression) {
|
|
aCallbacks.onUpdateExpression(aNode);
|
|
}
|
|
this[aNode.argument.type](aNode.argument, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A logical operator expression.
|
|
*
|
|
* interface LogicalExpression <: Expression {
|
|
* type: "LogicalExpression";
|
|
* operator: LogicalOperator;
|
|
* left: Expression;
|
|
* right: Expression;
|
|
* }
|
|
*/
|
|
LogicalExpression: function STV_LogicalExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onLogicalExpression) {
|
|
aCallbacks.onLogicalExpression(aNode);
|
|
}
|
|
this[aNode.left.type](aNode.left, aNode, aCallbacks);
|
|
this[aNode.right.type](aNode.right, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A conditional expression, i.e., a ternary ?/: expression.
|
|
*
|
|
* interface ConditionalExpression <: Expression {
|
|
* type: "ConditionalExpression";
|
|
* test: Expression;
|
|
* alternate: Expression;
|
|
* consequent: Expression;
|
|
* }
|
|
*/
|
|
ConditionalExpression: function STV_ConditionalExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onConditionalExpression) {
|
|
aCallbacks.onConditionalExpression(aNode);
|
|
}
|
|
this[aNode.test.type](aNode.test, aNode, aCallbacks);
|
|
this[aNode.alternate.type](aNode.alternate, aNode, aCallbacks);
|
|
this[aNode.consequent.type](aNode.consequent, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A new expression.
|
|
*
|
|
* interface NewExpression <: Expression {
|
|
* type: "NewExpression";
|
|
* callee: Expression;
|
|
* arguments: [ Expression | null ];
|
|
* }
|
|
*/
|
|
NewExpression: function STV_NewExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onNewExpression) {
|
|
aCallbacks.onNewExpression(aNode);
|
|
}
|
|
this[aNode.callee.type](aNode.callee, aNode, aCallbacks);
|
|
for (let argument of aNode.arguments) {
|
|
if (argument) {
|
|
this[argument.type](argument, aNode, aCallbacks);
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A function or method call expression.
|
|
*
|
|
* interface CallExpression <: Expression {
|
|
* type: "CallExpression";
|
|
* callee: Expression;
|
|
* arguments: [ Expression | null ];
|
|
* }
|
|
*/
|
|
CallExpression: function STV_CallExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onCallExpression) {
|
|
aCallbacks.onCallExpression(aNode);
|
|
}
|
|
this[aNode.callee.type](aNode.callee, aNode, aCallbacks);
|
|
for (let argument of aNode.arguments) {
|
|
if (argument) {
|
|
this[argument.type](argument, aNode, aCallbacks);
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A member expression. If computed is true, the node corresponds to a
|
|
* computed e1[e2] expression and property is an Expression. If computed is
|
|
* false, the node corresponds to a static e1.x expression and property is an
|
|
* Identifier.
|
|
*
|
|
* interface MemberExpression <: Expression {
|
|
* type: "MemberExpression";
|
|
* object: Expression;
|
|
* property: Identifier | Expression;
|
|
* computed: boolean;
|
|
* }
|
|
*/
|
|
MemberExpression: function STV_MemberExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onMemberExpression) {
|
|
aCallbacks.onMemberExpression(aNode);
|
|
}
|
|
this[aNode.object.type](aNode.object, aNode, aCallbacks);
|
|
this[aNode.property.type](aNode.property, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A yield expression.
|
|
*
|
|
* interface YieldExpression <: Expression {
|
|
* argument: Expression | null;
|
|
* }
|
|
*/
|
|
YieldExpression: function STV_YieldExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onYieldExpression) {
|
|
aCallbacks.onYieldExpression(aNode);
|
|
}
|
|
if (aNode.argument) {
|
|
this[aNode.argument.type](aNode.argument, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* An array comprehension. The blocks array corresponds to the sequence of
|
|
* for and for each blocks. The optional filter expression corresponds to the
|
|
* final if clause, if present.
|
|
*
|
|
* interface ComprehensionExpression <: Expression {
|
|
* body: Expression;
|
|
* blocks: [ ComprehensionBlock ];
|
|
* filter: Expression | null;
|
|
* }
|
|
*/
|
|
ComprehensionExpression: function STV_ComprehensionExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onComprehensionExpression) {
|
|
aCallbacks.onComprehensionExpression(aNode);
|
|
}
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
for (let block of aNode.blocks) {
|
|
this[block.type](block, aNode, aCallbacks);
|
|
}
|
|
if (aNode.filter) {
|
|
this[aNode.filter.type](aNode.filter, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A generator expression. As with array comprehensions, the blocks array
|
|
* corresponds to the sequence of for and for each blocks, and the optional
|
|
* filter expression corresponds to the final if clause, if present.
|
|
*
|
|
* interface GeneratorExpression <: Expression {
|
|
* body: Expression;
|
|
* blocks: [ ComprehensionBlock ];
|
|
* filter: Expression | null;
|
|
* }
|
|
*/
|
|
GeneratorExpression: function STV_GeneratorExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onGeneratorExpression) {
|
|
aCallbacks.onGeneratorExpression(aNode);
|
|
}
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
for (let block of aNode.blocks) {
|
|
this[block.type](block, aNode, aCallbacks);
|
|
}
|
|
if (aNode.filter) {
|
|
this[aNode.filter.type](aNode.filter, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A graph expression, aka "sharp literal," such as #1={ self: #1# }.
|
|
*
|
|
* interface GraphExpression <: Expression {
|
|
* index: uint32;
|
|
* expression: Literal;
|
|
* }
|
|
*/
|
|
GraphExpression: function STV_GraphExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onGraphExpression) {
|
|
aCallbacks.onGraphExpression(aNode);
|
|
}
|
|
this[aNode.expression.type](aNode.expression, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A graph index expression, aka "sharp variable," such as #1#.
|
|
*
|
|
* interface GraphIndexExpression <: Expression {
|
|
* index: uint32;
|
|
* }
|
|
*/
|
|
GraphIndexExpression: function STV_GraphIndexExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onGraphIndexExpression) {
|
|
aCallbacks.onGraphIndexExpression(aNode);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A let expression.
|
|
*
|
|
* interface LetExpression <: Expression {
|
|
* type: "LetExpression";
|
|
* head: [ { id: Pattern, init: Expression | null } ];
|
|
* body: Expression;
|
|
* }
|
|
*/
|
|
LetExpression: function STV_LetExpression(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onLetExpression) {
|
|
aCallbacks.onLetExpression(aNode);
|
|
}
|
|
for (let { id, init } of aNode.head) {
|
|
this[id.type](id, aNode, aCallbacks);
|
|
if (init) {
|
|
this[init.type](init, aNode, aCallbacks);
|
|
}
|
|
}
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* Any pattern.
|
|
*
|
|
* interface Pattern <: Node { }
|
|
*/
|
|
Pattern: function STV_Pattern(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onPattern) {
|
|
aCallbacks.onPattern(aNode);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* An object-destructuring pattern. A literal property in an object pattern
|
|
* can have either a string or number as its value.
|
|
*
|
|
* interface ObjectPattern <: Pattern {
|
|
* type: "ObjectPattern";
|
|
* properties: [ { key: Literal | Identifier, value: Pattern } ];
|
|
* }
|
|
*/
|
|
ObjectPattern: function STV_ObjectPattern(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onObjectPattern) {
|
|
aCallbacks.onObjectPattern(aNode);
|
|
}
|
|
for (let { key, value } of aNode.properties) {
|
|
this[key.type](key, aNode, aCallbacks);
|
|
this[value.type](value, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* An array-destructuring pattern.
|
|
*
|
|
* interface ArrayPattern <: Pattern {
|
|
* type: "ArrayPattern";
|
|
* elements: [ Pattern | null ];
|
|
* }
|
|
*/
|
|
ArrayPattern: function STV_ArrayPattern(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onArrayPattern) {
|
|
aCallbacks.onArrayPattern(aNode);
|
|
}
|
|
for (let element of aNode.elements) {
|
|
if (element) {
|
|
this[element.type](element, aNode, aCallbacks);
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A case (if test is an Expression) or default (if test is null) clause in
|
|
* the body of a switch statement.
|
|
*
|
|
* interface SwitchCase <: Node {
|
|
* type: "SwitchCase";
|
|
* test: Expression | null;
|
|
* consequent: [ Statement ];
|
|
* }
|
|
*/
|
|
SwitchCase: function STV_SwitchCase(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onSwitchCase) {
|
|
aCallbacks.onSwitchCase(aNode);
|
|
}
|
|
if (aNode.test) {
|
|
this[aNode.test.type](aNode.test, aNode, aCallbacks);
|
|
}
|
|
for (let consequent of aNode.consequent) {
|
|
this[consequent.type](consequent, aNode, aCallbacks);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A catch clause following a try block. The optional guard property
|
|
* corresponds to the optional expression guard on the bound variable.
|
|
*
|
|
* interface CatchClause <: Node {
|
|
* type: "CatchClause";
|
|
* param: Pattern;
|
|
* guard: Expression | null;
|
|
* body: BlockStatement;
|
|
* }
|
|
*/
|
|
CatchClause: function STV_CatchClause(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onCatchClause) {
|
|
aCallbacks.onCatchClause(aNode);
|
|
}
|
|
this[aNode.param.type](aNode.param, aNode, aCallbacks);
|
|
if (aNode.guard) {
|
|
this[aNode.guard.type](aNode.guard, aNode, aCallbacks);
|
|
}
|
|
this[aNode.body.type](aNode.body, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* A for or for each block in an array comprehension or generator expression.
|
|
*
|
|
* interface ComprehensionBlock <: Node {
|
|
* left: Pattern;
|
|
* right: Expression;
|
|
* each: boolean;
|
|
* }
|
|
*/
|
|
ComprehensionBlock: function STV_ComprehensionBlock(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onComprehensionBlock) {
|
|
aCallbacks.onComprehensionBlock(aNode);
|
|
}
|
|
this[aNode.left.type](aNode.left, aNode, aCallbacks);
|
|
this[aNode.right.type](aNode.right, aNode, aCallbacks);
|
|
},
|
|
|
|
/**
|
|
* An identifier. Note that an identifier may be an expression or a
|
|
* destructuring pattern.
|
|
*
|
|
* interface Identifier <: Node, Expression, Pattern {
|
|
* type: "Identifier";
|
|
* name: string;
|
|
* }
|
|
*/
|
|
Identifier: function STV_Identifier(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onIdentifier) {
|
|
aCallbacks.onIdentifier(aNode);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* A literal token. Note that a literal can be an expression.
|
|
*
|
|
* interface Literal <: Node, Expression {
|
|
* type: "Literal";
|
|
* value: string | boolean | null | number | RegExp;
|
|
* }
|
|
*/
|
|
Literal: function STV_Literal(aNode, aParent, aCallbacks) {
|
|
aNode._parent = aParent;
|
|
|
|
if (this.break) {
|
|
return;
|
|
}
|
|
if (aCallbacks.onNode) {
|
|
if (aCallbacks.onNode(aNode, aParent) === false) {
|
|
return;
|
|
}
|
|
}
|
|
if (aCallbacks.onLiteral) {
|
|
aCallbacks.onLiteral(aNode);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Logs a warning.
|
|
*
|
|
* @param string aStr
|
|
* The message to be displayed.
|
|
* @param Exception aEx
|
|
* The thrown exception.
|
|
*/
|
|
function log(aStr, aEx) {
|
|
let msg = "Warning: " + aStr + ", " + aEx + "\n" + aEx.stack;
|
|
Cu.reportError(msg);
|
|
dump(msg + "\n");
|
|
};
|
|
|
|
XPCOMUtils.defineLazyGetter(Parser, "reflectionAPI", function() Reflect);
|