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Replaces literal {} created lookup tables with Object.create

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This commit is contained in:
Yury Delendik 2016-01-27 11:04:13 -06:00
parent d6adf84159
commit 2edf2792dc
18 changed files with 106 additions and 104 deletions
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10
src/core/evaluator.js
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@ -731,7 +731,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
var self = this;
var xref = this.xref;
var imageCache = {};
var imageCache = Object.create(null);
assert(operatorList);
@ -1054,7 +1054,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// The xobj is parsed iff it's needed, e.g. if there is a `DO` cmd.
var xobjs = null;
var xobjsCache = {};
var xobjsCache = Object.create(null);
var preprocessor = new EvaluatorPreprocessor(stream, xref, stateManager);
@ -2093,7 +2093,7 @@ var TranslatedFont = (function TranslatedFontClosure() {
var charProcs = this.dict.get('CharProcs').getAll();
var fontResources = this.dict.get('Resources') || resources;
var charProcKeys = Object.keys(charProcs);
var charProcOperatorList = {};
var charProcOperatorList = Object.create(null);
for (var i = 0, n = charProcKeys.length; i < n; ++i) {
loadCharProcsPromise = loadCharProcsPromise.then(function (key) {
var glyphStream = charProcs[key];
@ -2147,7 +2147,7 @@ var OperatorList = (function OperatorListClosure() {
this.messageHandler = messageHandler;
this.fnArray = [];
this.argsArray = [];
this.dependencies = {};
this.dependencies = Object.create(null);
this._totalLength = 0;
this.pageIndex = pageIndex;
this.intent = intent;
@ -2227,7 +2227,7 @@ var OperatorList = (function OperatorListClosure() {
pageIndex: this.pageIndex,
intent: this.intent
}, transfers);
this.dependencies = {};
this.dependencies = Object.create(null);
this.fnArray.length = 0;
this.argsArray.length = 0;
}