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Merge pull request #10938 from Snuffleupagus/fewer-XRef-isCmd

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Reduce the number of `isCmd` calls slightly in the `XRef` class
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Tim van der Meij 2019-06-30 14:41:26 +02:00 committed by GitHub
commit 5517c94d66
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1 changed files with 11 additions and 6 deletions
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17
src/core/obj.js
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@ -20,7 +20,7 @@ import {
warn
} from '../shared/util';
import {
clearPrimitiveCaches, Dict, isCmd, isDict, isName, isRef, isRefsEqual,
clearPrimitiveCaches, Cmd, Dict, isCmd, isDict, isName, isRef, isRefsEqual,
isStream, Ref, RefSet, RefSetCache
} from './primitives';
import { Lexer, Parser } from './parser';
@ -1200,10 +1200,15 @@ var XRef = (function XRefClosure() {
entry.gen = parser.getObj();
var type = parser.getObj();
if (isCmd(type, 'f')) {
entry.free = true;
} else if (isCmd(type, 'n')) {
entry.uncompressed = true;
if (type instanceof Cmd) {
switch (type.cmd) {
case 'f':
entry.free = true;
break;
case 'n':
entry.uncompressed = true;
break;
}
}
// Validate entry obj
@ -1685,7 +1690,7 @@ var XRef = (function XRefClosure() {
if (!Number.isInteger(obj2)) {
obj2 = parseInt(obj2, 10);
}
if (obj1 !== num || obj2 !== gen || !isCmd(obj3)) {
if (obj1 !== num || obj2 !== gen || !(obj3 instanceof Cmd)) {
throw new XRefEntryException(`Bad (uncompressed) XRef entry: ${ref}`);
}
if (obj3.cmd !== 'obj') {