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Replace the isInt helper function with the native Number.isInteger function

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*Follow-up to PR 8643.*
This commit is contained in:
Jonas Jenwald 2017-09-01 16:52:50 +02:00
parent 066fea9c8b
commit 11408da340
12 changed files with 65 additions and 72 deletions
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17
src/core/parser.js
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@ -18,8 +18,8 @@ import {
JpegStream, JpxStream, LZWStream, NullStream, PredictorStream, RunLengthStream
} from './stream';
import {
assert, FormatError, info, isArray, isInt, isNum, isString,
MissingDataException, StreamType, warn
assert, FormatError, info, isArray, isNum, isString, MissingDataException,
StreamType, warn
} from '../shared/util';
import {
Cmd, Dict, EOF, isCmd, isDict, isEOF, isName, Name, Ref
@ -121,9 +121,9 @@ var Parser = (function ParserClosure() {
}
}
if (isInt(buf1)) { // indirect reference or integer
if (Number.isInteger(buf1)) { // indirect reference or integer
var num = buf1;
if (isInt(this.buf1) && isCmd(this.buf2, 'R')) {
if (Number.isInteger(this.buf1) && isCmd(this.buf2, 'R')) {
var ref = new Ref(num, this.buf1);
this.shift();
this.shift();
@ -456,7 +456,7 @@ var Parser = (function ParserClosure() {
// get length
var length = dict.get('Length');
if (!isInt(length)) {
if (!Number.isInteger(length)) {
info('Bad ' + length + ' attribute in stream');
length = 0;
}
@ -1069,7 +1069,7 @@ var Linearization = {
create: function LinearizationCreate(stream) {
function getInt(name, allowZeroValue) {
var obj = linDict.get(name);
if (isInt(obj) && (allowZeroValue ? obj >= 0 : obj > 0)) {
if (Number.isInteger(obj) && (allowZeroValue ? obj >= 0 : obj > 0)) {
return obj;
}
throw new Error('The "' + name + '" parameter in the linearization ' +
@ -1080,7 +1080,7 @@ var Linearization = {
if (isArray(hints) &&
((hintsLength = hints.length) === 2 || hintsLength === 4)) {
for (var index = 0; index < hintsLength; index++) {
if (!(isInt(item = hints[index]) && item > 0)) {
if (!(Number.isInteger(item = hints[index]) && item > 0)) {
throw new Error('Hint (' + index +
') in the linearization dictionary is invalid.');
}
@ -1095,7 +1095,8 @@ var Linearization = {
var obj3 = parser.getObj();
var linDict = parser.getObj();
var obj, length;
if (!(isInt(obj1) && isInt(obj2) && isCmd(obj3, 'obj') && isDict(linDict) &&
if (!(Number.isInteger(obj1) && Number.isInteger(obj2) &&
isCmd(obj3, 'obj') && isDict(linDict) &&
isNum(obj = linDict.get('Linearized')) && obj > 0)) {
return null; // No valid linearization dictionary found.
} else if ((length = getInt('L')) !== stream.length) {