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Simplify the PDFDocument constructor

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Originally the code in the `src/`-folder was shared between the main/worker-threads, and back then it probably made sense that the `PDFDocument` constructor accepted different arguments.
However, for many years we've not been passing anything *except* Streams to `PDFDocument` and we should thus be able to slightly simplify that code. Note that for e.g. unit-tests of this code, using either a `NullStream` or a `StringStream` works just fine.
This commit is contained in:
Jonas Jenwald 2022-03-08 17:13:47 +01:00
parent 3e593cfc1d
commit 6a78f20b17
1 changed files with 10 additions and 10 deletions
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20
src/core/document.js
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@ -18,7 +18,6 @@ import {
FormatError,
info,
InvalidPDFException,
isArrayBuffer,
isArrayEqual,
OPS,
PageActionEventType,
@ -43,13 +42,13 @@ import {
} from "./core_utils.js";
import { Dict, isName, Name, Ref } from "./primitives.js";
import { getXfaFontDict, getXfaFontName } from "./xfa_fonts.js";
import { NullStream, Stream } from "./stream.js";
import { AnnotationFactory } from "./annotation.js";
import { BaseStream } from "./base_stream.js";
import { calculateMD5 } from "./crypto.js";
import { Catalog } from "./catalog.js";
import { clearGlobalCaches } from "./cleanup_helper.js";
import { Linearization } from "./parser.js";
import { NullStream } from "./stream.js";
import { ObjectLoader } from "./object_loader.js";
import { OperatorList } from "./operator_list.js";
import { PartialEvaluator } from "./evaluator.js";
@ -625,14 +624,15 @@ function find(stream, signature, limit = 1024, backwards = false) {
* The `PDFDocument` class holds all the (worker-thread) data of the PDF file.
*/
class PDFDocument {
constructor(pdfManager, arg) {
let stream;
if (arg instanceof BaseStream) {
stream = arg;
} else if (isArrayBuffer(arg)) {
stream = new Stream(arg);
} else {
throw new Error("PDFDocument: Unknown argument type");
constructor(pdfManager, stream) {
if (
typeof PDFJSDev === "undefined" ||
PDFJSDev.test("!PRODUCTION || TESTING")
) {
assert(
stream instanceof BaseStream,
'PDFDocument: Invalid "stream" argument.'
);
}
if (stream.length <= 0) {
throw new InvalidPDFException(