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Add more validation in PDFWorker.fromPort

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The signature of the `PDFWorker.fromPort` method, in addition to the `PDFWorker` constructor, was changed in PR 9480.
Hence it's probably a good idea to add a bit more validation to `PDFWorker.fromPort`, to ensure that it won't fail silently for an API consumer that updates to version 2.0 of the PDF.js library.
This commit is contained in:
Jonas Jenwald 2018-06-05 20:29:42 +02:00
parent 3c5c8d2a0b
commit 47a9d38280
1 changed files with 3 additions and 0 deletions
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src/display/api.js
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@ -1593,6 +1593,9 @@ var PDFWorker = (function PDFWorkerClosure() {
* @param {PDFWorkerParameters} params - The worker initialization parameters. * @param {PDFWorkerParameters} params - The worker initialization parameters.
*/ */
PDFWorker.fromPort = function(params) { PDFWorker.fromPort = function(params) {
if (!params || !params.port) {
throw new Error('PDFWorker.fromPort - invalid method signature.');
}
if (pdfWorkerPorts.has(params.port)) { if (pdfWorkerPorts.has(params.port)) {
return pdfWorkerPorts.get(params.port); return pdfWorkerPorts.get(params.port);
} }