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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
"use strict";
const {
WorkerDispatcher,
} = require("resource://devtools/client/shared/worker-utils.js");
const EventEmitter = require("resource://devtools/shared/event-emitter.js");
const { LocalizationHelper } = require("resource://devtools/shared/l10n.js");
const L10N = new LocalizationHelper(
"devtools/client/locales/toolbox.properties"
);
const SOURCE_MAP_WORKER_URL =
"resource://devtools/client/shared/source-map-loader/worker.js";
const {
originalToGeneratedId,
generatedToOriginalId,
isGeneratedId,
isOriginalId,
} = require("resource://devtools/client/shared/source-map-loader/utils/index.js");
class SourceMapLoader extends WorkerDispatcher {
constructor(targetCommand) {
super(SOURCE_MAP_WORKER_URL);
this.#targetCommand = targetCommand;
}
#setSourceMapForGeneratedSources = this.task(
"setSourceMapForGeneratedSources"
);
#getOriginalURLs = this.task("getOriginalURLs");
#getOriginalSourceText = this.task("getOriginalSourceText");
#targetCommand = null;
async getOriginalURLs(urlInfo) {
try {
return await this.#getOriginalURLs(urlInfo);
} catch (error) {
// Note that tests may not pass the targetCommand
if (this.#targetCommand) {
// Catch all errors and log them to the Web Console for users to see.
const message = L10N.getFormatStr(
"toolbox.sourceMapFailure",
error,
urlInfo.url,
urlInfo.sourceMapURL
);
this.#targetCommand.targetFront.logWarningInPage(message, "source map");
}
// And re-throw the error so that the debugger can also interpret the error
throw error;
}
}
hasOriginalURL = this.task("hasOriginalURL");
getOriginalRanges = this.task("getOriginalRanges");
getGeneratedRanges = this.task("getGeneratedRanges", {
queue: true,
});
getGeneratedLocation = this.task("getGeneratedLocation", {
queue: true,
});
getOriginalLocation = this.task("getOriginalLocation", {
queue: true,
});
getOriginalLocations = this.task("getOriginalLocations");
getGeneratedRangesForOriginal = this.task("getGeneratedRangesForOriginal");
getFileGeneratedRange = this.task("getFileGeneratedRange");
loadSourceMap = this.task("loadSourceMap");
async getOriginalSourceText(originalSourceId) {
try {
return await this.#getOriginalSourceText(originalSourceId);
} catch (error) {
const message = L10N.getFormatStr(
"toolbox.sourceMapSourceFailure",
error.message,
error.metadata ? error.metadata.url : "<unknown>"
);
// Note that tests may not pass the targetCommand
if (this.#targetCommand) {
// Catch all errors and log them to the Web Console for users to see.
this.#targetCommand.targetFront.logWarningInPage(message, "source map");
}
// Also replace the result with the error text.
// Note that this result has to have the same form
// as whatever the upstream getOriginalSourceText
// returns.
return {
text: message,
contentType: "text/plain",
};
}
}
clearSourceMaps = this.task("clearSourceMaps");
getOriginalStackFrames = this.task("getOriginalStackFrames");
async setSourceMapForGeneratedSources(generatedIds, sourceMap) {
const rv = await this.#setSourceMapForGeneratedSources(
generatedIds,
sourceMap
);
// Notify and ensure waiting for the SourceMapURLService to process the source map before resolving.
// Otherwise tests start failing because of pending request made by this component.
await this.emitAsync("source-map-created", generatedIds);
return rv;
}
destroy() {
// Request to stop the underlying DOM Worker
this.stop();
// Unregister all listeners
this.clearEvents();
// SourceMapLoader may be leaked and so it is important to clear most outer references
this.#targetCommand = null;
}
}
EventEmitter.decorate(SourceMapLoader.prototype);
module.exports = {
SourceMapLoader,
originalToGeneratedId,
generatedToOriginalId,
isGeneratedId,
isOriginalId,
};
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