forked from mirrors/gecko-dev
ae7b6ea7e4
This used to be a node package. Let's make it become regular commonjs devtools modules. This will make it trivial to migrate this to ES Modules. Also possibly make this code become the unique layer in m-c on top of the source-map package. We no longer use webpack to build the two bundles (index.js and worker.js), instead, we are using the toolkit worker loader (require.js) in order to load all this code without any build step. As this is no longer a node package, I removed node-specific modules (assertRoot/wasmAsset) and simplify the definition of wasm file URIs as they are now fixed. Also moving the debugger to load internal "devtools/client/shared/source-map/source-map.js" module in jest as running the Web Worker instantiated by source-map/index.js is too complex. Differential Revision: https://phabricator.services.mozilla.com/D159115
112 lines
2.5 KiB
JavaScript
112 lines
2.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
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"use strict";
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/**
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* SourceMapConsumer for WebAssembly source maps. It transposes columns with
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* lines, which allows mapping data to be used with SpiderMonkey Debugger API.
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*/
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class WasmRemap {
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/**
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* @param map SourceMapConsumer
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*/
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constructor(map) {
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this._map = map;
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this.version = map.version;
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this.file = map.file;
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this._computeColumnSpans = false;
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}
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get sources() {
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return this._map.sources;
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}
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get sourceRoot() {
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return this._map.sourceRoot;
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}
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get names() {
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return this._map.names;
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}
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get sourcesContent() {
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return this._map.sourcesContent;
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}
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get mappings() {
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throw new Error("not supported");
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}
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computeColumnSpans() {
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this._computeColumnSpans = true;
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}
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originalPositionFor(generatedPosition) {
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const result = this._map.originalPositionFor({
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line: 1,
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column: generatedPosition.line,
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bias: generatedPosition.bias,
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});
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return result;
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}
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_remapGeneratedPosition(position) {
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const generatedPosition = {
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line: position.column,
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column: 0,
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};
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if (this._computeColumnSpans) {
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generatedPosition.lastColumn = 0;
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}
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return generatedPosition;
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}
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generatedPositionFor(originalPosition) {
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const position = this._map.generatedPositionFor(originalPosition);
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return this._remapGeneratedPosition(position);
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}
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allGeneratedPositionsFor(originalPosition) {
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const positions = this._map.allGeneratedPositionsFor(originalPosition);
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return positions.map(position => {
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return this._remapGeneratedPosition(position);
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});
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}
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hasContentsOfAllSources() {
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return this._map.hasContentsOfAllSources();
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}
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sourceContentFor(source, returnNullOnMissing) {
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return this._map.sourceContentFor(source, returnNullOnMissing);
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}
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eachMapping(callback, context, order) {
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this._map.eachMapping(
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entry => {
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const {
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source,
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generatedColumn,
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originalLine,
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originalColumn,
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name,
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} = entry;
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callback({
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source,
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generatedLine: generatedColumn,
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generatedColumn: 0,
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lastGeneratedColumn: 0,
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originalLine,
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originalColumn,
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name,
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});
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},
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context,
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order
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);
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}
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}
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exports.WasmRemap = WasmRemap;
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