109 lines
3.1 KiB
JavaScript
109 lines
3.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true,
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});
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exports.default = composeSourceMaps;
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var _Consumer = _interopRequireDefault(require("./Consumer"));
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var _sourceMap = require("source-map");
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function _interopRequireDefault(e) {
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return e && e.__esModule ? e : { default: e };
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}
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_Consumer.default;
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function composeSourceMaps(maps) {
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const SourceMetadataMapConsumer =
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require("metro-symbolicate/private/SourceMetadataMapConsumer").default;
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const GoogleIgnoreListConsumer =
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require("metro-symbolicate/private/GoogleIgnoreListConsumer").default;
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if (maps.length < 1) {
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throw new Error("composeSourceMaps: Expected at least one map");
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}
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const firstMap = maps[0];
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const consumers = maps
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.map(function (map) {
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return new _Consumer.default(map);
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})
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.reverse();
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const generator = new _sourceMap.SourceMapGenerator({
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file: consumers[0].file,
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});
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consumers[0].eachMapping((mapping) => {
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const original = findOriginalPosition(
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consumers,
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mapping.generatedLine,
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mapping.generatedColumn,
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);
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generator.addMapping({
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generated: {
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line: mapping.generatedLine,
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column: mapping.generatedColumn,
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},
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original:
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original.line != null
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? {
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line: original.line,
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column: original.column,
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}
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: null,
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source: original.source,
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name: original.name,
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});
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});
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const composedMap = generator.toJSON();
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composedMap.sourcesContent = composedMap.sources.map((source) =>
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consumers[consumers.length - 1].sourceContentFor(source, true),
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);
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if (composedMap.sourcesContent.every((content) => content == null)) {
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delete composedMap.sourcesContent;
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}
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const metadataConsumer = new SourceMetadataMapConsumer(firstMap);
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composedMap.x_facebook_sources = metadataConsumer.toArray(
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composedMap.sources,
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);
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const function_offsets = maps[maps.length - 1].x_hermes_function_offsets;
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if (function_offsets) {
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composedMap.x_hermes_function_offsets = function_offsets;
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}
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const ignoreListConsumer = new GoogleIgnoreListConsumer(firstMap);
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const x_google_ignoreList = ignoreListConsumer.toArray(composedMap.sources);
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if (x_google_ignoreList.length) {
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composedMap.x_google_ignoreList = x_google_ignoreList;
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}
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return composedMap;
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}
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function findOriginalPosition(consumers, generatedLine, generatedColumn) {
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let currentLine = generatedLine;
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let currentColumn = generatedColumn;
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let original = {
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line: null,
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column: null,
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source: null,
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name: null,
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};
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for (const consumer of consumers) {
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if (currentLine == null || currentColumn == null) {
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return {
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line: null,
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column: null,
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source: null,
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name: null,
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};
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}
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original = consumer.originalPositionFor({
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line: currentLine,
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column: currentColumn,
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});
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currentLine = original.line;
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currentColumn = original.column;
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if (currentLine == null) {
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return {
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line: null,
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column: null,
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source: null,
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name: null,
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};
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}
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}
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return original;
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}
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