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91 lines
3.1 KiB
91 lines
3.1 KiB
4 weeks ago
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import { AnyMap, encodedMappings, originalPositionFor, generatedPositionFor, allGeneratedPositionsFor, sourceContentFor, eachMapping } from '@jridgewell/trace-mapping';
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import { GenMapping, fromMap, maybeAddMapping, setSourceContent, toEncodedMap, toDecodedMap } from '@jridgewell/gen-mapping';
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class SourceMapConsumer {
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constructor(map, mapUrl) {
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const trace = (this._map = new AnyMap(map, mapUrl));
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this.file = trace.file;
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this.names = trace.names;
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this.sourceRoot = trace.sourceRoot;
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this.sources = trace.resolvedSources;
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this.sourcesContent = trace.sourcesContent;
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this.version = trace.version;
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}
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static fromSourceMap(map, mapUrl) {
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// This is more performant if we receive
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// a @jridgewell/source-map SourceMapGenerator
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if (map.toDecodedMap) {
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return new SourceMapConsumer(map.toDecodedMap(), mapUrl);
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}
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// This is a fallback for `source-map` and `source-map-js`
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return new SourceMapConsumer(map.toJSON(), mapUrl);
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}
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get mappings() {
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return encodedMappings(this._map);
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}
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originalPositionFor(needle) {
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return originalPositionFor(this._map, needle);
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}
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generatedPositionFor(originalPosition) {
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return generatedPositionFor(this._map, originalPosition);
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}
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allGeneratedPositionsFor(originalPosition) {
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return allGeneratedPositionsFor(this._map, originalPosition);
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}
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hasContentsOfAllSources() {
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if (!this.sourcesContent || this.sourcesContent.length !== this.sources.length) {
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return false;
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}
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for (const content of this.sourcesContent) {
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if (content == null) {
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return false;
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}
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}
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return true;
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}
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sourceContentFor(source, nullOnMissing) {
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const sourceContent = sourceContentFor(this._map, source);
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if (sourceContent != null) {
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return sourceContent;
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}
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if (nullOnMissing) {
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return null;
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}
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throw new Error(`"${source}" is not in the SourceMap.`);
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}
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eachMapping(callback, context /*, order?: number*/) {
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// order is ignored as @jridgewell/trace-map doesn't implement it
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eachMapping(this._map, context ? callback.bind(context) : callback);
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}
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destroy() {
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// noop.
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}
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}
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class SourceMapGenerator {
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constructor(opts) {
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// TODO :: should this be duck-typed ?
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this._map = opts instanceof GenMapping ? opts : new GenMapping(opts);
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}
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static fromSourceMap(consumer) {
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return new SourceMapGenerator(fromMap(consumer));
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}
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addMapping(mapping) {
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maybeAddMapping(this._map, mapping);
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}
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setSourceContent(source, content) {
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setSourceContent(this._map, source, content);
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}
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toJSON() {
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return toEncodedMap(this._map);
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}
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toString() {
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return JSON.stringify(this.toJSON());
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}
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toDecodedMap() {
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return toDecodedMap(this._map);
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}
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}
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export { SourceMapConsumer, SourceMapGenerator };
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//# sourceMappingURL=source-map.mjs.map
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