77 lines
2.4 KiB
Plaintext
77 lines
2.4 KiB
Plaintext
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// @flow
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import type { ParsedMap, VLQMap, SourceMapStringifyOptions, IndexedMapping, GenerateEmptyMapOptions } from './types';
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import path from 'path';
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import SourceMap from './SourceMap';
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const bindings = require('../parcel_sourcemap_node/index');
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export default class NodeSourceMap extends SourceMap {
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constructor(projectRoot: string = '/', buffer?: Buffer) {
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super(projectRoot);
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this.projectRoot = projectRoot;
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this.sourceMapInstance = new bindings.SourceMap(projectRoot, buffer);
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}
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addVLQMap(map: VLQMap, lineOffset: number = 0, columnOffset: number = 0): SourceMap {
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let { sourcesContent, sources = [], mappings, names = [] } = map;
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if (!sourcesContent) {
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sourcesContent = sources.map(() => '');
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} else {
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sourcesContent = sourcesContent.map((content) => (content ? content : ''));
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}
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this.sourceMapInstance.addVLQMap(
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mappings,
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JSON.stringify(sources),
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JSON.stringify(sourcesContent.map((content) => (content ? content : ''))),
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JSON.stringify(names),
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lineOffset,
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columnOffset
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);
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return this;
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}
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addSourceMap(sourcemap: SourceMap, lineOffset: number = 0): SourceMap {
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if (!(sourcemap.sourceMapInstance instanceof bindings.SourceMap)) {
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throw new Error('The sourcemap provided to addSourceMap is not a valid sourcemap instance');
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}
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this.sourceMapInstance.addSourceMap(sourcemap.sourceMapInstance, lineOffset);
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return this;
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}
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addBuffer(buffer: Buffer, lineOffset: number = 0): SourceMap {
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let previousMap = new NodeSourceMap(this.projectRoot, buffer);
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return this.addSourceMap(previousMap, lineOffset);
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}
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extends(input: Buffer | SourceMap): SourceMap {
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// $FlowFixMe
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let inputSourceMap: SourceMap = Buffer.isBuffer(input) ? new NodeSourceMap(this.projectRoot, input) : input;
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this.sourceMapInstance.extends(inputSourceMap.sourceMapInstance);
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return this;
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}
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getNames(): Array<string> {
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return JSON.parse(this.sourceMapInstance.getNames());
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}
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getSources(): Array<string> {
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return JSON.parse(this.sourceMapInstance.getSources());
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}
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delete() {}
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static generateEmptyMap({
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projectRoot,
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sourceName,
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sourceContent,
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lineOffset = 0,
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}: GenerateEmptyMapOptions): NodeSourceMap {
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let map = new NodeSourceMap(projectRoot);
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map.addEmptyMap(sourceName, sourceContent, lineOffset);
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return map;
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}
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}
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export const init: Promise<void> = Promise.resolve();
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