source-map.ts•1.36 kB
import { toDecodedMap, toEncodedMap } from '@jridgewell/gen-mapping';
import type { GenMapping } from '@jridgewell/gen-mapping';
import type { DecodedSourceMap, EncodedSourceMap, Options } from './types';
/**
* A SourceMap v3 compatible sourcemap, which only includes fields that were
* provided to it.
*/
export default class SourceMap {
declare file?: string | null;
declare mappings: EncodedSourceMap['mappings'] | DecodedSourceMap['mappings'];
declare sourceRoot?: string;
declare names: string[];
declare sources: (string | null)[];
declare sourcesContent?: (string | null)[];
declare version: 3;
declare ignoreList: number[] | undefined;
constructor(map: GenMapping, options: Options) {
const out = options.decodedMappings ? toDecodedMap(map) : toEncodedMap(map);
this.version = out.version; // SourceMap spec says this should be first.
this.file = out.file;
this.mappings = out.mappings as SourceMap['mappings'];
this.names = out.names as SourceMap['names'];
this.ignoreList = out.ignoreList as SourceMap['ignoreList'];
this.sourceRoot = out.sourceRoot;
this.sources = out.sources as SourceMap['sources'];
if (!options.excludeContent) {
this.sourcesContent = out.sourcesContent as SourceMap['sourcesContent'];
}
}
toString(): string {
return JSON.stringify(this);
}
}