Method prettyPrint

valdi/vscode_debugger/src/adapter/sources.ts:208–244

* Pretty-prints the source. Generates a beauitified source map if possible * and it hasn't already been done, and returns the created map and created * ephemeral source. Returns undefined if the source can't be beautified.

()

   * ephemeral source. Returns undefined if the source can't be beautified.
   */
  public async prettyPrint(): Promise<{ map: SourceMap; source: Source } | undefined> {
    if (!this._container || !this.canPrettyPrint()) {
      return undefined;
    }

    if (isSourceWithMap(this) && this.sourceMap.url.endsWith('-pretty.map')) {
      const map = this._container._sourceMaps.get(this.sourceMap?.url)?.map;
      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
      return map && { map, source: [...this.sourceMap.sourceByUrl!.values()][0] };
    }

    const content = await this.content();
    if (!content) {
      return undefined;
    }

    const sourceMapUrl = this.url + '-pretty.map';
    const basename = this.url.split(/[\/\\]/).pop() as string;
    const fileName = basename + '-pretty.js';
    const map = await prettyPrintAsSourceMap(fileName, content, this.url, sourceMapUrl);
    if (!map) {
      return undefined;
    }

    // Note: this overwrites existing source map.
    this.setSourceMapUrl(sourceMapUrl);
    const asCompiled = this as ISourceWithMap;
    const sourceMap: SourceMapData = {
      compiled: new Set([asCompiled]),
      map,
      loaded: Promise.resolve(),
    };
    this._container._sourceMaps.set(sourceMapUrl, sourceMap);
    await this._container._addSourceMapSources(asCompiled, map);
    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
    return { map, source: [...asCompiled.sourceMap.sourceByUrl.values()][0] };
  }

  /**
   * Returns a DAP representation of the source.