Method source

packages/babel-generator/src/buffer.ts:346–352

* Sets a given position as the current source location so generated code after this call * will be given this position in the sourcemap.

(prop: "start" | "end", loc: Loc)

   */

  source(prop: "start" | "end", loc: Loc): void {
    if (!this._map) return;

    // Since this is called extremely often, we reuse the same _sourcePosition
    // object for the whole lifetime of the buffer.
    this._normalizePosition(prop, loc, 0);
  }

  sourceWithOffset(
    prop: "start" | "end",