Method _normalizePosition

packages/babel-generator/src/buffer.ts:364–376

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

  }

  _normalizePosition(prop: "start" | "end", loc: Loc, columnOffset: number) {
    this._flush();

    const pos = loc[prop];
    if (pos) {
      this.setSourcePosition(
        pos.line,
        // TODO: Fix https://github.com/babel/babel/issues/15712 in downstream
        Math.max(pos.column + columnOffset, 0),
      );
      this._sourcePosition.filename = loc.filename;
    }
  }

  setSourcePosition(line: number, column: number): void {
    const target = this._sourcePosition;