Method bufferSlice

src/main/java/net/starlark/java/syntax/Lexer.java:1045–1047

Returns a string containing the part of the source buffer beginning at offset start and ending immediately before offset end (so the length of the resulting string is end - start).

(int start, int end)

   * end - start}).
   */
  String bufferSlice(int start, int end) {
    return new String(this.buffer, start, end - start);
  }

  // TODO(adonovan): don't retain comments unconditionally.
  private Comment addComment(int start, int end) {