Method close

src/main/java/com/google/gson/stream/JsonWriter.java:273–286

Closes the current scope by appending any necessary whitespace and the given bracket.

(JsonScope empty, JsonScope nonempty, String closeBracket)

   * given bracket.
   */
  private JsonWriter close(JsonScope empty, JsonScope nonempty, String closeBracket)
      throws IOException {
    JsonScope context = peek();
    if (context != nonempty && context != empty) {
      throw new IllegalStateException("Nesting problem: " + stack);
    }

    stack.remove(stack.size() - 1);
    if (context == nonempty) {
      newline();
    }
    out.write(closeBracket);
    return this;
  }

  /**
   * Returns the value on the top of the stack.