Method interpolateArguments

packages/blockly/core/block.ts:2045–2090

* Inserts args in place of numerical tokens. String args are converted to * JSON that defines a label field. Newline characters are converted to * end-row inputs, and if necessary an extra dummy input is added to the end * of the elements. * * @param tokens The tokens to interpolate

(
    tokens: Array<string | number>,
    args: Array<AnyDuringMigration | string>,
    implicitAlign: string | undefined,
  )

   * @returns The JSON definitions of field and inputs to add to the block.
   */
  private interpolateArguments(
    tokens: Array<string | number>,
    args: Array<AnyDuringMigration | string>,
    implicitAlign: string | undefined,
  ): AnyDuringMigration[] {
    const elements = [];
    for (let i = 0; i < tokens.length; i++) {
      let element = tokens[i];
      if (typeof element === 'number') {
        element = args[element - 1];
      }
      // Args can be strings, which is why this isn't elseif.
      if (typeof element === 'string') {
        if (element === '\n') {
          // Convert newline tokens to end-row inputs.
          const newlineInput = {'type': 'input_end_row'};
          if (implicitAlign) {
            (newlineInput as AnyDuringMigration)['align'] = implicitAlign;
          }
          element = newlineInput as AnyDuringMigration;
        } else {
          // AnyDuringMigration because:  Type '{ text: string; type: string; }
          // | null' is not assignable to type 'string | number'.
          element = this.stringToFieldJson(element) as AnyDuringMigration;
          if (!element) {
            continue;
          }
        }
      }
      elements.push(element);
    }

    const length = elements.length;
    if (
      length &&
      !this.isInputKeyword((elements as AnyDuringMigration)[length - 1]['type'])
    ) {
      const dummyInput = {'type': 'input_dummy'};
      if (implicitAlign) {
        (dummyInput as AnyDuringMigration)['align'] = implicitAlign;
      }
      elements.push(dummyInput);
    }

    return elements;
  }

  /**
   * Creates a field from the JSON definition of a field. If a field with the