Method replaceNode

packages/core/schematics/utils/change_tracker.ts:82–95

* Replaces the text of an AST node with a new one. * @param oldNode Node to be replaced. * @param newNode New node to be inserted. * @param emitHint Hint when formatting the text of the new node. * @param sourceFileWhenPrinting File to use when printing out the new node. This is importan

(
    oldNode: ts.Node,
    newNode: ts.Node,
    emitHint = ts.EmitHint.Unspecified,
    sourceFileWhenPrinting?: ts.SourceFile,
  )

   * without it.
   */
  replaceNode(
    oldNode: ts.Node,
    newNode: ts.Node,
    emitHint = ts.EmitHint.Unspecified,
    sourceFileWhenPrinting?: ts.SourceFile,
  ): void {
    const sourceFile = oldNode.getSourceFile();
    this.replaceText(
      sourceFile,
      oldNode.getStart(),
      oldNode.getWidth(),
      this._printer.printNode(emitHint, newNode, sourceFileWhenPrinting || sourceFile),
    );
  }

  /**
   * Removes the text of an AST node from a file.