A help please

HIFI_APPS · January 13, 2021, 9:21am

i am learning extension development in my case i want the java code of
controls_do_then_return
it is in control built in

github.com

mit-cml/appinventor-sources/blob/master/appinventor/blocklyeditor/src/blocks/control.js

// -*- mode: java; c-basic-offset: 2; -*-
// Copyright 2013-2014 MIT, All rights reserved
// Released under the Apache License, Version 2.0
// http://www.apache.org/licenses/LICENSE-2.0
/**
 * @fileoverview Control blocks for Blockly, modified for App Inventor
 * @author fraser@google.com (Neil Fraser)
 * @author andrew.f.mckinney@gmail.com (Andrew F. McKinney)
 * Due to the frequency of long strings, the 80-column wrap rule need not apply
 * to language files.
 */

/**
 * Lyn's History:
 * [lyn, written 11/16-17/13, added 07/01/14] Added freeVariables, renameFree, and renameBound to forRange and forEach loops
 * [lyn, 10/27/13] Specify direction of flydowns
 * [lyn, 10/25/13] Made collapsed block labels more sensible.
 * [lyn, 10/10-14/13]
 *   + Installed flydown index variable declarations in forRange and forEach loops
 *   + Abstracted over string labels on all blocks using constants defined in en/_messages.js

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the git hub source is written in js,can you specify the right code i need

ewpatton · January 13, 2021, 1:44pm

ewpatton · January 13, 2021, 1:47pm

Extensions can only be made from components. The block in question is a built-in block, so replicating its functionality in an extension isn't possible. The JavaScript for generating YAIL (App Inventor's intermediate language) is under blocklyeditor/src/generators/yail/. The code that is generated is not Java. In the case of the do-result block, it produces the following YAIL:

(begin
  STMT...
  VALUE)

where STMT is the code generated by the content of the do section of the block and VALUE is the result part of the block.

HIFI_APPS · January 13, 2021, 2:22pm

Thanks so i will ask user to put such blocks

system · January 20, 2021, 2:23pm

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