wedo2のRubyからBlockの引数による例外の処理

Author: riversunlight

src/lib/ruby-to-blocks-converter/wedo2.js

@@ -11,7 +11,7 @@ const Wedo2Converter = {
         if ((this._isSelf(receiver) || receiver === Opal.nil) && !rubyBlock) {
             switch (name) {
             case 'wedo2_turn_motor_on_for':
-                if (args.length === 2 && this._isString(args[0]) && this._isNumberOrBlock(args[1])){
+                if (args.length === 2 && this._isString(args[0]) && this._isNumberOrBlock(args[1])) {
                     block = this._createBlock('wedo2_motorOnFor', 'statement');
                     this._addInput(
                         block,
@@ -22,24 +22,36 @@ const Wedo2Converter = {
                 }
                 break;
             case 'wedo2_trun_motor_on':
-                block = this._createBlock('wedo2_motorOn', 'statement');
-                this._addInput(block, 'MOTOR_ID', this._createFieldBlock('wedo2_menu_MOTOR_ID', 'MOTOR_ID', args[0]))
+                if (args.length === 1 && this._isString(args[0])) {
+                    block = this._createBlock('wedo2_motorOn', 'statement');
+                    this._addInput(
+                        block, 
+                        'MOTOR_ID', 
+                        this._createFieldBlock('wedo2_menu_MOTOR_ID', 'MOTOR_ID', args[0])
+                    );
+                }
                 break;
             case 'wedo2_trun_motor_off':
-                block = this._createBlock('wedo2_motorOff', 'statement');
-                this._addInput(block, 'MOTOR_ID', this._createFieldBlock('wedo2_menu_MOTOR_ID', 'MOTOR_ID', args[0]))
+                if (args.length === 1 && this._isString(args[0])) {
+                    block = this._createBlock('wedo2_motorOff', 'statement');
+                    this._addInput(
+                        block, 
+                        'MOTOR_ID', 
+                        this._createFieldBlock('wedo2_menu_MOTOR_ID', 'MOTOR_ID', args[0])
+                    );
+                }
                 break;
             case 'wedo2_set_motor_power':
-                if (args.length === 2 && this._isString(args[0]) && this._isNumberOrBlock(args[1])){
+                if (args.length === 2 && this._isString(args[0]) && this._isNumberOrBlock(args[1])) {
                     block = this._createBlock('wedo2_startMotorPower', 'statement');
                     this._addInput(
                         block,
                         'MOTOR_ID',
                         this._createFieldBlock('wedo2_menu_MOTOR_ID', 'MOTOR_ID', args[0])
                     );
                     this._addNumberInput(block, 'POWER', 'math_number', args[1], 100);
-                    break;
                 }
+                break;
             case 'wedo2_set_motor_direction':
                 if (args.length === 2 && this._isString(args[0]) && this._isString(args[1])){
                     block = this._createBlock('wedo2_setMotorDirection', 'statement');