fix: support nil some methods

Author: takaokouji

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

@@ -509,6 +509,10 @@ class RubyToBlocksConverter {
         return value === false || (value && value.type === 'false');
     }
 
+    isNil (value) {
+        return value === Opal.nil || (value && value.type === 'nil');
+    }
+
     _isArray (value) {
         return _.isArray(value) || (value && value.type === 'array');
     }
@@ -1274,6 +1278,10 @@ class RubyToBlocksConverter {
         return new Primitive('hash', new Map(node.children.map(childNode => this._process(childNode))), node);
     }
 
+    _onNil (node) {
+        return new Primitive('nil', Opal.nil, node);
+    }
+
     _onPair (node) {
         this._checkNumChildren(node, 2);
 

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

@@ -68,8 +68,8 @@ const KoshienConverter = {
 
             if (!checkPosition(src)) return null;
             if (!checkPosition(dst)) return null;
-            if (!converter.isListBlock(exceptCells)) return null;
-            if (!converter.isListBlock(result)) return null;
+            if (!converter.isListBlock(exceptCells) && !converter.isNil(exceptCells)) return null;
+            if (!converter.isListBlock(result) && !converter.isNil(result)) return null;
 
             const block = converter.changeRubyExpressionBlock(receiver, 'koshien_calcRoute', 'statement');
             converter.addTextInput(block, 'SRC', src, '0:0');
@@ -113,7 +113,7 @@ const KoshienConverter = {
             const {receiver, args} = params;
 
             if (!checkPosition(args[0])) return null;
-            if (!converter.isVariableBlock(args[1])) return null;
+            if (!converter.isVariableBlock(args[1]) && !converter.isNil(args[1])) return null;
 
             const block = converter.changeRubyExpressionBlock(receiver, 'koshien_mapFrom', 'value');
             converter.addTextInput(block, 'POSITION', args[0], '0:0');
@@ -133,7 +133,7 @@ const KoshienConverter = {
             if (!converter.isNumberOrBlock(sqSize)) return null;
             if (!checkPosition(cent)) return null;
             if (!converter.isStringOrBlock(objects)) return null;
-            if (!converter.isListBlock(result)) return null;
+            if (!converter.isListBlock(result) && !converter.isNil(result)) return null;
 
             const block = converter.changeRubyExpressionBlock(receiver, 'koshien_locateObjects', 'statement');
             converter.addNumberInput(block, 'SQ_SIZE', 'math_number', sqSize, 0);

test/integration/ruby-tab/extension_koshien.test.js

@@ -33,12 +33,15 @@ describe('Ruby Tab: Koshien extension blocks', () => {
             koshien.get_map_area("0:1")
             koshien.move_to("2:3")
             koshien.calc_route(result: list("$最短経路"), src: "4:5", dst: "6:7", except_cells: list("$通らない座標"))
+            koshien.calc_route(result: nil, src: "4:5", dst: "6:7", except_cells: nil)
             koshien.set_dynamite("8:9")
             koshien.set_bomb("10:11")
             $マップ情報 = koshien.map("12:13")
             $すべてのマップ情報 = koshien.map_all
             $マップ情報 = koshien.map_from("14:0", $すべてのマップ情報)
+            $マップ情報 = koshien.map_from("14:0", nil)
             koshien.locate_objects(result: list("$地形・アイテム"), sq_size: 3, cent: "1:2", objects: "A B C D")
+            koshien.locate_objects(result: nil, sq_size: 3, cent: "1:2", objects: "A B C D")
             koshien.turn_over
 
             koshien.position_of_x("0:1")