Merge pull request #146 from Vardan2009/master

Fix `Runtime Error: No cases matched` issue.

core/interpreter.py

@@ -834,7 +834,8 @@ def visit_SwitchNode(self, node: SwitchNode, context: Context) -> RTResult[Value
             if res.should_return():
                 return res
             return res.success(Null.null())
-        return res.failure(RTError(node.pos_start, node.subject_node.pos_end, "No cases matched", context))
+
+        return res.success(Null.null())
 
     def visit_FallthroughNode(self, node: FallthroughNode, context: Context) -> RTResult[Value]:
         return RTResult[Value]().success(Null.null()).fallthrough()

tests/modules2.rn.json

@@ -0,0 +1 @@
+{"code": 0, "stdout": "A\nr\nr\na\ny\n", "stderr": ""}

tests/switch-case.rn

@@ -20,15 +20,9 @@ test(5)
 test(4)
 
 print("---------------")
-try {
-    switch 69 {
-        case 1 {
-            print("unreachable")
-        }
-    }
-    print("unreachable")
-} catch as e {
-    print(e)
+switch 69 {
+    case 1 -> print("unreachable")
+    default -> print("no cases matched")
 }
 print("---------------")
 

tests/switch-case.rn.json

@@ -1 +1 @@
-{"code": 0, "stdout": "It's a five!\nIt's a one!\nIt's a two!\nhaha funi\nI don't know what 42 is\nIt's a five!\nIt's a four!\n---------------\nRuntimeError: No cases matched\n---------------\ndefault: 1\nA two or a three\nA two or a three\ndefault: 4\n---------------\n0 1\none\n1 2\nfirst two\n2 3\nthree or second two\n3 2\nthree or second two\n4 5\ndefault\n", "stderr": ""}
+{"code": 0, "stdout": "It's a five!\nIt's a one!\nIt's a two!\nhaha funi\nI don't know what 42 is\nIt's a five!\nIt's a four!\n---------------\nno cases matched\n---------------\ndefault: 1\nA two or a three\nA two or a three\ndefault: 4\n---------------\n0 1\none\n1 2\nfirst two\n2 3\nthree or second two\n3 2\nthree or second two\n4 5\ndefault\n", "stderr": ""}