Assert rtype

Author: jairov4

mypyc/codegen/emitfunc.py

@@ -73,6 +73,7 @@
 from mypyc.ir.rtypes import (
     RArray,
     RStruct,
+    RInstance,
     RTuple,
     RType,
     is_int32_rprimitive,
@@ -537,6 +538,7 @@ def visit_method_call(self, op: MethodCall) -> None:
     def emit_method_call(self, dest: str, op_obj: Value, name: str, op_args: list[Value]) -> None:
         obj = self.reg(op_obj)
         rtype = op_obj.type
+        assert isinstance(rtype, RInstance)
         class_ir = rtype.class_ir
         method = rtype.class_ir.get_method(name)
         assert method is not None

mypyc/ir/rtypes.py

@@ -64,7 +64,7 @@ class RType:
 
     @abstractmethod
     def accept(self, visitor: RTypeVisitor[T]) -> T:
-        raise NotImplementedError
+        raise NotImplementedError()
 
     def short_name(self) -> str:
         return short_name(self.name)