Class MethodCall

mypyc/ir/ops.py:660–688

Native method call obj.method(arg, ...)

@final
class MethodCall(RegisterOp):
    """Native method call obj.method(arg, ...)"""

    def __init__(self, obj: Value, method: str, args: list[Value], line: int = -1) -> None:
        self.obj = obj
        self.method = method
        self.args = args
        assert isinstance(obj.type, RInstance), "Methods can only be called on instances"
        self.receiver_type = obj.type
        method_ir = self.receiver_type.class_ir.method_sig(method)
        assert method_ir is not None, "{} doesn't have method {}".format(
            self.receiver_type.name, method
        )
        ret_type = method_ir.ret_type
        self.type = ret_type
        if not ret_type.error_overlap:
            self.error_kind = ERR_MAGIC
        else:
            self.error_kind = ERR_MAGIC_OVERLAPPING
        super().__init__(line)

    def sources(self) -> list[Value]:
        return self.args.copy() + [self.obj]

    def set_sources(self, new: list[Value]) -> None:
        *self.args, self.obj = new

    def accept(self, visitor: OpVisitor[T]) -> T:
        return visitor.visit_method_call(self)


@final