Method emit_arg_check

mypyc/codegen/emit.py:982–989

(self, src: str, dest: str, typ: RType, check: str, optional: bool)

        self.emit_label(out_label)

    def emit_arg_check(self, src: str, dest: str, typ: RType, check: str, optional: bool) -> None:
        if optional:
            self.emit_line(f"if ({src} == NULL) {{")
            self.emit_line(f"{dest} = {self.c_error_value(typ)};")
        if check != "":
            self.emit_line("{}if {}".format("} else " if optional else "", check))
        elif optional:
            self.emit_line("else {")

    def emit_unbox(
        self,