Method throw

crates/wasm/src/js_module.rs:580–593

(
            &self,
            exc_type: PyObjectRef,
            exc_val: OptionalArg,
            exc_tb: OptionalArg,
            vm: &VirtualMachine,
        )

        #[pymethod]
        fn throw(
            &self,
            exc_type: PyObjectRef,
            exc_val: OptionalArg,
            exc_tb: OptionalArg,
            vm: &VirtualMachine,
        ) -> PyResult {
            let err = vm.normalize_exception(
                exc_type,
                exc_val.unwrap_or_none(vm),
                exc_tb.unwrap_or_none(vm),
            )?;
            Err(err)
        }
    }

    impl SelfIter for AwaitPromise {}