// This file is part of Substrate. // Copyright (C) Parity Technologies (UK) Ltd. // SPDX-License-Identifier: Apache-2.0 // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #![no_std] #![no_main] use common::output; use uapi::{HostFn, HostFnImpl as api}; #[no_mangle] #[polkavm_derive::polkavm_export] pub extern "C" fn deploy() {} #[no_mangle] #[polkavm_derive::polkavm_export] pub extern "C" fn call() { // Initialize buffer with 1s so that we can check that it is overwritten. output!(balance, [1u8; 8], api::balance,); // Assert that the balance is 0. assert_eq!(&[0u8; 8], balance); }