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destroy_and_transfer.rs
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destroy_and_transfer.rs
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// 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::input;
use uapi::{HostFn, HostFnImpl as api};
const ADDRESS_KEY: [u8; 32] = [0u8; 32];
const VALUE: [u8; 8] = [0, 0, 1u8, 0, 0, 0, 0, 0];
#[no_mangle]
#[polkavm_derive::polkavm_export]
pub extern "C" fn deploy() {
input!(code_hash: [u8; 32],);
let input = [0u8; 0];
let mut address = [0u8; 32];
let address = &mut &mut address[..];
let salt = [71u8, 17u8];
api::instantiate_v2(
code_hash,
0u64, // How much ref_time weight to devote for the execution. 0 = all.
0u64, // How much proof_size weight to devote for the execution. 0 = all.
None, // No deposit limit.
&VALUE,
&input,
Some(address),
None,
&salt,
)
.unwrap();
// Return the deployed contract address.
api::set_storage(&ADDRESS_KEY, address);
}
#[no_mangle]
#[polkavm_derive::polkavm_export]
pub extern "C" fn call() {
let mut callee_addr = [0u8; 32];
let callee_addr = &mut &mut callee_addr[..];
api::get_storage(&ADDRESS_KEY, callee_addr).unwrap();
// Calling the destination contract with non-empty input data should fail.
let res = api::call_v2(
uapi::CallFlags::empty(),
callee_addr,
0u64, // How much ref_time weight to devote for the execution. 0 = all.
0u64, // How much proof_size weight to devote for the execution. 0 = all.
None, // No deposit limit.
&VALUE,
&[0u8; 1],
None,
);
assert!(matches!(res, Err(uapi::ReturnErrorCode::CalleeTrapped)));
// Call the destination contract regularly, forcing it to self-destruct.
api::call_v2(
uapi::CallFlags::empty(),
callee_addr,
0u64, // How much ref_time weight to devote for the execution. 0 = all.
0u64, // How much proof_size weight to devote for the execution. 0 = all.
None, // No deposit limit.
&VALUE,
&[0u8; 0],
None,
)
.unwrap();
}