Files
pezkuwi-sdk/bizinikiwi/pezframe/revive/fixtures/contracts/call_own_code_hash.rs
T
pezkuwichain b6d35f6faf chore: add Dijital Kurdistan Tech Institute to copyright headers
Updated 4763 files with dual copyright:
- Parity Technologies (UK) Ltd.
- Dijital Kurdistan Tech Institute
2025-12-27 21:28:36 +03:00

52 lines
1.7 KiB
Rust

// This file is part of Bizinikiwi.
// Copyright (C) Parity Technologies (UK) Ltd. and Dijital Kurdistan Tech Institute
// 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.
//! This fixture calls the `ownCodeHash` function on the
//! `System` pre-compile.
#![allow(unused_imports)]
#![no_std]
#![no_main]
include!("../panic_handler.rs");
use core::num::NonZero;
use uapi::{HostFn, HostFnImpl as api, u256_bytes};
use hex_literal::hex;
#[no_mangle]
#[polkavm_derive::polkavm_export]
pub extern "C" fn deploy() { }
#[no_mangle]
#[polkavm_derive::polkavm_export]
pub extern "C" fn call() {
let mut output_buf = [0u8; 32];
let output = &mut &mut output_buf[..];
let _ = api::call(
uapi::CallFlags::READ_ONLY,
&uapi::SYSTEM_PRECOMPILE_ADDR,
u64::MAX, // How much ref_time to devote for the execution. u64::MAX = use all.
u64::MAX, // How much proof_size to devote for the execution. u64::MAX = use all.
&[u8::MAX; 32], // No deposit limit.
&[0u8; 32], // Value transferred to the contract.
&uapi::solidity_selector("ownCodeHash()"),
Some(output),
).unwrap();
assert_ne!(output_buf, [0u8; 32]);
api::return_value(uapi::ReturnFlags::empty(), &output_buf);
}