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instantiate_return_code.rs
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instantiate_return_code.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};
#[no_mangle]
#[polkavm_derive::polkavm_export]
pub extern "C" fn deploy() {}
#[no_mangle]
#[polkavm_derive::polkavm_export]
pub extern "C" fn call() {
input!(buffer, 36, code_hash: [u8; 32],);
let input = &buffer[32..];
let err_code = match 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.
&10_000u64.to_le_bytes(), // Value to transfer.
input,
None,
None,
&[0u8; 0], // Empty salt.
) {
Ok(_) => 0u32,
Err(code) => code as u32,
};
// Exit with success and take transfer return code to the output buffer.
api::return_value(uapi::ReturnFlags::empty(), &err_code.to_le_bytes());
}