pezkuwichain
b6d35f6faf
Updated 4763 files with dual copyright: - Parity Technologies (UK) Ltd. - Dijital Kurdistan Tech Institute
43 lines
1.4 KiB
Rust
43 lines
1.4 KiB
Rust
// This file is part of Bizinikiwi.
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// Copyright (C) Parity Technologies (UK) Ltd. and Dijital Kurdistan Tech Institute
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// SPDX-License-Identifier: Apache-2.0
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//! Call chain extension by passing through input and output of this contract.
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#![no_std]
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#![no_main]
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use common::input;
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use uapi::{HostFn, HostFnImpl as api};
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#[no_mangle]
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#[polkavm_derive::polkavm_export]
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pub extern "C" fn deploy() {}
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#[no_mangle]
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#[polkavm_derive::polkavm_export]
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pub extern "C" fn call() {
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input!(input, 8, func_id: u32,);
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// the chain extension passes through the input and returns it as output
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let mut output_buffer = [0u8; 32];
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let output = &mut &mut output_buffer[0..input.len()];
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let ret_id = api::call_chain_extension(func_id, input, Some(output));
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assert_eq!(ret_id, func_id);
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api::return_value(uapi::ReturnFlags::empty(), output);
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}
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