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https://github.com/pezkuwichain/pezkuwi-subxt.git
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PG Herveou
bd80dcf685
- Translate all pallet-contracts fixtures from `wat` to Rust files. - Fix read_sandbox_memory_as to not use MaxEncodedLen as this could break if used with types with a non-fixed encoded len. --------- Co-authored-by: alvicsam <alvicsam@gmail.com> Co-authored-by: Alexander Samusev <41779041+alvicsam@users.noreply.github.com> Co-authored-by: Alexander Theißen <alex.theissen@me.com> Co-authored-by: command-bot <>
85 lines
2.6 KiB
Rust
85 lines
2.6 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) Parity Technologies (UK) Ltd.
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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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#![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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/// Called by the tests.
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///
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/// The `call` function expects data in a certain format in the input buffer.
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///
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/// 1. The first byte encodes an identifier for the crypto hash function under test. (*)
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/// 2. The rest encodes the input data that is directly fed into the crypto hash function chosen in
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/// 1.
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///
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/// The `deploy` function then computes the chosen crypto hash function
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/// given the input and puts the result into the output buffer.
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/// After contract execution the test driver then asserts that the returned
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/// values are equal to the expected bytes for the input and chosen hash
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/// function.
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///
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/// (*) The possible value for the crypto hash identifiers can be found below:
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///
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/// | value | Algorithm | Bit Width |
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/// |-------|-----------|-----------|
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/// | 0 | SHA2 | 256 |
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/// | 1 | KECCAK | 256 |
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/// | 2 | BLAKE2 | 256 |
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/// | 3 | BLAKE2 | 128 |
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/// ---------------------------------
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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!(
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256,
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chosen_hash_fn: u8,
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input: [u8],
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);
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match chosen_hash_fn {
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1 => {
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let mut output = [0u8; 32];
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api::hash_sha2_256(input, &mut output);
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api::return_value(uapi::ReturnFlags::empty(), &output);
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},
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2 => {
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let mut output = [0u8; 32];
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api::hash_keccak_256(input, &mut output);
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api::return_value(uapi::ReturnFlags::empty(), &output);
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},
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3 => {
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let mut output = [0u8; 32];
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api::hash_blake2_256(input, &mut output);
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api::return_value(uapi::ReturnFlags::empty(), &output);
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},
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4 => {
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let mut output = [0u8; 16];
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api::hash_blake2_128(input, &mut output);
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api::return_value(uapi::ReturnFlags::empty(), &output);
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},
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_ => panic!("unknown crypto hash function identifier"),
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}
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}
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