precompile_utils/
lib.rs

1// This file is part of Frontier.
2
3// Copyright (c) Moonsong Labs.
4// Copyright (C) Parity Technologies (UK) Ltd.
5// SPDX-License-Identifier: Apache-2.0
6
7// Licensed under the Apache License, Version 2.0 (the "License");
8// you may not use this file except in compliance with the License.
9// You may obtain a copy of the License at
10//
11// 	http://www.apache.org/licenses/LICENSE-2.0
12//
13// Unless required by applicable law or agreed to in writing, software
14// distributed under the License is distributed on an "AS IS" BASIS,
15// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16// See the License for the specific language governing permissions and
17// limitations under the License.
18
19#![cfg_attr(not(feature = "std"), no_std)]
20
21extern crate alloc;
22
23// Allows to use inside this crate `solidity::Codec` derive macro,which depends on
24// `precompile_utils` being in the list of imported crates.
25extern crate self as precompile_utils;
26
27#[doc(hidden)]
28pub mod __alloc {
29	pub use ::alloc::*;
30}
31
32pub mod evm;
33pub mod precompile_set;
34pub mod substrate;
35
36pub mod solidity;
37
38#[cfg(feature = "testing")]
39pub mod testing;
40
41pub use fp_evm::Precompile;
42use fp_evm::PrecompileFailure;
43pub use precompile_utils_macro::{keccak256, precompile, precompile_name_from_address};
44
45/// Alias for Result returning an EVM precompile error.
46pub type EvmResult<T = ()> = Result<T, PrecompileFailure>;
47
48pub mod prelude {
49	pub use {
50		crate::{
51			evm::{
52				handle::PrecompileHandleExt,
53				logs::{log0, log1, log2, log3, log4, LogExt},
54			},
55			precompile_set::DiscriminantResult,
56			solidity::{
57				// We export solidity itself to encourage using `solidity::Codec` to avoid confusion
58				// with parity_scale_codec,
59				self,
60				codec::{
61					Address,
62					BoundedBytes,
63					BoundedString,
64					BoundedVec,
65					// Allow usage of Codec methods while not exporting the name directly.
66					Codec as _,
67					Convert,
68					UnboundedBytes,
69					UnboundedString,
70				},
71				revert::{
72					revert, BacktraceExt, InjectBacktrace, MayRevert, Revert, RevertExt,
73					RevertReason,
74				},
75			},
76			substrate::{RuntimeHelper, TryDispatchError},
77			EvmResult,
78		},
79		alloc::string::String,
80		pallet_evm::{PrecompileHandle, PrecompileOutput},
81		precompile_utils_macro::{keccak256, precompile},
82	};
83}
precompile_utils/lib.rs

precompile_utils/
lib.rs
