82 lines
3.0 KiB
Go
82 lines
3.0 KiB
Go
// Copyright 2021 Evmos Foundation
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// This file is part of Evmos' Ethermint library.
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//
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// The Ethermint library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The Ethermint library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the Ethermint library. If not, see https://github.com/evmos/ethermint/blob/main/LICENSE
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package vm
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/params"
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"github.com/holiman/uint256"
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)
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// PrecompiledContracts defines a map of address -> precompiled contract
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type PrecompiledContracts map[common.Address]vm.PrecompiledContract
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type StatefulPrecompiledContract interface {
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vm.PrecompiledContract
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RunStateful(evm EVM, addr common.Address, input []byte, value *big.Int) (ret []byte, err error)
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}
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// EVM defines the interface for the Ethereum Virtual Machine used by the EVM module.
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type EVM interface {
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Config() vm.Config
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Context() vm.BlockContext
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TxContext() vm.TxContext
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Reset(txCtx vm.TxContext, statedb vm.StateDB)
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Cancel()
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Cancelled() bool //nolint
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Interpreter() *vm.EVMInterpreter
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Call(caller vm.ContractRef, addr common.Address, input []byte, gas uint64, value *big.Int) (ret []byte, leftOverGas uint64, err error)
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CallCode(caller vm.ContractRef, addr common.Address, input []byte, gas uint64, value *big.Int) (ret []byte, leftOverGas uint64, err error)
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DelegateCall(caller vm.ContractRef, addr common.Address, input []byte, gas uint64) (ret []byte, leftOverGas uint64, err error)
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StaticCall(caller vm.ContractRef, addr common.Address, input []byte, gas uint64) (ret []byte, leftOverGas uint64, err error)
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Create(caller vm.ContractRef, code []byte, gas uint64, value *big.Int) (ret []byte, contractAddr common.Address, leftOverGas uint64, err error)
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Create2(
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caller vm.ContractRef,
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code []byte,
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gas uint64,
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endowment *big.Int,
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salt *uint256.Int) (
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ret []byte, contractAddr common.Address, leftOverGas uint64, err error,
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)
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ChainConfig() *params.ChainConfig
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ActivePrecompiles(rules params.Rules) []common.Address
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Precompile(addr common.Address) (vm.PrecompiledContract, bool)
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RunPrecompiledContract(
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p StatefulPrecompiledContract,
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addr common.Address,
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input []byte,
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suppliedGas uint64,
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value *big.Int) (
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ret []byte, remainingGas uint64, err error,
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)
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}
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// Constructor defines the function used to instantiate the EVM on
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// each state transition.
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type Constructor func(
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blockCtx vm.BlockContext,
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txCtx vm.TxContext,
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stateDB vm.StateDB,
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chainConfig *params.ChainConfig,
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config vm.Config,
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customPrecompiles PrecompiledContracts,
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) EVM
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