mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
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4bfcc1ee5c
Useful for integration with external tools as one can just utilize an interface opposed to having to import and build a real EVM object.
54 lines
2.4 KiB
Go
54 lines
2.4 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum 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 go-ethereum 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 go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package vm
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import (
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"math/big"
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"github.com/holiman/uint256"
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"github.com/ledgerwatch/erigon-lib/chain"
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libcommon "github.com/ledgerwatch/erigon-lib/common"
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"github.com/ledgerwatch/erigon/core/vm/evmtypes"
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)
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// CallContext provides a basic interface for the EVM calling conventions. The EVM
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// depends on this context being implemented for doing subcalls and initialising new EVM contracts.
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type CallContext interface {
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// Call another contract
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Call(env *EVM, me ContractRef, addr libcommon.Address, data []byte, gas, value *big.Int) ([]byte, error)
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// Take another's contract code and execute within our own context
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CallCode(env *EVM, me ContractRef, addr libcommon.Address, data []byte, gas, value *big.Int) ([]byte, error)
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// Same as CallCode except sender and value is propagated from parent to child scope
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DelegateCall(env *EVM, me ContractRef, addr libcommon.Address, data []byte, gas *big.Int) ([]byte, error)
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// Create a new contract
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Create(env *EVM, me ContractRef, data []byte, gas, value *big.Int) ([]byte, libcommon.Address, error)
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}
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type VMInterface interface {
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Reset(txCtx evmtypes.TxContext, ibs evmtypes.IntraBlockState)
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Create(caller ContractRef, code []byte, gas uint64, value *uint256.Int) (ret []byte, contractAddr libcommon.Address, leftOverGas uint64, err error)
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Call(caller ContractRef, addr libcommon.Address, input []byte, gas uint64, value *uint256.Int, bailout bool) (ret []byte, leftOverGas uint64, err error)
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Cancel()
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Config() Config
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ChainConfig() *chain.Config
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ChainRules() *chain.Rules
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Context() evmtypes.BlockContext
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IntraBlockState() evmtypes.IntraBlockState
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TxContext() evmtypes.TxContext
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}
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