github.com/MetalBlockchain/subnet-evm@v0.4.9/core/types.go (about)

     1  // (c) 2019-2020, Ava Labs, Inc.
     2  //
     3  // This file is a derived work, based on the go-ethereum library whose original
     4  // notices appear below.
     5  //
     6  // It is distributed under a license compatible with the licensing terms of the
     7  // original code from which it is derived.
     8  //
     9  // Much love to the original authors for their work.
    10  // **********
    11  // Copyright 2015 The go-ethereum Authors
    12  // This file is part of the go-ethereum library.
    13  //
    14  // The go-ethereum library is free software: you can redistribute it and/or modify
    15  // it under the terms of the GNU Lesser General Public License as published by
    16  // the Free Software Foundation, either version 3 of the License, or
    17  // (at your option) any later version.
    18  //
    19  // The go-ethereum library is distributed in the hope that it will be useful,
    20  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    21  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    22  // GNU Lesser General Public License for more details.
    23  //
    24  // You should have received a copy of the GNU Lesser General Public License
    25  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    26  
    27  package core
    28  
    29  import (
    30  	"github.com/MetalBlockchain/subnet-evm/core/state"
    31  	"github.com/MetalBlockchain/subnet-evm/core/types"
    32  	"github.com/MetalBlockchain/subnet-evm/core/vm"
    33  )
    34  
    35  // Validator is an interface which defines the standard for block validation. It
    36  // is only responsible for validating block contents, as the header validation is
    37  // done by the specific consensus engines.
    38  type Validator interface {
    39  	// ValidateBody validates the given block's content.
    40  	ValidateBody(block *types.Block) error
    41  
    42  	// ValidateState validates the given statedb and optionally the receipts and
    43  	// gas used.
    44  	ValidateState(block *types.Block, state *state.StateDB, receipts types.Receipts, usedGas uint64) error
    45  }
    46  
    47  // Prefetcher is an interface for pre-caching transaction signatures and state.
    48  type Prefetcher interface {
    49  	// Prefetch processes the state changes according to the Ethereum rules by running
    50  	// the transaction messages using the statedb, but any changes are discarded. The
    51  	// only goal is to pre-cache transaction signatures and state trie nodes.
    52  	Prefetch(block *types.Block, statedb *state.StateDB, cfg vm.Config, interrupt *uint32)
    53  }
    54  
    55  // Processor is an interface for processing blocks using a given initial state.
    56  type Processor interface {
    57  	// Process processes the state changes according to the Ethereum rules by running
    58  	// the transaction messages using the statedb and applying any rewards to both
    59  	// the processor (coinbase) and any included uncles.
    60  	Process(block *types.Block, parent *types.Header, statedb *state.StateDB, cfg vm.Config) (types.Receipts, []*types.Log, uint64, error)
    61  }