github.com/clem109/go-ethereum@v1.8.3-0.20180316121352-fe6cf00f480a/core/types.go (about)

     1  // Copyright 2015 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package core
    18  
    19  import (
    20  	"github.com/ethereum/go-ethereum/core/state"
    21  	"github.com/ethereum/go-ethereum/core/types"
    22  	"github.com/ethereum/go-ethereum/core/vm"
    23  )
    24  
    25  // Validator is an interface which defines the standard for block validation. It
    26  // is only responsible for validating block contents, as the header validation is
    27  // done by the specific consensus engines.
    28  //
    29  type Validator interface {
    30  	// ValidateBody validates the given block's content.
    31  	ValidateBody(block *types.Block) error
    32  
    33  	// ValidateState validates the given statedb and optionally the receipts and
    34  	// gas used.
    35  	ValidateState(block, parent *types.Block, state *state.StateDB, receipts types.Receipts, usedGas uint64) error
    36  }
    37  
    38  // Processor is an interface for processing blocks using a given initial state.
    39  //
    40  // Process takes the block to be processed and the statedb upon which the
    41  // initial state is based. It should return the receipts generated, amount
    42  // of gas used in the process and return an error if any of the internal rules
    43  // failed.
    44  type Processor interface {
    45  	Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, []*types.Log, uint64, error)
    46  }