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// Copyright 2014 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.

package pow

import (
    "math/big"

    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/core/types"
)

type Block interface {
    Difficulty() *big.Int
    HashNoNonce() common.Hash
    Nonce() uint64
    MixDigest() common.Hash
    NumberU64() uint64
}

// Copyright 2014 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option
n style="color:#003cff">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>. package core import ( "math/big" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/vm" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/params" ) type Execution struct { env vm.Environment address *common.Address input []byte evm vm.VirtualMachine Gas, price, value *big.Int } func NewExecution(env vm.Environment, address *common.Address, input []byte, gas, gasPrice, value *big.Int) *Execution { exe := &Execution{env: env, address: address, input: input, Gas: gas, price: gasPrice, value: value} exe.evm = vm.NewVm(env) return exe } func (self *Execution) Call(codeAddr common.Address, caller vm.ContextRef) ([]byte, error) { // Retrieve the executing code code := self.env.State().GetCode(codeAddr) return self.exec(&codeAddr, code, caller) } func (self *Execution) Create(caller vm.ContextRef) (ret []byte, err error, account *state.StateObject) { // Input must be nil for create code := self.input self.input = nil ret, err = self.exec(nil, code, caller) // Here we get an error if we run into maximum stack depth, // See: https://github.com/ethereum/yellowpaper/pull/131