75 lines
2.5 KiB
Go
75 lines
2.5 KiB
Go
package core
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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/state"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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)
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type VMEnv struct {
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state *state.StateDB
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block *types.Block
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msg Message
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depth int
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chain *ChainManager
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typ vm.Type
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}
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func NewEnv(state *state.StateDB, chain *ChainManager, msg Message, block *types.Block) *VMEnv {
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return &VMEnv{
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chain: chain,
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state: state,
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block: block,
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msg: msg,
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typ: vm.StdVmTy,
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}
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}
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func (self *VMEnv) Origin() common.Address { f, _ := self.msg.From(); return f }
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func (self *VMEnv) BlockNumber() *big.Int { return self.block.Number() }
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func (self *VMEnv) Coinbase() common.Address { return self.block.Coinbase() }
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func (self *VMEnv) Time() int64 { return self.block.Time() }
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func (self *VMEnv) Difficulty() *big.Int { return self.block.Difficulty() }
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func (self *VMEnv) GasLimit() *big.Int { return self.block.GasLimit() }
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func (self *VMEnv) Value() *big.Int { return self.msg.Value() }
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func (self *VMEnv) State() *state.StateDB { return self.state }
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func (self *VMEnv) Depth() int { return self.depth }
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func (self *VMEnv) SetDepth(i int) { self.depth = i }
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func (self *VMEnv) VmType() vm.Type { return self.typ }
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func (self *VMEnv) SetVmType(t vm.Type) { self.typ = t }
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func (self *VMEnv) GetHash(n uint64) common.Hash {
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if block := self.chain.GetBlockByNumber(n); block != nil {
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return block.Hash()
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}
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return common.Hash{}
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}
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func (self *VMEnv) AddLog(log state.Log) {
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self.state.AddLog(log)
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}
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func (self *VMEnv) Transfer(from, to vm.Account, amount *big.Int) error {
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return vm.Transfer(from, to, amount)
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}
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func (self *VMEnv) vm(addr *common.Address, data []byte, gas, price, value *big.Int) *Execution {
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return NewExecution(self, addr, data, gas, price, value)
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}
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func (self *VMEnv) Call(me vm.ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
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exe := self.vm(&addr, data, gas, price, value)
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return exe.Call(addr, me)
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}
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func (self *VMEnv) CallCode(me vm.ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
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maddr := me.Address()
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exe := self.vm(&maddr, data, gas, price, value)
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return exe.Call(addr, me)
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}
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func (self *VMEnv) Create(me vm.ContextRef, data []byte, gas, price, value *big.Int) ([]byte, error, vm.ContextRef) {
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exe := self.vm(nil, data, gas, price, value)
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return exe.Create(me)
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}
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