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https://github.com/ethereum/go-ethereum.git
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99853ac3ce
This moves call and create to the specified environments. Vms are no longer re-used. Vm uses environment's Call(Code) and Create in order to execute new contracts or transfer value between accounts. State transition now uses the same mechanism described above.
63 lines
2.1 KiB
Go
63 lines
2.1 KiB
Go
package chain
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/chain/types"
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"github.com/ethereum/go-ethereum/state"
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"github.com/ethereum/go-ethereum/vm"
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)
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type VMEnv struct {
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state *state.State
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block *types.Block
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tx *types.Transaction
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depth int
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}
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func NewEnv(state *state.State, tx *types.Transaction, block *types.Block) *VMEnv {
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return &VMEnv{
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state: state,
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block: block,
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tx: tx,
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}
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}
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func (self *VMEnv) Origin() []byte { return self.tx.Sender() }
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func (self *VMEnv) BlockNumber() *big.Int { return self.block.Number }
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func (self *VMEnv) PrevHash() []byte { return self.block.PrevHash }
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func (self *VMEnv) Coinbase() []byte { 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) BlockHash() []byte { return self.block.Hash() }
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func (self *VMEnv) Value() *big.Int { return self.tx.Value }
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func (self *VMEnv) State() *state.State { return self.state }
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func (self *VMEnv) GasLimit() *big.Int { return self.block.GasLimit }
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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) 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, data []byte, gas, price, value *big.Int) *Execution {
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evm := vm.New(self, vm.DebugVmTy)
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return NewExecution(evm, addr, data, gas, price, value)
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}
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func (self *VMEnv) Call(me vm.ClosureRef, addr, 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.ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error) {
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exe := self.vm(me.Address(), 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.ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error, vm.ClosureRef) {
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exe := self.vm(addr, data, gas, price, value)
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return exe.Create(me)
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}
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