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core/state, core/vm: reworked storage get / set to use common.Hash

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This commit is contained in:
obscuren
2015-06-17 11:24:40 +02:00
parent 5721fcf668
commit 787a61bb27
5 changed files with 45 additions and 41 deletions
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15
core/vm/vm.go
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@ -506,14 +506,14 @@ func (self *Vm) Run(context *Context, input []byte) (ret []byte, err error) {
case SLOAD:
loc := common.BigToHash(stack.pop())
val := common.Bytes2Big(statedb.GetState(context.Address(), loc))
val := statedb.GetState(context.Address(), loc).Big()
stack.push(val)
case SSTORE:
loc := common.BigToHash(stack.pop())
val := stack.pop()
statedb.SetState(context.Address(), loc, val)
statedb.SetState(context.Address(), loc, common.BigToHash(val))
case JUMP:
if err := jump(pc, stack.pop()); err != nil {
@ -686,10 +686,10 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
var g *big.Int
y, x := stack.data[stack.len()-2], stack.data[stack.len()-1]
val := statedb.GetState(context.Address(), common.BigToHash(x))
if len(val) == 0 && len(y.Bytes()) > 0 {
if common.EmptyHash(val) && !common.EmptyHash(common.BigToHash(y)) {
// 0 => non 0
g = params.SstoreSetGas
} else if len(val) > 0 && len(y.Bytes()) == 0 {
} else if !common.EmptyHash(val) && common.EmptyHash(common.BigToHash(y)) {
statedb.Refund(params.SstoreRefundGas)
g = params.SstoreClearGas
@ -697,6 +697,13 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
// non 0 => non 0 (or 0 => 0)
g = params.SstoreClearGas
}
/*
if len(val) == 0 && len(y.Bytes()) > 0 {
} else if len(val) > 0 && len(y.Bytes()) == 0 {
} else {
}
*/
gas.Set(g)
case SUICIDE:
if !statedb.IsDeleted(context.Address()) {