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@@ -1,7 +1,5 @@
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package vm
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-// TODO Re write VM to use values instead of big integers?
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-
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import (
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"math/big"
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@@ -17,7 +15,6 @@ type ClosureRef interface {
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SetStorage(*big.Int, *ethutil.Value)
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}
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-// Basic inline closure object which implement the 'closure' interface
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type Closure struct {
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caller ClosureRef
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object ClosureRef
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@@ -44,18 +41,8 @@ func NewClosure(msg *state.Message, caller ClosureRef, object ClosureRef, code [
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return c
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}
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-// Retuns the x element in data slice
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-func (c *Closure) GetStorage(x *big.Int) *ethutil.Value {
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- m := c.object.GetStorage(x)
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- if m == nil {
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- return ethutil.EmptyValue()
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- }
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-
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- return m
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-}
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-
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-func (c *Closure) Get(x *big.Int) *ethutil.Value {
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- return c.Gets(x, big.NewInt(1))
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+func (c *Closure) GetValue(x *big.Int) *ethutil.Value {
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+ return c.GetRangeValue(x, big.NewInt(1))
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}
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func (c *Closure) GetOp(x int) OpCode {
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@@ -78,7 +65,7 @@ func (c *Closure) GetBytes(x, y int) []byte {
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return c.Code[x : x+y]
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}
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-func (c *Closure) Gets(x, y *big.Int) *ethutil.Value {
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+func (c *Closure) GetRangeValue(x, y *big.Int) *ethutil.Value {
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if x.Int64() >= int64(len(c.Code)) || y.Int64() >= int64(len(c.Code)) {
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return ethutil.NewValue(0)
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}
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@@ -88,27 +75,21 @@ func (c *Closure) Gets(x, y *big.Int) *ethutil.Value {
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return ethutil.NewValue(partial)
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}
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-func (self *Closure) SetCode(code []byte) {
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- self.Code = code
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-}
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-
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+/*
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+ * State storage functions
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+ */
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func (c *Closure) SetStorage(x *big.Int, val *ethutil.Value) {
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c.object.SetStorage(x, val)
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}
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-func (c *Closure) Address() []byte {
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- return c.object.Address()
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-}
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-
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-/*
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-func (c *Closure) Call(vm VirtualMachine, args []byte) ([]byte, *big.Int, error) {
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- c.Args = args
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-
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- ret, err := vm.RunClosure(c)
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+func (c *Closure) GetStorage(x *big.Int) *ethutil.Value {
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+ m := c.object.GetStorage(x)
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+ if m == nil {
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+ return ethutil.EmptyValue()
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+ }
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- return ret, c.UsedGas, err
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+ return m
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}
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-*/
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func (c *Closure) Return(ret []byte) []byte {
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// Return the remaining gas to the caller
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@@ -117,6 +98,9 @@ func (c *Closure) Return(ret []byte) []byte {
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return ret
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}
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+/*
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+ * Gas functions
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+ */
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func (c *Closure) UseGas(gas *big.Int) bool {
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if c.Gas.Cmp(gas) < 0 {
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return false
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@@ -136,6 +120,17 @@ func (c *Closure) ReturnGas(gas, price *big.Int) {
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c.UsedGas.Sub(c.UsedGas, gas)
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}
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+/*
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+ * Set / Get
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+ */
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func (c *Closure) Caller() ClosureRef {
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return c.caller
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}
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+
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+func (c *Closure) Address() []byte {
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+ return c.object.Address()
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+}
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+
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+func (self *Closure) SetCode(code []byte) {
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+ self.Code = code
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+}
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