Merge branch 'split' into develop

1 files changed, 20 insertions, 5 deletions

diff --git a/ethchain/closure.go b/ethchain/closure.go
index 2e809aa9d..8e57a0d03 100644
--- a/ethchain/closure.go
+++ b/ethchain/closure.go
@@ -12,7 +12,7 @@ type Callee interface {
 	Address() []byte
 }
 
-type ClosureBody interface {
+type Reference interface {
 	Callee
 	ethutil.RlpEncodable
 	GetMem(*big.Int) *ethutil.Value
@@ -22,7 +22,8 @@ type ClosureBody interface {
 // Basic inline closure object which implement the 'closure' interface
 type Closure struct {
 	callee Callee
-	object ClosureBody
+	object Reference
+	Script []byte
 	State  *State
 
 	Gas   *big.Int
@@ -32,8 +33,8 @@ type Closure struct {
 }
 
 // Create a new closure for the given data items
-func NewClosure(callee Callee, object ClosureBody, state *State, gas, val *big.Int) *Closure {
-	return &Closure{callee, object, state, gas, val, nil}
+func NewClosure(callee Callee, object Reference, script []byte, state *State, gas, val *big.Int) *Closure {
+	return &Closure{callee, object, script, state, gas, val, nil}
 }
 
 // Retuns the x element in data slice
@@ -46,6 +47,20 @@ func (c *Closure) GetMem(x *big.Int) *ethutil.Value {
 	return m
 }
 
+func (c *Closure) Get(x *big.Int) *ethutil.Value {
+	return c.Gets(x, big.NewInt(1))
+}
+
+func (c *Closure) Gets(x, y *big.Int) *ethutil.Value {
+	if x.Int64() > int64(len(c.Script)) || y.Int64() > int64(len(c.Script)) {
+		return ethutil.NewValue(0)
+	}
+
+	partial := c.Script[x.Int64() : x.Int64()+y.Int64()]
+
+	return ethutil.NewValue(partial)
+}
+
 func (c *Closure) SetMem(x *big.Int, val *ethutil.Value) {
 	c.object.SetMem(x, val)
 }
@@ -81,7 +96,7 @@ func (c *Closure) ReturnGas(gas *big.Int, state *State) {
 	c.Gas.Add(c.Gas, gas)
 }
 
-func (c *Closure) Object() ClosureBody {
+func (c *Closure) Object() Reference {
 	return c.object
 }