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vm: support Map in PICKITEM and SETITEM

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This commit is contained in:
Evgenii Stratonikov 2019-09-24 15:58:31 +03:00
parent d7bb50c609
commit 8b6bddca3c
2 changed files with 53 additions and 11 deletions
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31
pkg/vm/vm.go
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@ -705,11 +705,11 @@ func (v *VM) execute(ctx *Context, op Instruction) {
v.estack.PushVal(l)
case PICKITEM:
var (
key = v.estack.Pop()
obj = v.estack.Pop()
index = int(key.BigInt().Int64())
)
key := v.estack.Pop()
validateMapKey(key)
obj := v.estack.Pop()
index := int(key.BigInt().Int64())
switch t := obj.value.(type) {
// Struct and Array items have their underlying value as []StackItem.
@ -720,6 +720,12 @@ func (v *VM) execute(ctx *Context, op Instruction) {
}
item := arr[index]
v.estack.PushVal(item)
case *MapItem:
if !t.Has(key.value) {
panic("invalid key")
}
k := toMapKey(key.value)
v.estack.Push(&Element{value: t.value[k]})
default:
arr := obj.Bytes()
if index < 0 || index >= len(arr) {
@ -730,21 +736,24 @@ func (v *VM) execute(ctx *Context, op Instruction) {
}
case SETITEM:
var (
item = v.estack.Pop().value
key = v.estack.Pop()
obj = v.estack.Pop()
index = int(key.BigInt().Int64())
)
item := v.estack.Pop().value
key := v.estack.Pop()
validateMapKey(key)
obj := v.estack.Pop()
switch t := obj.value.(type) {
// Struct and Array items have their underlying value as []StackItem.
case *ArrayItem, *StructItem:
arr := t.Value().([]StackItem)
index := int(key.BigInt().Int64())
if index < 0 || index >= len(arr) {
panic("SETITEM: invalid index")
}
arr[index] = item
case *MapItem:
t.Add(key.value, item)
default:
panic(fmt.Sprintf("SETITEM: invalid item type %s", t))
}

33
pkg/vm/vm_test.go
View file

@ -646,6 +646,39 @@ func TestPICKITEMByteArray(t *testing.T) {
assert.Equal(t, makeStackItem(2), vm.estack.Pop().value)
}
func TestPICKITEMMap(t *testing.T) {
prog := makeProgram(PICKITEM)
vm := load(prog)
m := NewMapItem()
m.Add(makeStackItem(5), makeStackItem(3))
vm.estack.Push(&Element{value: m})
vm.estack.PushVal(makeStackItem(5))
vm.Run()
assert.Equal(t, false, vm.HasFailed())
assert.Equal(t, 1, vm.estack.Len())
assert.Equal(t, makeStackItem(3), vm.estack.Pop().value)
}
func TestSETITEMMap(t *testing.T) {
prog := makeProgram(SETITEM, PICKITEM)
vm := load(prog)
m := NewMapItem()
m.Add(makeStackItem(5), makeStackItem(3))
vm.estack.Push(&Element{value: m})
vm.estack.PushVal(5)
vm.estack.Push(&Element{value: m})
vm.estack.PushVal(5)
vm.estack.PushVal([]byte{0, 1})
vm.Run()
assert.Equal(t, false, vm.HasFailed())
assert.Equal(t, 1, vm.estack.Len())
assert.Equal(t, makeStackItem([]byte{0, 1}), vm.estack.Pop().value)
}
func TestSIZENoArgument(t *testing.T) {
prog := makeProgram(SIZE)
vm := load(prog)