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vm: support Map in REMOVE

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This commit is contained in:
Evgenii Stratonikov 2019-09-24 16:16:24 +03:00
parent 8b6bddca3c
commit c0be2b2a99
2 changed files with 30 additions and 5 deletions
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18
pkg/vm/vm.go
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@ -766,23 +766,31 @@ func (v *VM) execute(ctx *Context, op Instruction) {
}
}
case REMOVE:
key := int(v.estack.Pop().BigInt().Int64())
key := v.estack.Pop()
validateMapKey(key)
elem := v.estack.Pop()
switch t := elem.value.(type) {
case *ArrayItem:
a := t.value
if key < 0 || key >= len(a) {
k := int(key.BigInt().Int64())
if k < 0 || k >= len(a) {
panic("REMOVE: invalid index")
}
a = append(a[:key], a[key+1:]...)
a = append(a[:k], a[k+1:]...)
t.value = a
case *StructItem:
a := t.value
if key < 0 || key >= len(a) {
k := int(key.BigInt().Int64())
if k < 0 || k >= len(a) {
panic("REMOVE: invalid index")
}
a = append(a[:key], a[key+1:]...)
a = append(a[:k], a[k+1:]...)
t.value = a
case *MapItem:
m := t.value
k := toMapKey(key.value)
delete(m, k)
default:
panic("REMOVE: invalid type")
}

17
pkg/vm/vm_test.go
View file

@ -1696,6 +1696,23 @@ func TestREMOVEGood(t *testing.T) {
assert.Equal(t, makeStackItem(1), vm.estack.Pop().value)
}
func TestREMOVEMap(t *testing.T) {
prog := makeProgram(REMOVE, PUSH5, HASKEY)
vm := load(prog)
m := NewMapItem()
m.Add(makeStackItem(5), makeStackItem(3))
m.Add(makeStackItem([]byte{0, 1}), makeStackItem([]byte{2, 3}))
vm.estack.Push(&Element{value: m})
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(false), vm.estack.Pop().value)
}
func TestCHECKSIGNoArgs(t *testing.T) {
prog := makeProgram(CHECKSIG)
vm := load(prog)