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Add set index in list, and update lib+examples+tests

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This commit is contained in:
Neemek 2026-08-20 13:44:10 +02:00
parent 09ac16a42d
commit 3bccc227ba
Signed by: neemek
GPG key ID: 84FFE4D7D40AB25E
12 changed files with 117 additions and 60 deletions
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34
core/vm.go
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@ -152,10 +152,14 @@ const (
// is the index. [..., container, index] -> [..., item]
InstructionIndexTuple
// InstructionIndexString index into a string. The lower item is the container, and the top item
// is the index. [..., container, index] -> [..., item]. Produces a new string with the character
// at the position
// is the index. [..., container, index] -> [..., item]. Produces a new string with only the character
// at the indexed position
InstructionIndexString
// InstructionSetIndexList set the item at a given index in a list.
// [..., item, container, index] -> [..., item]
InstructionSetIndexList
// InstructionBreakpoint for debugging purposes
InstructionBreakpoint
)
@ -638,7 +642,7 @@ var DefaultGlobals = map[string]Value{
n, _ := v.Number.Float64()
return &FloatValue{n}, nil
case *FloatValue:
return v.Clone(), nil
return v.Copy(), nil
case *StringValue:
num, err := strconv.ParseFloat(v.Text, FloatSize)
if err != nil {
@ -978,7 +982,7 @@ func (vm *VM) Next() bool {
vm.Stack.Push(v)
case InstructionSetLocal:
value := vm.Stack.Peek().Clone()
value := vm.Stack.Peek().Copy()
name := vm.GetConstant(vm.NextByte()).(*StringValue).Text
vm.setVar(name, value)
@ -986,7 +990,7 @@ func (vm *VM) Next() bool {
case InstructionDeclareLocal:
vm.addVar(
vm.GetConstant(vm.NextByte()).(*StringValue).Text,
vm.Stack.Peek().Clone(),
vm.Stack.Peek().Copy(),
)
case InstructionGetGlobal:
@ -1070,7 +1074,7 @@ func (vm *VM) Next() bool {
vm.Stack.Push(r, l)
case InstructionDuplicate:
vm.Stack.Push(vm.Stack.Peek().Clone())
vm.Stack.Push(vm.Stack.Peek().Copy())
case InstructionAccessProperty:
source := vm.Stack.Pop()
@ -1112,7 +1116,7 @@ func (vm *VM) Next() bool {
vm.error(fmt.Sprintf("index %d out of bounds", n))
}
vm.Stack.Push(l.Items[n].Clone())
vm.Stack.Push(l.Items[n].Copy())
case InstructionIndexTuple:
i := vm.Stack.Pop().(*IntegerValue)
@ -1124,7 +1128,7 @@ func (vm *VM) Next() bool {
vm.error(fmt.Sprintf("index %d out of bounds", n))
}
vm.Stack.Push(t.Items[n].Clone())
vm.Stack.Push(t.Items[n].Copy())
case InstructionIndexString:
i := vm.Stack.Pop().(*IntegerValue)
@ -1138,6 +1142,18 @@ func (vm *VM) Next() bool {
vm.Stack.Push(&StringValue{string(s.Text[n])})
case InstructionSetIndexList:
n := vm.Stack.Pop().(*IntegerValue)
l := vm.Stack.Pop().(*ListValue)
i := n.Number.Int64()
if i < 0 || int64(len(l.Items)) <= i {
vm.error(fmt.Sprintf("index %d out of bounds", i))
}
l.Items[i] = vm.Stack.Peek().Copy()
case InstructionBreakpoint:
/*
// I'm keeping this
@ -1284,7 +1300,7 @@ func (vm *VM) HasNext() bool {
}
func (vm *VM) GetConstant(id Bytecode) Value {
return vm.chunk.Constants[id].Clone()
return vm.chunk.Constants[id].Copy()
}
func (vm *VM) ReadConstant() Value {