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package vm
import "jinx/pkg/lang/vm/value"
func (vm *VM) execPushInt(x int64) {
vm.stack.Top().Push(value.NewInt(x))
}
func (vm *VM) execPushFloat(x float64) {
vm.stack.Top().Push(value.NewFloat(x))
}
func (vm *VM) execPushString(str string) {
vm.stack.Top().Push(value.NewString(str))
}
func (vm *VM) execPushBool(b bool) {
vm.stack.Top().Push(value.NewBool(b))
}
func (vm *VM) execPushNull() {
vm.stack.Top().Push(value.NewNull())
}
func (vm *VM) execPushArray() {
vm.stack.Top().Push(value.NewArray([]value.Value{}))
}
func (vm *VM) execGetLocal(offset int) {
top := vm.stack.Top()
top.Push(top.At(int(offset)))
}
func (vm *VM) execGetArg() {
vm.stack.Top().Push(vm.stack.Prev().Pop())
}
func (vm *VM) execAdd() {
top := vm.stack.Top()
x := top.Pop()
y := top.Pop()
var res value.Value
switch x.Type().Kind {
case value.IntType:
xv := int64(x.Data().(value.IntData))
switch y.Type().Kind {
case value.IntType:
yv := int64(y.Data().(value.IntData))
res = value.NewInt(xv + yv)
case value.FloatType:
yv := float64(y.Data().(value.FloatData))
res = value.NewFloat(float64(xv) + yv)
default:
panic("invalid operand types")
}
case value.FloatType:
xv := float64(x.Data().(value.FloatData))
switch y.Type().Kind {
case value.IntType:
yv := float64(y.Data().(value.IntData))
res = value.NewFloat(xv + yv)
case value.FloatType:
yv := float64(y.Data().(value.FloatData))
res = value.NewFloat(xv + yv)
default:
panic("invalid operand types")
}
case value.StringType:
switch y.Type().Kind {
case value.StringType:
res = value.NewString(string(x.Data().(value.StringData)) + string(y.Data().(value.StringData)))
default:
panic("invalid operand types")
}
default:
panic("invalid operand types")
}
top.Push(res)
}
func (vm *VM) execSub() {
top := vm.stack.Top()
x := top.Pop()
y := top.Pop()
var res value.Value
switch x.Type().Kind {
case value.IntType:
xv := int64(x.Data().(value.IntData))
switch y.Type().Kind {
case value.IntType:
yv := int64(y.Data().(value.IntData))
res = value.NewInt(xv - yv)
case value.FloatType:
yv := float64(y.Data().(value.FloatData))
res = value.NewFloat(float64(xv) - yv)
default:
panic("invalid operand types")
}
case value.FloatType:
xv := float64(x.Data().(value.FloatData))
switch y.Type().Kind {
case value.IntType:
yv := float64(y.Data().(value.IntData))
res = value.NewFloat(xv - yv)
case value.FloatType:
yv := float64(y.Data().(value.FloatData))
res = value.NewFloat(xv - yv)
default:
panic("invalid operand types")
}
default:
panic("invalid operand types")
}
top.Push(res)
}
func (vm *VM) execIndex() {
top := vm.stack.Top()
v := top.Pop()
i := top.Pop()
switch v.Type().Kind {
case value.ArrayType:
arr := v.Data().([]value.Value)
idx := i.Data().(int64)
if idx < 0 || idx >= int64(len(arr)) {
panic("index out of bounds")
}
top.Push(arr[idx])
default:
panic("invalid operand types")
}
}
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