diff options
| -rw-r--r-- | pkg/lang/vm/vm.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/pkg/lang/vm/vm.go b/pkg/lang/vm/vm.go index 8422299..966ec9f 100644 --- a/pkg/lang/vm/vm.go +++ b/pkg/lang/vm/vm.go @@ -29,7 +29,11 @@ func New(code *code.Code) *VM { } func (vm *VM) GetResult() (string, error) { - res, err := vm.stack.Pop() + if vm.stack.Len() == 0 { + return "", stack.ErrStackUnderflow + } + + res, err := vm.stack.Get(vm.stack.Len() - 1) if err != nil { return "", err } |