private void AddGetStackVariable(string name, int startIndex, bool interruptable)
{
if (_action.GetVariableOrDefault(name) is VariableInfo actionVariable)
{
_instructions.Add(InstructionProvider <GroupState> .GetInstruction(InstructionCode.SPR, new object[] { _action.ActionStackLocation - actionVariable.StackLocation - 1 }, sourcePosition: startIndex, interruptable: interruptable));
}
else
{
throw new LanguageConstraintException($"Variable '{name}' is not declared.", startIndex);
}
}