/// <summary>
/// Получает числовое значение данного токена, если он является примитивным или значение уже подсчитано
/// </summary>
private Constant Parse(RuntimeDataPackage package)
{
if (_valueSet)
{
return(Value);
}
if (_referenceSet && Reference.Type == ReferenceType.Define)
{
return(new Constant(PreprocessorDirective.defines.Exists(p => p.Name == RawValue)));
}
if (_referenceSet && package != null)
{
if (Reference.Type == ReferenceType.Variable)
{
var variable = package.GetVariable(Reference.Index);
if (variable.Value.Type.Type != Runtime.Structures.TypeReferenceType.Integer)
{
throw new Exception("Wrong object type!");
}
return(new Constant(variable.Value.IntegerValue));
}
else
{
switch (Reference.Object.Type)
{
case FlashElementType.Constant:
return((Reference.Object as FlashElementConstant).ToConstant());
case FlashElementType.Variable:
case FlashElementType.Instruction:
case FlashElementType.Expression:
case FlashElementType.Undefined:
default:
throw new Exception("Wrong reference object!");
}
}
}
else
{
Constant constant;
var error = Constant.Parse(RawValue, out constant);
if (error != null)
{
if (error.Type == ParseErrorType.Syntax_Constant_TooLong || error.Type == ParseErrorType.Syntax_Constant_BaseOverflow)
{
throw new Exception("Wrong const format");
}
throw new WrongTokenException();
}
else
{
return(constant);
}
}
}
protected Variable GetVar(Integer index, RuntimeDataPackage package)
{
return(package.GetVariable(index));
}