PorygonLang/src/Evaluator/EvalValues/EvalValue.hpp

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#ifndef PORYGONLANG_EVALVALUE_HPP
#define PORYGONLANG_EVALVALUE_HPP
#include "../../ScriptType.hpp"
#include "../EvaluationException.hpp"
#include <string>
#include <sstream>
class EvalValue{
public:
virtual ~EvalValue() = default;
virtual ScriptType* GetType() = 0;
virtual bool operator ==(EvalValue* b) = 0;
virtual bool operator !=(EvalValue*b){
return ! (this->operator==(b));
}
virtual long EvaluateInteger(){
throw EvaluationException("Can't evaluate this EvalValue as integer.");
}
virtual double EvaluateFloat(){
throw EvaluationException("Can't evaluate this EvalValue as float.");
}
virtual bool EvaluateBool(){
throw EvaluationException("Can't evaluate this EvalValue as bool.");
}
virtual std::string EvaluateString(){
throw EvaluationException("Can't evaluate this EvalValue as string.");
}
};
class BooleanEvalValue : public EvalValue{
bool _value;
ScriptType* _type;
public:
explicit BooleanEvalValue(bool val){
_value = val;
_type = new ScriptType(TypeClass::Bool);
}
~BooleanEvalValue() final{
delete _type;
}
ScriptType* GetType() final{
return _type;
};
bool EvaluateBool() final{
return _value;
}
bool operator ==(EvalValue* b) final{
if (b->GetType()->GetClass() != TypeClass::Bool)
return false;
return this->EvaluateBool() == b->EvaluateBool();
};
std::string EvaluateString() final{
std::ostringstream strs;
strs << _value;
return strs.str();
}
};
#endif //PORYGONLANG_EVALVALUE_HPP