00001 #ifndef GUARD_EXPRESSION_H 00002 #define GUARD_EXPRESSION_H 00003 00004 #include "guard.h" 00005 #include "expression.h" 00006 00007 class GuardExpression : public Guard { 00008 private: 00009 Expression *expression; 00010 00011 public: 00012 GuardExpression(SrcPosition *position, Expression *expression) 00013 : Guard(position), expression(expression) {} 00014 00015 GuardExpression(const GuardExpression& guardExpression) : Guard(guardExpression.position) { 00016 *(this) = guardExpression; 00017 } 00018 00019 virtual ~GuardExpression() { 00020 delete this->expression; 00021 } 00022 00023 Expression *getExpression() { 00024 return this->expression; 00025 } 00026 00027 virtual Ast& operator = (const Ast& ast); 00028 virtual bool operator == (const Ast& ast) const; 00029 00030 virtual VisitorReturn *visit(Visitor& visitor) { 00031 return visitor.visitGuardExpression(this); 00032 } 00033 00034 virtual Ast& clone() const { 00035 return *(new GuardExpression(new SrcPosition(*(this->position)), 00036 this->expression ? dynamic_cast<Expression*>(&(this->expression->clone())) : 0)); 00037 } 00038 }; 00039 00040 #endif