Expr.hpp

浏览该文件的文档.

 
 
#pragma once
 
#include "AstGlobal.h"
#include "AstUtil/Object.hpp"
#include "AstScript/ScriptAPI.hpp"
 
AST_NAMESPACE_BEGIN
 
class Value;   
 
class AST_SCRIPT_API Expr: public Object
{
public:
    using Object::Object;
    ~Expr() override = default;
 
    virtual void accept(ExprVisitor& visitor) = 0;
 
    virtual Value* eval() const = 0;
 
    virtual Expr* exec() const {return const_cast<Expr*>(this);};
    
    virtual errc_t setValue(Value* val) {return eErrorReadonly;};
 
    virtual std::string getExpression(Object* context=nullptr) const = 0;
};
 
 
AST_NAMESPACE_END