Variable.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "AstScript/Expr.hpp"
#include "AstUtil/StringView.hpp"
#include "AstUtil/SharedPtr.hpp"
#include <string>
 
AST_NAMESPACE_BEGIN
 
class AST_SCRIPT_API Variable: public Expr
{
public:
    AST_EXPR(Variable)
    
    Variable(StringView name, Expr* expr=nullptr, bool bind = false);
    Variable(Expr* expr=nullptr, bool bind = false);
 
    Value* eval() const final;
 
    errc_t setValue(Value* val) final;
 
    errc_t setExpr(Expr* expr);
 
    errc_t bind(Expr* expr);
 
    
    std::string getExpression(Object* context=nullptr) const override{return name_;}
public:
    const std::string& name() const { return name_; }
    Expr* expr() const { return expr_.get(); }
    
protected:
    std::string name_;            
    SharedPtr<Expr> expr_;        
    bool bind_;                   
};
 
 
AST_NAMESPACE_END