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#ifndef _SYSYF_VALUE_H_
#define _SYSYF_VALUE_H_
#include <string>
#include <list>
#include <iostream>
#include <memory>
#include "internal_types.h"
namespace SysYF
{
namespace IR
{
class Type;
class Value;
struct Use
{
Ptr<Value> val_;
unsigned arg_no_; // the no. of operand, e.g., func(a, b), a is 0, b is 1
Use(Ptr<Value> val, unsigned no) : val_(val), arg_no_(no) {}
};
class Value : public std::enable_shared_from_this<Value>
{
public:
~Value() = default;
Ptr<Type> get_type() const { return type_; }
std::list<Use> &get_use_list() { return use_list_; }
void add_use(Ptr<Value> val, unsigned arg_no = 0);
bool set_name(std::string name) {
if (name_ == "")
{
name_=name;
return true;
}
return false;
}
std::string get_name() const;
void replace_all_use_with(Ptr<Value> new_val);
void remove_use(Ptr<Value> val);
virtual std::string print() = 0;
protected:
explicit Value(Ptr<Type> ty, const std::string &name = "");
private:
Ptr<Type> type_;
std::list<Use> use_list_; // who use this value
std::string name_; // should we put name field here ?
};
}
}
#endif // _SYSYF_VALUE_H_