env.h

/*Lab4: Your implementation of lab4*/

#ifndef ENV_H_
#define ENV_H_

#include "temp.h"
#include "translate.h"
#include "types.h"

typedef struct E_enventry_ *E_enventry;

struct E_enventry_ {
    enum { E_varEntry, E_funEntry } kind;
    int readonly;  // for loop var
    union {
        struct {
            Tr_access access;
            Ty_ty ty;
        } var;
        struct {
            Tr_level level;
            Temp_label label;
            Ty_tyList formals;
            Ty_ty result;
        } fun;
    } u;
};

E_enventry E_VarEntry(Tr_access access, Ty_ty ty);
E_enventry E_ROVarEntry(Tr_access access, Ty_ty ty);
E_enventry E_FunEntry(Tr_level level, Temp_label label, Ty_tyList formals,
                      Ty_ty result);

S_table E_base_tenv(void);
S_table E_base_venv(void);

#endif