libyasm/valparam.h

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#ifndef YASM_VALPARAM_H
#define YASM_VALPARAM_H

#ifndef YASM_LIB_DECL
#define YASM_LIB_DECL
#endif

struct yasm_valparam {
    /*@reldef@*/ STAILQ_ENTRY(yasm_valparam) link;  
    /*@owned@*/ /*@null@*/ char *val;           
    enum yasm_param_type {
        YASM_PARAM_ID,                          
        YASM_PARAM_STRING,                      
        YASM_PARAM_EXPR                         
    } type;                                     
    union yasm_param {
        /*@owned@*/ char *id;                   
        /*@owned@*/ char *str;                  
        /*@owned@*/ yasm_expr *e;               
    } param;                                    
    char id_prefix;
};

/*@reldef@*/ STAILQ_HEAD(yasm_valparamhead, yasm_valparam);

struct yasm_directive {
    /*@null@*/ const char *name;

    const char *parser;                     
    void (*handler) (yasm_object *object, yasm_valparamhead *valparams,
                     yasm_valparamhead *objext_valparams, unsigned long line);

    enum yasm_directive_flags {
        YASM_DIR_ANY = 0,           
        YASM_DIR_ARG_REQUIRED = 1,  
        YASM_DIR_ID_REQUIRED = 2    
    } flags;
};

YASM_LIB_DECL
void yasm_call_directive(const yasm_directive *directive, yasm_object *object,
                         yasm_valparamhead *valparams,
                         yasm_valparamhead *objext_valparams,
                         unsigned long line);

YASM_LIB_DECL
yasm_valparam *yasm_vp_create_id(/*@keep@*/ char *v, /*@keep@*/ char *p,
                                 int id_prefix);

YASM_LIB_DECL
yasm_valparam *yasm_vp_create_string(/*@keep@*/ char *v, /*@keep@*/ char *p);

YASM_LIB_DECL
yasm_valparam *yasm_vp_create_expr(/*@keep@*/ char *v,
                                   /*@keep@*/ yasm_expr *p);

YASM_LIB_DECL
/*@null@*/ /*@only@*/ yasm_expr *yasm_vp_expr
    (const yasm_valparam *vp, yasm_symtab *symtab, unsigned long line);

YASM_LIB_DECL
/*@null@*/ /*@dependent@*/ const char *yasm_vp_string(const yasm_valparam *vp);

YASM_LIB_DECL
/*@null@*/ /*@dependent@*/ const char *yasm_vp_id(const yasm_valparam *vp);

YASM_LIB_DECL
yasm_valparamhead *yasm_vps_create(void);

YASM_LIB_DECL
void yasm_vps_destroy(yasm_valparamhead *headp);

void yasm_vps_initialize(/*@out@*/ yasm_valparamhead *headp);
#ifndef YASM_DOXYGEN
#define yasm_vps_initialize(headp)      STAILQ_INIT(headp)
#endif

YASM_LIB_DECL
void yasm_vps_delete(yasm_valparamhead *headp);

void yasm_vps_append(yasm_valparamhead *headp, /*@keep@*/ yasm_valparam *vp);
#ifndef YASM_DOXYGEN
#define yasm_vps_append(headp, vp)      do {        \
        if (vp)                                     \
            STAILQ_INSERT_TAIL(headp, vp, link);    \
    } while(0)
#endif

/*@null@*/ /*@dependent@*/ yasm_valparam *yasm_vps_first
    (yasm_valparamhead *headp);
#ifndef YASM_DOXYGEN
#define yasm_vps_first(headp)       STAILQ_FIRST(headp)
#endif

/*@null@*/ /*@dependent@*/ yasm_valparam *yasm_vps_next(yasm_valparam *cur);
#ifndef YASM_DOXYGEN
#define yasm_vps_next(cur)          STAILQ_NEXT(cur, link)
#endif

#ifndef YASM_DOXYGEN
#define yasm_vps_foreach(iter, headp)   STAILQ_FOREACH(iter, headp, link)
#endif

YASM_LIB_DECL
void yasm_vps_print(/*@null@*/ const yasm_valparamhead *headp, FILE *f);

typedef struct yasm_dir_help {
    const char *name;

    int needsparam;

    int (*helper) (void *obj, yasm_valparam *vp, unsigned long line,
                   void *data, uintptr_t arg);

    size_t off;

    uintptr_t arg;
} yasm_dir_help;

YASM_LIB_DECL
int yasm_dir_helper(void *obj, yasm_valparam *vp_first, unsigned long line,
                    const yasm_dir_help *help, size_t nhelp, void *data,
                    int (*helper_valparam) (void *object,
                                            yasm_valparam *vp,
                                            unsigned long line,
                                            void *data));

YASM_LIB_DECL
int yasm_dir_helper_flag_set(void *obj, yasm_valparam *vp, unsigned long line,
                             void *data, uintptr_t arg);

YASM_LIB_DECL
int yasm_dir_helper_flag_or(void *obj, yasm_valparam *vp, unsigned long line,
                            void *data, uintptr_t arg);

YASM_LIB_DECL
int yasm_dir_helper_flag_and(void *obj, yasm_valparam *vp, unsigned long line,
                             void *data, uintptr_t arg);

YASM_LIB_DECL
int yasm_dir_helper_expr(void *obj, yasm_valparam *vp, unsigned long line,
                         void *data, uintptr_t arg);

YASM_LIB_DECL
int yasm_dir_helper_intn(void *obj, yasm_valparam *vp, unsigned long line,
                         void *data, uintptr_t arg);

YASM_LIB_DECL
int yasm_dir_helper_string(void *obj, yasm_valparam *vp, unsigned long line,
                           void *data, uintptr_t arg);

YASM_LIB_DECL
int yasm_dir_helper_valparam_warn(void *obj, yasm_valparam *vp,
                                  unsigned long line, void *data);
#endif