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method.h
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/**********************************************************************
method.h -
$Author$
created at: Wed Jul 15 20:02:33 2009
Copyright (C) 2009 Koichi Sasada
**********************************************************************/
#ifndef METHOD_H
#define METHOD_H
#include "internal.h"
#ifndef END_OF_ENUMERATION
# if defined(__GNUC__) &&! defined(__STRICT_ANSI__)
# define END_OF_ENUMERATION(key)
# else
# define END_OF_ENUMERATION(key) END_OF_##key##_PLACEHOLDER = 0
# endif
#endif
/* cref */
typedef enum {
METHOD_VISI_UNDEF = 0x00,
METHOD_VISI_PUBLIC = 0x01,
METHOD_VISI_PRIVATE = 0x02,
METHOD_VISI_PROTECTED = 0x03
} rb_method_visibility_t;
typedef struct rb_scope_visi_struct {
rb_method_visibility_t method_visi : 3;
unsigned int module_func : 1;
} rb_scope_visibility_t;
typedef struct rb_cref_struct {
VALUE flags;
const VALUE refinements;
const VALUE klass;
struct rb_cref_struct * const next;
rb_scope_visibility_t scope_visi;
} rb_cref_t;
/* method data type */
typedef struct rb_method_entry_struct {
VALUE flags;
VALUE dummy;
struct rb_method_definition_struct * const def;
ID called_id;
const VALUE klass; /* should be marked */
} rb_method_entry_t;
#define METHOD_ENTRY_VISI(me) (rb_method_visibility_t)(((me)->flags & (IMEMO_FL_USER0 | IMEMO_FL_USER1)) >> (IMEMO_FL_USHIFT+0))
#define METHOD_ENTRY_BASIC(me) (int) (((me)->flags & (IMEMO_FL_USER2 )) >> (IMEMO_FL_USHIFT+2))
#define METHOD_ENTRY_SAFE(me) (int) (((me)->flags & (IMEMO_FL_USER3 | IMEMO_FL_USER4)) >> (IMEMO_FL_USHIFT+3))
static inline void
METHOD_ENTRY_VISI_SET(rb_method_entry_t *me, rb_method_visibility_t visi)
{
VM_ASSERT(visi <= 3);
me->flags = (me->flags & ~(IMEMO_FL_USER0 | IMEMO_FL_USER1)) | (visi << IMEMO_FL_USHIFT+0);
}
static inline void
METHOD_ENTRY_BASIC_SET(rb_method_entry_t *me, int basic)
{
VM_ASSERT(basic <= 1);
me->flags = (me->flags & ~(IMEMO_FL_USER2 )) | (basic << IMEMO_FL_USHIFT+2);
}
static inline void
METHOD_ENTRY_SAFE_SET(rb_method_entry_t *me, int safe)
{
VM_ASSERT(safe <= 3);
me->flags = (me->flags & ~(IMEMO_FL_USER3 | IMEMO_FL_USER4)) | (safe << IMEMO_FL_USHIFT+3);
}
static inline void
METHOD_ENTRY_FLAGS_SET(rb_method_entry_t *me, rb_method_visibility_t visi, int basic, int safe)
{
VM_ASSERT(visi <= 3);
VM_ASSERT(basic <= 1);
VM_ASSERT(safe <= 3);
me->flags =
(me->flags & ~(IMEMO_FL_USER0|IMEMO_FL_USER1|IMEMO_FL_USER2|IMEMO_FL_USER3|IMEMO_FL_USER4)) |
((visi << IMEMO_FL_USHIFT+0) | (basic << (IMEMO_FL_USHIFT+2)) | (safe << IMEMO_FL_USHIFT+3));
}
typedef enum {
VM_METHOD_TYPE_ISEQ,
VM_METHOD_TYPE_CFUNC,
VM_METHOD_TYPE_ATTRSET,
VM_METHOD_TYPE_IVAR,
VM_METHOD_TYPE_BMETHOD,
VM_METHOD_TYPE_ZSUPER,
VM_METHOD_TYPE_ALIAS,
VM_METHOD_TYPE_UNDEF,
VM_METHOD_TYPE_NOTIMPLEMENTED,
VM_METHOD_TYPE_OPTIMIZED, /* Kernel#send, Proc#call, etc */
VM_METHOD_TYPE_MISSING, /* wrapper for method_missing(id) */
VM_METHOD_TYPE_REFINED,
END_OF_ENUMERATION(VM_METHOD_TYPE)
} rb_method_type_t;
typedef struct rb_iseq_struct rb_iseq_t;
typedef struct rb_method_iseq_struct {
rb_iseq_t * const iseqptr; /* should be separated from iseqval */
rb_cref_t * const cref; /* shoudl be marked */
} rb_method_iseq_t; /* check rb_add_method_iseq() when modify the fields */
typedef struct rb_method_cfunc_struct {
VALUE (*func)(ANYARGS);
VALUE (*invoker)(VALUE (*func)(ANYARGS), VALUE recv, int argc, const VALUE *argv);
int argc;
} rb_method_cfunc_t;
typedef struct rb_method_attr_struct {
ID id;
const VALUE location; /* sould be marked */
} rb_method_attr_t;
typedef struct rb_method_alias_struct {
const struct rb_method_entry_struct * const original_me; /* original_me->klass is original owner */
} rb_method_alias_t;
typedef struct rb_method_refined_struct {
const struct rb_method_entry_struct * const orig_me;
} rb_method_refined_t;
typedef struct rb_method_definition_struct {
rb_method_type_t type; /* method type */
int alias_count;
union {
rb_method_iseq_t iseq;
rb_method_cfunc_t cfunc;
rb_method_attr_t attr;
rb_method_alias_t alias;
rb_method_refined_t refined;
const VALUE proc; /* should be marked */
enum method_optimized_type {
OPTIMIZED_METHOD_TYPE_SEND,
OPTIMIZED_METHOD_TYPE_CALL,
OPTIMIZED_METHOD_TYPE__MAX
} optimize_type;
} body;
ID original_id;
} rb_method_definition_t;
#define UNDEFINED_METHOD_ENTRY_P(me) (!(me) || !(me)->def || (me)->def->type == VM_METHOD_TYPE_UNDEF)
#define UNDEFINED_REFINED_METHOD_P(def) \
((def)->type == VM_METHOD_TYPE_REFINED && \
UNDEFINED_METHOD_ENTRY_P((def)->body.refined.orig_me))
void rb_add_method_cfunc(VALUE klass, ID mid, VALUE (*func)(ANYARGS), int argc, rb_method_visibility_t visi);
void rb_add_method_iseq(VALUE klass, ID mid, VALUE iseqval, rb_cref_t *cref, rb_method_visibility_t visi);
rb_method_entry_t *rb_add_method(VALUE klass, ID mid, rb_method_type_t type, void *option, rb_method_visibility_t visi);
rb_method_entry_t *rb_method_entry(VALUE klass, ID id, VALUE *define_class_ptr);
rb_method_entry_t *rb_method_entry_at(VALUE obj, ID id);
void rb_add_refined_method_entry(VALUE refined_class, ID mid);
const rb_method_entry_t *rb_resolve_refined_method(VALUE refinements,
const rb_method_entry_t *me,
VALUE *defined_class_ptr);
const rb_method_entry_t *rb_method_entry_with_refinements(VALUE klass, ID id,
VALUE *defined_class_ptr);
const rb_method_entry_t *rb_method_entry_without_refinements(VALUE klass, ID id,
VALUE *defined_class_ptr);
rb_method_entry_t *rb_method_entry_get_without_cache(VALUE klass, ID id, VALUE *define_class_ptr);
rb_method_entry_t *rb_method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *, rb_method_visibility_t noex);
int rb_method_entry_arity(const rb_method_entry_t *me);
int rb_method_entry_eq(const rb_method_entry_t *m1, const rb_method_entry_t *m2);
st_index_t rb_hash_method_entry(st_index_t hash, const rb_method_entry_t *me);
VALUE rb_method_entry_location(const rb_method_entry_t *me);
VALUE rb_mod_method_location(VALUE mod, ID id);
VALUE rb_obj_method_location(VALUE obj, ID id);
void rb_free_method_entry(const rb_method_entry_t *me);
void rb_sweep_method_entry(void *vm);
rb_method_entry_t *rb_method_entry_create(ID called_id, VALUE klass, rb_method_visibility_t visi, rb_method_definition_t *def);
rb_method_entry_t *rb_method_entry_clone(const rb_method_entry_t *me);
void rb_method_entry_copy(rb_method_entry_t *dst, const rb_method_entry_t *src);
void rb_scope_visibility_set(rb_method_visibility_t);
#endif /* METHOD_H */