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method.h

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00001 /**********************************************************************
00002 
00003   method.h -
00004 
00005   $Author: ko1 $
00006   created at: Wed Jul 15 20:02:33 2009
00007 
00008   Copyright (C) 2009 Koichi Sasada
00009 
00010 **********************************************************************/
00011 #ifndef METHOD_H
00012 #define METHOD_H
00013 
00014 typedef enum {
00015     NOEX_PUBLIC    = 0x00,
00016     NOEX_NOSUPER   = 0x01,
00017     NOEX_PRIVATE   = 0x02,
00018     NOEX_PROTECTED = 0x04,
00019     NOEX_MASK      = 0x06,
00020     NOEX_BASIC     = 0x08,
00021     NOEX_UNDEF     = NOEX_NOSUPER,
00022     NOEX_MODFUNC   = 0x12,
00023     NOEX_SUPER     = 0x20,
00024     NOEX_VCALL     = 0x40,
00025     NOEX_RESPONDS  = 0x80
00026 } rb_method_flag_t;
00027 
00028 #define NOEX_SAFE(n) ((int)((n) >> 8) & 0x0F)
00029 #define NOEX_WITH(n, s) ((s << 8) | (n) | (ruby_running ? 0 : NOEX_BASIC))
00030 #define NOEX_WITH_SAFE(n) NOEX_WITH(n, rb_safe_level())
00031 
00032 /* method data type */
00033 
00034 typedef enum {
00035     VM_METHOD_TYPE_ISEQ,
00036     VM_METHOD_TYPE_CFUNC,
00037     VM_METHOD_TYPE_ATTRSET,
00038     VM_METHOD_TYPE_IVAR,
00039     VM_METHOD_TYPE_BMETHOD,
00040     VM_METHOD_TYPE_ZSUPER,
00041     VM_METHOD_TYPE_UNDEF,
00042     VM_METHOD_TYPE_NOTIMPLEMENTED,
00043     VM_METHOD_TYPE_OPTIMIZED, /* Kernel#send, Proc#call, etc */
00044     VM_METHOD_TYPE_MISSING   /* wrapper for method_missing(id) */
00045 } rb_method_type_t;
00046 
00047 typedef struct rb_method_cfunc_struct {
00048     VALUE (*func)(ANYARGS);
00049     int argc;
00050 } rb_method_cfunc_t;
00051 
00052 typedef struct rb_method_attr_struct {
00053     ID id;
00054     VALUE location;
00055 } rb_method_attr_t;
00056 
00057 typedef struct rb_iseq_struct rb_iseq_t;
00058 
00059 typedef struct rb_method_definition_struct {
00060     rb_method_type_t type; /* method type */
00061     ID original_id;
00062     union {
00063         rb_iseq_t *iseq;            /* should be mark */
00064         rb_method_cfunc_t cfunc;
00065         rb_method_attr_t attr;
00066         VALUE proc;                 /* should be mark */
00067         enum method_optimized_type {
00068             OPTIMIZED_METHOD_TYPE_SEND,
00069             OPTIMIZED_METHOD_TYPE_CALL
00070         } optimize_type;
00071     } body;
00072     int alias_count;
00073 } rb_method_definition_t;
00074 
00075 typedef struct rb_method_entry_struct {
00076     rb_method_flag_t flag;
00077     char mark;
00078     rb_method_definition_t *def;
00079     ID called_id;
00080     VALUE klass;                    /* should be mark */
00081 } rb_method_entry_t;
00082 
00083 struct unlinked_method_entry_list_entry {
00084     struct unlinked_method_entry_list_entry *next;
00085     rb_method_entry_t *me;
00086 };
00087 
00088 #define UNDEFINED_METHOD_ENTRY_P(me) (!(me) || !(me)->def || (me)->def->type == VM_METHOD_TYPE_UNDEF)
00089 
00090 void rb_add_method_cfunc(VALUE klass, ID mid, VALUE (*func)(ANYARGS), int argc, rb_method_flag_t noex);
00091 rb_method_entry_t *rb_add_method(VALUE klass, ID mid, rb_method_type_t type, void *option, rb_method_flag_t noex);
00092 rb_method_entry_t *rb_method_entry(VALUE klass, ID id);
00093 
00094 rb_method_entry_t *rb_method_entry_get_without_cache(VALUE klass, ID id);
00095 rb_method_entry_t *rb_method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *, rb_method_flag_t noex);
00096 
00097 int rb_method_entry_arity(const rb_method_entry_t *me);
00098 
00099 void rb_mark_method_entry(const rb_method_entry_t *me);
00100 void rb_free_method_entry(rb_method_entry_t *me);
00101 void rb_sweep_method_entry(void *vm);
00102 
00103 #endif /* METHOD_H */
00104 

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