[gitmo/Class-MOP.git] / MOP.xs

/* There's a lot of cases of doubled parens in here like this:

  while ( (he = ...) ) {

This shuts up warnings from gcc -Wall
*/

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#define NEED_sv_2pv_flags
#define NEED_sv_2pv_nolen
#include "ppport.h"

SV *key_name;
U32 hash_name;

SV *key_package;
U32 hash_package;

SV *key_package_name;
U32 hash_package_name;

SV *key_body;
U32 hash_body;

SV *key_package_cache_flag;
U32 hash_package_cache_flag;

SV *key_methods;
U32 hash_methods;

SV *method_metaclass;
SV *associated_metaclass;
SV *wrap;


#define check_package_cache_flag(stash) mop_check_package_cache_flag(aTHX_ stash)
#ifdef HvMROMETA /* 5.10.0 */

#ifndef mro_meta_init
#define mro_meta_init(stash) Perl_mro_meta_init(aTHX_ stash) /* used in HvMROMETA macro */
#endif /* !mro_meta_init */

static UV
mop_check_package_cache_flag(pTHX_ HV* stash) {
    assert(SvTYPE(stash) == SVt_PVHV);

    return HvMROMETA(stash)->pkg_gen; /* mro::get_pkg_gen($pkg) */
}

#else /* pre 5.10.0 */

static UV
mop_check_package_cache_flag(pTHX_ HV *stash) {
    PERL_UNUSED_ARG(stash);
    assert(SvTYPE(stash) == SVt_PVHV);

    return PL_sub_generation;
}
#endif

#define call0(s, m)  mop_call0(aTHX_ s, m)
static SV *
mop_call0(pTHX_ SV *const self, SV *const method) {
    dSP;
    SV *ret;

    PUSHMARK(SP);
    XPUSHs(self);
    PUTBACK;

    call_sv(method, G_SCALAR | G_METHOD);

    SPAGAIN;
    ret = POPs;
    PUTBACK;

    return ret;
}

static int
get_code_info (SV *coderef, char **pkg, char **name)
{
    if (!SvOK(coderef) || !SvROK(coderef) || SvTYPE(SvRV(coderef)) != SVt_PVCV) {
        return 0;
    }

    coderef = SvRV(coderef);
    /* I think this only gets triggered with a mangled coderef, but if
       we hit it without the guard, we segfault. The slightly odd return
       value strikes me as an improvement (mst)
    */
#ifdef isGV_with_GP
    if ( isGV_with_GP(CvGV(coderef)) ) {
#endif
        *pkg     = HvNAME( GvSTASH(CvGV(coderef)) );
        *name    = GvNAME( CvGV(coderef) );
#ifdef isGV_with_GP
    } else {
        *pkg     = "__UNKNOWN__";
        *name    = "__ANON__";
    }
#endif

    return 1;
}

typedef enum {
    TYPE_FILTER_NONE,
    TYPE_FILTER_CODE,
    TYPE_FILTER_ARRAY,
    TYPE_FILTER_IO,
    TYPE_FILTER_HASH,
    TYPE_FILTER_SCALAR,
} type_filter_t;

static HV *
get_all_package_symbols(HV *stash, type_filter_t filter)
{
    HE *he;
    HV *ret = newHV();

    (void)hv_iterinit(stash);

    if (filter == TYPE_FILTER_NONE) {
        while ( (he = hv_iternext(stash)) ) {
            STRLEN keylen;
            char *key = HePV(he, keylen);
            hv_store(ret, key, keylen, SvREFCNT_inc(HeVAL(he)), 0);
        }

        return ret;
    }

    while ( (he = hv_iternext(stash)) ) {
        SV *const gv = HeVAL(he);
        SV *sv = NULL;
        char *key;
        STRLEN keylen;
        char *package;
        SV *fq;

        switch( SvTYPE(gv) ) {
#ifndef SVt_RV
            case SVt_RV:
#endif
            case SVt_PV:
            case SVt_IV:
                /* expand the gv into a real typeglob if it
                 * contains stub functions and we were asked to
                 * return CODE symbols */
                if (filter == TYPE_FILTER_CODE) {
                    if (SvROK(gv)) {
                        /* we don't really care about the length,
                           but that's the API */
                        key = HePV(he, keylen);
                        package = HvNAME(stash);
                        fq = newSVpvf("%s::%s", package, key);
                        sv = (SV *)get_cv(SvPV_nolen(fq), 0);
                        break;
                    }

                    key = HePV(he, keylen);
                    gv_init((GV *)gv, stash, key, keylen, GV_ADDMULTI);
                }
                /* fall through */
            case SVt_PVGV:
                switch (filter) {
                    case TYPE_FILTER_CODE:   sv = (SV *)GvCVu(gv); break;
                    case TYPE_FILTER_ARRAY:  sv = (SV *)GvAV(gv);  break;
                    case TYPE_FILTER_IO:     sv = (SV *)GvIO(gv);  break;
                    case TYPE_FILTER_HASH:   sv = (SV *)GvHV(gv);  break;
                    case TYPE_FILTER_SCALAR: sv = (SV *)GvSV(gv);  break;
                    default:
                        croak("Unknown type");
                }
                break;
            default:
                continue;
        }

        if (sv) {
            char *key = HePV(he, keylen);
            hv_store(ret, key, keylen, newRV_inc(sv), 0);
        }
    }

    return ret;
}


static void
mop_update_method_map(pTHX_ SV *const self, SV *const class_name, HV *const stash, HV *const map) {
    const char *const class_name_pv = HvNAME(stash); /* must be HvNAME(stash), not SvPV_nolen_const(class_name) */
    SV   *method_metaclass_name;
    char *method_name;
    I32   method_name_len;
    SV   *coderef;
    HV   *symbols;
    dSP;

    symbols = get_all_package_symbols(stash, TYPE_FILTER_CODE);

    (void)hv_iterinit(symbols);
    while ( (coderef = hv_iternextsv(symbols, &method_name, &method_name_len)) ) {
        CV *cv = (CV *)SvRV(coderef);
        char *cvpkg_name;
        char *cv_name;
        SV *method_slot;
        SV *method_object;

        if (!get_code_info(coderef, &cvpkg_name, &cv_name)) {
            continue;
        }

        /* this checks to see that the subroutine is actually from our package  */
        if ( !(strEQ(cvpkg_name, "constant") && strEQ(cv_name, "__ANON__")) ) {
            if ( strNE(cvpkg_name, class_name_pv) ) {
                continue;
            }
        }

        method_slot = *hv_fetch(map, method_name, method_name_len, TRUE);
        if ( SvOK(method_slot) ) {
            SV* const body = call0(method_slot, key_body); /* $method_object->body() */
            if ( SvROK(body) && ((CV *) SvRV(body)) == cv ) {
                continue;
            }
        }

        method_metaclass_name = call0(self, method_metaclass); /* $self->method_metaclass() */

        /*
            $method_object = $method_metaclass->wrap(
                $cv,
                associated_metaclass => $self,
                package_name         => $class_name,
                name                 => $method_name
            );
        */
        ENTER;
        SAVETMPS;

        PUSHMARK(SP);
        EXTEND(SP, 8);
        PUSHs(method_metaclass_name); /* invocant */
        mPUSHs(newRV_inc((SV *)cv));
        PUSHs(associated_metaclass);
        PUSHs(self);
        PUSHs(key_package_name);
        PUSHs(class_name);
        PUSHs(key_name);
        mPUSHs(newSVpv(method_name, method_name_len));
        PUTBACK;

        call_sv(wrap, G_SCALAR | G_METHOD);
        SPAGAIN;
        method_object = POPs;
        PUTBACK;
        /* $map->{$method_name} = $method_object */
        sv_setsv(method_slot, method_object);

        FREETMPS;
        LEAVE;
    }
}

/*
get_code_info:
  Pass in a coderef, returns:
  [ $pkg_name, $coderef_name ] ie:
  [ 'Foo::Bar', 'new' ]
*/

MODULE = Class::MOP   PACKAGE = Class::MOP

BOOT:
    key_name = newSVpvs("name");
    key_body = newSVpvs("body");
    key_package = newSVpvs("package");
    key_package_name = newSVpvs("package_name");
    key_package_cache_flag = newSVpvs("_package_cache_flag");
    key_methods = newSVpvs("methods");

    PERL_HASH(hash_name, "name", 4);
    PERL_HASH(hash_body, "body", 4);
    PERL_HASH(hash_package, "package", 7);
    PERL_HASH(hash_package_name, "package_name", 12);
    PERL_HASH(hash_package_cache_flag, "_package_cache_flag", 19);
    PERL_HASH(hash_methods, "methods", 7);

    method_metaclass     = newSVpvs("method_metaclass");
    wrap                 = newSVpvs("wrap");
    associated_metaclass = newSVpvs("associated_metaclass");


PROTOTYPES: ENABLE


void
get_code_info(coderef)
    SV *coderef
    PREINIT:
        char* pkg  = NULL;
        char* name = NULL;
    PPCODE:
        if (get_code_info(coderef, &pkg, &name)) {
            EXTEND(SP, 2);
            PUSHs(newSVpv(pkg, 0));
            PUSHs(newSVpv(name, 0));
        }


MODULE = Class::MOP   PACKAGE = Class::MOP::Package

void
get_all_package_symbols(self, filter=TYPE_FILTER_NONE)
    SV *self
    type_filter_t filter
    PROTOTYPE: $;$
    PREINIT:
        HV *stash = NULL;
        HV *symbols = NULL;
        register HE *he;
    PPCODE:
        if ( ! SvROK(self) ) {
            die("Cannot call get_all_package_symbols as a class method");
        }

        if (GIMME_V == G_VOID) {
            XSRETURN_EMPTY;
        }


        PUTBACK;

        if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package, 0, hash_package)) ) {
            stash = gv_stashsv(HeVAL(he), 0);
        }


        if (!stash) {
            switch (GIMME_V) {
                case G_SCALAR: XSRETURN_UNDEF; break;
                case G_ARRAY:  XSRETURN_EMPTY; break;
            }
        }

        symbols = get_all_package_symbols(stash, filter);

        switch (GIMME_V) {
            case G_SCALAR:
                PUSHs(sv_2mortal(newRV_inc((SV *)symbols)));
                break;
            case G_ARRAY:
                warn("Class::MOP::Package::get_all_package_symbols in list context is deprecated. use scalar context instead.");

                EXTEND(SP, HvKEYS(symbols) * 2);

                while ((he = hv_iternext(symbols))) {
                    PUSHs(hv_iterkeysv(he));
                    PUSHs(sv_2mortal(SvREFCNT_inc(HeVAL(he))));
                }

                break;
            default:
                break;
        }

        SvREFCNT_dec((SV *)symbols);

void
name(self)
    SV *self
    PREINIT:
        register HE *he;
    PPCODE:
        if ( ! SvROK(self) ) {
            die("Cannot call name as a class method");
        }

        if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package, 0, hash_package)) )
            XPUSHs(HeVAL(he));
        else
            ST(0) = &PL_sv_undef;

MODULE = Class::MOP   PACKAGE = Class::MOP::Attribute

void
name(self)
    SV *self
    PREINIT:
        register HE *he;
    PPCODE:
        if ( ! SvROK(self) ) {
            die("Cannot call name as a class method");
        }

        if ( (he = hv_fetch_ent((HV *)SvRV(self), key_name, 0, hash_name)) )
            XPUSHs(HeVAL(he));
        else
            ST(0) = &PL_sv_undef;

MODULE = Class::MOP   PACKAGE = Class::MOP::Method

void
name(self)
    SV *self
    PREINIT:
        register HE *he;
    PPCODE:
        if ( ! SvROK(self) ) {
            die("Cannot call name as a class method");
        }

        if ( (he = hv_fetch_ent((HV *)SvRV(self), key_name, 0, hash_name)) )
            XPUSHs(HeVAL(he));
        else
            ST(0) = &PL_sv_undef;

void
package_name(self)
    SV *self
    PREINIT:
        register HE *he;
    PPCODE:
        if ( ! SvROK(self) ) {
            die("Cannot call package_name as a class method");
        }

        if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package_name, 0, hash_package_name)) )
            XPUSHs(HeVAL(he));
        else
            ST(0) = &PL_sv_undef;

void
body(self)
    SV *self
    PREINIT:
        register HE *he;
    PPCODE:
        if ( ! SvROK(self) ) {
            die("Cannot call body as a class method");
        }

        if ( (he = hv_fetch_ent((HV *)SvRV(self), key_body, 0, hash_body)) )
            XPUSHs(HeVAL(he));
        else
            ST(0) = &PL_sv_undef;


MODULE = Class::MOP    PACKAGE = Class::MOP::Class

void
get_method_map(self)
    SV *self
    PREINIT:
        HV *const obj        = (HV *)SvRV(self);
        SV *const class_name = HeVAL( hv_fetch_ent(obj, key_package, 0, hash_package) );
        HV *const stash      = gv_stashsv(class_name, 0);
        UV  const current    = check_package_cache_flag(stash);
        SV *const cache_flag = HeVAL( hv_fetch_ent(obj, key_package_cache_flag, TRUE, hash_package_cache_flag));
        SV *const map_ref    = HeVAL( hv_fetch_ent(obj, key_methods, TRUE, hash_methods));
    PPCODE:
        /* in  $self->{methods} does not yet exist (or got deleted) */
        if ( !SvROK(map_ref) || SvTYPE(SvRV(map_ref)) != SVt_PVHV ) {
            SV *new_map_ref = newRV_noinc((SV *)newHV());
            sv_2mortal(new_map_ref);
            sv_setsv(map_ref, new_map_ref);
        }

        if ( !SvOK(cache_flag) || SvUV(cache_flag) != current ) {
            mop_update_method_map(aTHX_ self, class_name, stash, (HV *)SvRV(map_ref));
            sv_setuv(cache_flag, check_package_cache_flag(stash)); /* update_cache_flag() */
        }

        XPUSHs(map_ref);
Commit	Line	Data
e7b69038	1	/* There's a lot of cases of doubled parens in here like this:
	2
	3	while ( (he = ...) ) {
	4
	5	This shuts up warnings from gcc -Wall
	6	*/
	7
e0e4674a	8	#include "EXTERN.h"
	9	#include "perl.h"
	10	#include "XSUB.h"
15273f3c	11
599791aa	12	#define NEED_sv_2pv_flags
15273f3c	13	#define NEED_sv_2pv_nolen
b0e94057	14	#include "ppport.h"
e0e4674a	15
cc856b56	16	SV *key_name;
	17	U32 hash_name;
	18
	19	SV *key_package;
	20	U32 hash_package;
	21
da88f307	22	SV *key_package_name;
	23	U32 hash_package_name;
	24
cc856b56	25	SV *key_body;
	26	U32 hash_body;
	27
c686d0ed	28	SV *key_package_cache_flag;
	29	U32 hash_package_cache_flag;
	30
	31	SV *key_methods;
	32	U32 hash_methods;
	33
00c93f7a	34	SV *method_metaclass;
	35	SV *associated_metaclass;
	36	SV *wrap;
c94afdc4	37
	38
	39	#define check_package_cache_flag(stash) mop_check_package_cache_flag(aTHX_ stash)
	40	#ifdef HvMROMETA /* 5.10.0 */
	41
	42	#ifndef mro_meta_init
	43	#define mro_meta_init(stash) Perl_mro_meta_init(aTHX_ stash) /* used in HvMROMETA macro */
	44	#endif /* !mro_meta_init */
	45
	46	static UV
	47	mop_check_package_cache_flag(pTHX_ HV* stash) {
	48	assert(SvTYPE(stash) == SVt_PVHV);
	49
	50	return HvMROMETA(stash)->pkg_gen; /* mro::get_pkg_gen($pkg) */
	51	}
	52
	53	#else /* pre 5.10.0 */
	54
	55	static UV
00c93f7a	56	mop_check_package_cache_flag(pTHX_ HV *stash) {
c94afdc4	57	PERL_UNUSED_ARG(stash);
	58	assert(SvTYPE(stash) == SVt_PVHV);
	59
	60	return PL_sub_generation;
	61	}
	62	#endif
	63
	64	#define call0(s, m) mop_call0(aTHX_ s, m)
00c93f7a	65	static SV *
00c93f7a	66	mop_call0(pTHX_ SV const self, SV const method) {
c94afdc4	67	dSP;
00c93f7a	68	SV *ret;
c94afdc4	69
	70	PUSHMARK(SP);
	71	XPUSHs(self);
	72	PUTBACK;
	73
	74	call_sv(method, G_SCALAR \| G_METHOD);
	75
	76	SPAGAIN;
	77	ret = POPs;
	78	PUTBACK;
	79
	80	return ret;
	81	}
	82
ee82a43e	83	static int
0e0b5b8d	84	get_code_info (SV coderef, char pkg, char *name)
	85	{
	86	if (!SvOK(coderef) \|\| !SvROK(coderef) \|\| SvTYPE(SvRV(coderef)) != SVt_PVCV) {
	87	return 0;
	88	}
6bd19edb	89
0e0b5b8d	90	coderef = SvRV(coderef);
	91	/* I think this only gets triggered with a mangled coderef, but if
	92	we hit it without the guard, we segfault. The slightly odd return
	93	value strikes me as an improvement (mst)
	94	*/
	95	#ifdef isGV_with_GP
	96	if ( isGV_with_GP(CvGV(coderef)) ) {
cb0ec494	97	#endif
0e0b5b8d	98	*pkg = HvNAME( GvSTASH(CvGV(coderef)) );
	99	*name = GvNAME( CvGV(coderef) );
	100	#ifdef isGV_with_GP
	101	} else {
	102	*pkg = "__UNKNOWN__";
	103	*name = "__ANON__";
c94afdc4	104	}
0e0b5b8d	105	#endif
	106
	107	return 1;
c94afdc4	108	}
c94afdc4	109
b49ee39f	110	typedef enum {
	111	TYPE_FILTER_NONE,
	112	TYPE_FILTER_CODE,
	113	TYPE_FILTER_ARRAY,
	114	TYPE_FILTER_IO,
	115	TYPE_FILTER_HASH,
	116	TYPE_FILTER_SCALAR,
	117	} type_filter_t;
	118
	119	static HV *
	120	get_all_package_symbols(HV *stash, type_filter_t filter)
	121	{
	122	HE *he;
	123	HV *ret = newHV();
	124
	125	(void)hv_iterinit(stash);
	126
	127	if (filter == TYPE_FILTER_NONE) {
	128	while ( (he = hv_iternext(stash)) ) {
	129	STRLEN keylen;
	130	char *key = HePV(he, keylen);
	131	hv_store(ret, key, keylen, SvREFCNT_inc(HeVAL(he)), 0);
	132	}
	133
	134	return ret;
	135	}
	136
	137	while ( (he = hv_iternext(stash)) ) {
	138	SV *const gv = HeVAL(he);
	139	SV *sv = NULL;
	140	char *key;
	141	STRLEN keylen;
	142	char *package;
	143	SV *fq;
	144
	145	switch( SvTYPE(gv) ) {
	146	#ifndef SVt_RV
	147	case SVt_RV:
	148	#endif
	149	case SVt_PV:
	150	case SVt_IV:
	151	/* expand the gv into a real typeglob if it
	152	* contains stub functions and we were asked to
	153	* return CODE symbols */
	154	if (filter == TYPE_FILTER_CODE) {
	155	if (SvROK(gv)) {
	156	/* we don't really care about the length,
	157	but that's the API */
	158	key = HePV(he, keylen);
	159	package = HvNAME(stash);
	160	fq = newSVpvf("%s::%s", package, key);
	161	sv = (SV *)get_cv(SvPV_nolen(fq), 0);
	162	break;
	163	}
	164
	165	key = HePV(he, keylen);
	166	gv_init((GV *)gv, stash, key, keylen, GV_ADDMULTI);
	167	}
	168	/* fall through */
	169	case SVt_PVGV:
	170	switch (filter) {
	171	case TYPE_FILTER_CODE: sv = (SV *)GvCVu(gv); break;
	172	case TYPE_FILTER_ARRAY: sv = (SV *)GvAV(gv); break;
	173	case TYPE_FILTER_IO: sv = (SV *)GvIO(gv); break;
174	case TYPE_FILTER_HASH: sv = (SV *)GvHV(gv); break;
175	case TYPE_FILTER_SCALAR: sv = (SV *)GvSV(gv); break;
176	default:
177	croak("Unknown type");
178	}
179	break;
180	default:
181	continue;
182	}
183
184	if (sv) {
185	char *key = HePV(he, keylen);
186	hv_store(ret, key, keylen, newRV_inc(sv), 0);
187	}
188	}
189
190	return ret;
191	}
c94afdc4	192
0e0b5b8d	193
0e0b5b8d	194	static void
00c93f7a	195	mop_update_method_map(pTHX_ SV const self, SV const class_name, HV const stash, HV const map) {
	196	const char const class_name_pv = HvNAME(stash); / must be HvNAME(stash), not SvPV_nolen_const(class_name) */
	197	SV *method_metaclass_name;
	198	char *method_name;
0e0b5b8d	199	I32 method_name_len;
00c93f7a	200	SV *coderef;
00c93f7a	201	HV *symbols;
0e0b5b8d	202	dSP;
	203
	204	symbols = get_all_package_symbols(stash, TYPE_FILTER_CODE);
	205
	206	(void)hv_iterinit(symbols);
	207	while ( (coderef = hv_iternextsv(symbols, &method_name, &method_name_len)) ) {
00c93f7a	208	CV cv = (CV )SvRV(coderef);
	209	char *cvpkg_name;
	210	char *cv_name;
	211	SV *method_slot;
	212	SV *method_object;
0e0b5b8d	213
	214	if (!get_code_info(coderef, &cvpkg_name, &cv_name)) {
	215	continue;
	216	}
	217
	218	/* this checks to see that the subroutine is actually from our package */
	219	if ( !(strEQ(cvpkg_name, "constant") && strEQ(cv_name, "__ANON__")) ) {
	220	if ( strNE(cvpkg_name, class_name_pv) ) {
	221	continue;
	222	}
	223	}
	224
	225	method_slot = *hv_fetch(map, method_name, method_name_len, TRUE);
	226	if ( SvOK(method_slot) ) {
	227	SV* const body = call0(method_slot, key_body); /* $method_object->body() */
00c93f7a	228	if ( SvROK(body) && ((CV *) SvRV(body)) == cv ) {
0e0b5b8d	229	continue;
	230	}
	231	}
	232
	233	method_metaclass_name = call0(self, method_metaclass); /* $self->method_metaclass() */
	234
	235	/*
	236	$method_object = $method_metaclass->wrap(
	237	$cv,
	238	associated_metaclass => $self,
	239	package_name => $class_name,
	240	name => $method_name
	241	);
	242	*/
	243	ENTER;
	244	SAVETMPS;
	245
	246	PUSHMARK(SP);
	247	EXTEND(SP, 8);
	248	PUSHs(method_metaclass_name); /* invocant */
00c93f7a	249	mPUSHs(newRV_inc((SV *)cv));
0e0b5b8d	250	PUSHs(associated_metaclass);
	251	PUSHs(self);
	252	PUSHs(key_package_name);
	253	PUSHs(class_name);
	254	PUSHs(key_name);
	255	mPUSHs(newSVpv(method_name, method_name_len));
	256	PUTBACK;
	257
	258	call_sv(wrap, G_SCALAR \| G_METHOD);
	259	SPAGAIN;
	260	method_object = POPs;
	261	PUTBACK;
	262	/* $map->{$method_name} = $method_object */
	263	sv_setsv(method_slot, method_object);
	264
	265	FREETMPS;
	266	LEAVE;
	267	}
	268	}
	269
e0e4674a	270	/*
e0e4674a	271	get_code_info:
	272	Pass in a coderef, returns:
	273	[ $pkg_name, $coderef_name ] ie:
	274	[ 'Foo::Bar', 'new' ]
	275	*/
	276
	277	MODULE = Class::MOP PACKAGE = Class::MOP
	278
cc856b56	279	BOOT:
	280	key_name = newSVpvs("name");
	281	key_body = newSVpvs("body");
	282	key_package = newSVpvs("package");
da88f307	283	key_package_name = newSVpvs("package_name");
c686d0ed	284	key_package_cache_flag = newSVpvs("_package_cache_flag");
c686d0ed	285	key_methods = newSVpvs("methods");
cc856b56	286
	287	PERL_HASH(hash_name, "name", 4);
	288	PERL_HASH(hash_body, "body", 4);
	289	PERL_HASH(hash_package, "package", 7);
da88f307	290	PERL_HASH(hash_package_name, "package_name", 12);
c686d0ed	291	PERL_HASH(hash_package_cache_flag, "_package_cache_flag", 19);
c686d0ed	292	PERL_HASH(hash_methods, "methods", 7);
cc856b56	293
c94afdc4	294	method_metaclass = newSVpvs("method_metaclass");
	295	wrap = newSVpvs("wrap");
	296	associated_metaclass = newSVpvs("associated_metaclass");
	297
cc856b56	298
d7bf3478	299	PROTOTYPES: ENABLE
d7bf3478	300
cc856b56	301
e0e4674a	302	void
e0e4674a	303	get_code_info(coderef)
00c93f7a	304	SV *coderef
0e0b5b8d	305	PREINIT:
	306	char* pkg = NULL;
	307	char* name = NULL;
	308	PPCODE:
	309	if (get_code_info(coderef, &pkg, &name)) {
	310	EXTEND(SP, 2);
	311	PUSHs(newSVpv(pkg, 0));
	312	PUSHs(newSVpv(name, 0));
	313	}
e0e4674a	314
15273f3c	315
	316	MODULE = Class::MOP PACKAGE = Class::MOP::Package
	317
	318	void
b49ee39f	319	get_all_package_symbols(self, filter=TYPE_FILTER_NONE)
cc856b56	320	SV *self
b49ee39f	321	type_filter_t filter
15273f3c	322	PROTOTYPE: $;$
15273f3c	323	PREINIT:
cc856b56	324	HV *stash = NULL;
b49ee39f	325	HV *symbols = NULL;
75705e60	326	register HE *he;
15273f3c	327	PPCODE:
a7f711e5	328	if ( ! SvROK(self) ) {
988fb42e	329	die("Cannot call get_all_package_symbols as a class method");
988fb42e	330	}
15273f3c	331
b49ee39f	332	if (GIMME_V == G_VOID) {
	333	XSRETURN_EMPTY;
	334	}
	335
15273f3c	336
15273f3c	337	PUTBACK;
15273f3c	338
b49ee39f	339	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package, 0, hash_package)) ) {
	340	stash = gv_stashsv(HeVAL(he), 0);
	341	}
15273f3c	342
15273f3c	343
b49ee39f	344	if (!stash) {
6ccb3af5	345	switch (GIMME_V) {
	346	case G_SCALAR: XSRETURN_UNDEF; break;
	347	case G_ARRAY: XSRETURN_EMPTY; break;
	348	}
b49ee39f	349	}
15273f3c	350
b49ee39f	351	symbols = get_all_package_symbols(stash, filter);
15273f3c	352
6ccb3af5	353	switch (GIMME_V) {
	354	case G_SCALAR:
	355	PUSHs(sv_2mortal(newRV_inc((SV *)symbols)));
	356	break;
	357	case G_ARRAY:
	358	warn("Class::MOP::Package::get_all_package_symbols in list context is deprecated. use scalar context instead.");
	359
	360	EXTEND(SP, HvKEYS(symbols) * 2);
	361
	362	while ((he = hv_iternext(symbols))) {
	363	PUSHs(hv_iterkeysv(he));
	364	PUSHs(sv_2mortal(SvREFCNT_inc(HeVAL(he))));
	365	}
	366
	367	break;
	368	default:
	369	break;
15273f3c	370	}
15273f3c	371
b49ee39f	372	SvREFCNT_dec((SV *)symbols);
b49ee39f	373
e2c189ae	374	void
cc856b56	375	name(self)
	376	SV *self
	377	PREINIT:
	378	register HE *he;
	379	PPCODE:
a7f711e5	380	if ( ! SvROK(self) ) {
988fb42e	381	die("Cannot call name as a class method");
	382	}
	383
e7b69038	384	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package, 0, hash_package)) )
cc856b56	385	XPUSHs(HeVAL(he));
	386	else
	387	ST(0) = &PL_sv_undef;
	388
dcbfe027	389	MODULE = Class::MOP PACKAGE = Class::MOP::Attribute
cc856b56	390
e2c189ae	391	void
cc856b56	392	name(self)
	393	SV *self
	394	PREINIT:
	395	register HE *he;
	396	PPCODE:
a7f711e5	397	if ( ! SvROK(self) ) {
988fb42e	398	die("Cannot call name as a class method");
	399	}
	400
e7b69038	401	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_name, 0, hash_name)) )
cc856b56	402	XPUSHs(HeVAL(he));
	403	else
	404	ST(0) = &PL_sv_undef;
	405
dcbfe027	406	MODULE = Class::MOP PACKAGE = Class::MOP::Method
cc856b56	407
e2c189ae	408	void
da88f307	409	name(self)
	410	SV *self
	411	PREINIT:
	412	register HE *he;
	413	PPCODE:
a7f711e5	414	if ( ! SvROK(self) ) {
da88f307	415	die("Cannot call name as a class method");
	416	}
	417
e7b69038	418	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_name, 0, hash_name)) )
da88f307	419	XPUSHs(HeVAL(he));
	420	else
	421	ST(0) = &PL_sv_undef;
	422
e2c189ae	423	void
da88f307	424	package_name(self)
	425	SV *self
	426	PREINIT:
	427	register HE *he;
	428	PPCODE:
a7f711e5	429	if ( ! SvROK(self) ) {
da88f307	430	die("Cannot call package_name as a class method");
	431	}
	432
e7b69038	433	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package_name, 0, hash_package_name)) )
da88f307	434	XPUSHs(HeVAL(he));
	435	else
	436	ST(0) = &PL_sv_undef;
	437
e2c189ae	438	void
cc856b56	439	body(self)
	440	SV *self
	441	PREINIT:
	442	register HE *he;
	443	PPCODE:
a7f711e5	444	if ( ! SvROK(self) ) {
da88f307	445	die("Cannot call body as a class method");
	446	}
	447
e7b69038	448	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_body, 0, hash_body)) )
cc856b56	449	XPUSHs(HeVAL(he));
	450	else
	451	ST(0) = &PL_sv_undef;
c94afdc4	452
	453
	454	MODULE = Class::MOP PACKAGE = Class::MOP::Class
	455
	456	void
	457	get_method_map(self)
00c93f7a	458	SV *self
c200a770	459	PREINIT:
c686d0ed	460	HV const obj = (HV )SvRV(self);
	461	SV *const class_name = HeVAL( hv_fetch_ent(obj, key_package, 0, hash_package) );
	462	HV *const stash = gv_stashsv(class_name, 0);
c200a770	463	UV const current = check_package_cache_flag(stash);
c686d0ed	464	SV *const cache_flag = HeVAL( hv_fetch_ent(obj, key_package_cache_flag, TRUE, hash_package_cache_flag));
c686d0ed	465	SV *const map_ref = HeVAL( hv_fetch_ent(obj, key_methods, TRUE, hash_methods));
c200a770	466	PPCODE:
c200a770	467	/* in $self->{methods} does not yet exist (or got deleted) */
c686d0ed	468	if ( !SvROK(map_ref) \|\| SvTYPE(SvRV(map_ref)) != SVt_PVHV ) {
00c93f7a	469	SV new_map_ref = newRV_noinc((SV )newHV());
c200a770	470	sv_2mortal(new_map_ref);
	471	sv_setsv(map_ref, new_map_ref);
	472	}
c94afdc4	473
c686d0ed	474	if ( !SvOK(cache_flag) \|\| SvUV(cache_flag) != current ) {
00c93f7a	475	mop_update_method_map(aTHX_ self, class_name, stash, (HV *)SvRV(map_ref));
c200a770	476	sv_setuv(cache_flag, check_package_cache_flag(stash)); /* update_cache_flag() */
c200a770	477	}
	478
	479	XPUSHs(map_ref);