[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_newRV_noinc
#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);
            if (!hv_store(ret, key, keylen, SvREFCNT_inc(HeVAL(he)), 0)) {
                croak("failed to store glob ref");
            }
        }

        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);
            if (!hv_store(ret, key, keylen, newRV_inc(sv), 0)) {
                croak("failed to store symbol ref");
            }
        }
    }

    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
08f4716f	12	#define NEED_newRV_noinc
599791aa	13	#define NEED_sv_2pv_flags
15273f3c	14	#define NEED_sv_2pv_nolen
b0e94057	15	#include "ppport.h"
e0e4674a	16
cc856b56	17	SV *key_name;
	18	U32 hash_name;
	19
	20	SV *key_package;
	21	U32 hash_package;
	22
da88f307	23	SV *key_package_name;
	24	U32 hash_package_name;
	25
cc856b56	26	SV *key_body;
	27	U32 hash_body;
	28
c686d0ed	29	SV *key_package_cache_flag;
	30	U32 hash_package_cache_flag;
	31
	32	SV *key_methods;
	33	U32 hash_methods;
	34
00c93f7a	35	SV *method_metaclass;
	36	SV *associated_metaclass;
	37	SV *wrap;
c94afdc4	38
	39
	40	#define check_package_cache_flag(stash) mop_check_package_cache_flag(aTHX_ stash)
	41	#ifdef HvMROMETA /* 5.10.0 */
	42
	43	#ifndef mro_meta_init
	44	#define mro_meta_init(stash) Perl_mro_meta_init(aTHX_ stash) /* used in HvMROMETA macro */
	45	#endif /* !mro_meta_init */
	46
	47	static UV
	48	mop_check_package_cache_flag(pTHX_ HV* stash) {
	49	assert(SvTYPE(stash) == SVt_PVHV);
	50
	51	return HvMROMETA(stash)->pkg_gen; /* mro::get_pkg_gen($pkg) */
	52	}
	53
	54	#else /* pre 5.10.0 */
	55
	56	static UV
00c93f7a	57	mop_check_package_cache_flag(pTHX_ HV *stash) {
c94afdc4	58	PERL_UNUSED_ARG(stash);
	59	assert(SvTYPE(stash) == SVt_PVHV);
	60
	61	return PL_sub_generation;
	62	}
	63	#endif
	64
	65	#define call0(s, m) mop_call0(aTHX_ s, m)
00c93f7a	66	static SV *
00c93f7a	67	mop_call0(pTHX_ SV const self, SV const method) {
c94afdc4	68	dSP;
00c93f7a	69	SV *ret;
c94afdc4	70
	71	PUSHMARK(SP);
	72	XPUSHs(self);
	73	PUTBACK;
	74
	75	call_sv(method, G_SCALAR \| G_METHOD);
	76
	77	SPAGAIN;
	78	ret = POPs;
	79	PUTBACK;
	80
	81	return ret;
	82	}
	83
ee82a43e	84	static int
0e0b5b8d	85	get_code_info (SV coderef, char pkg, char *name)
	86	{
	87	if (!SvOK(coderef) \|\| !SvROK(coderef) \|\| SvTYPE(SvRV(coderef)) != SVt_PVCV) {
	88	return 0;
	89	}
6bd19edb	90
0e0b5b8d	91	coderef = SvRV(coderef);
	92	/* I think this only gets triggered with a mangled coderef, but if
	93	we hit it without the guard, we segfault. The slightly odd return
	94	value strikes me as an improvement (mst)
	95	*/
	96	#ifdef isGV_with_GP
	97	if ( isGV_with_GP(CvGV(coderef)) ) {
cb0ec494	98	#endif
0e0b5b8d	99	*pkg = HvNAME( GvSTASH(CvGV(coderef)) );
	100	*name = GvNAME( CvGV(coderef) );
	101	#ifdef isGV_with_GP
	102	} else {
	103	*pkg = "__UNKNOWN__";
	104	*name = "__ANON__";
c94afdc4	105	}
0e0b5b8d	106	#endif
	107
	108	return 1;
c94afdc4	109	}
c94afdc4	110
b49ee39f	111	typedef enum {
	112	TYPE_FILTER_NONE,
	113	TYPE_FILTER_CODE,
	114	TYPE_FILTER_ARRAY,
	115	TYPE_FILTER_IO,
	116	TYPE_FILTER_HASH,
	117	TYPE_FILTER_SCALAR,
	118	} type_filter_t;
	119
	120	static HV *
	121	get_all_package_symbols(HV *stash, type_filter_t filter)
	122	{
	123	HE *he;
	124	HV *ret = newHV();
	125
	126	(void)hv_iterinit(stash);
	127
	128	if (filter == TYPE_FILTER_NONE) {
	129	while ( (he = hv_iternext(stash)) ) {
	130	STRLEN keylen;
	131	char *key = HePV(he, keylen);
7291ecef	132	if (!hv_store(ret, key, keylen, SvREFCNT_inc(HeVAL(he)), 0)) {
	133	croak("failed to store glob ref");
	134	}
b49ee39f	135	}
	136
	137	return ret;
	138	}
	139
	140	while ( (he = hv_iternext(stash)) ) {
	141	SV *const gv = HeVAL(he);
	142	SV *sv = NULL;
	143	char *key;
	144	STRLEN keylen;
	145	char *package;
	146	SV *fq;
	147
	148	switch( SvTYPE(gv) ) {
	149	#ifndef SVt_RV
	150	case SVt_RV:
	151	#endif
	152	case SVt_PV:
	153	case SVt_IV:
	154	/* expand the gv into a real typeglob if it
	155	* contains stub functions and we were asked to
	156	* return CODE symbols */
	157	if (filter == TYPE_FILTER_CODE) {
	158	if (SvROK(gv)) {
	159	/* we don't really care about the length,
	160	but that's the API */
	161	key = HePV(he, keylen);
	162	package = HvNAME(stash);
	163	fq = newSVpvf("%s::%s", package, key);
	164	sv = (SV *)get_cv(SvPV_nolen(fq), 0);
	165	break;
	166	}
	167
	168	key = HePV(he, keylen);
	169	gv_init((GV *)gv, stash, key, keylen, GV_ADDMULTI);
	170	}
	171	/* fall through */
	172	case SVt_PVGV:
	173	switch (filter) {
	174	case TYPE_FILTER_CODE: sv = (SV *)GvCVu(gv); break;
	175	case TYPE_FILTER_ARRAY: sv = (SV *)GvAV(gv); break;
	176	case TYPE_FILTER_IO: sv = (SV *)GvIO(gv); break;
	177	case TYPE_FILTER_HASH: sv = (SV *)GvHV(gv); break;
	178	case TYPE_FILTER_SCALAR: sv = (SV *)GvSV(gv); break;
	179	default:
	180	croak("Unknown type");
	181	}
	182	break;
	183	default:
	184	continue;
	185	}
	186
	187	if (sv) {
	188	char *key = HePV(he, keylen);
7291ecef	189	if (!hv_store(ret, key, keylen, newRV_inc(sv), 0)) {
	190	croak("failed to store symbol ref");
	191	}
b49ee39f	192	}
	193	}
	194
	195	return ret;
	196	}
c94afdc4	197
0e0b5b8d	198
0e0b5b8d	199	static void
00c93f7a	200	mop_update_method_map(pTHX_ SV const self, SV const class_name, HV const stash, HV const map) {
	201	const char const class_name_pv = HvNAME(stash); / must be HvNAME(stash), not SvPV_nolen_const(class_name) */
	202	SV *method_metaclass_name;
	203	char *method_name;
0e0b5b8d	204	I32 method_name_len;
00c93f7a	205	SV *coderef;
00c93f7a	206	HV *symbols;
0e0b5b8d	207	dSP;
	208
	209	symbols = get_all_package_symbols(stash, TYPE_FILTER_CODE);
	210
	211	(void)hv_iterinit(symbols);
	212	while ( (coderef = hv_iternextsv(symbols, &method_name, &method_name_len)) ) {
00c93f7a	213	CV cv = (CV )SvRV(coderef);
	214	char *cvpkg_name;
	215	char *cv_name;
	216	SV *method_slot;
	217	SV *method_object;
0e0b5b8d	218
	219	if (!get_code_info(coderef, &cvpkg_name, &cv_name)) {
	220	continue;
	221	}
	222
	223	/* this checks to see that the subroutine is actually from our package */
	224	if ( !(strEQ(cvpkg_name, "constant") && strEQ(cv_name, "__ANON__")) ) {
	225	if ( strNE(cvpkg_name, class_name_pv) ) {
	226	continue;
	227	}
	228	}
	229
	230	method_slot = *hv_fetch(map, method_name, method_name_len, TRUE);
	231	if ( SvOK(method_slot) ) {
6d915932	232	SV const body = call0(method_slot, key_body); / $method_object->body() */
00c93f7a	233	if ( SvROK(body) && ((CV *) SvRV(body)) == cv ) {
0e0b5b8d	234	continue;
	235	}
	236	}
	237
	238	method_metaclass_name = call0(self, method_metaclass); /* $self->method_metaclass() */
	239
	240	/*
	241	$method_object = $method_metaclass->wrap(
	242	$cv,
	243	associated_metaclass => $self,
	244	package_name => $class_name,
	245	name => $method_name
	246	);
	247	*/
	248	ENTER;
	249	SAVETMPS;
	250
	251	PUSHMARK(SP);
	252	EXTEND(SP, 8);
	253	PUSHs(method_metaclass_name); /* invocant */
00c93f7a	254	mPUSHs(newRV_inc((SV *)cv));
0e0b5b8d	255	PUSHs(associated_metaclass);
	256	PUSHs(self);
	257	PUSHs(key_package_name);
	258	PUSHs(class_name);
	259	PUSHs(key_name);
	260	mPUSHs(newSVpv(method_name, method_name_len));
	261	PUTBACK;
	262
	263	call_sv(wrap, G_SCALAR \| G_METHOD);
	264	SPAGAIN;
	265	method_object = POPs;
	266	PUTBACK;
	267	/* $map->{$method_name} = $method_object */
	268	sv_setsv(method_slot, method_object);
	269
	270	FREETMPS;
	271	LEAVE;
	272	}
	273	}
	274
e0e4674a	275	/*
e0e4674a	276	get_code_info:
	277	Pass in a coderef, returns:
	278	[ $pkg_name, $coderef_name ] ie:
	279	[ 'Foo::Bar', 'new' ]
	280	*/
	281
	282	MODULE = Class::MOP PACKAGE = Class::MOP
	283
cc856b56	284	BOOT:
	285	key_name = newSVpvs("name");
	286	key_body = newSVpvs("body");
	287	key_package = newSVpvs("package");
da88f307	288	key_package_name = newSVpvs("package_name");
c686d0ed	289	key_package_cache_flag = newSVpvs("_package_cache_flag");
c686d0ed	290	key_methods = newSVpvs("methods");
cc856b56	291
	292	PERL_HASH(hash_name, "name", 4);
	293	PERL_HASH(hash_body, "body", 4);
	294	PERL_HASH(hash_package, "package", 7);
da88f307	295	PERL_HASH(hash_package_name, "package_name", 12);
c686d0ed	296	PERL_HASH(hash_package_cache_flag, "_package_cache_flag", 19);
c686d0ed	297	PERL_HASH(hash_methods, "methods", 7);
cc856b56	298
c94afdc4	299	method_metaclass = newSVpvs("method_metaclass");
	300	wrap = newSVpvs("wrap");
	301	associated_metaclass = newSVpvs("associated_metaclass");
	302
cc856b56	303
d7bf3478	304	PROTOTYPES: ENABLE
d7bf3478	305
cc856b56	306
e0e4674a	307	void
e0e4674a	308	get_code_info(coderef)
00c93f7a	309	SV *coderef
0e0b5b8d	310	PREINIT:
6d915932	311	char *pkg = NULL;
6d915932	312	char *name = NULL;
0e0b5b8d	313	PPCODE:
	314	if (get_code_info(coderef, &pkg, &name)) {
	315	EXTEND(SP, 2);
	316	PUSHs(newSVpv(pkg, 0));
	317	PUSHs(newSVpv(name, 0));
	318	}
e0e4674a	319
15273f3c	320
	321	MODULE = Class::MOP PACKAGE = Class::MOP::Package
	322
	323	void
b49ee39f	324	get_all_package_symbols(self, filter=TYPE_FILTER_NONE)
cc856b56	325	SV *self
b49ee39f	326	type_filter_t filter
15273f3c	327	PROTOTYPE: $;$
15273f3c	328	PREINIT:
cc856b56	329	HV *stash = NULL;
b49ee39f	330	HV *symbols = NULL;
75705e60	331	register HE *he;
15273f3c	332	PPCODE:
a7f711e5	333	if ( ! SvROK(self) ) {
988fb42e	334	die("Cannot call get_all_package_symbols as a class method");
988fb42e	335	}
15273f3c	336
b49ee39f	337	if (GIMME_V == G_VOID) {
	338	XSRETURN_EMPTY;
	339	}
	340
15273f3c	341
15273f3c	342	PUTBACK;
15273f3c	343
b49ee39f	344	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package, 0, hash_package)) ) {
	345	stash = gv_stashsv(HeVAL(he), 0);
	346	}
15273f3c	347
15273f3c	348
b49ee39f	349	if (!stash) {
6ccb3af5	350	switch (GIMME_V) {
	351	case G_SCALAR: XSRETURN_UNDEF; break;
	352	case G_ARRAY: XSRETURN_EMPTY; break;
	353	}
b49ee39f	354	}
15273f3c	355
b49ee39f	356	symbols = get_all_package_symbols(stash, filter);
15273f3c	357
6ccb3af5	358	switch (GIMME_V) {
	359	case G_SCALAR:
	360	PUSHs(sv_2mortal(newRV_inc((SV *)symbols)));
	361	break;
	362	case G_ARRAY:
	363	warn("Class::MOP::Package::get_all_package_symbols in list context is deprecated. use scalar context instead.");
	364
	365	EXTEND(SP, HvKEYS(symbols) * 2);
	366
	367	while ((he = hv_iternext(symbols))) {
	368	PUSHs(hv_iterkeysv(he));
	369	PUSHs(sv_2mortal(SvREFCNT_inc(HeVAL(he))));
	370	}
	371
	372	break;
	373	default:
	374	break;
15273f3c	375	}
15273f3c	376
b49ee39f	377	SvREFCNT_dec((SV *)symbols);
b49ee39f	378
e2c189ae	379	void
cc856b56	380	name(self)
	381	SV *self
	382	PREINIT:
	383	register HE *he;
	384	PPCODE:
a7f711e5	385	if ( ! SvROK(self) ) {
988fb42e	386	die("Cannot call name as a class method");
	387	}
	388
e7b69038	389	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package, 0, hash_package)) )
cc856b56	390	XPUSHs(HeVAL(he));
	391	else
	392	ST(0) = &PL_sv_undef;
	393
dcbfe027	394	MODULE = Class::MOP PACKAGE = Class::MOP::Attribute
cc856b56	395
e2c189ae	396	void
cc856b56	397	name(self)
	398	SV *self
	399	PREINIT:
	400	register HE *he;
	401	PPCODE:
a7f711e5	402	if ( ! SvROK(self) ) {
988fb42e	403	die("Cannot call name as a class method");
	404	}
	405
e7b69038	406	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_name, 0, hash_name)) )
cc856b56	407	XPUSHs(HeVAL(he));
	408	else
	409	ST(0) = &PL_sv_undef;
	410
dcbfe027	411	MODULE = Class::MOP PACKAGE = Class::MOP::Method
cc856b56	412
e2c189ae	413	void
da88f307	414	name(self)
	415	SV *self
	416	PREINIT:
	417	register HE *he;
	418	PPCODE:
a7f711e5	419	if ( ! SvROK(self) ) {
da88f307	420	die("Cannot call name as a class method");
	421	}
	422
e7b69038	423	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_name, 0, hash_name)) )
da88f307	424	XPUSHs(HeVAL(he));
	425	else
	426	ST(0) = &PL_sv_undef;
	427
e2c189ae	428	void
da88f307	429	package_name(self)
	430	SV *self
	431	PREINIT:
	432	register HE *he;
	433	PPCODE:
a7f711e5	434	if ( ! SvROK(self) ) {
da88f307	435	die("Cannot call package_name as a class method");
	436	}
	437
e7b69038	438	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_package_name, 0, hash_package_name)) )
da88f307	439	XPUSHs(HeVAL(he));
	440	else
	441	ST(0) = &PL_sv_undef;
	442
e2c189ae	443	void
cc856b56	444	body(self)
	445	SV *self
	446	PREINIT:
	447	register HE *he;
	448	PPCODE:
a7f711e5	449	if ( ! SvROK(self) ) {
da88f307	450	die("Cannot call body as a class method");
	451	}
	452
e7b69038	453	if ( (he = hv_fetch_ent((HV *)SvRV(self), key_body, 0, hash_body)) )
cc856b56	454	XPUSHs(HeVAL(he));
	455	else
	456	ST(0) = &PL_sv_undef;
c94afdc4	457
	458
	459	MODULE = Class::MOP PACKAGE = Class::MOP::Class
	460
	461	void
	462	get_method_map(self)
00c93f7a	463	SV *self
c200a770	464	PREINIT:
c686d0ed	465	HV const obj = (HV )SvRV(self);
	466	SV *const class_name = HeVAL( hv_fetch_ent(obj, key_package, 0, hash_package) );
	467	HV *const stash = gv_stashsv(class_name, 0);
c200a770	468	UV const current = check_package_cache_flag(stash);
c686d0ed	469	SV *const cache_flag = HeVAL( hv_fetch_ent(obj, key_package_cache_flag, TRUE, hash_package_cache_flag));
c686d0ed	470	SV *const map_ref = HeVAL( hv_fetch_ent(obj, key_methods, TRUE, hash_methods));
c200a770	471	PPCODE:
c200a770	472	/* in $self->{methods} does not yet exist (or got deleted) */
c686d0ed	473	if ( !SvROK(map_ref) \|\| SvTYPE(SvRV(map_ref)) != SVt_PVHV ) {
00c93f7a	474	SV new_map_ref = newRV_noinc((SV )newHV());
c200a770	475	sv_2mortal(new_map_ref);
	476	sv_setsv(map_ref, new_map_ref);
	477	}
c94afdc4	478
c686d0ed	479	if ( !SvOK(cache_flag) \|\| SvUV(cache_flag) != current ) {
00c93f7a	480	mop_update_method_map(aTHX_ self, class_name, stash, (HV *)SvRV(map_ref));
c200a770	481	sv_setuv(cache_flag, check_package_cache_flag(stash)); /* update_cache_flag() */
c200a770	482	}
	483
	484	XPUSHs(map_ref);