convert the XS implementation to its own dist

1 files changed, 0 insertions, 743 deletions

diff --git a/Stash.xs b/Stash.xs
deleted file mode 100644
index 5124997..0000000
--- a/Stash.xs
+++ /dev/null
@@ -1,743 +0,0 @@
-#include "EXTERN.h"
-#include "perl.h"
-#include "XSUB.h"
-
-#define NEED_newRV_noinc
-#define NEED_sv_2pv_flags
-#include "ppport.h"
-
-#ifndef gv_fetchsv
-#define gv_fetchsv(n,f,t) gv_fetchpv(SvPV_nolen(n), f, t)
-#endif
-
-#ifndef mro_method_changed_in
-#define mro_method_changed_in(x) PL_sub_generation++
-#endif
-
-#ifdef newSVhek
-#define newSVhe(he) newSVhek(HeKEY_hek(he))
-#else
-#define newSVhe(he) newSVpv(HePV(he, PL_na), 0)
-#endif
-
-#ifndef savesvpv
-#define savesvpv(s) savepv(SvPV_nolen(s))
-#endif
-
-/* HACK: scalar slots are always populated on perl < 5.10, so treat undef
- * as nonexistent. this is consistent with the previous behavior of the pure
- * perl version of this module (since this is the behavior that perl sees
- * in all versions */
-#if PERL_VERSION < 10
-#define GvSVOK(g) (GvSV(g) && SvTYPE(GvSV(g)) != SVt_NULL)
-#else
-#define GvSVOK(g) GvSV(g)
-#endif
-
-#define GvAVOK(g) GvAV(g)
-#define GvHVOK(g) GvHV(g)
-#define GvCVOK(g) GvCVu(g) /* XXX: should this really be GvCVu? or GvCV? */
-#define GvIOOK(g) GvIO(g)
-
-/* see above - don't let scalar slots become unpopulated, this breaks
- * assumptions in core */
-#if PERL_VERSION < 10
-#define GvSetSV(g,v) do {               \
-    SV *_v = (SV*)(v);                  \
-    SvREFCNT_dec(GvSV(g));              \
-    if ((GvSV(g) = _v ? _v : newSV(0))) \
-        GvIMPORTED_SV_on(g);            \
-} while (0)
-#else
-#define GvSetSV(g,v) do {               \
-    SvREFCNT_dec(GvSV(g));              \
-    if ((GvSV(g) = (SV*)(v)))           \
-        GvIMPORTED_SV_on(g);            \
-} while (0)
-#endif
-
-#define GvSetAV(g,v) do {               \
-    SvREFCNT_dec(GvAV(g));              \
-    if ((GvAV(g) = (AV*)(v)))           \
-        GvIMPORTED_AV_on(g);            \
-} while (0)
-#define GvSetHV(g,v) do {               \
-    SvREFCNT_dec(GvHV(g));              \
-    if ((GvHV(g) = (HV*)(v)))           \
-        GvIMPORTED_HV_on(g);            \
-} while (0)
-#define GvSetCV(g,v) do {               \
-    SvREFCNT_dec(GvCV(g));              \
-    if ((GvCV(g) = (CV*)(v))) {         \
-        GvIMPORTED_CV_on(g);            \
-        GvASSUMECV_on(g);               \
-    }                                   \
-    GvCVGEN(g) = 0;                     \
-    mro_method_changed_in(GvSTASH(g));  \
-} while (0)
-#define GvSetIO(g,v) do {               \
-    SvREFCNT_dec(GvIO(g));              \
-    GvIOp(g) = (IO*)(v);                \
-} while (0)
-
-typedef enum {
-    VAR_NONE = 0,
-    VAR_SCALAR,
-    VAR_ARRAY,
-    VAR_HASH,
-    VAR_CODE,
-    VAR_IO,
-    VAR_GLOB,  /* TODO: unimplemented */
-    VAR_FORMAT /* TODO: unimplemented */
-} vartype_t;
-
-typedef struct {
-    vartype_t type;
-    SV *name;
-} varspec_t;
-
-static U32 name_hash, namespace_hash, type_hash;
-static SV *name_key, *namespace_key, *type_key;
-
-const char *vartype_to_string(vartype_t type)
-{
-    switch (type) {
-    case VAR_SCALAR:
-        return "SCALAR";
-    case VAR_ARRAY:
-        return "ARRAY";
-    case VAR_HASH:
-        return "HASH";
-    case VAR_CODE:
-        return "CODE";
-    case VAR_IO:
-        return "IO";
-    default:
-        return "unknown";
-    }
-}
-
-I32 vartype_to_svtype(vartype_t type)
-{
-    switch (type) {
-    case VAR_SCALAR:
-        return SVt_PV; /* or whatever */
-    case VAR_ARRAY:
-        return SVt_PVAV;
-    case VAR_HASH:
-        return SVt_PVHV;
-    case VAR_CODE:
-        return SVt_PVCV;
-    case VAR_IO:
-        return SVt_PVIO;
-    default:
-        return SVt_NULL;
-    }
-}
-
-vartype_t string_to_vartype(char *vartype)
-{
-    if (strEQ(vartype, "SCALAR")) {
-        return VAR_SCALAR;
-    }
-    else if (strEQ(vartype, "ARRAY")) {
-        return VAR_ARRAY;
-    }
-    else if (strEQ(vartype, "HASH")) {
-        return VAR_HASH;
-    }
-    else if (strEQ(vartype, "CODE")) {
-        return VAR_CODE;
-    }
-    else if (strEQ(vartype, "IO")) {
-        return VAR_IO;
-    }
-    else {
-        croak("Type must be one of 'SCALAR', 'ARRAY', 'HASH', 'CODE', or 'IO'");
-    }
-}
-
-void _deconstruct_variable_name(SV *variable, varspec_t *varspec)
-{
-    char *varpv;
-
-    if (!SvCUR(variable))
-        croak("You must pass a variable name");
-
-    varspec->name = sv_2mortal(newSVsv(variable));
-
-    varpv = SvPV_nolen(varspec->name);
-    switch (varpv[0]) {
-    case '$':
-        varspec->type = VAR_SCALAR;
-        sv_chop(varspec->name, &varpv[1]);
-        break;
-    case '@':
-        varspec->type = VAR_ARRAY;
-        sv_chop(varspec->name, &varpv[1]);
-        break;
-    case '%':
-        varspec->type = VAR_HASH;
-        sv_chop(varspec->name, &varpv[1]);
-        break;
-    case '&':
-        varspec->type = VAR_CODE;
-        sv_chop(varspec->name, &varpv[1]);
-        break;
-    default:
-        varspec->type = VAR_IO;
-        break;
-    }
-}
-
-void _deconstruct_variable_hash(HV *variable, varspec_t *varspec)
-{
-    HE *val;
-    STRLEN len;
-
-    val = hv_fetch_ent(variable, name_key, 0, name_hash);
-    if (!val)
-        croak("The 'name' key is required in variable specs");
-
-    varspec->name = sv_2mortal(newSVhe(val));
-
-    val = hv_fetch_ent(variable, type_key, 0, type_hash);
-    if (!val)
-        croak("The 'type' key is required in variable specs");
-
-    varspec->type = string_to_vartype(HePV(val, len));
-}
-
-int _valid_for_type(SV *value, vartype_t type)
-{
-    svtype sv_type = SvROK(value) ? SvTYPE(SvRV(value)) : SVt_NULL;
-
-    switch (type) {
-    case VAR_SCALAR:
-        return sv_type == SVt_NULL ||
-               sv_type == SVt_IV   ||
-               sv_type == SVt_NV   ||
-               sv_type == SVt_PV   ||
-               sv_type == SVt_RV;
-    case VAR_ARRAY:
-        return sv_type == SVt_PVAV;
-    case VAR_HASH:
-        return sv_type == SVt_PVHV;
-    case VAR_CODE:
-        return sv_type == SVt_PVCV;
-    case VAR_IO:
-        return sv_type == SVt_PVIO;
-    default:
-        return 0;
-    }
-}
-
-HV *_get_namespace(SV *self)
-{
-    dSP;
-    SV *ret;
-
-    PUSHMARK(SP);
-    XPUSHs(self);
-    PUTBACK;
-
-    call_method("namespace", G_SCALAR);
-
-    SPAGAIN;
-    ret = POPs;
-    PUTBACK;
-
-    return (HV*)SvRV(ret);
-}
-
-SV *_get_name(SV *self)
-{
-    dSP;
-    SV *ret;
-
-    PUSHMARK(SP);
-    XPUSHs(self);
-    PUTBACK;
-
-    call_method("name", G_SCALAR);
-
-    SPAGAIN;
-    ret = POPs;
-    PUTBACK;
-
-    return ret;
-}
-
-void _expand_glob(SV *self, SV *varname)
-{
-    SV *name;
-
-    name = newSVsv(_get_name(self));
-    sv_catpvs(name, "::");
-    sv_catsv(name, varname);
-
-    /* can't use gv_init here, because it screws up @ISA in a way that I
-     * can't reproduce, but that CMOP triggers */
-    gv_fetchsv(name, GV_ADD, SVt_NULL);
-    SvREFCNT_dec(name);
-}
-
-SV *_get_symbol(SV *self, varspec_t *variable, int vivify)
-{
-    HV *namespace;
-    HE *entry;
-    GV *glob;
-
-    namespace = _get_namespace(self);
-    entry = hv_fetch_ent(namespace, variable->name, vivify, 0);
-    if (!entry)
-        return NULL;
-
-    glob = (GV*)(HeVAL(entry));
-    if (!isGV(glob))
-        _expand_glob(self, variable->name);
-
-    if (vivify) {
-        switch (variable->type) {
-        case VAR_SCALAR:
-            if (!GvSVOK(glob))
-                GvSetSV(glob, newSV(0));
-            break;
-        case VAR_ARRAY:
-            if (!GvAVOK(glob))
-                GvSetAV(glob, newAV());
-            break;
-        case VAR_HASH:
-            if (!GvHVOK(glob))
-                GvSetHV(glob, newHV());
-            break;
-        case VAR_CODE:
-            croak("Don't know how to vivify CODE variables");
-        case VAR_IO:
-            if (!GvIOOK(glob))
-                GvSetIO(glob, newIO());
-            break;
-        default:
-            croak("Unknown type in vivication");
-        }
-    }
-
-    switch (variable->type) {
-    case VAR_SCALAR:
-        return GvSV(glob);
-    case VAR_ARRAY:
-        return (SV*)GvAV(glob);
-    case VAR_HASH:
-        return (SV*)GvHV(glob);
-    case VAR_CODE:
-        return (SV*)GvCV(glob);
-    case VAR_IO:
-        return (SV*)GvIO(glob);
-    default:
-        return NULL;
-    }
-}
-
-MODULE = Package::Stash  PACKAGE = Package::Stash
-
-PROTOTYPES: DISABLE
-
-SV*
-new(class, package_name)
-    SV *class
-    SV *package_name
-  PREINIT:
-    HV *instance;
-    HV *namespace;
-    SV *nsref;
-  CODE:
-    if (!SvPOK(package_name))
-        croak("The constructor argument must be the name of a package");
-
-    instance = newHV();
-
-    if (!hv_store(instance, "name", 4, SvREFCNT_inc_simple_NN(package_name), 0)) {
-        SvREFCNT_dec(package_name);
-        SvREFCNT_dec(instance);
-        croak("Couldn't initialize the 'name' key, hv_store failed");
-    }
-    namespace = gv_stashpv(SvPV_nolen(package_name), GV_ADD);
-    nsref = newRV_inc((SV*)namespace);
-    if (!hv_store(instance, "namespace", 9, nsref, 0)) {
-        SvREFCNT_dec(nsref);
-        SvREFCNT_dec(instance);
-        croak("Couldn't initialize the 'namespace' key, hv_store failed");
-    }
-
-    RETVAL = sv_bless(newRV_noinc((SV*)instance), gv_stashsv(class, 0));
-  OUTPUT:
-    RETVAL
-
-SV*
-name(self)
-    SV *self
-  PREINIT:
-    HE *slot;
-  CODE:
-    if (!sv_isobject(self))
-        croak("Can't call name as a class method");
-    slot = hv_fetch_ent((HV*)SvRV(self), name_key, 0, name_hash);
-    RETVAL = slot ? SvREFCNT_inc_simple_NN(HeVAL(slot)) : &PL_sv_undef;
-  OUTPUT:
-    RETVAL
-
-SV*
-namespace(self)
-    SV *self
-  PREINIT:
-    HE *slot;
-  CODE:
-    if (!sv_isobject(self))
-        croak("Can't call namespace as a class method");
-    slot = hv_fetch_ent((HV*)SvRV(self), namespace_key, 0, namespace_hash);
-    RETVAL = slot ? SvREFCNT_inc_simple_NN(HeVAL(slot)) : &PL_sv_undef;
-  OUTPUT:
-    RETVAL
-
-void
-add_symbol(self, variable, initial=NULL, ...)
-    SV *self
-    varspec_t variable
-    SV *initial
-  PREINIT:
-    SV *name;
-    GV *glob;
-  CODE:
-    if (initial && !_valid_for_type(initial, variable.type))
-        croak("%s is not of type %s",
-              SvPV_nolen(initial), vartype_to_string(variable.type));
-
-    name = newSVsv(_get_name(self));
-    sv_catpvs(name, "::");
-    sv_catsv(name, variable.name);
-
-    if (items > 2 && (PL_perldb & 0x10) && variable.type == VAR_CODE) {
-        int i;
-        char *filename = NULL;
-        I32 first_line_num = -1, last_line_num = -1;
-        STRLEN namelen;
-        SV *dbval;
-        HV *dbsub;
-
-        if ((items - 3) % 2)
-            croak("add_symbol: Odd number of elements in %%opts");
-
-        for (i = 3; i < items; i += 2) {
-            char *key;
-            key = SvPV_nolen(ST(i));
-            if (strEQ(key, "filename")) {
-                if (!SvPOK(ST(i + 1)))
-                    croak("add_symbol: filename must be a string");
-                filename = SvPV_nolen(ST(i + 1));
-            }
-            else if (strEQ(key, "first_line_num")) {
-                if (!SvIOK(ST(i + 1)))
-                    croak("add_symbol: first_line_num must be an integer");
-                first_line_num = SvIV(ST(i + 1));
-            }
-            else if (strEQ(key, "last_line_num")) {
-                if (!SvIOK(ST(i + 1)))
-                    croak("add_symbol: last_line_num must be an integer");
-                last_line_num = SvIV(ST(i + 1));
-            }
-        }
-
-        if (!filename || first_line_num == -1) {
-            if (!filename)
-                filename = CopFILE(PL_curcop);
-            if (first_line_num == -1)
-                first_line_num = PL_curcop->cop_line;
-        }
-
-        if (last_line_num == -1)
-            last_line_num = first_line_num;
-
-        /* http://perldoc.perl.org/perldebguts.html#Debugger-Internals */
-        dbsub = get_hv("DB::sub", 1);
-        dbval = newSVpvf("%s:%d-%d", filename, first_line_num, last_line_num);
-        if (!hv_store_ent(dbsub, name, dbval, 0)) {
-            warn("Failed to update $DB::sub for subroutine %s",
-                 SvPV_nolen(name));
-            SvREFCNT_dec(dbval);
-        }
-    }
-
-    /* GV_ADDMULTI rather than GV_ADD because otherwise you get 'used only
-     * once' warnings in some situations... i can't reproduce this, but CMOP
-     * triggers it */
-    glob = gv_fetchsv(name, GV_ADDMULTI, vartype_to_svtype(variable.type));
-
-    if (initial) {
-        SV *val;
-
-        if (SvROK(initial)) {
-            val = SvRV(initial);
-            SvREFCNT_inc_simple_void_NN(val);
-        }
-        else {
-            val = newSVsv(initial);
-        }
-
-        switch (variable.type) {
-        case VAR_SCALAR:
-            GvSetSV(glob, val);
-            break;
-        case VAR_ARRAY:
-            GvSetAV(glob, val);
-            break;
-        case VAR_HASH:
-            GvSetHV(glob, val);
-            break;
-        case VAR_CODE:
-            GvSetCV(glob, val);
-            break;
-        case VAR_IO:
-            GvSetIO(glob, val);
-            break;
-        }
-    }
-
-    SvREFCNT_dec(name);
-
-void
-remove_glob(self, name)
-    SV *self
-    SV *name
-  CODE:
-    hv_delete_ent(_get_namespace(self), name, G_DISCARD, 0);
-
-int
-has_symbol(self, variable)
-    SV *self
-    varspec_t variable
-  PREINIT:
-    HV *namespace;
-    HE *entry;
-    SV *val;
-  CODE:
-    namespace = _get_namespace(self);
-    entry = hv_fetch_ent(namespace, variable.name, 0, 0);
-    if (!entry)
-        XSRETURN_UNDEF;
-
-    val = HeVAL(entry);
-    if (isGV(val)) {
-        GV *glob = (GV*)val;
-        switch (variable.type) {
-        case VAR_SCALAR:
-            RETVAL = GvSVOK(glob) ? 1 : 0;
-            break;
-        case VAR_ARRAY:
-            RETVAL = GvAVOK(glob) ? 1 : 0;
-            break;
-        case VAR_HASH:
-            RETVAL = GvHVOK(glob) ? 1 : 0;
-            break;
-        case VAR_CODE:
-            RETVAL = GvCVOK(glob) ? 1 : 0;
-            break;
-        case VAR_IO:
-            RETVAL = GvIOOK(glob) ? 1 : 0;
-            break;
-        }
-    }
-    else {
-        RETVAL = (variable.type == VAR_CODE);
-    }
-  OUTPUT:
-    RETVAL
-
-SV*
-get_symbol(self, variable)
-    SV *self
-    varspec_t variable
-  PREINIT:
-    SV *val;
-  CODE:
-    val = _get_symbol(self, &variable, 0);
-    if (!val)
-        XSRETURN_UNDEF;
-    RETVAL = newRV_inc(val);
-  OUTPUT:
-    RETVAL
-
-SV*
-get_or_add_symbol(self, variable)
-    SV *self
-    varspec_t variable
-  PREINIT:
-    SV *val;
-  CODE:
-    val = _get_symbol(self, &variable, 1);
-    if (!val)
-        XSRETURN_UNDEF;
-    RETVAL = newRV_inc(val);
-  OUTPUT:
-    RETVAL
-
-void
-remove_symbol(self, variable)
-    SV *self
-    varspec_t variable
-  PREINIT:
-    HV *namespace;
-    HE *entry;
-    SV *val;
-  CODE:
-    namespace = _get_namespace(self);
-    entry = hv_fetch_ent(namespace, variable.name, 0, 0);
-    if (!entry)
-        XSRETURN_EMPTY;
-
-    val = HeVAL(entry);
-    if (isGV(val)) {
-        GV *glob = (GV*)val;
-        switch (variable.type) {
-        case VAR_SCALAR:
-            GvSetSV(glob, NULL);
-            break;
-        case VAR_ARRAY:
-            GvSetAV(glob, NULL);
-            break;
-        case VAR_HASH:
-            GvSetHV(glob, NULL);
-            break;
-        case VAR_CODE:
-            GvSetCV(glob, NULL);
-            break;
-        case VAR_IO:
-            GvSetIO(glob, NULL);
-            break;
-        }
-    }
-    else {
-        if (variable.type == VAR_CODE) {
-            hv_delete_ent(namespace, variable.name, G_DISCARD, 0);
-        }
-    }
-
-void
-list_all_symbols(self, vartype=VAR_NONE)
-    SV *self
-    vartype_t vartype
-  PPCODE:
-    if (vartype == VAR_NONE) {
-        HV *namespace;
-        HE *entry;
-        int keys;
-
-        namespace = _get_namespace(self);
-        keys = hv_iterinit(namespace);
-        EXTEND(SP, keys);
-        while ((entry = hv_iternext(namespace))) {
-            mPUSHs(newSVhe(entry));
-        }
-    }
-    else {
-        HV *namespace;
-        SV *val;
-        char *key;
-        I32 len;
-
-        namespace = _get_namespace(self);
-        hv_iterinit(namespace);
-        while ((val = hv_iternextsv(namespace, &key, &len))) {
-            GV *gv = (GV*)val;
-            if (isGV(gv)) {
-                switch (vartype) {
-                case VAR_SCALAR:
-                    if (GvSVOK(val))
-                        mXPUSHp(key, len);
-                    break;
-                case VAR_ARRAY:
-                    if (GvAVOK(val))
-                        mXPUSHp(key, len);
-                    break;
-                case VAR_HASH:
-                    if (GvHVOK(val))
-                        mXPUSHp(key, len);
-                    break;
-                case VAR_CODE:
-                    if (GvCVOK(val))
-                        mXPUSHp(key, len);
-                    break;
-                case VAR_IO:
-                    if (GvIOOK(val))
-                        mXPUSHp(key, len);
-                    break;
-                }
-            }
-            else if (vartype == VAR_CODE) {
-                mXPUSHp(key, len);
-            }
-        }
-    }
-
-void
-get_all_symbols(self, vartype=VAR_NONE)
-    SV *self
-    vartype_t vartype
-  PREINIT:
-    HV *namespace, *ret;
-    SV *val;
-    char *key;
-    I32 len;
-  PPCODE:
-    namespace = _get_namespace(self);
-    ret = newHV();
-
-    hv_iterinit(namespace);
-    while ((val = hv_iternextsv(namespace, &key, &len))) {
-        GV *gv = (GV*)val;
-
-        if (!isGV(gv)) {
-            SV *keysv = newSVpvn(key, len);
-            _expand_glob(self, keysv);
-            SvREFCNT_dec(keysv);
-        }
-
-        switch (vartype) {
-        case VAR_SCALAR:
-            if (GvSVOK(val))
-                hv_store(ret, key, len, newRV_inc(GvSV(gv)), 0);
-            break;
-        case VAR_ARRAY:
-            if (GvAVOK(val))
-                hv_store(ret, key, len, newRV_inc((SV*)GvAV(gv)), 0);
-            break;
-        case VAR_HASH:
-            if (GvHVOK(val))
-                hv_store(ret, key, len, newRV_inc((SV*)GvHV(gv)), 0);
-            break;
-        case VAR_CODE:
-            if (GvCVOK(val))
-                hv_store(ret, key, len, newRV_inc((SV*)GvCV(gv)), 0);
-            break;
-        case VAR_IO:
-            if (GvIOOK(val))
-                hv_store(ret, key, len, newRV_inc((SV*)GvIO(gv)), 0);
-            break;
-        case VAR_NONE:
-            hv_store(ret, key, len, SvREFCNT_inc_simple_NN(val), 0);
-            break;
-        }
-    }
-
-    mPUSHs(newRV_noinc((SV*)ret));
-
-BOOT:
-    {
-        name_key = newSVpvs("name");
-        PERL_HASH(name_hash, "name", 4);
-
-        namespace_key = newSVpvs("namespace");
-        PERL_HASH(namespace_hash, "namespace", 9);
-
-        type_key = newSVpvs("type");
-        PERL_HASH(type_hash, "type", 4);
-    }