X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=xs-src%2FMouseTypeConstraints.xs;h=8ff2975298645f095131d951fcd68108aeb2e626;hb=31aa6299ca20515174f1b145e5b3d4dbd9e09a08;hp=bf07619554680a388e3dad81a7ff784261fb0dea;hpb=4bb92469f92834968fc1162ef086f040fa182713;p=gitmo%2FMouse.git

diff --git a/xs-src/MouseTypeConstraints.xs b/xs-src/MouseTypeConstraints.xs
index bf07619..8ff2975 100644
--- a/xs-src/MouseTypeConstraints.xs
+++ b/xs-src/MouseTypeConstraints.xs
@@ -1,21 +1,28 @@
 /*
- *   full definition of built-in type constraints (ware in Moose::Util::TypeConstraints::OptimizedConstraints)
+ * TypeConstraint stuff
+ *  - Mouse::Util::TypeConstraints (including OptimizedConstraionts)
+ *  - Mouse::Meta::TypeConstraint
  */
 
 #include "mouse.h"
 
-#if PERL_BCDVERSION >= 0x5008005
-#define LooksLikeNumber(sv) looks_like_number(sv)
-#else
-#define LooksLikeNumber(sv) ( SvPOKp(sv) ? looks_like_number(sv) : (I32)SvNIOKp(sv) )
-#endif
-
 #ifndef SvRXOK
 #define SvRXOK(sv) (SvROK(sv) && SvMAGICAL(SvRV(sv)) && mg_find(SvRV(sv), PERL_MAGIC_qr))
 #endif
 
+#define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION
+typedef struct sui_cxt{
+    GV* universal_isa;
+    GV* universal_can;
+    AV* tc_extra_args;
+} my_cxt_t;
+START_MY_CXT
+
 typedef int (*check_fptr_t)(pTHX_ SV* const data, SV* const sv);
 
+static
+XSPROTO(XS_Mouse_constraint_check);
+
 /*
     NOTE: mouse_tc_check() handles GETMAGIC
 */
@@ -37,12 +44,21 @@ mouse_tc_check(pTHX_ SV* const tc_code, SV* const sv) {
     else { /* custom */
         int ok;
         dSP;
+        dMY_CXT;
 
         ENTER;
         SAVETMPS;
 
         PUSHMARK(SP);
         XPUSHs(sv);
+        if( MY_CXT.tc_extra_args ) {
+            AV* const av  = MY_CXT.tc_extra_args;
+            I32 const len = AvFILLp(av) + 1;
+            int i;
+            for(i = 0; i < len; i++) {
+                XPUSHs( AvARRAY(av)[i] );
+            }
+        }
         PUTBACK;
 
         call_sv(tc_code, G_SCALAR);
@@ -59,8 +75,10 @@ mouse_tc_check(pTHX_ SV* const tc_code, SV* const sv) {
 }
 
 /*
-    The following type check functions return an integer, not a bool, to keep them simple,
-    so if you assign these return value to bool variable, you must use "expr ? TRUE : FALSE".
+    The following type check functions return an integer, not a bool, to keep
+    the code simple,
+    so if you assign these return value to a bool variable, you must use
+    "expr ? TRUE : FALSE".
 */
 
 int
@@ -74,21 +92,21 @@ mouse_tc_Bool(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
     assert(sv);
 
     if(sv_true(sv)){
-        if(SvIOKp(sv)){
+        if(SvPOKp(sv)){ /* "1" */
+            return SvCUR(sv) == 1 && SvPVX(sv)[0] == '1';
+        }
+        else if(SvIOKp(sv)){
             return SvIVX(sv) == 1;
         }
         else if(SvNOKp(sv)){
             return SvNVX(sv) == 1.0;
         }
-        else if(SvPOKp(sv)){ /* "1" */
-            return SvCUR(sv) == 1 && SvPVX(sv)[0] == '1';
-        }
         else{
             return FALSE;
         }
     }
     else{
-        /* any false value must be boolean */
+        /* any false value is a boolean */
         return TRUE;
     }
 }
@@ -124,8 +142,8 @@ S_nv_is_integer(pTHX_ NV const nv) {
     }
     else {
         char buf[64];  /* Must fit sprintf/Gconvert of longest NV */
-        char* p;
-        Gconvert(nv, NV_DIG, 0, buf);
+        const char* p;
+        (void)Gconvert(nv, NV_DIG, 0, buf);
         p = &buf[0];
 
         /* -?[0-9]+ */
@@ -144,18 +162,16 @@ S_nv_is_integer(pTHX_ NV const nv) {
 int
 mouse_tc_Int(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
     assert(sv);
-    if(SvIOKp(sv)){
+    if(SvPOKp(sv)){
+        int const num_type = grok_number(SvPVX(sv), SvCUR(sv), NULL);
+        return num_type && !(num_type & IS_NUMBER_NOT_INT);
+    }
+    else if(SvIOKp(sv)){
         return TRUE;
     }
     else if(SvNOKp(sv)) {
         return S_nv_is_integer(aTHX_ SvNVX(sv));
     }
-    else if(SvPOKp(sv)){
-        int const num_type = grok_number(SvPVX(sv), SvCUR(sv), NULL);
-        if(num_type){
-            return !(num_type & IS_NUMBER_NOT_INT);
-        }
-    }
     return FALSE;
 }
 
@@ -166,7 +182,7 @@ mouse_tc_Str(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
 }
 
 int
-mouse_tc_ClassName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv){ 
+mouse_tc_ClassName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv){
     assert(sv);
     return is_class_loaded(sv);
 }
@@ -180,7 +196,7 @@ mouse_tc_RoleName(pTHX_ SV* const data PERL_UNUSED_DECL, SV* const sv) {
         ENTER;
         SAVETMPS;
 
-        ok =  is_an_instance_of("Mouse::Meta::Role", get_metaclass(sv));
+        ok = is_an_instance_of("Mouse::Meta::Role", get_metaclass(sv));
 
         FREETMPS;
         LEAVE;
@@ -282,7 +298,7 @@ mouse_parameterized_ArrayRef(pTHX_ SV* const param, SV* const sv) {
 
 static int
 mouse_parameterized_HashRef(pTHX_ SV* const param, SV* const sv) {
-    if(mouse_tc_HashRef(aTHX_ NULL, sv)){
+    if(IsHashRef(sv)){
         HV* const hv  = (HV*)SvRV(sv);
         HE* he;
 
@@ -346,12 +362,6 @@ mouse_types_check(pTHX_ AV* const types, SV* const sv) {
  *  This class_type generator is taken from Scalar::Util::Instance
  */
 
-#define MY_CXT_KEY "Mouse::Util::TypeConstraints::_guts" XS_VERSION
-typedef struct sui_cxt{
-    GV* universal_isa;
-    GV* universal_can;
-} my_cxt_t;
-START_MY_CXT
 
 #define MG_klass_stash(mg) ((HV*)(mg)->mg_obj)
 #define MG_klass_pv(mg)    ((mg)->mg_ptr)
@@ -392,7 +402,7 @@ mouse_lookup_isa(pTHX_ HV* const instance_stash, const char* const klass_pv){
 #define find_method_pvn(a, b, c) mouse_stash_find_method(aTHX_ a, b, c)
 #define find_method_pvs(a, b)    mouse_stash_find_method(aTHX_ a, STR_WITH_LEN(b))
 
-static inline GV*
+STATIC_INLINE GV*
 mouse_stash_find_method(pTHX_ HV* const stash, const char* const name, I32 const namelen){
     GV** const gvp = (GV**)hv_fetch(stash, name, namelen, FALSE);
     if(gvp && isGV(*gvp) && GvCV(*gvp)){ /* shortcut */
@@ -548,21 +558,31 @@ mouse_generate_can_predicate_for(pTHX_ SV* const methods, const char* const pred
     return mouse_tc_generate(aTHX_ predicate_name, (check_fptr_t)mouse_can_methods, (SV*)param);
 }
 
-
-XS(XS_Mouse_constraint_check) {
+static
+XSPROTO(XS_Mouse_constraint_check) {
     dVAR;
     dXSARGS;
     MAGIC* const mg = (MAGIC*)XSANY.any_ptr;
+    SV* sv;
 
     if(items < 1){
         croak("Too few arguments for type constraint check functions");
     }
 
-    SvGETMAGIC( ST(0) );
-    ST(0) = boolSV( CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, ST(0)) );
+    sv = ST(0);
+    SvGETMAGIC(sv);
+    ST(0) = boolSV( CALL_FPTR((check_fptr_t)mg->mg_ptr)(aTHX_ mg->mg_obj, sv) );
     XSRETURN(1);
 }
 
+static
+XSPROTO(XS_Mouse_TypeConstraint_fallback) {
+    dXSARGS;
+    PERL_UNUSED_VAR(cv);
+    PERL_UNUSED_VAR(items);
+    XSRETURN_EMPTY;
+}
+
 static void
 setup_my_cxt(pTHX_ pMY_CXT){
     MY_CXT.universal_isa = gv_fetchpvs("UNIVERSAL::isa", GV_ADD, SVt_PVCV);
@@ -570,10 +590,14 @@ setup_my_cxt(pTHX_ pMY_CXT){
 
     MY_CXT.universal_can = gv_fetchpvs("UNIVERSAL::can", GV_ADD, SVt_PVCV);
     SvREFCNT_inc_simple_void_NN(MY_CXT.universal_can);
+
+    MY_CXT.tc_extra_args = NULL;
 }
 
 #define DEFINE_TC(name) mouse_tc_generate(aTHX_ "Mouse::Util::TypeConstraints::" STRINGIFY(name), CAT2(mouse_tc_, name), NULL)
 
+#define MTC_CLASS "Mouse::Meta::TypeConstraint"
+
 MODULE = Mouse::Util::TypeConstraints    PACKAGE = Mouse::Util::TypeConstraints
 
 PROTOTYPES:   DISABLE
@@ -662,11 +686,60 @@ BOOT:
     INSTALL_SIMPLE_READER(TypeConstraint, type_parameter);
 
     INSTALL_SIMPLE_READER_WITH_KEY(TypeConstraint, _compiled_type_constraint, compiled_type_constraint);
-    INSTALL_SIMPLE_READER(TypeConstraint, _compiled_type_coercion); /* Mouse specific */
 
     INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, has_coercion, _compiled_type_coercion);
     INSTALL_SIMPLE_PREDICATE_WITH_KEY(TypeConstraint, __is_parameterized, type_parameter); /* Mouse specific */
 
+    /* overload stuff */
+    PL_amagic_generation++;
+    (void)newXS( MTC_CLASS "::()",
+        XS_Mouse_TypeConstraint_fallback, file);
+
+    /* fallback => 1 */
+    sv_setsv(
+        get_sv( MTC_CLASS "::()", GV_ADD ),
+        &PL_sv_yes
+    );
+
+    /* '""' => '_as_string' */
+    {
+        SV* const code_ref = sv_2mortal(newRV_inc(
+            (SV*)get_cv( MTC_CLASS "::_as_string", GV_ADD )));
+        sv_setsv_mg(
+            (SV*)gv_fetchpvs( MTC_CLASS "::(\"\"", GV_ADDMULTI, SVt_PVCV ),
+            code_ref );
+    }
+
+    /* '0+' => '_identity' */
+    {
+        SV* const code_ref = sv_2mortal(newRV_inc(
+            (SV*)get_cv( MTC_CLASS "::_identity", GV_ADD )));
+        sv_setsv_mg(
+            (SV*)gv_fetchpvs( MTC_CLASS "::(0+", GV_ADDMULTI, SVt_PVCV ),
+            code_ref );
+    }
+
+    /* '|' => '_unite' */
+    {
+        SV* const code_ref = sv_2mortal(newRV_inc(
+            (SV*)get_cv( MTC_CLASS "::_unite", GV_ADD )));
+        sv_setsv_mg(
+            (SV*)gv_fetchpvs( MTC_CLASS "::(|", GV_ADDMULTI, SVt_PVCV ),
+            code_ref );
+    }
+
+UV
+_identity(SV* self, ...)
+CODE:
+{
+    if(!SvROK(self)) {
+        croak("Invalid object instance: '%"SVf"'", self);
+    }
+    RETVAL = PTR2UV(SvRV(self));
+}
+OUTPUT:
+    RETVAL
+
 void
 compile_type_constraint(SV* self)
 CODE:
@@ -679,7 +752,7 @@ CODE:
     for(parent = get_slots(self, "parent"); parent; parent = get_slots(parent, "parent")){
         check = get_slots(parent, "hand_optimized_type_constraint");
         if(check && SvOK(check)){
-            if(!mouse_tc_CodeRef(aTHX_ NULL, check)){
+            if(!IsCodeRef(check)){
                 croak("Not a CODE reference");
             }
             av_unshift(checks, 1);
@@ -744,12 +817,24 @@ CODE:
 }
 
 bool
-check(SV* self, SV* sv)
+check(SV* self, SV* sv, ...)
 CODE:
 {
     SV* const check = get_slots(self, "compiled_type_constraint");
-    if(!(check && mouse_tc_CodeRef(aTHX_ NULL, check))){
-        mouse_throw_error(self, check, "'%"SVf"' has no compiled type constraint", self);
+    if(!(check && IsCodeRef(check))){
+        mouse_throw_error(self, check,
+            "'%"SVf"' has no compiled type constraint", self);
+    }
+    if( items > 2 ) {
+        int i;
+        AV* av;
+        dMY_CXT;
+        SAVESPTR(MY_CXT.tc_extra_args);
+        av = MY_CXT.tc_extra_args = newAV_mortal();
+        av_extend(av, items - 3);
+        for(i = 2; i < items; i++) {
+            av_push(av, SvREFCNT_inc_NN( ST(i) ) );
+        }
     }
     RETVAL = mouse_tc_check(aTHX_ check, sv) ? TRUE : FALSE;
 }