Fix RT #54203 (reported by chocolateboy) that setters might return undef.

[gitmo/Mouse.git] / xs-src / Mouse.xs

diff --git a/xs-src/Mouse.xs b/xs-src/Mouse.xs
index 8e7700f..0a7d3f9 100644 (file)
--- a/xs-src/Mouse.xs
+++ b/xs-src/Mouse.xs
@@ -249,8 +249,9 @@ mouse_class_initialize_object(pTHX_ SV* const meta, SV* const object, HV* const
     assert(args);
     assert(SvTYPE(args) == SVt_PVHV);
 
-    ENTER;
-    SAVETMPS;
+    if(mg_find((SV*)args, PERL_MAGIC_tied)){
+        croak("You cannot use tied HASH reference as initializing arguments");
+    }
 
     if(!ignore_triggers){
         triggers_queue = newAV_mortal();
@@ -270,7 +271,7 @@ mouse_class_initialize_object(pTHX_ SV* const meta, SV* const object, HV* const
             if(flags & MOUSEf_ATTR_HAS_TC){
                 value = mouse_xa_apply_type_constraint(aTHX_ xa, value, flags);
             }
-            set_slot(object, slot, value);
+            value = set_slot(object, slot, value);
             if(SvROK(value) && flags & MOUSEf_ATTR_IS_WEAK_REF){
                 weaken_slot(object, slot);
             }
@@ -306,11 +307,9 @@ mouse_class_initialize_object(pTHX_ SV* const meta, SV* const object, HV* const
     }
 
     if(MOUSE_xc_flags(xc) & MOUSEf_XC_IS_ANON){
-        set_slot(object, newSVpvs_flags("__METACLASS__", SVs_TEMP), meta);
+        (void)set_slot(object, newSVpvs_flags("__METACLASS__", SVs_TEMP), meta);
     }
 
-    FREETMPS;
-    LEAVE;
 }
 
 static SV*
@@ -349,7 +348,12 @@ mouse_buildall(pTHX_ AV* const xc, SV* const object, SV* const args) {
         PUSHs(args);
         PUTBACK;
 
-        call_sv(AvARRAY(buildall)[i], G_VOID | G_DISCARD);
+        call_sv(AvARRAY(buildall)[i], G_VOID);
+
+        /* discard a scalar which G_VOID returns */
+        SPAGAIN;
+        (void)POPs;
+        PUTBACK;
     }
 }
 
@@ -435,7 +439,7 @@ CODE:
     }
     sv_setsv_mg((SV*)gv, code_ref); /* *gv = $code_ref */
 
-    set_slot(methods, name, code); /* $self->{methods}{$name} = $code */
+    (void)set_slot(methods, name, code); /* $self->{methods}{$name} = $code */
 
     /* name the CODE ref if it's anonymous */
     {
@@ -454,6 +458,7 @@ MODULE = Mouse  PACKAGE = Mouse::Meta::Class
 BOOT:
     INSTALL_SIMPLE_READER(Class, roles);
     INSTALL_SIMPLE_PREDICATE_WITH_KEY(Class, is_anon_class, anon_serial_id);
+    INSTALL_SIMPLE_READER(Class, is_immutable);
 
     INSTALL_CLASS_HOLDER(Class, method_metaclass,     "Mouse::Meta::Method");
     INSTALL_CLASS_HOLDER(Class, attribute_metaclass,  "Mouse::Meta::Attribute");
@@ -585,10 +590,9 @@ CODE:
     AV* demolishall;
     I32 len, i;
 
-    PERL_UNUSED_VAR(ix);
-
     if(!IsObject(object)){
-        croak("You must not call DESTROY as a class method");
+        croak("You must not call %s as a class method",
+            ix == 0 ? "DESTROY" : "DEMOLISHALL");
     }
 
     if(SvOK(meta)){
@@ -627,8 +631,14 @@ CODE:
             XPUSHs(object);
             PUTBACK;
 
-            call_sv(AvARRAY(demolishall)[i], G_VOID | G_DISCARD | G_EVAL);
-            if(SvTRUE(ERRSV)){
+            call_sv(AvARRAY(demolishall)[i], G_VOID | G_EVAL);
+
+            /* discard a scalar which G_VOID returns */
+            SPAGAIN;
+            (void)POPs;
+            PUTBACK;
+
+            if(sv_true(ERRSV)){
                 SV* const e = newSVsv(ERRSV);
 
                 FREETMPS;
@@ -656,13 +666,11 @@ void
 BUILDALL(SV* self, SV* args)
 CODE:
 {
-    AV* const xc = mouse_get_xc(aTHX_ self);
+    SV* const meta = get_metaclass(self);
+    AV* const xc   = mouse_get_xc(aTHX_ meta);
 
     if(!IsHashRef(args)){
         croak("You must pass a HASH reference to BUILDALL");
     }
-    if(mg_find(SvRV(args), PERL_MAGIC_tied)){
-        croak("You cannot use tie HASH reference as args");
-    }
     mouse_buildall(aTHX_ xc, self, args);
 }