PERL_CONTEXT has been chaned in 5.12

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

diff --git a/xs-src/MouseUtil.xs b/xs-src/MouseUtil.xs
index 3c02d18..c0e1d80 100644 (file)
--- a/xs-src/MouseUtil.xs
+++ b/xs-src/MouseUtil.xs
@@ -120,6 +120,48 @@ mouse_throw_error(SV* const metaobject, SV* const data /* not used */, const cha
     }
 }
 
+static I32
+S_dopoptosub(pTHX_ I32 const startingblock)
+{
+    const PERL_CONTEXT* const cxstk = cxstack;
+    I32 i;
+    for (i = startingblock; i >= 0; i--) {
+        const PERL_CONTEXT* const cx = &cxstk[i];
+
+        switch (CxTYPE(cx)) {
+        case CXt_EVAL:
+        case CXt_SUB:
+        case CXt_FORMAT:
+            return i;
+        }
+    }
+    return i;
+}
+
+/* workaround RT #69939 */
+I32
+mouse_call_sv_safe(pTHX_ SV* const sv, I32 const flags) {
+    const PERL_CONTEXT* const cx = &cxstack[S_dopoptosub(aTHX_ cxstack_ix)];
+    assert( (flags & G_EVAL) == 0 );
+
+    //warn("cx_type=0x%02x PL_eval=0x%02x (%"SVf")", (unsigned)cx->cx_type, (unsigned)PL_in_eval, sv);
+    if(!(cx->cx_type & CXp_TRYBLOCK)) {
+        I32 count;
+        //SAVESPTR(ERRSV);
+        //ERRSV = sv_newmortal();
+
+        count = Perl_call_sv(aTHX_ sv, flags | G_EVAL);
+
+        if(sv_true(ERRSV)){
+            croak(NULL); /* rethrow */
+        }
+        return count;
+    }
+    else {
+        return Perl_call_sv(aTHX_ sv, flags);
+    }
+}
+
 void
 mouse_must_defined(pTHX_ SV* const value, const char* const name) {
     assert(value);
@@ -199,7 +241,7 @@ mouse_call0 (pTHX_ SV* const self, SV* const method) {
     XPUSHs(self);
     PUTBACK;
 
-    call_sv(method, G_SCALAR | G_METHOD);
+    call_sv_safe(method, G_SCALAR | G_METHOD);
 
     SPAGAIN;
     ret = POPs;
@@ -219,7 +261,7 @@ mouse_call1 (pTHX_ SV* const self, SV* const method, SV* const arg1) {
     PUSHs(arg1);
     PUTBACK;
 
-    call_sv(method, G_SCALAR | G_METHOD);
+    call_sv_safe(method, G_SCALAR | G_METHOD);
 
     SPAGAIN;
     ret = POPs;
@@ -350,7 +392,9 @@ CODE:
     }
     {
         dMY_CXT;
-        if(MY_CXT.metas) croak("Cannot set metaclass storage more than once");
+        if(MY_CXT.metas && ckWARN(WARN_REDEFINE)){
+            Perl_warner(aTHX_ packWARN(WARN_REDEFINE), "Metaclass storage more than once");
+        }
         MY_CXT.metas = metas;
         SvREFCNT_inc_simple_void_NN(metas);
     }