X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=Name.xs;h=239e082bbcd89b55cf2123dc1454414e55beeb4b;hb=0266da0fb8d6bbb2d02cd88c6d25bbbb1e9dd519;hp=9b38b050a14662c2e67a18223b15764e2fdca70a;hpb=65b620ddc50aeaecea9945eeeaf971909cf6e963;p=p5sagit%2FSub-Name.git

diff --git a/Name.xs b/Name.xs
index 9b38b05..239e082 100644
--- a/Name.xs
+++ b/Name.xs
@@ -1,4 +1,5 @@
 /* Copyright (C) 2004, 2008  Matthijs van Duin.  All rights reserved.
+ * Copyright (C) 2014, cPanel Inc.  All rights reserved.
  * This program is free software; you can redistribute it and/or modify
  * it under the same terms as Perl itself.
  */
@@ -17,6 +18,9 @@ static MGVTBL subname_vtbl;
 #define SvMAGIC_set(sv, val) (SvMAGIC(sv) = (val))
 #endif
 
+#ifndef Newxz
+#define Newxz(ptr, num, type)	Newz(0, ptr, num, type)
+#endif
 
 MODULE = Sub::Name  PACKAGE = Sub::Name
 
@@ -30,7 +34,8 @@ subname(name, sub)
 	CV *cv = NULL;
 	GV *gv;
 	HV *stash = CopSTASH(PL_curcop);
-	char *s, *end = NULL, saved;
+	char *s, *end = NULL;
+	MAGIC *mg;
     PPCODE:
 	if (!SvROK(sub) && SvGMAGICAL(sub))
 		mg_get(sub);
@@ -56,37 +61,69 @@ subname(name, sub)
 			end = s;
 	}
 	s--;
-	if (end) {
-		saved = *end;
-		*end = 0;
-		stash = GvHV(gv_fetchpv(name, TRUE, SVt_PVHV));
-		*end = saved;
-		name = end;
+        if (end) {
+		char *namepv = savepvn(name, end - name);
+		stash = GvHV(gv_fetchpv(namepv, TRUE, SVt_PVHV));
+		Safefree(namepv);
+                name = end;
+        }
+
+	/* under debugger, provide information about sub location */
+	if (PL_DBsub && CvGV(cv)) {
+		HV *hv = GvHV(PL_DBsub);
+		SV** old_data;
+
+		char* new_pkg = HvNAME(stash);
+
+		char* old_name = GvNAME( CvGV(cv) );
+		char* old_pkg = HvNAME( GvSTASH(CvGV(cv)) );
+
+		int old_len = strlen(old_name) + strlen(old_pkg);
+		int new_len = strlen(name) + strlen(new_pkg);
+
+		char* full_name;
+		Newxz(full_name, (old_len > new_len ? old_len : new_len) + 3, char);
+
+		strcat(full_name, old_pkg);
+		strcat(full_name, "::");
+		strcat(full_name, old_name);
+
+		old_data = hv_fetch(hv, full_name, strlen(full_name), 0);
+
+		if (old_data) {
+			strcpy(full_name, new_pkg);
+			strcat(full_name, "::");
+			strcat(full_name, name);
+
+			SvREFCNT_inc(*old_data);
+			if (!hv_store(hv, full_name, strlen(full_name), *old_data, 0))
+				SvREFCNT_dec(*old_data);
+		}
+		Safefree(full_name);
 	}
+
 	gv = (GV *) newSV(0);
 	gv_init(gv, stash, name, s - name, TRUE);
-#ifndef USE_5005THREADS
-	if (CvPADLIST(cv)) {
-		/* cheap way to refcount the gv */
-		av_store((AV *) AvARRAY(CvPADLIST(cv))[0], 0, (SV *) gv);
-	} else
-#endif
-	{
-		/* expensive way to refcount the gv */
-		MAGIC *mg = SvMAGIC(cv);
-		while (mg && mg->mg_virtual != &subname_vtbl)
-			mg = mg->mg_moremagic;
-		if (!mg) {
-			Newz(702, mg, 1, MAGIC);
-			mg->mg_moremagic = SvMAGIC(cv);
-			mg->mg_type = PERL_MAGIC_ext;
-			mg->mg_virtual = &subname_vtbl;
-			SvMAGIC_set(cv, mg);
-		}
-		if (mg->mg_flags & MGf_REFCOUNTED)
-			SvREFCNT_dec(mg->mg_obj);
-		mg->mg_flags |= MGf_REFCOUNTED;
-		mg->mg_obj = (SV *) gv;
+
+	mg = SvMAGIC(cv);
+	while (mg && mg->mg_virtual != &subname_vtbl)
+		mg = mg->mg_moremagic;
+	if (!mg) {
+		Newxz(mg, 1, MAGIC);
+		mg->mg_moremagic = SvMAGIC(cv);
+		mg->mg_type = PERL_MAGIC_ext;
+		mg->mg_virtual = &subname_vtbl;
+		SvMAGIC_set(cv, mg);
 	}
+	if (mg->mg_flags & MGf_REFCOUNTED)
+		SvREFCNT_dec(mg->mg_obj);
+	mg->mg_flags |= MGf_REFCOUNTED;
+	mg->mg_obj = (SV *) gv;
+	SvRMAGICAL_on(cv);
+	CvANON_off(cv);
+#ifndef CvGV_set
 	CvGV(cv) = gv;
+#else
+	CvGV_set(cv, gv);
+#endif
 	PUSHs(sub);