Bodge to make Tk work - like the UTF8 flag, the READONLY flag has too

[perl5.git] / scope.h

diff --git a/scope.h b/scope.h
index bbb5562..f86039d 100644 (file)
--- a/scope.h
+++ b/scope.h
@@ -48,6 +48,7 @@
 #define SAVEt_SHARED_PVREF     37
 #define SAVEt_BOOL             38
 #define SAVEt_SET_SVFLAGS      39
+#define SAVEt_SAVESWITCHSTACK  40
 
 #ifndef SCOPE_SAVES_SIGNAL_MASK
 #define SCOPE_SAVES_SIGNAL_MASK 0
@@ -169,6 +170,16 @@ Closing bracket on a callback.  See C<ENTER> and L<perlcall>.
        SSPUSHINT(SAVEt_COMPPAD);                               \
     } STMT_END
 
+#define SAVESWITCHSTACK(f,t) \
+    STMT_START {                                       \
+       SSCHECK(3);                                     \
+       SSPUSHPTR((SV*)(f));                            \
+       SSPUSHPTR((SV*)(t));                            \
+       SSPUSHINT(SAVEt_SAVESWITCHSTACK);               \
+       SWITCHSTACK((f),(t));                           \
+       PL_curstackinfo->si_stack = (t);                \
+    } STMT_END
+
 #ifdef USE_ITHREADS
 #  define SAVECOPSTASH(c)      SAVEPPTR(CopSTASHPV(c))
 #  define SAVECOPSTASH_FREE(c) SAVESHAREDPV(CopSTASHPV(c))