do subname() is deprecated, so update this hunk of test dating from perl 1.

[p5sagit/p5-mst-13.2.git] / util.c

diff --git a/util.c b/util.c
index 2018540..b72f263 100644 (file)
--- a/util.c
+++ b/util.c
@@ -1529,6 +1529,19 @@ Perl_warner_nocontext(U32 err, const char *pat, ...)
 #endif /* PERL_IMPLICIT_CONTEXT */
 
 void
+Perl_ck_warner_d(pTHX_ U32 err, const char* pat, ...)
+{
+    PERL_ARGS_ASSERT_CK_WARNER_D;
+
+    if (Perl_ckwarn_d(aTHX_ err)) {
+       va_list args;
+       va_start(args, pat);
+       vwarner(err, pat, &args);
+       va_end(args);
+    }
+}
+
+void
 Perl_ck_warner(pTHX_ U32 err, const char* pat, ...)
 {
     PERL_ARGS_ASSERT_CK_WARNER;
@@ -1585,20 +1598,11 @@ bool
 Perl_ckwarn(pTHX_ U32 w)
 {
     dVAR;
-    return isLEXWARN_on
-       ? (PL_curcop->cop_warnings != pWARN_NONE
-          && (
-                  PL_curcop->cop_warnings == pWARN_ALL
-               || isWARN_on(PL_curcop->cop_warnings, unpackWARN1(w))
-               || (unpackWARN2(w) &&
-                    isWARN_on(PL_curcop->cop_warnings, unpackWARN2(w)))
-               || (unpackWARN3(w) &&
-                    isWARN_on(PL_curcop->cop_warnings, unpackWARN3(w)))
-               || (unpackWARN4(w) &&
-                    isWARN_on(PL_curcop->cop_warnings, unpackWARN4(w)))
-               )
-          )
-       : (PL_dowarn & G_WARN_ON);
+    /* If lexical warnings have not been set, use $^W.  */
+    if (isLEXWARN_off)
+       return PL_dowarn & G_WARN_ON;
+
+    return ckwarn_common(w);
 }
 
 /* implements the ckWARN?_d macro */
@@ -1607,22 +1611,42 @@ bool
 Perl_ckwarn_d(pTHX_ U32 w)
 {
     dVAR;
-    return
-          isLEXWARN_off
-       || PL_curcop->cop_warnings == pWARN_ALL
-       || (
-             PL_curcop->cop_warnings != pWARN_NONE 
-          && (
-                  isWARN_on(PL_curcop->cop_warnings, unpackWARN1(w))
-             || (unpackWARN2(w) &&
-                  isWARN_on(PL_curcop->cop_warnings, unpackWARN2(w)))
-             || (unpackWARN3(w) &&
-                  isWARN_on(PL_curcop->cop_warnings, unpackWARN3(w)))
-             || (unpackWARN4(w) &&
-                  isWARN_on(PL_curcop->cop_warnings, unpackWARN4(w)))
-             )
-          )
-       ;
+    /* If lexical warnings have not been set then default classes warn.  */
+    if (isLEXWARN_off)
+       return TRUE;
+
+    return ckwarn_common(w);
+}
+
+static bool
+S_ckwarn_common(pTHX_ U32 w)
+{
+    if (PL_curcop->cop_warnings == pWARN_ALL)
+       return TRUE;
+
+    if (PL_curcop->cop_warnings == pWARN_NONE)
+       return FALSE;
+
+    /* Check the assumption that at least the first slot is non-zero.  */
+    assert(unpackWARN1(w));
+
+    /* Check the assumption that it is valid to stop as soon as a zero slot is
+       seen.  */
+    if (!unpackWARN2(w)) {
+       assert(!unpackWARN3(w));
+       assert(!unpackWARN4(w));
+    } else if (!unpackWARN3(w)) {
+       assert(!unpackWARN4(w));
+    }
+       
+    /* Right, dealt with all the special cases, which are implemented as non-
+       pointers, so there is a pointer to a real warnings mask.  */
+    do {
+       if (isWARN_on(PL_curcop->cop_warnings, unpackWARN1(w)))
+           return TRUE;
+    } while (w >>= WARNshift);
+
+    return FALSE;
 }
 
 /* Set buffer=NULL to get a new one.  */