#!/usr/bin/perl
+#
+# Regenerate (overwriting only if changed):
+#
+# lib/warnings.pm
+# warnings.h
+#
+# from information hardcoded into this script (the $tree hash), plus the
+# template for warnings.pm in the DATA section.
+#
+# With an argument of 'tree', just dump the contents of $tree and exits.
+# Also accepts the standard regen_lib -q and -v args.
+#
+# This script is normally invoked from regen.pl.
-$VERSION = '1.02';
+$VERSION = '1.02_02';
BEGIN {
- push @INC, './lib';
+ require 'regen_lib.pl';
+ push @INC, './lib';
}
use strict ;
'misc' => [ 5.008, DEFAULT_OFF],
'regexp' => [ 5.008, DEFAULT_OFF],
'glob' => [ 5.008, DEFAULT_OFF],
- 'y2k' => [ 5.008, DEFAULT_OFF],
'untie' => [ 5.008, DEFAULT_OFF],
'substr' => [ 5.008, DEFAULT_OFF],
'taint' => [ 5.008, DEFAULT_OFF],
'pack' => [ 5.008, DEFAULT_OFF],
'unpack' => [ 5.008, DEFAULT_OFF],
'threads' => [ 5.008, DEFAULT_OFF],
- 'assertions' => [ 5.009, DEFAULT_OFF],
+ 'imprecision' => [ 5.011, DEFAULT_OFF],
#'default' => [ 5.008, DEFAULT_ON ],
}],
exit ;
}
-unlink "warnings.h";
-unlink "lib/warnings.pm";
-open(WARN, ">warnings.h") || die "Can't create warnings.h: $!\n";
-open(PM, ">lib/warnings.pm") || die "Can't create lib/warnings.pm: $!\n";
+my $warn = safer_open("warnings.h-new");
+my $pm = safer_open("lib/warnings.pm-new");
-print WARN <<'EOM' ;
-/* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
+print $warn <<'EOM' ;
+/* -*- buffer-read-only: t -*-
+ !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
This file is built by warnings.pl
Any changes made here will be lost!
*/
#define G_WARN_ONCE 8 /* set if 'once' ever enabled */
#define G_WARN_ALL_MASK (G_WARN_ALL_ON|G_WARN_ALL_OFF)
-#define pWARN_STD Nullsv
-#define pWARN_ALL (Nullsv+1) /* use warnings 'all' */
-#define pWARN_NONE (Nullsv+2) /* no warnings 'all' */
+#define pWARN_STD NULL
+#define pWARN_ALL (((STRLEN*)0)+1) /* use warnings 'all' */
+#define pWARN_NONE (((STRLEN*)0)+2) /* no warnings 'all' */
#define specialWARN(x) ((x) == pWARN_STD || (x) == pWARN_ALL || \
(x) == pWARN_NONE)
+
+/* if PL_warnhook is set to this value, then warnings die */
+#define PERL_WARNHOOK_FATAL (&PL_sv_placeholder)
EOM
my $offset = 0 ;
my $last_ver = 0;
foreach $k (sort { $a <=> $b } keys %ValueToName) {
my ($name, $version) = @{ $ValueToName{$k} };
- print WARN "\n/* Warnings Categories added in Perl $version */\n\n"
+ print $warn "\n/* Warnings Categories added in Perl $version */\n\n"
if $last_ver != $version ;
- print WARN tab(5, "#define WARN_$name"), "$k\n" ;
+ print $warn tab(5, "#define WARN_$name"), "$k\n" ;
$last_ver = $version ;
}
-print WARN "\n" ;
+print $warn "\n" ;
-print WARN tab(5, '#define WARNsize'), "$warn_size\n" ;
+print $warn tab(5, '#define WARNsize'), "$warn_size\n" ;
#print WARN tab(5, '#define WARN_ALLstring'), '"', ('\377' x $warn_size) , "\"\n" ;
-print WARN tab(5, '#define WARN_ALLstring'), '"', ('\125' x $warn_size) , "\"\n" ;
-print WARN tab(5, '#define WARN_NONEstring'), '"', ('\0' x $warn_size) , "\"\n" ;
-my $WARN_TAINTstring = mkOct($warn_size, map $_ * 2, @{ $list{'taint'} });
+print $warn tab(5, '#define WARN_ALLstring'), '"', ('\125' x $warn_size) , "\"\n" ;
+print $warn tab(5, '#define WARN_NONEstring'), '"', ('\0' x $warn_size) , "\"\n" ;
-print WARN tab(5, '#define WARN_TAINTstring'), qq["$WARN_TAINTstring"\n] ;
-
-print WARN <<'EOM';
+print $warn <<'EOM';
#define isLEXWARN_on (PL_curcop->cop_warnings != pWARN_STD)
#define isLEXWARN_off (PL_curcop->cop_warnings == pWARN_STD)
#define isWARN_ONCE (PL_dowarn & (G_WARN_ON|G_WARN_ONCE))
-#define isWARN_on(c,x) (IsSet(SvPVX(c), 2*(x)))
-#define isWARNf_on(c,x) (IsSet(SvPVX(c), 2*(x)+1))
-
-#define ckWARN(x) \
- ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \
- (PL_curcop->cop_warnings == pWARN_ALL || \
- isWARN_on(PL_curcop->cop_warnings, x) ) ) \
- || (isLEXWARN_off && PL_dowarn & G_WARN_ON) )
-
-#define ckWARN2(x,y) \
- ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \
- (PL_curcop->cop_warnings == pWARN_ALL || \
- isWARN_on(PL_curcop->cop_warnings, x) || \
- isWARN_on(PL_curcop->cop_warnings, y) ) ) \
- || (isLEXWARN_off && PL_dowarn & G_WARN_ON) )
-
-#define ckWARN3(x,y,z) \
- ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \
- (PL_curcop->cop_warnings == pWARN_ALL || \
- isWARN_on(PL_curcop->cop_warnings, x) || \
- isWARN_on(PL_curcop->cop_warnings, y) || \
- isWARN_on(PL_curcop->cop_warnings, z) ) ) \
- || (isLEXWARN_off && PL_dowarn & G_WARN_ON) )
-
-#define ckWARN4(x,y,z,t) \
- ( (isLEXWARN_on && PL_curcop->cop_warnings != pWARN_NONE && \
- (PL_curcop->cop_warnings == pWARN_ALL || \
- isWARN_on(PL_curcop->cop_warnings, x) || \
- isWARN_on(PL_curcop->cop_warnings, y) || \
- isWARN_on(PL_curcop->cop_warnings, z) || \
- isWARN_on(PL_curcop->cop_warnings, t) ) ) \
- || (isLEXWARN_off && PL_dowarn & G_WARN_ON) )
-
-#define ckWARN_d(x) \
- (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \
- (PL_curcop->cop_warnings != pWARN_NONE && \
- isWARN_on(PL_curcop->cop_warnings, x) ) )
-
-#define ckWARN2_d(x,y) \
- (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \
- (PL_curcop->cop_warnings != pWARN_NONE && \
- (isWARN_on(PL_curcop->cop_warnings, x) || \
- isWARN_on(PL_curcop->cop_warnings, y) ) ) )
-
-#define ckWARN3_d(x,y,z) \
- (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \
- (PL_curcop->cop_warnings != pWARN_NONE && \
- (isWARN_on(PL_curcop->cop_warnings, x) || \
- isWARN_on(PL_curcop->cop_warnings, y) || \
- isWARN_on(PL_curcop->cop_warnings, z) ) ) )
-
-#define ckWARN4_d(x,y,z,t) \
- (isLEXWARN_off || PL_curcop->cop_warnings == pWARN_ALL || \
- (PL_curcop->cop_warnings != pWARN_NONE && \
- (isWARN_on(PL_curcop->cop_warnings, x) || \
- isWARN_on(PL_curcop->cop_warnings, y) || \
- isWARN_on(PL_curcop->cop_warnings, z) || \
- isWARN_on(PL_curcop->cop_warnings, t) ) ) )
-
-#define packWARN(a) (a )
-#define packWARN2(a,b) ((a) | (b)<<8 )
-#define packWARN3(a,b,c) ((a) | (b)<<8 | (c) <<16 )
-#define packWARN4(a,b,c,d) ((a) | (b)<<8 | (c) <<16 | (d) <<24)
+#define isWARN_on(c,x) (IsSet((U8 *)(c + 1), 2*(x)))
+#define isWARNf_on(c,x) (IsSet((U8 *)(c + 1), 2*(x)+1))
+
+#define DUP_WARNINGS(p) \
+ (specialWARN(p) ? (STRLEN*)(p) \
+ : (STRLEN*)CopyD(p, PerlMemShared_malloc(sizeof(*p)+*p), sizeof(*p)+*p, \
+ char))
+
+#define ckWARN(w) Perl_ckwarn(aTHX_ packWARN(w))
+#define ckWARN2(w1,w2) Perl_ckwarn(aTHX_ packWARN2(w1,w2))
+#define ckWARN3(w1,w2,w3) Perl_ckwarn(aTHX_ packWARN3(w1,w2,w3))
+#define ckWARN4(w1,w2,w3,w4) Perl_ckwarn(aTHX_ packWARN4(w1,w2,w3,w4))
+
+#define ckWARN_d(w) Perl_ckwarn_d(aTHX_ packWARN(w))
+#define ckWARN2_d(w1,w2) Perl_ckwarn_d(aTHX_ packWARN2(w1,w2))
+#define ckWARN3_d(w1,w2,w3) Perl_ckwarn_d(aTHX_ packWARN3(w1,w2,w3))
+#define ckWARN4_d(w1,w2,w3,w4) Perl_ckwarn_d(aTHX_ packWARN4(w1,w2,w3,w4))
+
+#define packWARN(a) (a )
+#define packWARN2(a,b) ((a) | ((b)<<8) )
+#define packWARN3(a,b,c) ((a) | ((b)<<8) | ((c)<<16) )
+#define packWARN4(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d) <<24))
#define unpackWARN1(x) ((x) & 0xFF)
#define unpackWARN2(x) (((x) >>8) & 0xFF)
isWARNf_on(PL_curcop->cop_warnings, unpackWARN4(x))))
/* end of file warnings.h */
-
+/* ex: set ro: */
EOM
-close WARN ;
+safer_close $warn;
+rename_if_different("warnings.h-new", "warnings.h");
while (<DATA>) {
last if /^KEYWORDS$/ ;
- print PM $_ ;
+ print $pm $_ ;
}
#$list{'all'} = [ $offset .. 8 * ($warn_size/2) - 1 ] ;
$last_ver = 0;
-print PM "our %Offsets : unique = (\n" ;
+print $pm "our %Offsets = (\n" ;
foreach my $k (sort { $a <=> $b } keys %ValueToName) {
my ($name, $version) = @{ $ValueToName{$k} };
$name = lc $name;
$k *= 2 ;
if ( $last_ver != $version ) {
- print PM "\n";
- print PM tab(4, " # Warnings Categories added in Perl $version");
- print PM "\n\n";
+ print $pm "\n";
+ print $pm tab(4, " # Warnings Categories added in Perl $version");
+ print $pm "\n\n";
}
- print PM tab(4, " '$name'"), "=> $k,\n" ;
+ print $pm tab(4, " '$name'"), "=> $k,\n" ;
$last_ver = $version;
}
-print PM " );\n\n" ;
+print $pm " );\n\n" ;
-print PM "our %Bits : unique = (\n" ;
+print $pm "our %Bits = (\n" ;
foreach $k (sort keys %list) {
my $v = $list{$k} ;
my @list = sort { $a <=> $b } @$v ;
- print PM tab(4, " '$k'"), '=> "',
+ print $pm tab(4, " '$k'"), '=> "',
# mkHex($warn_size, @list),
mkHex($warn_size, map $_ * 2 , @list),
'", # [', mkRange(@list), "]\n" ;
}
-print PM " );\n\n" ;
+print $pm " );\n\n" ;
-print PM "our %DeadBits : unique = (\n" ;
+print $pm "our %DeadBits = (\n" ;
foreach $k (sort keys %list) {
my $v = $list{$k} ;
my @list = sort { $a <=> $b } @$v ;
- print PM tab(4, " '$k'"), '=> "',
+ print $pm tab(4, " '$k'"), '=> "',
# mkHex($warn_size, @list),
mkHex($warn_size, map $_ * 2 + 1 , @list),
'", # [', mkRange(@list), "]\n" ;
}
-print PM " );\n\n" ;
-print PM '$NONE = "', ('\0' x $warn_size) , "\";\n" ;
-print PM '$LAST_BIT = ' . "$index ;\n" ;
-print PM '$BYTES = ' . "$warn_size ;\n" ;
+print $pm " );\n\n" ;
+print $pm '$NONE = "', ('\0' x $warn_size) , "\";\n" ;
+print $pm '$LAST_BIT = ' . "$index ;\n" ;
+print $pm '$BYTES = ' . "$warn_size ;\n" ;
while (<DATA>) {
- print PM $_ ;
+ print $pm $_ ;
}
-close PM ;
+print $pm "# ex: set ro:\n";
+safer_close $pm;
+rename_if_different("lib/warnings.pm-new", "lib/warnings.pm");
__END__
-
+# -*- buffer-read-only: t -*-
# !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
# This file was created by warnings.pl
# Any changes made here will be lost.
package warnings;
-our $VERSION = '1.03';
+our $VERSION = '1.06';
+
+# Verify that we're called correctly so that warnings will work.
+# see also strict.pm.
+unless ( __FILE__ =~ /(^|[\/\\])\Q${\__PACKAGE__}\E\.pmc?$/ ) {
+ my (undef, $f, $l) = caller;
+ die("Incorrect use of pragma '${\__PACKAGE__}' at $f line $l.\n");
+}
=head1 NAME
=cut
-use Carp ();
-
KEYWORDS
$All = "" ; vec($All, $Offsets{'all'}, 2) = 3 ;
sub Croaker
{
+ require Carp::Heavy; # this initializes %CarpInternal
+ local $Carp::CarpInternal{'warnings'};
delete $Carp::CarpInternal{'warnings'};
Carp::croak(@_);
}
${^WARNING_BITS} = $mask ;
}
+my %builtin_type; @builtin_type{qw(SCALAR ARRAY HASH CODE REF GLOB LVALUE Regexp)} = ();
+
sub __chk
{
my $category ;
if (@_) {
# check the category supplied.
$category = shift ;
- if (ref $category) {
- Croaker ("not an object")
- if $category !~ /^([^=]+)=/ ;
- $category = $1 ;
+ if (my $type = ref $category) {
+ Croaker("not an object")
+ if exists $builtin_type{$type};
+ $category = $type;
$isobj = 1 ;
}
$offset = $Offsets{$category};
$i -= 2 ;
}
else {
- for ($i = 2 ; $pkg = (caller($i))[0] ; ++ $i) {
- last if $pkg ne $this_pkg ;
- }
- $i = 2
- if !$pkg || $pkg eq $this_pkg ;
+ $i = _error_loc(); # see where Carp will allocate the error
}
my $callers_bitmask = (caller($i))[9] ;
return ($callers_bitmask, $offset, $i) ;
}
+sub _error_loc {
+ require Carp::Heavy;
+ goto &Carp::short_error_loc; # don't introduce another stack frame
+}
+
sub enabled
{
Croaker("Usage: warnings::enabled([category])")
my $message = pop ;
my ($callers_bitmask, $offset, $i) = __chk(@_) ;
+ require Carp;
Carp::croak($message)
if vec($callers_bitmask, $offset+1, 1) ||
vec($callers_bitmask, $Offsets{'all'}+1, 1) ;
(vec($callers_bitmask, $offset, 1) ||
vec($callers_bitmask, $Offsets{'all'}, 1)) ;
+ require Carp;
Carp::croak($message)
if vec($callers_bitmask, $offset+1, 1) ||
vec($callers_bitmask, $Offsets{'all'}+1, 1) ;