* Synced the perlfaq

[p5sagit/p5-mst-13.2.git] / lib / warnings.pm

diff --git a/lib/warnings.pm b/lib/warnings.pm
index 679a883..771c98c 100644 (file)
--- a/lib/warnings.pm
+++ b/lib/warnings.pm
@@ -6,13 +6,13 @@
 
 package warnings;
 
-our $VERSION = '1.06';
+our $VERSION = '1.08';
 
 # Verify that we're called correctly so that warnings will work.
 # see also strict.pm.
-unless ( __FILE__ =~ /(^|[\/\\])\Q@{[__PACKAGE__]}\E\.pmc?$/ ) {
+unless ( __FILE__ =~ /(^|[\/\\])\Q${\__PACKAGE__}\E\.pmc?$/ ) {
     my (undef, $f, $l) = caller;
-    die("Incorrect use of pragma '@{[__PACKAGE__,]}' at $f line $l.\n");
+    die("Incorrect use of pragma '${\__PACKAGE__}' at $f line $l.\n");
 }
 
 =head1 NAME
@@ -84,6 +84,27 @@ Return TRUE if that warnings category is enabled in the first scope
 where the object is used.
 Otherwise returns FALSE.
 
+=item warnings::fatal_enabled()
+
+Return TRUE if the warnings category with the same name as the current
+package has been set to FATAL in the calling module.
+Otherwise returns FALSE.
+
+=item warnings::fatal_enabled($category)
+
+Return TRUE if the warnings category C<$category> has been set to FATAL in
+the calling module.
+Otherwise returns FALSE.
+
+=item warnings::fatal_enabled($object)
+
+Use the name of the class for the object reference, C<$object>, as the
+warnings category.
+
+Return TRUE if that warnings category has been set to FATAL in the first
+scope where the object is used.
+Otherwise returns FALSE.
+
 =item warnings::warn($message)
 
 Print C<$message> to STDERR.
@@ -188,10 +209,14 @@ our %Offsets = (
     'untie'            => 86,
     'utf8'             => 88,
     'void'             => 90,
+
+    # Warnings Categories added in Perl 5.011
+
+    'imprecision'      => 92,
   );
 
 our %Bits = (
-    'all'              => "\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x05", # [0..45]
+    'all'              => "\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x15", # [0..46]
     'ambiguous'                => "\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00", # [29]
     'bareword'         => "\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00", # [30]
     'closed'           => "\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [6]
@@ -202,6 +227,7 @@ our %Bits = (
     'exec'             => "\x00\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [7]
     'exiting'          => "\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [3]
     'glob'             => "\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [4]
+    'imprecision'      => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10", # [46]
     'inplace'          => "\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00", # [23]
     'internal'         => "\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00", # [24]
     'io'               => "\x00\x54\x55\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [5..11]
@@ -240,7 +266,7 @@ our %Bits = (
   );
 
 our %DeadBits = (
-    'all'              => "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\x0a", # [0..45]
+    'all'              => "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\x2a", # [0..46]
     'ambiguous'                => "\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00", # [29]
     'bareword'         => "\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00", # [30]
     'closed'           => "\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [6]
@@ -251,6 +277,7 @@ our %DeadBits = (
     'exec'             => "\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [7]
     'exiting'          => "\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [3]
     'glob'             => "\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [4]
+    'imprecision'      => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20", # [46]
     'inplace'          => "\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00", # [23]
     'internal'         => "\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00", # [24]
     'io'               => "\x00\xa8\xaa\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [5..11]
@@ -289,14 +316,14 @@ our %DeadBits = (
   );
 
 $NONE     = "\0\0\0\0\0\0\0\0\0\0\0\0";
-$LAST_BIT = 92 ;
+$LAST_BIT = 94 ;
 $BYTES    = 12 ;
 
 $All = "" ; vec($All, $Offsets{'all'}, 2) = 3 ;
 
 sub Croaker
 {
-    require Carp::Heavy; # this initializes %CarpInternal
+    require Carp; # this initializes %CarpInternal
     local $Carp::CarpInternal{'warnings'};
     delete $Carp::CarpInternal{'warnings'};
     Carp::croak(@_);
@@ -447,7 +474,7 @@ sub __chk
 }
 
 sub _error_loc {
-    require Carp::Heavy;
+    require Carp;
     goto &Carp::short_error_loc; # don't introduce another stack frame
 }                                                             
 
@@ -463,6 +490,17 @@ sub enabled
            vec($callers_bitmask, $Offsets{'all'}, 1) ;
 }
 
+sub fatal_enabled
+{
+    Croaker("Usage: warnings::fatal_enabled([category])")
+  unless @_ == 1 || @_ == 0 ;
+
+    my ($callers_bitmask, $offset, $i) = __chk(@_) ;
+
+    return 0 unless defined $callers_bitmask;
+    return vec($callers_bitmask, $offset + 1, 1) ||
+           vec($callers_bitmask, $Offsets{'all'} + 1, 1) ;
+}
 
 sub warn
 {