mirror of
https://git.savannah.gnu.org/git/parallel.git
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568 lines
18 KiB
Perl
568 lines
18 KiB
Perl
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# -*- buffer-read-only: t -*-
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# !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
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# This file is built by regen/warnings.pl.
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# Any changes made here will be lost!
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package warnings;
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our $VERSION = '1.12';
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# Verify that we're called correctly so that warnings will work.
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# see also strict.pm.
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unless ( __FILE__ =~ /(^|[\/\\])\Q${\__PACKAGE__}\E\.pmc?$/ ) {
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my (undef, $f, $l) = caller;
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die("Incorrect use of pragma '${\__PACKAGE__}' at $f line $l.\n");
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}
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=head1 NAME
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warnings - Perl pragma to control optional warnings
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=head1 SYNOPSIS
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use warnings;
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no warnings;
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use warnings "all";
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no warnings "all";
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use warnings::register;
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if (warnings::enabled()) {
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warnings::warn("some warning");
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}
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if (warnings::enabled("void")) {
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warnings::warn("void", "some warning");
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}
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if (warnings::enabled($object)) {
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warnings::warn($object, "some warning");
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}
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warnings::warnif("some warning");
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warnings::warnif("void", "some warning");
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warnings::warnif($object, "some warning");
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=head1 DESCRIPTION
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The C<warnings> pragma is a replacement for the command line flag C<-w>,
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but the pragma is limited to the enclosing block, while the flag is global.
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See L<perllexwarn> for more information.
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If no import list is supplied, all possible warnings are either enabled
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or disabled.
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A number of functions are provided to assist module authors.
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=over 4
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=item use warnings::register
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Creates a new warnings category with the same name as the package where
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the call to the pragma is used.
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=item warnings::enabled()
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Use the warnings category with the same name as the current package.
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Return TRUE if that warnings category is enabled in the calling module.
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Otherwise returns FALSE.
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=item warnings::enabled($category)
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Return TRUE if the warnings category, C<$category>, is enabled in the
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calling module.
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Otherwise returns FALSE.
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=item warnings::enabled($object)
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Use the name of the class for the object reference, C<$object>, as the
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warnings category.
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Return TRUE if that warnings category is enabled in the first scope
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where the object is used.
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Otherwise returns FALSE.
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=item warnings::fatal_enabled()
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Return TRUE if the warnings category with the same name as the current
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package has been set to FATAL in the calling module.
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Otherwise returns FALSE.
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=item warnings::fatal_enabled($category)
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Return TRUE if the warnings category C<$category> has been set to FATAL in
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the calling module.
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Otherwise returns FALSE.
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=item warnings::fatal_enabled($object)
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Use the name of the class for the object reference, C<$object>, as the
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warnings category.
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Return TRUE if that warnings category has been set to FATAL in the first
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scope where the object is used.
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Otherwise returns FALSE.
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=item warnings::warn($message)
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Print C<$message> to STDERR.
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Use the warnings category with the same name as the current package.
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If that warnings category has been set to "FATAL" in the calling module
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then die. Otherwise return.
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=item warnings::warn($category, $message)
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Print C<$message> to STDERR.
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If the warnings category, C<$category>, has been set to "FATAL" in the
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calling module then die. Otherwise return.
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=item warnings::warn($object, $message)
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Print C<$message> to STDERR.
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Use the name of the class for the object reference, C<$object>, as the
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warnings category.
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If that warnings category has been set to "FATAL" in the scope where C<$object>
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is first used then die. Otherwise return.
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=item warnings::warnif($message)
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Equivalent to:
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if (warnings::enabled())
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{ warnings::warn($message) }
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=item warnings::warnif($category, $message)
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Equivalent to:
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if (warnings::enabled($category))
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{ warnings::warn($category, $message) }
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=item warnings::warnif($object, $message)
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Equivalent to:
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if (warnings::enabled($object))
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{ warnings::warn($object, $message) }
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=item warnings::register_categories(@names)
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This registers warning categories for the given names and is primarily for
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use by the warnings::register pragma, for which see L<perllexwarn>.
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=back
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See L<perlmodlib/Pragmatic Modules> and L<perllexwarn>.
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=cut
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our %Offsets = (
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# Warnings Categories added in Perl 5.008
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'all' => 0,
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'closure' => 2,
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'deprecated' => 4,
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'exiting' => 6,
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'glob' => 8,
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'io' => 10,
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'closed' => 12,
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'exec' => 14,
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'layer' => 16,
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'newline' => 18,
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'pipe' => 20,
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'unopened' => 22,
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'misc' => 24,
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'numeric' => 26,
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'once' => 28,
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'overflow' => 30,
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'pack' => 32,
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'portable' => 34,
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'recursion' => 36,
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'redefine' => 38,
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'regexp' => 40,
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'severe' => 42,
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'debugging' => 44,
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'inplace' => 46,
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'internal' => 48,
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'malloc' => 50,
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'signal' => 52,
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'substr' => 54,
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'syntax' => 56,
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'ambiguous' => 58,
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'bareword' => 60,
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'digit' => 62,
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'parenthesis' => 64,
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'precedence' => 66,
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'printf' => 68,
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'prototype' => 70,
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'qw' => 72,
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'reserved' => 74,
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'semicolon' => 76,
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'taint' => 78,
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'threads' => 80,
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'uninitialized' => 82,
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'unpack' => 84,
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'untie' => 86,
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'utf8' => 88,
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'void' => 90,
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# Warnings Categories added in Perl 5.011
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'imprecision' => 92,
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'illegalproto' => 94,
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# Warnings Categories added in Perl 5.013
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'non_unicode' => 96,
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'nonchar' => 98,
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'surrogate' => 100,
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);
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our %Bits = (
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'all' => "\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x15", # [0..50]
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'ambiguous' => "\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00", # [29]
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'bareword' => "\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00", # [30]
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'closed' => "\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [6]
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'closure' => "\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [1]
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'debugging' => "\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00", # [22]
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'deprecated' => "\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [2]
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'digit' => "\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00", # [31]
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'exec' => "\x00\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [7]
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'exiting' => "\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [3]
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'glob' => "\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [4]
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'illegalproto' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00", # [47]
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'imprecision' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x00", # [46]
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'inplace' => "\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00", # [23]
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'internal' => "\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00", # [24]
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'io' => "\x00\x54\x55\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [5..11]
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'layer' => "\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [8]
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'malloc' => "\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00", # [25]
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'misc' => "\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [12]
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'newline' => "\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [9]
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'non_unicode' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01", # [48]
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'nonchar' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04", # [49]
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'numeric' => "\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [13]
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'once' => "\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [14]
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'overflow' => "\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [15]
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'pack' => "\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00", # [16]
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'parenthesis' => "\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00", # [32]
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'pipe' => "\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [10]
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'portable' => "\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00", # [17]
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'precedence' => "\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00", # [33]
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'printf' => "\x00\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00", # [34]
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'prototype' => "\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00", # [35]
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'qw' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00", # [36]
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'recursion' => "\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00\x00\x00", # [18]
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'redefine' => "\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x00", # [19]
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'regexp' => "\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00", # [20]
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'reserved' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00", # [37]
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'semicolon' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00", # [38]
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'severe' => "\x00\x00\x00\x00\x00\x54\x05\x00\x00\x00\x00\x00\x00", # [21..25]
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'signal' => "\x00\x00\x00\x00\x00\x00\x10\x00\x00\x00\x00\x00\x00", # [26]
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'substr' => "\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00", # [27]
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'surrogate' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10", # [50]
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'syntax' => "\x00\x00\x00\x00\x00\x00\x00\x55\x55\x15\x00\x40\x00", # [28..38,47]
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'taint' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00", # [39]
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'threads' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00", # [40]
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'uninitialized' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00", # [41]
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'unopened' => "\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [11]
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'unpack' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10\x00\x00", # [42]
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'untie' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00", # [43]
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'utf8' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x15", # [44,48..50]
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'void' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00", # [45]
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);
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our %DeadBits = (
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'all' => "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\x2a", # [0..50]
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'ambiguous' => "\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00", # [29]
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'bareword' => "\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00", # [30]
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'closed' => "\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [6]
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'closure' => "\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [1]
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'debugging' => "\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00", # [22]
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|
|
'deprecated' => "\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [2]
|
||
|
|
'digit' => "\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00", # [31]
|
||
|
|
'exec' => "\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [7]
|
||
|
|
'exiting' => "\x80\x00\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\x00", # [4]
|
||
|
|
'illegalproto' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00", # [47]
|
||
|
|
'imprecision' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00", # [46]
|
||
|
|
'inplace' => "\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00", # [23]
|
||
|
|
'internal' => "\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00", # [24]
|
||
|
|
'io' => "\x00\xa8\xaa\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [5..11]
|
||
|
|
'layer' => "\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [8]
|
||
|
|
'malloc' => "\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00", # [25]
|
||
|
|
'misc' => "\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [12]
|
||
|
|
'newline' => "\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [9]
|
||
|
|
'non_unicode' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02", # [48]
|
||
|
|
'nonchar' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08", # [49]
|
||
|
|
'numeric' => "\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [13]
|
||
|
|
'once' => "\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [14]
|
||
|
|
'overflow' => "\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [15]
|
||
|
|
'pack' => "\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00", # [16]
|
||
|
|
'parenthesis' => "\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00", # [32]
|
||
|
|
'pipe' => "\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [10]
|
||
|
|
'portable' => "\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x00", # [17]
|
||
|
|
'precedence' => "\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00", # [33]
|
||
|
|
'printf' => "\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00", # [34]
|
||
|
|
'prototype' => "\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00", # [35]
|
||
|
|
'qw' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00", # [36]
|
||
|
|
'recursion' => "\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00", # [18]
|
||
|
|
'redefine' => "\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00", # [19]
|
||
|
|
'regexp' => "\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00", # [20]
|
||
|
|
'reserved' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00", # [37]
|
||
|
|
'semicolon' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00", # [38]
|
||
|
|
'severe' => "\x00\x00\x00\x00\x00\xa8\x0a\x00\x00\x00\x00\x00\x00", # [21..25]
|
||
|
|
'signal' => "\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00", # [26]
|
||
|
|
'substr' => "\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00", # [27]
|
||
|
|
'surrogate' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20", # [50]
|
||
|
|
'syntax' => "\x00\x00\x00\x00\x00\x00\x00\xaa\xaa\x2a\x00\x80\x00", # [28..38,47]
|
||
|
|
'taint' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00", # [39]
|
||
|
|
'threads' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00", # [40]
|
||
|
|
'uninitialized' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00", # [41]
|
||
|
|
'unopened' => "\x00\x00\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", # [11]
|
||
|
|
'unpack' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00", # [42]
|
||
|
|
'untie' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00", # [43]
|
||
|
|
'utf8' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x2a", # [44,48..50]
|
||
|
|
'void' => "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00", # [45]
|
||
|
|
);
|
||
|
|
|
||
|
|
$NONE = "\0\0\0\0\0\0\0\0\0\0\0\0\0";
|
||
|
|
$LAST_BIT = 102 ;
|
||
|
|
$BYTES = 13 ;
|
||
|
|
|
||
|
|
$All = "" ; vec($All, $Offsets{'all'}, 2) = 3 ;
|
||
|
|
|
||
|
|
sub Croaker
|
||
|
|
{
|
||
|
|
require Carp; # this initializes %CarpInternal
|
||
|
|
local $Carp::CarpInternal{'warnings'};
|
||
|
|
delete $Carp::CarpInternal{'warnings'};
|
||
|
|
Carp::croak(@_);
|
||
|
|
}
|
||
|
|
|
||
|
|
sub _bits {
|
||
|
|
my $mask = shift ;
|
||
|
|
my $catmask ;
|
||
|
|
my $fatal = 0 ;
|
||
|
|
my $no_fatal = 0 ;
|
||
|
|
|
||
|
|
foreach my $word ( @_ ) {
|
||
|
|
if ($word eq 'FATAL') {
|
||
|
|
$fatal = 1;
|
||
|
|
$no_fatal = 0;
|
||
|
|
}
|
||
|
|
elsif ($word eq 'NONFATAL') {
|
||
|
|
$fatal = 0;
|
||
|
|
$no_fatal = 1;
|
||
|
|
}
|
||
|
|
elsif ($catmask = $Bits{$word}) {
|
||
|
|
$mask |= $catmask ;
|
||
|
|
$mask |= $DeadBits{$word} if $fatal ;
|
||
|
|
$mask &= ~($DeadBits{$word}|$All) if $no_fatal ;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ Croaker("Unknown warnings category '$word'")}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $mask ;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub bits
|
||
|
|
{
|
||
|
|
# called from B::Deparse.pm
|
||
|
|
push @_, 'all' unless @_ ;
|
||
|
|
return _bits(undef, @_) ;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub import
|
||
|
|
{
|
||
|
|
shift;
|
||
|
|
|
||
|
|
my $mask = ${^WARNING_BITS} ;
|
||
|
|
|
||
|
|
if (vec($mask, $Offsets{'all'}, 1)) {
|
||
|
|
$mask |= $Bits{'all'} ;
|
||
|
|
$mask |= $DeadBits{'all'} if vec($mask, $Offsets{'all'}+1, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
# Empty @_ is equivalent to @_ = 'all' ;
|
||
|
|
${^WARNING_BITS} = @_ ? _bits($mask, @_) : $mask | $Bits{all} ;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub unimport
|
||
|
|
{
|
||
|
|
shift;
|
||
|
|
|
||
|
|
my $catmask ;
|
||
|
|
my $mask = ${^WARNING_BITS} ;
|
||
|
|
|
||
|
|
if (vec($mask, $Offsets{'all'}, 1)) {
|
||
|
|
$mask |= $Bits{'all'} ;
|
||
|
|
$mask |= $DeadBits{'all'} if vec($mask, $Offsets{'all'}+1, 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
push @_, 'all' unless @_;
|
||
|
|
|
||
|
|
foreach my $word ( @_ ) {
|
||
|
|
if ($word eq 'FATAL') {
|
||
|
|
next;
|
||
|
|
}
|
||
|
|
elsif ($catmask = $Bits{$word}) {
|
||
|
|
$mask &= ~($catmask | $DeadBits{$word} | $All);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{ Croaker("Unknown warnings category '$word'")}
|
||
|
|
}
|
||
|
|
|
||
|
|
${^WARNING_BITS} = $mask ;
|
||
|
|
}
|
||
|
|
|
||
|
|
my %builtin_type; @builtin_type{qw(SCALAR ARRAY HASH CODE REF GLOB LVALUE Regexp)} = ();
|
||
|
|
|
||
|
|
sub MESSAGE () { 4 };
|
||
|
|
sub FATAL () { 2 };
|
||
|
|
sub NORMAL () { 1 };
|
||
|
|
|
||
|
|
sub __chk
|
||
|
|
{
|
||
|
|
my $category ;
|
||
|
|
my $offset ;
|
||
|
|
my $isobj = 0 ;
|
||
|
|
my $wanted = shift;
|
||
|
|
my $has_message = $wanted & MESSAGE;
|
||
|
|
|
||
|
|
unless (@_ == 1 || @_ == ($has_message ? 2 : 0)) {
|
||
|
|
my $sub = (caller 1)[3];
|
||
|
|
my $syntax = $has_message ? "[category,] 'message'" : '[category]';
|
||
|
|
Croaker("Usage: $sub($syntax)");
|
||
|
|
}
|
||
|
|
|
||
|
|
my $message = pop if $has_message;
|
||
|
|
|
||
|
|
if (@_) {
|
||
|
|
# check the category supplied.
|
||
|
|
$category = shift ;
|
||
|
|
if (my $type = ref $category) {
|
||
|
|
Croaker("not an object")
|
||
|
|
if exists $builtin_type{$type};
|
||
|
|
$category = $type;
|
||
|
|
$isobj = 1 ;
|
||
|
|
}
|
||
|
|
$offset = $Offsets{$category};
|
||
|
|
Croaker("Unknown warnings category '$category'")
|
||
|
|
unless defined $offset;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$category = (caller(1))[0] ;
|
||
|
|
$offset = $Offsets{$category};
|
||
|
|
Croaker("package '$category' not registered for warnings")
|
||
|
|
unless defined $offset ;
|
||
|
|
}
|
||
|
|
|
||
|
|
my $i;
|
||
|
|
|
||
|
|
if ($isobj) {
|
||
|
|
my $pkg;
|
||
|
|
$i = 2;
|
||
|
|
while (do { { package DB; $pkg = (caller($i++))[0] } } ) {
|
||
|
|
last unless @DB::args && $DB::args[0] =~ /^$category=/ ;
|
||
|
|
}
|
||
|
|
$i -= 2 ;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
$i = _error_loc(); # see where Carp will allocate the error
|
||
|
|
}
|
||
|
|
|
||
|
|
# Defaulting this to 0 reduces complexity in code paths below.
|
||
|
|
my $callers_bitmask = (caller($i))[9] || 0 ;
|
||
|
|
|
||
|
|
my @results;
|
||
|
|
foreach my $type (FATAL, NORMAL) {
|
||
|
|
next unless $wanted & $type;
|
||
|
|
|
||
|
|
push @results, (vec($callers_bitmask, $offset + $type - 1, 1) ||
|
||
|
|
vec($callers_bitmask, $Offsets{'all'} + $type - 1, 1));
|
||
|
|
}
|
||
|
|
|
||
|
|
# &enabled and &fatal_enabled
|
||
|
|
return $results[0] unless $has_message;
|
||
|
|
|
||
|
|
# &warnif, and the category is neither enabled as warning nor as fatal
|
||
|
|
return if $wanted == (NORMAL | FATAL | MESSAGE)
|
||
|
|
&& !($results[0] || $results[1]);
|
||
|
|
|
||
|
|
require Carp;
|
||
|
|
Carp::croak($message) if $results[0];
|
||
|
|
# will always get here for &warn. will only get here for &warnif if the
|
||
|
|
# category is enabled
|
||
|
|
Carp::carp($message);
|
||
|
|
}
|
||
|
|
|
||
|
|
sub _mkMask
|
||
|
|
{
|
||
|
|
my ($bit) = @_;
|
||
|
|
my $mask = "";
|
||
|
|
|
||
|
|
vec($mask, $bit, 1) = 1;
|
||
|
|
return $mask;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub register_categories
|
||
|
|
{
|
||
|
|
my @names = @_;
|
||
|
|
|
||
|
|
for my $name (@names) {
|
||
|
|
if (! defined $Bits{$name}) {
|
||
|
|
$Bits{$name} = _mkMask($LAST_BIT);
|
||
|
|
vec($Bits{'all'}, $LAST_BIT, 1) = 1;
|
||
|
|
$Offsets{$name} = $LAST_BIT ++;
|
||
|
|
foreach my $k (keys %Bits) {
|
||
|
|
vec($Bits{$k}, $LAST_BIT, 1) = 0;
|
||
|
|
}
|
||
|
|
$DeadBits{$name} = _mkMask($LAST_BIT);
|
||
|
|
vec($DeadBits{'all'}, $LAST_BIT++, 1) = 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
sub _error_loc {
|
||
|
|
require Carp;
|
||
|
|
goto &Carp::short_error_loc; # don't introduce another stack frame
|
||
|
|
}
|
||
|
|
|
||
|
|
sub enabled
|
||
|
|
{
|
||
|
|
return __chk(NORMAL, @_);
|
||
|
|
}
|
||
|
|
|
||
|
|
sub fatal_enabled
|
||
|
|
{
|
||
|
|
return __chk(FATAL, @_);
|
||
|
|
}
|
||
|
|
|
||
|
|
sub warn
|
||
|
|
{
|
||
|
|
return __chk(FATAL | MESSAGE, @_);
|
||
|
|
}
|
||
|
|
|
||
|
|
sub warnif
|
||
|
|
{
|
||
|
|
return __chk(NORMAL | FATAL | MESSAGE, @_);
|
||
|
|
}
|
||
|
|
|
||
|
|
# These are not part of any public interface, so we can delete them to save
|
||
|
|
# space.
|
||
|
|
delete $warnings::{$_} foreach qw(NORMAL FATAL MESSAGE);
|
||
|
|
|
||
|
|
1;
|
||
|
|
|
||
|
|
# ex: set ro:
|