551 lines
15 KiB
Perl
551 lines
15 KiB
Perl
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package dumpvar;
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# Needed for PrettyPrinter only:
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# require 5.001; # Well, it coredumps anyway undef DB in 5.000 (not now)
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# translate control chars to ^X - Randal Schwartz
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# Modifications to print types by Peter Gordon v1.0
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# Ilya Zakharevich -- patches after 5.001 (and some before ;-)
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# Won't dump symbol tables and contents of debugged files by default
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$winsize = 80 unless defined $winsize;
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# Defaults
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# $globPrint = 1;
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$printUndef = 1 unless defined $printUndef;
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$tick = "auto" unless defined $tick;
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$unctrl = 'quote' unless defined $unctrl;
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$subdump = 1;
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$dumpReused = 0 unless defined $dumpReused;
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$bareStringify = 1 unless defined $bareStringify;
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sub main::dumpValue {
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local %address;
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local $^W=0;
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(print "undef\n"), return unless defined @_[0];
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(print &stringify(@_[0]), "\n"), return unless ref @_[0];
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push @_, -1 if @_ == 1;
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dumpvar::unwrap(@_[0], 0, @_[1]);
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}
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# This one is good for variable names:
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sub unctrl {
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local($_) = @_;
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local($v) ;
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return \$_ if ref \$_ eq "GLOB";
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if (ord('A') == 193) { # EBCDIC.
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# EBCDIC has no concept of "\cA" or "A" being related
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# to each other by a linear/boolean mapping.
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} else {
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s/([\001-\037\177])/{'^'.pack('c',ord($1)^^^64)}/g;
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}
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$_;
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}
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sub uniescape {
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join("",
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map { $_ +> 255 ? sprintf("\\x\{\%04X\}", $_) : chr($_) }
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unpack("U*", @_[0]));
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}
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sub stringify {
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local($_,$noticks) = @_;
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local($v) ;
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my $tick = $tick;
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return 'undef' unless defined $_ or not $printUndef;
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return '*' . Symbol::glob_name($_) if ref \$_ eq 'GLOB';
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$_ = &{*{Symbol::fetch_glob('overload::StrVal')}}($_)
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if $bareStringify and ref $_
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and %{Symbol::stash("overload")} and defined &{*{Symbol::fetch_glob('overload::StrVal')}};
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if ($tick eq 'auto') {
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if (ord('A') == 193) {
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if (m/[\000-\011]/ or m/[\013-\024\31-\037\177]/) {
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$tick = '"';
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} else {
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$tick = "'";
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}
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} else {
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if (m/[\000-\011\013-\037\177]/) {
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$tick = '"';
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} else {
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$tick = "'";
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}
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}
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}
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if ($tick eq "'") {
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s/([\'\\])/\\$1/g;
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} elsif ($unctrl eq 'unctrl') {
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s/([\"\\])/\\$1/g ;
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s/([\000-\037\177])/{'^'.pack('c',ord($1)^^^64)}/g;
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# uniescape?
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s/([\200-\377])/{'\0x'.sprintf('\%2X',ord($1))}/g
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if $quoteHighBit;
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} elsif ($unctrl eq 'quote') {
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s/([\"\\\$\@])/\\$1/g if $tick eq '"';
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s/\033/\\e/g;
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if (ord('A') == 193) { # EBCDIC.
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s/([\000-\037\177])/{'\c'.chr(193)}/g; # Unfinished.
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} else {
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s/([\000-\037\177])/{'\c'._escaped_ord($1)}/g;
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}
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}
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$_ = uniescape($_);
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s/([\200-\377])/{'\\'.sprintf('\%3o',ord($1))}/g if $quoteHighBit;
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($noticks || m/^\d+(\.\d*)?\Z/)
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? $_
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: $tick . $_ . $tick;
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}
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# Ensure a resulting \ is escaped to be \\
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sub _escaped_ord {
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my $chr = shift;
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$chr = chr(ord($chr)^^^64);
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$chr =~ s{\\}{\\\\}g;
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return $chr;
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}
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sub ShortArray {
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my $tArrayDepth = @{@_[0]}-1 ;
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$tArrayDepth = @{@_[0]} +< $arrayDepth ? @{@_[0]}-1 : $arrayDepth-1
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unless $arrayDepth eq '' ;
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my $shortmore = "";
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$shortmore = " ..." if $tArrayDepth +< @{@_[0]}-1 ;
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if (!grep(ref $_, @{@_[0]})) {
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$short = "0..@{@_[0]}-1 '" .
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join("' '", @{@_[0]}[[0..$tArrayDepth]]) . "'$shortmore";
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return $short if length $short +<= $compactDump;
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}
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undef;
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}
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sub DumpElem {
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my $short = &stringify(@_[0], ref @_[0]);
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if ($veryCompact && ref @_[0]
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&& (ref @_[0] eq 'ARRAY' and !grep(ref $_, @{@_[0]}) )) {
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my $end = "0..@{$v}-1 '" .
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join("' '", @{@_[0]}[[0..$tArrayDepth]]) . "'$shortmore";
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} elsif ($veryCompact && ref @_[0]
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&& (ref @_[0] eq 'HASH') and !grep(ref $_, values %{@_[0]})) {
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my $end = 1;
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$short = $sp . "0..@{$v}-1 '" .
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join("' '", @{$v}[[0..$tArrayDepth]]) . "'$shortmore";
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} else {
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print "$short\n";
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unwrap(@_[0],@_[1],@_[2]) if ref @_[0];
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}
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}
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sub unwrap {
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return if $DB::signal;
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local($v) = shift ;
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local($s) = shift ; # extra no of spaces
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local($m) = shift ; # maximum recursion depth
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return if $m == 0;
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local(%v,@v,$sp,$value,$key,@sortKeys,$more,$shortmore,$short) ;
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local($tHashDepth,$tArrayDepth) ;
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$sp = " " x $s ;
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$s += 3 ;
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# Check for reused addresses
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if (ref $v) {
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my $val = $v;
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$val = &{*{Symbol::fetch_glob('overload::StrVal')}}($v)
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if %{Symbol::stash("overload")} and defined &{*{Symbol::fetch_glob('overload::StrVal')}};
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# Match type and address.
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# Unblessed references will look like TYPE(0x...)
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# Blessed references will look like Class=TYPE(0x...)
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($start_part, $val) = split m/=/,$val;
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$val = $start_part unless defined $val;
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($item_type, $address) =
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$val =~ m/([^\(]+) # Keep stuff that's
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# not an open paren
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\( # Skip open paren
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(0x[0-9a-f]+) # Save the address
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\) # Skip close paren
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$/x; # Should be at end now
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if (!$dumpReused && defined $address) {
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%address{$address}++ ;
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if ( %address{$address} +> 1 ) {
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print "{$sp}-> REUSED_ADDRESS\n" ;
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return ;
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}
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}
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} elsif (ref \$v eq 'GLOB') {
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# This is a raw glob. Special handling for that.
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$address = "$v" . ""; # To avoid a bug with globs
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%address{$address}++ ;
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if ( %address{$address} +> 1 ) {
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print "{$sp}*DUMPED_GLOB*\n" ;
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return ;
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}
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}
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if (ref $v eq 'Regexp') {
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# Reformat the regexp to look the standard way.
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my $re = "$v";
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$re =~ s,/,\\/,g;
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print "$sp-> qr/$re/\n";
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return;
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}
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if ( $item_type eq 'HASH' ) {
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# Hash ref or hash-based object.
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my @sortKeys = sort keys(%$v) ;
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undef $more ;
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$tHashDepth = @sortKeys-1 ;
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$tHashDepth = @sortKeys-1 +< $hashDepth-1 ? @sortKeys-1 : $hashDepth-1
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unless $hashDepth eq '' ;
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$more = "....\n" if $tHashDepth +< @sortKeys-1 ;
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$shortmore = "";
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$shortmore = ", ..." if $tHashDepth +< @sortKeys-1 ;
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splice(@sortKeys, $tHashDepth+1);
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if ($compactDump && !grep(ref $_, values %{$v})) {
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#$short = $sp .
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# (join ', ',
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# Next row core dumps during require from DB on 5.000, even with map {"_"}
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# map {&stringify($_) . " => " . &stringify($v->{$_})}
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# @sortKeys) . "'$shortmore";
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$short = $sp;
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my @keys;
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for (@sortKeys) {
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push @keys, &stringify($_) . " => " . &stringify($v->{$_});
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}
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$short .= join ', ', @keys;
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$short .= $shortmore;
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(print "$short\n"), return if length $short +<= $compactDump;
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}
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for $key (@sortKeys) {
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return if $DB::signal;
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$value = % {$v}{$key} ;
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print "$sp", &stringify($key), " => ";
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DumpElem $value, $s, $m-1;
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}
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print "$sp empty hash\n" unless @sortKeys;
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print "$sp$more" if defined $more ;
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} elsif ( $item_type eq 'ARRAY' ) {
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# Array ref or array-based object. Also: undef.
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# See how big the array is.
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$tArrayDepth = @$v-1;
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undef $more ;
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# Bigger than the max?
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$tArrayDepth = @$v-1 +< $arrayDepth-1 ? @$v-1 : $arrayDepth-1
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if defined $arrayDepth && $arrayDepth ne '';
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# Yep. Don't show it all.
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$more = "....\n" if $tArrayDepth +< @$v-1 ;
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$shortmore = "";
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$shortmore = " ..." if $tArrayDepth +< @$v-1 ;
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if ($compactDump && !grep(ref $_, @{$v})) {
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if (@$v) {
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$short = $sp . "0..@{$v}-1 " .
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join(" ",
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map {exists $v->[$_] ? stringify $v->[$_] : "empty"} (0..$tArrayDepth)
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) . "$shortmore";
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} else {
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$short = $sp . "empty array";
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}
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(print "$short\n"), return if length $short +<= $compactDump;
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}
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#if ($compactDump && $short = ShortArray($v)) {
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# print "$short\n";
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# return;
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#}
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for $num (0 .. $tArrayDepth) {
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return if $DB::signal;
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print "$sp$num ";
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if (exists $v->[$num]) {
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if (defined $v->[$num]) {
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DumpElem $v->[$num], $s, $m-1;
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}
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else {
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print "undef\n";
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}
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} else {
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print "empty slot\n";
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}
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}
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print "$sp empty array\n" unless @$v;
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print "$sp$more" if defined $more ;
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} elsif ( $item_type eq 'SCALAR' ) {
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unless (defined $$v) {
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print "$sp-> undef\n";
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return;
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}
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print "$sp-> ";
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DumpElem $$v, $s, $m-1;
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} elsif ( $item_type eq 'REF' ) {
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print "$sp-> {dump::view($$v)}\n";
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return unless defined $$v;
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unwrap($$v, $s+3, $m-1);
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} elsif ( $item_type eq 'CODE' ) {
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# Code object or reference.
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print "$sp-> ";
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dumpsub (0, $v);
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} elsif ( $item_type eq 'GLOB' ) {
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# Glob object or reference.
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print "$sp-> ",&stringify($$v,1),"\n";
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if ($globPrint) {
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$s += 3;
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dumpglob($s, "\{$$v\}", $$v, 1, $m-1);
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} elsif (defined ($fileno = eval {fileno($v)})) {
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print( (' ' x ($s+3)) . "FileHandle(\{$$v\}) => fileno($fileno)\n" );
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}
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} elsif (ref \$v eq 'GLOB') {
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# Raw glob (again?)
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if ($globPrint) {
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dumpglob($s, "\{$v\}", $v, 1, $m-1) if $globPrint;
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} elsif (defined ($fileno = eval {fileno(\$v)})) {
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print( (' ' x $s) . "FileHandle(\{$v\}) => fileno($fileno)\n" );
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}
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}
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}
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sub matchlex {
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(my $var = @_[0]) =~ s/.//;
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$var eq @_[1] or
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(@_[1] =~ m/^([!~])(.)([\x[00]-\x[ff]]*)/) and
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($1 eq '!') ^^^ (eval { $var =~ m/$2$3/ });
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}
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sub matchvar {
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@_[0] eq @_[1] or
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(@_[1] =~ m/^([!~])(.)([\x[00]-\x[ff]]*)/) and
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($1 eq '!') ^^^ (eval {(@_[2] . "::" . @_[0]) =~ m/$2$3/});
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}
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sub compactDump {
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$compactDump = shift if @_;
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$compactDump = 6*80-1 if $compactDump and $compactDump +< 2;
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$compactDump;
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}
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sub veryCompact {
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$veryCompact = shift if @_;
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compactDump(1) if !$compactDump and $veryCompact;
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$veryCompact;
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}
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sub unctrlSet {
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if (@_) {
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my $in = shift;
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if ($in eq 'unctrl' or $in eq 'quote') {
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$unctrl = $in;
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} else {
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print "Unknown value for `unctrl'.\n";
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}
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}
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$unctrl;
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}
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sub quote {
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if (@_ and @_[0] eq '"') {
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|
$tick = '"';
|
||
|
|
$unctrl = 'quote';
|
||
|
|
} elsif (@_ and @_[0] eq 'auto') {
|
||
|
|
$tick = 'auto';
|
||
|
|
$unctrl = 'quote';
|
||
|
|
} elsif (@_) { # Need to set
|
||
|
|
$tick = "'";
|
||
|
|
$unctrl = 'unctrl';
|
||
|
|
}
|
||
|
|
$tick;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub dumpglob {
|
||
|
|
return if $DB::signal;
|
||
|
|
my ($off,$key, $val, $all, $m) = @_;
|
||
|
|
local(*entry) = $val;
|
||
|
|
my $fileno;
|
||
|
|
if (($key !~ m/^_</ or $dumpDBFiles) and defined $entry) {
|
||
|
|
print( (' ' x $off) . "\$", &unctrl($key), " = " );
|
||
|
|
DumpElem $entry, 3+$off, $m;
|
||
|
|
}
|
||
|
|
if (($key !~ m/^_</ or $dumpDBFiles) and @entry) {
|
||
|
|
print( (' ' x $off) . "\@$key = (\n" );
|
||
|
|
unwrap(\@entry,3+$off,$m) ;
|
||
|
|
print( (' ' x $off) . ")\n" );
|
||
|
|
}
|
||
|
|
if ($key ne "main::" && $key ne "DB::" && %entry
|
||
|
|
&& ($dumpPackages or $key !~ m/::$/)
|
||
|
|
&& ($key !~ m/^_</ or $dumpDBFiles)
|
||
|
|
&& !($package eq "dumpvar" and $key eq "stab")) {
|
||
|
|
print( (' ' x $off) . "\%$key = (\n" );
|
||
|
|
unwrap(\%entry,3+$off,$m) ;
|
||
|
|
print( (' ' x $off) . ")\n" );
|
||
|
|
}
|
||
|
|
if (defined ($fileno = eval{fileno(*entry)})) {
|
||
|
|
print( (' ' x $off) . "FileHandle($key) => fileno($fileno)\n" );
|
||
|
|
}
|
||
|
|
if ($all) {
|
||
|
|
if (defined &entry) {
|
||
|
|
dumpsub($off, $key);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
sub dumplex {
|
||
|
|
return if $DB::signal;
|
||
|
|
my ($key, $val, $m, @vars) = @_;
|
||
|
|
return if @vars && !grep( matchlex($key, $_), @vars );
|
||
|
|
local %address;
|
||
|
|
my $off = 0; # It reads better this way
|
||
|
|
my $fileno;
|
||
|
|
if (UNIVERSAL::isa($val,'ARRAY')) {
|
||
|
|
print( (' ' x $off) . "$key = (\n" );
|
||
|
|
unwrap($val,3+$off,$m) ;
|
||
|
|
print( (' ' x $off) . ")\n" );
|
||
|
|
}
|
||
|
|
elsif (UNIVERSAL::isa($val,'HASH')) {
|
||
|
|
print( (' ' x $off) . "$key = (\n" );
|
||
|
|
unwrap($val,3+$off,$m) ;
|
||
|
|
print( (' ' x $off) . ")\n" );
|
||
|
|
}
|
||
|
|
elsif (UNIVERSAL::isa($val,'IO')) {
|
||
|
|
print( (' ' x $off) . "FileHandle($key) => fileno($fileno)\n" );
|
||
|
|
}
|
||
|
|
# No lexical subroutines yet...
|
||
|
|
# elsif (UNIVERSAL::isa($val,'CODE')) {
|
||
|
|
# dumpsub($off, $$val);
|
||
|
|
# }
|
||
|
|
else {
|
||
|
|
print( (' ' x $off) . &unctrl($key), " = " );
|
||
|
|
DumpElem $$val, 3+$off, $m;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
sub CvGV_name_or_bust {
|
||
|
|
my $in = shift;
|
||
|
|
return if $skipCvGV; # Backdoor to avoid problems if XS broken...
|
||
|
|
$in = \&$in; # Hard reference...
|
||
|
|
eval {require Devel::Peek; 1} or return;
|
||
|
|
my $gv = Devel::Peek::CvGV($in) or return;
|
||
|
|
*$gv{PACKAGE} . '::' . *$gv{NAME};
|
||
|
|
}
|
||
|
|
|
||
|
|
sub dumpsub {
|
||
|
|
my ($off,$sub) = @_;
|
||
|
|
my $ini = $sub;
|
||
|
|
my $s;
|
||
|
|
$sub = $1 if (!ref $sub) && ($sub =~ m/^\{\*(.*)\}$/);
|
||
|
|
my $subref = defined $1 ? \&$sub : \&$ini;
|
||
|
|
my $place = (($s = CvGV_name_or_bust($subref)) && %DB::sub{$s})
|
||
|
|
|| ($subdump && ($s = findsubs($subref)) && %DB::sub{$s});
|
||
|
|
$place = '???' unless defined $place;
|
||
|
|
$s = $sub unless defined $s;
|
||
|
|
print( (' ' x $off) . "&{dump::view($s)} in $place\n" );
|
||
|
|
}
|
||
|
|
|
||
|
|
sub findsubs {
|
||
|
|
return undef unless %DB::sub;
|
||
|
|
my ($addr, $name, $loc);
|
||
|
|
while (($name, $loc) = each %DB::sub) {
|
||
|
|
$addr = \&{*{Symbol::fetch_glob($name)}};
|
||
|
|
%subs{dump::view($addr)} = $name;
|
||
|
|
}
|
||
|
|
$subdump = 0;
|
||
|
|
%subs{ dump::view( shift() ) };
|
||
|
|
}
|
||
|
|
|
||
|
|
sub main::dumpvar {
|
||
|
|
my ($package,$m,@vars) = @_;
|
||
|
|
local(%address,$key,$val,$^W);
|
||
|
|
$package .= "::" unless $package =~ m/::$/;
|
||
|
|
*stab = *{Symbol::fetch_glob("main::")};
|
||
|
|
while ($package =~ m/(\w+?::)/g){
|
||
|
|
*stab = %stab{$1};
|
||
|
|
}
|
||
|
|
local $TotalStrings = 0;
|
||
|
|
local $Strings = 0;
|
||
|
|
local $CompleteTotal = 0;
|
||
|
|
while (($key,$val) = each(%stab)) {
|
||
|
|
return if $DB::signal;
|
||
|
|
next if @vars && !grep( matchvar($key, $_), @vars );
|
||
|
|
if ($usageOnly) {
|
||
|
|
globUsage(\$val, $key)
|
||
|
|
if ($package ne 'dumpvar' or $key ne 'stab')
|
||
|
|
and ref(\$val) eq 'GLOB';
|
||
|
|
} else {
|
||
|
|
dumpglob(0,$key, $val, 0, $m);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($usageOnly) {
|
||
|
|
print "String space: $TotalStrings bytes in $Strings strings.\n";
|
||
|
|
$CompleteTotal += $TotalStrings;
|
||
|
|
print "Grand total = $CompleteTotal bytes (1 level deep) + overhead.\n";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
sub scalarUsage {
|
||
|
|
my $size = length(@_[0]);
|
||
|
|
$TotalStrings += $size;
|
||
|
|
$Strings++;
|
||
|
|
$size;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub arrayUsage { # array ref, name
|
||
|
|
my $size = 0;
|
||
|
|
map {$size += scalarUsage($_)} @{@_[0]};
|
||
|
|
my $len = @{@_[0]};
|
||
|
|
print "\@@_[1] = $len item", ($len +> 1 ? "s" : ""),
|
||
|
|
" (data: $size bytes)\n"
|
||
|
|
if defined @_[1];
|
||
|
|
$CompleteTotal += $size;
|
||
|
|
$size;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub hashUsage { # hash ref, name
|
||
|
|
my @keys = keys %{@_[0]};
|
||
|
|
my @values = values %{@_[0]};
|
||
|
|
my $keys = arrayUsage \@keys;
|
||
|
|
my $values = arrayUsage \@values;
|
||
|
|
my $len = @keys;
|
||
|
|
my $total = $keys + $values;
|
||
|
|
print "\%@_[1] = $len item", ($len +> 1 ? "s" : ""),
|
||
|
|
" (keys: $keys; values: $values; total: $total bytes)\n"
|
||
|
|
if defined @_[1];
|
||
|
|
$total;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub globUsage { # glob ref, name
|
||
|
|
local *name = *{@_[0]};
|
||
|
|
$total = 0;
|
||
|
|
$total += scalarUsage $name if defined $name;
|
||
|
|
$total += arrayUsage \@name, @_[1] if @name;
|
||
|
|
$total += hashUsage \%name, @_[1] if %name and @_[1] ne "main::"
|
||
|
|
and @_[1] ne "DB::"; #and !($package eq "dumpvar" and $key eq "stab"));
|
||
|
|
$total;
|
||
|
|
}
|
||
|
|
|
||
|
|
sub packageUsage {
|
||
|
|
my ($package,@vars) = @_;
|
||
|
|
$package .= "::" unless $package =~ m/::$/;
|
||
|
|
local *stab = *{Symbol::fetch_glob("main::")};
|
||
|
|
while ($package =~ m/(\w+?::)/g){
|
||
|
|
*stab = %stab{$1};
|
||
|
|
}
|
||
|
|
local $TotalStrings = 0;
|
||
|
|
local $CompleteTotal = 0;
|
||
|
|
my ($key,$val);
|
||
|
|
while (($key,$val) = each(%stab)) {
|
||
|
|
next if @vars && !grep($key eq $_,@vars);
|
||
|
|
globUsage \$val, $key unless $package eq 'dumpvar' and $key eq 'stab';
|
||
|
|
}
|
||
|
|
print "String space: $TotalStrings.\n";
|
||
|
|
$CompleteTotal += $TotalStrings;
|
||
|
|
print "\nGrand total = $CompleteTotal bytes\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
1;
|
||
|
|
|