/
Cover.pm
1421 lines (1154 loc) · 41 KB
/
Cover.pm
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# Copyright 2001-2007, Paul Johnson (pjcj@cpan.org)
# This software is free. It is licensed under the same terms as Perl itself.
# The latest version of this software should be available from my homepage:
# http://www.pjcj.net
package Devel::Cover;
use strict;
use warnings;
our $VERSION = "0.60";
use DynaLoader ();
our @ISA = "DynaLoader";
use Devel::Cover::DB 0.60;
use Devel::Cover::Inc 0.60;
use B qw( class ppname main_cv main_start main_root walksymtable OPf_KIDS );
use B::Debug;
use B::Deparse;
use Carp;
use Config;
use Cwd "abs_path";
use File::Spec;
BEGIN
{
# Use Pod::Coverage if it is available.
eval "use Pod::Coverage 0.06";
# If there is any error other than a failure to locate, report it.
die $@ if $@ && $@ !~ m/Can't locate Pod\/Coverage.+pm in \@INC/;
# We'll prefer Pod::Coverage::CountParents
eval "use Pod::Coverage::CountParents";
die $@ if $@ && $@ !~ m/Can't locate Pod\/Coverage.+pm in \@INC/;
}
# $SIG{__DIE__} = \&Carp::confess;
my $Initialised; # import() has been called.
my $Dir; # Directory in which coverage will be
# collected.
my $DB = "cover_db"; # DB name.
my $Merge = 1; # Merge databases.
my $Summary = 1; # Output coverage summary.
my $Subs_only = 0; # Coverage only for sub bodies.
my @Ignore; # Packages to ignore.
my @Inc; # Original @INC to ignore.
my @Select; # Packages to select.
my @Ignore_re; # Packages to ignore.
my @Inc_re; # Original @INC to ignore.
my @Select_re; # Packages to select.
my $Pod = $INC{"Pod/Coverage/CountParents.pm"} ? "Pod::Coverage::CountParents" :
$INC{"Pod/Coverage.pm"} ? "Pod::Coverage" :
""; # Type of pod coverage available.
my %Pod; # Pod coverage data.
my @Cvs; # All the Cvs we want to cover.
my @Subs; # All the subs we want to cover.
my $Cv; # Cv we are looking in.
my $Sub_name; # Name of the sub we are looking in.
my $Coverage; # Raw coverage data.
my $Structure; # Structure of the files.
my %Criteria; # Names of coverage criteria.
my %Coverage; # Coverage criteria to collect.
my %Coverage_options; # Options for overage criteria.
my %Run; # Data collected from the run.
use vars '$File', # Last filename we saw. (localised)
'$Line', # Last line number we saw. (localised)
'$Collect', # Whether or not we are collecting
# coverage data. We make two passes
# over conditions. (localised)
'%Files', # Whether we are interested in files.
# Used in runops function.
'$Silent'; # Output nothing. Can be used anywhere.
BEGIN
{
($File, $Line, $Collect) = ("", 0, 1);
$Silent = ($ENV{HARNESS_PERL_SWITCHES} || "") =~ /Devel::Cover/ ||
($ENV{PERL5OPT} || "") =~ /Devel::Cover/;
*OUT = $ENV{DEVEL_COVER_DEBUG} ? *STDERR : *STDOUT;
}
if (0 && $Config{useithreads})
{
eval "use threads";
no warnings "redefine";
my $original_join;
BEGIN { $original_join = \&threads::join }
# print STDERR "original_join: $original_join\n";
# $original_join = sub { print STDERR "j\n" };
# sub threads::join
*threads::join = sub
{
# print STDERR "threads::join- ", \&threads::join, "\n";
# print STDERR "original_join- $original_join\n";
my $self = shift;
print STDERR "(joining thread ", $self->tid, ")\n";
my @ret = $original_join->($self, @_);
print STDERR "(returning <@ret>)\n";
@ret
};
my $original_destroy;
BEGIN { $original_destroy = \&threads::DESTROY }
*threads::DESTROY = sub
{
my $self = shift;
print STDERR "(destroying thread ", $self->tid, ")\n";
$original_destroy->($self, @_);
};
# print STDERR "threads::join: ", \&threads::join, "\n";
my $new = \&threads::new;
*threads::new = *threads::create = sub
{
my $class = shift;
my $sub = shift;
my $wantarray = wantarray;
$new->($class,
sub
{
print STDERR "Starting thread\n";
set_coverage(keys %Coverage);
my $ret = [ $sub->(@_) ];
print STDERR "Ending thread\n";
report() if $Initialised;
print STDERR "Ended thread\n";
$wantarray ? @{$ret} : $ret->[0];
},
@_
);
};
}
BEGIN { @Inc = @Devel::Cover::Inc::Inc; @Ignore = ("/Devel/Cover[./]") }
# BEGIN { $^P = 0x004 | 0x010 | 0x100 | 0x200 }
BEGIN { $^P = 0x004 | 0x100 | 0x200 }
{
sub check
{
return unless $Initialised;
check_files();
set_coverage(keys %Coverage);
my @coverage = get_coverage();
%Coverage = map { $_ => 1 } @coverage;
delete $Coverage{path}; # not done yet
my $nopod = "";
if (!$Pod && exists $Coverage{pod})
{
delete $Coverage{pod}; # Pod::Coverage unavailable
$nopod = <<EOM;
Pod coverage is unavailable. Please install Pod::Coverage from CPAN.
EOM
}
set_coverage(keys %Coverage);
@coverage = get_coverage();
my $last = pop @coverage || "";
print OUT __PACKAGE__, " $VERSION: Collecting coverage data for ",
join(", ", @coverage),
@coverage ? " and " : "",
"$last.\n",
$nopod,
$Subs_only ? " Collecting for subroutines only.\n" : "",
$ENV{MOD_PERL} ? " Collecting under $ENV{MOD_PERL}\n" : "",
"Selecting packages matching:", join("\n ", "", @Select), "\n",
"Ignoring packages matching:", join("\n ", "", @Ignore), "\n",
"Ignoring packages in:", join("\n ", "", @Inc), "\n"
unless $Silent;
$Run{OS} = $^O;
$Run{perl} = join ".", map ord, split //, $^V;
$Run{run} = $0;
$Run{start} = get_elapsed();
}
no warnings "void"; # avoid "Too late to run CHECK block" warning
CHECK { check }
}
{
my $run_end = 0;
sub first_end
{
# print STDERR "**** END 1 - $run_end\n";
set_last_end() unless $run_end++
}
my $run_init = 0;
sub first_init
{
# print STDERR "**** INIT 1 - $run_init\n";
collect_inits() unless $run_init++
}
}
sub last_end
{
# print STDERR "**** END 2 - [$Initialised]\n";
report() if $Initialised;
# print STDERR "**** END 2 - ended\n";
}
{
no warnings "void"; # avoid "Too late to run ... block" warning
INIT {} # dummy sub to make sure PL_initav is set up and populated
END {} # dummy sub to make sure PL_endav is set up and populated
CHECK { set_first_init_and_end() } # we really want to be first
}
sub CLONE
{
# return;
print STDERR <<EOM;
Unfortunately, Devel::Cover does not yet work with threads. I have done
some work in this area, but there is still more to be done.
EOM
require POSIX;
POSIX::_exit(1);
}
sub import
{
return if $Initialised;
my $class = shift;
my @o = (@_, split ",", $ENV{DEVEL_COVER_OPTIONS} || "");
# print STDERR __PACKAGE__, ": Parsing options from [@_]\n";
my $blib = -d "blib";
@Inc = () if "@o" =~ /-inc /;
@Ignore = () if "@o" =~ /-ignore /;
@Select = () if "@o" =~ /-select /;
while (@o)
{
local $_ = shift @o;
/^-silent/ && do { $Silent = shift @o; next };
/^-dir/ && do { $Dir = shift @o; next };
/^-db/ && do { $DB = shift @o; next };
/^-merge/ && do { $Merge = shift @o; next };
/^-summary/ && do { $Summary = shift @o; next };
/^-blib/ && do { $blib = shift @o; next };
/^-subs_only/ && do { $Subs_only = shift @o; next };
/^-coverage/ &&
do { $Coverage{+shift @o} = 1 while @o && $o[0] !~ /^[-+]/; next };
/^[-+]ignore/ &&
do { push @Ignore, shift @o while @o && $o[0] !~ /^[-+]/; next };
/^[-+]inc/ &&
do { push @Inc, shift @o while @o && $o[0] !~ /^[-+]/; next };
/^[-+]select/ &&
do { push @Select, shift @o while @o && $o[0] !~ /^[-+]/; next };
warn __PACKAGE__ . ": Unknown option $_ ignored\n";
}
if (defined $Dir)
{
# Die tainting.
# Anyone using this module can do worse things than messing with
# tainting.
$Dir = $1 if $Dir =~ /(.*)/;
chdir $Dir or die __PACKAGE__ . ": Can't chdir $Dir: $!\n";
}
else
{
$Dir = $1 if Cwd::getcwd() =~ /(.*)/;
}
unless (-d $DB)
{
# Nasty hack to keep 5.6.1 happy.
mkdir $DB, 0700 or croak "Can't mkdir $DB: $!\n";
chmod 0700, $DB or croak "Can't chmod $DB: $!\n";
}
$DB = $1 if Cwd::abs_path($DB) =~ /(.*)/;
Devel::Cover::DB->delete($DB) unless $Merge;
if ($blib)
{
eval "use blib";
for (@INC) { $_ = $1 if /(.*)/ } # Die tainting.
push @Ignore, "^t/", '\\.t$', '^test\\.pl$';
}
my $ci = $^O eq "MSWin32";
@Select_re = map qr/$_/, @Select;
@Ignore_re = map qr/$_/, @Ignore;
@Inc_re = map $ci ? qr/^\Q$_\//i : qr/^\Q$_\//, @Inc;
for my $c (Devel::Cover::DB->new->criteria)
{
my $func = "coverage_$c";
no strict "refs";
$Criteria{$c} = $func->();
}
%Coverage = (all => 1) unless keys %Coverage;
for (keys %Coverage)
{
my @c = split /-/, $_;
if (@c > 1)
{
$Coverage{shift @c} = \@c;
delete $Coverage{$_};
}
}
%Coverage_options = %Coverage;
$Initialised = 1;
if ($ENV{MOD_PERL})
{
eval "BEGIN {}";
check();
set_first_init_and_end();
}
}
sub cover_names_to_val
{
my $val = 0;
for my $c (@_)
{
if (exists $Criteria{$c})
{
$val |= $Criteria{$c};
}
elsif ($c eq "all" || $c eq "none")
{
my $func = "coverage_$c";
no strict "refs";
$val |= $func->();
}
else
{
warn __PACKAGE__ . qq(: Unknown coverage criterion "$c" ignored.\n);
}
}
$val;
}
sub set_coverage
{
set_criteria(cover_names_to_val(@_));
}
sub add_coverage
{
add_criteria(cover_names_to_val(@_));
}
sub remove_coverage
{
remove_criteria(cover_names_to_val(@_));
}
sub get_coverage
{
return unless defined wantarray;
my @names;
my $val = get_criteria();
for my $c (sort keys %Criteria)
{
push @names, $c if $val & $Criteria{$c};
}
return wantarray ? @names : "@names";
}
{
my %File_cache;
sub normalised_file
{
my ($file) = @_;
return $File_cache{$file} if exists $File_cache{$file};
my $f = $file;
$file =~ s/ \(autosplit into .*\)$//;
# print STDERR "file is <$file>\n";
# use Data::Dumper;
# print STDERR "file is <$file>\ncoverage: ", Dumper coverage(0);
if (exists coverage(0)->{module} && exists coverage(0)->{module}{$file} &&
!File::Spec->file_name_is_absolute($file))
{
my $m = coverage(0)->{module}{$file};
# print STDERR "Loaded <$file> <$m->[0]> from <$m->[1]> ";
$file = File::Spec->rel2abs($file, $m->[1]);
# print STDERR "as <$file> ";
}
if ($] >= 5.008)
{
if ($^O eq "MSWin32" || $^O eq "cygwin")
{
# TODO - Windows seems busted here
}
else
{
# print STDERR "getting abs_path <$file> ";
my $abs = abs_path($file);
# print STDERR "giving <$file> ";
$file = $abs if defined $abs;
}
# print STDERR "finally <$file> <$Dir>\n";
}
if ($^O eq "MSWin32")
{
$file =~ s|\\|/|g;
}
$file =~ s|^$Dir/||;
$File_cache{$f} = $file;
# warn "File: $file => $File\n";
}
}
sub get_location
{
my ($op) = @_;
$File = $op->file;
$Line = $op->line;
# warn "${File}::$Line\n";
# If there's an eval, get the real filename. Enabled from $^P & 0x100.
($File, $Line) = ($1, $2) if $File =~ /^\(eval \d+\)\[(.*):(\d+)\]/;
$File = normalised_file($File);
if (!exists $Run{vec}{$File} && $Run{collected})
{
my %vec;
@vec{@{$Run{collected}}} = ();
delete $vec{time};
$vec{subroutine}++ if exists $vec{pod};
@{$Run{vec}{$File}{$_}}{"vec", "size"} = ("", 0) for keys %vec;
}
}
sub use_file
{
my ($file) = @_;
# die "bad file" unless length $file;
$file = $1 if $file =~ /^\(eval \d+\)\[(.*):\d+\]/;
$file =~ s/ \(autosplit into .*\)$//;
return $Files{$file} if exists $Files{$file};
my $f = normalised_file($file);
# print STDERR "checking <$file> <$f> against ",
# "select(@Select_re), ignore(@Ignore_re), inc(@Inc_re)\n";
for (@Select_re) { return $Files{$file} = 1 if $f =~ $_ }
for (@Ignore_re) { return $Files{$file} = 0 if $f =~ $_ }
for (@Inc_re) { return $Files{$file} = 0 if $f =~ $_ }
# system "pwd; ls -l '$file'";
$Files{$file} = -e $file ? 1 : 0;
warn __PACKAGE__ . qq(: Can't find file "$file" (@_): ignored.\n)
unless $Files{$file} || $Silent || $file =~ /\(eval \d+\)/ ||
$file eq "../../lib/Storable.pm";
$Files{$file}
}
sub check_file
{
my ($cv) = @_;
return unless class($cv) eq "CV";
my $op = $cv->START;
return unless $op->can("file") && class($op) ne "NULL" && is_state($op);
my $file = $op->file;
my $use = use_file($file);
# printf STDERR "%6s $file\n", $use ? "use" : "ignore";
$use
}
sub B::GV::find_cv
{
my $cv = $_[0]->CV;
return unless $$cv;
# print STDERR "find_cv $$cv\n" if check_file($cv);
push @Cvs, $cv if check_file($cv);
push @Cvs, grep check_file($_), $cv->PADLIST->ARRAY->ARRAY
if $cv->can("PADLIST") &&
$cv->PADLIST->can("ARRAY") &&
$cv->PADLIST->ARRAY &&
$cv->PADLIST->ARRAY->can("ARRAY");
};
sub sub_info
{
my ($cv) = @_;
my ($name, $start) = ("", 0);
if (!$cv->GV->isa("B::SPECIAL"))
{
return unless $cv->GV->can("SAFENAME");
$name = $cv->GV->SAFENAME;
# print STDERR "--[$name]--\n";
$name =~ s/(__ANON__)\[.+:\d+\]/$1/ if defined $name;
}
my $root = $cv->ROOT;
if ($root->can("first"))
{
my $lineseq = $root->first;
if ($lineseq->can("first"))
{
# normal case
$start = $lineseq->first;
}
elsif ($lineseq->name eq "nextstate")
{
# completely empty sub - sub empty { }
$start = $lineseq;
}
}
($name, $start)
}
sub check_files
{
# print STDERR "Checking files\n";
@Cvs = grep check_file($_), B::main_cv->PADLIST->ARRAY->ARRAY;
my %seen_pkg;
my %seen_cv;
walksymtable(\%main::, "find_cv", sub { !$seen_pkg{$_[0]}++ });
my $l = sub
{
my ($cv) = @_;
my $line = 0;
my ($name, $start) = sub_info($cv);
if ($start)
{
local ($Line, $File);
get_location($start);
$line = $Line;
# print STDERR "$name - $File:$Line\n";
}
($line, $name)
};
@Cvs = map $_->[0],
sort { $a->[1] <=> $b->[1] || $a->[2] cmp $b->[2] }
map [ $_, $l->($_) ],
grep !$seen_cv{$$_}++,
@Cvs;
# Hack to bump up the refcount of the subs. If we don't do this then the
# subs in some modules don't seem to be around when we get to looking at
# them. I'm not sure why this is, and it seems to me that this hack could
# affect the order of destruction, but I've not seen any problems. Yet.
# object_2svref doesn't exist before 5.8.1.
@Subs = map $_->object_2svref, @Cvs if $] >= 5.008001;
}
sub report
{
$Run{finish} = get_elapsed();
die "Devel::Cover::import() not run: " .
"did you require instead of use Devel::Cover?\n"
unless defined $Dir;
chdir $Dir or die __PACKAGE__ . ": Can't chdir $Dir: $!\n";
my @collected = get_coverage();
return unless @collected;
set_coverage("none");
$Run{collected} = \@collected;
$Structure = Devel::Cover::DB::Structure->new(base => $DB);
$Structure->read_all;
$Structure->add_criteria(@collected);
# use Data::Dumper; $Data::Dumper::Indent = 1;
# use Data::Dumper; print STDERR "Start structure: ", Dumper $Structure;
# print STDERR "Processing cover data\n@Inc\n";
$Coverage = coverage(1) || die "No coverage data available.\n";
# use Data::Dumper; print STDERR Dumper $Coverage;
check_files();
unless ($Subs_only)
{
get_cover(main_cv, main_root);
get_cover($_)
for B::begin_av()->isa("B::AV") ? B::begin_av()->ARRAY : ();
if (exists &B::check_av)
{
get_cover($_)
for B::check_av()->isa("B::AV") ? B::check_av()->ARRAY : ();
}
# get_ends includes INIT blocks
get_cover($_)
for get_ends()->isa("B::AV") ? get_ends()->ARRAY : ();
}
# print STDERR "--- @Cvs\n";
get_cover($_) for @Cvs;
my %files;
$files{$_}++ for keys %{$Run{count}}, keys %{$Run{vec}};
for my $file (sort keys %files)
{
# print STDERR "looking at $file\n";
unless (use_file($file))
{
# print STDERR "deleting $file\n";
delete $Run{count}->{$file};
delete $Run{vec} ->{$file};
$Structure->delete_file($file);
next;
}
# $Structure->add_digest($file, \%Run);
for my $run (keys %{$Run{vec}{$file}})
{
delete $Run{vec}{$file}{$run} unless $Run{vec}{$file}{$run}{size};
}
$Structure->store_counts($file);
}
# use Data::Dumper; print STDERR "End structure: ", Dumper $Structure;
my $run = time . ".$$." . sprintf "%05d", rand 2 ** 16;
my $cover = Devel::Cover::DB->new
(
base => $DB,
runs => { $run => \%Run },
structure => $Structure,
);
$DB .= "/runs";
unless (-d $DB)
{
mkdir $DB, 0700 or croak "Can't mkdir $DB: $!\n";
chmod 0700, $DB or croak "Can't chmod $DB: $!\n";
}
$DB .= "/$run";
$cover->{db} = $DB;
print OUT __PACKAGE__, ": Writing coverage database to $DB\n"
unless $Silent;
$cover->write;
$cover->print_summary if $Summary && !$Silent;
}
sub add_subroutine_cover
{
my ($op) = @_;
get_location($op);
return unless $File;
# print STDERR "Subroutine $Sub_name $Line:$File: ", $op->name, "\n";
my $key = get_key($op);
my $val = $Coverage->{statement}{$key} || 0;
my ($n, $new) = $Structure->add_count("subroutine");
# print STDERR "******* subroutine $n - $new\n";
$Structure->add_subroutine($File, [ $Line, $Sub_name ]) if $new;
$Run{count}{$File}{subroutine}[$n] += $val;
my $vec = $Run{vec}{$File}{subroutine};
vec($vec->{vec}, $n, 1) = $val ? 1 : 0;
$vec->{size} = $n + 1;
}
sub add_statement_cover
{
my ($op) = @_;
get_location($op);
return unless $File;
# print STDERR "Stmt $File:$Line: $op $$op ", $op->name, "\n";
$Run{digests}{$File} ||= $Structure->set_file($File);
my $key = get_key($op);
my $val = $Coverage->{statement}{$key} || 0;
my ($n, $new) = $Structure->add_count("statement");
$Structure->add_statement($File, $Line) if $new;
$Run{count}{$File}{statement}[$n] += $val;
my $vec = $Run{vec}{$File}{statement};
vec($vec->{vec}, $n, 1) = $val ? 1 : 0;
$vec->{size} = $n + 1;
no warnings "uninitialized";
$Run{count}{$File}{time}[$n] += $Coverage->{time}{$key}
if exists $Coverage->{time} && exists $Coverage->{time}{$key};
}
my %Seen;
sub add_branch_cover
{
return unless $Collect && $Coverage{branch};
my ($op, $type, $text, $file, $line) = @_;
# return unless $Seen{branch}{$$op}++;
$text =~ s/^\s+//;
$text =~ s/\s+$//;
my $key = get_key($op);
my $c = $Coverage->{condition}{$key};
no warnings "uninitialized";
# print STDERR "*** add_branch_cover $File:$Line [$type][$c]\n";
if ($type eq "and" ||
$type eq "or" ||
($type eq "elsif" && !exists $Coverage->{branch}{$key}))
{
# and => this could also be a plain if with no else or elsif
# or => this could also be an unless with no else or elsif
# elsif => no subsequent elsifs or elses
# True path taken if not short circuited.
# False path taken if short circuited.
$c = [ $c->[1] + $c->[2], $c->[3] ];
# print STDERR "branch $type [@$c]\n";
}
else
{
$c = $Coverage->{branch}{$key} || [0, 0];
}
my ($n, $new) = $Structure->add_count("branch");
$Structure->add_branch($file, [ $line, { text => $text } ]) if $new;
my $ccount = $Run{count}{$file};
if (exists $ccount->{branch}[$n])
{
$ccount->{branch}[$n][$_] += $c->[$_] for 0 .. $#$c;
}
else
{
$ccount->{branch}[$n] = $c;
my $vec = $Run{vec}{$File}{branch};
vec($vec->{vec}, $vec->{size}++, 1) = $_ ||= 0 ? 1 : 0 for @$c;
}
}
my %condition_locations;
sub add_condition_cover
{
my ($op, $strop, $left, $right) = @_;
unless ($Collect)
{
# $condition_locations{$$op} = [ $File, $Line ];
return
}
# local ($File, $Line) = @{$condition_locations{$$op}}
# if exists $condition_locations{$$op};
my $key = get_key($op);
# print STDERR "Condition cover $$op from $File:$Line\n";
my $type = $op->name;
$type =~ s/assign$//;
$type = "or" if $type eq "dor";
my $c = $Coverage->{condition}{$key};
no warnings "uninitialized";
my $count;
if ($type eq "or" || $type eq "and")
{
my $r = $op->first->sibling;
my $name = $r->name;
$name = $r->first->name if $name eq "sassign";
# TODO - exec? any others?
# print STDERR "Name [$name]\n";
if ($c->[5] || $name =~
/^const|s?refgen|gelem|die|undef|bless|anon(?:list|hash)$/)
{
$c = [ $c->[3], $c->[1] + $c->[2] ];
$count = 2;
}
else
{
@$c = @{$c}[$type eq "or" ? (3, 2, 1) : (3, 1, 2)];
$count = 3;
}
# print STDERR "$type 3 $name [@$c] $File:$Line\n";
}
elsif ($type eq "xor")
{
# !l&&!r l&&!r l&&r !l&&r
@$c = @{$c}[3, 2, 4, 1];
$count = 4;
}
else
{
die qq(Unknown type "$type" for conditional);
}
my $structure =
{
type => "${type}_${count}",
op => $strop,
left => $left,
right => $right,
};
my ($n, $new) = $Structure->add_count("condition");
$Structure->add_condition($File, [ $Line, $structure ]) if $new;
my $ccount = $Run{count}{$File};
if (exists $ccount->{condition}[$n])
{
$ccount->{condition}[$n][$_] += $c->[$_] for 0 .. $#$c;
}
else
{
$ccount->{condition}[$n] = $c;
my $vec = $Run{vec}{$File}{condition};
vec($vec->{vec}, $vec->{size}++, 1) = $_ ||= 0 ? 1 : 0 for @$c;
}
}
*is_scope = \&B::Deparse::is_scope;
*is_state = \&B::Deparse::is_state;
*is_ifelse_cont = \&B::Deparse::is_ifelse_cont;
{
my %Original;
BEGIN
{
$Original{deparse} = \&B::Deparse::deparse;
$Original{logop} = \&B::Deparse::logop;
$Original{logassignop} = \&B::Deparse::logassignop;
}
sub deparse
{
my $self = shift;
my ($op, $cx) = @_;
my $deparse;
if ($Collect)
{
my $class = class($op);
my $null = $class eq "NULL";
my $name = $op->can("name") ? $op->name : "Unknown";
# print STDERR "$class:$name at $File:$Line\n";
{
# Collect everything under here.
local ($File, $Line) = ($File, $Line);
$deparse = eval { $Original{deparse}->($self, @_) };
$deparse =~ s/^\010+//mg if defined $deparse;
$deparse = "Deparse error: $@" if $@;
# print STDERR "Collect Deparse $op $$op => <$deparse>\n";
}
# Get the coverage on this op.
if ($class eq "COP" && $Coverage{statement})
{
add_statement_cover($op) unless $Seen{statement}{$$op}++;
}
elsif (!$null && $name eq "null"
&& ppname($op->targ) eq "pp_nextstate"
&& $Coverage{statement})
{
# If the current op is null, but it was nextstate, we can still
# get at the file and line number, but we need to get dirty.
bless $op, "B::COP";
add_statement_cover($op) unless $Seen{statement}{$$op}++;
bless $op, "B::$class";
}
elsif ($Seen{other}{$$op}++)
{
return "" # Only report on each op once.
}
elsif ($name eq "cond_expr")
{
local ($File, $Line) = ($File, $Line);
my $cond = $op->first;
my $true = $cond->sibling;
my $false = $true->sibling;
if (!($cx < 1 && (is_scope($true) && $true->name ne "null") &&
(is_scope($false) || is_ifelse_cont($false))
&& $self->{'expand'} < 7))
{
{ local $Collect; $cond = $self->deparse($cond, 8) }
add_branch_cover($op, "if", "$cond ? :", $File, $Line);
}
else
{
{ local $Collect; $cond = $self->deparse($cond, 1) }
add_branch_cover($op, "if", "if ($cond) { }", $File, $Line);
while (class($false) ne "NULL" && is_ifelse_cont($false))
{
my $newop = $false->first;
my $newcond = $newop->first;
my $newtrue = $newcond->sibling;
# last in chain is OP_AND => no else
$false = $newtrue->sibling;
{ local $Collect; $newcond = $self->deparse($newcond, 1) }
add_branch_cover($newop, "elsif", "elsif ($newcond) { }",
$File, $Line);
}
}
}
}
else
{
local ($File, $Line) = ($File, $Line);
$deparse = eval { $Original{deparse}->($self, @_) };
$deparse =~ s/^\010+//mg if defined $deparse;
$deparse = "Deparse error: $@" if $@;
# print STDERR "Deparse => <$deparse>\n";
}
$deparse
}
sub logop
{
my $self = shift;
my ($op, $cx, $lowop, $lowprec, $highop, $highprec, $blockname) = @_;
my $left = $op->first;
my $right = $op->first->sibling;
my ($file, $line) = ($File, $Line);
if ($cx < 1 && is_scope($right) && $blockname && $self->{expand} < 7)
{
# if ($a) {$b}
{
# local $Collect;
$left = $self->deparse($left, 1);
$right = $self->deparse($right, 0);
}
add_branch_cover($op, $lowop, "$blockname ($left)", $file, $line)
unless $Seen{branch}{$$op}++;
return "$blockname ($left) {\n\t$right\n\b}\cK"
}
elsif ($cx < 1 && $blockname && !$self->{parens} && $self->{expand} < 7)
{
# $b if $a
{
# local $Collect;
$right = $self->deparse($right, 1);
$left = $self->deparse($left, 1);
}
add_branch_cover($op, $lowop, "$blockname $left", $file, $line)
unless $Seen{branch}{$$op}++;
return "$right $blockname $left"
}