Overeager visited-positions optimizations

[p5sagit/p5-mst-13.2.git] / t / lib / b.t

#!./perl

BEGIN {
    chdir 't' if -d 't';
    @INC = '../lib';
}

$|  = 1;
use warnings;
use strict;
use Config;

print "1..15\n";

my $test = 1;

sub ok { print "ok $test\n"; $test++ }

use B::Deparse;
my $deparse = B::Deparse->new() or print "not ";
ok;

print "not " if "{\n    1;\n}" ne $deparse->coderef2text(sub {1});
ok;

print "not " if "{\n    '???';\n    2;\n}" ne
                    $deparse->coderef2text(sub {1;2});
ok;

print "not " if "{\n    \$test /= 2 if ++\$test;\n}" ne
                    $deparse->coderef2text(sub {++$test and $test/=2;});
ok;
{
my $a = <<'EOF';
{
    $test = sub : lvalue {
        1;
    }
    ;
}
EOF
chomp $a;
print "not " if $deparse->coderef2text(sub{$test = sub : lvalue { 1 }}) ne $a;
ok;

$a =~ s/lvalue/method/;
print "not " if $deparse->coderef2text(sub{$test = sub : method { 1 }}) ne $a;
ok;

$a =~ s/method/locked method/;
print "not " if $deparse->coderef2text(sub{$test = sub : method locked { 1 }})
                                     ne $a;
ok;
}

print "not " if (eval "sub ".$deparse->coderef2text(sub () { 42 }))->() != 42;
ok;

use constant 'c', 'stuff';
print "not " if (eval "sub ".$deparse->coderef2text(\&c))->() ne 'stuff';
ok;

# XXX ToDo - constsub that returns a reference
#use constant cr => ['hello'];
#my $string = "sub " . $deparse->coderef2text(\&cr);
#my $val = (eval $string)->();
#print "not " if ref($val) ne 'ARRAY' || $val->[0] ne 'hello';
#ok;

my $a;
my $Is_VMS = $^O eq 'VMS';
$a = `$^X "-I../lib" "-MO=Deparse" -anle 1 2>&1`;
$a =~ s/-e syntax OK\n//g;
$b = <<'EOF';

LINE: while (defined($_ = <ARGV>)) {
    chomp $_;
    @F = split(/\s+/, $_, 0);
    '???'
}
continue {
    '???'
}

EOF
print "# [$a]\n\# vs\n# [$b]\nnot " if $a ne $b;
ok;

$a = `$^X "-I../lib" "-MO=Debug" -e 1 2>&1`;
print "not " unless $a =~
/\bLISTOP\b.*\bOP\b.*\bCOP\b.*\bOP\b/s;
ok;

$a = `$^X "-I../lib" "-MO=Terse" -e 1 2>&1`;
print "not " unless $a =~
/\bLISTOP\b.*leave.*\bOP\b.*enter.*\bCOP\b.*nextstate.*\bOP\b.*null/s;
ok;

$a = `$^X "-I../lib" "-MO=Terse" -ane "s/foo/bar/" 2>&1`;
$a =~ s/\(0x[^)]+\)//g;
$a =~ s/\[[^\]]+\]//g;
$a =~ s/-e syntax OK//;
$a =~ s/[^a-z ]+//g;
$a =~ s/\s+/ /g;
$a =~ s/\b(s|foo|bar|ullsv)\b\s?//g;
$a =~ s/^\s+//;
$a =~ s/\s+$//;
my $is_thread = $Config{use5005threads} && $Config{use5005threads} eq 'define';
if ($is_thread) {
    $b=<<EOF;
leave enter nextstate label leaveloop enterloop null and defined null
threadsv readline gv lineseq nextstate aassign null pushmark split pushre
threadsv const null pushmark rvav gv nextstate subst const unstack nextstate
EOF
} else {
    $b=<<EOF;
leave enter nextstate label leaveloop enterloop null and defined null
null gvsv readline gv lineseq nextstate aassign null pushmark split pushre
null gvsv const null pushmark rvav gv nextstate subst const unstack nextstate
EOF
}
$b=~s/\n/ /g;$b=~s/\s+/ /g;
$b =~ s/\s+$//;
print "# [$a]\n# vs\n# [$b]\nnot " if $a ne $b;
ok;

chomp($a = `$^X "-I../lib" "-MB::Stash" "-Mwarnings" -e1`);
$a = join ',', sort split /,/, $a;
$a =~ s/-u(perlio|open)(?:::\w+)?,//g if defined $Config{'useperlio'} and $Config{'useperlio'} eq 'define';
$a =~ s/-uWin32,// if $^O eq 'MSWin32';
$a =~ s/-u(Cwd|File|File::Copy|OS2),//g if $^O eq 'os2';
$a =~ s/-uCwd,// if $^O eq 'cygwin';
if ($Config{static_ext} eq ' ') {
  $b = '-uCarp,-uCarp::Heavy,-uDB,-uExporter,-uExporter::Heavy,-uattributes,'
     . '-umain,-uwarnings';
  print "# [$a] vs [$b]\nnot " if $a ne $b;
  ok;
} else {
  print "ok $test # skipped: one or more static extensions\n"; $test++;
}

if ($is_thread) {
    print "# use5005threads: test $test skipped\n";
} else {
    $a = `$^X "-I../lib" "-MO=Showlex" -e "my %one" 2>&1`;
    print "# [$a]\nnot " unless $a =~ /sv_undef.*PVNV.*%one.*sv_undef.*HV/s;
}
ok;