#!./perl
BEGIN {
- unshift @INC, 't';
+ splice @INC, 0, 0, 't', '.';
require Config;
if (($Config::Config{'extensions'} !~ /\bB\b/) ){
print "1..0 # Skip -- Perl configured without B module\n";
exit 0;
}
- require './test.pl';
+ require 'test.pl';
}
use warnings;
use strict;
-my $tests = 46; # not counting those in the __DATA__ section
+my $tests = 52; # not counting those in the __DATA__ section
use B::Deparse;
my $deparse = B::Deparse->new();
new B::Deparse split /,/, $meta{options}
: $deparse;
- my $coderef = eval "$meta{context};\n" . <<'EOC' . "sub {$input\n}";
+ my $code = "$meta{context};\n" . <<'EOC' . "sub {$input\n}";
# Tell B::Deparse about our ambient pragmas
my ($hint_bits, $warning_bits, $hinthash);
BEGIN {
'%^H' => $hinthash,
);
EOC
+ my $coderef = eval $code;
local $::TODO = $meta{todo};
if ($@) {
- is($@, "", "compilation of $desc");
+ is($@, "", "compilation of $desc")
+ or diag "=============================================\n"
+ . "CODE:\n--------\n$code\n--------\n"
+ . "=============================================\n";
}
else {
my $deparsed = $deparse->coderef2text( $coderef );
is($a, "use constant ('PI', 4);\n",
"Proxy Constant Subroutines must not show up as (incorrect) prototypes");
+$a = `$^X $path "-MO=Deparse" -e "sub foo(){1}" 2>&1`;
+$a =~ s/-e syntax OK\n//g;
+is($a, "sub foo () {\n 1;\n}\n",
+ "Main prog consisting of just a constant (via empty proto)");
+
+$a = readpipe qq|$^X $path "-MO=Deparse"|
+ .qq| -e "package F; sub f(){0} sub s{}"|
+ .qq| -e "#line 123 four-five-six"|
+ .qq| -e "package G; sub g(){0} sub s{}" 2>&1|;
+$a =~ s/-e syntax OK\n//g;
+like($a, qr/sub F::f \(\) \{\s*0;?\s*}/,
+ "Constant is dumped in package in which other subs are dumped");
+unlike($a, qr/sub g/,
+ "Constant is not dumped in package in which other subs are not dumped");
+
#Re: perlbug #35857, patch #24505
#handle warnings::register-ed packages properly.
package B::Deparse::Wrapper;
qr'Use of uninitialized value',
'no warnings for undefined sub';
+is runperl(stderr => 1, switches => [ '-MO=-qq,Deparse', $path ],
+ prog => 'sub f { 1; } BEGIN { *g = \&f; }'),
+ "sub f {\n 1;\n}\nsub BEGIN {\n *g = \\&f;\n}\n",
+ "sub glob alias shouldn't impede emitting original sub";
+
+is runperl(stderr => 1, switches => [ '-MO=-qq,Deparse', $path ],
+ prog => 'package Foo; sub f { 1; } BEGIN { *g = \&f; }'),
+ "package Foo;\nsub f {\n 1;\n}\nsub BEGIN {\n *g = \\&f;\n}\n",
+ "sub glob alias outside main shouldn't impede emitting original sub";
+
+is runperl(stderr => 1, switches => [ '-MO=-qq,Deparse', $path ],
+ prog => 'package Foo; sub f { 1; } BEGIN { *Bar::f = \&f; }'),
+ "package Foo;\nsub f {\n 1;\n}\nsub BEGIN {\n *Bar::f = \\&f;\n}\n",
+ "sub glob alias in separate package shouldn't impede emitting original sub";
+
+
done_testing($tests);
__DATA__
my sub f {}
print f();
>>>>
-BEGIN {${^WARNING_BITS} = "\x54\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x54\x55\x55\x55"}
+BEGIN {${^WARNING_BITS} = "\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x54\x55\x55\x55"}
my sub f {
}
state sub f {}
print f();
>>>>
-BEGIN {${^WARNING_BITS} = "\x54\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x54\x55\x55\x55"}
+BEGIN {${^WARNING_BITS} = "\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x55\x54\x55\x55\x55"}
state sub f {
}
$a;
}
;
+####
+# padrange op within pattern code blocks
+/(?{ my($x, $y) = (); })/;
+my $a;
+/$a(?{ my($x, $y) = (); })/;
+my $r1 = qr/(?{ my($x, $y) = (); })/;
+my $r2 = qr/$a(?{ my($x, $y) = (); })/;
+####
+# don't remove pattern whitespace escapes
+/a\ b/;
+/a\ b/x;
+/a\ b/;
+/a\ b/x;
+####
+# my attributes
+my $s1 :foo(f1, f2) bar(b1, b2);
+my @a1 :foo(f1, f2) bar(b1, b2);
+my %h1 :foo(f1, f2) bar(b1, b2);
+my($s2, @a2, %h2) :foo(f1, f2) bar(b1, b2);
+####
+# my class attributes
+package Foo::Bar;
+my Foo::Bar $s1 :foo(f1, f2) bar(b1, b2);
+my Foo::Bar @a1 :foo(f1, f2) bar(b1, b2);
+my Foo::Bar %h1 :foo(f1, f2) bar(b1, b2);
+my Foo::Bar ($s2, @a2, %h2) :foo(f1, f2) bar(b1, b2);
+package main;
+my Foo::Bar $s3 :foo(f1, f2) bar(b1, b2);
+my Foo::Bar @a3 :foo(f1, f2) bar(b1, b2);
+my Foo::Bar %h3 :foo(f1, f2) bar(b1, b2);
+my Foo::Bar ($s4, @a4, %h4) :foo(f1, f2) bar(b1, b2);
+####
+# avoid false positives in my $x :attribute
+'attributes'->import('main', \my $x1, 'foo(bar)'), my $y1;
+'attributes'->import('Fooo', \my $x2, 'foo(bar)'), my $y2;
+####
+# hash slices and hash key/value slices
+my(@a, %h);
+our(@oa, %oh);
+@a = @h{'foo', 'bar'};
+@a = %h{'foo', 'bar'};
+@a = delete @h{'foo', 'bar'};
+@a = delete %h{'foo', 'bar'};
+@oa = @oh{'foo', 'bar'};
+@oa = %oh{'foo', 'bar'};
+@oa = delete @oh{'foo', 'bar'};
+@oa = delete %oh{'foo', 'bar'};
+####
+# keys optimised away in void and scalar context
+no warnings;
+;
+our %h1;
+my($x, %h2);
+%h1;
+keys %h1;
+$x = %h1;
+$x = keys %h1;
+%h2;
+keys %h2;
+$x = %h2;
+$x = keys %h2;
+####
+# eq,const optimised away for (index() == -1)
+my($a, $b);
+our $c;
+$c = index($a, $b) == 2;
+$c = rindex($a, $b) == 2;
+$c = index($a, $b) == -1;
+$c = rindex($a, $b) == -1;
+$c = index($a, $b) != -1;
+$c = rindex($a, $b) != -1;
+$c = (index($a, $b) == -1);
+$c = (rindex($a, $b) == -1);
+$c = (index($a, $b) != -1);
+$c = (rindex($a, $b) != -1);
+####
+# eq,const,sassign,madmy optimised away for (index() == -1)
+my($a, $b);
+my $c;
+$c = index($a, $b) == 2;
+$c = rindex($a, $b) == 2;
+$c = index($a, $b) == -1;
+$c = rindex($a, $b) == -1;
+$c = index($a, $b) != -1;
+$c = rindex($a, $b) != -1;
+$c = (index($a, $b) == -1);
+$c = (rindex($a, $b) == -1);
+$c = (index($a, $b) != -1);
+$c = (rindex($a, $b) != -1);
+####
+# plain multiconcat
+my($a, $b, $c, $d, @a);
+$d = length $a . $b . $c;
+$d = length($a) . $b . $c;
+print '' . $a;
+push @a, ($a . '') * $b;
+unshift @a, "$a" * ($b . '');
+print $a . 'x' . $b . $c;
+print $a . 'x' . $b . $c, $d;
+print $b . $c . ($a . $b);
+print $b . $c . ($a . $b);
+print $b . $c . @a;
+print $a . "\x{100}";
+####
+# double-quoted multiconcat
+my($a, $b, $c, $d, @a);
+print "${a}x\x{100}$b$c";
+print "$a\Q$b\E$c\Ua$a\E\Lb$b\uc$c\E$a${b}c$c";
+print "A=$a[length 'b' . $c . 'd'] b=$b";
+print "A=@a B=$b";
+print "\x{101}$a\x{100}";
+$a = qr/\Q
+$b $c
+\x80
+\x{100}
+\E$c
+/;
+####
+# sprintf multiconcat
+my($a, $b, $c, $d, @a);
+print sprintf("%s%s%%%sx%s\x{100}%s", $a, $b, $c, scalar @a, $d);
+####
+# multiconcat with lexical assign
+my($a, $b, $c, $d, $e, @a);
+$d = 'foo' . $a;
+$d = "foo$a";
+$d = $a . '';
+$d = 'foo' . $a . 'bar';
+$d = $a . $b;
+$d = $a . $b . $c;
+$d = $a . $b . $c . @a;
+$e = ($d = $a . $b . $c);
+$d = !$a . $b . $c;
+$a = $b . $c . ($a . $b);
+$e = f($d = !$a . $b) . $c;
+$d = "${a}x\x{100}$b$c";
+f($d = !$a . $b . $c);
+####
+# multiconcat with lexical my
+my($a, $b, $c, $d, $e, @a);
+my $d1 = 'foo' . $a;
+my $d2 = "foo$a";
+my $d3 = $a . '';
+my $d4 = 'foo' . $a . 'bar';
+my $d5 = $a . $b;
+my $d6 = $a . $b . $c;
+my $e7 = ($d = $a . $b . $c);
+my $d8 = !$a . $b . $c;
+my $d9 = $b . $c . ($a . $b);
+my $da = f($d = !$a . $b) . $c;
+my $dc = "${a}x\x{100}$b$c";
+f(my $db = !$a . $b . $c);
+my $dd = $a . $b . $c . @a;
+####
+# multiconcat with lexical append
+my($a, $b, $c, $d, $e, @a);
+$d .= '';
+$d .= $a;
+$d .= "$a";
+$d .= 'foo' . $a;
+$d .= "foo$a";
+$d .= $a . '';
+$d .= 'foo' . $a . 'bar';
+$d .= $a . $b;
+$d .= $a . $b . $c;
+$d .= $a . $b . @a;
+$e .= ($d = $a . $b . $c);
+$d .= !$a . $b . $c;
+$a .= $b . $c . ($a . $b);
+$e .= f($d .= !$a . $b) . $c;
+f($d .= !$a . $b . $c);
+$d .= "${a}x\x{100}$b$c";
+####
+# multiconcat with expression assign
+my($a, $b, $c, @a);
+our($d, $e);
+$d = 'foo' . $a;
+$d = "foo$a";
+$d = $a . '';
+$d = 'foo' . $a . 'bar';
+$d = $a . $b;
+$d = $a . $b . $c;
+$d = $a . $b . @a;
+$e = ($d = $a . $b . $c);
+$a["-$b-"] = !$a . $b . $c;
+$a[$b]{$c}{$d ? $a : $b . $c} = !$a . $b . $c;
+$a = $b . $c . ($a . $b);
+$e = f($d = !$a . $b) . $c;
+$d = "${a}x\x{100}$b$c";
+f($d = !$a . $b . $c);
+####
+# multiconcat with expression concat
+my($a, $b, $c, @a);
+our($d, $e);
+$d .= 'foo' . $a;
+$d .= "foo$a";
+$d .= $a . '';
+$d .= 'foo' . $a . 'bar';
+$d .= $a . $b;
+$d .= $a . $b . $c;
+$d .= $a . $b . @a;
+$e .= ($d .= $a . $b . $c);
+$a["-$b-"] .= !$a . $b . $c;
+$a[$b]{$c}{$d ? $a : $b . $c} .= !$a . $b . $c;
+$a .= $b . $c . ($a . $b);
+$e .= f($d .= !$a . $b) . $c;
+$d .= "${a}x\x{100}$b$c";
+f($d .= !$a . $b . $c);
+####
+# multiconcat with CORE::sprintf
+# CONTEXT sub sprintf {}
+my($a, $b);
+my $x = CORE::sprintf('%s%s', $a, $b);
+####
+# multiconcat with backticks
+my($a, $b);
+our $x;
+$x = `$a-$b`;
+####
+# multiconcat within qr//
+my($r, $a, $b);
+$r = qr/abc\Q$a-$b\Exyz/;
+####
+# tr with unprintable characters
+my $str;
+$str = 'foo';
+$str =~ tr/\cA//;
+####
+# CORE::foo special case in bareword parsing
+print $CORE::foo, $CORE::foo::bar;
+print @CORE::foo, @CORE::foo::bar;
+print %CORE::foo, %CORE::foo::bar;
+print $CORE::foo{'a'}, $CORE::foo::bar{'a'};
+print &CORE::foo, &CORE::foo::bar;
+print &CORE::foo(), &CORE::foo::bar();
+print \&CORE::foo, \&CORE::foo::bar;
+print *CORE::foo, *CORE::foo::bar;
+print stat CORE::foo::, stat CORE::foo::bar;
+print CORE::foo:: 1;
+print CORE::foo::bar 2;
+####
+# trailing colons on glob names
+no strict 'vars';
+$Foo::::baz = 1;
+print $foo, $foo::, $foo::::;
+print @foo, @foo::, @foo::::;
+print %foo, %foo::, %foo::::;
+print $foo{'a'}, $foo::{'a'}, $foo::::{'a'};
+print &foo, &foo::, &foo::::;
+print &foo(), &foo::(), &foo::::();
+print \&foo, \&foo::, \&foo::::;
+print *foo, *foo::, *foo::::;
+print stat Foo, stat Foo::::;
+print Foo 1;
+print Foo:::: 2;
+####
+# trailing colons mixed with CORE
+no strict 'vars';
+print $CORE, $CORE::, $CORE::::;
+print @CORE, @CORE::, @CORE::::;
+print %CORE, %CORE::, %CORE::::;
+print $CORE{'a'}, $CORE::{'a'}, $CORE::::{'a'};
+print &CORE, &CORE::, &CORE::::;
+print &CORE(), &CORE::(), &CORE::::();
+print \&CORE, \&CORE::, \&CORE::::;
+print *CORE, *CORE::, *CORE::::;
+print stat CORE, stat CORE::::;
+print CORE 1;
+print CORE:::: 2;
+print $CORE::foo, $CORE::foo::, $CORE::foo::::;
+print @CORE::foo, @CORE::foo::, @CORE::foo::::;
+print %CORE::foo, %CORE::foo::, %CORE::foo::::;
+print $CORE::foo{'a'}, $CORE::foo::{'a'}, $CORE::foo::::{'a'};
+print &CORE::foo, &CORE::foo::, &CORE::foo::::;
+print &CORE::foo(), &CORE::foo::(), &CORE::foo::::();
+print \&CORE::foo, \&CORE::foo::, \&CORE::foo::::;
+print *CORE::foo, *CORE::foo::, *CORE::foo::::;
+print stat CORE::foo::, stat CORE::foo::::;
+print CORE::foo:: 1;
+print CORE::foo:::: 2;
+####
+# \&foo
+my sub foo {
+ 1;
+}
+no strict 'vars';
+print \&main::foo;
+print \&{foo};
+print \&bar;
+use strict 'vars';
+print \&main::foo;
+print \&{foo};
+print \&main::bar;
+####
+# exists(&foo)
+my sub foo {
+ 1;
+}
+no strict 'vars';
+print exists &main::foo;
+print exists &{foo};
+print exists &bar;
+use strict 'vars';
+print exists &main::foo;
+print exists &{foo};
+print exists &main::bar;
+# precedence of optimised-away 'keys' (OPpPADHV_ISKEYS/OPpRV2HV_ISKEYS)
+my($r1, %h1, $res);
+our($r2, %h2);
+$res = keys %h1;
+$res = keys %h2;
+$res = keys %$r1;
+$res = keys %$r2;
+$res = keys(%h1) / 2 - 1;
+$res = keys(%h2) / 2 - 1;
+$res = keys(%$r1) / 2 - 1;
+$res = keys(%$r2) / 2 - 1;
+####
+# ditto in presence of sub keys {}
+# CONTEXT sub keys {}
+no warnings;
+my($r1, %h1, $res);
+our($r2, %h2);
+CORE::keys %h1;
+CORE::keys(%h1) / 2;
+$res = CORE::keys %h1;
+$res = CORE::keys %h2;
+$res = CORE::keys %$r1;
+$res = CORE::keys %$r2;
+$res = CORE::keys(%h1) / 2 - 1;
+$res = CORE::keys(%h2) / 2 - 1;
+$res = CORE::keys(%$r1) / 2 - 1;
+$res = CORE::keys(%$r2) / 2 - 1;
+####
+# concat: STACKED: ambiguity between .= and optimised nested
+my($a, $b);
+$b = $a . $a . $a;
+(($a .= $a) .= $a) .= $a;
https://perl5.git.perl.org / perl5.git / blobdiff