[perl5.git] / t / op / method.t

#!./perl -w

#
# test method calls and autoloading.
#

BEGIN {
    chdir 't' if -d 't';
    @INC = qw(. ../lib);
    require "test.pl";
}

use strict;
no warnings 'once';

plan(tests => 116);

@A::ISA = 'B';
@B::ISA = 'C';

sub C::d {"C::d"}
sub D::d {"D::d"}

# First, some basic checks of method-calling syntax:
my $obj = bless [], "Pack";
sub Pack::method { shift; join(",", "method", @_) }
my $mname = "method";

is(Pack->method("a","b","c"), "method,a,b,c");
is(Pack->$mname("a","b","c"), "method,a,b,c");
is(method Pack ("a","b","c"), "method,a,b,c");
is((method Pack "a","b","c"), "method,a,b,c");

is(Pack->method(), "method");
is(Pack->$mname(), "method");
is(method Pack (), "method");
is(Pack->method, "method");
is(Pack->$mname, "method");
is(method Pack, "method");

is($obj->method("a","b","c"), "method,a,b,c");
is($obj->$mname("a","b","c"), "method,a,b,c");
is((method $obj ("a","b","c")), "method,a,b,c");
is((method $obj "a","b","c"), "method,a,b,c");

is($obj->method(0), "method,0");
is($obj->method(1), "method,1");

is($obj->method(), "method");
is($obj->$mname(), "method");
is((method $obj ()), "method");
is($obj->method, "method");
is($obj->$mname, "method");
is(method $obj, "method");

is( A->d, "C::d");		# Update hash table;

*B::d = \&D::d;			# Import now.
is(A->d, "D::d");		# Update hash table;

{
    local @A::ISA = qw(C);	# Update hash table with split() assignment
    is(A->d, "C::d");
    $#A::ISA = -1;
    is(eval { A->d } || "fail", "fail");
}
is(A->d, "D::d");

{
    local *B::d;
    eval 'sub B::d {"B::d1"}';	# Import now.
    is(A->d, "B::d1");	# Update hash table;
    undef &B::d;
    is((eval { A->d }, ($@ =~ /Undefined subroutine/)), 1);
}

is(A->d, "D::d");		# Back to previous state

eval 'no warnings "redefine"; sub B::d {"B::d2"}';	# Import now.
is(A->d, "B::d2");		# Update hash table;

# What follows is hardly guarantied to work, since the names in scripts
# are already linked to "pruned" globs. Say, 'undef &B::d' if it were
# after 'delete $B::{d}; sub B::d {}' would reach an old subroutine.

undef &B::d;
delete $B::{d};
is(A->d, "C::d");

eval 'sub B::d {"B::d2.5"}';
A->d;				# Update hash table;
my $glob = \delete $B::{d};	# non-void context; hang on to the glob
is(A->d, "C::d");		# Update hash table;

eval 'sub B::d {"B::d3"}';	# Import now.
is(A->d, "B::d3");		# Update hash table;

delete $B::{d};
*dummy::dummy = sub {};		# Mark as updated
is(A->d, "C::d");

eval 'sub B::d {"B::d4"}';	# Import now.
is(A->d, "B::d4");		# Update hash table;

delete $B::{d};			# Should work without any help too
is(A->d, "C::d");

{
    local *C::d;
    is(eval { A->d } || "nope", "nope");
}
is(A->d, "C::d");

*A::x = *A::d;
A->d;
is(eval { A->x } || "nope", "nope", 'cache should not follow synonyms');

my $counter;

eval <<'EOF';
sub C::e;
BEGIN { *B::e = \&C::e }	# Shouldn't prevent AUTOLOAD in original pkg
sub Y::f;
$counter = 0;

@X::ISA = 'Y';
@Y::ISA = 'B';

sub B::AUTOLOAD {
  my $c = ++$counter;
  my $method = $B::AUTOLOAD; 
  my $msg = "B: In $method, $c";
  eval "sub $method { \$msg }";
  goto &$method;
}
sub C::AUTOLOAD {
  my $c = ++$counter;
  my $method = $C::AUTOLOAD; 
  my $msg = "C: In $method, $c";
  eval "sub $method { \$msg }";
  goto &$method;
}
EOF

is(A->e(), "C: In C::e, 1");	# We get a correct autoload
is(A->e(), "C: In C::e, 1");	# Which sticks

is(A->ee(), "B: In A::ee, 2"); # We get a generic autoload, method in top
is(A->ee(), "B: In A::ee, 2"); # Which sticks

is(Y->f(), "B: In Y::f, 3");	# We vivify a correct method
is(Y->f(), "B: In Y::f, 3");	# Which sticks

# This test is not intended to be reasonable. It is here just to let you
# know that you broke some old construction. Feel free to rewrite the test
# if your patch breaks it.

{
no warnings 'redefine';
*B::AUTOLOAD = sub {
  use warnings;
  my $c = ++$counter;
  my $method = $::AUTOLOAD; 
  no strict 'refs';
  *$::AUTOLOAD = sub { "new B: In $method, $c" };
  goto &$::AUTOLOAD;
};
}

is(A->eee(), "new B: In A::eee, 4");	# We get a correct $autoload
is(A->eee(), "new B: In A::eee, 4");	# Which sticks

{
    no strict 'refs';
    no warnings 'deprecated';
    # this test added due to bug discovery (in 5.004_04, fb73857aa0bfa8ed)
    # Possibly kill this test now that defined @::array is finally properly
    # deprecated?
    is(defined(@{"unknown_package::ISA"}) ? "defined" : "undefined", "undefined");
}

# test that failed subroutine calls don't affect method calls
{
    package A1;
    sub foo { "foo" }
    package A2;
    @A2::ISA = 'A1';
    package main;
    is(A2->foo(), "foo");
    is(do { eval 'A2::foo()'; $@ ? 1 : 0}, 1);
    is(A2->foo(), "foo");
}

## This test was totally misguided.  It passed before only because the
## code to determine if a package was loaded used to look for the hash
## %Foo::Bar instead of the package Foo::Bar:: -- and Config.pm just
## happens to export %Config.
#  {
#      is(do { use Config; eval 'Config->foo()';
#  	      $@ =~ /^\QCan't locate object method "foo" via package "Config" at/ ? 1 : $@}, 1);
#      is(do { use Config; eval '$d = bless {}, "Config"; $d->foo()';
#  	      $@ =~ /^\QCan't locate object method "foo" via package "Config" at/ ? 1 : $@}, 1);
#  }

# test error messages if method loading fails
my $e;

eval '$e = bless {}, "E::A"; E::A->foo()';
like ($@, qr/^\QCan't locate object method "foo" via package "E::A" at/);
eval '$e = bless {}, "E::B"; $e->foo()';  
like ($@, qr/^\QCan't locate object method "foo" via package "E::B" at/);
eval 'E::C->foo()';
like ($@, qr/^\QCan't locate object method "foo" via package "E::C" (perhaps /);

eval 'UNIVERSAL->E::D::foo()';
like ($@, qr/^\QCan't locate object method "foo" via package "E::D" (perhaps /);
eval 'my $e = bless {}, "UNIVERSAL"; $e->E::E::foo()';
like ($@, qr/^\QCan't locate object method "foo" via package "E::E" (perhaps /);

$e = bless {}, "E::F";  # force package to exist
eval 'UNIVERSAL->E::F::foo()';
like ($@, qr/^\QCan't locate object method "foo" via package "E::F" at/);
eval '$e = bless {}, "UNIVERSAL"; $e->E::F::foo()';
like ($@, qr/^\QCan't locate object method "foo" via package "E::F" at/);

# SUPER:: pseudoclass
@Saab::ISA = "Souper";
sub Souper::method { @_ }
@OtherSaab::ISA = "OtherSouper";
sub OtherSouper::method { "Isidore Ropen, Draft Manager" }
{
   my $o = bless [], "Saab";
   package Saab;
   my @ret = $o->SUPER::method('whatever');
   ::is $ret[0], $o, 'object passed to SUPER::method';
   ::is $ret[1], 'whatever', 'argument passed to SUPER::method';
   @ret = $o->SUPER'method('whatever');
   ::is $ret[0], $o, "object passed to SUPER'method";
   ::is $ret[1], 'whatever', "argument passed to SUPER'method";
   @ret = Saab->SUPER::method;
   ::is $ret[0], 'Saab', "package name passed to SUPER::method";
   @ret = OtherSaab->SUPER::method;
   ::is $ret[0], 'OtherSaab',
      "->SUPER::method uses current package, not invocant";
}  
() = *SUPER::;
{
   local our @ISA = "Souper";
   is eval { (main->SUPER::method)[0] }, 'main',
      'Mentioning *SUPER:: does not stop ->SUPER from working in main';
}
{
    BEGIN {
        *Mover:: = *Mover2::;
        *Mover2:: = *foo;
    }
    package Mover;
    no strict;
    # Not our(@ISA), because the bug we are testing for interacts with an
    # our() bug that cancels this bug out.
    @ISA = 'door';
    sub door::dohtem { 'dohtem' }
    ::is eval { Mover->SUPER::dohtem; }, 'dohtem',
        'SUPER inside moved package';
    undef *door::dohtem;
    *door::dohtem = sub { 'method' };
    ::is eval { Mover->SUPER::dohtem; }, 'method',
        'SUPER inside moved package respects method changes';
}

# failed method call or UNIVERSAL::can() should not autovivify packages
is( $::{"Foo::"} || "none", "none");  # sanity check 1
is( $::{"Foo::"} || "none", "none");  # sanity check 2

is( UNIVERSAL::can("Foo", "boogie") ? "yes":"no", "no" );
is( $::{"Foo::"} || "none", "none");  # still missing?

is( Foo->UNIVERSAL::can("boogie")   ? "yes":"no", "no" );
is( $::{"Foo::"} || "none", "none");  # still missing?

is( Foo->can("boogie")              ? "yes":"no", "no" );
is( $::{"Foo::"} || "none", "none");  # still missing?

is( eval 'Foo->boogie(); 1'         ? "yes":"no", "no" );
is( $::{"Foo::"} || "none", "none");  # still missing?

is(do { eval 'Foo->boogie()';
	  $@ =~ /^\QCan't locate object method "boogie" via package "Foo" (perhaps / ? 1 : $@}, 1);

eval 'sub Foo::boogie { "yes, sir!" }';
is( $::{"Foo::"} ? "ok" : "none", "ok");  # should exist now
is( Foo->boogie(), "yes, sir!");

# TODO: universal.t should test NoSuchPackage->isa()/can()

# This is actually testing parsing of indirect objects and undefined subs
#   print foo("bar") where foo does not exist is not an indirect object.
#   print foo "bar"  where foo does not exist is an indirect object.
eval 'sub AUTOLOAD { "ok ", shift, "\n"; }';
ok(1);

# Bug ID 20010902.002
is(
    eval q[
	my $x = 'x'; # Lexical or package variable, 5.6.1 panics.
	sub Foo::x : lvalue { $x }
	Foo->$x = 'ok';
    ] || $@, 'ok'
);

# An autoloaded, inherited DESTROY may be invoked differently than normal
# methods, and has been known to give rise to spurious warnings
# eg <200203121600.QAA11064@gizmo.fdgroup.co.uk>

{
    use warnings;
    my $w = '';
    local $SIG{__WARN__} = sub { $w = $_[0] };

    sub AutoDest::Base::AUTOLOAD {}
    @AutoDest::ISA = qw(AutoDest::Base);
    { my $x = bless {}, 'AutoDest'; }
    $w =~ s/\n//g;
    is($w, '');
}

# [ID 20020305.025] PACKAGE::SUPER doesn't work anymore

package main;
our @X;
package Amajor;
sub test {
    push @main::X, 'Amajor', @_;
}
package Bminor;
use base qw(Amajor);
package main;
sub Bminor::test {
    $_[0]->Bminor::SUPER::test('x', 'y');
    push @main::X, 'Bminor', @_;
}
Bminor->test('y', 'z');
is("@X", "Amajor Bminor x y Bminor Bminor y z");

package main;
for my $meth (['Bar', 'Foo::Bar'],
	      ['SUPER::Bar', 'main::SUPER::Bar'],
	      ['Xyz::SUPER::Bar', 'Xyz::SUPER::Bar'])
{
    fresh_perl_is(<<EOT,
package UNIVERSAL; sub AUTOLOAD { my \$c = shift; print "\$c \$AUTOLOAD\\n" }
package Xyz;
package main; Foo->$meth->[0]();
EOT
	"Foo $meth->[1]",
	{ switches => [ '-w' ] },
	"check if UNIVERSAL::AUTOLOAD works",
    );
}

# Test for #71952: crash when looking for a nonexistent destructor
# Regression introduced by fbb3ee5af3d4
{
    fresh_perl_is(<<'EOT',
sub M::DESTROY; bless {}, "M" ; print "survived\n";
EOT
    "survived",
    {},
	"no crash with a declared but missing DESTROY method"
    );
}

# Test for calling a method on a packag name return by a magic variable
sub TIESCALAR{bless[]}
sub FETCH{"main"}
my $kalled;
sub bolgy { ++$kalled; }
tie my $a, "";
$a->bolgy;
is $kalled, 1, 'calling a class method via a magic variable';

{
    package NulTest;
    sub method { 1 }

    package main;
    eval {
        NulTest->${ \"method\0Whoops" };
    };
    like $@, qr/Can't locate object method "method\0Whoops" via package "NulTest" at/,
            "method lookup is nul-clean";

    *NulTest::AUTOLOAD = sub { our $AUTOLOAD; return $AUTOLOAD };

    like(NulTest->${ \"nul\0test" }, "nul\0test", "AUTOLOAD is nul-clean");
}


{
    fresh_perl_is(
    q! sub T::DESTROY { $x = $_[0]; } bless [], "T";!,
    "DESTROY created new reference to dead object 'T' during global destruction.",
    {},
	"DESTROY creating a new reference to the object generates a warning."
    );
}

# [perl #43663]
{
    $::{"Just"} = \1;
    sub Just::a_japh { return "$_[0] another Perl hacker," }
    is eval { "Just"->a_japh }, "Just another Perl hacker,",
	'constants do not interfere with class methods';
}

# [perl #109264]
{
    no strict 'vars';
    sub bliggles { 1 }
    sub lbiggles :lvalue { index "foo", "f" }
    ok eval { main->bliggles(my($foo,$bar)) },
      'foo->bar(my($foo,$bar)) is not called in lvalue context';
    ok eval { main->bliggles(our($foo,$bar)) },
      'foo->bar(our($foo,$bar)) is not called in lvalue context';
    ok eval { main->bliggles(local($foo,$bar)) },
      'foo->bar(local($foo,$bar)) is not called in lvalue context';
    ok eval { () = main->lbiggles(my($foo,$bar)); 1 },
      'foo->lv(my($foo,$bar)) is not called in lvalue context';
    ok eval { () = main->lbiggles(our($foo,$bar)); 1 },
      'foo->lv(our($foo,$bar)) is not called in lvalue context';
    ok eval { () = main->lbiggles(local($foo,$bar)); 1 },
      'foo->lv(local($foo,$bar)) is not called in lvalue context';
}

{
   # AUTOLOAD and DESTROY can be declared without a leading sub,
   # like BEGIN and friends.
   package NoSub;

   eval 'AUTOLOAD { our $AUTOLOAD; return $AUTOLOAD }';
   ::ok( !$@, "AUTOLOAD without a leading sub is legal" );

   eval "DESTROY { ::pass( q!DESTROY without a leading sub is legal and gets called! ) }";
   {
      ::ok( NoSub->can("AUTOLOAD"), "...and sets up an AUTOLOAD normally" );
      ::is( eval { NoSub->bluh }, "NoSub::bluh", "...which works as expected" );
   }
   { bless {}, "NoSub"; }
}

eval { () = 3; new {} };
like $@,
     qr/^Can't call method "new" without a package or object reference/,
    'Err msg from new{} when stack contains a number';
eval { () = "foo"; new {} };
like $@,
     qr/^Can't call method "new" without a package or object reference/,
    'Err msg from new{} when stack contains a word';
eval { () = undef; new {} };
like $@,
     qr/^Can't call method "new" without a package or object reference/,
    'Err msg from new{} when stack contains undef';

package egakacp {
  our @ISA = 'ASI';
  sub ASI::m { shift; "@_" };
  my @a = (bless([]), 'arg');
  my $r = SUPER::m{@a};
  ::is $r, 'arg', 'method{@array}';
  $r = SUPER::m{}@a;
  ::is $r, 'arg', 'method{}@array';
  $r = SUPER::m{@a}"b";
  ::is $r, 'arg b', 'method{@array}$more_args';
}

# [perl #114924] SUPER->method
@SUPER::ISA = "SUPPER";
sub SUPPER::foo { "supper" }
is "SUPER"->foo, 'supper', 'SUPER->method';

sub flomp { "flimp" }
sub main::::flomp { "flump" }
is "::"->flomp, 'flump', 'method call on ::';
is "::main"->flomp, 'flimp', 'method call on ::main';
eval { ""->flomp };
like $@,
     qr/^Can't call method "flomp" without a package or object reference/,
    'method call on empty string';
is "3foo"->CORE::uc, '3FOO', '"3foo"->CORE::uc';
{ no strict; @{"3foo::ISA"} = "CORE"; }
is "3foo"->uc, '3FOO', '"3foo"->uc (autobox style!)';
Commit	Line	Data
9bfdb36e	1	#!./perl -w
92d69e20 IZ	2
	3	#
	4	# test method calls and autoloading.
	5	#
	6
4755096e GS	7	BEGIN {
4755096e GS	8	chdir 't' if -d 't';
6dc4e5ce JH	9	@INC = qw(. ../lib);
6dc4e5ce JH	10	require "test.pl";
4755096e GS	11	}
4755096e GS	12
9bfdb36e NC	13	use strict;
	14	no warnings 'once';
	15
7156e69a	16	plan(tests => 116);
92d69e20 IZ	17
	18	@A::ISA = 'B';
	19	@B::ISA = 'C';
	20
	21	sub C::d {"C::d"}
	22	sub D::d {"D::d"}
	23
567ce7b1	24	# First, some basic checks of method-calling syntax:
9bfdb36e	25	my $obj = bless [], "Pack";
567ce7b1	26	sub Pack::method { shift; join(",", "method", @_) }
9bfdb36e	27	my $mname = "method";
567ce7b1	28
6dc4e5ce JH	29	is(Pack->method("a","b","c"), "method,a,b,c");
	30	is(Pack->$mname("a","b","c"), "method,a,b,c");
	31	is(method Pack ("a","b","c"), "method,a,b,c");
	32	is((method Pack "a","b","c"), "method,a,b,c");
567ce7b1	33
6dc4e5ce JH	34	is(Pack->method(), "method");
	35	is(Pack->$mname(), "method");
	36	is(method Pack (), "method");
	37	is(Pack->method, "method");
	38	is(Pack->$mname, "method");
	39	is(method Pack, "method");
567ce7b1	40
6dc4e5ce JH	41	is($obj->method("a","b","c"), "method,a,b,c");
	42	is($obj->$mname("a","b","c"), "method,a,b,c");
	43	is((method $obj ("a","b","c")), "method,a,b,c");
	44	is((method $obj "a","b","c"), "method,a,b,c");
145eb477	45
6dc4e5ce JH	46	is($obj->method(0), "method,0");
6dc4e5ce JH	47	is($obj->method(1), "method,1");
567ce7b1	48
6dc4e5ce JH	49	is($obj->method(), "method");
	50	is($obj->$mname(), "method");
	51	is((method $obj ()), "method");
	52	is($obj->method, "method");
	53	is($obj->$mname, "method");
	54	is(method $obj, "method");
567ce7b1	55
6dc4e5ce	56	is( A->d, "C::d"); # Update hash table;
92d69e20 IZ	57
92d69e20 IZ	58	*B::d = \&D::d; # Import now.
6dc4e5ce	59	is(A->d, "D::d"); # Update hash table;
92d69e20	60
44a8e56a	61	{
fb73857a	62	local @A::ISA = qw(C); # Update hash table with split() assignment
6dc4e5ce	63	is(A->d, "C::d");
fb73857a	64	$#A::ISA = -1;
6dc4e5ce	65	is(eval { A->d } \|\| "fail", "fail");
fb73857a	66	}
6dc4e5ce	67	is(A->d, "D::d");
fb73857a	68
fb73857a	69	{
44a8e56a	70	local *B::d;
44a8e56a	71	eval 'sub B::d {"B::d1"}'; # Import now.
6dc4e5ce	72	is(A->d, "B::d1"); # Update hash table;
44a8e56a	73	undef &B::d;
6dc4e5ce	74	is((eval { A->d }, ($@ =~ /Undefined subroutine/)), 1);
44a8e56a	75	}
92d69e20	76
6dc4e5ce	77	is(A->d, "D::d"); # Back to previous state
92d69e20	78
9bfdb36e	79	eval 'no warnings "redefine"; sub B::d {"B::d2"}'; # Import now.
6dc4e5ce	80	is(A->d, "B::d2"); # Update hash table;
92d69e20 IZ	81
92d69e20 IZ	82	# What follows is hardly guarantied to work, since the names in scripts
94e1fbae JK	83	# are already linked to "pruned" globs. Say, 'undef &B::d' if it were
94e1fbae JK	84	# after 'delete $B::{d}; sub B::d {}' would reach an old subroutine.
92d69e20 IZ	85
	86	undef &B::d;
	87	delete $B::{d};
5743f2a3 FC	88	is(A->d, "C::d");
	89
	90	eval 'sub B::d {"B::d2.5"}';
	91	A->d; # Update hash table;
	92	my $glob = \delete $B::{d}; # non-void context; hang on to the glob
6dc4e5ce	93	is(A->d, "C::d"); # Update hash table;
92d69e20 IZ	94
92d69e20 IZ	95	eval 'sub B::d {"B::d3"}'; # Import now.
6dc4e5ce	96	is(A->d, "B::d3"); # Update hash table;
92d69e20 IZ	97
	98	delete $B::{d};
	99	*dummy::dummy = sub {}; # Mark as updated
6dc4e5ce	100	is(A->d, "C::d");
92d69e20 IZ	101
92d69e20 IZ	102	eval 'sub B::d {"B::d4"}'; # Import now.
6dc4e5ce	103	is(A->d, "B::d4"); # Update hash table;
92d69e20 IZ	104
92d69e20 IZ	105	delete $B::{d}; # Should work without any help too
6dc4e5ce	106	is(A->d, "C::d");
92d69e20	107
fae75791 CS	108	{
fae75791 CS	109	local *C::d;
6dc4e5ce	110	is(eval { A->d } \|\| "nope", "nope");
fae75791	111	}
6dc4e5ce	112	is(A->d, "C::d");
fae75791	113
9bfdb36e	114	A::x = A::d;
44a8e56a	115	A->d;
9bfdb36e NC	116	is(eval { A->x } \|\| "nope", "nope", 'cache should not follow synonyms');
	117
	118	my $counter;
44a8e56a	119
92d69e20 IZ	120	eval <<'EOF';
92d69e20 IZ	121	sub C::e;
09280a33	122	BEGIN { *B::e = \&C::e } # Shouldn't prevent AUTOLOAD in original pkg
92d69e20 IZ	123	sub Y::f;
	124	$counter = 0;
	125
54310121	126	@X::ISA = 'Y';
dc848c6f	127	@Y::ISA = 'B';
92d69e20 IZ	128
	129	sub B::AUTOLOAD {
	130	my $c = ++$counter;
	131	my $method = $B::AUTOLOAD;
09280a33 CS	132	my $msg = "B: In $method, $c";
	133	eval "sub $method { \$msg }";
	134	goto &$method;
92d69e20 IZ	135	}
	136	sub C::AUTOLOAD {
	137	my $c = ++$counter;
	138	my $method = $C::AUTOLOAD;
09280a33 CS	139	my $msg = "C: In $method, $c";
	140	eval "sub $method { \$msg }";
	141	goto &$method;
92d69e20 IZ	142	}
	143	EOF
	144
6dc4e5ce JH	145	is(A->e(), "C: In C::e, 1"); # We get a correct autoload
6dc4e5ce JH	146	is(A->e(), "C: In C::e, 1"); # Which sticks
92d69e20	147
6dc4e5ce JH	148	is(A->ee(), "B: In A::ee, 2"); # We get a generic autoload, method in top
6dc4e5ce JH	149	is(A->ee(), "B: In A::ee, 2"); # Which sticks
92d69e20	150
6dc4e5ce JH	151	is(Y->f(), "B: In Y::f, 3"); # We vivify a correct method
6dc4e5ce JH	152	is(Y->f(), "B: In Y::f, 3"); # Which sticks
92d69e20 IZ	153
	154	# This test is not intended to be reasonable. It is here just to let you
	155	# know that you broke some old construction. Feel free to rewrite the test
	156	# if your patch breaks it.
	157
9bfdb36e NC	158	{
9bfdb36e NC	159	no warnings 'redefine';
92d69e20	160	*B::AUTOLOAD = sub {
9bfdb36e	161	use warnings;
92d69e20	162	my $c = ++$counter;
9bfdb36e NC	163	my $method = $::AUTOLOAD;
	164	no strict 'refs';
	165	*$::AUTOLOAD = sub { "new B: In $method, $c" };
	166	goto &$::AUTOLOAD;
92d69e20	167	};
9bfdb36e	168	}
92d69e20	169
6dc4e5ce JH	170	is(A->eee(), "new B: In A::eee, 4"); # We get a correct $autoload
6dc4e5ce JH	171	is(A->eee(), "new B: In A::eee, 4"); # Which sticks
fb73857a	172
9bfdb36e NC	173	{
9bfdb36e NC	174	no strict 'refs';
33f89799	175	no warnings 'deprecated';
9bfdb36e	176	# this test added due to bug discovery (in 5.004_04, fb73857aa0bfa8ed)
33f89799 NC	177	# Possibly kill this test now that defined @::array is finally properly
33f89799 NC	178	# deprecated?
9bfdb36e NC	179	is(defined(@{"unknown_package::ISA"}) ? "defined" : "undefined", "undefined");
9bfdb36e NC	180	}
f6ec51f7 GS	181
	182	# test that failed subroutine calls don't affect method calls
	183	{
	184	package A1;
	185	sub foo { "foo" }
	186	package A2;
9bfdb36e	187	@A2::ISA = 'A1';
f6ec51f7	188	package main;
6dc4e5ce JH	189	is(A2->foo(), "foo");
	190	is(do { eval 'A2::foo()'; $@ ? 1 : 0}, 1);
	191	is(A2->foo(), "foo");
f6ec51f7	192	}
c1899e02	193
af09ea45 IK	194	## This test was totally misguided. It passed before only because the
	195	## code to determine if a package was loaded used to look for the hash
	196	## %Foo::Bar instead of the package Foo::Bar:: -- and Config.pm just
	197	## happens to export %Config.
	198	# {
6dc4e5ce	199	# is(do { use Config; eval 'Config->foo()';
af09ea45	200	# $@ =~ /^\QCan't locate object method "foo" via package "Config" at/ ? 1 : $@}, 1);
6dc4e5ce	201	# is(do { use Config; eval '$d = bless {}, "Config"; $d->foo()';
af09ea45 IK	202	# $@ =~ /^\QCan't locate object method "foo" via package "Config" at/ ? 1 : $@}, 1);
	203	# }
	204
af09ea45	205	# test error messages if method loading fails
9bfdb36e NC	206	my $e;
9bfdb36e NC	207
2f907243 NC	208	eval '$e = bless {}, "E::A"; E::A->foo()';
	209	like ($@, qr/^\QCan't locate object method "foo" via package "E::A" at/);
	210	eval '$e = bless {}, "E::B"; $e->foo()';
	211	like ($@, qr/^\QCan't locate object method "foo" via package "E::B" at/);
	212	eval 'E::C->foo()';
	213	like ($@, qr/^\QCan't locate object method "foo" via package "E::C" (perhaps /);
	214
	215	eval 'UNIVERSAL->E::D::foo()';
	216	like ($@, qr/^\QCan't locate object method "foo" via package "E::D" (perhaps /);
9bfdb36e	217	eval 'my $e = bless {}, "UNIVERSAL"; $e->E::E::foo()';
2f907243	218	like ($@, qr/^\QCan't locate object method "foo" via package "E::E" (perhaps /);
af09ea45 IK	219
af09ea45 IK	220	$e = bless {}, "E::F"; # force package to exist
2f907243 NC	221	eval 'UNIVERSAL->E::F::foo()';
	222	like ($@, qr/^\QCan't locate object method "foo" via package "E::F" at/);
	223	eval '$e = bless {}, "UNIVERSAL"; $e->E::F::foo()';
	224	like ($@, qr/^\QCan't locate object method "foo" via package "E::F" at/);
af09ea45	225
697efb9b FC	226	# SUPER:: pseudoclass
	227	@Saab::ISA = "Souper";
	228	sub Souper::method { @_ }
	229	@OtherSaab::ISA = "OtherSouper";
	230	sub OtherSouper::method { "Isidore Ropen, Draft Manager" }
	231	{
	232	my $o = bless [], "Saab";
	233	package Saab;
	234	my @ret = $o->SUPER::method('whatever');
	235	::is $ret[0], $o, 'object passed to SUPER::method';
	236	::is $ret[1], 'whatever', 'argument passed to SUPER::method';
	237	@ret = $o->SUPER'method('whatever');
	238	::is $ret[0], $o, "object passed to SUPER'method";
	239	::is $ret[1], 'whatever', "argument passed to SUPER'method";
	240	@ret = Saab->SUPER::method;
	241	::is $ret[0], 'Saab', "package name passed to SUPER::method";
	242	@ret = OtherSaab->SUPER::method;
	243	::is $ret[0], 'OtherSaab',
	244	"->SUPER::method uses current package, not invocant";
	245	}
3c104e59 FC	246	() = *SUPER::;
	247	{
	248	local our @ISA = "Souper";
	249	is eval { (main->SUPER::method)[0] }, 'main',
	250	'Mentioning *SUPER:: does not stop ->SUPER from working in main';
	251	}
0308a534 FC	252	{
	253	BEGIN {
	254	Mover:: = Mover2::;
	255	Mover2:: = foo;
	256	}
	257	package Mover;
	258	no strict;
	259	# Not our(@ISA), because the bug we are testing for interacts with an
	260	# our() bug that cancels this bug out.
	261	@ISA = 'door';
	262	sub door::dohtem { 'dohtem' }
	263	::is eval { Mover->SUPER::dohtem; }, 'dohtem',
	264	'SUPER inside moved package';
37b0b3b2 FC	265	undef *door::dohtem;
	266	*door::dohtem = sub { 'method' };
	267	::is eval { Mover->SUPER::dohtem; }, 'method',
	268	'SUPER inside moved package respects method changes';
0308a534	269	}
af09ea45 IK	270
af09ea45 IK	271	# failed method call or UNIVERSAL::can() should not autovivify packages
6dc4e5ce JH	272	is( $::{"Foo::"} \|\| "none", "none"); # sanity check 1
6dc4e5ce JH	273	is( $::{"Foo::"} \|\| "none", "none"); # sanity check 2
c1899e02	274
6dc4e5ce JH	275	is( UNIVERSAL::can("Foo", "boogie") ? "yes":"no", "no" );
6dc4e5ce JH	276	is( $::{"Foo::"} \|\| "none", "none"); # still missing?
af09ea45	277
6dc4e5ce JH	278	is( Foo->UNIVERSAL::can("boogie") ? "yes":"no", "no" );
6dc4e5ce JH	279	is( $::{"Foo::"} \|\| "none", "none"); # still missing?
af09ea45	280
6dc4e5ce JH	281	is( Foo->can("boogie") ? "yes":"no", "no" );
6dc4e5ce JH	282	is( $::{"Foo::"} \|\| "none", "none"); # still missing?
af09ea45	283
6dc4e5ce JH	284	is( eval 'Foo->boogie(); 1' ? "yes":"no", "no" );
6dc4e5ce JH	285	is( $::{"Foo::"} \|\| "none", "none"); # still missing?
af09ea45	286
6dc4e5ce	287	is(do { eval 'Foo->boogie()';
af09ea45 IK	288	$@ =~ /^\QCan't locate object method "boogie" via package "Foo" (perhaps / ? 1 : $@}, 1);
	289
	290	eval 'sub Foo::boogie { "yes, sir!" }';
6dc4e5ce JH	291	is( $::{"Foo::"} ? "ok" : "none", "ok"); # should exist now
6dc4e5ce JH	292	is( Foo->boogie(), "yes, sir!");
af09ea45 IK	293
af09ea45 IK	294	# TODO: universal.t should test NoSuchPackage->isa()/can()
c1899e02	295
f0670693 SC	296	# This is actually testing parsing of indirect objects and undefined subs
	297	# print foo("bar") where foo does not exist is not an indirect object.
	298	# print foo "bar" where foo does not exist is an indirect object.
84251760	299	eval 'sub AUTOLOAD { "ok ", shift, "\n"; }';
6dc4e5ce	300	ok(1);
af09ea45	301
a397c3d9	302	# Bug ID 20010902.002
6dc4e5ce	303	is(
a397c3d9	304	eval q[
9bfdb36e	305	my $x = 'x'; # Lexical or package variable, 5.6.1 panics.
a397c3d9 RGS	306	sub Foo::x : lvalue { $x }
	307	Foo->$x = 'ok';
	308	] \|\| $@, 'ok'
	309	);
	310
3ad83ce7 AMS	311	# An autoloaded, inherited DESTROY may be invoked differently than normal
	312	# methods, and has been known to give rise to spurious warnings
	313	# eg <200203121600.QAA11064@gizmo.fdgroup.co.uk>
	314
	315	{
	316	use warnings;
	317	my $w = '';
	318	local $SIG{__WARN__} = sub { $w = $_[0] };
	319
	320	sub AutoDest::Base::AUTOLOAD {}
	321	@AutoDest::ISA = qw(AutoDest::Base);
	322	{ my $x = bless {}, 'AutoDest'; }
	323	$w =~ s/\n//g;
6dc4e5ce	324	is($w, '');
3ad83ce7 AMS	325	}
3ad83ce7 AMS	326
e189a56d IK	327	# [ID 20020305.025] PACKAGE::SUPER doesn't work anymore
	328
	329	package main;
	330	our @X;
	331	package Amajor;
	332	sub test {
	333	push @main::X, 'Amajor', @_;
	334	}
	335	package Bminor;
	336	use base qw(Amajor);
	337	package main;
	338	sub Bminor::test {
	339	$_[0]->Bminor::SUPER::test('x', 'y');
	340	push @main::X, 'Bminor', @_;
	341	}
	342	Bminor->test('y', 'z');
	343	is("@X", "Amajor Bminor x y Bminor Bminor y z");
	344
0dae17bd GS	345	package main;
	346	for my $meth (['Bar', 'Foo::Bar'],
	347	['SUPER::Bar', 'main::SUPER::Bar'],
	348	['Xyz::SUPER::Bar', 'Xyz::SUPER::Bar'])
	349	{
	350	fresh_perl_is(<<EOT,
	351	package UNIVERSAL; sub AUTOLOAD { my \$c = shift; print "\$c \$AUTOLOAD\\n" }
	352	package Xyz;
	353	package main; Foo->$meth->[0]();
	354	EOT
	355	"Foo $meth->[1]",
	356	{ switches => [ '-w' ] },
	357	"check if UNIVERSAL::AUTOLOAD works",
	358	);
	359	}
1f15e670 NT	360
	361	# Test for #71952: crash when looking for a nonexistent destructor
	362	# Regression introduced by fbb3ee5af3d4
	363	{
	364	fresh_perl_is(<<'EOT',
	365	sub M::DESTROY; bless {}, "M" ; print "survived\n";
	366	EOT
	367	"survived",
	368	{},
	369	"no crash with a declared but missing DESTROY method"
	370	);
	371	}
	372
da6b625f FC	373	# Test for calling a method on a packag name return by a magic variable
	374	sub TIESCALAR{bless[]}
	375	sub FETCH{"main"}
	376	my $kalled;
	377	sub bolgy { ++$kalled; }
	378	tie my $a, "";
	379	$a->bolgy;
	380	is $kalled, 1, 'calling a class method via a magic variable';
f937af42 BF	381
	382	{
	383	package NulTest;
	384	sub method { 1 }
	385
	386	package main;
	387	eval {
	388	NulTest->${ \"method\0Whoops" };
	389	};
	390	like $@, qr/Can't locate object method "method\0Whoops" via package "NulTest" at/,
	391	"method lookup is nul-clean";
	392
	393	*NulTest::AUTOLOAD = sub { our $AUTOLOAD; return $AUTOLOAD };
	394
	395	like(NulTest->${ \"nul\0test" }, "nul\0test", "AUTOLOAD is nul-clean");
	396	}
2a0f5ef0 BF	397
	398
	399	{
	400	fresh_perl_is(
	401	q! sub T::DESTROY { $x = $_[0]; } bless [], "T";!,
	402	"DESTROY created new reference to dead object 'T' during global destruction.",
	403	{},
	404	"DESTROY creating a new reference to the object generates a warning."
	405	);
	406	}
71481574 FC	407
	408	# [perl #43663]
	409	{
	410	$::{"Just"} = \1;
	411	sub Just::a_japh { return "$_[0] another Perl hacker," }
	412	is eval { "Just"->a_japh }, "Just another Perl hacker,",
	413	'constants do not interfere with class methods';
	414	}
0865059d FC	415
	416	# [perl #109264]
	417	{
	418	no strict 'vars';
	419	sub bliggles { 1 }
	420	sub lbiggles :lvalue { index "foo", "f" }
	421	ok eval { main->bliggles(my($foo,$bar)) },
	422	'foo->bar(my($foo,$bar)) is not called in lvalue context';
	423	ok eval { main->bliggles(our($foo,$bar)) },
	424	'foo->bar(our($foo,$bar)) is not called in lvalue context';
	425	ok eval { main->bliggles(local($foo,$bar)) },
	426	'foo->bar(local($foo,$bar)) is not called in lvalue context';
	427	ok eval { () = main->lbiggles(my($foo,$bar)); 1 },
	428	'foo->lv(my($foo,$bar)) is not called in lvalue context';
	429	ok eval { () = main->lbiggles(our($foo,$bar)); 1 },
	430	'foo->lv(our($foo,$bar)) is not called in lvalue context';
	431	ok eval { () = main->lbiggles(local($foo,$bar)); 1 },
	432	'foo->lv(local($foo,$bar)) is not called in lvalue context';
	433	}
544b72e2 BF	434
	435	{
	436	# AUTOLOAD and DESTROY can be declared without a leading sub,
	437	# like BEGIN and friends.
	438	package NoSub;
	439
	440	eval 'AUTOLOAD { our $AUTOLOAD; return $AUTOLOAD }';
	441	::ok( !$@, "AUTOLOAD without a leading sub is legal" );
	442
	443	eval "DESTROY { ::pass( q!DESTROY without a leading sub is legal and gets called! ) }";
	444	{
	445	::ok( NoSub->can("AUTOLOAD"), "...and sets up an AUTOLOAD normally" );
	446	::is( eval { NoSub->bluh }, "NoSub::bluh", "...which works as expected" );
	447	}
	448	{ bless {}, "NoSub"; }
	449	}
f226e9be FC	450
	451	eval { () = 3; new {} };
	452	like $@,
	453	qr/^Can't call method "new" without a package or object reference/,
	454	'Err msg from new{} when stack contains a number';
	455	eval { () = "foo"; new {} };
	456	like $@,
	457	qr/^Can't call method "new" without a package or object reference/,
	458	'Err msg from new{} when stack contains a word';
	459	eval { () = undef; new {} };
	460	like $@,
	461	qr/^Can't call method "new" without a package or object reference/,
	462	'Err msg from new{} when stack contains undef';
bfde49d4 FC	463
	464	package egakacp {
	465	our @ISA = 'ASI';
	466	sub ASI::m { shift; "@_" };
	467	my @a = (bless([]), 'arg');
	468	my $r = SUPER::m{@a};
	469	::is $r, 'arg', 'method{@array}';
	470	$r = SUPER::m{}@a;
	471	::is $r, 'arg', 'method{}@array';
	472	$r = SUPER::m{@a}"b";
	473	::is $r, 'arg b', 'method{@array}$more_args';
	474	}
aae43805 FC	475
	476	# [perl #114924] SUPER->method
	477	@SUPER::ISA = "SUPPER";
	478	sub SUPPER::foo { "supper" }
	479	is "SUPER"->foo, 'supper', 'SUPER->method';
7156e69a FC	480
	481	sub flomp { "flimp" }
	482	sub main::::flomp { "flump" }
	483	is "::"->flomp, 'flump', 'method call on ::';
	484	is "::main"->flomp, 'flimp', 'method call on ::main';
	485	eval { ""->flomp };
	486	like $@,
	487	qr/^Can't call method "flomp" without a package or object reference/,
	488	'method call on empty string';
	489	is "3foo"->CORE::uc, '3FOO', '"3foo"->CORE::uc';
	490	{ no strict; @{"3foo::ISA"} = "CORE"; }
	491	is "3foo"->uc, '3FOO', '"3foo"->uc (autobox style!)';