path: root/contrib/perl5/t/pragma/strict-subs

Check strict subs functionality

__END__

# no strict, should build & run ok.
Fred ;
my $fred ;
$b = "fred" ;
$a = $$b ;
EXPECT

########

use strict qw(refs vars);
Fred ;
EXPECT

########

use strict ;
no strict 'subs' ;
Fred ;
EXPECT

########

# strict subs - error
use strict 'subs' ;
Fred ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at - line 4.
Execution of - aborted due to compilation errors.
########

# strict subs - error
use strict 'subs' ;
my @a = (A..Z);
EXPECT
Bareword "Z" not allowed while "strict subs" in use at - line 4.
Bareword "A" not allowed while "strict subs" in use at - line 4.
Execution of - aborted due to compilation errors.
########

# strict subs - error
use strict 'subs' ;
my $a = (B..Y);
EXPECT
Bareword "Y" not allowed while "strict subs" in use at - line 4.
Bareword "B" not allowed while "strict subs" in use at - line 4.
Execution of - aborted due to compilation errors.
########

# strict subs - error
use strict ;
Fred ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at - line 4.
Execution of - aborted due to compilation errors.
########

# strict subs - no error
use strict 'subs' ;
sub Fred {}
Fred ;
EXPECT

########

# Check compile time scope of strict subs pragma
use strict 'subs' ;
{
    no strict ;
    my $a = Fred ;
}
my $a = Fred ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at - line 8.
Execution of - aborted due to compilation errors.
########

# Check compile time scope of strict subs pragma
no strict;
{
    use strict 'subs' ;
    my $a = Fred ;
}
my $a = Fred ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at - line 6.
Execution of - aborted due to compilation errors.
########

# Check compile time scope of strict vars pragma
use strict 'vars' ;
{
    no strict ;
    $joe = 1 ;
}
$joe = 1 ;
EXPECT
Variable "$joe" is not imported at - line 8.
Global symbol "$joe" requires explicit package name at - line 8.
Execution of - aborted due to compilation errors.
########

# Check compile time scope of strict vars pragma
no strict;
{
    use strict 'vars' ;
    $joe = 1 ;
}
$joe = 1 ;
EXPECT
Global symbol "$joe" requires explicit package name at - line 6.
Execution of - aborted due to compilation errors.
########

# Check runtime scope of strict refs pragma
use strict 'refs';
my $fred ;
my $b = "fred" ;
{
    no strict ;
    my $a = $$b ;
}
my $a = $$b ;
EXPECT
Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 10.
########

# Check runtime scope of strict refs pragma
no strict ;
my $fred ;
my $b = "fred" ;
{
    use strict 'refs' ;
    my $a = $$b ;
}
my $a = $$b ;
EXPECT
Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 8.
########

# Check runtime scope of strict refs pragma
no strict ;
my $fred ;
my $b = "fred" ;
{
    use strict 'refs' ;
    $a = sub { my $c = $$b ; }
}
&$a ;
EXPECT
Can't use string ("fred") as a SCALAR ref while "strict refs" in use at - line 8.
########

use strict 'subs' ;
my $a = Fred ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at - line 3.
Execution of - aborted due to compilation errors.
########

--FILE-- abc
my $a = Fred ;
1;
--FILE-- 
use strict 'subs' ;
require "./abc";
EXPECT

########

--FILE-- abc
use strict 'subs' ;
1;
--FILE-- 
require "./abc";
my $a = Fred ;
EXPECT

########

--FILE-- abc
use strict 'subs' ;
my $a = Fred ;
1;
--FILE-- 
Fred ;
require "./abc";
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at ./abc line 2.
Compilation failed in require at - line 2.
########

--FILE-- abc.pm
use strict 'subs' ;
my $a = Fred ;
1;
--FILE-- 
Fred ;
use abc;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at abc.pm line 2.
Compilation failed in require at - line 2.
BEGIN failed--compilation aborted at - line 2.
########

# Check scope of pragma with eval
no strict ;
eval {
    my $a = Fred ;
};
print STDERR $@;
my $a = Fred ;
EXPECT

########

# Check scope of pragma with eval
no strict ;
eval {
    use strict 'subs' ;
    my $a = Fred ;
};
print STDERR $@;
my $a = Fred ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at - line 6.
Execution of - aborted due to compilation errors.
########

# Check scope of pragma with eval
use strict 'subs' ;
eval {
    my $a = Fred ;
};
print STDERR $@;
my $a = Fred ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at - line 5.
Bareword "Fred" not allowed while "strict subs" in use at - line 8.
Execution of - aborted due to compilation errors.
########

# Check scope of pragma with eval
use strict 'subs' ;
eval {
    no strict ;
    my $a = Fred ;
};
print STDERR $@;
my $a = Fred ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at - line 9.
Execution of - aborted due to compilation errors.
########

# Check scope of pragma with eval
no strict ;
eval '
    Fred ;
'; print STDERR $@ ;
Fred ;
EXPECT

########

# Check scope of pragma with eval
no strict ;
eval q[ 
    use strict 'subs' ;
    Fred ;
]; print STDERR $@;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at (eval 1) line 3.
########

# Check scope of pragma with eval
use strict 'subs' ;
eval '
    Fred ;
'; print STDERR $@ ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at (eval 1) line 2.
########

# Check scope of pragma with eval
use strict 'subs' ;
eval '
    no strict ;
    my $a = Fred ;
'; print STDERR $@;
my $a = Fred ;
EXPECT
Bareword "Fred" not allowed while "strict subs" in use at - line 8.
Execution of - aborted due to compilation errors.
########

# see if Foo->Bar(...) etc work under strictures
use strict;
package Foo; sub Bar { print "@_\n" }
Foo->Bar('a',1);
Bar Foo ('b',2);
Foo->Bar(qw/c 3/);
Bar Foo (qw/d 4/);
Foo::->Bar('A',1);
Bar Foo:: ('B',2);
Foo::->Bar(qw/C 3/);
Bar Foo:: (qw/D 4/);
EXPECT
Foo a 1
Foo b 2
Foo c 3
Foo d 4
Foo A 1
Foo B 2
Foo C 3
Foo D 4