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use v6;
use Test;
plan 17;
# L<S06/Perl5ish subroutine declarations/You can declare a sub without
# parameter list>
#
# TODO: if there is a better way to compare signatures: don't rely on .perl
sub simple { 'simple' }
is &simple.signature.perl, ':()', 'signature is :() when none is specified';
is simple(), 'simple', 'can call sub with no signature specified';
dies-ok { EVAL('simple( :golf<hotel> )') },
'sub with no signature dies when given a named argument';
dies-ok { EVAL("simple( 'india' )") },
'sub with no signature dies when given positional argument';
sub positional { @_[0] }
is &positional.signature.perl, ':(*@_)',
'signature is :(Mu *@_) when none is specified and @_ is used, RT #125486';
is positional( 'alpha' ), 'alpha', 'can call sub with positional param used';
nok positional().defined, 'sub using positional param called with no params';
dies-ok { positional( :victor<whiskey> ) },
'sub using positional param called with named param';
sub named { %_<bravo> }
is &named.signature.perl, ':(*%_)',
'signature is :(Mu *%_) when none is specified and %_ is used, RT #125486';
is named( :bravo<charlie> ), 'charlie', 'can call sub with named param used';
nok named().defined, 'named param sub is callable with no params';
dies-ok { named( 'zulu' ) }, 'named param sub dies with positional param';
sub both { @_[1] ~ %_<delta> }
is &both.signature.perl, ':(*@_, *%_)',
'signature is :(Mu *@_, Mu *%_) when none is specified and @_ and %_ are used, RT #125486';
is both( 'x', :delta<echo>, 'foxtrot' ), 'foxtrotecho',
'can call sub with both named and positional params used';
is both(), '',
'sub using both named and position params works with no params';
# RT #71112
{
sub rt71112 { @_[0] = 'bug' }
my $tender = 'sanity';
#?rakudo todo 'RT #71112: Cannot assign to readonly variable.'
dies-ok { rt71112( $tender ) }, 'Sub that tries to modify @_ dies';
is $tender, 'sanity', 'The variable passed is unchanged.';
}
# vim: ft=perl6
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