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|
use strict;
use warnings;
use Devel::Declare ();
{
package MethodHandlers;
use strict;
use warnings;
use Devel::Declare::Context::Simple;
# undef -> my ($self) = shift;
# '' -> my ($self) = @_;
# '$foo' -> my ($self, $foo) = @_;
sub make_proto_unwrap {
my ($proto) = @_;
my $inject = 'my ($self';
if (defined $proto) {
$proto =~ s/[\r\n\s]+/ /g;
$inject .= ", $proto" if length($proto);
$inject .= ') = @_; ';
} else {
$inject .= ') = shift;';
}
return $inject;
}
sub parser {
my $ctx = Devel::Declare::Context::Simple->new->init(@_);
$ctx->skip_declarator;
my $name = $ctx->strip_name;
my $proto = $ctx->strip_proto;
# Check for an 'is' to test strip_name_and_args
my $word = $ctx->strip_name;
my $traits;
if (defined($word) && ($word eq 'is')) {
$traits = $ctx->strip_names_and_args;
}
my $inject = make_proto_unwrap($proto);
if (defined $name) {
$inject = $ctx->scope_injector_call().$inject;
}
$ctx->inject_if_block($inject);
if (defined $name) {
$name = join('::', Devel::Declare::get_curstash_name(), $name)
unless ($name =~ /::/);
# for trait testing we're just interested in the trait parse result, not
# the method body and its injections
$ctx->shadow(sub (&) {
no strict 'refs';
*{$name} = $traits
? sub { $traits }
: shift;
});
} else {
$ctx->shadow(sub (&) { shift });
}
}
}
my ($test_method1, $test_method2, @test_list);
{
package DeclareTest;
sub method (&);
BEGIN {
Devel::Declare->setup_for(
__PACKAGE__,
{ method => { const => \&MethodHandlers::parser } }
);
}
method new {
my $class = ref $self || $self;
return bless({ @_ }, $class);
}
method foo ($foo) {
return (ref $self).': Foo: '.$foo;
}
method has_many_traits() is (Trait1, Trait2(foo => 'bar'), Baz(one, two)) {
return 1;
}
method has_a_trait() is Foo1 {
return 1;
}
method upgrade(){ # no spaces to make case pathological
bless($self, 'DeclareTest2');
}
method DeclareTest2::bar () {
return 'DeclareTest2: bar';
}
$test_method1 = method {
return join(', ', $self->{attr}, $_[1]);
};
$test_method2 = method ($what) {
return join(', ', ref $self, $what);
};
method main () { return "main"; }
@test_list = (method { 1 }, sub { 2 }, method () { 3 }, sub { 4 });
method multiline1(
$foo
)
{
return "$foo$foo";
}
method multiline2(
$foo, $bar
) { return "$foo $bar"; }
method
multiline3 ($foo,
$bar) {
return "$bar $foo";
}
}
use Test::More;
my $o = DeclareTest->new(attr => "value");
isa_ok($o, 'DeclareTest');
is($o->{attr}, 'value', '@_ args ok');
is($o->foo('yay'), 'DeclareTest: Foo: yay', 'method with argument ok');
is($o->main, 'main', 'declaration of package named method ok');
is($o->multiline1(3), '33', 'multiline1 proto ok');
is($o->multiline2(1,2), '1 2', 'multiline2 proto ok');
is($o->multiline3(4,5), '5 4', 'multiline3 proto ok');
is_deeply(
$o->has_many_traits,
[['Trait1', undef], ['Trait2', q[foo => 'bar']], ['Baz', 'one, two']],
'extracting multiple traits',
);
is_deeply(
$o->has_a_trait,
[['Foo1', undef]],
'extract one trait without arguments',
);
$o->upgrade;
isa_ok($o, 'DeclareTest2');
is($o->bar, 'DeclareTest2: bar', 'absolute method declaration ok');
is($o->$test_method1('no', 'yes'), 'value, yes', 'anon method with @_ ok');
is($o->$test_method2('this'), 'DeclareTest2, this', 'anon method with proto ok');
is_deeply([ map { $_->() } @test_list ], [ 1, 2, 3, 4], 'binding ok');
done_testing;
|
