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|
#!/usr/bin/perl
use v5.18;
use warnings;
use Test2::V0;
use Scalar::Util qw( reftype );
use Object::Pad 0.800;
class Point {
field $x = 0;
field $y = 0;
BUILD {
( $x, $y ) = @_;
}
method where { sprintf "(%d,%d)", $x, $y }
}
{
my $p = Point->new( 10, 20 );
is( $p->where, "(10,20)", '$p->where' );
}
my @buildargs;
my @build;
class WithBuildargs {
sub BUILDARGS {
@buildargs = @_;
return ( 4, 5, 6 );
}
BUILD {
@build = @_;
}
}
{
WithBuildargs->new( 1, 2, 3 );
is( \@buildargs, [qw( WithBuildargs 1 2 3 )], '@_ to BUILDARGS' );
is( \@build, [qw( 4 5 6 )], '@_ to BUILD' );
}
{
my @called;
my $class_in_ADJUST;
class WithAdjust {
BUILD {
push @called, "BUILD";
}
ADJUST {
push @called, "ADJUST";
$class_in_ADJUST = __CLASS__;
}
}
WithAdjust->new;
is( \@called, [qw( BUILD ADJUST )], 'ADJUST invoked after BUILD' );
is( $class_in_ADJUST, "WithAdjust", '__CLASS__ during ADJUST phaser' )
}
{
my $paramvalue;
class StrictParams :strict(params) {
ADJUSTPARAMS {
my ($href) = @_;
$paramvalue = delete $href->{param};
}
}
StrictParams->new( param => "thevalue" );
is( $paramvalue, "thevalue", 'ADJUSTPARAMS captured the value' );
ok( !defined eval { StrictParams->new( unknown => "name" ) },
':strict(params) complains about unrecognised param' );
like( $@, qr/^Unrecognised parameters for StrictParams constructor: 'unknown' at /,
'message from unrecognised param to constructor' );
}
# RT140314
{
class NoParamsAtAll :strict(params) { }
ok( !defined eval { NoParamsAtAll->new( unknown => 1 ) },
':strict(params) complains even with no ADJUST phaser' );
like( $@, qr/^Unrecognised parameters for NoParamsAtAll constructor: 'unknown' at /,
'message from unrecognised param to constructor' );
}
{
my $newarg_destroyed;
my $buildargs_result_destroyed;
package DestroyWatch {
sub new { bless [ $_[1] ], $_[0] }
sub DESTROY { ${ $_[0][0] }++ }
}
class RefcountTest {
sub BUILDARGS {
return DestroyWatch->new( \$buildargs_result_destroyed )
}
}
RefcountTest->new( DestroyWatch->new( \$newarg_destroyed ) );
is( $newarg_destroyed, 1, 'argument to ->new destroyed' );
is( $buildargs_result_destroyed, 1, 'result of BUILDARGS destroyed' );
}
# Create a base class with HASH representation
{
class NativelyHash :repr(HASH) {
field $field = "value";
method field { $field }
}
my $o = NativelyHash->new;
is( reftype $o, "HASH", 'NativelyHash is natively a HASH reference' );
is( $o->field, "value", 'native HASH objects still support fields' );
}
# Create a base class with keys representation
{
class NativelyHashWithKeys :repr(keys) {
field $s = "value";
field @a = ( 12, 34 );
field %h;
method fields { $s, \@a, \%h }
}
my $o = NativelyHashWithKeys->new;
is( reftype $o, "HASH", 'NativelyHashWithKeys is natively a HASH reference' );
is( [ $o->fields ], [ "value", [ 12, 34 ], {} ],
':repr(keys) objects still support fields' );
is( $o->{'NativelyHashWithKeys/$s'}, "value",
':repr(keys) object fields directly accessible' );
is( $o,
{ 'NativelyHashWithKeys/$s' => "value",
'NativelyHashWithKeys/@a' => [ 12, 34 ],
'NativelyHashWithKeys/%h' => {},
},
':repr(keys) object entirely' );
}
# Subclasses without BUILD shouldn't double-invoke superclass
{
my $BUILD_invoked;
class One {
BUILD { $BUILD_invoked++ }
}
class Two {
inherit One;
}
Two->new;
is( $BUILD_invoked, 1, 'One::BUILD invoked only once for Two->new' );
}
done_testing;
|
