Perl 声明如何从属性默认方法返回ArrayRef?
我意识到这可能是我对perl或Moose某些部分的基本误解,但我似乎无法从Perl 声明如何从属性默认方法返回ArrayRef?,perl,moose,Perl,Moose,我意识到这可能是我对perl或Moose某些部分的基本误解,但我似乎无法从默认方法返回ArrayRef: has '_directories' => ( is => 'ro', isa => 'ArrayRef[Str]', lazy => 1, init_arg => undef, default => method {return File::Spec->splitdir($self->relat
默认方法返回ArrayRef:
has '_directories' => (
is => 'ro',
isa => 'ArrayRef[Str]',
lazy => 1,
init_arg => undef,
default => method {return File::Spec->splitdir($self->relativeDirectory)});
给出:
Attribute (_directories) does not pass the type constraint because:
Validation failed for 'ArrayRef[Str]' with value 3
如何排序?返回列表,而不是arrayref。您可以使用[]
构造函数从列表构造arrayref:
default => method {return [ File::Spec->splitdir($self->relativeDirectory) ] },