moose | 易学教程

how to access variables in imported module in local scope in perl?

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问题 I am stuck while creating a perl Moose module. I have a global pm module. package XYZ; require Exporter; our @ISA = qw(Exporter); ## EDIT missed this line our @EXPORT_OK = qw($VAR); my $VAR1 = 1; our $VAR = {'XYZ' => $VAR1}; 1; I want to get $VAR in a Moose module I'm creating package THIS; use Moose; use YAML::XS; sub get_all_blocks{ my ($self) = @_; require $self->get_pkg(); # this returns the full path+name of the above package # i cannot use use lib+use since the get_pkg starts

how to access variables in imported module in local scope in perl?

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为什么现代的Perl默认情况下会避免使用UTF-8？

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问题： I wonder why most modern solutions built using Perl don't enable UTF-8 by default. 我想知道为什么大多数使用Perl构建的现代解决方案默认情况下都不启用 UTF-8 。 I understand there are many legacy problems for core Perl scripts, where it may break things. 我知道核心Perl脚本有很多遗留问题，可能会破坏事情。 But, from my point of view, in the 21 st century, big new projects (or projects with a big perspective) should make their software UTF-8 proof from scratch. 但是，从我的角度来看，在21 世纪，大型新项目（或具有大的方面讲项目）应该从头开始他们的软件UTF-8的证明。 Still I don't see it happening. 我仍然看不到它的发生。 For example, Moose enables strict and warnings, but not Unicode . 例如， Moose 启用严格和警告，但不启用

BT下载开源播放工具- Moose

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Moose是一款集合种子下载，视频播放功能于一体的开源软件。遵守MIT开源协议。支持视频字幕匹配，画中画等功能。多系统支持包括MacOS 与 Linux 系统。功能特色：流媒体：无需等待 BT 下载完成。只要torrent开始下载，就可以同时流媒体视频播放。自动加载字幕：如果torrent中存在字幕，会自动加载字幕。 VLC：只要开始下载，就可以在VLC中打开任何视频文件。外部应用：所有文件都可以在设备上的默认应用中打开。主题：偏好面板中可以设置任何颜色，UI使用不透明设计。投放：可以将视频或音频投射到任何支持chromecast或DLNA的设备上。音乐：支持播放音频。 GitHub 仓库挂件 WordPress 插件 ritz078 / moose 🦌 An application to stream, cast and download torrents. https://getmoose.in 520 64 Download ZIP 相关文件下载地址本地直接下载来源： oschina 链接： https://my.oschina.net/u/4314826/blog/4387259

“Can't modify non-lvalue subroutine call” when adding Moose attribute from method

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问题 I am battling with Moose these days, and I ran into the following problem. I create an object that has many required attributes on its creation. However, I wish to add attributes to it when a method is called. More specifically, I'd like to add the arguments for that method as a hash attribute. I'd like to do this so that subsequent calls to other methods know that the earlier method has already been called, with said parameters. Example, but fictional code: package Banana; use Moose; has [

How do you replace a method of a Moose object at runtime?

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问题 Is it possible to replace a method of a Moose object at runtime ? By looking at the source code of Class::MOP::Method (which Moose::Meta::Method inherits from) I concluded that by doing $method->{body} = sub{ my stuff } I would be able to replace at runtime a method of an object. I can get the method using $object->meta->find_method_by_name(<method_name>); However, this didn't quite work out. Is it conceivable to modify methods at run time? And, what is the way to do it with Moose? 回答1: Moose

How does one get a method reference when using Moose

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问题 I'm trying to figure out how to get a method code reference using Moose. Below is an example of what I'm trying to do: use Modern::Perl; package Storage; use Moose; sub batch_store { my ($self, $data) = @_; ... store $data ... } package Parser; use Moose; has 'generic_batch_store' => ( isa => 'CodeRef' ); sub parse { my $self = shift; my @buf; ... incredibly complex parsing code ... $self->generic_batch_store(\@buf); } package main; $s = Storage->new; $p = Parser->new; $p->generic_batch_store

Is checking Perl function arguments worth it?

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问题 There's a lot of buzz about MooseX::Method::Signatures and even before that, modules such as Params::Validate that are designed to type check every argument to methods or functions. I'm considering using the former for all my future Perl code, both personal and at my place of work. But I'm not sure if it's worth the effort. I'm thinking of all the Perl code I've seen (and written) before that performs no such checking. I very rarely see a module do this: my ($a, $b) = @_; defined $a or croak

Can anybody please explain (my $self = shift) in Perl

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问题 I'm having a really hard time understanding the intersection of OO Perl and my $self = shift; The documentation on these individual elements is great, but none of them that I've found touch on how they work together. I've been using Moose to make modules with attributes, and of course, it's useful to reference a module's attribute within said module. I've been told over and over again to use my $self = shift; within a subroutine to assign the module's attributes to that variable. This makes

How to have Moose return a child class instance instead of its own class, for polymorphism

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问题 I want to create a generic class, whose builder would not return an instance of this generic class, but an instance of a dedicated child class. As Moose does automatic object building, I do not get to understand if this something possible, and how to create a Moose class with Moose syntax and having this behaviour. e.g.: The user asks: $file = Repository->new(uri=>'sftp://blabla') .... and is returned an `Repository::_Sftp`` instance User would use $file as if it is a Repository instance,