perl-patterns

原文涵盖的主题

• Modern Perl Development Patterns
• When to Activate
• How It Works
• Core Principles
• 1. Use v5.36 Pragma
• 2. Subroutine Signatures
• 3. Context Sensitivity
• 4. Postfix Dereferencing

Idiomatic Perl 5.36+ patterns and best practices for building robust, maintainable applications. Writing new Perl code or modules Reviewing Perl code for idiom compliance Refactoring legacy Perl to modern standards Designing Perl module architecture Migrating pre-5.36 code to modern Perl Apply these patterns as a bias toward modern Perl 5.36+ defaults: signatures, explicit modules, focused error handling, and testable boundaries. The examples below are meant to be copied as starting points, then tightened for the actual app, dependency stack, and deployment model in front of you. A single use v5.36 replaces the old boilerplate and enables strict, warnings, and subroutine signatures. Use signatures for clarity and automatic arity checking. Understand scalar vs list context — a core Perl concept. Use postfix dereference syntax for readability with nested structures. Infix type-check — replaces blessed($o) && $o->isa('X'). Prefer Moo for lightweight, modern OO. Use Moose only when its metaprotocol is needed. | Legacy Pattern | Modern Replacement | |---|---| | use strict; use warnings; | use v5.36; | | my ($x, $y) = @; | sub foo($x, $y) { ... } | | @{ $ref } | $ref->@ | | %{ $ref } | $

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