Perl::Critic::Policy::ControlStructures::ProhibitLabelsWithSpecialBlockNames(3pm)

Perl::Critic::Policy::ControlStructures::ProhibitLabelsWithSpecialBlockNames3pm

Don't use labels that are the same as the special block names.

Affiliation

This Policy is part of the core Perl::Critic distribution.

Overview

When using one of the special Perl blocks "BEGIN", "END", "CHECK", "INIT", and "UNITCHECK", it is easy to mistakenly add a colon to the end of the block name. E.g.:

    # a BEGIN block that gets executed at compile time.
    BEGIN { <...code...> }
    # an ordinary labeled block that gets executed at run time.
    BEGIN: { <...code...> }

The labels "BEGIN:", "END:", etc. are probably errors. This policy prohibits the special Perl block names from being used as labels.

Configuration

This Policy is not configurable except for the standard options.

Acknowledgment

Randy Lauen for identifying the problem.

Releases

10 releases since Debian 5.0 (Lenny); the text changed 9 times.

  1. 5.0
  2. 6.0
  3. 7
  4. 8
  5. 9
  6. 10
  7. 11
  8. 12
  9. 13
  10. Arch

Author

Mike O'Regan

From perl-perl-critic 1.156-3 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.