indirect - Lexically warn about using the indirect object syntax.
VERSION
- Version 0.19
+ Version 0.21
SYNOPSIS
# In a script
DESCRIPTION
When enabled (or disabled as some may prefer to say, since you actually
turn it on by calling "no indirect"), this pragma warns about indirect
- object syntax constructs that may have slipped into your code. This
- syntax is now considered harmful, since its parsing has many quirks and
- its use is error prone (when "swoosh" isn't defined, "swoosh $x"
- actually compiles to "$x->swoosh").
+ object syntax constructs that may have slipped into your code.
+
+ This syntax is now considered harmful, since its parsing has many quirks
+ and its use is error prone (when "swoosh" isn't defined, "swoosh $x"
+ actually compiles to "$x->swoosh"). In
+ <http://www.shadowcat.co.uk/blog/matt-s-trout/indirect-but-still-fatal>,
+ Matt S. Trout gives an example of an indirect construct that can cause a
+ particularly bewildering error.
It currently does not warn for core functions ("print", "say", "exec" or
"system"). This may change in the future, or may be added as optional
Hence "my $x = new Class if 0" will be caught.
DEPENDENCIES
- perl 5.8.
+ perl 5.8.1.
XSLoader (standard since perl 5.006).
reporting issues.
COPYRIGHT & LICENSE
- Copyright 2008-2009 Vincent Pit, all rights reserved.
+ Copyright 2008,2009,2010 Vincent Pit, all rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.