indirect - Lexically warn about using the indirect object syntax.
VERSION
- Version 0.16
+ Version 0.19
SYNOPSIS
# In a script
True iff the module could have been built with thread-safety features
enabled.
+ "I_FORKSAFE"
+ True iff this module could have been built with fork-safety features
+ enabled. This will always be true except on Windows where it's false for
+ perl 5.10.0 and below .
+
DIAGNOSTICS
"Indirect call of method "%s" on object "%s" at %s line %d."
The default warning/exception message thrown when an indirect call on an
The default warning/exception message thrown when an indirect call on a
block is found.
+ENVIRONMENT
+ "PERL_INDIRECT_PM_DISABLE"
+ If this environment variable is set to true when the pragma is used for
+ the first time, the XS code won't be loaded and, although the 'indirect'
+ lexical hint will be set to true in the scope of use, the pragma itself
+ won't do anything. In this case, the pragma will always be considered to
+ be thread-safe, and as such "I_THREADSAFE" will be true. This is useful
+ for disabling "indirect" in production environments.
+
+ Note that clearing this variable after "indirect" was loaded has no
+ effect. If you want to reenable the pragma later, you also need to
+ reload it by deleting the 'indirect.pm' entry from %INC.
+
CAVEATS
The implementation was tweaked to work around several limitations of
vanilla "perl" pragmas : it's thread safe, and doesn't suffer from a
is due to a shortcoming in the way perl handles the hints hash, which is
addressed in perl 5.10.
+ The search for indirect method calls happens before constant folding.
+ Hence "my $x = new Class if 0" will be caught.
+
DEPENDENCIES
perl 5.8.