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.IX Title "Perl::Critic::Policy::Freenode::IndirectObjectNotation 3pm"
.TH Perl::Critic::Policy::Freenode::IndirectObjectNotation 3pm "2020-12-26" "perl v5.32.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Perl::Critic::Policy::Freenode::IndirectObjectNotation \- Don't call methods
indirectly
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Perl allows a form of method call where the method name is first, followed by
the invocant (class or object to call the method on), then the argument list.
This is an unfortunate legacy syntax that should no longer be used. See
\&\*(L"Indirect Object Syntax\*(R" in perlobj and \*(L"\s-1REFERENCES\*(R"\s0 in indirect for more
information.
.PP
.Vb 2
\& my $obj = new My::Class @args;   # not ok
\& my $obj = My::Class\->new(@args); # ok
.Ve
.PP
It is difficult to detect indirect object notation by static analysis, so this
policy only forbids the \f(CW\*(C`new\*(C'\fR method call by default, as it is highly unlikely
to be the name of a standard subroutine call. Consider using the indirect
pragma to cause the code to warn or die when indirect object notation is used.
.PP
This policy is a subclass of the Perl::Critic core policy
Perl::Critic::Policy::Objects::ProhibitIndirectSyntax, and performs the same
function but in the \f(CW\*(C`freenode\*(C'\fR theme.
.SH "AFFILIATION"
.IX Header "AFFILIATION"
This policy is part of Perl::Critic::Freenode.
.SH "CONFIGURATION"
.IX Header "CONFIGURATION"
This policy can be configured, in the same way as its parent policy
Perl::Critic::Policy::Objects::ProhibitIndirectSyntax, to attempt to forbid
additional method names from being called indirectly. Be aware this may lead to
false positives as it is difficult to detect indirect object notation by static
analysis. The \f(CW\*(C`new\*(C'\fR subroutine is always forbidden in addition to these.
.PP
.Vb 2
\& [Freenode::IndirectObjectNotation]
\& forbid = create destroy
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
Dan Book, \f(CW\*(C`dbook@cpan.org\*(C'\fR
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright 2015, Dan Book.
.PP
This library is free software; you may redistribute it and/or modify it under
the terms of the Artistic License version 2.0.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Perl::Critic, indirect