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.IX Title "Kavorka::Manual::PrototypeAndAttributes 3pm"
.TH Kavorka::Manual::PrototypeAndAttributes 3pm "2019-01-17" "perl v5.28.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Kavorka::Manual::PrototypeAndAttributes \- the more rarely used features of Perl subroutines
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
.SS "The Prototype"
.IX Subsection "The Prototype"
Like with the sub keyword, a prototype may be provided for
functions. Method dispatch ignores this, so it's only likely to be
useful for \f(CW\*(C`fun\*(C'\fR, and even then, rarely.
.PP
Like Function::Parameters, Kavorka uses \f(CW\*(C`:(...)\*(C'\fR to indicate
a prototype. This avoids ambiguity between signatures, prototypes and
attributes.
.PP
For compatibility with Perl 5.20, the special attribute
\&\f(CW\*(C`:prototype(...)\*(C'\fR is supported as an alternative mechanism for
expressing prototypes.
.SS "The Attributes"
.IX Subsection "The Attributes"
Attributes are parsed as per \*(L"Subroutine Attributes\*(R" in perlsub.
.PP
For anonymous functions, some attributes (e.g. \f(CW\*(C`:lvalue\*(C'\fR) may be
applied too late to take effect. Attributes should mostly work for
named functions though.
.SH "BUGS"
.IX Header "BUGS"
Please report any bugs to
<http://rt.cpan.org/Dist/Display.html?Queue=Kavorka>.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Kavorka::Manual.
.SH "AUTHOR"
.IX Header "AUTHOR"
Toby Inkster <tobyink@cpan.org>.
.SH "COPYRIGHT AND LICENCE"
.IX Header "COPYRIGHT AND LICENCE"
This software is copyright (c) 2013\-2014, 2017 by Toby Inkster.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
.SH "DISCLAIMER OF WARRANTIES"
.IX Header "DISCLAIMER OF WARRANTIES"
\&\s-1THIS PACKAGE IS PROVIDED \*(L"AS IS\*(R" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.\s0