Type::Parser(3)

NAME
Type::Parser - parse type constraint strings

SYNOPSIS
 use v5.10;
 use strict;
 use warnings;

 use Type::Parser qw( eval_type );
 use Type::Registry;

 my $reg = Type::Registry->for_me;
 $reg->add_types("Types::Standard");

 my $type = eval_type("Int | ArrayRef[Int]", $reg);

 $type->check(10);        # true
 $type->check([1..4]);    # true
 $type->check({foo=>1});  # false

STATUS
This module is covered by the Type-Tiny stability policy.

DESCRIPTION
Generally speaking, you probably don't want to be using this module directly. Instead use the "lookup" method from Type::Registry which wraps it.

  Functions

"parse($string)"
    Parse the type constraint string into something like an AST.

    If called in list context, also returns any "tail" found on the original string.

"extract_type($string, $registry)"
    Compile a type constraint string into a Type::Tiny object.

    If called in list context, also returns any "tail" found on the original string.

"eval_type($string, $registry)"
    Compile a type constraint string into a Type::Tiny object.

    Throws an error if the "tail" contains any non-whitespace character.

  Constants
The following constants correspond to values returned by "$token->type".

"TYPE"
"QUOTELIKE"
"STRING"
"HEXNUM"
"CLASS"
"L_BRACKET"
"R_BRACKET"
"COMMA"
"SLURPY"
"UNION"
"INTERSECT"
"SLASH"
"NOT"
"L_PAREN"
"R_PAREN"
"MYSTERY"

BUGS
Please report any bugs to <https://github.com/tobyink/p5-type-tiny/issues>.

SEE ALSO
Type::Registry.

AUTHOR
Toby Inkster <tobyink@cpan.org>.

COPYRIGHT AND LICENCE
This software is copyright (c) 2013-2014, 2017-2025 by Toby Inkster.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

DISCLAIMER OF WARRANTIES
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.