Type::Parser(3) User Contributed Perl Documentation Type::Parser(3)

Type::Parser - parse type constraint strings

 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

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

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

"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.

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

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

Please report any bugs to <http://rt.cpan.org/Dist/Display.html?Queue=Type-Tiny>.

Type::Registry.

Toby Inkster <tobyink@cpan.org>.

This software is copyright (c) 2013-2014, 2017-2020 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.

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.

2020-10-28 perl v5.34.0