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"
"HEXNUM"
"CLASS"
"L_BRACKET"
"R_BRACKET"
"COMMA"
"SLURPY"
"UNION"
"INTERSECT"
"SLASH"
"NOT"
"L_PAREN"
"R_PAREN"
"MYSTERY"
Please report any bugs to <https://github.com/tobyink/p5−type−tiny/issues>.
Type::Registry.
Toby Inkster <[email protected]>.
This software is copyright (c) 2013−2014, 2017−2023 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.