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
CLASS
L_BRACKET
R_BRACKET
COMMA
SLURPY
UNION
INTERSECT
NOT
L_PAREN
R_PAREN
MYSTERY

Bugs

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

See Also

Type::Registry.

Manual
The best place to start learning about this module is the manual.