1Error::TypeTiny::AssertUisoenr(3C)ontributed Perl DocumeEnrtraotri:o:nTypeTiny::Assertion(3)
2
3
4

NAME

6       Error::TypeTiny::Assertion - exception when a value fails a type
7       constraint
8

STATUS

10       This module is covered by the Type-Tiny stability policy.
11

DESCRIPTION

13       This exception is thrown when a value fails a type constraint
14       assertion.
15
16       This package inherits from Error::TypeTiny; see that for most
17       documentation. Major differences are listed below:
18
19   Attributes
20       "type"
21           The type constraint that was checked against. Weakened links are
22           involved, so this may end up being "undef".
23
24       "value"
25           The value that was tested.
26
27       "varname"
28           The name of the variable that was checked, if known. Defaults to
29           '$_'.
30
31       "attribute_name"
32           If this exception was thrown as the result of an isa check or a
33           failed coercion for a Moo attribute, then this will tell you which
34           attribute (if your Moo is new enough).
35
36           (Hopefully one day this will support other OO frameworks.)
37
38       "attribute_step"
39           If this exception was thrown as the result of an isa check or a
40           failed coercion for a Moo attribute, then this will contain either
41           "isa check" or "coercion" to indicate which went wrong (if your Moo
42           is new enough).
43
44           (Hopefully one day this will support other OO frameworks.)
45
46   Methods
47       "has_type", "has_attribute_name", "has_attribute_step"
48           Predicate methods.
49
50       "message"
51           Overridden to add "varname" to the message if defined.
52
53       "explain"
54           Attempts to explain why the value did not pass the type constraint.
55           Returns an arrayref of strings providing step-by-step reasoning; or
56           returns undef if no explanation is possible.
57

BUGS

59       Please report any bugs to
60       <https://github.com/tobyink/p5-type-tiny/issues>.
61

SEE ALSO

63       Error::TypeTiny.
64

AUTHOR

66       Toby Inkster <tobyink@cpan.org>.
67

69       This software is copyright (c) 2013-2014, 2017-2021 by Toby Inkster.
70
71       This is free software; you can redistribute it and/or modify it under
72       the same terms as the Perl 5 programming language system itself.
73

DISCLAIMER OF WARRANTIES

75       THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
76       WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
77       MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
78
79
80
81perl v5.32.1                      2021-04-27     Error::TypeTiny::Assertion(3)
Impressum