NAME<\/a> Moose::Meta::TypeConstraint \u2212 The Moose Type Constraint metaclass<\/p>\n version 2.2014<\/p>\n This class represents a single type constraint. Moose\u2019s built-in type constraints, as well as constraints you define, are all stored in a Moose::Meta::TypeConstraint::Registry object as objects of this class.<\/p>\n “Moose::Meta::TypeConstraint” is a subclass of Class::MOP::Object.<\/p>\n Moose::Meta::TypeConstraint\u2212>new(%options)<\/b> \u2022<\/p>\n<\/td>\n name<\/p>\n<\/td>\n The constraint name. If a name is not provided, it will be set to “__ANON__”.<\/p>\n \u2022<\/p>\n<\/td>\n parent<\/p>\n<\/td>\n A “Moose::Meta::TypeConstraint” object which is the parent type for the type being created. This is optional.<\/p>\n \u2022<\/p>\n<\/td>\n constraint<\/p>\n<\/td>\n This is the subroutine reference that implements the actual constraint check. This defaults to a subroutine which always returns true.<\/p>\n \u2022<\/p>\n<\/td>\n message<\/p>\n<\/td>\n A subroutine reference which is used to generate an error message when the constraint fails. This is optional.<\/p>\n \u2022<\/p>\n<\/td>\n coercion<\/p>\n<\/td>\n A Moose::Meta::TypeCoercion object representing the coercions to the type. This is optional.<\/p>\n \u2022<\/p>\n<\/td>\n inlined<\/p>\n<\/td>\n A subroutine which returns a string suitable for inlining this type constraint. It will be called as a method on the type constraint object, and will receive a single additional parameter, a variable name to be tested (usually “$_” or “$_[0]”.<\/p>\n This is optional.<\/p>\n \u2022<\/p>\n<\/td>\n inline_environment<\/p>\n<\/td>\n A hash reference of variables to close over. The keys are variables names, and the values are references<\/i> to the variables.<\/p>\n $constraint\u2212>equals($type_name_or_object)<\/b> $constraint\u2212>is_subtype_of($type_name_or_object)<\/b> $constraint\u2212>is_a_type_of($type_name_or_object)<\/b> $constraint\u2212>coerce($value)<\/b> If no coercion can produce a value matching $constraint, the original value is returned.<\/p>\n $constraint\u2212>assert_coerce($value)<\/b> $constraint\u2212>check($value)<\/b> $constraint\u2212>validate($value)<\/b> $constraint\u2212>assert_valid($value)<\/b> $constraint\u2212>name<\/b> $constraint\u2212>parent<\/b> $constraint\u2212>has_parent<\/b> $constraint\u2212>parents<\/b> $constraint\u2212>constraint<\/b> $constraint\u2212>get_message($value)<\/b> $constraint\u2212>has_message<\/b> $constraint\u2212>message<\/b> $constraint\u2212>coercion<\/b> $constraint\u2212>has_coercion<\/b> $constraint\u2212>can_be_inlined<\/b> $constraint\u2212>create_child_type(%options)<\/b> This method exists so that subclasses of this class can override this behavior and change how child types are created.<\/p>\n See ” BUGS”<\/small> in Moose for details on reporting bugs.<\/p>\n \u2022<\/p>\n<\/td>\n Stevan Little \u2022<\/p>\n<\/td>\n Dave Rolsky \u2022<\/p>\n<\/td>\n Jesse Luehrs \u2022<\/p>\n<\/td>\n Shawn M Moore \u2022<\/p>\n<\/td>\n \u00d7\u00d7\u00d7\u00d7 \u00d7\u00a7\u00d7\u00d7\u2019\u00d7\u00d7 (Yuval Kogman) \u2022<\/p>\n<\/td>\n Karen Etheridge \u2022<\/p>\n<\/td>\n Florian Ragwitz \u2022<\/p>\n<\/td>\n Hans Dieter Pearcey \u2022<\/p>\n<\/td>\n
VERSION<\/a>
DESCRIPTION<\/a>
INHERITANCE<\/a>
METHODS<\/a>
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COPYRIGHT AND LICENSE<\/a> <\/p>\n
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This creates a new type constraint based on the provided %options:<\/p>\n\n
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Returns true if the supplied name or type object is the same as the current type.<\/p>\n
Returns true if the supplied name or type object is a parent of the current type.<\/p>\n
Returns true if the given type is the same as the current type, or is a parent of the current type. This is a shortcut for checking “equals” and “is_subtype_of”.<\/p>\n
This will attempt to coerce the value to the type. If the type does not have any defined coercions this will throw an error.<\/p>\n
This method behaves just like “coerce”, but if the result is not valid according to $constraint, an error is thrown.<\/p>\n
Returns true if the given value passes the constraint for the type.<\/p>\n
This is similar to “check”. However, if the type is valid<\/i> then the method returns an explicit “undef”. If the type is not valid, we call “$self\u2212>get_message($value)” internally to generate an error message.<\/p>\n
Like “check” and “validate”, this method checks whether $value is valid under the constraint. If it is, it will return true. If it is not, an exception will be thrown with the results of “$self\u2212>get_message($value)”.<\/p>\n
Returns the type\u2019s name, as provided to the constructor.<\/p>\n
Returns the type\u2019s parent, as provided to the constructor, if any.<\/p>\n
Returns true if the type has a parent type.<\/p>\n
Returns all of the types parents as an list of type constraint objects.<\/p>\n
Returns the type\u2019s constraint, as provided to the constructor.<\/p>\n
This generates a method for the given value. If the type does not have an explicit message, we generate a default message.<\/p>\n
Returns true if the type has a message.<\/p>\n
Returns the type\u2019s message as a subroutine reference.<\/p>\n
Returns the type\u2019s Moose::Meta::TypeCoercion object, if one exists.<\/p>\n
Returns true if the type has a coercion.<\/p>\n
Returns true if this type constraint can be inlined. A type constraint which subtypes an inlinable constraint and does not add an additional constraint “inherits” its parent type\u2019s inlining.<\/p>\n
This returns a new type constraint of the same class using the provided %options. The “parent” option will be the current type.<\/p>\nBUGS <\/a> <\/h2>\n
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