Devel::OverloadInfo(3pUser Contributed Perl DocumentatDevel::OverloadInfo(3pm)
NAME
Devel::OverloadInfo - introspect overloaded operators
VERSION
version 0.007
DESCRIPTION
Devel::OverloadInfo returns information about overloaded operators for
a given class (or object), including where in the inheritance hierarchy
the overloads are declared and where the code implementing them is.
FUNCTIONS
is_overloaded
if (is_overloaded($class_or_object)) { ... }
Returns a boolean indicating whether the given class or object has any
overloading declared. Note that a bare "use overload;" with no actual
operators counts as being overloaded.
Equivalent to overload::Overloaded(), but doesn't trigger various bugs
associated with it in versions of perl before 5.16.
overload_op_info
my $info = overload_op_info($class_or_object, $op);
Returns a hash reference with information about the specified
overloaded operator of the named class or blessed object.
Returns "undef" if the operator is not overloaded.
See "Overloadable Operations" in overload for the available operators.
The keys in the returned hash are as follows:
class
The name of the class in which the operator overloading was
declared.
code
A reference to the function implementing the overloaded operator.
code_name
The fully qualified name of the function implementing the
overloaded operator.
method_name (optional)
The name of the method implementing the overloaded operator, if the
overloading was specified as a named method, e.g. "use overload $op
=> 'method';".
code_class (optional)
The name of the class in which the method specified by
"method_name" was found.
value (optional)
For the special "fallback" key, the value it was given in "class".
overload_info
my $info = overload_info($class_or_object);
Returns a hash reference with information about all the overloaded
operators of specified class name or blessed object. The keys are the
overloaded operators, as specified in %overload::ops (see "Overloadable
Operations" in overload), and the values are the hashes returned by
"overload_op_info".
CAVEATS
Whether the "fallback" key exists when it has its default value of
"undef" varies between perl versions: Before 5.18 it's there, in later
versions it's not.
AUTHOR
Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2014 by Dagfinn Ilmari Mannsåker.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
perl v5.32.1 2021-09-26 Devel::OverloadInfo(3pm)
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