ad4f267b7a
search.cpan.org is shutting down. It will redirect to metacpan.org after June 25, 2018. With hat: perl
16 lines
896 B
Text
16 lines
896 B
Text
The Perl garbage collector uses simple reference counting during the normal
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execution of a program. This means that cycles or unweakened references in other
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parts of code can keep an object around for longer than intended. To help avoid
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this problem, the reference count of a new object from its class constructor
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ought to be 1. This way, the caller can know the object will be properly
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DESTROYed when it drops all of its references to it.
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Test::Refcount provides two test functions to help ensure this property holds
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for an object class, so as to be polite to its callers.
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If the assertion fails; that is, if the actual reference count is different to
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what was expected, a trace of references to the object can be printed, if Marc
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Lehmann's Devel::FindRef module is installed. This may assist the developer in
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finding where the references are.
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WWW: https://metacpan.org/release/Test-Refcount
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