LoggerFactory::getInstance() will be called many times during the course
of handling a typical MediaWiki request. The interface_exists() guard
condition it uses is an attempt to provide an informative error message
when Composer managed libraries are not installed. This check is only
needed on the first invocation of getInstance() to be effective. Using
an additional boolean to guard the interface_exists() call will allow
the PHP runtime to avoid a potentially expensive (at least compared to
a static boolean comparison) function call.
This is the sort of thing that smells of premature optimization, but its
addition is in fact informed by examination of performance reports from
the Wikimedia production environment.
Bug: T115729
Change-Id: I437bcb5326b06145081f2b86f6c4d0c8dc1a318c
Doxygen doesn't quite grok PHP's use of the reverse solidus (backslash)
character as a namespace separator. The C++ based parser it uses needs
them to be escaped in comments just as if they were being used in
a literal string context in PHP.
Change-Id: I9aff9dd0fb74a95039da1091c2f247cf71fd085a
Move the MWLogger PSR-3 logging related classes into the
MediaWiki\Logger namespace. Create shim classes to ease migration of
existing MWLoggerFactory usage to the namespaced classes.
Bug: T93406
Change-Id: I359cc81fbd2dcf8937742311dcc7d3dee08747b0
2015-04-03 11:32:24 -07:00
Renamed from includes/debug/logger/Factory.php (Browse further)
