24         $callStack = CallStack::createFromHandler($handler);
52                 $callStack
66                         $callStack
81                 syntax_plugin_combo_link::addOpenLinkTagInCallStack($callStack, $attributes);
83                     self::addLinkContentInCallStack($callStack, $url);
84                     self::closeLinkInCallStack($callStack);
94                     return self::handleError($errorMessage, $strict, $callStack);
110                 syntax_plugin_combo_link::addOpenLinkTagInCallStack($callStack, $attributes);
112                     self::addLinkContentInCallStack($callStack, $canonicalUrl);
113                     self::closeLinkInCallStack($callStack);
120                     $callStack
126 …public static function handleError(string $errorMessage, bool $strict, CallStack $callStack): array  argument
138         $parent = $callStack->moveToParent();
151     public static function addLinkContentInCallStack(CallStack $callStack, string $url)  argument
153         $callStack->appendCallAtTheEnd(
166         $callStack = CallStack::createFromHandler($handler);
167         $openingCall = $callStack->moveToPreviousCorrespondingOpeningCall();
170             self::closeLinkInCallStack($callStack);
174     public static function closeLinkInCallStack(CallStack $callStack)  argument
176         $callStack->appendCallAtTheEnd(