diff -r de4ae767b0e3 -r 251638443e17 src/eric7/Plugins/CheckerPlugins/CodeStyleChecker/Unused/UnusedChecker.py
--- a/src/eric7/Plugins/CheckerPlugins/CodeStyleChecker/Unused/UnusedChecker.py Wed May 24 19:54:24 2023 +0200
+++ b/src/eric7/Plugins/CheckerPlugins/CodeStyleChecker/Unused/UnusedChecker.py Thu May 25 11:06:31 2023 +0200
@@ -171,6 +171,14 @@
):
continue
+ # TODO: add 'IgnoreEventHandlerMethods' to ignore Qt event handlers
+ # - function name ends with 'Event'
+ # - function name is 'event' or 'eventFilter'
+ if self.__args["IgnoreEventHandlerMethods"] and self.__isEventHandlerMethod(
+ functionNode
+ ):
+ continue
+
# ignore stub functions
if self.__args["IgnoreStubs"] and self.__isStubFunction(functionNode):
continue
@@ -294,6 +302,28 @@
name = functionNode.name
return len(name) > 4 and name.startswith("__") and name.endswith("__")
+ def __isEventHandlerMethod(self, functionNode):
+ """
+ Private method to check, if the function node defines a Qt event handler.
+
+ Qt event handler methods are assumed to end with 'Event' or have the name
+ 'event' or 'eventFilter'. Only standard methodes (i.e. ast.FunctionDef)
+ are assumed to be potential event handlers.
+
+ @param functionNode reference to the node defining the function or lambda
+ @type ast.AsyncFunctionDef, ast.FunctionDef or ast.Lambda
+ @return flag indicating a Qt event handler method
+ @rtype bool
+ """
+ if isinstance(functionNode, (ast.Lambda, ast.AsyncFunctionDef)):
+ return False
+
+ if not hasattr(functionNode, "name"):
+ return False
+
+ name = functionNode.name
+ return name.endswith("Event") or name in ("event", "eventFilter")
+
def __getUnusedArguments(self, functionNode):
"""
Private method to get a list of unused arguments of the given function.
