René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[MNT]: Is the macosx backend (very slowly) leaking strings?","articleBody":"### Summary\n\nmacosx.m contains the following snippets:\r\n```objc\r\nstatic PyObject*\r\nFigureManager_set_window_title(FigureManager* self,\r\n                               PyObject *args, PyObject *kwds)\r\n// elided\r\n        NSString* ns_title = [[[NSString alloc]\r\n                               initWithCString: title\r\n                               encoding: NSUTF8StringEncoding] autorelease];\r\n        [window setTitle: ns_title];\r\n// elided\r\n```\r\nand\r\n```objc\r\nstatic PyObject*\r\nchoose_save_file(PyObject* unused, PyObject* args)\r\n// elided\r\n    [panel setTitle: [NSString stringWithCString: title\r\n                                        encoding: NSASCIIStringEncoding]];\r\n    NSString* ns_default_filename =\r\n        [[NSString alloc]\r\n         initWithCString: default_filename\r\n         encoding: NSUTF8StringEncoding];\r\n    [panel setNameFieldStringValue: ns_default_filename];\r\n// elided\r\n```\r\nI'm don't know anything about autorelease semantics, but it seems a bit worrying that set_window_title makes some GC-related action on ns_title (`autorelease`) whereas choose_save_file doesn't, just using `title` and `ns_default_filename` directly.  Or perhaps nothing matters and the `autorelease` in set_window_title is redundant?\n\n### Proposed fix\n\n_No response_","author":{"url":"https://github.com/anntzer","@type":"Person","name":"anntzer"},"datePublished":"2021-11-23T01:10:50.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/21722/matplotlib/issues/21722"}