glib: Add upgrade_or_insert{_with} to WeakRefs #1249
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Avoids some boilerplate when implementing things like single-window apps, where you don't really care if the object was already set, you just need an object
sdroege
reviewed
Dec 12, 2023
| /// If the stored object was already destroyed or no object was set, the | ||
| /// reference is updated to the result of `f`, which is then returned | ||
| #[inline] | ||
| pub fn upgrade_or_insert_with<F>(&self, f: F) -> T |
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This is unfortunately racy if called from multiple threads at once. That at least should be documented.
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Hmm, yes. I suppose we can't do much about that without new upstream API? bother.
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Avoids some boilerplate when implementing things like single-window apps, where you don't really care if the object was already set, you just need an object