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0dec64caf0
`LOCAL_CONTEXT_KEY` is currently a `Cell<*mut LocalLayoutContext>`. The use of the raw pointer means that the `LocalLayoutContext` is not dropped when the thread dies; this leaks FreeType instances and probably other things. There are also some unsafe getter functions in `LayoutContext` (`font_context`, `applicable_declarations_cache` and `style_sharing_candidate_cache`) that @eddyb says involve undefined behaviour. This changeset changes `LOCAL_CONTEXT_KEY` to `RefCell<Option<Rc<LocalLayoutContext>>>`. This fixes the leak and also results in safe getters. (Fixes #6282.) <!-- Reviewable:start --> [<img src="https://reviewable.io/review_button.png" height=40 alt="Review on Reviewable"/>](https://reviewable.io/reviews/servo/servo/6289) <!-- Reviewable:end --> |
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| devtools | ||
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| layout | ||
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| msg | ||
| net | ||
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| plugins | ||
| profile | ||
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| servo | ||
| style | ||
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