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LibJS: Make ConservativeVector<T> visit all possible values

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We were miscalculating the length of the buffer in pointer-sized chunks,
which is what the conservative root scan cares about.

This could cause some values to be prematurely garbage-collected.
This commit is contained in:
Andreas Kling 2024-11-12 15:21:02 +01:00 committed by Andreas Kling
parent faf6fd1189
commit 2fb3b6c542
Notes: github-actions[bot] 2024-11-12 16:39:36 +00:00 
Author: https://github.com/awesomekling
Commit: https://github.com/LadybirdBrowser/ladybird/commit/2fb3b6c542d
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2301
Reviewed-by: https://github.com/Hendiadyoin1
1 changed files with 5 additions and 1 deletions
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6
Libraries/LibJS/Heap/ConservativeVector.h
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@ -66,7 +66,11 @@ public:
virtual ReadonlySpan<FlatPtr> possible_values() const override virtual ReadonlySpan<FlatPtr> possible_values() const override
{ {
return ReadonlySpan<FlatPtr> { reinterpret_cast<FlatPtr const*>(this->data()), this->size() }; static_assert(sizeof(T) >= sizeof(FlatPtr));
return ReadonlySpan<FlatPtr> {
reinterpret_cast<FlatPtr const*>(this->data()),
this->size() * sizeof(T) / sizeof(FlatPtr),
};
} }
}; };