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Zig 0.14 #16
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Zig 0.14 #16
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Currently, when pop returns, the stack is deinitialized if empty. I assume this is an optimize to free memory ASAP, without having to wait for deinit. But currently, the only way to free a Ctx is from a callback being executed within pop. You have to call `ctx.deinit` within `ctx.pop`, and you possibly have other things to clean up too, like deallocating a heap-allocated Ctx. This makes _any_ operations after @call returns dangerous. Consider this code: https://github.com/lightpanda-io/browser/blob/6ae4ed9fc33eb82d7206d52692d8616737d11bf5/src/xhr/xhr.zig#L617 This calls ctx.deinit() _within_ a call to ctx.pop, it then sets the union referencing ctx to null. After that point, the ctx variable/memory should not be used.
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