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Copy makes it trivially easy to accidentally duplicate a Rust value that is actually a thin handle to a resource, resulting in null pointers. Just make a habit of avoiding it on exported wrappers. This can be a hard muscle memory to break since we usually want Copy wherever possible in normal Rust code.
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// Important: no #[wasm_bindgen]
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Isolation and policy enforcement are integrated into the kernel’s
19 January 2026ShareSave。关于这个话题，新收录的资料提供了深入分析