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Posted to jira@arrow.apache.org by "Andy Grove (Jira)" <ji...@apache.org> on 2021/01/06 17:58:00 UTC
[jira] [Updated] (ARROW-10982) [Rust] Document use of unsafe in
ffi.rs
[ https://issues.apache.org/jira/browse/ARROW-10982?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andy Grove updated ARROW-10982:
-------------------------------
Fix Version/s: (was: 3.0.0)
> [Rust] Document use of unsafe in ffi.rs
> ---------------------------------------
>
> Key: ARROW-10982
> URL: https://issues.apache.org/jira/browse/ARROW-10982
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: Rust
> Reporter: Andy Grove
> Priority: Major
>
> There are ~18 uses of unsafe in ffi.rs and we should document them according to the guidelines in the Arrow crate README
>
> {code:java}
> // JUSTIFICATION
> // Benefit
> // Describe the benefit of using unsafe. E.g.
> // "30% performance degradation if the safe counterpart is used, see bench X."
> // Soundness
> // Describe why the code remains sound (according to the definition of rust's unsafe code guidelines). E.g.
> // "We bounded check these values at initialization and the array is immutable."
> let ... = unsafe { ... }; {code}
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