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Use De Morgan's law to simplify logic

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Co-authored-by: Camille Gillot <gillot.camille@gmail.com>
This commit is contained in:
Michael Howell 2023-05-09 13:27:51 -07:00
parent a12f50ddc4
commit bd90868b3f
1 changed files with 6 additions and 6 deletions
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12
compiler/rustc_middle/src/ty/util.rs
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@ -867,15 +867,15 @@ impl<'tcx> TyCtxt<'tcx> {
pub fn is_user_visible_dep(self, key: CrateNum) -> bool {
// | Private | Direct | Visible | |
// |---------|--------|---------|--------------------|
// | Yes | Yes | Yes | !(true && !true) |
// | No | Yes | Yes | !(false && !true) |
// | Yes | No | No | !(true && !false) |
// | No | No | Yes | !(false && !false) |
!(self.is_private_dep(key)
// | Yes | Yes | Yes | !true || true |
// | No | Yes | Yes | !false || true |
// | Yes | No | No | !true || false |
// | No | No | Yes | !false || false |
!self.is_private_dep(key)
// If `extern_crate` is `None`, then the crate was injected (e.g., by the allocator).
// Treat that kind of crate as "indirect", since it's an implementation detail of
// the language.
&& !self.extern_crate(key.as_def_id()).map_or(false, |e| e.is_direct()))
|| self.extern_crate(key.as_def_id()).map_or(false, |e| e.is_direct())
}
}