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Rollup merge of #116041 - compiler-errors:rigid-note, r=RalfJung

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Add note to `is_known_rigid`

Adds a note requested by `@RalfJung` in https://github.com/rust-lang/rust/pull/114941#discussion_r1329963704

Let me know if there are any other fns that need documentation, I could throw them into this PR too :)
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Matthias Krüger 2023-09-22 12:15:28 +02:00 committed by GitHub
commit 66f272d6ca
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5
compiler/rustc_middle/src/ty/sty.rs
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@ -2946,6 +2946,11 @@ pub fn is_c_void(self, tcx: TyCtxt<'_>) -> bool {
} }
} }
/// Returns `true` when the outermost type cannot be further normalized,
/// resolved, or substituted. This includes all primitive types, but also
/// things like ADTs and trait objects, sice even if their arguments or
/// nested types may be further simplified, the outermost [`TyKind`] or
/// type constructor remains the same.
pub fn is_known_rigid(self) -> bool { pub fn is_known_rigid(self) -> bool {
match self.kind() { match self.kind() {
Bool Bool