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rustc_span: Minor improvements

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Introduce `{IndexNewtype,SyntaxContext}::from_u16` for convenience because small indices are sometimes encoded as `u16`.
Use `SpanData::span` instead of `Span::new` where appropriate.
Add a clarifying comment about decoding span parents.
This commit is contained in:
Vadim Petrochenkov 2024-06-16 00:53:00 +03:00
parent 12b33d36f3
commit 14da80c372
6 changed files with 33 additions and 14 deletions
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4
compiler/rustc_infer/src/infer/mod.rs
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@ -881,13 +881,13 @@ impl<'tcx> InferCtxt<'tcx> {
.collect();
vars.extend(
(0..inner.int_unification_table().len())
.map(|i| ty::IntVid::from_u32(i as u32))
.map(|i| ty::IntVid::from_usize(i))
.filter(|&vid| inner.int_unification_table().probe_value(vid).is_unknown())
.map(|v| Ty::new_int_var(self.tcx, v)),
);
vars.extend(
(0..inner.float_unification_table().len())
.map(|i| ty::FloatVid::from_u32(i as u32))
.map(|i| ty::FloatVid::from_usize(i))
.filter(|&vid| inner.float_unification_table().probe_value(vid).is_unknown())
.map(|v| Ty::new_float_var(self.tcx, v)),
);