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rust/compiler/rustc_typeck
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Dylan DPC 9dbc9ed870
Rollup merge of #77514 - scottmcm:less-once-chain-once, r=estebank 
Replace some once(x).chain(once(y)) with [x, y] IntoIter

Now that we have by-value array iterators that are [already used](25c8c53dd9/compiler/rustc_hir/src/def.rs (L305-L307))...

For example,
```diff
-        once(self.type_ns).chain(once(self.value_ns)).chain(once(self.macro_ns)).filter_map(|it| it)
+        IntoIter::new([self.type_ns, self.value_ns, self.macro_ns]).filter_map(|it| it)
```
2020-10-05 02:29:42 +02:00
..
src Rollup merge of #77514 - scottmcm:less-once-chain-once, r=estebank 2020-10-05 02:29:42 +02:00
Cargo.toml Replace some trivial struct_span_err!s in typeck. 2020-09-01 23:05:56 +10:00
README.md

README.md

For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.