mirror
/
rustc-dev-guide
mirror of https://github.com/rust-lang/rustc-dev-guide.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Rollup merge of #137504 - nnethercote:remove-Map-4, r=Zalathar 

Move methods from Map to TyCtxt, part 4.

A follow-up to https://github.com/rust-lang/rust/pull/137350.

r? ```@Zalathar```
This commit is contained in:
Manish Goregaokar 2025-03-12 10:19:26 -07:00 committed by GitHub
parent a879001c20 7f5b5c36f8
commit 0d36dfac84
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/hir.md
View File

@ -139,12 +139,12 @@ defined in the map. By matching on this, you can find out what sort of
node the `HirId` referred to and also get a pointer to the data
itself. Often, you know what sort of node `n` is – e.g. if you know
that `n` must be some HIR expression, you can do
[`tcx.hir().expect_expr(n)`][expect_expr], which will extract and return the
[`tcx.hir_expect_expr(n)`][expect_expr], which will extract and return the
[`&hir::Expr`][Expr], panicking if `n` is not in fact an expression.
[find]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/hir/map/struct.Map.html#method.find
[`Node`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir/hir/enum.Node.html
[expect_expr]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/hir/map/struct.Map.html#method.expect_expr
[expect_expr]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty/struct.TyCtxt.html#method.expect_expr
[Expr]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_hir/hir/struct.Expr.html
Finally, you can use the HIR map to find the parents of nodes, via