From 194ade1267f2bb66cb53626679944e195850bdcf Mon Sep 17 00:00:00 2001
From: Zalathar
Date: Sat, 17 Aug 2024 22:18:37 +1000
Subject: [PATCH] Remove a useless ref/id/ref round-trip from
`pattern_from_hir`
This re-lookup of `&hir::Pat` by its ID appears to be an artifact of earlier
complexity that has since been removed from the compiler.
---
compiler/rustc_mir_build/src/thir/cx/mod.rs | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/compiler/rustc_mir_build/src/thir/cx/mod.rs b/compiler/rustc_mir_build/src/thir/cx/mod.rs
index 6120b1453cfab..5b5f97cb51410 100644
--- a/compiler/rustc_mir_build/src/thir/cx/mod.rs
+++ b/compiler/rustc_mir_build/src/thir/cx/mod.rs
@@ -8,7 +8,7 @@ use rustc_hir as hir;
use rustc_hir::def::DefKind;
use rustc_hir::def_id::{DefId, LocalDefId};
use rustc_hir::lang_items::LangItem;
-use rustc_hir::{HirId, Node};
+use rustc_hir::HirId;
use rustc_middle::bug;
use rustc_middle::middle::region;
use rustc_middle::thir::*;
@@ -110,11 +110,7 @@ impl<'tcx> Cx<'tcx> {
}
#[instrument(level = "debug", skip(self))]
- fn pattern_from_hir(&mut self, p: &hir::Pat<'_>) -> Box> {
- let p = match self.tcx.hir_node(p.hir_id) {
- Node::Pat(p) => p,
- node => bug!("pattern became {:?}", node),
- };
+ fn pattern_from_hir(&mut self, p: &'tcx hir::Pat<'tcx>) -> Box> {
pat_from_hir(self.tcx, self.param_env, self.typeck_results(), p)
}