From fde59a8cb73f87ced306a29649b80c3776bab526 Mon Sep 17 00:00:00 2001
From: LingMan <LingMan@users.noreply.github.com>
Date: Fri, 12 Feb 2021 13:58:13 +0100
Subject: [PATCH] Use `Iterator::all` instead of open-coding it
Shorter code and by initializing to the final value directly, the variable
doesn't need to be mut.
---
compiler/rustc_typeck/src/check/upvar.rs | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/compiler/rustc_typeck/src/check/upvar.rs b/compiler/rustc_typeck/src/check/upvar.rs
index 04a9e65e6647d..10a7c1a394d3f 100644
--- a/compiler/rustc_typeck/src/check/upvar.rs
+++ b/compiler/rustc_typeck/src/check/upvar.rs
@@ -1382,14 +1382,8 @@ fn determine_place_ancestry_relation(
// Assume of length of projections_b = m
let projections_b = &place_b.projections;
- let mut same_initial_projections = true;
-
- for (proj_a, proj_b) in projections_a.iter().zip(projections_b.iter()) {
- if proj_a != proj_b {
- same_initial_projections = false;
- break;
- }
- }
+ let same_initial_projections =
+ projections_a.iter().zip(projections_b.iter()).all(|(proj_a, proj_b)| proj_a == proj_b);
if same_initial_projections {
// First min(n, m) projections are the same