From d3e5177f816d723cbce31ae7a7779feca8a69724 Mon Sep 17 00:00:00 2001 From: Matthias Krüger Date: Tue, 3 Mar 2020 01:19:00 +0100 Subject: Use .next() instead of .nth(0) on iterators. --- src/librustc_parse/parser/expr.rs | 2 +- src/librustc_parse/parser/pat.rs | 2 +- src/librustc_parse/parser/ty.rs | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'src/librustc_parse/parser') diff --git a/src/librustc_parse/parser/expr.rs b/src/librustc_parse/parser/expr.rs index 18ddd23588e..14366eb4e87 100644 --- a/src/librustc_parse/parser/expr.rs +++ b/src/librustc_parse/parser/expr.rs @@ -955,7 +955,7 @@ impl<'a> Parser<'a> { }; let kind = if es.len() == 1 && !trailing_comma { // `(e)` is parenthesized `e`. - ExprKind::Paren(es.into_iter().nth(0).unwrap()) + ExprKind::Paren(es.into_iter().next().unwrap()) } else { // `(e,)` is a tuple with only one field, `e`. ExprKind::Tup(es) diff --git a/src/librustc_parse/parser/pat.rs b/src/librustc_parse/parser/pat.rs index 45d1aacdd3c..4c041fd669d 100644 --- a/src/librustc_parse/parser/pat.rs +++ b/src/librustc_parse/parser/pat.rs @@ -479,7 +479,7 @@ impl<'a> Parser<'a> { // Here, `(pat,)` is a tuple pattern. // For backward compatibility, `(..)` is a tuple pattern as well. Ok(if fields.len() == 1 && !(trailing_comma || fields[0].is_rest()) { - PatKind::Paren(fields.into_iter().nth(0).unwrap()) + PatKind::Paren(fields.into_iter().next().unwrap()) } else { PatKind::Tuple(fields) }) diff --git a/src/librustc_parse/parser/ty.rs b/src/librustc_parse/parser/ty.rs index 3d2b0c014ac..c4469331b66 100644 --- a/src/librustc_parse/parser/ty.rs +++ b/src/librustc_parse/parser/ty.rs @@ -198,7 +198,7 @@ impl<'a> Parser<'a> { })?; if ts.len() == 1 && !trailing { - let ty = ts.into_iter().nth(0).unwrap().into_inner(); + let ty = ts.into_iter().next().unwrap().into_inner(); let maybe_bounds = allow_plus == AllowPlus::Yes && self.token.is_like_plus(); match ty.kind { // `(TY_BOUND_NOPAREN) + BOUND + ...`. -- cgit 1.4.1-3-g733a5