X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=clippy_lints%2Fsrc%2Fminmax.rs;h=087aa94a7ecfad42ba9ed5d8548fa8ab747613f6;hb=4d60841205d10293d6759df1948acda4c607c7eb;hp=4be2b9f522711a11f53c8dcb5e855d1e4979dc83;hpb=7df5601f5c8b84a73a14e5a3d16100d43573740a;p=rust.git

diff --git a/clippy_lints/src/minmax.rs b/clippy_lints/src/minmax.rs
index 4be2b9f5227..087aa94a7ec 100644
--- a/clippy_lints/src/minmax.rs
+++ b/clippy_lints/src/minmax.rs
@@ -1,7 +1,17 @@
+// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
 use crate::consts::{constant_simple, Constant};
 use crate::utils::{match_def_path, opt_def_id, paths, span_lint};
 use rustc::hir::*;
-use rustc::lint::*;
+use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
+use rustc::{declare_tool_lint, lint_array};
 use std::cmp::Ordering;
 
 /// **What it does:** Checks for expressions where `std::cmp::min` and `max` are
@@ -24,7 +34,6 @@
     "`min(_, max(_, _))` (or vice versa) with bounds clamping the result to a constant"
 }
 
-#[allow(missing_copy_implementations)]
 pub struct MinMaxPass;
 
 impl LintPass for MinMaxPass {
@@ -42,7 +51,7 @@ fn check_expr(&mut self, cx: &LateContext<'a, 'tcx>, expr: &'tcx Expr) {
                 }
                 match (
                     outer_max,
-                    Constant::partial_cmp(cx.tcx, &cx.tables.expr_ty(ie).sty, &outer_c, &inner_c),
+                    Constant::partial_cmp(cx.tcx, cx.tables.expr_ty(ie), &outer_c, &inner_c),
                 ) {
                     (_, None) | (MinMax::Max, Some(Ordering::Less)) | (MinMax::Min, Some(Ordering::Greater)) => (),
                     _ => {
@@ -65,9 +74,9 @@ enum MinMax {
     Max,
 }
 
-fn min_max<'a>(cx: &LateContext, expr: &'a Expr) -> Option<(MinMax, Constant, &'a Expr)> {
-    if let ExprCall(ref path, ref args) = expr.node {
-        if let ExprPath(ref qpath) = path.node {
+fn min_max<'a>(cx: &LateContext<'_, '_>, expr: &'a Expr) -> Option<(MinMax, Constant, &'a Expr)> {
+    if let ExprKind::Call(ref path, ref args) = expr.node {
+        if let ExprKind::Path(ref qpath) = path.node {
             opt_def_id(cx.tables.qpath_def(qpath, path.hir_id)).and_then(|def_id| {
                 if match_def_path(cx.tcx, def_id, &paths::CMP_MIN) {
                     fetch_const(cx, args, MinMax::Min)
@@ -85,7 +94,7 @@ fn min_max<'a>(cx: &LateContext, expr: &'a Expr) -> Option<(MinMax, Constant, &'
     }
 }
 
-fn fetch_const<'a>(cx: &LateContext, args: &'a [Expr], m: MinMax) -> Option<(MinMax, Constant, &'a Expr)> {
+fn fetch_const<'a>(cx: &LateContext<'_, '_>, args: &'a [Expr], m: MinMax) -> Option<(MinMax, Constant, &'a Expr)> {
     if args.len() != 2 {
         return None;
     }