match *ctor {
ConstantValue(ref value) => {
let to = cmp_to(value)?;
- let end = (to != Ordering::Greater) ||
- (end == RangeEnd::Excluded && to == Ordering::Equal);
+ let end = (to == Ordering::Less) ||
+ (end == RangeEnd::Included && to == Ordering::Equal);
Ok(cmp_from(value)? && end)
},
ConstantRange(ref from, ref to, RangeEnd::Included) => {
let to = cmp_to(to)?;
- let end = (to != Ordering::Greater) ||
- (end == RangeEnd::Excluded && to == Ordering::Equal);
+ let end = (to == Ordering::Less) ||
+ (end == RangeEnd::Included && to == Ordering::Equal);
Ok(cmp_from(from)? && end)
},
ConstantRange(ref from, ref to, RangeEnd::Excluded) => {
--- /dev/null
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// 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.
+
+#![feature(exclusive_range_pattern)]
+
+fn main() {
+ // These cases should generate no warning.
+ match 10 {
+ 1..10 => {},
+ 10 => {},
+ _ => {},
+ }
+
+ match 10 {
+ 1..10 => {},
+ 9...10 => {},
+ _ => {},
+ }
+
+ match 10 {
+ 1..10 => {},
+ 10...10 => {},
+ _ => {},
+ }
+
+ // These cases should generate an "unreachable pattern" warning.
+ match 10 {
+ 1..10 => {},
+ 9 => {},
+ _ => {},
+ }
+
+ match 10 {
+ 1..10 => {},
+ 8...9 => {},
+ _ => {},
+ }
+
+ match 10 {
+ 1..10 => {},
+ 9...9 => {},
+ _ => {},
+ }
+}
\ No newline at end of file
--- /dev/null
+warning: unreachable pattern
+ --> $DIR/issue-43253.rs:36:9
+ |
+36 | 9 => {},
+ | ^
+ |
+ = note: #[warn(unreachable_patterns)] on by default
+
+warning: unreachable pattern
+ --> $DIR/issue-43253.rs:42:9
+ |
+42 | 8...9 => {},
+ | ^^^^^
+
+warning: unreachable pattern
+ --> $DIR/issue-43253.rs:48:9
+ |
+48 | 9...9 => {},
+ | ^^^^^
+