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-rw-r--r--src/test/ui/pattern/usefulness/slice-patterns-reachability.rs25
1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/pattern/usefulness/slice-patterns-reachability.rs b/src/test/ui/pattern/usefulness/slice-patterns-reachability.rs
new file mode 100644
index 000000000..7c747b5e0
--- /dev/null
+++ b/src/test/ui/pattern/usefulness/slice-patterns-reachability.rs
@@ -0,0 +1,25 @@
+#![deny(unreachable_patterns)]
+
+fn main() {
+ let s: &[bool] = &[];
+
+ match s {
+ [true, ..] => {}
+ [true, ..] => {} //~ ERROR unreachable pattern
+ [true] => {} //~ ERROR unreachable pattern
+ [..] => {}
+ }
+ match s {
+ [.., true] => {}
+ [.., true] => {} //~ ERROR unreachable pattern
+ [true] => {} //~ ERROR unreachable pattern
+ [..] => {}
+ }
+ match s {
+ [false, .., true] => {}
+ [false, .., true] => {} //~ ERROR unreachable pattern
+ [false, true] => {} //~ ERROR unreachable pattern
+ [false] => {}
+ [..] => {}
+ }
+}