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-rw-r--r--src/test/ui/single-use-lifetime/one-use-in-inherent-method-argument.rs18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/single-use-lifetime/one-use-in-inherent-method-argument.rs b/src/test/ui/single-use-lifetime/one-use-in-inherent-method-argument.rs
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index 000000000..eecd715ef
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+++ b/src/test/ui/single-use-lifetime/one-use-in-inherent-method-argument.rs
@@ -0,0 +1,18 @@
+#![deny(single_use_lifetimes)]
+#![allow(dead_code)]
+#![allow(unused_variables)]
+
+// Test that we DO warn for a lifetime used only once in an inherent method.
+
+struct Foo<'f> {
+ data: &'f u32
+}
+
+impl<'f> Foo<'f> { //~ ERROR `'f` only used once
+ //~^ HELP elide the single-use lifetime
+ fn inherent_a<'a>(&self, data: &'a u32) { //~ ERROR `'a` only used once
+ //~^ HELP elide the single-use lifetime
+ }
+}
+
+fn main() { }