summaryrefslogtreecommitdiffstats
path: root/src/test/ui/lint/dead-code/const-and-self.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/lint/dead-code/const-and-self.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/lint/dead-code/const-and-self.rs')
-rw-r--r--src/test/ui/lint/dead-code/const-and-self.rs54
1 files changed, 54 insertions, 0 deletions
diff --git a/src/test/ui/lint/dead-code/const-and-self.rs b/src/test/ui/lint/dead-code/const-and-self.rs
new file mode 100644
index 000000000..5c96e4d0e
--- /dev/null
+++ b/src/test/ui/lint/dead-code/const-and-self.rs
@@ -0,0 +1,54 @@
+// check-pass
+
+#![warn(dead_code)]
+
+const TLC: usize = 4;
+
+trait Tr { fn doit(&self); }
+
+impl Tr for [usize; TLC] {
+ fn doit(&self) {
+ println!("called 4");
+ }
+}
+
+struct X;
+struct Y;
+struct Z;
+
+trait Foo<T> {
+ type Ty;
+ fn foo() -> Self::Ty;
+}
+
+impl Foo<Y> for X {
+ type Ty = Z;
+ fn foo() -> Self::Ty {
+ unimplemented!()
+ }
+}
+
+enum E {
+ A,
+ B, //~ WARN variants `B` and `C` are never constructed
+ C,
+}
+
+type F = E;
+
+impl E {
+ fn check(&self) -> bool {
+ match self {
+ Self::A => true,
+ Self::B => false,
+ F::C => false,
+ }
+ }
+}
+
+fn main() {
+ let s = [0,1,2,3];
+ s.doit();
+ X::foo();
+ E::A.check();
+}