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Diffstat (limited to 'src/test/ui/lint/issue-20343.rs')
-rw-r--r-- | src/test/ui/lint/issue-20343.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/lint/issue-20343.rs b/src/test/ui/lint/issue-20343.rs new file mode 100644 index 000000000..000b63984 --- /dev/null +++ b/src/test/ui/lint/issue-20343.rs @@ -0,0 +1,32 @@ +// run-pass +#![allow(unused_variables)] +// Regression test for Issue #20343. + +// pretty-expanded FIXME #23616 + +#![deny(dead_code)] + +struct B { b: u32 } +struct C; +struct D; + +trait T<A> { fn dummy(&self, a: A) { } } +impl<A> T<A> for () {} + +impl B { + // test for unused code in arguments + fn foo(B { b }: B) -> u32 { b } + + // test for unused code in return type + fn bar() -> C { unsafe { ::std::mem::transmute(()) } } + + // test for unused code in generics + fn baz<A: T<D>>() {} +} + +pub fn main() { + let b = B { b: 3 }; + B::foo(b); + B::bar(); + B::baz::<()>(); +} |