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Diffstat (limited to 'tests/ui/traits/suggest-deferences/multiple-0.rs')
-rw-r--r-- | tests/ui/traits/suggest-deferences/multiple-0.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/traits/suggest-deferences/multiple-0.rs b/tests/ui/traits/suggest-deferences/multiple-0.rs new file mode 100644 index 000000000..9ac55177f --- /dev/null +++ b/tests/ui/traits/suggest-deferences/multiple-0.rs @@ -0,0 +1,36 @@ +// run-rustfix +use std::ops::Deref; + +trait Happy {} +struct LDM; +impl Happy for &LDM {} + +struct Foo(LDM); +struct Bar(Foo); +struct Baz(Bar); +impl Deref for Foo { + type Target = LDM; + fn deref(&self) -> &Self::Target { + &self.0 + } +} +impl Deref for Bar { + type Target = Foo; + fn deref(&self) -> &Self::Target { + &self.0 + } +} +impl Deref for Baz { + type Target = Bar; + fn deref(&self) -> &Self::Target { + &self.0 + } +} + +fn foo<T>(_: T) where T: Happy {} + +fn main() { + let baz = Baz(Bar(Foo(LDM))); + foo(&baz); + //~^ ERROR the trait bound `&Baz: Happy` is not satisfied +} |