From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/traits/static-method-generic-inference.rs | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 tests/ui/traits/static-method-generic-inference.rs (limited to 'tests/ui/traits/static-method-generic-inference.rs') diff --git a/tests/ui/traits/static-method-generic-inference.rs b/tests/ui/traits/static-method-generic-inference.rs new file mode 100644 index 000000000..f4e94c4f7 --- /dev/null +++ b/tests/ui/traits/static-method-generic-inference.rs @@ -0,0 +1,28 @@ +// Issue #3902. We are (at least currently) unable to infer `Self` +// based on `T`, even though there is only a single impl, because of +// the possibility of associated types and other things (basically: no +// constraints on `Self` here at all). + +mod base { + pub trait HasNew { + fn new() -> T; + fn dummy(&self) { } + } + + pub struct Foo { + dummy: (), + } + + impl HasNew for Foo { + fn new() -> Foo { + Foo { dummy: () } + } + } +} + +pub fn foo() { + let _f: base::Foo = base::HasNew::new(); + //~^ ERROR E0790 +} + +fn main() { } -- cgit v1.2.3