From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/impl-trait/impl-trait-plus-priority.rs | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 src/test/ui/impl-trait/impl-trait-plus-priority.rs (limited to 'src/test/ui/impl-trait/impl-trait-plus-priority.rs') diff --git a/src/test/ui/impl-trait/impl-trait-plus-priority.rs b/src/test/ui/impl-trait/impl-trait-plus-priority.rs new file mode 100644 index 000000000..dfac9c0f1 --- /dev/null +++ b/src/test/ui/impl-trait/impl-trait-plus-priority.rs @@ -0,0 +1,49 @@ +// compile-flags: -Z parse-only + +fn f() -> impl A + {} // OK +fn f() -> impl A + B {} // OK +fn f() -> dyn A + B {} // OK +fn f() -> A + B {} // OK + +impl S { + fn f(self) -> impl A + { // OK + let _ = |a, b| -> impl A + {}; // OK + } + fn f(self) -> impl A + B { // OK + let _ = |a, b| -> impl A + B {}; // OK + } + fn f(self) -> dyn A + B { // OK + let _ = |a, b| -> dyn A + B {}; // OK + } + fn f(self) -> A + B { // OK + let _ = |a, b| -> A + B {}; // OK + } +} + +type A = fn() -> impl A +; +//~^ ERROR ambiguous `+` in a type +type A = fn() -> impl A + B; +//~^ ERROR ambiguous `+` in a type +type A = fn() -> dyn A + B; +//~^ ERROR ambiguous `+` in a type +type A = fn() -> A + B; +//~^ ERROR expected a path on the left-hand side of `+`, not `fn() -> A` + +type A = Fn() -> impl A +; +//~^ ERROR ambiguous `+` in a type +type A = Fn() -> impl A + B; +//~^ ERROR ambiguous `+` in a type +type A = Fn() -> dyn A + B; +//~^ ERROR ambiguous `+` in a type +type A = Fn() -> A + B; // OK, interpreted as `(Fn() -> A) + B` for compatibility + +type A = &impl A +; +//~^ ERROR ambiguous `+` in a type +type A = &impl A + B; +//~^ ERROR ambiguous `+` in a type +type A = &dyn A + B; +//~^ ERROR ambiguous `+` in a type +type A = &A + B; +//~^ ERROR expected a path on the left-hand side of `+`, not `&A` + +fn main() {} -- cgit v1.2.3