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/consts/const-fn-mismatch.rs | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 tests/ui/consts/const-fn-mismatch.rs (limited to 'tests/ui/consts/const-fn-mismatch.rs') diff --git a/tests/ui/consts/const-fn-mismatch.rs b/tests/ui/consts/const-fn-mismatch.rs new file mode 100644 index 000000000..3107b8128 --- /dev/null +++ b/tests/ui/consts/const-fn-mismatch.rs @@ -0,0 +1,17 @@ +// Test that we can't declare a const fn in an impl -- right now it's +// just not allowed at all, though eventually it'd make sense to allow +// it if the trait fn is const (but right now no trait fns can be +// const). + +trait Foo { + fn f() -> u32; +} + +impl Foo for u32 { + const fn f() -> u32 { + //~^ ERROR functions in traits cannot be declared const + 22 + } +} + +fn main() {} -- cgit v1.2.3