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/inference/cannot-infer-closure-circular.rs | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 tests/ui/inference/cannot-infer-closure-circular.rs (limited to 'tests/ui/inference/cannot-infer-closure-circular.rs') diff --git a/tests/ui/inference/cannot-infer-closure-circular.rs b/tests/ui/inference/cannot-infer-closure-circular.rs new file mode 100644 index 000000000..affb48149 --- /dev/null +++ b/tests/ui/inference/cannot-infer-closure-circular.rs @@ -0,0 +1,13 @@ +fn main() { + // Below we call the closure with its own return as the argument, unifying + // its inferred input and return types. We want to make sure that the generated + // error handles this gracefully, and in particular doesn't generate an extra + // note about the `?` operator in the closure body, which isn't relevant to + // the inference. + let x = |r| { //~ ERROR type annotations needed for `Result<(), E>` + let v = r?; + Ok(v) + }; + + let _ = x(x(Ok(()))); +} -- cgit v1.2.3