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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/impl-trait/cross-return-site-inference.rs | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/cross-return-site-inference.rs b/src/test/ui/impl-trait/cross-return-site-inference.rs new file mode 100644 index 000000000..d881af9ed --- /dev/null +++ b/src/test/ui/impl-trait/cross-return-site-inference.rs @@ -0,0 +1,45 @@ +// edition:2021 + +fn foo(b: bool) -> impl std::fmt::Debug { + if b { + return vec![42] + } + [].into_iter().collect() +} + +fn bar(b: bool) -> impl std::fmt::Debug { + if b { + return [].into_iter().collect() + } + vec![42] +} + +fn bak(b: bool) -> impl std::fmt::Debug { + if b { + return std::iter::empty().collect() + } + vec![42] +} + +fn baa(b: bool) -> impl std::fmt::Debug { + if b { + return [42].into_iter().collect() + } + vec![] +} + +fn muh() -> Result<(), impl std::fmt::Debug> { + Err("whoops")?; + Ok(()) //~ ERROR type annotations needed +} + +fn muh2() -> Result<(), impl std::fmt::Debug> { + return Err(From::from("foo")); //~ ERROR type annotations needed + Ok(()) +} + +fn muh3() -> Result<(), impl std::fmt::Debug> { + Err(From::from("foo")) //~ ERROR type annotations needed +} + +fn main() {} |