diff options
Diffstat (limited to 'src/test/ui')
| -rw-r--r-- | src/test/ui/async-await/try-on-option-in-async.stderr | 30 | ||||
| -rw-r--r-- | src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr | 39 | ||||
| -rw-r--r-- | src/test/ui/try-on-option-diagnostics.stderr | 19 | ||||
| -rw-r--r-- | src/test/ui/try-on-option.stderr | 9 | ||||
| -rw-r--r-- | src/test/ui/try-operator-on-main.stderr | 11 |
5 files changed, 88 insertions, 20 deletions
diff --git a/src/test/ui/async-await/try-on-option-in-async.stderr b/src/test/ui/async-await/try-on-option-in-async.stderr index 7d31f60efdc..46f8f41076b 100644 --- a/src/test/ui/async-await/try-on-option-in-async.stderr +++ b/src/test/ui/async-await/try-on-option-in-async.stderr @@ -1,8 +1,14 @@ error[E0277]: the `?` operator can only be used in an async block that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/try-on-option-in-async.rs:8:9 | -LL | x?; - | ^^ cannot use the `?` operator in an async block that returns `{integer}` +LL | async { + | ___________- +LL | | let x: Option<u32> = None; +LL | | x?; + | | ^^ cannot use the `?` operator in an async block that returns `{integer}` +LL | | 22 +LL | | }.await + | |_____- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `{integer}` = note: required by `std::ops::Try::from_error` @@ -10,8 +16,14 @@ LL | x?; error[E0277]: the `?` operator can only be used in an async closure that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/try-on-option-in-async.rs:16:9 | -LL | x?; - | ^^ cannot use the `?` operator in an async closure that returns `u32` +LL | let async_closure = async || { + | __________________________________- +LL | | let x: Option<u32> = None; +LL | | x?; + | | ^^ cannot use the `?` operator in an async closure that returns `u32` +LL | | 22_u32 +LL | | }; + | |_____- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `u32` = note: required by `std::ops::Try::from_error` @@ -19,8 +31,14 @@ LL | x?; error[E0277]: the `?` operator can only be used in an async function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/try-on-option-in-async.rs:25:5 | -LL | x?; - | ^^ cannot use the `?` operator in an async function that returns `u32` +LL | async fn an_async_function() -> u32 { + | _____________________________________- +LL | | let x: Option<u32> = None; +LL | | x?; + | | ^^ cannot use the `?` operator in an async function that returns `u32` +LL | | 22 +LL | | } + | |_- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `u32` = note: required by `std::ops::Try::from_error` diff --git a/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr b/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr index f24ea0505e7..1143bddfe45 100644 --- a/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr +++ b/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr @@ -575,8 +575,17 @@ LL | if (let 0 = 0)? {} error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/disallowed-positions.rs:46:8 | -LL | if (let 0 = 0)? {} - | ^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` +LL | / fn nested_within_if_expr() { +LL | | if &let 0 = 0 {} +LL | | +LL | | +... | +LL | | if (let 0 = 0)? {} + | | ^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` +... | +LL | | if let true = let true = true {} +LL | | } + | |_- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `()` = note: required by `std::ops::Try::from_error` @@ -754,8 +763,17 @@ LL | while (let 0 = 0)? {} error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/disallowed-positions.rs:110:11 | -LL | while (let 0 = 0)? {} - | ^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` +LL | / fn nested_within_while_expr() { +LL | | while &let 0 = 0 {} +LL | | +LL | | +... | +LL | | while (let 0 = 0)? {} + | | ^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` +... | +LL | | while let true = let true = true {} +LL | | } + | |_- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `()` = note: required by `std::ops::Try::from_error` @@ -924,8 +942,17 @@ LL | (let 0 = 0)?; error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/disallowed-positions.rs:183:5 | -LL | (let 0 = 0)?; - | ^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` +LL | / fn outside_if_and_while_expr() { +LL | | &let 0 = 0; +LL | | +LL | | !let 0 = 0; +... | +LL | | (let 0 = 0)?; + | | ^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` +... | +LL | | +LL | | } + | |_- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `()` = note: required by `std::ops::Try::from_error` diff --git a/src/test/ui/try-on-option-diagnostics.stderr b/src/test/ui/try-on-option-diagnostics.stderr index 4dd515e1b5a..ce3aca39fb8 100644 --- a/src/test/ui/try-on-option-diagnostics.stderr +++ b/src/test/ui/try-on-option-diagnostics.stderr @@ -1,8 +1,13 @@ error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/try-on-option-diagnostics.rs:7:5 | -LL | x?; - | ^^ cannot use the `?` operator in a function that returns `u32` +LL | / fn a_function() -> u32 { +LL | | let x: Option<u32> = None; +LL | | x?; + | | ^^ cannot use the `?` operator in a function that returns `u32` +LL | | 22 +LL | | } + | |_- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `u32` = note: required by `std::ops::Try::from_error` @@ -10,8 +15,14 @@ LL | x?; error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/try-on-option-diagnostics.rs:14:9 | -LL | x?; - | ^^ cannot use the `?` operator in a closure that returns `{integer}` +LL | let a_closure = || { + | _____________________- +LL | | let x: Option<u32> = None; +LL | | x?; + | | ^^ cannot use the `?` operator in a closure that returns `{integer}` +LL | | 22 +LL | | }; + | |_____- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `{integer}` = note: required by `std::ops::Try::from_error` diff --git a/src/test/ui/try-on-option.stderr b/src/test/ui/try-on-option.stderr index db5046f8c15..07615b52a48 100644 --- a/src/test/ui/try-on-option.stderr +++ b/src/test/ui/try-on-option.stderr @@ -10,8 +10,13 @@ LL | x?; error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/try-on-option.rs:13:5 | -LL | x?; - | ^^ cannot use the `?` operator in a function that returns `u32` +LL | / fn bar() -> u32 { +LL | | let x: Option<u32> = None; +LL | | x?; + | | ^^ cannot use the `?` operator in a function that returns `u32` +LL | | 22 +LL | | } + | |_- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `u32` = note: required by `std::ops::Try::from_error` diff --git a/src/test/ui/try-operator-on-main.stderr b/src/test/ui/try-operator-on-main.stderr index d2f1a04837b..d8ba264583e 100644 --- a/src/test/ui/try-operator-on-main.stderr +++ b/src/test/ui/try-operator-on-main.stderr @@ -1,8 +1,15 @@ error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `std::ops::Try`) --> $DIR/try-operator-on-main.rs:9:5 | -LL | std::fs::File::open("foo")?; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` +LL | / fn main() { +LL | | // error for a `Try` type on a non-`Try` fn +LL | | std::fs::File::open("foo")?; + | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()` +LL | | +... | +LL | | try_trait_generic::<()>(); +LL | | } + | |_- this function should return `Result` or `Option` to accept `?` | = help: the trait `std::ops::Try` is not implemented for `()` = note: required by `std::ops::Try::from_error` |
