diff options
| -rw-r--r-- | src/test/ui/typeck/issue-104582.rs | 5 | ||||
| -rw-r--r-- | src/test/ui/typeck/issue-104582.stderr | 25 |
2 files changed, 30 insertions, 0 deletions
diff --git a/src/test/ui/typeck/issue-104582.rs b/src/test/ui/typeck/issue-104582.rs new file mode 100644 index 00000000000..104669dadbe --- /dev/null +++ b/src/test/ui/typeck/issue-104582.rs @@ -0,0 +1,5 @@ +fn main(){ + let my_var: String(String?); + //~^ ERROR: invalid `?` in type + //~| ERROR: parenthesized type parameters may only be used with a `Fn` trait +} diff --git a/src/test/ui/typeck/issue-104582.stderr b/src/test/ui/typeck/issue-104582.stderr new file mode 100644 index 00000000000..61b6b23642c --- /dev/null +++ b/src/test/ui/typeck/issue-104582.stderr @@ -0,0 +1,25 @@ +error: invalid `?` in type + --> $DIR/issue-104582.rs:2:30 + | +LL | let my_var: String(String?); + | ^ `?` is only allowed on expressions, not types + | +help: if you meant to express that the type might not contain a value, use the `Option` wrapper type + | +LL | let my_var: String(Option<String>); + | +++++++ ~ + +error[E0214]: parenthesized type parameters may only be used with a `Fn` trait + --> $DIR/issue-104582.rs:2:17 + | +LL | let my_var: String(String?); + | ^^^^^^^^^^^^^^^ only `Fn` traits may use parentheses + | +help: use angle brackets instead + | +LL | let my_var: String<String?>; + | ~ ~ + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0214`. |