Closed
Description
Code
fn main() {
let f: Box<dyn Fn() -> (i32, i32)> = Box::new(|| -> (i32, i32) (1, 2));
}
Current output
error: this is a block expression, not an array
--> src/main.rs:2:68
|
2 | let f: Box<dyn Fn() -> (i32, i32)> = Box::new(|| -> (i32, i32) (1, 2));
| ^^^^^
|
help: to make an array, use square brackets instead of curly braces
|
2 - let f: Box<dyn Fn() -> (i32, i32)> = Box::new(|| -> (i32, i32) (1, 2));
2 + let f: Box<dyn Fn() -> (i32, i32)> = Box::new(|| -> (i32, i32) [1, ]));
|
error: expected one of `.`, `;`, `?`, `else`, or an operator, found `)`
--> src/main.rs:2:74
|
2 | let f: Box<dyn Fn() -> (i32, i32)> = Box::new(|| -> (i32, i32) (1, 2));
| ^ expected one of `.`, `;`, `?`, `else`, or an operator
Desired output
Rationale and extra context
No response
Other cases
Rust Version
rustc 1.87.0-nightly (1aeb99d24 2025-03-19)
binary: rustc
commit-hash: 1aeb99d248e1b0069110cb03c6f1dcc7b36fd7f3
commit-date: 2025-03-19
host: x86_64-unknown-linux-gnu
release: 1.87.0-nightly
LLVM version: 20.1.0
Anything else?
No response