Rust errors / Const, static and compile-time
Rust compiler error · checked with rustc 1.99.0
Rust error E0697: closures cannot be static
What it meansA closure has been used as static.
What rustc prints
error[E0697]: closures cannot be static
--> main.rs:2:5
|
2 | static || {}; // used as `static`
| ^^^^^^^^^Real output of rustc 1.99.0 compiling the official example below (2021 edition). Your names and line numbers will differ; the first line is the part to match.
The compiler team's explanation
A closure has been used as static.
Erroneous code example:
fn main() {
static || {}; // used as `static`
}Closures cannot be used as static. They "save" the environment, and as such a static closure would save only a static environment which would consist only of variables with a static lifetime. Given this it would be better to use a proper function. The easiest fix is to remove the static keyword.
From rustc --explain E0697 (1.99.0), part of the Rust project, MIT or Apache-2.0. Official page.
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