mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-30 10:45:18 +00:00
226edf64fa
Attribute values must be literals. The error you get when that doesn't hold is pretty bad, e.g.: ``` unexpected expression: 1 + 1 ``` You also get the same error if the attribute value is a literal, but an invalid literal, e.g.: ``` unexpected expression: "foo"suffix ``` This commit does two things. - Changes the error message to "attribute value must be a literal", which gives a better idea of what the problem is and how to fix it. It also no longer prints the invalid expression, because the carets below highlight it anyway. - Separates the "not a literal" case from the "invalid literal" case. Which means invalid literals now get the specific error at the literal level, rather than at the attribute level.
11 lines
386 B
Rust
11 lines
386 B
Rust
#![l=|x|[b;x ]] //~ ERROR attribute value must be a literal
|
|
//~^ ERROR cannot find attribute `l` in this scope
|
|
|
|
// notice the space at the start,
|
|
// we can't attach any attributes to this file because it needs to be at the start
|
|
|
|
// this example has been slightly modified (adding ]] at the end), so that it actually works here
|
|
// it still produces the same issue though
|
|
|
|
fn main() {}
|