rust/tests/ui/parser/issues/issue-104620.rs

#![feature(rustc_attrs)]

#![rustc_dummy=5z] //~ ERROR invalid suffix `z` for number literal
fn main() {}
Fix an ICE parsing a malformed attribute. Fixes #104620. 2022-11-22 16:48:42 +11:00			`#![feature(rustc_attrs)]`

Improve an error involving attribute values. 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. 2023-12-12 09:55:50 +11:00			#![rustc_dummy=5z] //~ ERROR invalid suffix `z` for number literal
Fix an ICE parsing a malformed attribute. Fixes #104620. 2022-11-22 16:48:42 +11:00			`fn main() {}`