Esteban Küber a16722d221 Handle attempts to have multiple cfgd tail expressions ... When encountering code that seems like it might be trying to have multiple tail expressions depending on `cfg` information, suggest alternatives that will success to parse. ```rust fn foo() -> String { #[cfg(feature = "validation")] [1, 2, 3].iter().map(|c| c.to_string()).collect::<String>() #[cfg(not(feature = "validation"))] String::new() } ``` ``` error: expected `;`, found `#` --> $DIR/multiple-tail-expr-behind-cfg.rs:5:64 | LL | #[cfg(feature = "validation")] | ------------------------------ only `;` terminated statements or tail expressions are allowed after this attribute LL | [1, 2, 3].iter().map(|c| c.to_string()).collect::<String>() | ^ expected `;` here LL | #[cfg(not(feature = "validation"))] | - unexpected token | help: add `;` here | LL | [1, 2, 3].iter().map(|c| c.to_string()).collect::<String>(); | + help: alternatively, consider surrounding the expression with a block | LL | { [1, 2, 3].iter().map(|c| c.to_string()).collect::<String>() } | + + help: it seems like you are trying to provide different expressions depending on `cfg`, consider using `if cfg!(..)` | LL ~ if cfg!(feature = "validation") { LL ~ [1, 2, 3].iter().map(|c| c.to_string()).collect::<String>() LL ~ } else if cfg!(not(feature = "validation")) { LL ~ String::new() LL + } | ``` Fix #106020.		2023-11-16 21:21:26 +00:00
..
attr_wrapper.rs	Adjust to_attr_token_stream.	2023-09-06 17:12:07 +10:00
attr.rs	Avoid too many expected symbols and reduce Nones	2023-08-03 08:56:31 +00:00
diagnostics.rs	Handle attempts to have multiple cfgd tail expressions	2023-11-16 21:21:26 +00:00
expr.rs	Suggest fix for ; within let-chains	2023-11-09 00:31:42 -08:00
generics.rs	fix couple of clippy findings:	2023-07-23 10:50:14 +02:00
item.rs	Rollup merge of #117282 - clubby789:recover-wrong-function-header, r=TaKO8Ki	2023-11-08 17:14:36 +01:00
mod.rs	Re-format code with new rustfmt	2023-11-15 21:45:48 -05:00
nonterminal.rs	Format all the let chains in compiler	2023-10-13 08:59:36 +00:00
pat.rs	Minimize pub usage in source_map.rs.	2023-11-02 19:35:00 +11:00
path.rs	Minimize pub usage in source_map.rs.	2023-11-02 19:35:00 +11:00
stmt.rs	Handle attempts to have multiple cfgd tail expressions	2023-11-16 21:21:26 +00:00
ty.rs	Fix some typos	2023-11-14 23:06:50 +08:00