error[E0317]: `if` may be missing an `else` clause --> $DIR/if-without-else-result.rs:2:13 | LL | let a = if true { true }; | ^^^^^^^^^^----^^ | | | | | found here | expected `bool`, found `()` | = note: `if` expressions without `else` evaluate to `()` = help: consider adding an `else` block that evaluates to the expected type error: aborting due to previous error For more information about this error, try `rustc --explain E0317`.