| error: expected expression, found `let` statement | |
| --> $DIR/macro-expanded.rs:7:20 | |
| | | |
| LL | ($e:expr) => { let Some(x) = $e } | |
| | ^^^ | |
| ... | |
| LL | () if m!(Some(5)) => {} | |
| | ----------- in this macro invocation | |
| | | |
| = note: only supported directly in conditions of `if` and `while` expressions | |
| = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) | |
| error: aborting due to 1 previous error | |