err_msg: &str,
) -> Option<(Symbol, ast::StrStyle)> {
expr_to_spanned_string(cx, expr, err_msg)
- .map_err(|err| err.map(|mut err| err.emit()))
+ .map_err(|err| {
+ err.map(|mut err| {
+ err.emit();
+ })
+ })
.ok()
.map(|(symbol, style, _)| (symbol, style))
}