// Anything else is always required, and thus has to error out
// in case of a cfg attr.
//
- // NB: This is intentionally not part of the fold_expr() function
+ // N.B., this is intentionally not part of the fold_expr() function
// in order for fold_opt_expr() to be able to avoid this check
if let Some(attr) = expr.attrs().iter().find(|a| is_cfg(a)) {
let msg = "removing an expression is not supported in this position";
}
fn fold_mac(&mut self, mac: ast::Mac) -> ast::Mac {
- // Don't configure interpolated AST (c.f. #34171).
+ // Don't configure interpolated AST (cf. issue #34171).
// Interpolated AST will get configured once the surrounding tokens are parsed.
mac
}