//! Ensure that macros produce an error if fragment specifiers are missing. macro_rules! used_arm { ( $( any_token $field_rust_type )* ) => {}; //~ ERROR missing fragment } macro_rules! used_macro_unused_arm { () => {}; ( $name ) => {}; //~ ERROR missing fragment } macro_rules! unused_macro { ( $name ) => {}; //~ ERROR missing fragment } fn main() { used_arm!(); used_macro_unused_arm!(); }