//@ run-pass #![allow(unused_macro_rules)] //{{{ issue 40569 ============================================================== macro_rules! my_struct { ($(#[$meta:meta])* $ident:ident) => { $(#[$meta])* struct $ident; } } my_struct!(#[derive(Debug, PartialEq)] Foo40569); fn test_40569() { assert_eq!(Foo40569, Foo40569); } //}}} //{{{ issue 26444 ============================================================== macro_rules! foo_26444 { ($($beginning:ident),*; $middle:ident; $($end:ident),*) => { stringify!($($beginning,)* $middle $(,$end)*) } } fn test_26444() { assert_eq!("a, b, c, d, e", foo_26444!(a, b; c; d, e)); assert_eq!("f", foo_26444!(; f ;)); } macro_rules! pat_26444 { ($fname:ident $($arg:pat)* =) => {} } pat_26444!(foo 1 2 5...7 =); pat_26444!(bar Some(ref x) Ok(ref mut y) &(w, z) =); //}}} //{{{ issue 40984 ============================================================== macro_rules! thread_local_40984 { () => {}; ($(#[$attr:meta])* $vis:vis static $name:ident: $t:ty = $init:expr; $($rest:tt)*) => { thread_local_40984!($($rest)*); }; ($(#[$attr:meta])* $vis:vis static $name:ident: $t:ty = $init:expr) => {}; } thread_local_40984! { // no docs #[allow(unused)] static FOO: i32 = 42; /// docs pub static BAR: String = String::from("bar"); // look at these restrictions!! pub(crate) static BAZ: usize = 0; pub(in foo) static QUUX: usize = 0; } //}}} //{{{ issue 35650 ============================================================== macro_rules! size { ($ty:ty) => { std::mem::size_of::<$ty>() }; ($size:tt) => { $size }; } fn test_35650() { assert_eq!(size!(u64), 8); assert_eq!(size!(5), 5); } //}}} //{{{ issue 27832 ============================================================== macro_rules! m { ( $i:ident ) => (); ( $t:tt $j:tt ) => (); } m!(c); m!(t 9); m!(0 9); m!(struct); m!(struct Foo); macro_rules! m2 { ( $b:expr ) => (); ( $t:tt $u:tt ) => (); } m2!(3); m2!(1 2); m2!(_ 1); m2!(enum Foo); //}}} //{{{ issue 39964 ============================================================== macro_rules! foo_39964 { ($a:ident) => {}; (_) => {}; } foo_39964!(_); //}}} //{{{ issue 34030 ============================================================== macro_rules! foo_34030 { ($($t:ident),* /) => {}; } foo_34030!(a, b/); foo_34030!(a/); foo_34030!(/); //}}} //{{{ issue 24189 ============================================================== macro_rules! foo_24189 { ( pub enum $name:ident { $( #[$attr:meta] )* $var:ident } ) => { pub enum $name { $( #[$attr] )* $var } }; } foo_24189! { pub enum Foo24189 { #[doc = "Bar"] Baz } } macro_rules! serializable { ( $(#[$struct_meta:meta])* pub struct $name:ident { $( $(#[$field_meta:meta])* $field:ident: $type_:ty ),* , } ) => { $(#[$struct_meta])* pub struct $name { $( $(#[$field_meta])* $field: $type_ ),* , } } } serializable! { #[allow(dead_code)] /// This is a test pub struct Tester { #[allow(dead_code)] name: String, } } macro_rules! foo_24189_c { ( $( > )* $x:ident ) => { }; } foo_24189_c!( > a ); fn test_24189() { let _ = Foo24189::Baz; let _ = Tester { name: "".to_owned() }; } //}}} //{{{ issue 50903 ============================================================== macro_rules! foo_50903 { ($($lif:lifetime ,)* #) => {}; } foo_50903!('a, 'b, #); foo_50903!('a, #); foo_50903!(#); //}}} //{{{ issue 51477 ============================================================== macro_rules! foo_51477 { ($lifetime:lifetime) => { "last token is lifetime" }; ($other:tt) => { "last token is other" }; ($first:tt $($rest:tt)*) => { foo_51477!($($rest)*) }; } fn test_51477() { assert_eq!("last token is lifetime", foo_51477!('a)); assert_eq!("last token is other", foo_51477!(@)); assert_eq!("last token is lifetime", foo_51477!(@ {} 'a)); } //}}} //{{{ some more tests ========================================================== macro_rules! test_block { (< $($b:block)* >) => {} } test_block!(<>); test_block!(<{}>); test_block!(<{1}{2}>); macro_rules! test_ty { ($($t:ty),* $(,)*) => {} } test_ty!(); test_ty!(,); test_ty!(u8); test_ty!(u8,); macro_rules! test_path { ($($t:path),* $(,)*) => {} } test_path!(); test_path!(,); test_path!(::std); test_path!(std::ops,); test_path!(any, super, super::super::self::path, X::Z<'a, T=U>); macro_rules! test_lifetime { (1. $($l:lifetime)* $($b:block)*) => {}; (2. $($b:block)* $($l:lifetime)*) => {}; } test_lifetime!(1. 'a 'b {} {}); test_lifetime!(2. {} {} 'a 'b); //}}} fn main() { test_26444(); test_40569(); test_35650(); test_24189(); test_51477(); }