- fn test_assert_expand() {

- check_expansion(

- r#"

- #[rustc_builtin_macro]

- macro_rules! assert {

- ($cond:expr) => ({ /* compiler built-in */ });

- ($cond:expr, $($args:tt)*) => ({ /* compiler built-in */ })

- }

- assert!(true, "{} {:?}", arg1(a, b, c), arg2);

- "#,

- expect![[r#"{if!true{$crate::panic!("{} {:?}",arg1(a,b,c),arg2);}}"#]],

- );

- }

-

- #[test]

- fn test_compile_error_expand() {

- check_expansion(

- r#"

- #[rustc_builtin_macro]

- macro_rules! compile_error {

- ($msg:expr) => ({ /* compiler built-in */ });

- ($msg:expr,) => ({ /* compiler built-in */ })

- }

- compile_error!("error!");

- "#,

- // This expands to nothing (since it's in item position), but emits an error.

- expect![[""]],

- );

- }

-

- #[test]

- fn test_format_args_expand() {

- check_expansion(

- r#"

- #[rustc_builtin_macro]

- macro_rules! format_args {

- ($fmt:expr) => ({ /* compiler built-in */ });

- ($fmt:expr, $($args:tt)*) => ({ /* compiler built-in */ })

- }

- format_args!("{} {:?}", arg1(a, b, c), arg2);

- "#,

- expect![[

- r#"unsafe{std::fmt::Arguments::new_v1(&[], &[std::fmt::ArgumentV1::new(&(arg1(a,b,c)),std::fmt::Display::fmt),std::fmt::ArgumentV1::new(&(arg2),std::fmt::Display::fmt),])}"#

- ]],

- );

- }

-

- #[test]

- fn test_format_args_expand_with_comma_exprs() {

- check_expansion(

- r#"

- #[rustc_builtin_macro]

- macro_rules! format_args {

- ($fmt:expr) => ({ /* compiler built-in */ });

- ($fmt:expr, $($args:tt)*) => ({ /* compiler built-in */ })

- }

- format_args!("{} {:?}", a::<A,B>(), b);

- "#,

- expect![[

- r#"unsafe{std::fmt::Arguments::new_v1(&[], &[std::fmt::ArgumentV1::new(&(a::<A,B>()),std::fmt::Display::fmt),std::fmt::ArgumentV1::new(&(b),std::fmt::Display::fmt),])}"#

- ]],

- );

- }

-

- #[test]

- fn test_format_args_expand_with_broken_member_access() {

- check_expansion(

- r#"

- #[rustc_builtin_macro]

- macro_rules! format_args {

- ($fmt:expr) => ({ /* compiler built-in */ });

- ($fmt:expr, $($args:tt)*) => ({ /* compiler built-in */ })

- }

- format_args!("{} {:?}", a.);

- "#,

- expect![[

- r#"unsafe{std::fmt::Arguments::new_v1(&[], &[std::fmt::ArgumentV1::new(&(a.),std::fmt::Display::fmt),])}"#

- ]],

- );

- }

-

- #[test]