[rustc.git] / src / test / ui / proc-macro / expand-to-derive.rs

// check-pass
// compile-flags: -Z span-debug --error-format human
// aux-build:test-macros.rs

#![feature(rustc_attrs)]

#![no_std] // Don't load unnecessary hygiene information from std
extern crate std;

#[macro_use]
extern crate test_macros;

macro_rules! expand_to_derive {
    ($item:item) => {
        #[derive(Print)]
        struct Foo {
            #[cfg(FALSE)] removed: bool,
            field: [bool; {
                $item
                0
            }]
        }
    };
}

expand_to_derive! {
    #[cfg_attr(not(FALSE), rustc_dummy)]
    struct Inner {
        #[cfg(FALSE)] removed_inner_field: bool,
        other_inner_field: u8,
    }
}

fn main() {}
Commit	Line	Data
6a06907d XL	1	// check-pass
	2	// compile-flags: -Z span-debug --error-format human
	3	// aux-build:test-macros.rs
	4
	5	#![feature(rustc_attrs)]
	6
	7	#![no_std] // Don't load unnecessary hygiene information from std
	8	extern crate std;
	9
	10	#[macro_use]
	11	extern crate test_macros;
	12
	13	macro_rules! expand_to_derive {
	14	($item:item) => {
	15	#[derive(Print)]
	16	struct Foo {
	17	#[cfg(FALSE)] removed: bool,
	18	field: [bool; {
	19	$item
	20	0
	21	}]
	22	}
	23	};
	24	}
	25
	26	expand_to_derive! {
	27	#[cfg_attr(not(FALSE), rustc_dummy)]
	28	struct Inner {
	29	#[cfg(FALSE)] removed_inner_field: bool,
	30	other_inner_field: u8,
	31	}
	32	}
	33
	34	fn main() {}