mirror of https://github.com/rust-lang/rust
37 lines
971 B
Rust
37 lines
971 B
Rust
#![feature(decl_macro)]
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#[rustfmt::skip]
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macro x($macro_name:ident, $macro2_name:ident, $type_name:ident, $variant_name:ident) {
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#[repr(u8)]
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pub enum $type_name {
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Variant = 0,
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$variant_name = 1,
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}
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#[macro_export]
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macro_rules! $macro_name {
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() => {{
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assert_eq!($type_name::Variant as u8, 0);
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assert_eq!($type_name::$variant_name as u8, 1);
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assert_eq!(<$type_name>::Variant as u8, 0);
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assert_eq!(<$type_name>::$variant_name as u8, 1);
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}};
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}
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pub macro $macro2_name {
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() => {{
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assert_eq!($type_name::Variant as u8, 0);
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assert_eq!($type_name::$variant_name as u8, 1);
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assert_eq!(<$type_name>::Variant as u8, 0);
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assert_eq!(<$type_name>::$variant_name as u8, 1);
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}},
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}
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}
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x!(test_variants, test_variants2, MyEnum, Variant);
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pub fn check_variants() {
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test_variants!();
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test_variants2!();
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}
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