diff options
Diffstat (limited to 'tests/rust/const_generics_byte.rs')
-rw-r--r-- | tests/rust/const_generics_byte.rs | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/rust/const_generics_byte.rs b/tests/rust/const_generics_byte.rs new file mode 100644 index 0000000..e150567 --- /dev/null +++ b/tests/rust/const_generics_byte.rs @@ -0,0 +1,29 @@ +// Name mangling can cope with char-like byte literals. + +#[repr(C)] +pub struct Parser<const OPEN: u8, const CLOSE: u8> { + pub buf: *mut u8, + pub len: usize, +} + +#[no_mangle] +pub unsafe extern "C" fn init_parens_parser(p: *mut Parser<b'(', b')'>, buf: *mut u8, len: usize) { + unsafe { + *p = Parser { buf, len }; + } +} + +// The same type as above, because `b'(' == 40 && b')' == 41`. And it happens +// to mangle to the same C identifier. It doesn't always work out that way! +#[no_mangle] +pub unsafe extern "C" fn destroy_parens_parser(p: *mut Parser<40, 41>) { + // nothing to do +} + + +#[no_mangle] +pub unsafe extern "C" fn init_braces_parser(p: *mut Parser<b'{', b'}'>, buf: *mut u8, len: usize) { + unsafe { + *p = Parser { buf, len }; + } +} |