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-rw-r--r--tests/rust/const_generics_byte.rs29
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 };
+ }
+}