Implement mangling for arrays

src/bindgen/mangle.rs

@@ -27,6 +27,8 @@ enum Separator {
     BeginFn,
     BetweenFnArg,
     EndFn,
+    BeginArray,
+    BetweenArray,
 }
 
 struct Mangler<'a> {
@@ -128,12 +130,11 @@ impl<'a> Mangler<'a> {
                     self.push(Separator::EndFn);
                 }
             }
-            Type::Array(..) => {
-                unimplemented!(
-                    "Unable to mangle generic parameter {:?} for '{}'",
-                    ty,
-                    self.input
-                );
+            Type::Array(ref ty, ref len) => {
+                self.push(Separator::BeginArray);
+                self.append_mangled_type(ty, false);
+                self.push(Separator::BetweenArray);
+                self.append_mangled_argument(&GenericArgument::Const(len.clone()), last);
             }
         }
     }

tests/expectations/generic_pointer.c

@@ -9,4 +9,10 @@ typedef struct {
 
 typedef Foo_____u8 Boo;
 
+typedef struct {
+  uint8_t a[4];
+} Foo__________u8__________4;
+
 void root(Boo x);
+
+void my_function(Foo__________u8__________4 x);

tests/expectations/generic_pointer.compat.c

@@ -9,12 +9,18 @@ typedef struct {
 
 typedef Foo_____u8 Boo;
 
+typedef struct {
+  uint8_t a[4];
+} Foo__________u8__________4;
+
 #ifdef __cplusplus
 extern "C" {
 #endif // __cplusplus
 
 void root(Boo x);
 
+void my_function(Foo__________u8__________4 x);
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif  // __cplusplus

tests/expectations/generic_pointer.cpp

@@ -15,4 +15,6 @@ extern "C" {
 
 void root(Boo x);
 
+void my_function(Foo<uint8_t[4]> x);
+
 }  // extern "C"

tests/expectations/generic_pointer.pyx

@@ -11,4 +11,9 @@ cdef extern from *:
 
   ctypedef Foo_____u8 Boo;
 
+  ctypedef struct Foo__________u8__________4:
+    uint8_t a[4];
+
   void root(Boo x);
+
+  void my_function(Foo__________u8__________4 x);

tests/expectations/generic_pointer_both.c

@@ -9,4 +9,10 @@ typedef struct Foo_____u8 {
 
 typedef struct Foo_____u8 Boo;
 
+typedef struct Foo__________u8__________4 {
+  uint8_t a[4];
+} Foo__________u8__________4;
+
 void root(Boo x);
+
+void my_function(struct Foo__________u8__________4 x);

tests/expectations/generic_pointer_both.compat.c

@@ -9,12 +9,18 @@ typedef struct Foo_____u8 {
 
 typedef struct Foo_____u8 Boo;
 
+typedef struct Foo__________u8__________4 {
+  uint8_t a[4];
+} Foo__________u8__________4;
+
 #ifdef __cplusplus
 extern "C" {
 #endif // __cplusplus
 
 void root(Boo x);
 
+void my_function(struct Foo__________u8__________4 x);
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif  // __cplusplus

tests/expectations/generic_pointer_tag.c

@@ -9,4 +9,10 @@ struct Foo_____u8 {
 
 typedef struct Foo_____u8 Boo;
 
+struct Foo__________u8__________4 {
+  uint8_t a[4];
+};
+
 void root(Boo x);
+
+void my_function(struct Foo__________u8__________4 x);

tests/expectations/generic_pointer_tag.compat.c

@@ -9,12 +9,18 @@ struct Foo_____u8 {
 
 typedef struct Foo_____u8 Boo;
 
+struct Foo__________u8__________4 {
+  uint8_t a[4];
+};
+
 #ifdef __cplusplus
 extern "C" {
 #endif // __cplusplus
 
 void root(Boo x);
 
+void my_function(struct Foo__________u8__________4 x);
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif  // __cplusplus

tests/expectations/generic_pointer_tag.pyx

@@ -11,4 +11,9 @@ cdef extern from *:
 
   ctypedef Foo_____u8 Boo;
 
+  cdef struct Foo__________u8__________4:
+    uint8_t a[4];
+
   void root(Boo x);
+
+  void my_function(Foo__________u8__________4 x);

tests/rust/generic_pointer.rs

@@ -9,3 +9,6 @@ pub type Boo = Foo<*mut u8>;
 pub extern "C" fn root(
     x: Boo,
 ) { }
+
+#[no_mangle]
+pub extern "C" fn my_function(x: Foo<[u8; 4]>) {}