Add support for transparent and packed(N) types

Cargo.toml

@@ -15,7 +15,7 @@ Automated tests of FFI bindings.
 """
 
 [dependencies]
-syntex_syntax2 = "0.0.1"
+syntex_syntax2 = "0.0.2"
 cc = "1.0.1"
 rustc_version = "0.2"
 

src/lib.rs

@@ -2052,7 +2052,7 @@ impl<'a, 'v> Visitor<'v> for Generator<'a> {
                 let is_c = i.attrs.iter().any(|a| {
                     attr::find_repr_attrs(self.sh, a)
                         .iter()
-                        .any(|a| *a == ReprAttr::ReprExtern /*|| *a == ReprAttr::ReprTransparent*/)
+                        .any(|a| *a == ReprAttr::ReprExtern || *a == ReprAttr::ReprTransparent)
                 });
                 if !is_c && !(self.opts.skip_struct)(&i.ident.to_string()) {
                     panic!("{} is not marked #[repr(C)]", i.ident);

testcrate/build.rs

@@ -21,6 +21,7 @@ fn main() {
         .fn_cname(|a, b| b.unwrap_or(a).to_string())
         .type_name(move |ty, is_struct, is_union| match ty {
             "T1Union" => ty.to_string(),
+            "Transparent" => ty.to_string(),
             t if is_struct => format!("struct {}", t),
             t if is_union => format!("union {}", t),
             t => t.to_string(),
@@ -46,6 +47,7 @@ fn main() {
         .fn_cname(|a, b| b.unwrap_or(a).to_string())
         .type_name(move |ty, is_struct, is_union| match ty {
             "T1Union" => ty.to_string(),
+            "Transparent" => ty.to_string(),
             t if is_struct => format!("struct {}", t),
             t if is_union => format!("union {}", t),
             t => t.to_string(),

testcrate/src/t1.h

@@ -51,6 +51,7 @@ void T1o(int32_t (*a)[4]);
 void T1p(int32_t (*const a)[4]);
 
 typedef int32_t (Arr)[4];
+typedef int32_t Transparent;
 
 void T1r(Arr a);
 void T1s(const Arr a);

testcrate/src/t1.rs

@@ -46,8 +46,8 @@ pub struct T1StructWithUnion {
     pub u: T1NoTypedefUnion,
 }
 
-// #[repr(transparent)]
-// pub struct Transparent(i32);
+#[repr(transparent)]
+pub struct Transparent(i32);
 
 pub type T1TypedefDouble = c_double;
 pub type T1TypedefPtr = *mut c_int;