Add test for union templates without using template parameters.

2 files changed, 105 insertions, 0 deletions

diff --git a/tests/expectations/union_template.rs b/tests/expectations/union_template.rs
new file mode 100644
index 00000000..eb6705f0
--- /dev/null
+++ b/tests/expectations/union_template.rs
@@ -0,0 +1,86 @@
+/* automatically generated by rust-bindgen */
+
+
+#![allow(non_snake_case)]
+
+
+#[derive(Copy, Debug)]
+#[repr(C)]
+pub struct __BindgenUnionField<T>(::std::marker::PhantomData<T>);
+impl <T> __BindgenUnionField<T> {
+    #[inline]
+    pub fn new() -> Self { __BindgenUnionField(::std::marker::PhantomData) }
+    #[inline]
+    pub unsafe fn as_ref(&self) -> &T { ::std::mem::transmute(self) }
+    #[inline]
+    pub unsafe fn as_mut(&mut self) -> &mut T { ::std::mem::transmute(self) }
+}
+impl <T> ::std::default::Default for __BindgenUnionField<T> {
+    #[inline]
+    fn default() -> Self { Self::new() }
+}
+impl <T> ::std::clone::Clone for __BindgenUnionField<T> {
+    #[inline]
+    fn clone(&self) -> Self { Self::new() }
+}
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct Struct_NastyStruct<T> {
+    pub mIsSome: bool,
+    pub mStorage: Union_NastyStruct_union_template_hpp_unnamed_1<T>,
+    pub NastyStruct_union_template_hpp_unnamed_2: Union_NastyStruct_union_template_hpp_unnamed_2<T>,
+}
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct Union_NastyStruct_union_template_hpp_unnamed_1<T> {
+    pub mFoo: __BindgenUnionField<*mut ::std::os::raw::c_void>,
+    pub mDummy: __BindgenUnionField<::std::os::raw::c_ulong>,
+    pub _bindgen_data_: u64,
+    pub _phantom0: ::std::marker::PhantomData<T>,
+}
+impl <T> Union_NastyStruct_union_template_hpp_unnamed_1<T> {
+    pub unsafe fn mFoo(&mut self) -> *mut *mut ::std::os::raw::c_void {
+        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
+        ::std::mem::transmute(raw.offset(0))
+    }
+    pub unsafe fn mDummy(&mut self) -> *mut ::std::os::raw::c_ulong {
+        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
+        ::std::mem::transmute(raw.offset(0))
+    }
+}
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct Union_NastyStruct_union_template_hpp_unnamed_2<T> {
+    pub wat: __BindgenUnionField<::std::os::raw::c_short>,
+    pub wut: __BindgenUnionField<*mut ::std::os::raw::c_int>,
+    pub _bindgen_data_: u64,
+    pub _phantom0: ::std::marker::PhantomData<T>,
+}
+impl <T> Union_NastyStruct_union_template_hpp_unnamed_2<T> {
+    pub unsafe fn wat(&mut self) -> *mut ::std::os::raw::c_short {
+        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
+        ::std::mem::transmute(raw.offset(0))
+    }
+    pub unsafe fn wut(&mut self) -> *mut *mut ::std::os::raw::c_int {
+        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
+        ::std::mem::transmute(raw.offset(0))
+    }
+}
+#[repr(C)]
+#[derive(Debug, Copy, Clone)]
+pub struct Union_Whatever<T> {
+    pub mTPtr: __BindgenUnionField<*mut ::std::os::raw::c_void>,
+    pub mInt: __BindgenUnionField<::std::os::raw::c_int>,
+    pub _bindgen_data_: u64,
+    pub _phantom0: ::std::marker::PhantomData<T>,
+}
+impl <T> Union_Whatever<T> {
+    pub unsafe fn mTPtr(&mut self) -> *mut *mut ::std::os::raw::c_void {
+        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
+        ::std::mem::transmute(raw.offset(0))
+    }
+    pub unsafe fn mInt(&mut self) -> *mut ::std::os::raw::c_int {
+        let raw: *mut u8 = ::std::mem::transmute(&self._bindgen_data_);
+        ::std::mem::transmute(raw.offset(0))
+    }
+}
diff --git a/tests/headers/union_template.hpp b/tests/headers/union_template.hpp
new file mode 100644
index 00000000..0d0a9bb3
--- /dev/null
+++ b/tests/headers/union_template.hpp
@@ -0,0 +1,19 @@
+template<typename T>
+struct NastyStruct {
+  bool mIsSome;
+  union {
+    void* mFoo;
+    unsigned long mDummy;
+  } mStorage;
+
+  union {
+    short wat;
+    int* wut;
+  };
+};
+
+template<typename T>
+union Whatever {
+  void* mTPtr;
+  int mInt;
+};