7 files changed, 20 insertions, 10 deletions
diff --git a/tests/expectations/tests/anon_enum_trait.rs b/tests/expectations/tests/anon_enum_trait.rs
index 699d49c2..38ed0268 100644
--- a/tests/expectations/tests/anon_enum_trait.rs
+++ b/tests/expectations/tests/anon_enum_trait.rs
@@ -5,7 +5,7 @@
 
 
 #[repr(C)]
-#[derive(Debug, Default, Copy, Clone)]
+#[derive(Debug, Default, Copy, Clone, Hash)]
 pub struct DataType {
     pub _address: u8,
 }
@@ -27,7 +27,7 @@ pub const DataType_type_: DataType__bindgen_ty_1 =
 #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
 pub enum DataType__bindgen_ty_1 { generic_type = 0, }
 #[repr(C)]
-#[derive(Debug, Default, Copy)]
+#[derive(Debug, Default, Copy, Hash)]
 pub struct Foo {
     pub _address: u8,
 }
diff --git a/tests/expectations/tests/anon_struct_in_union.rs b/tests/expectations/tests/anon_struct_in_union.rs
index bfb10015..b4820319 100644
--- a/tests/expectations/tests/anon_struct_in_union.rs
+++ b/tests/expectations/tests/anon_struct_in_union.rs
@@ -28,19 +28,22 @@ impl <T> ::std::fmt::Debug for __BindgenUnionField<T> {
         fmt.write_str("__BindgenUnionField")
     }
 }
+impl <T> ::std::hash::Hash for __BindgenUnionField<T> {
+    fn hash<H: ::std::hash::Hasher>(&self, _state: &mut H) { }
+}
 #[repr(C)]
-#[derive(Debug, Default, Copy)]
+#[derive(Debug, Default, Copy, Hash)]
 pub struct s {
     pub u: s__bindgen_ty_1,
 }
 #[repr(C)]
-#[derive(Debug, Default, Copy)]
+#[derive(Debug, Default, Copy, Hash)]
 pub struct s__bindgen_ty_1 {
     pub field: __BindgenUnionField<s__bindgen_ty_1_inner>,
     pub bindgen_union_field: u32,
 }
 #[repr(C)]
-#[derive(Debug, Default, Copy)]
+#[derive(Debug, Default, Copy, Hash)]
 pub struct s__bindgen_ty_1_inner {
     pub b: ::std::os::raw::c_int,
 }
diff --git a/tests/expectations/tests/anon_union.rs b/tests/expectations/tests/anon_union.rs
index 97cd40f5..71c2d4f7 100644
--- a/tests/expectations/tests/anon_union.rs
+++ b/tests/expectations/tests/anon_union.rs
@@ -28,8 +28,11 @@ impl <T> ::std::fmt::Debug for __BindgenUnionField<T> {
         fmt.write_str("__BindgenUnionField")
     }
 }
+impl <T> ::std::hash::Hash for __BindgenUnionField<T> {
+    fn hash<H: ::std::hash::Hasher>(&self, _state: &mut H) { }
+}
 #[repr(C)]
-#[derive(Debug, Copy, Clone)]
+#[derive(Debug, Copy, Clone, Hash)]
 pub struct TErrorResult {
     pub mResult: ::std::os::raw::c_int,
     pub __bindgen_anon_1: TErrorResult__bindgen_ty_1,
@@ -42,17 +45,17 @@ pub const TErrorResult_UnionState_HasException: TErrorResult_UnionState =
 #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
 pub enum TErrorResult_UnionState { HasMessage = 0, }
 #[repr(C)]
-#[derive(Debug, Default, Copy, Clone)]
+#[derive(Debug, Default, Copy, Clone, Hash)]
 pub struct TErrorResult_Message {
     pub _address: u8,
 }
 #[repr(C)]
-#[derive(Debug, Default, Copy, Clone)]
+#[derive(Debug, Default, Copy, Clone, Hash)]
 pub struct TErrorResult_DOMExceptionInfo {
     pub _address: u8,
 }
 #[repr(C)]
-#[derive(Debug, Default, Copy, Clone)]
+#[derive(Debug, Default, Copy, Clone, Hash)]
 pub struct TErrorResult__bindgen_ty_1 {
     pub mMessage: __BindgenUnionField<*mut TErrorResult_Message>,
     pub mDOMExceptionInfo: __BindgenUnionField<*mut TErrorResult_DOMExceptionInfo>,
@@ -62,7 +65,7 @@ impl Default for TErrorResult {
     fn default() -> Self { unsafe { ::std::mem::zeroed() } }
 }
 #[repr(C)]
-#[derive(Debug, Copy)]
+#[derive(Debug, Copy, Hash)]
 pub struct ErrorResult {
     pub _base: TErrorResult,
 }
diff --git a/tests/headers/anon_enum.hpp b/tests/headers/anon_enum.hpp
index 1961fe6c..1a55a8d1 100644
--- a/tests/headers/anon_enum.hpp
+++ b/tests/headers/anon_enum.hpp
@@ -1,3 +1,4 @@
+// bindgen-flags: --with-derive-hash
 struct Test {
   int foo;
   float bar;
diff --git a/tests/headers/anon_enum_trait.hpp b/tests/headers/anon_enum_trait.hpp
index e1ec394c..22137392 100644
--- a/tests/headers/anon_enum_trait.hpp
+++ b/tests/headers/anon_enum_trait.hpp
@@ -1,3 +1,4 @@
+// bindgen-flags: --with-derive-hash
 
 template<typename _Tp>
 class DataType {
diff --git a/tests/headers/anon_struct_in_union.h b/tests/headers/anon_struct_in_union.h
index 880a8b54..2e6ac5e9 100644
--- a/tests/headers/anon_struct_in_union.h
+++ b/tests/headers/anon_struct_in_union.h
@@ -1,3 +1,4 @@
+// bindgen-flags: --with-derive-hash
 struct s {
   union {
     struct inner {
diff --git a/tests/headers/anon_union.hpp b/tests/headers/anon_union.hpp
index 126f6a6e..26bb842f 100644
--- a/tests/headers/anon_union.hpp
+++ b/tests/headers/anon_union.hpp
@@ -1,3 +1,4 @@
+// bindgen-flags: --with-derive-hash
 template<typename T>
 struct TErrorResult {
   enum UnionState {