Can derive PartialEq analysis

1 files changed, 16 insertions, 2 deletions

diff --git a/src/codegen/mod.rs b/src/codegen/mod.rs
index 6113e5d5..1e4a5d48 100644
--- a/src/codegen/mod.rs
+++ b/src/codegen/mod.rs
@@ -14,7 +14,7 @@ use ir::comment;
 use ir::comp::{Base, Bitfield, BitfieldUnit, CompInfo, CompKind, Field,
                FieldData, FieldMethods, Method, MethodKind};
 use ir::context::{BindgenContext, ItemId};
-use ir::derive::{CanDeriveCopy, CanDeriveDebug, CanDeriveDefault, CanDeriveHash};
+use ir::derive::{CanDeriveCopy, CanDeriveDebug, CanDeriveDefault, CanDeriveHash, CanDerivePartialEq};
 use ir::dot;
 use ir::enum_ty::{Enum, EnumVariant, EnumVariantValue};
 use ir::function::{Abi, Function, FunctionSig};
@@ -1495,6 +1495,10 @@ impl CodeGenerator for CompInfo {
             derives.push("Hash");
         }
 
+        if item.can_derive_partialeq(ctx) {
+            derives.push("PartialEq");
+        }
+
         if !derives.is_empty() {
             attributes.push(attributes::derives(&derives))
         }
@@ -3569,13 +3573,23 @@ mod utils {
         )
             .unwrap();
 
+        let union_field_partialeq_impl = quote_item!(&ctx.ext_cx(),
+           impl<T> ::$prefix::cmp::PartialEq for __BindgenUnionField<T> {
+               fn eq(&self, _other: &__BindgenUnionField<T>) -> bool {
+                   true
+               }
+           }
+        )
+            .unwrap();
+
         let items = vec![union_field_decl,
                          union_field_impl,
                          union_field_default_impl,
                          union_field_clone_impl,
                          union_field_copy_impl,
                          union_field_debug_impl,
-                         union_field_hash_impl];
+                         union_field_hash_impl,
+                         union_field_partialeq_impl];
 
         let old_items = mem::replace(result, items);
         result.extend(old_items.into_iter());