Remove unnecessary accessor function VariantDefData::kind

src/librustc/mir/repr.rs

@@ -1063,7 +1063,7 @@ impl<'tcx> Debug for Rvalue<'tcx> {
                             Some(tcx.lookup_item_type(variant_def.did).generics)
                         })?;
 
-                        match variant_def.kind() {
+                        match variant_def.kind {
                             ty::VariantKind::Unit => Ok(()),
                             ty::VariantKind::Tuple => fmt_tuple(fmt, lvs),
                             ty::VariantKind::Struct => {

src/librustc/ty/mod.rs

@@ -1925,14 +1925,6 @@ impl<'tcx, 'container> VariantDefData<'tcx, 'container> {
         self.fields.iter()
     }
 
-    pub fn kind(&self) -> VariantKind {
-        self.kind
-    }
-
-    pub fn is_tuple_struct(&self) -> bool {
-        self.kind() == VariantKind::Tuple
-    }
-
     #[inline]
     pub fn find_field_named(&self,
                             name: ast::Name)

src/librustc_const_eval/check_match.rs

@@ -246,9 +246,9 @@ fn check_for_bindings_named_the_same_as_variants(cx: &MatchCheckCtxt, pat: &Pat)
             let pat_ty = cx.tcx.pat_ty(p);
             if let ty::TyEnum(edef, _) = pat_ty.sty {
                 if let Def::Local(..) = cx.tcx.expect_def(p.id) {
-                    if edef.variants.iter().any(|variant|
-                        variant.name == name.node && variant.kind() == VariantKind::Unit
-                    ) {
+                    if edef.variants.iter().any(|variant| {
+                        variant.name == name.node && variant.kind == VariantKind::Unit
+                    }) {
                         let ty_path = cx.tcx.item_path_str(edef.did);
                         let mut err = struct_span_warn!(cx.tcx.sess, p.span, E0170,
                             "pattern binding `{}` is named the same as one \
@@ -563,7 +563,7 @@ fn construct_witness<'a,'tcx>(cx: &MatchCheckCtxt<'a,'tcx>, ctor: &Constructor,
 
         ty::TyEnum(adt, _) | ty::TyStruct(adt, _)  => {
             let v = ctor.variant_for_adt(adt);
-            match v.kind() {
+            match v.kind {
                 VariantKind::Struct => {
                     let field_pats: hir::HirVec<_> = v.fields.iter()
                         .zip(pats)

src/librustc_metadata/decoder.rs

@@ -498,7 +498,7 @@ pub fn get_adt_def<'a, 'tcx>(intr: &IdentInterner,
     // this needs to be done *after* the variant is interned,
     // to support recursive structures
     for variant in &adt.variants {
-        if variant.kind() == ty::VariantKind::Tuple &&
+        if variant.kind == ty::VariantKind::Tuple &&
             adt.adt_kind() == ty::AdtKind::Enum {
             // tuple-like enum variant fields aren't real items - get the types
             // from the ctor.

src/librustc_metadata/encoder.rs

@@ -217,7 +217,7 @@ fn encode_parent_item(rbml_w: &mut Encoder, id: DefId) {
 fn encode_struct_fields(rbml_w: &mut Encoder,
                         variant: ty::VariantDef) {
     for f in &variant.fields {
-        if variant.is_tuple_struct() {
+        if variant.kind == ty::VariantKind::Tuple {
             rbml_w.start_tag(tag_item_unnamed_field);
         } else {
             rbml_w.start_tag(tag_item_field);
@@ -250,7 +250,7 @@ fn encode_enum_variant_info<'a, 'tcx>(ecx: &EncodeContext<'a, 'tcx>,
         let _task = index.record(vid, rbml_w);
         rbml_w.start_tag(tag_items_data_item);
         encode_def_id_and_key(ecx, rbml_w, vid);
-        encode_family(rbml_w, match variant.kind() {
+        encode_family(rbml_w, match variant.kind {
             ty::VariantKind::Struct => 'V',
             ty::VariantKind::Tuple => 'v',
             ty::VariantKind::Unit => 'w',

src/librustc_trans/consts.rs

@@ -901,7 +901,7 @@ fn const_expr_unadjusted<'a, 'tcx>(cx: &CrateContext<'a, 'tcx>,
                 }
                 Def::Variant(enum_did, variant_did) => {
                     let vinfo = cx.tcx().lookup_adt_def(enum_did).variant_with_id(variant_did);
-                    match vinfo.kind() {
+                    match vinfo.kind {
                         ty::VariantKind::Unit => {
                             let repr = adt::represent_type(cx, ety);
                             adt::trans_const(cx, &repr, Disr::from(vinfo.disr_val), &[])

src/librustc_trans/debuginfo/metadata.rs

@@ -1109,7 +1109,7 @@ struct StructMemberDescriptionFactory<'tcx> {
 impl<'tcx> StructMemberDescriptionFactory<'tcx> {
     fn create_member_descriptions<'a>(&self, cx: &CrateContext<'a, 'tcx>)
                                       -> Vec<MemberDescription> {
-        if let ty::VariantKind::Unit = self.variant.kind() {
+        if self.variant.kind == ty::VariantKind::Unit {
             return Vec::new();
         }
 
@@ -1126,7 +1126,7 @@ impl<'tcx> StructMemberDescriptionFactory<'tcx> {
         };
 
         self.variant.fields.iter().enumerate().map(|(i, f)| {
-            let name = if let ty::VariantKind::Tuple = self.variant.kind() {
+            let name = if self.variant.kind == ty::VariantKind::Tuple {
                 format!("__{}", i)
             } else {
                 f.name.to_string()
@@ -1356,7 +1356,7 @@ impl<'tcx> EnumMemberDescriptionFactory<'tcx> {
                 // For the metadata of the wrapper struct, we need to create a
                 // MemberDescription of the struct's single field.
                 let sole_struct_member_description = MemberDescription {
-                    name: match non_null_variant.kind() {
+                    name: match non_null_variant.kind {
                         ty::VariantKind::Tuple => "__0".to_string(),
                         ty::VariantKind::Struct => {
                             non_null_variant.fields[0].name.to_string()
@@ -1524,7 +1524,7 @@ fn describe_enum_variant<'a, 'tcx>(cx: &CrateContext<'a, 'tcx>,
                                            containing_scope);
 
     // Get the argument names from the enum variant info
-    let mut arg_names: Vec<_> = match variant.kind() {
+    let mut arg_names: Vec<_> = match variant.kind {
         ty::VariantKind::Unit => vec![],
         ty::VariantKind::Tuple => {
             variant.fields

src/librustc_typeck/check/mod.rs

@@ -1671,14 +1671,12 @@ impl<'a, 'gcx, 'tcx> FnCtxt<'a, 'gcx, 'tcx> {
             _ => return None
         };
 
-        let var_kind = variant.kind();
-        if var_kind == ty::VariantKind::Struct {
+        if variant.kind == ty::VariantKind::Struct ||
+           variant.kind == ty::VariantKind::Unit {
             Some((adt, variant))
-        } else if var_kind == ty::VariantKind::Unit {
-             Some((adt, variant))
-         } else {
-             None
-         }
+        } else {
+            None
+        }
     }
 
     pub fn write_nil(&self, node_id: ast::NodeId) {
@@ -2998,7 +2996,7 @@ impl<'a, 'gcx, 'tcx> FnCtxt<'a, 'gcx, 'tcx> {
         while let Some((base_t, autoderefs)) = autoderef.next() {
             let field = match base_t.sty {
                 ty::TyStruct(base_def, substs) => {
-                    tuple_like = base_def.struct_variant().is_tuple_struct();
+                    tuple_like = base_def.struct_variant().kind == ty::VariantKind::Tuple;
                     if !tuple_like { continue }
 
                     debug!("tuple struct named {:?}",  base_t);

src/librustc_typeck/collect.rs

@@ -949,7 +949,7 @@ fn convert_variant_ctor<'a, 'tcx>(ccx: &CrateCtxt<'a, 'tcx>,
                                   scheme: ty::TypeScheme<'tcx>,
                                   predicates: ty::GenericPredicates<'tcx>) {
     let tcx = ccx.tcx;
-    let ctor_ty = match variant.kind() {
+    let ctor_ty = match variant.kind {
         VariantKind::Unit | VariantKind::Struct => scheme.ty,
         VariantKind::Tuple => {
             let inputs: Vec<_> =

src/librustdoc/clean/mod.rs

@@ -1904,7 +1904,7 @@ impl Clean<Item> for doctree::Variant {
 
 impl<'tcx> Clean<Item> for ty::VariantDefData<'tcx, 'static> {
     fn clean(&self, cx: &DocContext) -> Item {
-        let kind = match self.kind() {
+        let kind = match self.kind {
             ty::VariantKind::Unit => CLikeVariant,
             ty::VariantKind::Tuple => {
                 TupleVariant(