Run rustfmt --file-lines ... for changes from previous commits.

src/librustc/ty/query/on_disk_cache.rs

@@ -505,10 +505,9 @@ impl<'a, 'tcx> DecoderWithPosition for CacheDecoder<'a, 'tcx> {
 
 // Decode something that was encoded with encode_tagged() and verify that the
 // tag matches and the correct amount of bytes was read.
-fn decode_tagged<D, T, V>(decoder: &mut D,
+fn decode_tagged<D, T, V>(decoder: &mut D, expected_tag: T) -> Result<V, D::Error>
-                                    expected_tag: T)
+where
-                                    -> Result<V, D::Error>
+    T: Decodable + Eq + ::std::fmt::Debug,
-    where T: Decodable + Eq + ::std::fmt::Debug,
     V: Decodable,
     D: DecoderWithPosition,
 {

src/librustc_borrowck/borrowck/gather_loans/gather_moves.rs

@@ -20,7 +20,7 @@ struct GatherMoveInfo<'c, 'tcx> {
     id: hir::ItemLocalId,
     kind: MoveKind,
     cmt: &'c mc::cmt_<'tcx>,
-    span_path_opt: Option<MovePlace<'tcx>>
+    span_path_opt: Option<MovePlace<'tcx>>,
 }
 
 /// Represents the kind of pattern
@@ -91,11 +91,13 @@ pub fn gather_move_from_expr<'a, 'tcx>(bccx: &BorrowckCtxt<'a, 'tcx>,
     gather_move(bccx, move_data, move_error_collector, move_info);
 }
 
-pub fn gather_move_from_pat<'a, 'c, 'tcx>(bccx: &BorrowckCtxt<'a, 'tcx>,
+pub fn gather_move_from_pat<'a, 'c, 'tcx>(
+    bccx: &BorrowckCtxt<'a, 'tcx>,
     move_data: &MoveData<'tcx>,
     move_error_collector: &mut MoveErrorCollector<'tcx>,
     move_pat: &hir::Pat,
-                                              cmt: &'c mc::cmt_<'tcx>) {
+    cmt: &'c mc::cmt_<'tcx>,
+) {
     let source = get_pattern_source(bccx.tcx,move_pat);
     let pat_span_path_opt = match move_pat.node {
         PatKind::Binding(_, _, ident, _) => {
@@ -121,10 +123,12 @@ pub fn gather_move_from_pat<'a, 'c, 'tcx>(bccx: &BorrowckCtxt<'a, 'tcx>,
     gather_move(bccx, move_data, move_error_collector, move_info);
 }
 
-fn gather_move<'a, 'c, 'tcx>(bccx: &BorrowckCtxt<'a, 'tcx>,
+fn gather_move<'a, 'c, 'tcx>(
+    bccx: &BorrowckCtxt<'a, 'tcx>,
     move_data: &MoveData<'tcx>,
     move_error_collector: &mut MoveErrorCollector<'tcx>,
-                         move_info: GatherMoveInfo<'c, 'tcx>) {
+    move_info: GatherMoveInfo<'c, 'tcx>,
+) {
     debug!("gather_move(move_id={:?}, cmt={:?})",
            move_info.id, move_info.cmt);
 

src/librustc_codegen_ssa/base.rs

@@ -94,7 +94,7 @@ pub fn compare_simd_types<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     rhs: Bx::Value,
     t: Ty<'tcx>,
     ret_ty: Bx::Type,
-    op: hir::BinOpKind
+    op: hir::BinOpKind,
 ) -> Bx::Value {
     let signed = match t.sty {
         ty::Float(_) => {
@@ -156,7 +156,7 @@ pub fn unsize_thin_ptr<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     bx: &mut Bx,
     src: Bx::Value,
     src_ty: Ty<'tcx>,
-    dst_ty: Ty<'tcx>
+    dst_ty: Ty<'tcx>,
 ) -> (Bx::Value, Bx::Value) {
     debug!("unsize_thin_ptr: {:?} => {:?}", src_ty, dst_ty);
     match (&src_ty.sty, &dst_ty.sty) {
@@ -210,7 +210,7 @@ pub fn unsize_thin_ptr<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
 pub fn coerce_unsized_into<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     bx: &mut Bx,
     src: PlaceRef<'tcx, Bx::Value>,
-    dst: PlaceRef<'tcx, Bx::Value>
+    dst: PlaceRef<'tcx, Bx::Value>,
 ) {
     let src_ty = src.layout.ty;
     let dst_ty = dst.layout.ty;
@@ -270,7 +270,7 @@ pub fn cast_shift_expr_rhs<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     bx: &mut Bx,
     op: hir::BinOpKind,
     lhs: Bx::Value,
-    rhs: Bx::Value
+    rhs: Bx::Value,
 ) -> Bx::Value {
     cast_shift_rhs(bx, op, lhs, rhs)
 }
@@ -318,7 +318,7 @@ pub fn wants_msvc_seh(sess: &Session) -> bool {
 
 pub fn from_immediate<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     bx: &mut Bx,
-    val: Bx::Value
+    val: Bx::Value,
 ) -> Bx::Value {
     if bx.cx().val_ty(val) == bx.cx().type_i1() {
         bx.zext(val, bx.cx().type_i8())
@@ -387,9 +387,7 @@ pub fn codegen_instance<'a, 'tcx: 'a, Bx: BuilderMethods<'a, 'tcx>>(
 
 /// Creates the `main` function which will initialize the rust runtime and call
 /// users main function.
-pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
+pub fn maybe_create_entry_wrapper<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(cx: &'a Bx::CodegenCx) {
-    cx: &'a Bx::CodegenCx
-) {
     let (main_def_id, span) = match cx.tcx().entry_fn(LOCAL_CRATE) {
         Some((def_id, _)) => { (def_id, cx.tcx().def_span(def_id)) },
         None => return,

src/librustc_codegen_ssa/common.rs

@@ -140,7 +140,7 @@ pub fn langcall(tcx: TyCtxt<'_>, span: Option<Span>, msg: &str, li: LangItem) ->
 pub fn build_unchecked_lshift<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     bx: &mut Bx,
     lhs: Bx::Value,
-    rhs: Bx::Value
+    rhs: Bx::Value,
 ) -> Bx::Value {
     let rhs = base::cast_shift_expr_rhs(bx, hir::BinOpKind::Shl, lhs, rhs);
     // #1877, #10183: Ensure that input is always valid
@@ -152,7 +152,7 @@ pub fn build_unchecked_rshift<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     bx: &mut Bx,
     lhs_t: Ty<'tcx>,
     lhs: Bx::Value,
-    rhs: Bx::Value
+    rhs: Bx::Value,
 ) -> Bx::Value {
     let rhs = base::cast_shift_expr_rhs(bx, hir::BinOpKind::Shr, lhs, rhs);
     // #1877, #10183: Ensure that input is always valid
@@ -167,7 +167,7 @@ pub fn build_unchecked_rshift<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
 
 fn shift_mask_rhs<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     bx: &mut Bx,
-    rhs: Bx::Value
+    rhs: Bx::Value,
 ) -> Bx::Value {
     let rhs_llty = bx.val_ty(rhs);
     let shift_val = shift_mask_val(bx, rhs_llty, rhs_llty, false);
@@ -178,7 +178,7 @@ pub fn shift_mask_val<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     bx: &mut Bx,
     llty: Bx::Type,
     mask_llty: Bx::Type,
-    invert: bool
+    invert: bool,
 ) -> Bx::Value {
     let kind = bx.type_kind(llty);
     match kind {

src/librustc_codegen_ssa/glue.rs

@@ -10,7 +10,7 @@ use crate::traits::*;
 pub fn size_and_align_of_dst<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     bx: &mut Bx,
     t: Ty<'tcx>,
-    info: Option<Bx::Value>
+    info: Option<Bx::Value>,
 ) -> (Bx::Value, Bx::Value) {
     let layout = bx.layout_of(t);
     debug!("size_and_align_of_dst(ty={}, info={:?}): layout: {:?}",

src/librustc_codegen_ssa/mir/analyze.rs

@@ -13,7 +13,7 @@ use super::FunctionCx;
 use crate::traits::*;
 
 pub fn non_ssa_locals<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
-    fx: &FunctionCx<'a, 'tcx, Bx>
+    fx: &FunctionCx<'a, 'tcx, Bx>,
 ) -> BitSet<mir::Local> {
     let mir = fx.mir;
     let mut analyzer = LocalAnalyzer::new(fx);
@@ -49,7 +49,7 @@ struct LocalAnalyzer<'mir, 'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> {
     non_ssa_locals: BitSet<mir::Local>,
     // The location of the first visited direct assignment to each
     // local, or an invalid location (out of bounds `block` index).
-    first_assignment: IndexVec<mir::Local, Location>
+    first_assignment: IndexVec<mir::Local, Location>,
 }
 
 impl<Bx: BuilderMethods<'a, 'tcx>> LocalAnalyzer<'mir, 'a, 'tcx, Bx> {
@@ -95,7 +95,8 @@ impl<Bx: BuilderMethods<'a, 'tcx>> LocalAnalyzer<'mir, 'a, 'tcx, Bx> {
 }
 
 impl<'mir, 'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> Visitor<'tcx>
-    for LocalAnalyzer<'mir, 'a, 'tcx, Bx> {
+    for LocalAnalyzer<'mir, 'a, 'tcx, Bx>
+{
     fn visit_assign(&mut self,
                     place: &mir::Place<'tcx>,
                     rvalue: &mir::Rvalue<'tcx>,

src/librustc_codegen_ssa/mir/mod.rs

@@ -43,7 +43,7 @@ pub struct FunctionCx<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> {
     /// don't really care about it very much. Anyway, this value
     /// contains an alloca into which the personality is stored and
     /// then later loaded when generating the DIVERGE_BLOCK.
-    personality_slot: Option<PlaceRef<'tcx, Bx::Value,>>,
+    personality_slot: Option<PlaceRef<'tcx, Bx::Value>>,
 
     /// A `Block` for each MIR `BasicBlock`
     blocks: IndexVec<mir::BasicBlock, Bx::BasicBlock>,
@@ -355,10 +355,11 @@ fn create_funclets<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
     mir: &'a Body<'tcx>,
     bx: &mut Bx,
     cleanup_kinds: &IndexVec<mir::BasicBlock, CleanupKind>,
-    block_bxs: &IndexVec<mir::BasicBlock, Bx::BasicBlock>)
+    block_bxs: &IndexVec<mir::BasicBlock, Bx::BasicBlock>,
-    -> (IndexVec<mir::BasicBlock, Option<Bx::BasicBlock>>,
+) -> (
-        IndexVec<mir::BasicBlock, Option<Bx::Funclet>>)
+    IndexVec<mir::BasicBlock, Option<Bx::BasicBlock>>,
-{
+    IndexVec<mir::BasicBlock, Option<Bx::Funclet>>,
+) {
     block_bxs.iter_enumerated().zip(cleanup_kinds).map(|((bb, &llbb), cleanup_kind)| {
         match *cleanup_kind {
             CleanupKind::Funclet if base::wants_msvc_seh(bx.sess()) => {}

src/librustc_mir/dataflow/mod.rs

@@ -43,7 +43,7 @@ pub(crate) mod indexes {
 
 pub(crate) struct DataflowBuilder<'a, 'tcx, BD>
 where
-    BD: BitDenotation<'tcx>
+    BD: BitDenotation<'tcx>,
 {
     def_id: DefId,
     flow_state: DataflowAnalysis<'a, 'tcx, BD>,
@@ -88,7 +88,7 @@ pub(crate) trait Dataflow<'tcx, BD: BitDenotation<'tcx>> {
 
 impl<'a, 'tcx, BD> Dataflow<'tcx, BD> for DataflowBuilder<'a, 'tcx, BD>
 where
-    BD: BitDenotation<'tcx>
+    BD: BitDenotation<'tcx>,
 {
     fn dataflow<P>(&mut self, p: P) where P: Fn(&BD, BD::Idx) -> DebugFormatted {
         self.flow_state.build_sets();
@@ -179,12 +179,16 @@ where
     }
 }
 
-struct PropagationContext<'b, 'a, 'tcx, O> where O: 'b + BitDenotation<'tcx>
+struct PropagationContext<'b, 'a, 'tcx, O>
+where
+    O: 'b + BitDenotation<'tcx>,
 {
     builder: &'b mut DataflowAnalysis<'a, 'tcx, O>,
 }
 
-impl<'a, 'tcx, BD> DataflowAnalysis<'a, 'tcx, BD> where BD: BitDenotation<'tcx>
+impl<'a, 'tcx, BD> DataflowAnalysis<'a, 'tcx, BD>
+where
+    BD: BitDenotation<'tcx>,
 {
     fn propagate(&mut self) {
         let mut temp = BitSet::new_empty(self.flow_state.sets.bits_per_block);
@@ -234,7 +238,9 @@ impl<'a, 'tcx, BD> DataflowAnalysis<'a, 'tcx, BD> where BD: BitDenotation<'tcx>
     }
 }
 
-impl<'b, 'a, 'tcx, BD> PropagationContext<'b, 'a, 'tcx, BD> where BD: BitDenotation<'tcx>
+impl<'b, 'a, 'tcx, BD> PropagationContext<'b, 'a, 'tcx, BD>
+where
+    BD: BitDenotation<'tcx>,
 {
     fn walk_cfg(&mut self, in_out: &mut BitSet<BD::Idx>) {
         let mut dirty_queue: WorkQueue<mir::BasicBlock> =
@@ -265,7 +271,9 @@ fn dataflow_path(context: &str, path: &str) -> PathBuf {
     path
 }
 
-impl<'a, 'tcx, BD> DataflowBuilder<'a, 'tcx, BD> where BD: BitDenotation<'tcx>
+impl<'a, 'tcx, BD> DataflowBuilder<'a, 'tcx, BD>
+where
+    BD: BitDenotation<'tcx>,
 {
     fn pre_dataflow_instrumentation<P>(&self, p: P) -> io::Result<()>
         where P: Fn(&BD, BD::Idx) -> DebugFormatted
@@ -387,14 +395,18 @@ pub fn state_for_location<'tcx, T: BitDenotation<'tcx>>(loc: Location,
     gen_set.to_dense()
 }
 
-pub struct DataflowAnalysis<'a, 'tcx, O> where O: BitDenotation<'tcx>
+pub struct DataflowAnalysis<'a, 'tcx, O>
+where
+    O: BitDenotation<'tcx>,
 {
     flow_state: DataflowState<'tcx, O>,
     dead_unwinds: &'a BitSet<mir::BasicBlock>,
     body: &'a Body<'tcx>,
 }
 
-impl<'a, 'tcx, O> DataflowAnalysis<'a, 'tcx, O> where O: BitDenotation<'tcx>
+impl<'a, 'tcx, O> DataflowAnalysis<'a, 'tcx, O>
+where
+    O: BitDenotation<'tcx>,
 {
     pub fn results(self) -> DataflowResults<'tcx, O> {
         DataflowResults(self.flow_state)
@@ -734,7 +746,10 @@ impl<'a, 'tcx, D> DataflowAnalysis<'a, 'tcx, D> where D: BitDenotation<'tcx>
     }
 }
 
-impl<'a, 'tcx, D> DataflowAnalysis<'a, 'tcx, D> where D: BitDenotation<'tcx> {
+impl<'a, 'tcx, D> DataflowAnalysis<'a, 'tcx, D>
+where
+    D: BitDenotation<'tcx>,
+{
     /// Propagates the bits of `in_out` into all the successors of `bb`,
     /// using bitwise operator denoted by `self.operator`.
     ///

src/librustc_mir/hair/cx/to_ref.rs

@@ -33,7 +33,8 @@ impl<'tcx> ToRef for Expr<'tcx> {
 }
 
 impl<'tcx, T, U> ToRef for &'tcx Option<T>
-    where &'tcx T: ToRef<Output = U>
+where
+    &'tcx T: ToRef<Output = U>,
 {
     type Output = Option<U>;
 
@@ -43,7 +44,8 @@ impl<'tcx, T, U> ToRef for &'tcx Option<T>
 }
 
 impl<'tcx, T, U> ToRef for &'tcx Vec<T>
-    where &'tcx T: ToRef<Output = U>
+where
+    &'tcx T: ToRef<Output = U>,
 {
     type Output = Vec<U>;
 
@@ -53,7 +55,8 @@ impl<'tcx, T, U> ToRef for &'tcx Vec<T>
 }
 
 impl<'tcx, T, U> ToRef for &'tcx P<[T]>
-    where &'tcx T: ToRef<Output = U>
+where
+    &'tcx T: ToRef<Output = U>,
 {
     type Output = Vec<U>;
 

src/librustc_mir/hair/pattern/_match.rs

@@ -632,10 +632,10 @@ impl<'tcx> Witness<'tcx> {
 ///
 /// We make sure to omit constructors that are statically impossible. E.g., for
 /// `Option<!>`, we do not include `Some(_)` in the returned list of constructors.
-fn all_constructors<'a, 'tcx>(cx: &mut MatchCheckCtxt<'a, 'tcx>,
+fn all_constructors<'a, 'tcx>(
-                                  pcx: PatternContext<'tcx>)
+    cx: &mut MatchCheckCtxt<'a, 'tcx>,
-                                  -> Vec<Constructor<'tcx>>
+    pcx: PatternContext<'tcx>,
-{
+) -> Vec<Constructor<'tcx>> {
     debug!("all_constructors({:?})", pcx.ty);
     let ctors = match pcx.ty.sty {
         ty::Bool => {
@@ -706,10 +706,9 @@ fn all_constructors<'a, 'tcx>(cx: &mut MatchCheckCtxt<'a, 'tcx>,
     ctors
 }
 
-fn max_slice_length<'p, 'a, 'tcx, I>(
+fn max_slice_length<'p, 'a, 'tcx, I>(cx: &mut MatchCheckCtxt<'a, 'tcx>, patterns: I) -> u64
-    cx: &mut MatchCheckCtxt<'a, 'tcx>,
+where
-    patterns: I) -> u64
+    I: Iterator<Item = &'p Pattern<'tcx>>,
-    where I: Iterator<Item=&'p Pattern<'tcx>>,
     'tcx: 'p,
 {
     // The exhaustiveness-checking paper does not include any details on
@@ -1056,11 +1055,12 @@ fn compute_missing_ctors<'tcx>(
 /// relation to preceding patterns, it is not reachable) and exhaustiveness
 /// checking (if a wildcard pattern is useful in relation to a matrix, the
 /// matrix isn't exhaustive).
-pub fn is_useful<'p, 'a, 'tcx>(cx: &mut MatchCheckCtxt<'a, 'tcx>,
+pub fn is_useful<'p, 'a, 'tcx>(
+    cx: &mut MatchCheckCtxt<'a, 'tcx>,
     matrix: &Matrix<'p, 'tcx>,
     v: &[&Pattern<'tcx>],
-                                       witness: WitnessPreference)
+    witness: WitnessPreference,
-                                       -> Usefulness<'tcx> {
+) -> Usefulness<'tcx> {
     let &Matrix(ref rows) = matrix;
     debug!("is_useful({:#?}, {:#?})", matrix, v);
 
@@ -1372,10 +1372,11 @@ fn constructor_arity(cx: &MatchCheckCtxt<'a, 'tcx>, ctor: &Constructor<'tcx>, ty
 /// expanded to.
 ///
 /// For instance, a tuple pattern (43u32, 'a') has sub pattern types [u32, char].
-fn constructor_sub_pattern_tys<'a, 'tcx>(cx: &MatchCheckCtxt<'a, 'tcx>,
+fn constructor_sub_pattern_tys<'a, 'tcx>(
+    cx: &MatchCheckCtxt<'a, 'tcx>,
     ctor: &Constructor<'tcx>,
-                                             ty: Ty<'tcx>) -> Vec<Ty<'tcx>>
+    ty: Ty<'tcx>,
-{
+) -> Vec<Ty<'tcx>> {
     debug!("constructor_sub_pattern_tys({:#?}, {:?})", ctor, ty);
     match ty.sty {
         ty::Tuple(ref fs) => fs.into_iter().map(|t| t.expect_ty()).collect(),

src/librustc_mir/transform/generator.rs

@@ -625,7 +625,8 @@ struct StorageConflictVisitor<'body, 'tcx, 's> {
 }
 
 impl<'body, 'tcx, 's> DataflowResultsConsumer<'body, 'tcx>
-for StorageConflictVisitor<'body, 'tcx, 's> {
+    for StorageConflictVisitor<'body, 'tcx, 's>
+{
     type FlowState = FlowAtLocation<'tcx, MaybeStorageLive<'body, 'tcx>>;
 
     fn body(&self) -> &'body Body<'tcx> {

src/librustc_mir/util/elaborate_drops.rs

@@ -91,7 +91,8 @@ pub trait DropElaborator<'a, 'tcx>: fmt::Debug {
 
 #[derive(Debug)]
 struct DropCtxt<'l, 'b, 'tcx, D>
-    where D : DropElaborator<'b, 'tcx> + 'l
+where
+    D: DropElaborator<'b, 'tcx> + 'l,
 {
     elaborator: &'l mut D,
 
@@ -110,8 +111,9 @@ pub fn elaborate_drop<'b, 'tcx, D>(
     path: D::Path,
     succ: BasicBlock,
     unwind: Unwind,
-    bb: BasicBlock)
+    bb: BasicBlock,
-    where D: DropElaborator<'b, 'tcx>,
+) where
+    D: DropElaborator<'b, 'tcx>,
     'tcx: 'b,
 {
     DropCtxt {

src/libsyntax_ext/deriving/generic/mod.rs

@@ -339,11 +339,12 @@ pub fn combine_substructure<'a>(f: CombineSubstructureFunc<'a>)
 /// This method helps to extract all the type parameters referenced from a
 /// type. For a type parameter `<T>`, it looks for either a `TyPath` that
 /// is not global and starts with `T`, or a `TyQPath`.
-fn find_type_parameters(ty: &ast::Ty,
+fn find_type_parameters(
+    ty: &ast::Ty,
     ty_param_names: &[ast::Name],
     span: Span,
-                        cx: &ExtCtxt<'_>)
+    cx: &ExtCtxt<'_>,
-                        -> Vec<P<ast::Ty>> {
+) -> Vec<P<ast::Ty>> {
     use syntax::visit;
 
     struct Visitor<'a, 'b> {