Rollup merge of rust-lang#37052 - srinivasreddy:hair_cx, r=pnkfelix

Run rustfmt on librustc_mir/hair/cx

Author: frewsxcv

src/librustc_mir/hair/cx/block.rs

@@ -26,47 +26,52 @@ impl<'tcx> Mirror<'tcx> for &'tcx hir::Block {
             extent: cx.tcx.region_maps.node_extent(self.id),
             span: self.span,
             stmts: stmts,
-            expr: self.expr.to_ref()
+            expr: self.expr.to_ref(),
         }
     }
 }
 
 fn mirror_stmts<'a, 'gcx, 'tcx>(cx: &mut Cx<'a, 'gcx, 'tcx>,
                                 block_id: ast::NodeId,
                                 stmts: &'tcx [hir::Stmt])
-                                -> Vec<StmtRef<'tcx>>
-{
+                                -> Vec<StmtRef<'tcx>> {
     let mut result = vec![];
     for (index, stmt) in stmts.iter().enumerate() {
         match stmt.node {
-            hir::StmtExpr(ref expr, id) | hir::StmtSemi(ref expr, id) =>
+            hir::StmtExpr(ref expr, id) |
+            hir::StmtSemi(ref expr, id) => {
                 result.push(StmtRef::Mirror(Box::new(Stmt {
                     span: stmt.span,
                     kind: StmtKind::Expr {
                         scope: cx.tcx.region_maps.node_extent(id),
-                        expr: expr.to_ref()
+                        expr: expr.to_ref(),
+                    },
+                })))
+            }
+            hir::StmtDecl(ref decl, id) => {
+                match decl.node {
+                    hir::DeclItem(..) => {
+                        // ignore for purposes of the MIR
                     }
-                }))),
-            hir::StmtDecl(ref decl, id) => match decl.node {
-                hir::DeclItem(..) => { /* ignore for purposes of the MIR */ }
-                hir::DeclLocal(ref local) => {
-                    let remainder_extent = CodeExtentData::Remainder(BlockRemainder {
-                        block: block_id,
-                        first_statement_index: index as u32,
-                    });
-                    let remainder_extent =
-                        cx.tcx.region_maps.lookup_code_extent(remainder_extent);
+                    hir::DeclLocal(ref local) => {
+                        let remainder_extent = CodeExtentData::Remainder(BlockRemainder {
+                            block: block_id,
+                            first_statement_index: index as u32,
+                        });
+                        let remainder_extent =
+                            cx.tcx.region_maps.lookup_code_extent(remainder_extent);
 
-                    let pattern = Pattern::from_hir(cx.tcx, &local.pat);
-                    result.push(StmtRef::Mirror(Box::new(Stmt {
-                        span: stmt.span,
-                        kind: StmtKind::Let {
-                            remainder_scope: remainder_extent,
-                            init_scope: cx.tcx.region_maps.node_extent(id),
-                            pattern: pattern,
-                            initializer: local.init.to_ref(),
-                        },
-                    })));
+                        let pattern = Pattern::from_hir(cx.tcx, &local.pat);
+                        result.push(StmtRef::Mirror(Box::new(Stmt {
+                            span: stmt.span,
+                            kind: StmtKind::Let {
+                                remainder_scope: remainder_extent,
+                                init_scope: cx.tcx.region_maps.node_extent(id),
+                                pattern: pattern,
+                                initializer: local.init.to_ref(),
+                            },
+                        })));
+                    }
                 }
             }
         }