Rename ExprKind::Vec to Array in HIR and HAIR.

This is a clearer name since they represent [a, b, c] array literals.

src/librustc/hir/lowering.rs

@@ -1382,7 +1382,7 @@ impl<'a> LoweringContext<'a> {
                     return self.expr_block(P(block), e.attrs.clone());
                 }
 
-                ExprKind::Vec(ref exprs) => {
+                ExprKind::Array(ref exprs) => {
                     hir::ExprArray(exprs.iter().map(|x| self.lower_expr(x)).collect())
                 }
                 ExprKind::Repeat(ref expr, ref count) => {

src/librustc_mir/build/expr/as_lvalue.rs

@@ -87,7 +87,7 @@ impl<'a, 'gcx, 'tcx> Builder<'a, 'gcx, 'tcx> {
                 block.and(Lvalue::Static(id))
             }
 
-            ExprKind::Vec { .. } |
+            ExprKind::Array { .. } |
             ExprKind::Tuple { .. } |
             ExprKind::Adt { .. } |
             ExprKind::Closure { .. } |

src/librustc_mir/build/expr/as_rvalue.rs

@@ -132,7 +132,7 @@ impl<'a, 'gcx, 'tcx> Builder<'a, 'gcx, 'tcx> {
                 let source = unpack!(block = this.as_operand(block, source));
                 block.and(Rvalue::Cast(CastKind::Unsize, source, expr.ty))
             }
-            ExprKind::Vec { fields } => {
+            ExprKind::Array { fields } => {
                 // (*) We would (maybe) be closer to trans if we
                 // handled this and other aggregate cases via
                 // `into()`, not `as_rvalue` -- in that case, instead

src/librustc_mir/build/expr/category.rs

@@ -60,7 +60,7 @@ impl Category {
             ExprKind::Call { .. } =>
                 Some(Category::Rvalue(RvalueFunc::Into)),
 
-            ExprKind::Vec { .. } |
+            ExprKind::Array { .. } |
             ExprKind::Tuple { .. } |
             ExprKind::Adt { .. } |
             ExprKind::Closure { .. } |

src/librustc_mir/build/expr/into.rs

@@ -256,7 +256,7 @@ impl<'a, 'gcx, 'tcx> Builder<'a, 'gcx, 'tcx> {
             ExprKind::VarRef { .. } |
             ExprKind::SelfRef |
             ExprKind::StaticRef { .. } |
-            ExprKind::Vec { .. } |
+            ExprKind::Array { .. } |
             ExprKind::Tuple { .. } |
             ExprKind::Adt { .. } |
             ExprKind::Closure { .. } |

src/librustc_mir/hair/cx/expr.rs

@@ -664,7 +664,7 @@ fn make_mirror_unadjusted<'a, 'gcx, 'tcx>(cx: &mut Cx<'a, 'gcx, 'tcx>,
                 value_extents: cx.tcx.region_maps.node_extent(value.id),
             }
         }
-        hir::ExprArray(ref fields) => ExprKind::Vec { fields: fields.to_ref() },
+        hir::ExprArray(ref fields) => ExprKind::Array { fields: fields.to_ref() },
         hir::ExprTup(ref fields) => ExprKind::Tuple { fields: fields.to_ref() },
     };
 

src/librustc_mir/hair/mod.rs

@@ -214,7 +214,7 @@ pub enum ExprKind<'tcx> {
         value: ExprRef<'tcx>,
         count: TypedConstVal<'tcx>,
     },
-    Vec {
+    Array {
         fields: Vec<ExprRef<'tcx>>,
     },
     Tuple {

src/libsyntax/ast.rs

@@ -864,7 +864,7 @@ pub enum ExprKind {
     /// First expr is the place; second expr is the value.
     InPlace(P<Expr>, P<Expr>),
     /// An array (`[a, b, c, d]`)
-    Vec(Vec<P<Expr>>),
+    Array(Vec<P<Expr>>),
     /// A function call
     ///
     /// The first field resolves to the function itself,

src/libsyntax/ext/build.rs

@@ -745,7 +745,7 @@ impl<'a> AstBuilder for ExtCtxt<'a> {
     }
 
     fn expr_vec(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr> {
-        self.expr(sp, ast::ExprKind::Vec(exprs))
+        self.expr(sp, ast::ExprKind::Array(exprs))
     }
     fn expr_vec_ng(&self, sp: Span) -> P<ast::Expr> {
         self.expr_call_global(sp, self.std_path(&["vec", "Vec", "new"]),

src/libsyntax/fold.rs

@@ -1123,8 +1123,8 @@ pub fn noop_fold_expr<T: Folder>(Expr {id, node, span, attrs}: Expr, folder: &mu
             ExprKind::InPlace(p, e) => {
                 ExprKind::InPlace(folder.fold_expr(p), folder.fold_expr(e))
             }
-            ExprKind::Vec(exprs) => {
-                ExprKind::Vec(folder.fold_exprs(exprs))
+            ExprKind::Array(exprs) => {
+                ExprKind::Array(folder.fold_exprs(exprs))
             }
             ExprKind::Repeat(expr, count) => {
                 ExprKind::Repeat(folder.fold_expr(expr), folder.fold_expr(count))

src/libsyntax/parse/parser.rs

@@ -2140,7 +2140,7 @@ impl<'a> Parser<'a> {
                 if self.check(&token::CloseDelim(token::Bracket)) {
                     // Empty vector.
                     self.bump();
-                    ex = ExprKind::Vec(Vec::new());
+                    ex = ExprKind::Array(Vec::new());
                 } else {
                     // Nonempty vector.
                     let first_expr = self.parse_expr()?;
@@ -2160,11 +2160,11 @@ impl<'a> Parser<'a> {
                         )?;
                         let mut exprs = vec![first_expr];
                         exprs.extend(remaining_exprs);
-                        ex = ExprKind::Vec(exprs);
+                        ex = ExprKind::Array(exprs);
                     } else {
                         // Vector with one element.
                         self.expect(&token::CloseDelim(token::Bracket))?;
-                        ex = ExprKind::Vec(vec![first_expr]);
+                        ex = ExprKind::Array(vec![first_expr]);
                     }
                 }
                 hi = self.prev_span.hi;

src/libsyntax/print/pprust.rs

@@ -2018,7 +2018,7 @@ impl<'a> State<'a> {
             ast::ExprKind::InPlace(ref place, ref expr) => {
                 self.print_expr_in_place(place, expr)?;
             }
-            ast::ExprKind::Vec(ref exprs) => {
+            ast::ExprKind::Array(ref exprs) => {
                 self.print_expr_vec(&exprs[..], attrs)?;
             }
             ast::ExprKind::Repeat(ref element, ref count) => {

src/libsyntax/test.rs

@@ -628,7 +628,7 @@ fn mk_test_descs(cx: &TestCtxt) -> P<ast::Expr> {
         node: ast::ExprKind::AddrOf(ast::Mutability::Immutable,
             P(ast::Expr {
                 id: ast::DUMMY_NODE_ID,
-                node: ast::ExprKind::Vec(cx.testfns.iter().map(|test| {
+                node: ast::ExprKind::Array(cx.testfns.iter().map(|test| {
                     mk_test_desc_and_fn_rec(cx, test)
                 }).collect()),
                 span: DUMMY_SP,

src/libsyntax/visit.rs

@@ -650,7 +650,7 @@ pub fn walk_expr<'a, V: Visitor<'a>>(visitor: &mut V, expression: &'a Expr) {
             visitor.visit_expr(place);
             visitor.visit_expr(subexpression)
         }
-        ExprKind::Vec(ref subexpressions) => {
+        ExprKind::Array(ref subexpressions) => {
             walk_list!(visitor, visit_expr, subexpressions);
         }
         ExprKind::Repeat(ref element, ref count) => {