Index: sdk/lib/_internal/compiler/implementation/lib/js_array.dart |
=================================================================== |
--- sdk/lib/_internal/compiler/implementation/lib/js_array.dart (revision 0) |
+++ sdk/lib/_internal/compiler/implementation/lib/js_array.dart (revision 0) |
@@ -0,0 +1,83 @@ |
+// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
+// for details. All rights reserved. Use of this source code is governed by a |
+// BSD-style license that can be found in the LICENSE file. |
+ |
+part of _interceptors; |
+ |
+/** |
+ * The interceptor class for [List]. The compiler recognizes this |
+ * class as an interceptor, and changes references to [:this:] to |
+ * actually use the receiver of the method, which is generated as an extra |
+ * argument added to each member. |
+ */ |
+class JSArray<E> implements List<E> { |
+ const JSArray(); |
+ |
+ void add(E value) { |
+ checkGrowable(this, 'add'); |
+ JS('void', r'#.push(#)', this, value); |
+ } |
+ |
+ E removeAt(int index) { |
+ if (index is !int) throw new ArgumentError(index); |
+ if (index < 0 || index >= length) { |
+ throw new RangeError.value(index); |
+ } |
+ checkGrowable(this, 'removeAt'); |
+ return JS('var', r'#.splice(#, 1)[0]', this, index); |
+ } |
+ |
+ E removeLast() { |
+ checkGrowable(this, 'removeLast'); |
+ if (length == 0) throw new RangeError.value(-1); |
+ return JS('var', r'#.pop()', this); |
+ } |
+ |
+ List<E> filter(bool f(E element)) { |
+ return Collections.filter(this, <E>[], f); |
+ } |
+ |
+ void addAll(Collection<E> collection) { |
+ for (Element e in collection) { |
+ this.add(e); |
+ } |
+ } |
+ |
+ void addLast(E value) { |
+ checkGrowable(this, 'addLast'); |
+ JS('void', r'#.push(#)', this, value); |
+ } |
+ |
+ void clear() { |
+ length = 0; |
+ } |
+ |
+ void forEach(void f(E element)) { |
+ return Collections.forEach(this, f); |
+ } |
+ |
+ Collection map(f(E element)) { |
+ return Collections.map(this, [], f); |
+ } |
+ |
+ reduce(initialValue, combine(previousValue, E element)) { |
+ return Collections.reduce(this, initialValue, combine); |
+ } |
+ |
+ List<E> getRange(int start, int length) { |
+ // TODO(ngeoffray): Parameterize the return value. |
+ if (0 == length) return []; |
+ checkNull(start); // TODO(ahe): This is not specified but co19 tests it. |
+ checkNull(length); // TODO(ahe): This is not specified but co19 tests it. |
+ if (start is !int) throw new ArgumentError(start); |
+ if (length is !int) throw new ArgumentError(length); |
+ if (length < 0) throw new ArgumentError(length); |
+ if (start < 0) throw new RangeError.value(start); |
+ int end = start + length; |
+ if (end > this.length) { |
+ throw new RangeError.value(length); |
+ } |
+ if (length < 0) throw new ArgumentError(length); |
+ return JS('List', r'#.slice(#, #)', this, start, end); |
+ } |
+} |