Index: sdk/lib/codec/json.dart |
diff --git a/sdk/lib/codec/json.dart b/sdk/lib/codec/json.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..78a075305516df695a6821a677f76e8f3ff5c7f1 |
--- /dev/null |
+++ b/sdk/lib/codec/json.dart |
@@ -0,0 +1,51 @@ |
+// Copyright (c) 2013, 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 dart.codec; |
+ |
+final JSON = new JsonCodec(); |
+ |
+/** |
+ * A [JsonCodec] encodes JSON objects to strings and decodes strings to |
+ * JSON objects. |
+ */ |
+class JsonCodec extends Codec<Object, String> { |
+ const JsonCodec(); |
+ |
+ /** |
+ * Creates a `JsonCodec` with the given reviver. |
+ * |
+ * The [reviver] function is called once for each object or list property |
+ * that has been parsed during decoding. The `key` argument is either the |
+ * integer list index for a list property, the map string for object |
+ * properties, or `null` for the final result. |
+ */ |
+ factory JsonCodec.withReviver(reviver(var key, var value)) = |
+ _ReviverJsonCodec; |
+ |
+ /** |
+ * Parses the string and returns the resulting Json object. |
+ * |
+ * The optional [reviver] function, if provided, is called once for each |
+ * object or list property parsed. |
+ */ |
+ Object decode(String str, {reviver(var key, var value)}) { |
+ return new JsonDecoder(reviver).convert(str); |
+ } |
+ |
+ JsonEncoder get encoder => new JsonEncoder(); |
+ JsonDecoder get decoder => new JsonDecoder(null); |
+} |
+ |
+class _ReviverJsonCodec extends JsonCodec { |
+ final Function _reviver; |
+ _ReviverJsonCodec(this._reviver); |
+ |
+ Object decode(String str, {reviver(var key, var value)}) { |
+ if (reviver == null) reviver = _reviver; |
+ return new JsonDecoder(reviver).convert(str); |
+ } |
+ |
+ JsonDecoder get decoder => new JsonDecoder(_reviver); |
+} |