Index: lib/protobuf/runtime/DynamicBuilder.dart |
diff --git a/lib/protobuf/runtime/DynamicBuilder.dart b/lib/protobuf/runtime/DynamicBuilder.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..b1711734f53f01493d4b0b3e5e172662225d64b7 |
--- /dev/null |
+++ b/lib/protobuf/runtime/DynamicBuilder.dart |
@@ -0,0 +1,36 @@ |
+// 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. |
+ |
+/** |
+ * Provides an implementation of 'noSuchMethod' that may be used as a |
+ * substitute for fixed getter and setter methods. |
+ */ |
+class DynamicBuilder extends Builder { |
+ |
+ /** |
+ * Implement getXxx, setXxx, and hasXxx methods dynamically. |
+ */ |
+ Dynamic noSuchMethod(String name, List args) { |
+ if (name.startsWith("get:")) { |
+ int tagNumber = info_.tagNumber(name.substring(4)); |
+ if (tagNumber !== null) { |
+ return getField(tagNumber); |
+ } |
+ } else if (name.startsWith("set:")) { |
+ int tagNumber = info_.tagNumber(name.substring(4)); |
+ if (tagNumber !== null) { |
+ setField(tagNumber, args[0]); |
+ return; |
+ } |
+ } else if (name.startsWith("has") && name.length > 3) { |
+ String fieldName = "${name[3].toLowerCase()}${name.substring(4)}"; |
+ int tagNumber = info_.tagNumber(fieldName); |
+ if (tagNumber !== null) { |
+ return hasField(tagNumber); |
+ } |
+ } |
+ // Throw an exception like what would have occurred if not intercepted here |
+ throw new NoSuchMethodException(this, name, args); |
+ } |
+} |