added plugin transformer which initializers can extend to do additional post-processing during tran…

test/plugin_transformer_test.dart

Index: test/plugin_transformer_test.dart
diff --git a/test/plugin_transformer_test.dart b/test/plugin_transformer_test.dart
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index 0000000000000000000000000000000000000000..df2a6e493e97e85adc692dc6fcb4afdecdcb35ec
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+++ b/test/plugin_transformer_test.dart
@@ -0,0 +1,63 @@
+// Copyright (c) 2015, 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.
+library initialize.plugin_transformer_test;
+
+import 'package:analyzer/analyzer.dart';
+import 'package:initialize/plugin_transformer.dart';
+import 'package:source_maps/refactor.dart';
+import 'package:unittest/compact_vm_config.dart';
+import 'common.dart';
+
+// Simple plugin which just removes all initMethod initializers.
+class DeleteInitMethodPlugin extends InitializePluginTransformer {
+  DeleteInitMethodPlugin(String bootstrap) : super(bootstrap);
+
+  initEntry(
+      InstanceCreationExpression expression, TextEditTransaction transaction) {
+    var firstArg = expression.argumentList.arguments[0];
+    if (firstArg is PrefixedIdentifier &&
+        firstArg.identifier.toString() == 'initMethod') {
+      removeInitializer(expression, transaction);
+    }
+  }
+}
+
+main() {
+  useCompactVMConfiguration();
+
+  var transformer = new DeleteInitMethodPlugin('web/index.bootstrap.dart');
+
+  testPhases('basic', [[transformer]], {
+    'a|web/index.bootstrap.dart': '''
+import 'package:initialize/src/static_loader.dart';
+import 'package:initialize/initialize.dart';
+import 'index.dart' as i0;
+
+main() {
+  initializers.addAll([
+    new InitEntry(i0.initMethod, const LibraryIdentifier(#a, null, 'a.dart')),
+    new InitEntry(i0.initMethod, const LibraryIdentifier(#a, 'a', 'a.dart')),
+    new InitEntry(i0.initMethod, i0.a),
+    new InitEntry(const i0.DynamicInit('a()'), i0.a),
+  ]);
+
+  i0.main();
+}
+'''
+  }, {
+    'a|web/index.bootstrap.dart': '''
+import 'package:initialize/src/static_loader.dart';
+import 'package:initialize/initialize.dart';
+import 'index.dart' as i0;
+
+main() {
+  initializers.addAll([
+    new InitEntry(const i0.DynamicInit('a()'), i0.a),
+  ]);
+
+  i0.main();
+}
+'''
+  }, []);
+}