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

test/plugin_transformer_test.dart

+// 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 'common.dart';

[Jennifer Messerly, 2015/01/30 20:34:26]

trivial: put this after package: imports?

[jakemac, 2015/01/30 22:16:18]

Done.

+import 'package:analyzer/analyzer.dart';
+import 'package:initialize/plugin_transformer.dart';
+import 'package:source_maps/refactor.dart';
+import 'package:unittest/compact_vm_config.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')),

[Jennifer Messerly, 2015/01/30 20:34:26]

long line

[jakemac, 2015/01/30 22:16:18]

This is actually intentional in this case, for simplicity these generated files
do violate the 80 character rule. For instance the removeInitializer function
just removes the line that the initializer starts on.

We could potentially hook in the formatter or something but I don't think it
would really provide much benefit for generated files.

[Jennifer Messerly, 2015/01/30 23:11:03]

right, but this is a string literal in the a human authored test right? and
you're already replacing all leading whitespace ... it seems like the indent
level should just be reduced, then it would be alright as far as style guide is
concerned :)

+            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();
+        }
+        '''.replaceAll('        ', '')
+  }, {
+    '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();
+        }
+        '''.replaceAll('        ', '')
+  }, []);
+}