Support for DartBlockBody, DartExpressionBody, DartOmit in java2dart.

pkg/analyzer/lib/src/generated/parser.dart

Index: pkg/analyzer/lib/src/generated/parser.dart
diff --git a/pkg/analyzer/lib/src/generated/parser.dart b/pkg/analyzer/lib/src/generated/parser.dart
index 42a52424a0300a19c74afee7cac618dcc11a5215..dd4627993bbbdd04680f05d57c92e435495d6f1e 100644
--- a/pkg/analyzer/lib/src/generated/parser.dart
+++ b/pkg/analyzer/lib/src/generated/parser.dart
@@ -8563,6 +8563,10 @@ class ResolutionCopier implements AstVisitor<bool> {
 class ToFormattedSourceVisitor implements AstVisitor<Object> {

[Brian Wilkerson, 2014/03/07 16:12:31]

I don't understand why this class is here. It is part of the java2dart
translator, not part of the engine.

[scheglov, 2014/03/07 22:47:44]

You are right.
I used it once about a year ago, but we don't need it in production.
Removed.

   static String COMMENTS_KEY = "List of comments before statement";
 
+  static String BLOCK_BODY_KEY = "Block body source";
+
+  static String EXPRESSION_BODY_KEY = "Expression body source";
+
   /**
    * The writer to which the source is to be written.
    */
@@ -9161,10 +9165,25 @@ class ToFormattedSourceVisitor implements AstVisitor<Object> {
     if (!node.isGetter) {
       visitNode(node.parameters);
     }
-    if (node.body is! EmptyFunctionBody) {
-      _writer.print(' ');
+    String bodySource;
+    if ((bodySource = node.getProperty(BLOCK_BODY_KEY) as String) != null) {
+      _writer.print(" {");
+      if (!bodySource.isEmpty) {
+        nl();
+        _writer.print(bodySource);
+      }
+      nl2();
+      _writer.print('}');
+    } else if ((bodySource = node.getProperty(EXPRESSION_BODY_KEY) as String) != null) {
+      _writer.print(" => ");
+      _writer.print(bodySource);
+      _writer.print(';');
+    } else {
+      if (node.body is! EmptyFunctionBody) {
+        _writer.print(' ');
+      }
+      visitNode(node.body);
     }
-    visitNode(node.body);
     return null;
   }