Translate private Java members to private Dart members.

editor/util/plugins/com.google.dart.java2dart/resources/java_engine.dart

 library java.engine;
 
 import 'java_core.dart';
 
 /**
  * A predicate is a one-argument function that returns a boolean value.
  */
 typedef bool Predicate<E>(E argument);
 
 class StringUtilities {
@@ skipping 174 matching lines @@
   static int combineHashCodes(int first, int second) => first * 31 + second;
 }
 
 class UUID {
   static int __nextId = 0;
   final String id;
   UUID(this.id);
   String toString() => id;
   static UUID randomUUID() => new UUID((__nextId).toString());
 }
+
+
+/**
+ * Wrapper around [Function] which should be called with "target" and "arguments".
+ */
+class MethodTrampoline {

[Brian Wilkerson, 2014/03/07 19:07:01]

Where is this needed?

[scheglov, 2014/03/07 19:50:53]

Moved to parser.dart where it is used.

+  int parameterCount;
+  Function trampoline;
+  MethodTrampoline(this.parameterCount, this.trampoline);
+  Object invoke(target, List arguments) {
+    if (arguments.length != parameterCount) {
+      throw new IllegalArgumentException("${arguments.length} != $parameterCount");
+    }
+    switch (parameterCount) {
+      case 0:
+        return trampoline(target);
+      case 1:
+        return trampoline(target, arguments[0]);
+      case 2:
+        return trampoline(target, arguments[0], arguments[1]);
+      case 3:
+        return trampoline(target, arguments[0], arguments[1], arguments[2]);
+      case 4:
+        return trampoline(target, arguments[0], arguments[1], arguments[2], arguments[3]);
+      default:
+        throw new IllegalArgumentException("Not implemented for > 4 arguments");
+    }
+  }
+}