Added ClosureMirror to dart:mirrors. Added Dart_ClosureFunction to the

runtime/lib/mirrors.cc

Index: runtime/lib/mirrors.cc
===================================================================
--- runtime/lib/mirrors.cc	(revision 9835)
+++ runtime/lib/mirrors.cc	(working copy)
@@ -301,7 +301,7 @@
 
 static Dart_Handle CreateMethodMirror(Dart_Handle func,
                                       Dart_Handle func_name,
-                                      Dart_Handle lib_mirror) {
+                                      Dart_Handle owner_mirror) {
   ASSERT(Dart_IsFunction(func));
   Dart_Handle cls_name = Dart_NewString("_LocalMethodMirrorImpl");
   Dart_Handle cls = Dart_GetClass(MirrorLib(), cls_name);
@@ -388,7 +388,7 @@
   // TODO(turnidge): Implement constructor kinds (arguments 7 - 10).
   Dart_Handle args[] = {
     func_name,
-    lib_mirror,
+    owner_mirror,
     parameter_mirrors,
     Dart_NewBoolean(is_static),
     Dart_NewBoolean(is_abstract),
@@ -695,7 +695,10 @@
     return CreateNullMirror();
   }
   ASSERT(Dart_IsInstance(instance));
-  Dart_Handle cls_name = Dart_NewString("_LocalInstanceMirrorImpl");
+
+  bool is_closure = Dart_IsClosure(instance);
+  Dart_Handle cls_name = Dart_NewString(
+    is_closure ? "_LocalClosureMirrorImpl" : "_LocalInstanceMirrorImpl");
   Dart_Handle cls = Dart_GetClass(MirrorLib(), cls_name);
   if (Dart_IsError(cls)) {
     return cls;
@@ -711,6 +714,26 @@
     instance
   };
   Dart_Handle mirror = Dart_New(cls, Dart_Null(), ARRAY_SIZE(args), args);
+
+  if (is_closure) {
+    // We set the function field of ClosureMirrors outside of the constructor
+    // to break the mutual recursion.
+    Dart_Handle func = Dart_ClosureFunction(instance);
+    if (Dart_IsError(func)) {
+      return func;
+    }
+    Dart_Handle func_name = Dart_NewString("call");
+    Dart_Handle func_mirror = CreateMethodMirror(func, func_name, mirror);
+    if (Dart_IsError(func_mirror)) {
+      return func_mirror;
+    }
+
+    Dart_Handle func_field_name = Dart_NewString("_function");
+    Dart_Handle result = Dart_SetField(mirror, func_field_name, func_mirror);
+    if (Dart_IsError(result)) {
+      return result;
+    }
+  }
   return mirror;
 }
 
@@ -856,6 +879,33 @@
 }
 
 
+void NATIVE_ENTRY_FUNCTION(LocalClosureMirrorImpl_apply)(
+    Dart_NativeArguments args) {
+  Dart_Handle mirror = Dart_GetNativeArgument(args, 0);
+  Dart_Handle raw_invoke_args = Dart_GetNativeArgument(args, 1);
+
+  Dart_Handle reflectee = UnwrapMirror(mirror);
+  GrowableArray<Dart_Handle> invoke_args;
+  Dart_Handle result = UnwrapArgList(raw_invoke_args, &invoke_args);
+  if (Dart_IsError(result)) {
+    Dart_PropagateError(result);
+  }
+  result =
+      Dart_InvokeClosure(reflectee, invoke_args.length(), invoke_args.data());
+  if (Dart_IsError(result)) {
+    // Instead of propagating the error from an apply directly, we
+    // provide reflective access to the error.
+    Dart_PropagateError(CreateMirroredError(result));
+  }
+
+  Dart_Handle wrapped_result = CreateInstanceMirror(result);
+  if (Dart_IsError(wrapped_result)) {
+    Dart_PropagateError(wrapped_result);
+  }
+  Dart_SetReturnValue(args, wrapped_result);
+}
+
+
 void HandleMirrorsMessage(Isolate* isolate,
                           Dart_Port reply_port,
                           const Instance& message) {