Fix bug 5002:

runtime/lib/mirrors.cc

 // Copyright (c) 2012, 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.
 
 #include "include/dart_api.h"
 #include "include/dart_debugger_api.h"
 #include "platform/json.h"
 #include "vm/bootstrap_natives.h"
 #include "vm/dart_entry.h"
 #include "vm/exceptions.h"
@@ skipping 1004 matching lines @@
     return Dart_NewUnhandledExceptionError(mirrored_exc);
   } else {
     ASSERT(Dart_IsFatalError(error));
     return error;
   }
 }
 
 
 void NATIVE_ENTRY_FUNCTION(Mirrors_makeLocalMirrorSystem)(
     Dart_NativeArguments args) {
+  Dart_EnterScope();
   Dart_Handle mirrors = CreateMirrorSystem();
   if (Dart_IsError(mirrors)) {
     Dart_PropagateError(mirrors);
   }
   Dart_SetReturnValue(args, mirrors);
+  Dart_ExitScope();
 }
 
 
 void NATIVE_ENTRY_FUNCTION(Mirrors_makeLocalInstanceMirror)(
     Dart_NativeArguments args) {
+  Dart_EnterScope();
   Dart_Handle reflectee = Dart_GetNativeArgument(args, 0);
   Dart_Handle mirror = CreateInstanceMirror(reflectee);
   if (Dart_IsError(mirror)) {
     Dart_PropagateError(mirror);
   }
   Dart_SetReturnValue(args, mirror);
+  Dart_ExitScope();
 }
 
 
 void NATIVE_ENTRY_FUNCTION(LocalObjectMirrorImpl_invoke)(
     Dart_NativeArguments args) {
+  Dart_EnterScope();
   Dart_Handle mirror = Dart_GetNativeArgument(args, 0);
   Dart_Handle member = Dart_GetNativeArgument(args, 1);
   // The wrapped arguments are either simple values or instance mirrors.
   Dart_Handle wrapped_invoke_args = Dart_GetNativeArgument(args, 2);
 
   Dart_Handle reflectee = UnwrapMirror(mirror);
   GrowableArray<Dart_Handle> invoke_args;
   Dart_Handle result = UnwrapArgList(wrapped_invoke_args, &invoke_args);
   if (Dart_IsError(result)) {
     Dart_PropagateError(result);
   }
   result =
       Dart_Invoke(reflectee, member, invoke_args.length(), invoke_args.data());
   if (Dart_IsError(result)) {
     // Instead of propagating the error from an invoke 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);
+  Dart_ExitScope();
 }
 
 
 void NATIVE_ENTRY_FUNCTION(LocalObjectMirrorImpl_getField)(
     Dart_NativeArguments args) {
+  Dart_EnterScope();
   Dart_Handle mirror = Dart_GetNativeArgument(args, 0);
   Dart_Handle fieldName = Dart_GetNativeArgument(args, 1);
 
   Dart_Handle reflectee = UnwrapMirror(mirror);
   Dart_Handle result = Dart_GetField(reflectee, fieldName);
   if (Dart_IsError(result)) {
     // Instead of propagating the error from a GetField 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);
+  Dart_ExitScope();
 }
 
 
 void NATIVE_ENTRY_FUNCTION(LocalObjectMirrorImpl_setField)(
     Dart_NativeArguments args) {
+  Dart_EnterScope();
   Dart_Handle mirror = Dart_GetNativeArgument(args, 0);
   Dart_Handle fieldName = Dart_GetNativeArgument(args, 1);
   // The wrapped argument is either a simple value or instance mirror.
   Dart_Handle wrapped_arg = Dart_GetNativeArgument(args, 2);
 
   Dart_Handle reflectee = UnwrapMirror(mirror);
   Dart_Handle set_arg = UnwrapArg(wrapped_arg);
   if (Dart_IsError(set_arg)) {
     Dart_PropagateError(set_arg);
   }
   Dart_Handle result = Dart_SetField(reflectee, fieldName, set_arg);
   if (Dart_IsError(result)) {
     // Instead of propagating the error from a SetField 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);
+  Dart_ExitScope();
 }
 
 
 void NATIVE_ENTRY_FUNCTION(LocalClosureMirrorImpl_apply)(
     Dart_NativeArguments args) {
+  Dart_EnterScope();
   Dart_Handle mirror = Dart_GetNativeArgument(args, 0);
   // The wrapped arguments are either simple values or instance mirrors.
   Dart_Handle wrapped_invoke_args = Dart_GetNativeArgument(args, 1);
 
   Dart_Handle reflectee = UnwrapMirror(mirror);
   GrowableArray<Dart_Handle> invoke_args;
   Dart_Handle result = UnwrapArgList(wrapped_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);
+  Dart_ExitScope();
 }
 
 
 void NATIVE_ENTRY_FUNCTION(LocalClassMirrorImpl_invokeConstructor)(
     Dart_NativeArguments args) {
+  Dart_EnterScope();
   Dart_Handle klass_mirror = Dart_GetNativeArgument(args, 0);
   Dart_Handle constructor_name = Dart_GetNativeArgument(args, 1);
   // The wrapped arguments are either simple values or instance mirrors.
   Dart_Handle wrapped_invoke_args = Dart_GetNativeArgument(args, 2);
 
   Dart_Handle klass = UnwrapMirror(klass_mirror);
   GrowableArray<Dart_Handle> invoke_args;
   Dart_Handle result = UnwrapArgList(wrapped_invoke_args, &invoke_args);
   if (Dart_IsError(result)) {
     Dart_PropagateError(result);
   }
   result = Dart_New(klass,
                     constructor_name,
                     invoke_args.length(),
                     invoke_args.data());
   if (Dart_IsError(result)) {
     // Instead of propagating the error from an invoke 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);
+  Dart_ExitScope();
 }
 
 
 void HandleMirrorsMessage(Isolate* isolate,
                           Dart_Port reply_port,
                           const Instance& message) {
   UNIMPLEMENTED();
 }
 
 }  // namespace dart