Make Dart_GetClass work for private classes.

vm/object.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 "vm/object.h"
 
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/bigint_operations.h"
 #include "vm/bootstrap.h"
@@ skipping 5172 matching lines @@
 
 RawClass* Library::LookupLocalClass(const String& name) const {
   Object& obj = Object::Handle(LookupLocalObject(name));
   if (!obj.IsNull() && obj.IsClass()) {
     return Class::CheckedHandle(obj.raw()).raw();
   }
   return Class::null();
 }
 
 
+RawClass* Library::LookupClassAllowPrivate(const String& name) const {
+  // See if the class is available in this library or in the top level
+  // scope of any imported library.
+  Isolate* isolate = Isolate::Current();
+  Class& cls = Class::Handle(isolate);
+  cls = LookupClass(name);
+  if (!cls.IsNull()) {
+    return cls.raw();
+  }
+
+  // Now try to lookup the class using its private name, but only in
+  // this library (not in imported libraries).
+  if (ShouldBePrivate(name)) {
+    String& private_name = String::Handle(isolate, PrivateName(name));
+    const Object& obj = Object::Handle(LookupLocalObject(private_name));
+    if (!obj.IsNull()) {
+      if (obj.IsClass()) {
+        cls ^= obj.raw();
+        return cls.raw();
+      }
+    }
+  }
+
+  return Class::null();
+}
+
+
 RawLibraryPrefix* Library::LookupLocalLibraryPrefix(const String& name) const {
   Object& obj = Object::Handle(LookupLocalObject(name));
   if (!obj.IsNull() && obj.IsLibraryPrefix()) {
     return LibraryPrefix::CheckedHandle(obj.raw()).raw();
   }
   return LibraryPrefix::null();
 }
 
 
 void Library::AddAnonymousClass(const Class& cls) const {
@@ skipping 4816 matching lines @@
   const String& str = String::Handle(pattern());
   const char* format = "JSRegExp: pattern=%s flags=%s";
   intptr_t len = OS::SNPrint(NULL, 0, format, str.ToCString(), Flags());
   char* chars = reinterpret_cast<char*>(
       Isolate::Current()->current_zone()->Allocate(len + 1));
   OS::SNPrint(chars, (len + 1), format, str.ToCString(), Flags());
   return chars;
 }
 
 }  // namespace dart