Introduce cache of resolved names in library

runtime/vm/object.h

 // 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.
 
 #ifndef VM_OBJECT_H_
 #define VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 2581 matching lines @@
 
   // Library scope name dictionary.
   //
   // TODO(turnidge): The Lookup functions are not consistent in how
   // they deal with private names.  Go through and make them a bit
   // more regular.
   void AddClass(const Class& cls) const;
   void AddObject(const Object& obj, const String& name) const;
   void ReplaceObject(const Object& obj, const String& name) const;
   RawObject* LookupReExport(const String& name) const;
-  RawObject* LookupObject(const String& name) const;
   RawObject* LookupObjectAllowPrivate(const String& name) const;
   RawObject* LookupLocalObjectAllowPrivate(const String& name) const;
   RawObject* LookupLocalObject(const String& name) const;
   RawObject* LookupImportedObject(const String& name) const;
   RawClass* LookupClass(const String& name) const;
   RawClass* LookupClassAllowPrivate(const String& name) const;
   RawClass* LookupLocalClass(const String& name) const;
   RawField* LookupFieldAllowPrivate(const String& name) const;
   RawField* LookupLocalField(const String& name) const;
   RawFunction* LookupFunctionAllowPrivate(const String& name) const;
   RawFunction* LookupLocalFunction(const String& name) const;
   RawLibraryPrefix* LookupLocalLibraryPrefix(const String& name) const;
   RawScript* LookupScript(const String& url) const;
   RawArray* LoadedScripts() const;
 
+  // Resolve name in the scope of this library. First check the cache
+  // of already resolved names for this library. Then look in the
+  // local dictionary for the unmangled name N, the getter name get:N
+  // and setter name set:N.
+  // If the local dictionary contains no entry for these names,
+  // look in the scopes of all libraries that are imported
+  // without a library prefix.
+  RawObject* ResolveName(const String& name) const;
+
   void AddAnonymousClass(const Class& cls) const;
 
   void AddExport(const Namespace& ns) const;
 
   void AddClassMetadata(const Class& cls, intptr_t token_pos) const;
   void AddFieldMetadata(const Field& field, intptr_t token_pos) const;
   void AddFunctionMetadata(const Function& func, intptr_t token_pos) const;
   void AddLibraryMetadata(const Class& cls, intptr_t token_pos) const;
   void AddTypeParameterMetadata(const TypeParameter& param,
                                 intptr_t token_pos) const;
@@ skipping 88 matching lines @@
   void set_num_imports(intptr_t value) const {
     raw_ptr()->num_imports_ = value;
   }
   RawArray* imports() const { return raw_ptr()->imports_; }
   RawArray* exports() const { return raw_ptr()->exports_; }
   bool HasExports() const;
   RawArray* loaded_scripts() const { return raw_ptr()->loaded_scripts_; }
   RawGrowableObjectArray* metadata() const { return raw_ptr()->metadata_; }
   RawArray* dictionary() const { return raw_ptr()->dictionary_; }
   void InitClassDictionary() const;
+
+  RawArray* resolved_names() const { return raw_ptr()->resolved_names_; }
+  void InitResolvedNamesCache(intptr_t size) const;
+  void GrowResolvedNamesCache() const;
+  bool LookupResolvedNamesCache(const String& name, Object* obj) const;
+  void AddToResolvedNamesCache(const String& name, const Object& obj) const;
+  void InvalidateResolvedName(const String& name) const;
+  void InvalidateResolvedNamesCache() const;
+
   void InitImportList() const;
   void GrowDictionary(const Array& dict, intptr_t dict_size) const;
   static RawLibrary* NewLibraryHelper(const String& url,
                                       bool import_core_lib);
   RawObject* LookupEntry(const String& name, intptr_t *index) const;
 
   RawString* MakeMetadataName(const Object& obj) const;
   RawField* GetMetadataField(const String& metaname) const;
   void AddMetadata(const Class& cls,
                    const String& name,
@@ skipping 3939 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_