Shared token objects

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 3112 matching lines @@
   void set_literal(const String& literal) const;
   void set_value(const Object& value) const;
 
   FINAL_HEAP_OBJECT_IMPLEMENTATION(LiteralToken, Object);
   friend class Class;
 };
 
 
 class TokenStream : public Object {
  public:
-  RawArray* TokenObjects() const;
-  void SetTokenObjects(const Array& value) const;
+  RawGrowableObjectArray* TokenObjects() const;
+  void SetTokenObjects(const GrowableObjectArray& value) const;
 
   RawExternalTypedData* GetStream() const;
   void SetStream(const ExternalTypedData& stream) const;
 
   RawString* GenerateSource() const;
   RawString* GenerateSource(intptr_t start, intptr_t end) const;
   intptr_t ComputeSourcePosition(intptr_t tok_pos) const;
 
   RawString* PrivateKey() const;
 
   static const intptr_t kBytesPerElement = 1;
   static const intptr_t kMaxElements = kSmiMax / kBytesPerElement;
 
   static intptr_t InstanceSize() {
     return RoundedAllocationSize(sizeof(RawTokenStream));
   }
 
   static RawTokenStream* New(intptr_t length);
   static RawTokenStream* New(const Scanner::GrowableTokenStream& tokens,
-                             const String& private_key);
+                             const String& private_key,
+                             bool use_shared_tokens);
+
+  static void OpenSharedTokenList(Isolate* isolate);
+  static void CloseSharedTokenList(Isolate* isolate);
 
   // The class Iterator encapsulates iteration over the tokens
   // in a TokenStream object.
   class Iterator : ValueObject {
    public:
     enum StreamType {
       kNoNewlines,
       kAllTokens
     };
 
@@ skipping 24 matching lines @@
     // into the token objects array for IDENT or literal tokens).
     intptr_t ReadToken() {
       int64_t value = stream_.ReadUnsigned();
       ASSERT((value >= 0) && (value <= kIntptrMax));
       return static_cast<intptr_t>(value);
     }
 
     TokenStream& tokens_;
     ExternalTypedData& data_;
     ReadStream stream_;
-    Array& token_objects_;
+    GrowableObjectArray& token_objects_;
     Object& obj_;
     intptr_t cur_token_pos_;
     Token::Kind cur_token_kind_;
     intptr_t cur_token_obj_index_;
     Iterator::StreamType stream_type_;
   };
 
  private:
   void SetPrivateKey(const String& value) const;
 
@@ skipping 16 matching lines @@
   RawGrowableObjectArray* GenerateLineNumberArray() const;
   RawScript::Kind kind() const {
     return static_cast<RawScript::Kind>(raw_ptr()->kind_);
   }
   const char* GetKindAsCString() const;
   intptr_t line_offset() const { return raw_ptr()->line_offset_; }
   intptr_t col_offset() const { return raw_ptr()->col_offset_; }
 
   RawTokenStream* tokens() const { return raw_ptr()->tokens_; }
 
-  void Tokenize(const String& private_key) const;
+  void Tokenize(const String& private_key,
+                bool use_shared_tokens = true) const;
 
   RawLibrary* FindLibrary() const;
   RawString* GetLine(intptr_t line_number,
                      Heap::Space space = Heap::kNew) const;
   RawString* GetSnippet(intptr_t from_line,
                         intptr_t from_column,
                         intptr_t to_line,
                         intptr_t to_column) const;
 
   void SetLocationOffset(intptr_t line_offset, intptr_t col_offset) const;
@@ skipping 4958 matching lines @@
 
 
 RawObject* MegamorphicCache::GetTargetFunction(const Array& array,
                                                intptr_t index) {
   return array.At((index * kEntryLength) + kTargetFunctionIndex);
 }
 
 }  // namespace dart
 
 #endif  // VM_OBJECT_H_