Port "Add snapshoting methods for code's metadata."

runtime/vm/snapshot.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_SNAPSHOT_H_
 #define VM_SNAPSHOT_H_
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/bitfield.h"
@@ skipping 266 matching lines @@
   PassiveObject* PassiveObjectHandle() { return &pobj_; }
   Array* ArrayHandle() { return &array_; }
   String* StringHandle() { return &str_; }
   AbstractType* TypeHandle() { return &type_; }
   TypeArguments* TypeArgumentsHandle() { return &type_arguments_; }
   Array* TokensHandle() { return &tokens_; }
   TokenStream* StreamHandle() { return &stream_; }
   ExternalTypedData* DataHandle() { return &data_; }
   TypedData* TypedDataHandle() { return &typed_data_; }
   Snapshot::Kind kind() const { return kind_; }
+  bool allow_code() const { return false; }
 
   // Reads an object.
   RawObject* ReadObject();
 
   // Add object to backward references.
   void AddBackRef(intptr_t id, Object* obj, DeserializeState state);
 
   // Get an object from the backward references list.
   Object* GetBackRef(intptr_t id);
 
@@ skipping 142 matching lines @@
   friend class Stacktrace;
   friend class TokenStream;
   friend class Type;
   friend class TypeArguments;
   friend class TypeParameter;
   friend class TypeRef;
   friend class UnresolvedClass;
   friend class UnhandledException;
   friend class WeakProperty;
   friend class MirrorReference;
+  friend class ExceptionHandlers;
+  friend class LocalVarDescriptors;
   DISALLOW_COPY_AND_ASSIGN(SnapshotReader);
 };
 
 
 class VmIsolateSnapshotReader : public SnapshotReader {
  public:
   VmIsolateSnapshotReader(const uint8_t* buffer, intptr_t size, Zone* zone);
   ~VmIsolateSnapshotReader();
 
   RawApiError* ReadVmIsolateSnapshot();
@@ skipping 192 matching lines @@
   SnapshotWriter(Snapshot::Kind kind,
                  uint8_t** buffer,
                  ReAlloc alloc,
                  intptr_t initial_size,
                  ForwardList* forward_list,
                  bool can_send_any_object);
 
  public:
   // Snapshot kind.
   Snapshot::Kind kind() const { return kind_; }
+  bool allow_code() const { return false; }
 
   // Serialize an object into the buffer.
   void WriteObject(RawObject* raw);
 
   uword GetObjectTags(RawObject* raw);
 
   Exceptions::ExceptionType exception_type() const {
     return exception_type_;
   }
   void set_exception_type(Exceptions::ExceptionType type) {
@@ skipping 81 matching lines @@
   friend class RawJSRegExp;
   friend class RawLibrary;
   friend class RawLiteralToken;
   friend class RawMirrorReference;
   friend class RawReceivePort;
   friend class RawScript;
   friend class RawStacktrace;
   friend class RawTokenStream;
   friend class RawTypeArguments;
   friend class RawUserTag;
+  friend class RawExceptionHandlers;
+  friend class RawLocalVarDescriptors;
   friend class SnapshotWriterVisitor;
   friend class WriteInlinedObjectVisitor;
   DISALLOW_COPY_AND_ASSIGN(SnapshotWriter);
 };
 
 
 class FullSnapshotWriter {
  public:
   static const intptr_t kInitialSize = 64 * KB;
   FullSnapshotWriter(uint8_t** vm_isolate_snapshot_buffer,
@@ skipping 90 matching lines @@
  private:
   SnapshotWriter* writer_;
   bool as_references_;
 
   DISALLOW_COPY_AND_ASSIGN(SnapshotWriterVisitor);
 };
 
 }  // namespace dart
 
 #endif  // VM_SNAPSHOT_H_