Initial steps into streaming the kernel flowgraph

runtime/vm/kernel.h

 // Copyright (c) 2016, 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 RUNTIME_VM_KERNEL_H_
 #define RUNTIME_VM_KERNEL_H_
 
 #if !defined(DART_PRECOMPILED_RUNTIME)
 #include "platform/assert.h"
 #include "vm/allocation.h"
@@ skipping 489 matching lines @@
     }
 
     // Rasta emits dart:_patch and we should treat it as a user library.
     if (name_->size() == patch_library_length &&
         strncmp(buffer, patch_library, patch_library_length) == 0) {
       return false;
     }
     return true;
   }
 
+  const uint8_t* kernel_data() { return kernel_data_; }
+  intptr_t kernel_data_size() { return kernel_data_size_; }
+
  private:
-  Library() : name_(NULL) {}
+  Library() : name_(NULL), kernel_data_(NULL), kernel_data_size_(-1) {}
 
   template <typename T>
   friend class List;
 
   Ref<String> name_;
   Ref<String> import_uri_;
   intptr_t source_uri_index_;
   List<Class> classes_;
   List<Field> fields_;
   List<Procedure> procedures_;
+  const uint8_t* kernel_data_;
+  intptr_t kernel_data_size_;
 
   DISALLOW_COPY_AND_ASSIGN(Library);
 };
 
 
 class Class : public LinkedNode {
  public:
   Class* ReadFrom(Reader* reader);
 
   virtual ~Class();
@@ skipping 2716 matching lines @@
 
 kernel::Program* ReadPrecompiledKernelFromBuffer(const uint8_t* buffer,
                                                  intptr_t buffer_length);
 
 
 
 }  // namespace dart
 
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)
 #endif  // RUNTIME_VM_KERNEL_H_