VM: Re-format to use at most one newline between functions

runtime/vm/handles.h

 // Copyright (c) 2011, 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_HANDLES_H_
 #define RUNTIME_VM_HANDLES_H_
 
 #include "vm/allocation.h"
 #include "vm/flags.h"
 #include "vm/os.h"
@@ skipping 37 matching lines @@
 //
 // There are some critical regions of the Dart VM were we may need to manipulate
 // raw dart objects directly. We use NOHANDLESCOPE to assert that we do not
 // add code that will allocate new handles during this critical area.
 // {
 //   NOHANDLESCOPE(thread);
 //   ....
 //   ....
 // }
 
-
 // Forward declarations.
 class ObjectPointerVisitor;
 class Thread;
 
 DECLARE_FLAG(bool, verify_handles);
 
 class HandleVisitor {
  public:
   explicit HandleVisitor(Thread* thread) : thread_(thread) {}
   virtual ~HandleVisitor() {}
 
   Thread* thread() const { return thread_; }
 
   virtual void VisitHandle(uword addr) = 0;
 
  private:
   Thread* thread_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(HandleVisitor);
 };
 
-
 template <int kHandleSizeInWords, int kHandlesPerChunk, int kOffsetOfRawPtr>
 class Handles {
  public:
   Handles()
       : zone_blocks_(NULL),
         first_scoped_block_(NULL),
         scoped_blocks_(&first_scoped_block_) {}
   ~Handles() { DeleteAll(); }
 
   // Visit all object pointers stored in the various handles.
@@ skipping 141 matching lines @@
   HandlesBlock* scoped_blocks_;      // List of scoped handles.
 
   friend class HandleScope;
   friend class Dart;
   friend class ObjectStore;
   friend class Thread;
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Handles);
 };
 
-
 static const int kVMHandleSizeInWords = 2;
 static const int kVMHandlesPerChunk = 64;
 static const int kOffsetOfRawPtr = kWordSize;
 class VMHandles : public Handles<kVMHandleSizeInWords,
                                  kVMHandlesPerChunk,
                                  kOffsetOfRawPtr> {
  public:
   static const int kOffsetOfRawPtrInHandle = kOffsetOfRawPtr;
 
   VMHandles()
@@ skipping 21 matching lines @@
   static bool IsZoneHandle(uword handle);
 
   // Returns number of handles, these functions are used for testing purposes.
   static int ScopedHandleCount();
   static int ZoneHandleCount();
 
   friend class ApiZone;
   friend class ApiNativeScope;
 };
 
-
 // The class HandleScope is used to start a new handles scope in the code.
 // It is used as follows:
 // {
 //   HANDLESCOPE(thread);
 //   ....
 //   .....
 //   code that creates some scoped handles.
 //   ....
 // }
 class HandleScope : public StackResource {
  public:
   explicit HandleScope(Thread* thread);
   ~HandleScope();
 
  private:
   void Initialize();
 
   VMHandles::HandlesBlock* saved_handle_block_;  // Handle block at prev scope.
   uword saved_handle_slot_;  // Next available handle slot at previous scope.
 #if defined(DEBUG)
   HandleScope* link_;  // Link to previous scope.
 #endif
   DISALLOW_IMPLICIT_CONSTRUCTORS(HandleScope);
 };
 
 // Macro to start a new Handle scope.
 #define HANDLESCOPE(thread)                                                    \
   dart::HandleScope vm_internal_handles_scope_(thread);
 
-
 // The class NoHandleScope is used in critical regions of the virtual machine
 // code where raw dart object pointers are directly manipulated.
 // This class asserts that we do not add code that will allocate new handles
 // during this critical area.
 // It is used as follows:
 // {
 //   NOHANDLESCOPE(thread);
 //   ....
 //   .....
 //   critical code that manipulates dart objects directly.
@@ skipping 20 matching lines @@
 };
 #endif  // defined(DEBUG)
 
 // Macro to start a no handles scope in the code.
 #define NOHANDLESCOPE(thread)                                                  \
   dart::NoHandleScope no_vm_internal_handles_scope_(thread);
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_HANDLES_H_