First cut at API for ES6 ArrayBuffers

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 8efb7c33c532f714277680ab503f4025fe233d80..99b88a88f07caa84defb79d02e4da8125e6d6bcf 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -1969,6 +1969,41 @@ class V8EXPORT Function : public Object {
   static void CheckCast(Value* obj);
 };
 

[rossberg, 2013/04/25 11:00:55]

Style: add empty line

[Dmitry Lomov (no reviews), 2013/04/25 11:48:01]

Done.

+/**
+ * An instance of the built-in ArrayBuffer construnctor (ES6 draft 15.13.5).

[rossberg, 2013/04/25 11:00:55]

Add a comment that this is still "experimental".

[Dmitry Lomov (no reviews), 2013/04/25 11:48:01]

Done.

+ */
+class V8EXPORT ArrayBuffer : public Object {
+ public:
+  /**
+   * Data length in bytes.
+   */
+  size_t ByteLength() const;
+  /**
+   * Raw pointer to the array buffer data
+   */
+  void* Data() const;
+
+  /**
+   * Create a new ArrayBuffer. Allocate |byte_length| bytes.
+   * Allocated memory will be owned by a created ArrayBuffer and
+   * will be deallocated when it is garbage-collected.
+   */
+  static Local<ArrayBuffer> New(size_t byte_length);
+
+  /**
+   * Create a new ArrayBuffer over existing memory block.

[rossberg, 2013/04/25 11:00:55]

Nit: "over an existing..."

[Dmitry Lomov (no reviews), 2013/04/25 11:48:01]

Done.

+   * The memory block will not be reclaimed when a created ArrayBuffer
+   * is garbage-collected.
+   */
+  static Local<ArrayBuffer> New(void* data, size_t byte_length);
+
+  V8_INLINE(static ArrayBuffer* Cast(Value* obj));
+
+ private:
+  ArrayBuffer();
+  static void CheckCast(Value* obj);
+};
+
 
 /**
  * An instance of the built-in Date constructor (ECMA-262, 15.9).
@@ -4429,7 +4464,7 @@ class Internals {
   static const int kJSObjectHeaderSize = 3 * kApiPointerSize;
   static const int kFixedArrayHeaderSize = 2 * kApiPointerSize;
   static const int kContextHeaderSize = 2 * kApiPointerSize;
-  static const int kContextEmbedderDataIndex = 55;
+  static const int kContextEmbedderDataIndex = 56;
   static const int kFullStringRepresentationMask = 0x07;
   static const int kStringEncodingMask = 0x4;
   static const int kExternalTwoByteRepresentationTag = 0x02;
@@ -5101,6 +5136,13 @@ Array* Array::Cast(v8::Value* value) {
   return static_cast<Array*>(value);
 }
 

[rossberg, 2013/04/25 11:00:55]

STyle: add empty line

[Dmitry Lomov (no reviews), 2013/04/25 11:48:01]

Done.

+ArrayBuffer* ArrayBuffer::Cast(v8::Value* value) {
+#ifdef V8_ENABLE_CHECKS
+  CheckCast(value);
+#endif
+  return static_cast<ArrayBuffer*>(value);
+}
+
 
 Function* Function::Cast(v8::Value* value) {
 #ifdef V8_ENABLE_CHECKS