chakrashim: fixed openssl native add-ons

- Added Value::IsArrayBufferView() needed for openssl native add-ons.
Implemented ArrayBufferView::HasBuffer() and ArrayBuffer::Cast().

- chakrashim: updated v8-version

- removed an unused method from chakrashim.

PR-URL: #96
Reviewed-By: Jianchun Xu <Jianchun.Xu@microsoft.com>

deps/chakrashim/include/v8-version.h

@@ -32,9 +32,9 @@
 // NOTE these macros are used by some of the tool scripts and the build
 // system so their names cannot be changed without changing the scripts.
 #define V8_MAJOR_VERSION 5
-#define V8_MINOR_VERSION 0
-#define V8_BUILD_NUMBER 71
-#define V8_PATCH_LEVEL 52
+#define V8_MINOR_VERSION 1
+#define V8_BUILD_NUMBER 281
+#define V8_PATCH_LEVEL 69
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)

deps/chakrashim/include/v8.h

@@ -969,6 +969,7 @@ class V8_EXPORT Value : public Data {
   bool IsRegExp() const;
   bool IsExternal() const;
   bool IsArrayBuffer() const;
+  bool IsArrayBufferView() const;
   bool IsTypedArray() const;
   bool IsUint8Array() const;
   bool IsUint8ClampedArray() const;

deps/chakrashim/src/jsrtutils.cc

@@ -703,28 +703,6 @@ JsErrorCode DefineProperty(JsValueRef object,
   return error;
 }
 
-JsErrorCode DefineProperty(JsValueRef object,
-                           const wchar_t * propertyName,
-                           PropertyDescriptorOptionValues writable,
-                           PropertyDescriptorOptionValues enumerable,
-                           PropertyDescriptorOptionValues configurable,
-                           JsValueRef value,
-                           JsValueRef getter,
-                           JsValueRef setter) {
-  JsErrorCode error;
-  JsPropertyIdRef propertyIdRef;
-
-  error = JsGetPropertyIdFromName(propertyName, &propertyIdRef);
-  if (error != JsNoError) {
-    return error;
-  }
-
-  error = DefineProperty(
-    object, propertyIdRef, writable, enumerable, configurable, value,
-    getter, setter);
-  return error;
-}
-
 JsErrorCode GetPropertyIdFromName(JsValueRef nameRef,
                                   JsPropertyIdRef *idRef) {
   JsErrorCode error;

deps/chakrashim/src/v8typedarray.cc

@@ -54,6 +54,20 @@ size_t ArrayBufferView::ByteLength() {
   return result;
 }
 
+bool ArrayBufferView::HasBuffer() const {
+  JsValueRef result;
+  if (JsGetTypedArrayInfo((JsValueRef)this,
+                          nullptr, &result, nullptr, nullptr) != JsNoError) {
+    return false;
+  }
+  return result != nullptr;
+}
+
+ArrayBufferView* ArrayBufferView::Cast(Value* obj) {
+  CHAKRA_ASSERT(obj->IsArrayBufferView());
+  return static_cast<ArrayBufferView*>(obj);
+}
+
 size_t TypedArray::Length() {
   JsValueRef typedArrayRef = (JsValueRef)this;
   int result;

deps/chakrashim/src/v8value.cc

@@ -111,6 +111,11 @@ DEFINE_TYPEDARRAY_CHECK(Int32)
 DEFINE_TYPEDARRAY_CHECK(Float32)
 DEFINE_TYPEDARRAY_CHECK(Float64)
 
+
+bool Value::IsArrayBufferView() const {
+  return IsTypedArray() || IsDataView();
+}
+
 bool Value::IsDataView() const {
   return IsOfType(this, JsValueType::JsDataView);
 }