WIP SharedArrayBuffer implementation

src/api.h

Index: src/api.h
diff --git a/src/api.h b/src/api.h
index 38bb9200364a88061fd77bf22e274b2227cef506..b0991b6db5ac3a64736838853ffb52df2ba1a0e8 100644
--- a/src/api.h
+++ b/src/api.h
@@ -159,6 +159,17 @@ class RegisteredExtension {
   V(Float32Array, JSTypedArray)              \
   V(Float64Array, JSTypedArray)              \
   V(DataView, JSDataView)                    \
+  V(SharedArrayBuffer, JSArrayBuffer)        \
+  V(SharedTypedArray, JSTypedArray)          \
+  V(SharedUint8Array, JSTypedArray)          \
+  V(SharedUint8ClampedArray, JSTypedArray)   \
+  V(SharedInt8Array, JSTypedArray)           \
+  V(SharedUint16Array, JSTypedArray)         \
+  V(SharedInt16Array, JSTypedArray)          \
+  V(SharedUint32Array, JSTypedArray)         \
+  V(SharedInt32Array, JSTypedArray)          \
+  V(SharedFloat32Array, JSTypedArray)        \
+  V(SharedFloat64Array, JSTypedArray)        \
   V(Name, Name)                              \
   V(String, String)                          \
   V(Symbol, Symbol)                          \
@@ -230,6 +241,29 @@ class Utils {
   static inline Local<Float64Array> ToLocalFloat64Array(
       v8::internal::Handle<v8::internal::JSTypedArray> obj);
 
+  static inline Local<SharedArrayBuffer> ToLocalShared(
+      v8::internal::Handle<v8::internal::JSArrayBuffer> obj);
+  static inline Local<SharedTypedArray> ToLocalShared(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+  static inline Local<SharedUint8Array> ToLocalSharedUint8Array(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+  static inline Local<SharedUint8ClampedArray> ToLocalSharedUint8ClampedArray(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+  static inline Local<SharedInt8Array> ToLocalSharedInt8Array(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+  static inline Local<SharedUint16Array> ToLocalSharedUint16Array(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+  static inline Local<SharedInt16Array> ToLocalSharedInt16Array(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+  static inline Local<SharedUint32Array> ToLocalSharedUint32Array(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+  static inline Local<SharedInt32Array> ToLocalSharedInt32Array(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+  static inline Local<SharedFloat32Array> ToLocalSharedFloat32Array(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+  static inline Local<SharedFloat64Array> ToLocalSharedFloat64Array(
+      v8::internal::Handle<v8::internal::JSTypedArray> obj);
+
   static inline Local<Message> MessageToLocal(
       v8::internal::Handle<v8::internal::Object> obj);
   static inline Local<Promise> PromiseToLocal(
@@ -347,6 +381,14 @@ inline bool ToLocal(v8::internal::MaybeHandle<v8::internal::Object> maybe,
   }
 
 
+#define MAKE_TO_LOCAL_SHARED_TYPED_ARRAY(Type, typeName, TYPE, ctype, size)   \
+  Local<v8::Shared##Type##Array> Utils::ToLocalShared##Type##Array(           \
+      v8::internal::Handle<v8::internal::JSTypedArray> obj) {                 \
+    DCHECK(obj->type() == v8::internal::kExternal##Type##Array);              \
+    return Convert<v8::internal::JSTypedArray, v8::Shared##Type##Array>(obj); \
+  }
+
+
 MAKE_TO_LOCAL(ToLocal, Context, Context)
 MAKE_TO_LOCAL(ToLocal, Object, Value)
 MAKE_TO_LOCAL(ToLocal, JSFunction, Function)
@@ -361,7 +403,11 @@ MAKE_TO_LOCAL(ToLocal, JSArrayBufferView, ArrayBufferView)
 MAKE_TO_LOCAL(ToLocal, JSDataView, DataView)
 MAKE_TO_LOCAL(ToLocal, JSTypedArray, TypedArray)
 
+MAKE_TO_LOCAL(ToLocalShared, JSArrayBuffer, SharedArrayBuffer)
+MAKE_TO_LOCAL(ToLocalShared, JSTypedArray, SharedTypedArray)
+
 TYPED_ARRAYS(MAKE_TO_LOCAL_TYPED_ARRAY)
+TYPED_ARRAYS(MAKE_TO_LOCAL_SHARED_TYPED_ARRAY)
 
 MAKE_TO_LOCAL(ToLocal, FunctionTemplateInfo, FunctionTemplate)
 MAKE_TO_LOCAL(ToLocal, ObjectTemplateInfo, ObjectTemplate)