[builtins] Implement %TypedArray%.prototype.map in the CSA

src/runtime/runtime-typedarray.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/elements.h"
 #include "src/factory.h"
 #include "src/messages.h"
@@ skipping 159 matching lines @@
 
 }  // namespace
 
 RUNTIME_FUNCTION(Runtime_TypedArraySortFast) {
   HandleScope scope(isolate);
   DCHECK_EQ(1, args.length());
 
   CONVERT_ARG_HANDLE_CHECKED(Object, target_obj, 0);
 
   Handle<JSTypedArray> array;
-  const char* method = "%TypedArray%.prototype.sort";
   ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, array, JSTypedArray::Validate(isolate, target_obj, method));
+      isolate, array, JSTypedArray::Validate(isolate, target_obj));
 
   // This line can be removed when JSTypedArray::Validate throws
   // if array.[[ViewedArrayBuffer]] is neutered(v8:4648)
   if (V8_UNLIKELY(array->WasNeutered())) return *array;
 
   size_t length = array->length_value();
   if (length <= 1) return *array;
 
   Handle<FixedTypedArrayBase> elements(
       FixedTypedArrayBase::cast(array->elements()));
@@ skipping 60 matching lines @@
   DCHECK_EQ(1, args.length());
   if (!args[0]->IsJSTypedArray()) {
     return isolate->heap()->false_value();
   }
 
   Handle<JSTypedArray> obj(JSTypedArray::cast(args[0]));
   return isolate->heap()->ToBoolean(obj->GetBuffer()->is_shared() &&
                                     obj->type() == kExternalInt32Array);
 }
 
+RUNTIME_FUNCTION(Runtime_TypedArraySpeciesCreateByLength) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 2);
+  Handle<JSTypedArray> exemplar = args.at<JSTypedArray>(1);
+  Handle<Object> length = args.at(2);
+  int argc = 1;
+  ScopedVector<Handle<Object>> argv(argc);
+  argv[0] = length;
+  Handle<JSTypedArray> result_array;
+  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
+      isolate, result_array,
+      JSTypedArray::SpeciesCreate(isolate, exemplar, argc, argv.start()));
+  return *result_array;
+}
+
 }  // namespace internal
 }  // namespace v8