diff --git a/common.gypi b/common.gypi index e3758393c0b654..fde75cb2b512ad 100644 --- a/common.gypi +++ b/common.gypi @@ -30,7 +30,7 @@ # Reset this number to 0 on major V8 upgrades. # Increment by one for each non-official patch applied to deps/v8. - 'v8_embedder_string': '-node.9', + 'v8_embedder_string': '-node.10', # Enable disassembler for `--print-code` v8 options 'v8_enable_disassembler': 1, diff --git a/deps/v8/include/v8.h b/deps/v8/include/v8.h index c48025871aa85b..e1951ec270597d 100644 --- a/deps/v8/include/v8.h +++ b/deps/v8/include/v8.h @@ -3779,6 +3779,12 @@ class V8_EXPORT Array : public Object { */ static Local New(Isolate* isolate, int length = 0); + /** + * Creates a JavaScript array out of a Local array in C++ + * with a known length. + */ + static Local New(Isolate* isolate, Local* elements, + size_t length); V8_INLINE static Array* Cast(Value* obj); private: Array(); diff --git a/deps/v8/src/api.cc b/deps/v8/src/api.cc index 54d1ba1afc7099..c1afe8d93b9d0d 100644 --- a/deps/v8/src/api.cc +++ b/deps/v8/src/api.cc @@ -6981,6 +6981,23 @@ Local v8::Array::New(Isolate* isolate, int length) { return Utils::ToLocal(obj); } +Local v8::Array::New(Isolate* isolate, Local* elements, + size_t length) { + i::Isolate* i_isolate = reinterpret_cast(isolate); + i::Factory* factory = i_isolate->factory(); + LOG_API(i_isolate, Array, New); + ENTER_V8_NO_SCRIPT_NO_EXCEPTION(i_isolate); + int len = static_cast(length); + + i::Handle result = factory->NewFixedArray(len); + for (int i = 0; i < len; i++) { + i::Handle element = Utils::OpenHandle(*elements[i]); + result->set(i, *element); + } + + return Utils::ToLocal( + factory->NewJSArrayWithElements(result, i::PACKED_ELEMENTS, len)); +} uint32_t v8::Array::Length() const { i::Handle obj = Utils::OpenHandle(this); diff --git a/deps/v8/test/cctest/test-api.cc b/deps/v8/test/cctest/test-api.cc index bf5aba2df66947..f7365c8f31a8c8 100644 --- a/deps/v8/test/cctest/test-api.cc +++ b/deps/v8/test/cctest/test-api.cc @@ -5247,6 +5247,22 @@ THREADED_TEST(Array) { CHECK_EQ(27u, array->Length()); array = v8::Array::New(context->GetIsolate(), -27); CHECK_EQ(0u, array->Length()); + + std::vector> vector = {v8_num(1), v8_num(2), v8_num(3)}; + array = v8::Array::New(context->GetIsolate(), vector.data(), vector.size()); + CHECK_EQ(vector.size(), array->Length()); + CHECK_EQ(1, arr->Get(context.local(), 0) + .ToLocalChecked() + ->Int32Value(context.local()) + .FromJust()); + CHECK_EQ(2, arr->Get(context.local(), 1) + .ToLocalChecked() + ->Int32Value(context.local()) + .FromJust()); + CHECK_EQ(3, arr->Get(context.local(), 2) + .ToLocalChecked() + ->Int32Value(context.local()) + .FromJust()); }