| // Copyright 2015 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 <stdlib.h> |
| |
| #include "src/v8.h" |
| #include "test/cctest/cctest.h" |
| |
| #include "src/api.h" |
| #include "src/heap/heap.h" |
| #include "src/objects-inl.h" |
| #include "src/objects.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| void TestArrayBufferViewContents(LocalContext& env, bool should_use_buffer) { |
| v8::Local<v8::Object> obj_a = v8::Local<v8::Object>::Cast( |
| env->Global() |
| ->Get(v8::Isolate::GetCurrent()->GetCurrentContext(), v8_str("a")) |
| .ToLocalChecked()); |
| CHECK(obj_a->IsArrayBufferView()); |
| v8::Local<v8::ArrayBufferView> array_buffer_view = |
| v8::Local<v8::ArrayBufferView>::Cast(obj_a); |
| CHECK_EQ(array_buffer_view->HasBuffer(), should_use_buffer); |
| unsigned char contents[4] = {23, 23, 23, 23}; |
| CHECK_EQ(sizeof(contents), |
| array_buffer_view->CopyContents(contents, sizeof(contents))); |
| CHECK_EQ(array_buffer_view->HasBuffer(), should_use_buffer); |
| for (size_t i = 0; i < sizeof(contents); ++i) { |
| CHECK_EQ(i, contents[i]); |
| } |
| } |
| |
| |
| TEST(CopyContentsTypedArray) { |
| LocalContext env; |
| v8::HandleScope scope(env->GetIsolate()); |
| CompileRun( |
| "var a = new Uint8Array(4);" |
| "a[0] = 0;" |
| "a[1] = 1;" |
| "a[2] = 2;" |
| "a[3] = 3;"); |
| TestArrayBufferViewContents(env, false); |
| } |
| |
| |
| TEST(CopyContentsArray) { |
| LocalContext env; |
| v8::HandleScope scope(env->GetIsolate()); |
| CompileRun("var a = new Uint8Array([0, 1, 2, 3]);"); |
| TestArrayBufferViewContents(env, false); |
| } |
| |
| |
| TEST(CopyContentsView) { |
| LocalContext env; |
| v8::HandleScope scope(env->GetIsolate()); |
| CompileRun( |
| "var b = new ArrayBuffer(6);" |
| "var c = new Uint8Array(b);" |
| "c[0] = -1;" |
| "c[1] = -1;" |
| "c[2] = 0;" |
| "c[3] = 1;" |
| "c[4] = 2;" |
| "c[5] = 3;" |
| "var a = new DataView(b, 2);"); |
| TestArrayBufferViewContents(env, true); |
| } |
| |
| |
| TEST(AllocateNotExternal) { |
| LocalContext env; |
| v8::HandleScope scope(env->GetIsolate()); |
| void* memory = reinterpret_cast<Isolate*>(env->GetIsolate()) |
| ->array_buffer_allocator() |
| ->Allocate(1024); |
| v8::Local<v8::ArrayBuffer> buffer = |
| v8::ArrayBuffer::New(env->GetIsolate(), memory, 1024, |
| v8::ArrayBufferCreationMode::kInternalized); |
| CHECK(!buffer->IsExternal()); |
| CHECK_EQ(memory, buffer->GetContents().Data()); |
| } |
| |
| } // namespace internal |
| } // namespace v8 |