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3 // modification, are permitted provided that the following conditions are
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7 // notice, this list of conditions and the following disclaimer.
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32 #include "test/cctest/cctest.h"
34 using namespace v8::internal;
37 class HandleArray : public Malloced {
39 static const unsigned kArraySize = 200;
41 ~HandleArray() { Reset(); }
43 for (unsigned i = 0; i < kArraySize; i++) {
44 if (handles_[i].IsEmpty()) continue;
48 v8::Persistent<v8::Value> handles_[kArraySize];
50 DISALLOW_COPY_AND_ASSIGN(HandleArray);
54 // An aligned character array of size 1024.
55 class AlignedArray : public Malloced {
57 static const unsigned kArraySize = 1024/sizeof(uint64_t);
58 AlignedArray() { Reset(); }
61 for (unsigned i = 0; i < kArraySize; i++) {
67 T As() { return reinterpret_cast<T>(data_); }
70 uint64_t data_[kArraySize];
71 DISALLOW_COPY_AND_ASSIGN(AlignedArray);
75 class DescriptorTestHelper {
77 DescriptorTestHelper() :
78 isolate_(NULL), array_(new AlignedArray), handle_array_(new HandleArray) {
80 isolate_ = CcTest::isolate();
82 v8::Isolate* isolate_;
84 SmartPointer<AlignedArray> array_;
85 SmartPointer<HandleArray> handle_array_;
87 DISALLOW_COPY_AND_ASSIGN(DescriptorTestHelper);
91 static v8::Local<v8::ObjectTemplate> CreateConstructor(
92 v8::Handle<v8::Context> context,
93 const char* class_name,
95 const char* descriptor_name = NULL,
96 v8::Handle<v8::DeclaredAccessorDescriptor> descriptor =
97 v8::Handle<v8::DeclaredAccessorDescriptor>()) {
98 v8::Local<v8::FunctionTemplate> constructor =
99 v8::FunctionTemplate::New(context->GetIsolate());
100 v8::Local<v8::ObjectTemplate> obj_template = constructor->InstanceTemplate();
101 // Setup object template.
102 if (descriptor_name != NULL && !descriptor.IsEmpty()) {
103 bool added_accessor =
104 obj_template->SetDeclaredAccessor(v8_str(descriptor_name), descriptor);
105 CHECK(added_accessor);
107 obj_template->SetInternalFieldCount((internal_field+1)*2 + 7);
108 context->Global()->Set(v8_str(class_name), constructor->GetFunction());
113 static void VerifyRead(v8::Handle<v8::DeclaredAccessorDescriptor> descriptor,
115 void* internal_object,
116 v8::Handle<v8::Value> expected_value) {
117 LocalContext local_context;
118 v8::HandleScope scope(local_context->GetIsolate());
119 v8::Handle<v8::Context> context = local_context.local();
120 CreateConstructor(context, "Accessible", internal_field, "x", descriptor);
122 CompileRun("var accessible = new Accessible();");
123 v8::Local<v8::Object> obj = v8::Local<v8::Object>::Cast(
124 context->Global()->Get(v8_str("accessible")));
125 obj->SetAlignedPointerInInternalField(internal_field, internal_object);
127 added_accessor = obj->SetDeclaredAccessor(v8_str("y"), descriptor);
128 CHECK(added_accessor);
129 added_accessor = obj->SetDeclaredAccessor(v8_str("13"), descriptor);
130 CHECK(added_accessor);
131 // Test access from template getter.
132 v8::Local<v8::Value> value;
133 value = CompileRun("accessible.x;");
134 CHECK_EQ(expected_value, value);
135 value = CompileRun("accessible['x'];");
136 CHECK_EQ(expected_value, value);
137 // Test access from object getter.
138 value = CompileRun("accessible.y;");
139 CHECK_EQ(expected_value, value);
140 value = CompileRun("accessible['y'];");
141 CHECK_EQ(expected_value, value);
142 value = CompileRun("accessible[13];");
143 CHECK_EQ(expected_value, value);
144 value = CompileRun("accessible['13'];");
145 CHECK_EQ(expected_value, value);
149 static v8::Handle<v8::Value> Convert(int32_t value, v8::Isolate* isolate) {
150 return v8::Integer::New(isolate, value);
154 static v8::Handle<v8::Value> Convert(float value, v8::Isolate* isolate) {
155 return v8::Number::New(isolate, value);
159 static v8::Handle<v8::Value> Convert(double value, v8::Isolate* isolate) {
160 return v8::Number::New(isolate, value);
164 typedef v8::ObjectOperationDescriptor OOD;
167 static void TestPrimitiveValue(
169 v8::DeclaredAccessorDescriptorDataType data_type,
170 DescriptorTestHelper* helper) {
171 v8::HandleScope handle_scope(helper->isolate_);
173 int internal_field = 6;
174 v8::Handle<v8::DeclaredAccessorDescriptor> descriptor =
175 OOD::NewInternalFieldDereference(helper->isolate_, internal_field)
176 ->NewRawShift(helper->isolate_, static_cast<uint16_t>(index*sizeof(T)))
177 ->NewPrimitiveValue(helper->isolate_, data_type, 0);
178 v8::Handle<v8::Value> expected = Convert(value, helper->isolate_);
179 helper->array_->Reset();
180 helper->array_->As<T*>()[index] = value;
181 VerifyRead(descriptor, internal_field, helper->array_.get(), expected);
185 TEST(PrimitiveValueRead) {
186 DescriptorTestHelper helper;
187 TestPrimitiveValue<int32_t>(203, v8::kDescriptorInt32Type, &helper);
188 TestPrimitiveValue<float>(23.7f, v8::kDescriptorFloatType, &helper);
189 TestPrimitiveValue<double>(23.7, v8::kDescriptorDoubleType, &helper);
194 static void TestBitmaskCompare(T bitmask,
196 DescriptorTestHelper* helper) {
197 v8::HandleScope handle_scope(helper->isolate_);
199 int internal_field = 4;
200 v8::Handle<v8::RawOperationDescriptor> raw_descriptor =
201 OOD::NewInternalFieldDereference(helper->isolate_, internal_field)
202 ->NewRawShift(helper->isolate_, static_cast<uint16_t>(index*sizeof(T)));
203 v8::Handle<v8::DeclaredAccessorDescriptor> descriptor;
206 descriptor = raw_descriptor->NewBitmaskCompare8(
208 static_cast<uint8_t>(bitmask),
209 static_cast<uint8_t>(compare_value));
212 descriptor = raw_descriptor->NewBitmaskCompare16(
214 static_cast<uint16_t>(bitmask),
215 static_cast<uint16_t>(compare_value));
218 descriptor = raw_descriptor->NewBitmaskCompare32(
220 static_cast<uint32_t>(bitmask),
221 static_cast<uint32_t>(compare_value));
227 AlignedArray* array = helper->array_.get();
229 VerifyRead(descriptor, internal_field, array, v8::False(helper->isolate_));
230 array->As<T*>()[index] = compare_value;
231 VerifyRead(descriptor, internal_field, array, v8::True(helper->isolate_));
232 helper->array_->As<T*>()[index] = compare_value & bitmask;
233 VerifyRead(descriptor, internal_field, array, v8::True(helper->isolate_));
237 TEST(BitmaskCompareRead) {
238 DescriptorTestHelper helper;
239 TestBitmaskCompare<uint8_t>(0xf3, 0xa8, &helper);
240 TestBitmaskCompare<uint16_t>(0xfefe, 0x7d42, &helper);
241 TestBitmaskCompare<uint32_t>(0xfefeab18, 0x1234fdec, &helper);
245 TEST(PointerCompareRead) {
246 DescriptorTestHelper helper;
247 v8::HandleScope handle_scope(helper.isolate_);
249 int internal_field = 3;
250 void* ptr = helper.isolate_;
251 v8::Handle<v8::DeclaredAccessorDescriptor> descriptor =
252 OOD::NewInternalFieldDereference(helper.isolate_, internal_field)
253 ->NewRawShift(helper.isolate_, static_cast<uint16_t>(index*sizeof(ptr)))
254 ->NewPointerCompare(helper.isolate_, ptr);
255 AlignedArray* array = helper.array_.get();
256 VerifyRead(descriptor, internal_field, array, v8::False(helper.isolate_));
257 array->As<uintptr_t*>()[index] = reinterpret_cast<uintptr_t>(ptr);
258 VerifyRead(descriptor, internal_field, array, v8::True(helper.isolate_));
262 TEST(PointerDereferenceRead) {
263 DescriptorTestHelper helper;
264 v8::HandleScope handle_scope(helper.isolate_);
265 int first_index = 13;
266 int internal_field = 7;
267 int second_index = 11;
268 int pointed_to_index = 75;
269 uint16_t expected = 0x1425;
270 v8::Handle<v8::DeclaredAccessorDescriptor> descriptor =
271 OOD::NewInternalFieldDereference(helper.isolate_, internal_field)
272 ->NewRawShift(helper.isolate_, first_index*kPointerSize)
273 ->NewRawDereference(helper.isolate_)
274 ->NewRawShift(helper.isolate_,
275 static_cast<uint16_t>(second_index*sizeof(int16_t)))
276 ->NewPrimitiveValue(helper.isolate_, v8::kDescriptorInt16Type, 0);
277 AlignedArray* array = helper.array_.get();
278 array->As<uintptr_t**>()[first_index] =
279 &array->As<uintptr_t*>()[pointed_to_index];
280 VerifyRead(descriptor, internal_field, array,
281 v8::Integer::New(helper.isolate_, 0));
282 second_index += pointed_to_index*sizeof(uintptr_t)/sizeof(uint16_t);
283 array->As<uint16_t*>()[second_index] = expected;
284 VerifyRead(descriptor, internal_field, array,
285 v8::Integer::New(helper.isolate_, expected));
289 TEST(HandleDereferenceRead) {
290 DescriptorTestHelper helper;
291 v8::HandleScope handle_scope(helper.isolate_);
293 int internal_field = 0;
294 v8::Handle<v8::DeclaredAccessorDescriptor> descriptor =
295 OOD::NewInternalFieldDereference(helper.isolate_, internal_field)
296 ->NewRawShift(helper.isolate_, index*kPointerSize)
297 ->NewHandleDereference(helper.isolate_);
298 HandleArray* array = helper.handle_array_.get();
299 v8::Handle<v8::String> expected = v8_str("whatever");
300 array->handles_[index].Reset(helper.isolate_, expected);
301 VerifyRead(descriptor, internal_field, array, expected);