| // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| |
| #include <stdlib.h> |
| |
| #include "v8.h" |
| |
| #include "execution.h" |
| #include "factory.h" |
| #include "macro-assembler.h" |
| #include "global-handles.h" |
| #include "cctest.h" |
| |
| using namespace v8::internal; |
| |
| static v8::Persistent<v8::Context> env; |
| |
| static void InitializeVM() { |
| if (env.IsEmpty()) env = v8::Context::New(); |
| v8::HandleScope scope; |
| env->Enter(); |
| } |
| |
| |
| static void CheckMap(Map* map, int type, int instance_size) { |
| CHECK(map->IsHeapObject()); |
| #ifdef DEBUG |
| CHECK(Heap::Contains(map)); |
| #endif |
| CHECK_EQ(Heap::meta_map(), map->map()); |
| CHECK_EQ(type, map->instance_type()); |
| CHECK_EQ(instance_size, map->instance_size()); |
| } |
| |
| |
| TEST(HeapMaps) { |
| InitializeVM(); |
| CheckMap(Heap::meta_map(), MAP_TYPE, Map::kSize); |
| CheckMap(Heap::heap_number_map(), HEAP_NUMBER_TYPE, HeapNumber::kSize); |
| CheckMap(Heap::fixed_array_map(), FIXED_ARRAY_TYPE, FixedArray::kHeaderSize); |
| CheckMap(Heap::string_map(), STRING_TYPE, SeqTwoByteString::kAlignedSize); |
| } |
| |
| |
| static void CheckOddball(Object* obj, const char* string) { |
| CHECK(obj->IsOddball()); |
| bool exc; |
| Object* print_string = *Execution::ToString(Handle<Object>(obj), &exc); |
| CHECK(String::cast(print_string)->IsEqualTo(CStrVector(string))); |
| } |
| |
| |
| static void CheckSmi(int value, const char* string) { |
| bool exc; |
| Object* print_string = |
| *Execution::ToString(Handle<Object>(Smi::FromInt(value)), &exc); |
| CHECK(String::cast(print_string)->IsEqualTo(CStrVector(string))); |
| } |
| |
| |
| static void CheckNumber(double value, const char* string) { |
| Object* obj = Heap::NumberFromDouble(value); |
| CHECK(obj->IsNumber()); |
| bool exc; |
| Object* print_string = *Execution::ToString(Handle<Object>(obj), &exc); |
| CHECK(String::cast(print_string)->IsEqualTo(CStrVector(string))); |
| } |
| |
| |
| static void CheckFindCodeObject() { |
| // Test FindCodeObject |
| #define __ assm. |
| |
| Assembler assm(NULL, 0); |
| |
| __ nop(); // supported on all architectures |
| |
| CodeDesc desc; |
| assm.GetCode(&desc); |
| Object* code = Heap::CreateCode(desc, |
| NULL, |
| Code::ComputeFlags(Code::STUB), |
| Handle<Object>(Heap::undefined_value())); |
| CHECK(code->IsCode()); |
| |
| HeapObject* obj = HeapObject::cast(code); |
| Address obj_addr = obj->address(); |
| |
| for (int i = 0; i < obj->Size(); i += kPointerSize) { |
| Object* found = Heap::FindCodeObject(obj_addr + i); |
| CHECK_EQ(code, found); |
| } |
| |
| Object* copy = Heap::CreateCode(desc, |
| NULL, |
| Code::ComputeFlags(Code::STUB), |
| Handle<Object>(Heap::undefined_value())); |
| CHECK(copy->IsCode()); |
| HeapObject* obj_copy = HeapObject::cast(copy); |
| Object* not_right = Heap::FindCodeObject(obj_copy->address() + |
| obj_copy->Size() / 2); |
| CHECK(not_right != code); |
| } |
| |
| |
| TEST(HeapObjects) { |
| InitializeVM(); |
| |
| v8::HandleScope sc; |
| Object* value = Heap::NumberFromDouble(1.000123); |
| CHECK(value->IsHeapNumber()); |
| CHECK(value->IsNumber()); |
| CHECK_EQ(1.000123, value->Number()); |
| |
| value = Heap::NumberFromDouble(1.0); |
| CHECK(value->IsSmi()); |
| CHECK(value->IsNumber()); |
| CHECK_EQ(1.0, value->Number()); |
| |
| value = Heap::NumberFromInt32(1024); |
| CHECK(value->IsSmi()); |
| CHECK(value->IsNumber()); |
| CHECK_EQ(1024.0, value->Number()); |
| |
| value = Heap::NumberFromInt32(Smi::kMinValue); |
| CHECK(value->IsSmi()); |
| CHECK(value->IsNumber()); |
| CHECK_EQ(Smi::kMinValue, Smi::cast(value)->value()); |
| |
| value = Heap::NumberFromInt32(Smi::kMaxValue); |
| CHECK(value->IsSmi()); |
| CHECK(value->IsNumber()); |
| CHECK_EQ(Smi::kMaxValue, Smi::cast(value)->value()); |
| |
| #ifndef V8_TARGET_ARCH_X64 |
| // TODO(lrn): We need a NumberFromIntptr function in order to test this. |
| value = Heap::NumberFromInt32(Smi::kMinValue - 1); |
| CHECK(value->IsHeapNumber()); |
| CHECK(value->IsNumber()); |
| CHECK_EQ(static_cast<double>(Smi::kMinValue - 1), value->Number()); |
| #endif |
| |
| value = Heap::NumberFromUint32(static_cast<uint32_t>(Smi::kMaxValue) + 1); |
| CHECK(value->IsHeapNumber()); |
| CHECK(value->IsNumber()); |
| CHECK_EQ(static_cast<double>(static_cast<uint32_t>(Smi::kMaxValue) + 1), |
| value->Number()); |
| |
| // nan oddball checks |
| CHECK(Heap::nan_value()->IsNumber()); |
| CHECK(isnan(Heap::nan_value()->Number())); |
| |
| Handle<String> s = Factory::NewStringFromAscii(CStrVector("fisk hest ")); |
| CHECK(s->IsString()); |
| CHECK_EQ(10, s->length()); |
| |
| String* object_symbol = String::cast(Heap::Object_symbol()); |
| CHECK(Top::context()->global()->HasLocalProperty(object_symbol)); |
| |
| // Check ToString for oddballs |
| CheckOddball(Heap::true_value(), "true"); |
| CheckOddball(Heap::false_value(), "false"); |
| CheckOddball(Heap::null_value(), "null"); |
| CheckOddball(Heap::undefined_value(), "undefined"); |
| |
| // Check ToString for Smis |
| CheckSmi(0, "0"); |
| CheckSmi(42, "42"); |
| CheckSmi(-42, "-42"); |
| |
| // Check ToString for Numbers |
| CheckNumber(1.1, "1.1"); |
| |
| CheckFindCodeObject(); |
| } |
| |
| |
| TEST(Tagging) { |
| InitializeVM(); |
| int request = 24; |
| CHECK_EQ(request, static_cast<int>(OBJECT_POINTER_ALIGN(request))); |
| CHECK(Smi::FromInt(42)->IsSmi()); |
| CHECK(Failure::RetryAfterGC(request, NEW_SPACE)->IsFailure()); |
| CHECK_EQ(request, Failure::RetryAfterGC(request, NEW_SPACE)->requested()); |
| CHECK_EQ(NEW_SPACE, |
| Failure::RetryAfterGC(request, NEW_SPACE)->allocation_space()); |
| CHECK_EQ(OLD_POINTER_SPACE, |
| Failure::RetryAfterGC(request, |
| OLD_POINTER_SPACE)->allocation_space()); |
| CHECK(Failure::Exception()->IsFailure()); |
| CHECK(Smi::FromInt(Smi::kMinValue)->IsSmi()); |
| CHECK(Smi::FromInt(Smi::kMaxValue)->IsSmi()); |
| } |
| |
| |
| TEST(GarbageCollection) { |
| InitializeVM(); |
| |
| v8::HandleScope sc; |
| // Check GC. |
| int free_bytes = Heap::MaxObjectSizeInPagedSpace(); |
| CHECK(Heap::CollectGarbage(free_bytes, NEW_SPACE)); |
| |
| Handle<String> name = Factory::LookupAsciiSymbol("theFunction"); |
| Handle<String> prop_name = Factory::LookupAsciiSymbol("theSlot"); |
| Handle<String> prop_namex = Factory::LookupAsciiSymbol("theSlotx"); |
| Handle<String> obj_name = Factory::LookupAsciiSymbol("theObject"); |
| |
| { |
| v8::HandleScope inner_scope; |
| // Allocate a function and keep it in global object's property. |
| Handle<JSFunction> function = |
| Factory::NewFunction(name, Factory::undefined_value()); |
| Handle<Map> initial_map = |
| Factory::NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize); |
| function->set_initial_map(*initial_map); |
| Top::context()->global()->SetProperty(*name, *function, NONE); |
| // Allocate an object. Unrooted after leaving the scope. |
| Handle<JSObject> obj = Factory::NewJSObject(function); |
| obj->SetProperty(*prop_name, Smi::FromInt(23), NONE); |
| obj->SetProperty(*prop_namex, Smi::FromInt(24), NONE); |
| |
| CHECK_EQ(Smi::FromInt(23), obj->GetProperty(*prop_name)); |
| CHECK_EQ(Smi::FromInt(24), obj->GetProperty(*prop_namex)); |
| } |
| |
| CHECK(Heap::CollectGarbage(free_bytes, NEW_SPACE)); |
| |
| // Function should be alive. |
| CHECK(Top::context()->global()->HasLocalProperty(*name)); |
| // Check function is retained. |
| Object* func_value = Top::context()->global()->GetProperty(*name); |
| CHECK(func_value->IsJSFunction()); |
| Handle<JSFunction> function(JSFunction::cast(func_value)); |
| |
| { |
| HandleScope inner_scope; |
| // Allocate another object, make it reachable from global. |
| Handle<JSObject> obj = Factory::NewJSObject(function); |
| Top::context()->global()->SetProperty(*obj_name, *obj, NONE); |
| obj->SetProperty(*prop_name, Smi::FromInt(23), NONE); |
| } |
| |
| // After gc, it should survive. |
| CHECK(Heap::CollectGarbage(free_bytes, NEW_SPACE)); |
| |
| CHECK(Top::context()->global()->HasLocalProperty(*obj_name)); |
| CHECK(Top::context()->global()->GetProperty(*obj_name)->IsJSObject()); |
| JSObject* obj = |
| JSObject::cast(Top::context()->global()->GetProperty(*obj_name)); |
| CHECK_EQ(Smi::FromInt(23), obj->GetProperty(*prop_name)); |
| } |
| |
| |
| static void VerifyStringAllocation(const char* string) { |
| v8::HandleScope scope; |
| Handle<String> s = Factory::NewStringFromUtf8(CStrVector(string)); |
| CHECK_EQ(StrLength(string), s->length()); |
| for (int index = 0; index < s->length(); index++) { |
| CHECK_EQ(static_cast<uint16_t>(string[index]), s->Get(index)); |
| } |
| } |
| |
| |
| TEST(String) { |
| InitializeVM(); |
| |
| VerifyStringAllocation("a"); |
| VerifyStringAllocation("ab"); |
| VerifyStringAllocation("abc"); |
| VerifyStringAllocation("abcd"); |
| VerifyStringAllocation("fiskerdrengen er paa havet"); |
| } |
| |
| |
| TEST(LocalHandles) { |
| InitializeVM(); |
| |
| v8::HandleScope scope; |
| const char* name = "Kasper the spunky"; |
| Handle<String> string = Factory::NewStringFromAscii(CStrVector(name)); |
| CHECK_EQ(StrLength(name), string->length()); |
| } |
| |
| |
| TEST(GlobalHandles) { |
| InitializeVM(); |
| |
| Handle<Object> h1; |
| Handle<Object> h2; |
| Handle<Object> h3; |
| Handle<Object> h4; |
| |
| { |
| HandleScope scope; |
| |
| Handle<Object> i = Factory::NewStringFromAscii(CStrVector("fisk")); |
| Handle<Object> u = Factory::NewNumber(1.12344); |
| |
| h1 = GlobalHandles::Create(*i); |
| h2 = GlobalHandles::Create(*u); |
| h3 = GlobalHandles::Create(*i); |
| h4 = GlobalHandles::Create(*u); |
| } |
| |
| // after gc, it should survive |
| CHECK(Heap::CollectGarbage(0, NEW_SPACE)); |
| |
| CHECK((*h1)->IsString()); |
| CHECK((*h2)->IsHeapNumber()); |
| CHECK((*h3)->IsString()); |
| CHECK((*h4)->IsHeapNumber()); |
| |
| CHECK_EQ(*h3, *h1); |
| GlobalHandles::Destroy(h1.location()); |
| GlobalHandles::Destroy(h3.location()); |
| |
| CHECK_EQ(*h4, *h2); |
| GlobalHandles::Destroy(h2.location()); |
| GlobalHandles::Destroy(h4.location()); |
| } |
| |
| |
| static bool WeakPointerCleared = false; |
| |
| static void TestWeakGlobalHandleCallback(v8::Persistent<v8::Value> handle, |
| void* id) { |
| USE(handle); |
| if (1234 == reinterpret_cast<intptr_t>(id)) WeakPointerCleared = true; |
| } |
| |
| |
| TEST(WeakGlobalHandlesScavenge) { |
| InitializeVM(); |
| |
| WeakPointerCleared = false; |
| |
| Handle<Object> h1; |
| Handle<Object> h2; |
| |
| { |
| HandleScope scope; |
| |
| Handle<Object> i = Factory::NewStringFromAscii(CStrVector("fisk")); |
| Handle<Object> u = Factory::NewNumber(1.12344); |
| |
| h1 = GlobalHandles::Create(*i); |
| h2 = GlobalHandles::Create(*u); |
| } |
| |
| GlobalHandles::MakeWeak(h2.location(), |
| reinterpret_cast<void*>(1234), |
| &TestWeakGlobalHandleCallback); |
| |
| // Scavenge treats weak pointers as normal roots. |
| Heap::PerformScavenge(); |
| |
| CHECK((*h1)->IsString()); |
| CHECK((*h2)->IsHeapNumber()); |
| |
| CHECK(!WeakPointerCleared); |
| CHECK(!GlobalHandles::IsNearDeath(h2.location())); |
| CHECK(!GlobalHandles::IsNearDeath(h1.location())); |
| |
| GlobalHandles::Destroy(h1.location()); |
| GlobalHandles::Destroy(h2.location()); |
| } |
| |
| |
| TEST(WeakGlobalHandlesMark) { |
| InitializeVM(); |
| |
| WeakPointerCleared = false; |
| |
| Handle<Object> h1; |
| Handle<Object> h2; |
| |
| { |
| HandleScope scope; |
| |
| Handle<Object> i = Factory::NewStringFromAscii(CStrVector("fisk")); |
| Handle<Object> u = Factory::NewNumber(1.12344); |
| |
| h1 = GlobalHandles::Create(*i); |
| h2 = GlobalHandles::Create(*u); |
| } |
| |
| CHECK(Heap::CollectGarbage(0, OLD_POINTER_SPACE)); |
| CHECK(Heap::CollectGarbage(0, NEW_SPACE)); |
| // Make sure the object is promoted. |
| |
| GlobalHandles::MakeWeak(h2.location(), |
| reinterpret_cast<void*>(1234), |
| &TestWeakGlobalHandleCallback); |
| CHECK(!GlobalHandles::IsNearDeath(h1.location())); |
| CHECK(!GlobalHandles::IsNearDeath(h2.location())); |
| |
| CHECK(Heap::CollectGarbage(0, OLD_POINTER_SPACE)); |
| |
| CHECK((*h1)->IsString()); |
| |
| CHECK(WeakPointerCleared); |
| CHECK(!GlobalHandles::IsNearDeath(h1.location())); |
| CHECK(GlobalHandles::IsNearDeath(h2.location())); |
| |
| GlobalHandles::Destroy(h1.location()); |
| GlobalHandles::Destroy(h2.location()); |
| } |
| |
| static void TestDeleteWeakGlobalHandleCallback( |
| v8::Persistent<v8::Value> handle, |
| void* id) { |
| if (1234 == reinterpret_cast<intptr_t>(id)) WeakPointerCleared = true; |
| handle.Dispose(); |
| } |
| |
| TEST(DeleteWeakGlobalHandle) { |
| InitializeVM(); |
| |
| WeakPointerCleared = false; |
| |
| Handle<Object> h; |
| |
| { |
| HandleScope scope; |
| |
| Handle<Object> i = Factory::NewStringFromAscii(CStrVector("fisk")); |
| h = GlobalHandles::Create(*i); |
| } |
| |
| GlobalHandles::MakeWeak(h.location(), |
| reinterpret_cast<void*>(1234), |
| &TestDeleteWeakGlobalHandleCallback); |
| |
| // Scanvenge does not recognize weak reference. |
| Heap::PerformScavenge(); |
| |
| CHECK(!WeakPointerCleared); |
| |
| // Mark-compact treats weak reference properly. |
| CHECK(Heap::CollectGarbage(0, OLD_POINTER_SPACE)); |
| |
| CHECK(WeakPointerCleared); |
| } |
| |
| static const char* not_so_random_string_table[] = { |
| "abstract", |
| "boolean", |
| "break", |
| "byte", |
| "case", |
| "catch", |
| "char", |
| "class", |
| "const", |
| "continue", |
| "debugger", |
| "default", |
| "delete", |
| "do", |
| "double", |
| "else", |
| "enum", |
| "export", |
| "extends", |
| "false", |
| "final", |
| "finally", |
| "float", |
| "for", |
| "function", |
| "goto", |
| "if", |
| "implements", |
| "import", |
| "in", |
| "instanceof", |
| "int", |
| "interface", |
| "long", |
| "native", |
| "new", |
| "null", |
| "package", |
| "private", |
| "protected", |
| "public", |
| "return", |
| "short", |
| "static", |
| "super", |
| "switch", |
| "synchronized", |
| "this", |
| "throw", |
| "throws", |
| "transient", |
| "true", |
| "try", |
| "typeof", |
| "var", |
| "void", |
| "volatile", |
| "while", |
| "with", |
| 0 |
| }; |
| |
| |
| static void CheckSymbols(const char** strings) { |
| for (const char* string = *strings; *strings != 0; string = *strings++) { |
| Object* a = Heap::LookupAsciiSymbol(string); |
| // LookupAsciiSymbol may return a failure if a GC is needed. |
| if (a->IsFailure()) continue; |
| CHECK(a->IsSymbol()); |
| Object* b = Heap::LookupAsciiSymbol(string); |
| if (b->IsFailure()) continue; |
| CHECK_EQ(b, a); |
| CHECK(String::cast(b)->IsEqualTo(CStrVector(string))); |
| } |
| } |
| |
| |
| TEST(SymbolTable) { |
| InitializeVM(); |
| |
| CheckSymbols(not_so_random_string_table); |
| CheckSymbols(not_so_random_string_table); |
| } |
| |
| |
| TEST(FunctionAllocation) { |
| InitializeVM(); |
| |
| v8::HandleScope sc; |
| Handle<String> name = Factory::LookupAsciiSymbol("theFunction"); |
| Handle<JSFunction> function = |
| Factory::NewFunction(name, Factory::undefined_value()); |
| Handle<Map> initial_map = |
| Factory::NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize); |
| function->set_initial_map(*initial_map); |
| |
| Handle<String> prop_name = Factory::LookupAsciiSymbol("theSlot"); |
| Handle<JSObject> obj = Factory::NewJSObject(function); |
| obj->SetProperty(*prop_name, Smi::FromInt(23), NONE); |
| CHECK_EQ(Smi::FromInt(23), obj->GetProperty(*prop_name)); |
| // Check that we can add properties to function objects. |
| function->SetProperty(*prop_name, Smi::FromInt(24), NONE); |
| CHECK_EQ(Smi::FromInt(24), function->GetProperty(*prop_name)); |
| } |
| |
| |
| TEST(ObjectProperties) { |
| InitializeVM(); |
| |
| v8::HandleScope sc; |
| String* object_symbol = String::cast(Heap::Object_symbol()); |
| JSFunction* object_function = |
| JSFunction::cast(Top::context()->global()->GetProperty(object_symbol)); |
| Handle<JSFunction> constructor(object_function); |
| Handle<JSObject> obj = Factory::NewJSObject(constructor); |
| Handle<String> first = Factory::LookupAsciiSymbol("first"); |
| Handle<String> second = Factory::LookupAsciiSymbol("second"); |
| |
| // check for empty |
| CHECK(!obj->HasLocalProperty(*first)); |
| |
| // add first |
| obj->SetProperty(*first, Smi::FromInt(1), NONE); |
| CHECK(obj->HasLocalProperty(*first)); |
| |
| // delete first |
| CHECK(obj->DeleteProperty(*first, JSObject::NORMAL_DELETION)); |
| CHECK(!obj->HasLocalProperty(*first)); |
| |
| // add first and then second |
| obj->SetProperty(*first, Smi::FromInt(1), NONE); |
| obj->SetProperty(*second, Smi::FromInt(2), NONE); |
| CHECK(obj->HasLocalProperty(*first)); |
| CHECK(obj->HasLocalProperty(*second)); |
| |
| // delete first and then second |
| CHECK(obj->DeleteProperty(*first, JSObject::NORMAL_DELETION)); |
| CHECK(obj->HasLocalProperty(*second)); |
| CHECK(obj->DeleteProperty(*second, JSObject::NORMAL_DELETION)); |
| CHECK(!obj->HasLocalProperty(*first)); |
| CHECK(!obj->HasLocalProperty(*second)); |
| |
| // add first and then second |
| obj->SetProperty(*first, Smi::FromInt(1), NONE); |
| obj->SetProperty(*second, Smi::FromInt(2), NONE); |
| CHECK(obj->HasLocalProperty(*first)); |
| CHECK(obj->HasLocalProperty(*second)); |
| |
| // delete second and then first |
| CHECK(obj->DeleteProperty(*second, JSObject::NORMAL_DELETION)); |
| CHECK(obj->HasLocalProperty(*first)); |
| CHECK(obj->DeleteProperty(*first, JSObject::NORMAL_DELETION)); |
| CHECK(!obj->HasLocalProperty(*first)); |
| CHECK(!obj->HasLocalProperty(*second)); |
| |
| // check string and symbol match |
| static const char* string1 = "fisk"; |
| Handle<String> s1 = Factory::NewStringFromAscii(CStrVector(string1)); |
| obj->SetProperty(*s1, Smi::FromInt(1), NONE); |
| Handle<String> s1_symbol = Factory::LookupAsciiSymbol(string1); |
| CHECK(obj->HasLocalProperty(*s1_symbol)); |
| |
| // check symbol and string match |
| static const char* string2 = "fugl"; |
| Handle<String> s2_symbol = Factory::LookupAsciiSymbol(string2); |
| obj->SetProperty(*s2_symbol, Smi::FromInt(1), NONE); |
| Handle<String> s2 = Factory::NewStringFromAscii(CStrVector(string2)); |
| CHECK(obj->HasLocalProperty(*s2)); |
| } |
| |
| |
| TEST(JSObjectMaps) { |
| InitializeVM(); |
| |
| v8::HandleScope sc; |
| Handle<String> name = Factory::LookupAsciiSymbol("theFunction"); |
| Handle<JSFunction> function = |
| Factory::NewFunction(name, Factory::undefined_value()); |
| Handle<Map> initial_map = |
| Factory::NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize); |
| function->set_initial_map(*initial_map); |
| |
| Handle<String> prop_name = Factory::LookupAsciiSymbol("theSlot"); |
| Handle<JSObject> obj = Factory::NewJSObject(function); |
| |
| // Set a propery |
| obj->SetProperty(*prop_name, Smi::FromInt(23), NONE); |
| CHECK_EQ(Smi::FromInt(23), obj->GetProperty(*prop_name)); |
| |
| // Check the map has changed |
| CHECK(*initial_map != obj->map()); |
| } |
| |
| |
| TEST(JSArray) { |
| InitializeVM(); |
| |
| v8::HandleScope sc; |
| Handle<String> name = Factory::LookupAsciiSymbol("Array"); |
| Handle<JSFunction> function = Handle<JSFunction>( |
| JSFunction::cast(Top::context()->global()->GetProperty(*name))); |
| |
| // Allocate the object. |
| Handle<JSObject> object = Factory::NewJSObject(function); |
| Handle<JSArray> array = Handle<JSArray>::cast(object); |
| array->Initialize(0); |
| |
| // Set array length to 0. |
| array->SetElementsLength(Smi::FromInt(0)); |
| CHECK_EQ(Smi::FromInt(0), array->length()); |
| CHECK(array->HasFastElements()); // Must be in fast mode. |
| |
| // array[length] = name. |
| array->SetElement(0, *name); |
| CHECK_EQ(Smi::FromInt(1), array->length()); |
| CHECK_EQ(array->GetElement(0), *name); |
| |
| // Set array length with larger than smi value. |
| Handle<Object> length = |
| Factory::NewNumberFromUint(static_cast<uint32_t>(Smi::kMaxValue) + 1); |
| array->SetElementsLength(*length); |
| |
| uint32_t int_length = 0; |
| CHECK(length->ToArrayIndex(&int_length)); |
| CHECK_EQ(*length, array->length()); |
| CHECK(array->HasDictionaryElements()); // Must be in slow mode. |
| |
| // array[length] = name. |
| array->SetElement(int_length, *name); |
| uint32_t new_int_length = 0; |
| CHECK(array->length()->ToArrayIndex(&new_int_length)); |
| CHECK_EQ(static_cast<double>(int_length), new_int_length - 1); |
| CHECK_EQ(array->GetElement(int_length), *name); |
| CHECK_EQ(array->GetElement(0), *name); |
| } |
| |
| |
| TEST(JSObjectCopy) { |
| InitializeVM(); |
| |
| v8::HandleScope sc; |
| String* object_symbol = String::cast(Heap::Object_symbol()); |
| JSFunction* object_function = |
| JSFunction::cast(Top::context()->global()->GetProperty(object_symbol)); |
| Handle<JSFunction> constructor(object_function); |
| Handle<JSObject> obj = Factory::NewJSObject(constructor); |
| Handle<String> first = Factory::LookupAsciiSymbol("first"); |
| Handle<String> second = Factory::LookupAsciiSymbol("second"); |
| |
| obj->SetProperty(*first, Smi::FromInt(1), NONE); |
| obj->SetProperty(*second, Smi::FromInt(2), NONE); |
| |
| obj->SetElement(0, *first); |
| obj->SetElement(1, *second); |
| |
| // Make the clone. |
| Handle<JSObject> clone = Copy(obj); |
| CHECK(!clone.is_identical_to(obj)); |
| |
| CHECK_EQ(obj->GetElement(0), clone->GetElement(0)); |
| CHECK_EQ(obj->GetElement(1), clone->GetElement(1)); |
| |
| CHECK_EQ(obj->GetProperty(*first), clone->GetProperty(*first)); |
| CHECK_EQ(obj->GetProperty(*second), clone->GetProperty(*second)); |
| |
| // Flip the values. |
| clone->SetProperty(*first, Smi::FromInt(2), NONE); |
| clone->SetProperty(*second, Smi::FromInt(1), NONE); |
| |
| clone->SetElement(0, *second); |
| clone->SetElement(1, *first); |
| |
| CHECK_EQ(obj->GetElement(1), clone->GetElement(0)); |
| CHECK_EQ(obj->GetElement(0), clone->GetElement(1)); |
| |
| CHECK_EQ(obj->GetProperty(*second), clone->GetProperty(*first)); |
| CHECK_EQ(obj->GetProperty(*first), clone->GetProperty(*second)); |
| } |
| |
| |
| TEST(StringAllocation) { |
| InitializeVM(); |
| |
| |
| const unsigned char chars[] = { 0xe5, 0xa4, 0xa7 }; |
| for (int length = 0; length < 100; length++) { |
| v8::HandleScope scope; |
| char* non_ascii = NewArray<char>(3 * length + 1); |
| char* ascii = NewArray<char>(length + 1); |
| non_ascii[3 * length] = 0; |
| ascii[length] = 0; |
| for (int i = 0; i < length; i++) { |
| ascii[i] = 'a'; |
| non_ascii[3 * i] = chars[0]; |
| non_ascii[3 * i + 1] = chars[1]; |
| non_ascii[3 * i + 2] = chars[2]; |
| } |
| Handle<String> non_ascii_sym = |
| Factory::LookupSymbol(Vector<const char>(non_ascii, 3 * length)); |
| CHECK_EQ(length, non_ascii_sym->length()); |
| Handle<String> ascii_sym = |
| Factory::LookupSymbol(Vector<const char>(ascii, length)); |
| CHECK_EQ(length, ascii_sym->length()); |
| Handle<String> non_ascii_str = |
| Factory::NewStringFromUtf8(Vector<const char>(non_ascii, 3 * length)); |
| non_ascii_str->Hash(); |
| CHECK_EQ(length, non_ascii_str->length()); |
| Handle<String> ascii_str = |
| Factory::NewStringFromUtf8(Vector<const char>(ascii, length)); |
| ascii_str->Hash(); |
| CHECK_EQ(length, ascii_str->length()); |
| DeleteArray(non_ascii); |
| DeleteArray(ascii); |
| } |
| } |
| |
| |
| static int ObjectsFoundInHeap(Handle<Object> objs[], int size) { |
| // Count the number of objects found in the heap. |
| int found_count = 0; |
| HeapIterator iterator; |
| for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) { |
| for (int i = 0; i < size; i++) { |
| if (*objs[i] == obj) { |
| found_count++; |
| } |
| } |
| } |
| return found_count; |
| } |
| |
| |
| TEST(Iteration) { |
| InitializeVM(); |
| v8::HandleScope scope; |
| |
| // Array of objects to scan haep for. |
| const int objs_count = 6; |
| Handle<Object> objs[objs_count]; |
| int next_objs_index = 0; |
| |
| // Allocate a JS array to OLD_POINTER_SPACE and NEW_SPACE |
| objs[next_objs_index++] = Factory::NewJSArray(10); |
| objs[next_objs_index++] = Factory::NewJSArray(10, TENURED); |
| |
| // Allocate a small string to OLD_DATA_SPACE and NEW_SPACE |
| objs[next_objs_index++] = |
| Factory::NewStringFromAscii(CStrVector("abcdefghij")); |
| objs[next_objs_index++] = |
| Factory::NewStringFromAscii(CStrVector("abcdefghij"), TENURED); |
| |
| // Allocate a large string (for large object space). |
| int large_size = Heap::MaxObjectSizeInPagedSpace() + 1; |
| char* str = new char[large_size]; |
| for (int i = 0; i < large_size - 1; ++i) str[i] = 'a'; |
| str[large_size - 1] = '\0'; |
| objs[next_objs_index++] = |
| Factory::NewStringFromAscii(CStrVector(str), TENURED); |
| delete[] str; |
| |
| // Add a Map object to look for. |
| objs[next_objs_index++] = Handle<Map>(HeapObject::cast(*objs[0])->map()); |
| |
| CHECK_EQ(objs_count, next_objs_index); |
| CHECK_EQ(objs_count, ObjectsFoundInHeap(objs, objs_count)); |
| } |
| |
| |
| TEST(LargeObjectSpaceContains) { |
| InitializeVM(); |
| |
| int free_bytes = Heap::MaxObjectSizeInPagedSpace(); |
| CHECK(Heap::CollectGarbage(free_bytes, NEW_SPACE)); |
| |
| Address current_top = Heap::new_space()->top(); |
| Page* page = Page::FromAddress(current_top); |
| Address current_page = page->address(); |
| Address next_page = current_page + Page::kPageSize; |
| int bytes_to_page = static_cast<int>(next_page - current_top); |
| if (bytes_to_page <= FixedArray::kHeaderSize) { |
| // Alas, need to cross another page to be able to |
| // put desired value. |
| next_page += Page::kPageSize; |
| bytes_to_page = static_cast<int>(next_page - current_top); |
| } |
| CHECK(bytes_to_page > FixedArray::kHeaderSize); |
| |
| intptr_t* flags_ptr = &Page::FromAddress(next_page)->flags_; |
| Address flags_addr = reinterpret_cast<Address>(flags_ptr); |
| |
| int bytes_to_allocate = |
| static_cast<int>(flags_addr - current_top) + kPointerSize; |
| |
| int n_elements = (bytes_to_allocate - FixedArray::kHeaderSize) / |
| kPointerSize; |
| CHECK_EQ(bytes_to_allocate, FixedArray::SizeFor(n_elements)); |
| FixedArray* array = FixedArray::cast( |
| Heap::AllocateFixedArray(n_elements)); |
| |
| int index = n_elements - 1; |
| CHECK_EQ(flags_ptr, |
| HeapObject::RawField(array, FixedArray::OffsetOfElementAt(index))); |
| array->set(index, Smi::FromInt(0)); |
| // This chould have turned next page into LargeObjectPage: |
| // CHECK(Page::FromAddress(next_page)->IsLargeObjectPage()); |
| |
| HeapObject* addr = HeapObject::FromAddress(next_page + 2 * kPointerSize); |
| CHECK(Heap::new_space()->Contains(addr)); |
| CHECK(!Heap::lo_space()->Contains(addr)); |
| } |
| |
| |
| TEST(EmptyHandleEscapeFrom) { |
| InitializeVM(); |
| |
| v8::HandleScope scope; |
| Handle<JSObject> runaway; |
| |
| { |
| v8::HandleScope nested; |
| Handle<JSObject> empty; |
| runaway = empty.EscapeFrom(&nested); |
| } |
| |
| CHECK(runaway.is_null()); |
| } |
| |
| |
| static int LenFromSize(int size) { |
| return (size - FixedArray::kHeaderSize) / kPointerSize; |
| } |
| |
| |
| TEST(Regression39128) { |
| // Test case for crbug.com/39128. |
| InitializeVM(); |
| |
| // Increase the chance of 'bump-the-pointer' allocation in old space. |
| bool force_compaction = true; |
| Heap::CollectAllGarbage(force_compaction); |
| |
| v8::HandleScope scope; |
| |
| // The plan: create JSObject which references objects in new space. |
| // Then clone this object (forcing it to go into old space) and check |
| // that region dirty marks are updated correctly. |
| |
| // Step 1: prepare a map for the object. We add 1 inobject property to it. |
| Handle<JSFunction> object_ctor(Top::global_context()->object_function()); |
| CHECK(object_ctor->has_initial_map()); |
| Handle<Map> object_map(object_ctor->initial_map()); |
| // Create a map with single inobject property. |
| Handle<Map> my_map = Factory::CopyMap(object_map, 1); |
| int n_properties = my_map->inobject_properties(); |
| CHECK_GT(n_properties, 0); |
| |
| int object_size = my_map->instance_size(); |
| |
| // Step 2: allocate a lot of objects so to almost fill new space: we need |
| // just enough room to allocate JSObject and thus fill the newspace. |
| |
| int allocation_amount = Min(FixedArray::kMaxSize, |
| Heap::MaxObjectSizeInNewSpace()); |
| int allocation_len = LenFromSize(allocation_amount); |
| NewSpace* new_space = Heap::new_space(); |
| Address* top_addr = new_space->allocation_top_address(); |
| Address* limit_addr = new_space->allocation_limit_address(); |
| while ((*limit_addr - *top_addr) > allocation_amount) { |
| CHECK(!Heap::always_allocate()); |
| Object* array = Heap::AllocateFixedArray(allocation_len); |
| CHECK(!array->IsFailure()); |
| CHECK(new_space->Contains(array)); |
| } |
| |
| // Step 3: now allocate fixed array and JSObject to fill the whole new space. |
| int to_fill = static_cast<int>(*limit_addr - *top_addr - object_size); |
| int fixed_array_len = LenFromSize(to_fill); |
| CHECK(fixed_array_len < FixedArray::kMaxLength); |
| |
| CHECK(!Heap::always_allocate()); |
| Object* array = Heap::AllocateFixedArray(fixed_array_len); |
| CHECK(!array->IsFailure()); |
| CHECK(new_space->Contains(array)); |
| |
| Object* object = Heap::AllocateJSObjectFromMap(*my_map); |
| CHECK(!object->IsFailure()); |
| CHECK(new_space->Contains(object)); |
| JSObject* jsobject = JSObject::cast(object); |
| CHECK_EQ(0, FixedArray::cast(jsobject->elements())->length()); |
| CHECK_EQ(0, jsobject->properties()->length()); |
| // Create a reference to object in new space in jsobject. |
| jsobject->FastPropertyAtPut(-1, array); |
| |
| CHECK_EQ(0, static_cast<int>(*limit_addr - *top_addr)); |
| |
| // Step 4: clone jsobject, but force always allocate first to create a clone |
| // in old pointer space. |
| Address old_pointer_space_top = Heap::old_pointer_space()->top(); |
| AlwaysAllocateScope aa_scope; |
| Object* clone_obj = Heap::CopyJSObject(jsobject); |
| CHECK(!object->IsFailure()); |
| JSObject* clone = JSObject::cast(clone_obj); |
| if (clone->address() != old_pointer_space_top) { |
| // Alas, got allocated from free list, we cannot do checks. |
| return; |
| } |
| CHECK(Heap::old_pointer_space()->Contains(clone->address())); |
| |
| // Step 5: verify validity of region dirty marks. |
| Address clone_addr = clone->address(); |
| Page* page = Page::FromAddress(clone_addr); |
| // Check that region covering inobject property 1 is marked dirty. |
| CHECK(page->IsRegionDirty(clone_addr + (object_size - kPointerSize))); |
| } |
| |
| TEST(TestCodeFlushing) { |
| i::FLAG_allow_natives_syntax = true; |
| // If we do not flush code this test is invalid. |
| if (!FLAG_flush_code) return; |
| InitializeVM(); |
| v8::HandleScope scope; |
| const char* source = "function foo() {" |
| " var x = 42;" |
| " var y = 42;" |
| " var z = x + y;" |
| "};" |
| "foo()"; |
| Handle<String> foo_name = Factory::LookupAsciiSymbol("foo"); |
| |
| // This compile will add the code to the compilation cache. |
| CompileRun(source); |
| |
| // Check function is compiled. |
| Object* func_value = Top::context()->global()->GetProperty(*foo_name); |
| CHECK(func_value->IsJSFunction()); |
| Handle<JSFunction> function(JSFunction::cast(func_value)); |
| CHECK(function->shared()->is_compiled()); |
| |
| Heap::CollectAllGarbage(true); |
| Heap::CollectAllGarbage(true); |
| |
| // foo should still be in the compilation cache and therefore not |
| // have been removed. |
| CHECK(function->shared()->is_compiled()); |
| Heap::CollectAllGarbage(true); |
| Heap::CollectAllGarbage(true); |
| Heap::CollectAllGarbage(true); |
| Heap::CollectAllGarbage(true); |
| |
| // foo should no longer be in the compilation cache |
| CHECK(!function->shared()->is_compiled()); |
| // Call foo to get it recompiled. |
| CompileRun("foo()"); |
| CHECK(function->shared()->is_compiled()); |
| } |