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1000 lines
29 KiB
1000 lines
29 KiB
// Copyright 2006-2008 the V8 project authors. All rights reserved.
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#include <stdlib.h>
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#include "v8.h"
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#include "execution.h"
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#include "factory.h"
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#include "macro-assembler.h"
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#include "global-handles.h"
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#include "cctest.h"
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using namespace v8::internal;
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static v8::Persistent<v8::Context> env;
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static void InitializeVM() {
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if (env.IsEmpty()) env = v8::Context::New();
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v8::HandleScope scope;
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env->Enter();
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}
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static void CheckMap(Map* map, int type, int instance_size) {
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CHECK(map->IsHeapObject());
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#ifdef DEBUG
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CHECK(Heap::Contains(map));
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#endif
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CHECK_EQ(Heap::meta_map(), map->map());
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CHECK_EQ(type, map->instance_type());
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CHECK_EQ(instance_size, map->instance_size());
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}
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TEST(HeapMaps) {
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InitializeVM();
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CheckMap(Heap::meta_map(), MAP_TYPE, Map::kSize);
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CheckMap(Heap::heap_number_map(), HEAP_NUMBER_TYPE, HeapNumber::kSize);
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CheckMap(Heap::fixed_array_map(), FIXED_ARRAY_TYPE, FixedArray::kHeaderSize);
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CheckMap(Heap::string_map(), STRING_TYPE, SeqTwoByteString::kAlignedSize);
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}
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static void CheckOddball(Object* obj, const char* string) {
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CHECK(obj->IsOddball());
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bool exc;
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Object* print_string = *Execution::ToString(Handle<Object>(obj), &exc);
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CHECK(String::cast(print_string)->IsEqualTo(CStrVector(string)));
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}
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static void CheckSmi(int value, const char* string) {
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bool exc;
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Object* print_string =
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*Execution::ToString(Handle<Object>(Smi::FromInt(value)), &exc);
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CHECK(String::cast(print_string)->IsEqualTo(CStrVector(string)));
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}
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static void CheckNumber(double value, const char* string) {
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Object* obj = Heap::NumberFromDouble(value);
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CHECK(obj->IsNumber());
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bool exc;
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Object* print_string = *Execution::ToString(Handle<Object>(obj), &exc);
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CHECK(String::cast(print_string)->IsEqualTo(CStrVector(string)));
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}
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static void CheckFindCodeObject() {
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// Test FindCodeObject
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#define __ assm.
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Assembler assm(NULL, 0);
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__ nop(); // supported on all architectures
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CodeDesc desc;
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assm.GetCode(&desc);
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Object* code = Heap::CreateCode(desc,
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NULL,
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Code::ComputeFlags(Code::STUB),
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Handle<Object>(Heap::undefined_value()));
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CHECK(code->IsCode());
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HeapObject* obj = HeapObject::cast(code);
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Address obj_addr = obj->address();
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for (int i = 0; i < obj->Size(); i += kPointerSize) {
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Object* found = Heap::FindCodeObject(obj_addr + i);
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CHECK_EQ(code, found);
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}
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Object* copy = Heap::CreateCode(desc,
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NULL,
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Code::ComputeFlags(Code::STUB),
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Handle<Object>(Heap::undefined_value()));
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CHECK(copy->IsCode());
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HeapObject* obj_copy = HeapObject::cast(copy);
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Object* not_right = Heap::FindCodeObject(obj_copy->address() +
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obj_copy->Size() / 2);
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CHECK(not_right != code);
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}
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TEST(HeapObjects) {
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InitializeVM();
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v8::HandleScope sc;
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Object* value = Heap::NumberFromDouble(1.000123);
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CHECK(value->IsHeapNumber());
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CHECK(value->IsNumber());
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CHECK_EQ(1.000123, value->Number());
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value = Heap::NumberFromDouble(1.0);
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CHECK(value->IsSmi());
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CHECK(value->IsNumber());
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CHECK_EQ(1.0, value->Number());
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value = Heap::NumberFromInt32(1024);
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CHECK(value->IsSmi());
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CHECK(value->IsNumber());
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CHECK_EQ(1024.0, value->Number());
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value = Heap::NumberFromInt32(Smi::kMinValue);
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CHECK(value->IsSmi());
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CHECK(value->IsNumber());
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CHECK_EQ(Smi::kMinValue, Smi::cast(value)->value());
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value = Heap::NumberFromInt32(Smi::kMaxValue);
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CHECK(value->IsSmi());
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CHECK(value->IsNumber());
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CHECK_EQ(Smi::kMaxValue, Smi::cast(value)->value());
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#ifndef V8_TARGET_ARCH_X64
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// TODO(lrn): We need a NumberFromIntptr function in order to test this.
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value = Heap::NumberFromInt32(Smi::kMinValue - 1);
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CHECK(value->IsHeapNumber());
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CHECK(value->IsNumber());
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CHECK_EQ(static_cast<double>(Smi::kMinValue - 1), value->Number());
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#endif
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value = Heap::NumberFromUint32(static_cast<uint32_t>(Smi::kMaxValue) + 1);
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CHECK(value->IsHeapNumber());
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CHECK(value->IsNumber());
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CHECK_EQ(static_cast<double>(static_cast<uint32_t>(Smi::kMaxValue) + 1),
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value->Number());
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// nan oddball checks
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CHECK(Heap::nan_value()->IsNumber());
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CHECK(isnan(Heap::nan_value()->Number()));
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Handle<String> s = Factory::NewStringFromAscii(CStrVector("fisk hest "));
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CHECK(s->IsString());
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CHECK_EQ(10, s->length());
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String* object_symbol = String::cast(Heap::Object_symbol());
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CHECK(Top::context()->global()->HasLocalProperty(object_symbol));
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// Check ToString for oddballs
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CheckOddball(Heap::true_value(), "true");
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CheckOddball(Heap::false_value(), "false");
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CheckOddball(Heap::null_value(), "null");
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CheckOddball(Heap::undefined_value(), "undefined");
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// Check ToString for Smis
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CheckSmi(0, "0");
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CheckSmi(42, "42");
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CheckSmi(-42, "-42");
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// Check ToString for Numbers
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CheckNumber(1.1, "1.1");
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CheckFindCodeObject();
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}
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TEST(Tagging) {
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InitializeVM();
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int request = 24;
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CHECK_EQ(request, static_cast<int>(OBJECT_POINTER_ALIGN(request)));
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CHECK(Smi::FromInt(42)->IsSmi());
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CHECK(Failure::RetryAfterGC(request, NEW_SPACE)->IsFailure());
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CHECK_EQ(request, Failure::RetryAfterGC(request, NEW_SPACE)->requested());
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CHECK_EQ(NEW_SPACE,
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Failure::RetryAfterGC(request, NEW_SPACE)->allocation_space());
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CHECK_EQ(OLD_POINTER_SPACE,
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Failure::RetryAfterGC(request,
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OLD_POINTER_SPACE)->allocation_space());
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CHECK(Failure::Exception()->IsFailure());
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CHECK(Smi::FromInt(Smi::kMinValue)->IsSmi());
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CHECK(Smi::FromInt(Smi::kMaxValue)->IsSmi());
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}
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TEST(GarbageCollection) {
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InitializeVM();
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v8::HandleScope sc;
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// Check GC.
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int free_bytes = Heap::MaxObjectSizeInPagedSpace();
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CHECK(Heap::CollectGarbage(free_bytes, NEW_SPACE));
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Handle<String> name = Factory::LookupAsciiSymbol("theFunction");
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Handle<String> prop_name = Factory::LookupAsciiSymbol("theSlot");
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Handle<String> prop_namex = Factory::LookupAsciiSymbol("theSlotx");
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Handle<String> obj_name = Factory::LookupAsciiSymbol("theObject");
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{
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v8::HandleScope inner_scope;
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// Allocate a function and keep it in global object's property.
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Handle<JSFunction> function =
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Factory::NewFunction(name, Factory::undefined_value());
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Handle<Map> initial_map =
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Factory::NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
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function->set_initial_map(*initial_map);
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Top::context()->global()->SetProperty(*name, *function, NONE);
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// Allocate an object. Unrooted after leaving the scope.
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Handle<JSObject> obj = Factory::NewJSObject(function);
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obj->SetProperty(*prop_name, Smi::FromInt(23), NONE);
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obj->SetProperty(*prop_namex, Smi::FromInt(24), NONE);
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CHECK_EQ(Smi::FromInt(23), obj->GetProperty(*prop_name));
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CHECK_EQ(Smi::FromInt(24), obj->GetProperty(*prop_namex));
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}
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CHECK(Heap::CollectGarbage(free_bytes, NEW_SPACE));
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// Function should be alive.
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CHECK(Top::context()->global()->HasLocalProperty(*name));
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// Check function is retained.
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Object* func_value = Top::context()->global()->GetProperty(*name);
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CHECK(func_value->IsJSFunction());
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Handle<JSFunction> function(JSFunction::cast(func_value));
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{
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HandleScope inner_scope;
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// Allocate another object, make it reachable from global.
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Handle<JSObject> obj = Factory::NewJSObject(function);
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Top::context()->global()->SetProperty(*obj_name, *obj, NONE);
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obj->SetProperty(*prop_name, Smi::FromInt(23), NONE);
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}
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// After gc, it should survive.
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CHECK(Heap::CollectGarbage(free_bytes, NEW_SPACE));
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CHECK(Top::context()->global()->HasLocalProperty(*obj_name));
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CHECK(Top::context()->global()->GetProperty(*obj_name)->IsJSObject());
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JSObject* obj =
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JSObject::cast(Top::context()->global()->GetProperty(*obj_name));
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CHECK_EQ(Smi::FromInt(23), obj->GetProperty(*prop_name));
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}
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static void VerifyStringAllocation(const char* string) {
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v8::HandleScope scope;
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Handle<String> s = Factory::NewStringFromUtf8(CStrVector(string));
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CHECK_EQ(StrLength(string), s->length());
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for (int index = 0; index < s->length(); index++) {
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CHECK_EQ(static_cast<uint16_t>(string[index]), s->Get(index));
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}
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}
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TEST(String) {
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InitializeVM();
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VerifyStringAllocation("a");
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VerifyStringAllocation("ab");
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VerifyStringAllocation("abc");
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VerifyStringAllocation("abcd");
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VerifyStringAllocation("fiskerdrengen er paa havet");
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}
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TEST(LocalHandles) {
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InitializeVM();
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v8::HandleScope scope;
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const char* name = "Kasper the spunky";
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Handle<String> string = Factory::NewStringFromAscii(CStrVector(name));
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CHECK_EQ(StrLength(name), string->length());
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}
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TEST(GlobalHandles) {
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InitializeVM();
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Handle<Object> h1;
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Handle<Object> h2;
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Handle<Object> h3;
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Handle<Object> h4;
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{
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HandleScope scope;
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Handle<Object> i = Factory::NewStringFromAscii(CStrVector("fisk"));
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Handle<Object> u = Factory::NewNumber(1.12344);
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h1 = GlobalHandles::Create(*i);
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h2 = GlobalHandles::Create(*u);
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h3 = GlobalHandles::Create(*i);
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h4 = GlobalHandles::Create(*u);
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}
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// after gc, it should survive
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CHECK(Heap::CollectGarbage(0, NEW_SPACE));
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CHECK((*h1)->IsString());
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CHECK((*h2)->IsHeapNumber());
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CHECK((*h3)->IsString());
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CHECK((*h4)->IsHeapNumber());
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CHECK_EQ(*h3, *h1);
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GlobalHandles::Destroy(h1.location());
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GlobalHandles::Destroy(h3.location());
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CHECK_EQ(*h4, *h2);
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GlobalHandles::Destroy(h2.location());
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GlobalHandles::Destroy(h4.location());
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}
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static bool WeakPointerCleared = false;
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static void TestWeakGlobalHandleCallback(v8::Persistent<v8::Value> handle,
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void* id) {
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USE(handle);
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if (1234 == reinterpret_cast<intptr_t>(id)) WeakPointerCleared = true;
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}
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TEST(WeakGlobalHandlesScavenge) {
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InitializeVM();
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WeakPointerCleared = false;
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Handle<Object> h1;
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Handle<Object> h2;
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{
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HandleScope scope;
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Handle<Object> i = Factory::NewStringFromAscii(CStrVector("fisk"));
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Handle<Object> u = Factory::NewNumber(1.12344);
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h1 = GlobalHandles::Create(*i);
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h2 = GlobalHandles::Create(*u);
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}
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GlobalHandles::MakeWeak(h2.location(),
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reinterpret_cast<void*>(1234),
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&TestWeakGlobalHandleCallback);
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// Scavenge treats weak pointers as normal roots.
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Heap::PerformScavenge();
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CHECK((*h1)->IsString());
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CHECK((*h2)->IsHeapNumber());
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CHECK(!WeakPointerCleared);
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CHECK(!GlobalHandles::IsNearDeath(h2.location()));
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CHECK(!GlobalHandles::IsNearDeath(h1.location()));
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GlobalHandles::Destroy(h1.location());
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GlobalHandles::Destroy(h2.location());
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}
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TEST(WeakGlobalHandlesMark) {
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InitializeVM();
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WeakPointerCleared = false;
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Handle<Object> h1;
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Handle<Object> h2;
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{
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HandleScope scope;
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Handle<Object> i = Factory::NewStringFromAscii(CStrVector("fisk"));
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Handle<Object> u = Factory::NewNumber(1.12344);
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h1 = GlobalHandles::Create(*i);
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h2 = GlobalHandles::Create(*u);
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}
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CHECK(Heap::CollectGarbage(0, OLD_POINTER_SPACE));
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CHECK(Heap::CollectGarbage(0, NEW_SPACE));
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// Make sure the object is promoted.
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GlobalHandles::MakeWeak(h2.location(),
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reinterpret_cast<void*>(1234),
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&TestWeakGlobalHandleCallback);
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CHECK(!GlobalHandles::IsNearDeath(h1.location()));
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CHECK(!GlobalHandles::IsNearDeath(h2.location()));
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CHECK(Heap::CollectGarbage(0, OLD_POINTER_SPACE));
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CHECK((*h1)->IsString());
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CHECK(WeakPointerCleared);
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CHECK(!GlobalHandles::IsNearDeath(h1.location()));
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CHECK(GlobalHandles::IsNearDeath(h2.location()));
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GlobalHandles::Destroy(h1.location());
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GlobalHandles::Destroy(h2.location());
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}
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static void TestDeleteWeakGlobalHandleCallback(
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v8::Persistent<v8::Value> handle,
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void* id) {
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if (1234 == reinterpret_cast<intptr_t>(id)) WeakPointerCleared = true;
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handle.Dispose();
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}
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TEST(DeleteWeakGlobalHandle) {
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InitializeVM();
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WeakPointerCleared = false;
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Handle<Object> h;
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{
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HandleScope scope;
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Handle<Object> i = Factory::NewStringFromAscii(CStrVector("fisk"));
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h = GlobalHandles::Create(*i);
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}
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GlobalHandles::MakeWeak(h.location(),
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reinterpret_cast<void*>(1234),
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&TestDeleteWeakGlobalHandleCallback);
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// Scanvenge does not recognize weak reference.
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Heap::PerformScavenge();
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CHECK(!WeakPointerCleared);
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// Mark-compact treats weak reference properly.
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CHECK(Heap::CollectGarbage(0, OLD_POINTER_SPACE));
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CHECK(WeakPointerCleared);
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}
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static const char* not_so_random_string_table[] = {
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"abstract",
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"boolean",
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"break",
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"byte",
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"case",
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"catch",
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"char",
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"class",
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"const",
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"continue",
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"debugger",
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"default",
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"delete",
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"do",
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"double",
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"else",
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"enum",
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"export",
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"extends",
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"false",
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"final",
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"finally",
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"float",
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"for",
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"function",
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"goto",
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"if",
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"implements",
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"import",
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"in",
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"instanceof",
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"int",
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"interface",
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"long",
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"native",
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"new",
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"null",
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"package",
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"private",
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"protected",
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"public",
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"return",
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"short",
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"static",
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"super",
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"switch",
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"synchronized",
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"this",
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"throw",
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"throws",
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"transient",
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"true",
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"try",
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"typeof",
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"var",
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"void",
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"volatile",
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"while",
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"with",
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0
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};
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static void CheckSymbols(const char** strings) {
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for (const char* string = *strings; *strings != 0; string = *strings++) {
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Object* a = Heap::LookupAsciiSymbol(string);
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// LookupAsciiSymbol may return a failure if a GC is needed.
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if (a->IsFailure()) continue;
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CHECK(a->IsSymbol());
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Object* b = Heap::LookupAsciiSymbol(string);
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if (b->IsFailure()) continue;
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CHECK_EQ(b, a);
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CHECK(String::cast(b)->IsEqualTo(CStrVector(string)));
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}
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}
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TEST(SymbolTable) {
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InitializeVM();
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CheckSymbols(not_so_random_string_table);
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CheckSymbols(not_so_random_string_table);
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}
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TEST(FunctionAllocation) {
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InitializeVM();
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v8::HandleScope sc;
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Handle<String> name = Factory::LookupAsciiSymbol("theFunction");
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Handle<JSFunction> function =
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Factory::NewFunction(name, Factory::undefined_value());
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Handle<Map> initial_map =
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Factory::NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
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function->set_initial_map(*initial_map);
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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());
|
|
}
|
|
|