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+// Copyright 2009 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <stdlib.h>
+
+#include "v8.h"
+
+#include "api.h"
+#include "cctest.h"
+#include "frames-inl.h"
+#include "string-stream.h"
+
+using ::v8::ObjectTemplate;
+using ::v8::Value;
+using ::v8::Context;
+using ::v8::Local;
+using ::v8::String;
+using ::v8::Script;
+using ::v8::Function;
+using ::v8::AccessorInfo;
+using ::v8::Extension;
+
+namespace i = ::v8::internal;
+
+static v8::Handle<Value> handle_property(Local<String> name,
+ const AccessorInfo&) {
+ ApiTestFuzzer::Fuzz();
+ return v8_num(900);
+}
+
+
+THREADED_TEST(PropertyHandler) {
+ v8::HandleScope scope;
+ Local<v8::FunctionTemplate> fun_templ = v8::FunctionTemplate::New();
+ fun_templ->InstanceTemplate()->SetAccessor(v8_str("foo"), handle_property);
+ LocalContext env;
+ Local<Function> fun = fun_templ->GetFunction();
+ env->Global()->Set(v8_str("Fun"), fun);
+ Local<Script> getter = v8_compile("var obj = new Fun(); obj.foo;");
+ CHECK_EQ(900, getter->Run()->Int32Value());
+ Local<Script> setter = v8_compile("obj.foo = 901;");
+ CHECK_EQ(901, setter->Run()->Int32Value());
+}
+
+
+static v8::Handle<Value> GetIntValue(Local<String> property,
+ const AccessorInfo& info) {
+ ApiTestFuzzer::Fuzz();
+ int* value =
+ static_cast<int*>(v8::Handle<v8::External>::Cast(info.Data())->Value());
+ return v8_num(*value);
+}
+
+
+static void SetIntValue(Local<String> property,
+ Local<Value> value,
+ const AccessorInfo& info) {
+ int* field =
+ static_cast<int*>(v8::Handle<v8::External>::Cast(info.Data())->Value());
+ *field = value->Int32Value();
+}
+
+int foo, bar, baz;
+
+THREADED_TEST(GlobalVariableAccess) {
+ foo = 0;
+ bar = -4;
+ baz = 10;
+ v8::HandleScope scope;
+ v8::Handle<v8::FunctionTemplate> templ = v8::FunctionTemplate::New();
+ templ->InstanceTemplate()->SetAccessor(v8_str("foo"),
+ GetIntValue,
+ SetIntValue,
+ v8::External::New(&foo));
+ templ->InstanceTemplate()->SetAccessor(v8_str("bar"),
+ GetIntValue,
+ SetIntValue,
+ v8::External::New(&bar));
+ templ->InstanceTemplate()->SetAccessor(v8_str("baz"),
+ GetIntValue,
+ SetIntValue,
+ v8::External::New(&baz));
+ LocalContext env(0, templ->InstanceTemplate());
+ v8_compile("foo = (++bar) + baz")->Run();
+ CHECK_EQ(bar, -3);
+ CHECK_EQ(foo, 7);
+}
+
+
+static int x_register = 0;
+static v8::Handle<v8::Object> x_receiver;
+static v8::Handle<v8::Object> x_holder;
+
+
+static v8::Handle<Value> XGetter(Local<String> name, const AccessorInfo& info) {
+ ApiTestFuzzer::Fuzz();
+ CHECK_EQ(x_receiver, info.This());
+ CHECK_EQ(x_holder, info.Holder());
+ return v8_num(x_register);
+}
+
+
+static void XSetter(Local<String> name,
+ Local<Value> value,
+ const AccessorInfo& info) {
+ CHECK_EQ(x_holder, info.This());
+ CHECK_EQ(x_holder, info.Holder());
+ x_register = value->Int32Value();
+}
+
+
+THREADED_TEST(AccessorIC) {
+ v8::HandleScope scope;
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ obj->SetAccessor(v8_str("x"), XGetter, XSetter);
+ LocalContext context;
+ x_holder = obj->NewInstance();
+ context->Global()->Set(v8_str("holder"), x_holder);
+ x_receiver = v8::Object::New();
+ context->Global()->Set(v8_str("obj"), x_receiver);
+ v8::Handle<v8::Array> array = v8::Handle<v8::Array>::Cast(CompileRun(
+ "obj.__proto__ = holder;"
+ "var result = [];"
+ "for (var i = 0; i < 10; i++) {"
+ " holder.x = i;"
+ " result.push(obj.x);"
+ "}"
+ "result"));
+ CHECK_EQ(10, array->Length());
+ for (int i = 0; i < 10; i++) {
+ v8::Handle<Value> entry = array->Get(v8::Integer::New(i));
+ CHECK_EQ(v8::Integer::New(i), entry);
+ }
+}
+
+
+static v8::Handle<Value> AccessorProhibitsOverwritingGetter(
+ Local<String> name,
+ const AccessorInfo& info) {
+ ApiTestFuzzer::Fuzz();
+ return v8::True();
+}
+
+
+THREADED_TEST(AccessorProhibitsOverwriting) {
+ v8::HandleScope scope;
+ LocalContext context;
+ Local<ObjectTemplate> templ = ObjectTemplate::New();
+ templ->SetAccessor(v8_str("x"),
+ AccessorProhibitsOverwritingGetter,
+ 0,
+ v8::Handle<Value>(),
+ v8::PROHIBITS_OVERWRITING,
+ v8::ReadOnly);
+ Local<v8::Object> instance = templ->NewInstance();
+ context->Global()->Set(v8_str("obj"), instance);
+ Local<Value> value = CompileRun(
+ "obj.__defineGetter__('x', function() { return false; });"
+ "obj.x");
+ CHECK(value->BooleanValue());
+ value = CompileRun(
+ "var setter_called = false;"
+ "obj.__defineSetter__('x', function() { setter_called = true; });"
+ "obj.x = 42;"
+ "setter_called");
+ CHECK(!value->BooleanValue());
+ value = CompileRun(
+ "obj2 = {};"
+ "obj2.__proto__ = obj;"
+ "obj2.__defineGetter__('x', function() { return false; });"
+ "obj2.x");
+ CHECK(value->BooleanValue());
+ value = CompileRun(
+ "var setter_called = false;"
+ "obj2 = {};"
+ "obj2.__proto__ = obj;"
+ "obj2.__defineSetter__('x', function() { setter_called = true; });"
+ "obj2.x = 42;"
+ "setter_called");
+ CHECK(!value->BooleanValue());
+}
+
+
+template <int C>
+static v8::Handle<Value> HandleAllocatingGetter(Local<String> name,
+ const AccessorInfo& info) {
+ ApiTestFuzzer::Fuzz();
+ for (int i = 0; i < C; i++)
+ v8::String::New("foo");
+ return v8::String::New("foo");
+}
+
+
+THREADED_TEST(HandleScopePop) {
+ v8::HandleScope scope;
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ obj->SetAccessor(v8_str("one"), HandleAllocatingGetter<1>);
+ obj->SetAccessor(v8_str("many"), HandleAllocatingGetter<1024>);
+ LocalContext context;
+ v8::Handle<v8::Object> inst = obj->NewInstance();
+ context->Global()->Set(v8::String::New("obj"), inst);
+ int count_before = i::HandleScope::NumberOfHandles();
+ {
+ v8::HandleScope scope;
+ CompileRun(
+ "for (var i = 0; i < 1000; i++) {"
+ " obj.one;"
+ " obj.many;"
+ "}");
+ }
+ int count_after = i::HandleScope::NumberOfHandles();
+ CHECK_EQ(count_before, count_after);
+}
+
+static v8::Handle<Value> CheckAccessorArgsCorrect(Local<String> name,
+ const AccessorInfo& info) {
+ CHECK(info.This() == info.Holder());
+ CHECK(info.Data()->Equals(v8::String::New("data")));
+ ApiTestFuzzer::Fuzz();
+ CHECK(info.This() == info.Holder());
+ CHECK(info.Data()->Equals(v8::String::New("data")));
+ i::Heap::CollectAllGarbage(true);
+ CHECK(info.This() == info.Holder());
+ CHECK(info.Data()->Equals(v8::String::New("data")));
+ return v8::Integer::New(17);
+}
+
+THREADED_TEST(DirectCall) {
+ v8::HandleScope scope;
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ obj->SetAccessor(v8_str("xxx"),
+ CheckAccessorArgsCorrect,
+ NULL,
+ v8::String::New("data"));
+ LocalContext context;
+ v8::Handle<v8::Object> inst = obj->NewInstance();
+ context->Global()->Set(v8::String::New("obj"), inst);
+ Local<Script> scr = v8::Script::Compile(v8::String::New("obj.xxx"));
+ for (int i = 0; i < 10; i++) {
+ Local<Value> result = scr->Run();
+ CHECK(!result.IsEmpty());
+ CHECK_EQ(17, result->Int32Value());
+ }
+}
+
+static v8::Handle<Value> EmptyGetter(Local<String> name,
+ const AccessorInfo& info) {
+ CheckAccessorArgsCorrect(name, info);
+ ApiTestFuzzer::Fuzz();
+ CheckAccessorArgsCorrect(name, info);
+ return v8::Handle<v8::Value>();
+}
+
+THREADED_TEST(EmptyResult) {
+ v8::HandleScope scope;
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ obj->SetAccessor(v8_str("xxx"), EmptyGetter, NULL, v8::String::New("data"));
+ LocalContext context;
+ v8::Handle<v8::Object> inst = obj->NewInstance();
+ context->Global()->Set(v8::String::New("obj"), inst);
+ Local<Script> scr = v8::Script::Compile(v8::String::New("obj.xxx"));
+ for (int i = 0; i < 10; i++) {
+ Local<Value> result = scr->Run();
+ CHECK(result == v8::Undefined());
+ }
+}
+
+
+THREADED_TEST(NoReuseRegress) {
+ // Check that the IC generated for the one test doesn't get reused
+ // for the other.
+ v8::HandleScope scope;
+ {
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ obj->SetAccessor(v8_str("xxx"), EmptyGetter, NULL, v8::String::New("data"));
+ LocalContext context;
+ v8::Handle<v8::Object> inst = obj->NewInstance();
+ context->Global()->Set(v8::String::New("obj"), inst);
+ Local<Script> scr = v8::Script::Compile(v8::String::New("obj.xxx"));
+ for (int i = 0; i < 2; i++) {
+ Local<Value> result = scr->Run();
+ CHECK(result == v8::Undefined());
+ }
+ }
+ {
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ obj->SetAccessor(v8_str("xxx"),
+ CheckAccessorArgsCorrect,
+ NULL,
+ v8::String::New("data"));
+ LocalContext context;
+ v8::Handle<v8::Object> inst = obj->NewInstance();
+ context->Global()->Set(v8::String::New("obj"), inst);
+ Local<Script> scr = v8::Script::Compile(v8::String::New("obj.xxx"));
+ for (int i = 0; i < 10; i++) {
+ Local<Value> result = scr->Run();
+ CHECK(!result.IsEmpty());
+ CHECK_EQ(17, result->Int32Value());
+ }
+ }
+}
+
+static v8::Handle<Value> ThrowingGetAccessor(Local<String> name,
+ const AccessorInfo& info) {
+ ApiTestFuzzer::Fuzz();
+ return v8::ThrowException(v8_str("g"));
+}
+
+
+static void ThrowingSetAccessor(Local<String> name,
+ Local<Value> value,
+ const AccessorInfo& info) {
+ v8::ThrowException(value);
+}
+
+
+THREADED_TEST(Regress1054726) {
+ v8::HandleScope scope;
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ obj->SetAccessor(v8_str("x"),
+ ThrowingGetAccessor,
+ ThrowingSetAccessor,
+ Local<Value>());
+
+ LocalContext env;
+ env->Global()->Set(v8_str("obj"), obj->NewInstance());
+
+ // Use the throwing property setter/getter in a loop to force
+ // the accessor ICs to be initialized.
+ v8::Handle<Value> result;
+ result = Script::Compile(v8_str(
+ "var result = '';"
+ "for (var i = 0; i < 5; i++) {"
+ " try { obj.x; } catch (e) { result += e; }"
+ "}; result"))->Run();
+ CHECK_EQ(v8_str("ggggg"), result);
+
+ result = Script::Compile(String::New(
+ "var result = '';"
+ "for (var i = 0; i < 5; i++) {"
+ " try { obj.x = i; } catch (e) { result += e; }"
+ "}; result"))->Run();
+ CHECK_EQ(v8_str("01234"), result);
+}
+
+
+static v8::Handle<Value> AllocGetter(Local<String> name,
+ const AccessorInfo& info) {
+ ApiTestFuzzer::Fuzz();
+ return v8::Array::New(1000);
+}
+
+
+THREADED_TEST(Gc) {
+ v8::HandleScope scope;
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ obj->SetAccessor(v8_str("xxx"), AllocGetter);
+ LocalContext env;
+ env->Global()->Set(v8_str("obj"), obj->NewInstance());
+ Script::Compile(String::New(
+ "var last = [];"
+ "for (var i = 0; i < 2048; i++) {"
+ " var result = obj.xxx;"
+ " result[0] = last;"
+ " last = result;"
+ "}"))->Run();
+}
+
+
+static v8::Handle<Value> StackCheck(Local<String> name,
+ const AccessorInfo& info) {
+ i::StackFrameIterator iter;
+ for (int i = 0; !iter.done(); i++) {
+ i::StackFrame* frame = iter.frame();
+ CHECK(i != 0 || (frame->type() == i::StackFrame::EXIT));
+ CHECK(frame->code()->IsCode());
+ i::Address pc = frame->pc();
+ i::Code* code = frame->code();
+ CHECK(code->contains(pc));
+ iter.Advance();
+ }
+ return v8::Undefined();
+}
+
+
+THREADED_TEST(StackIteration) {
+ v8::HandleScope scope;
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ i::StringStream::ClearMentionedObjectCache();
+ obj->SetAccessor(v8_str("xxx"), StackCheck);
+ LocalContext env;
+ env->Global()->Set(v8_str("obj"), obj->NewInstance());
+ Script::Compile(String::New(
+ "function foo() {"
+ " return obj.xxx;"
+ "}"
+ "for (var i = 0; i < 100; i++) {"
+ " foo();"
+ "}"))->Run();
+}
+
+
+static v8::Handle<Value> AllocateHandles(Local<String> name,
+ const AccessorInfo& info) {
+ for (int i = 0; i < i::kHandleBlockSize + 1; i++) {
+ v8::Local<v8::Value>::New(name);
+ }
+ return v8::Integer::New(100);
+}
+
+
+THREADED_TEST(HandleScopeSegment) {
+ // Check that we can return values past popping of handle scope
+ // segments.
+ v8::HandleScope scope;
+ v8::Handle<v8::ObjectTemplate> obj = ObjectTemplate::New();
+ obj->SetAccessor(v8_str("xxx"), AllocateHandles);
+ LocalContext env;
+ env->Global()->Set(v8_str("obj"), obj->NewInstance());
+ v8::Handle<v8::Value> result = Script::Compile(String::New(
+ "var result;"
+ "for (var i = 0; i < 4; i++)"
+ " result = obj.xxx;"
+ "result;"))->Run();
+ CHECK_EQ(100, result->Int32Value());
+}
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