Regis Crelier
7f57ebcfa1
They were used as the class of closure instances and as the type class of function types. All closure instances now have class _Closure and function types are represented by a new class FunctionType extending AbstractType. Fix issue 24567 and add regression test. R=asiva@google.com, rmacnak@google.com Review URL: https://codereview.chromium.org/1584223006 .
393 lines
14 KiB
C++
393 lines
14 KiB
C++
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#include "vm/bootstrap_natives.h"
|
|
|
|
#include "lib/invocation_mirror.h"
|
|
#include "vm/code_patcher.h"
|
|
#include "vm/exceptions.h"
|
|
#include "vm/heap.h"
|
|
#include "vm/native_entry.h"
|
|
#include "vm/object.h"
|
|
#include "vm/report.h"
|
|
#include "vm/stack_frame.h"
|
|
#include "vm/symbols.h"
|
|
|
|
namespace dart {
|
|
|
|
DECLARE_FLAG(bool, trace_type_checks);
|
|
DECLARE_FLAG(bool, warn_on_javascript_compatibility);
|
|
|
|
// Helper function in stacktrace.cc.
|
|
void _printCurrentStacktrace();
|
|
|
|
DEFINE_NATIVE_ENTRY(DartCore_fatal, 1) {
|
|
// The core library code entered an unrecoverable state.
|
|
const Instance& instance = Instance::CheckedHandle(arguments->NativeArgAt(0));
|
|
const char* msg = instance.ToCString();
|
|
OS::PrintErr("Fatal error in dart:core\n");
|
|
_printCurrentStacktrace();
|
|
FATAL(msg);
|
|
return Object::null();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_equals, 1) {
|
|
// Implemented in the flow graph builder.
|
|
UNREACHABLE();
|
|
return Object::null();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_getHash, 1) {
|
|
const Instance& instance = Instance::CheckedHandle(arguments->NativeArgAt(0));
|
|
Heap* heap = isolate->heap();
|
|
return Smi::New(heap->GetHash(instance.raw()));
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_setHash, 2) {
|
|
const Instance& instance = Instance::CheckedHandle(arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Smi, hash, arguments->NativeArgAt(1));
|
|
Heap* heap = isolate->heap();
|
|
heap->SetHash(instance.raw(), hash.Value());
|
|
return Object::null();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_toString, 1) {
|
|
const Instance& instance = Instance::CheckedHandle(arguments->NativeArgAt(0));
|
|
if (instance.IsString()) {
|
|
return instance.raw();
|
|
}
|
|
const char* c_str = instance.ToCString();
|
|
return String::New(c_str);
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_noSuchMethod, 6) {
|
|
const Instance& instance = Instance::CheckedHandle(arguments->NativeArgAt(0));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Bool, is_method, arguments->NativeArgAt(1));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(String, member_name, arguments->NativeArgAt(2));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Smi, invocation_type, arguments->NativeArgAt(3));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(Instance, func_args, arguments->NativeArgAt(4));
|
|
GET_NON_NULL_NATIVE_ARGUMENT(
|
|
Instance, func_named_args, arguments->NativeArgAt(5));
|
|
const Array& dart_arguments = Array::Handle(Array::New(6));
|
|
dart_arguments.SetAt(0, instance);
|
|
dart_arguments.SetAt(1, member_name);
|
|
dart_arguments.SetAt(2, invocation_type);
|
|
dart_arguments.SetAt(3, func_args);
|
|
dart_arguments.SetAt(4, func_named_args);
|
|
|
|
if (is_method.value() &&
|
|
(((invocation_type.Value() >> InvocationMirror::kCallShift) &
|
|
InvocationMirror::kCallMask) != InvocationMirror::kSuper)) {
|
|
// Report if a function with same name (but different arguments) has been
|
|
// found.
|
|
Function& function = Function::Handle();
|
|
if (instance.IsClosure()) {
|
|
function = Closure::Cast(instance).function();
|
|
} else {
|
|
Class& instance_class = Class::Handle(instance.clazz());
|
|
function = instance_class.LookupDynamicFunction(member_name);
|
|
while (function.IsNull()) {
|
|
instance_class = instance_class.SuperClass();
|
|
if (instance_class.IsNull()) break;
|
|
function = instance_class.LookupDynamicFunction(member_name);
|
|
}
|
|
}
|
|
if (!function.IsNull()) {
|
|
const intptr_t total_num_parameters = function.NumParameters();
|
|
const Array& array = Array::Handle(Array::New(total_num_parameters - 1));
|
|
// Skip receiver.
|
|
for (int i = 1; i < total_num_parameters; i++) {
|
|
array.SetAt(i - 1, String::Handle(function.ParameterNameAt(i)));
|
|
}
|
|
dart_arguments.SetAt(5, array);
|
|
}
|
|
}
|
|
Exceptions::ThrowByType(Exceptions::kNoSuchMethod, dart_arguments);
|
|
return Object::null();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_runtimeType, 1) {
|
|
const Instance& instance = Instance::CheckedHandle(arguments->NativeArgAt(0));
|
|
// Special handling for following types outside this native.
|
|
ASSERT(!instance.IsString() && !instance.IsInteger() && !instance.IsDouble());
|
|
return instance.GetType();
|
|
}
|
|
|
|
|
|
static void WarnOnJSIntegralNumTypeTest(
|
|
const Instance& instance,
|
|
const TypeArguments& instantiator_type_arguments,
|
|
const AbstractType& type) {
|
|
const bool instance_is_int = instance.IsInteger();
|
|
const bool instance_is_double = instance.IsDouble();
|
|
if (!(instance_is_int || instance_is_double)) {
|
|
return;
|
|
}
|
|
AbstractType& instantiated_type = AbstractType::Handle(type.raw());
|
|
if (!type.IsInstantiated()) {
|
|
instantiated_type = type.InstantiateFrom(instantiator_type_arguments, NULL);
|
|
}
|
|
if (instance_is_double) {
|
|
if (instantiated_type.IsIntType()) {
|
|
const double value = Double::Cast(instance).value();
|
|
if (floor(value) == value) {
|
|
Report::JSWarningFromNative(
|
|
false, // Object_instanceOf and Object_as are not static calls.
|
|
"integral value of type 'double' is also considered to be "
|
|
"of type 'int'");
|
|
}
|
|
}
|
|
} else {
|
|
ASSERT(instance_is_int);
|
|
if (instantiated_type.IsDoubleType()) {
|
|
Report::JSWarningFromNative(
|
|
false, // Object_instanceOf and Object_as are not static calls.
|
|
"integer value is also considered to be of type 'double'");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_instanceOf, 4) {
|
|
const Instance& instance =
|
|
Instance::CheckedHandle(zone, arguments->NativeArgAt(0));
|
|
const TypeArguments& instantiator_type_arguments =
|
|
TypeArguments::CheckedHandle(zone, arguments->NativeArgAt(1));
|
|
const AbstractType& type =
|
|
AbstractType::CheckedHandle(zone, arguments->NativeArgAt(2));
|
|
const Bool& negate = Bool::CheckedHandle(zone, arguments->NativeArgAt(3));
|
|
ASSERT(type.IsFinalized());
|
|
ASSERT(!type.IsMalformed());
|
|
ASSERT(!type.IsMalbounded());
|
|
|
|
// Check for javascript compatibility.
|
|
if (FLAG_warn_on_javascript_compatibility) {
|
|
WarnOnJSIntegralNumTypeTest(instance, instantiator_type_arguments, type);
|
|
}
|
|
|
|
Error& bound_error = Error::Handle(zone, Error::null());
|
|
const bool is_instance_of = instance.IsInstanceOf(type,
|
|
instantiator_type_arguments,
|
|
&bound_error);
|
|
if (FLAG_trace_type_checks) {
|
|
const char* result_str = is_instance_of ? "true" : "false";
|
|
OS::Print("Native Object.instanceOf: result %s\n", result_str);
|
|
const AbstractType& instance_type =
|
|
AbstractType::Handle(instance.GetType());
|
|
OS::Print(" instance type: %s\n",
|
|
String::Handle(instance_type.Name()).ToCString());
|
|
OS::Print(" test type: %s\n", String::Handle(type.Name()).ToCString());
|
|
if (!bound_error.IsNull()) {
|
|
OS::Print(" bound error: %s\n", bound_error.ToErrorCString());
|
|
}
|
|
}
|
|
if (!is_instance_of && !bound_error.IsNull()) {
|
|
// Throw a dynamic type error only if the instanceof test fails.
|
|
DartFrameIterator iterator;
|
|
StackFrame* caller_frame = iterator.NextFrame();
|
|
ASSERT(caller_frame != NULL);
|
|
const intptr_t location = caller_frame->GetTokenPos();
|
|
String& bound_error_message = String::Handle(
|
|
zone, String::New(bound_error.ToErrorCString()));
|
|
Exceptions::CreateAndThrowTypeError(
|
|
location, Symbols::Empty(), Symbols::Empty(),
|
|
Symbols::Empty(), bound_error_message);
|
|
UNREACHABLE();
|
|
}
|
|
return Bool::Get(negate.value() ? !is_instance_of : is_instance_of).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_instanceOfNum, 2) {
|
|
const Instance& instance =
|
|
Instance::CheckedHandle(zone, arguments->NativeArgAt(0));
|
|
const Bool& negate = Bool::CheckedHandle(zone, arguments->NativeArgAt(1));
|
|
bool is_instance_of = instance.IsNumber();
|
|
if (negate.value()) {
|
|
is_instance_of = !is_instance_of;
|
|
}
|
|
return Bool::Get(is_instance_of).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_instanceOfInt, 2) {
|
|
const Instance& instance =
|
|
Instance::CheckedHandle(zone, arguments->NativeArgAt(0));
|
|
const Bool& negate = Bool::CheckedHandle(zone, arguments->NativeArgAt(1));
|
|
bool is_instance_of = instance.IsInteger();
|
|
if (negate.value()) {
|
|
is_instance_of = !is_instance_of;
|
|
}
|
|
return Bool::Get(is_instance_of).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_instanceOfSmi, 2) {
|
|
const Instance& instance =
|
|
Instance::CheckedHandle(zone, arguments->NativeArgAt(0));
|
|
const Bool& negate = Bool::CheckedHandle(zone, arguments->NativeArgAt(1));
|
|
bool is_instance_of = instance.IsSmi();
|
|
if (negate.value()) {
|
|
is_instance_of = !is_instance_of;
|
|
}
|
|
return Bool::Get(is_instance_of).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_instanceOfDouble, 2) {
|
|
const Instance& instance =
|
|
Instance::CheckedHandle(zone, arguments->NativeArgAt(0));
|
|
const Bool& negate = Bool::CheckedHandle(zone, arguments->NativeArgAt(1));
|
|
bool is_instance_of = instance.IsDouble();
|
|
if (negate.value()) {
|
|
is_instance_of = !is_instance_of;
|
|
}
|
|
return Bool::Get(is_instance_of).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_instanceOfString, 2) {
|
|
const Instance& instance =
|
|
Instance::CheckedHandle(zone, arguments->NativeArgAt(0));
|
|
const Bool& negate = Bool::CheckedHandle(zone, arguments->NativeArgAt(1));
|
|
bool is_instance_of = instance.IsString();
|
|
if (negate.value()) {
|
|
is_instance_of = !is_instance_of;
|
|
}
|
|
return Bool::Get(is_instance_of).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Object_as, 3) {
|
|
const Instance& instance = Instance::CheckedHandle(arguments->NativeArgAt(0));
|
|
const TypeArguments& instantiator_type_arguments =
|
|
TypeArguments::CheckedHandle(arguments->NativeArgAt(1));
|
|
const AbstractType& type =
|
|
AbstractType::CheckedHandle(arguments->NativeArgAt(2));
|
|
ASSERT(type.IsFinalized());
|
|
ASSERT(!type.IsMalformed());
|
|
ASSERT(!type.IsMalbounded());
|
|
Error& bound_error = Error::Handle();
|
|
if (instance.IsNull()) {
|
|
return instance.raw();
|
|
}
|
|
|
|
// Check for javascript compatibility.
|
|
if (FLAG_warn_on_javascript_compatibility) {
|
|
WarnOnJSIntegralNumTypeTest(instance, instantiator_type_arguments, type);
|
|
}
|
|
|
|
const bool is_instance_of = instance.IsInstanceOf(type,
|
|
instantiator_type_arguments,
|
|
&bound_error);
|
|
if (FLAG_trace_type_checks) {
|
|
const char* result_str = is_instance_of ? "true" : "false";
|
|
OS::Print("Object.as: result %s\n", result_str);
|
|
const AbstractType& instance_type =
|
|
AbstractType::Handle(instance.GetType());
|
|
OS::Print(" instance type: %s\n",
|
|
String::Handle(instance_type.Name()).ToCString());
|
|
OS::Print(" cast type: %s\n", String::Handle(type.Name()).ToCString());
|
|
if (!bound_error.IsNull()) {
|
|
OS::Print(" bound error: %s\n", bound_error.ToErrorCString());
|
|
}
|
|
}
|
|
if (!is_instance_of) {
|
|
DartFrameIterator iterator;
|
|
StackFrame* caller_frame = iterator.NextFrame();
|
|
ASSERT(caller_frame != NULL);
|
|
const intptr_t location = caller_frame->GetTokenPos();
|
|
const AbstractType& instance_type =
|
|
AbstractType::Handle(instance.GetType());
|
|
const String& instance_type_name =
|
|
String::Handle(instance_type.UserVisibleName());
|
|
String& type_name = String::Handle();
|
|
if (!type.IsInstantiated()) {
|
|
// Instantiate type before reporting the error.
|
|
const AbstractType& instantiated_type = AbstractType::Handle(
|
|
type.InstantiateFrom(instantiator_type_arguments, NULL));
|
|
// Note that instantiated_type may be malformed.
|
|
type_name = instantiated_type.UserVisibleName();
|
|
} else {
|
|
type_name = type.UserVisibleName();
|
|
}
|
|
String& bound_error_message = String::Handle();
|
|
if (bound_error.IsNull()) {
|
|
const String& dst_name = String::ZoneHandle(
|
|
Symbols::New(Exceptions::kCastErrorDstName));
|
|
|
|
Exceptions::CreateAndThrowTypeError(
|
|
location, instance_type_name, type_name,
|
|
dst_name, Object::null_string());
|
|
} else {
|
|
ASSERT(isolate->flags().type_checks());
|
|
bound_error_message = String::New(bound_error.ToErrorCString());
|
|
Exceptions::CreateAndThrowTypeError(
|
|
location, instance_type_name, Symbols::Empty(),
|
|
Symbols::Empty(), bound_error_message);
|
|
}
|
|
UNREACHABLE();
|
|
}
|
|
return instance.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(AbstractType_toString, 1) {
|
|
const AbstractType& type =
|
|
AbstractType::CheckedHandle(arguments->NativeArgAt(0));
|
|
return type.UserVisibleName();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(LibraryPrefix_invalidateDependentCode, 1) {
|
|
const LibraryPrefix& prefix =
|
|
LibraryPrefix::CheckedHandle(arguments->NativeArgAt(0));
|
|
prefix.InvalidateDependentCode();
|
|
return Bool::Get(true).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(LibraryPrefix_load, 1) {
|
|
const LibraryPrefix& prefix =
|
|
LibraryPrefix::CheckedHandle(arguments->NativeArgAt(0));
|
|
bool hasCompleted = prefix.LoadLibrary();
|
|
return Bool::Get(hasCompleted).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(LibraryPrefix_loadError, 1) {
|
|
const LibraryPrefix& prefix =
|
|
LibraryPrefix::CheckedHandle(arguments->NativeArgAt(0));
|
|
// Currently all errors are Dart instances, e.g. I/O errors
|
|
// created by deferred loading code. LanguageErrors from
|
|
// failed loading or finalization attempts are propagated and result
|
|
// in the isolate's death.
|
|
const Instance& error = Instance::Handle(prefix.LoadError());
|
|
return error.raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(LibraryPrefix_isLoaded, 1) {
|
|
const LibraryPrefix& prefix =
|
|
LibraryPrefix::CheckedHandle(arguments->NativeArgAt(0));
|
|
return Bool::Get(prefix.is_loaded()).raw();
|
|
}
|
|
|
|
|
|
DEFINE_NATIVE_ENTRY(Internal_inquireIs64Bit, 0) {
|
|
#if defined(ARCH_IS_64_BIT)
|
|
return Bool::True().raw();
|
|
#else
|
|
return Bool::False().raw();
|
|
#endif // defined(ARCH_IS_64_BIT)
|
|
}
|
|
|
|
} // namespace dart
|