| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/runtime/runtime-utils.h" |
| |
| #include "src/arguments.h" |
| #include "src/ast/prettyprinter.h" |
| #include "src/bootstrapper.h" |
| #include "src/conversions.h" |
| #include "src/debug/debug.h" |
| #include "src/frames-inl.h" |
| #include "src/isolate-inl.h" |
| #include "src/messages.h" |
| #include "src/parsing/parser.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| RUNTIME_FUNCTION(Runtime_CheckIsBootstrapping) { |
| SealHandleScope shs(isolate); |
| DCHECK(args.length() == 0); |
| RUNTIME_ASSERT(isolate->bootstrapper()->IsActive()); |
| return isolate->heap()->undefined_value(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ExportFromRuntime) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 1); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, container, 0); |
| RUNTIME_ASSERT(isolate->bootstrapper()->IsActive()); |
| JSObject::NormalizeProperties(container, KEEP_INOBJECT_PROPERTIES, 10, |
| "ExportFromRuntime"); |
| Bootstrapper::ExportFromRuntime(isolate, container); |
| JSObject::MigrateSlowToFast(container, 0, "ExportFromRuntime"); |
| return *container; |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ExportExperimentalFromRuntime) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 1); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, container, 0); |
| RUNTIME_ASSERT(isolate->bootstrapper()->IsActive()); |
| JSObject::NormalizeProperties(container, KEEP_INOBJECT_PROPERTIES, 10, |
| "ExportExperimentalFromRuntime"); |
| Bootstrapper::ExportExperimentalFromRuntime(isolate, container); |
| JSObject::MigrateSlowToFast(container, 0, "ExportExperimentalFromRuntime"); |
| return *container; |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_InstallToContext) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 1); |
| CONVERT_ARG_HANDLE_CHECKED(JSArray, array, 0); |
| RUNTIME_ASSERT(array->HasFastElements()); |
| RUNTIME_ASSERT(isolate->bootstrapper()->IsActive()); |
| Handle<Context> native_context = isolate->native_context(); |
| Handle<FixedArray> fixed_array(FixedArray::cast(array->elements())); |
| int length = Smi::cast(array->length())->value(); |
| for (int i = 0; i < length; i += 2) { |
| RUNTIME_ASSERT(fixed_array->get(i)->IsString()); |
| Handle<String> name(String::cast(fixed_array->get(i))); |
| RUNTIME_ASSERT(fixed_array->get(i + 1)->IsJSObject()); |
| Handle<JSObject> object(JSObject::cast(fixed_array->get(i + 1))); |
| int index = Context::ImportedFieldIndexForName(name); |
| if (index == Context::kNotFound) { |
| index = Context::IntrinsicIndexForName(name); |
| } |
| RUNTIME_ASSERT(index != Context::kNotFound); |
| native_context->set(index, *object); |
| } |
| return isolate->heap()->undefined_value(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_Throw) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 1); |
| return isolate->Throw(args[0]); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ReThrow) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 1); |
| return isolate->ReThrow(args[0]); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ThrowStackOverflow) { |
| SealHandleScope shs(isolate); |
| DCHECK_LE(0, args.length()); |
| return isolate->StackOverflow(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_UnwindAndFindExceptionHandler) { |
| SealHandleScope shs(isolate); |
| DCHECK(args.length() == 0); |
| return isolate->UnwindAndFindHandler(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_PromoteScheduledException) { |
| SealHandleScope shs(isolate); |
| DCHECK(args.length() == 0); |
| return isolate->PromoteScheduledException(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ThrowReferenceError) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 1); |
| CONVERT_ARG_HANDLE_CHECKED(Object, name, 0); |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, NewReferenceError(MessageTemplate::kNotDefined, name)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_NewTypeError) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 2); |
| CONVERT_INT32_ARG_CHECKED(template_index, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, arg0, 1); |
| auto message_template = |
| static_cast<MessageTemplate::Template>(template_index); |
| return *isolate->factory()->NewTypeError(message_template, arg0); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_NewReferenceError) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 2); |
| CONVERT_INT32_ARG_CHECKED(template_index, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, arg0, 1); |
| auto message_template = |
| static_cast<MessageTemplate::Template>(template_index); |
| return *isolate->factory()->NewReferenceError(message_template, arg0); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_NewSyntaxError) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 2); |
| CONVERT_INT32_ARG_CHECKED(template_index, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, arg0, 1); |
| auto message_template = |
| static_cast<MessageTemplate::Template>(template_index); |
| return *isolate->factory()->NewSyntaxError(message_template, arg0); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ThrowIllegalInvocation) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 0); |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, NewTypeError(MessageTemplate::kIllegalInvocation)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ThrowIteratorResultNotAnObject) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 1); |
| CONVERT_ARG_HANDLE_CHECKED(Object, value, 0); |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, |
| NewTypeError(MessageTemplate::kIteratorResultNotAnObject, value)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ThrowStrongModeImplicitConversion) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 0); |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, NewTypeError(MessageTemplate::kStrongImplicitConversion)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ThrowApplyNonFunction) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(1, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| Handle<String> type = Object::TypeOf(isolate, object); |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, NewTypeError(MessageTemplate::kApplyNonFunction, object, type)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_PromiseRejectEvent) { |
| DCHECK(args.length() == 3); |
| HandleScope scope(isolate); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, promise, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, value, 1); |
| CONVERT_BOOLEAN_ARG_CHECKED(debug_event, 2); |
| if (debug_event) isolate->debug()->OnPromiseReject(promise, value); |
| Handle<Symbol> key = isolate->factory()->promise_has_handler_symbol(); |
| // Do not report if we actually have a handler. |
| if (JSReceiver::GetDataProperty(promise, key)->IsUndefined()) { |
| isolate->ReportPromiseReject(promise, value, |
| v8::kPromiseRejectWithNoHandler); |
| } |
| return isolate->heap()->undefined_value(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_PromiseRevokeReject) { |
| DCHECK(args.length() == 1); |
| HandleScope scope(isolate); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, promise, 0); |
| Handle<Symbol> key = isolate->factory()->promise_has_handler_symbol(); |
| // At this point, no revocation has been issued before |
| RUNTIME_ASSERT(JSReceiver::GetDataProperty(promise, key)->IsUndefined()); |
| isolate->ReportPromiseReject(promise, Handle<Object>(), |
| v8::kPromiseHandlerAddedAfterReject); |
| return isolate->heap()->undefined_value(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_StackGuard) { |
| SealHandleScope shs(isolate); |
| DCHECK(args.length() == 0); |
| |
| // First check if this is a real stack overflow. |
| StackLimitCheck check(isolate); |
| if (check.JsHasOverflowed()) { |
| return isolate->StackOverflow(); |
| } |
| |
| return isolate->stack_guard()->HandleInterrupts(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_Interrupt) { |
| SealHandleScope shs(isolate); |
| DCHECK(args.length() == 0); |
| return isolate->stack_guard()->HandleInterrupts(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_AllocateInNewSpace) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 1); |
| CONVERT_SMI_ARG_CHECKED(size, 0); |
| RUNTIME_ASSERT(IsAligned(size, kPointerSize)); |
| RUNTIME_ASSERT(size > 0); |
| RUNTIME_ASSERT(size <= Page::kMaxRegularHeapObjectSize); |
| return *isolate->factory()->NewFillerObject(size, false, NEW_SPACE); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_AllocateInTargetSpace) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 2); |
| CONVERT_SMI_ARG_CHECKED(size, 0); |
| CONVERT_SMI_ARG_CHECKED(flags, 1); |
| RUNTIME_ASSERT(IsAligned(size, kPointerSize)); |
| RUNTIME_ASSERT(size > 0); |
| RUNTIME_ASSERT(size <= Page::kMaxRegularHeapObjectSize); |
| bool double_align = AllocateDoubleAlignFlag::decode(flags); |
| AllocationSpace space = AllocateTargetSpace::decode(flags); |
| return *isolate->factory()->NewFillerObject(size, double_align, space); |
| } |
| |
| |
| // Collect the raw data for a stack trace. Returns an array of 4 |
| // element segments each containing a receiver, function, code and |
| // native code offset. |
| RUNTIME_FUNCTION(Runtime_CollectStackTrace) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 2); |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, error_object, 0); |
| CONVERT_ARG_HANDLE_CHECKED(Object, caller, 1); |
| |
| if (!isolate->bootstrapper()->IsActive()) { |
| // Optionally capture a more detailed stack trace for the message. |
| RETURN_FAILURE_ON_EXCEPTION( |
| isolate, isolate->CaptureAndSetDetailedStackTrace(error_object)); |
| // Capture a simple stack trace for the stack property. |
| RETURN_FAILURE_ON_EXCEPTION( |
| isolate, isolate->CaptureAndSetSimpleStackTrace(error_object, caller)); |
| } |
| return isolate->heap()->undefined_value(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_MessageGetStartPosition) { |
| SealHandleScope shs(isolate); |
| DCHECK(args.length() == 1); |
| CONVERT_ARG_CHECKED(JSMessageObject, message, 0); |
| return Smi::FromInt(message->start_position()); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_MessageGetScript) { |
| SealHandleScope shs(isolate); |
| DCHECK(args.length() == 1); |
| CONVERT_ARG_CHECKED(JSMessageObject, message, 0); |
| return message->script(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_FormatMessageString) { |
| HandleScope scope(isolate); |
| DCHECK(args.length() == 4); |
| CONVERT_INT32_ARG_CHECKED(template_index, 0); |
| CONVERT_ARG_HANDLE_CHECKED(String, arg0, 1); |
| CONVERT_ARG_HANDLE_CHECKED(String, arg1, 2); |
| CONVERT_ARG_HANDLE_CHECKED(String, arg2, 3); |
| Handle<String> result; |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, result, |
| MessageTemplate::FormatMessage(template_index, arg0, arg1, arg2)); |
| isolate->native_context()->IncrementErrorsThrown(); |
| return *result; |
| } |
| |
| |
| #define CALLSITE_GET(NAME, RETURN) \ |
| RUNTIME_FUNCTION(Runtime_CallSite##NAME##RT) { \ |
| HandleScope scope(isolate); \ |
| DCHECK(args.length() == 1); \ |
| CONVERT_ARG_HANDLE_CHECKED(JSObject, call_site_obj, 0); \ |
| Handle<String> result; \ |
| CallSite call_site(isolate, call_site_obj); \ |
| RUNTIME_ASSERT(call_site.IsValid()) \ |
| return RETURN(call_site.NAME(), isolate); \ |
| } |
| |
| static inline Object* ReturnDereferencedHandle(Handle<Object> obj, |
| Isolate* isolate) { |
| return *obj; |
| } |
| |
| |
| static inline Object* ReturnPositiveNumberOrNull(int value, Isolate* isolate) { |
| if (value >= 0) return *isolate->factory()->NewNumberFromInt(value); |
| return isolate->heap()->null_value(); |
| } |
| |
| |
| static inline Object* ReturnBoolean(bool value, Isolate* isolate) { |
| return isolate->heap()->ToBoolean(value); |
| } |
| |
| |
| CALLSITE_GET(GetFileName, ReturnDereferencedHandle) |
| CALLSITE_GET(GetFunctionName, ReturnDereferencedHandle) |
| CALLSITE_GET(GetScriptNameOrSourceUrl, ReturnDereferencedHandle) |
| CALLSITE_GET(GetMethodName, ReturnDereferencedHandle) |
| CALLSITE_GET(GetLineNumber, ReturnPositiveNumberOrNull) |
| CALLSITE_GET(GetColumnNumber, ReturnPositiveNumberOrNull) |
| CALLSITE_GET(IsNative, ReturnBoolean) |
| CALLSITE_GET(IsToplevel, ReturnBoolean) |
| CALLSITE_GET(IsEval, ReturnBoolean) |
| CALLSITE_GET(IsConstructor, ReturnBoolean) |
| |
| #undef CALLSITE_GET |
| |
| |
| RUNTIME_FUNCTION(Runtime_IS_VAR) { |
| UNREACHABLE(); // implemented as macro in the parser |
| return NULL; |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_IncrementStatsCounter) { |
| SealHandleScope shs(isolate); |
| DCHECK(args.length() == 1); |
| CONVERT_ARG_CHECKED(String, name, 0); |
| |
| if (FLAG_native_code_counters) { |
| StatsCounter(isolate, name->ToCString().get()).Increment(); |
| } |
| return isolate->heap()->undefined_value(); |
| } |
| |
| |
| namespace { |
| |
| bool ComputeLocation(Isolate* isolate, MessageLocation* target) { |
| JavaScriptFrameIterator it(isolate); |
| if (!it.done()) { |
| JavaScriptFrame* frame = it.frame(); |
| JSFunction* fun = frame->function(); |
| Object* script = fun->shared()->script(); |
| if (script->IsScript() && |
| !(Script::cast(script)->source()->IsUndefined())) { |
| Handle<Script> casted_script(Script::cast(script)); |
| // Compute the location from the function and the relocation info of the |
| // baseline code. For optimized code this will use the deoptimization |
| // information to get canonical location information. |
| List<FrameSummary> frames(FLAG_max_inlining_levels + 1); |
| it.frame()->Summarize(&frames); |
| FrameSummary& summary = frames.last(); |
| int pos = summary.abstract_code()->SourcePosition(summary.code_offset()); |
| *target = MessageLocation(casted_script, pos, pos + 1, handle(fun)); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| Handle<String> RenderCallSite(Isolate* isolate, Handle<Object> object) { |
| MessageLocation location; |
| if (ComputeLocation(isolate, &location)) { |
| Zone zone; |
| base::SmartPointer<ParseInfo> info( |
| location.function()->shared()->is_function() |
| ? new ParseInfo(&zone, location.function()) |
| : new ParseInfo(&zone, location.script())); |
| if (Parser::ParseStatic(info.get())) { |
| CallPrinter printer(isolate, location.function()->shared()->IsBuiltin()); |
| const char* string = printer.Print(info->literal(), location.start_pos()); |
| if (strlen(string) > 0) { |
| return isolate->factory()->NewStringFromAsciiChecked(string); |
| } |
| } else { |
| isolate->clear_pending_exception(); |
| } |
| } |
| return Object::TypeOf(isolate, object); |
| } |
| |
| } // namespace |
| |
| |
| RUNTIME_FUNCTION(Runtime_ThrowCalledNonCallable) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(1, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| Handle<String> callsite = RenderCallSite(isolate, object); |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, NewTypeError(MessageTemplate::kCalledNonCallable, callsite)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ThrowConstructedNonConstructable) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(1, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| Handle<String> callsite = RenderCallSite(isolate, object); |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, NewTypeError(MessageTemplate::kNotConstructor, callsite)); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_ThrowDerivedConstructorReturnedNonObject) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(0, args.length()); |
| THROW_NEW_ERROR_RETURN_FAILURE( |
| isolate, NewTypeError(MessageTemplate::kDerivedConstructorReturn)); |
| } |
| |
| |
| // ES6 section 7.3.17 CreateListFromArrayLike (obj) |
| RUNTIME_FUNCTION(Runtime_CreateListFromArrayLike) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(1, args.length()); |
| CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
| Handle<FixedArray> result; |
| ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
| isolate, result, |
| Object::CreateListFromArrayLike(isolate, object, ElementTypes::kAll)); |
| return *result; |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_IncrementUseCounter) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(1, args.length()); |
| CONVERT_SMI_ARG_CHECKED(counter, 0); |
| isolate->CountUsage(static_cast<v8::Isolate::UseCounterFeature>(counter)); |
| return isolate->heap()->undefined_value(); |
| } |
| |
| |
| RUNTIME_FUNCTION(Runtime_GetAndResetRuntimeCallStats) { |
| HandleScope scope(isolate); |
| DCHECK_EQ(0, args.length()); |
| std::stringstream stats_stream; |
| isolate->counters()->runtime_call_stats()->Print(stats_stream); |
| Handle<String> result = |
| isolate->factory()->NewStringFromAsciiChecked(stats_stream.str().c_str()); |
| isolate->counters()->runtime_call_stats()->Reset(); |
| return *result; |
| } |
| |
| } // namespace internal |
| } // namespace v8 |