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ZigGlobalObject.cpp
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ZigGlobalObject.cpp
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#include "root.h"
#include "ZigGlobalObject.h"
#include "helpers.h"
#include "JavaScriptCore/JSImmutableButterfly.h"
#include "wtf/text/Base64.h"
#include "JavaScriptCore/BuiltinNames.h"
#include "JavaScriptCore/CallData.h"
#include "JavaScriptCore/CatchScope.h"
#include "JavaScriptCore/ClassInfo.h"
#include "JavaScriptCore/CodeBlock.h"
#include "JavaScriptCore/Completion.h"
#include "JavaScriptCore/DeferredWorkTimer.h"
#include "JavaScriptCore/Error.h"
#include "JavaScriptCore/ErrorInstance.h"
#include "JavaScriptCore/Exception.h"
#include "JavaScriptCore/ExceptionScope.h"
#include "JavaScriptCore/FunctionConstructor.h"
#include "JavaScriptCore/FunctionPrototype.h"
#include "JavaScriptCore/GetterSetter.h"
#include "JavaScriptCore/GlobalObjectMethodTable.h"
#include "JavaScriptCore/HashMapImpl.h"
#include "JavaScriptCore/HashMapImplInlines.h"
#include "JavaScriptCore/Heap.h"
#include "JavaScriptCore/Identifier.h"
#include "JavaScriptCore/InitializeThreading.h"
#include "JavaScriptCore/InternalFieldTuple.h"
#include "JavaScriptCore/InternalFunction.h"
#include "JavaScriptCore/JSArray.h"
#include "JavaScriptCore/JSCast.h"
#include "JavaScriptCore/JSCJSValue.h"
#include "JavaScriptCore/JSGlobalProxyInlines.h"
#include "JavaScriptCore/JSInternalPromise.h"
#include "JavaScriptCore/JSLock.h"
#include "JavaScriptCore/JSMap.h"
#include "JavaScriptCore/JSMicrotask.h"
#include "JavaScriptCore/JSModuleLoader.h"
#include "JavaScriptCore/JSModuleNamespaceObject.h"
#include "JavaScriptCore/JSModuleNamespaceObjectInlines.h"
#include "JavaScriptCore/JSModuleRecord.h"
#include "JavaScriptCore/JSNativeStdFunction.h"
#include "JavaScriptCore/JSObject.h"
#include "JavaScriptCore/JSObjectInlines.h"
#include "JavaScriptCore/JSPromise.h"
#include "JavaScriptCore/JSScriptFetchParameters.h"
#include "JavaScriptCore/JSSourceCode.h"
#include "JavaScriptCore/JSString.h"
#include "JavaScriptCore/JSWeakMap.h"
#include "JavaScriptCore/LazyClassStructure.h"
#include "JavaScriptCore/LazyClassStructureInlines.h"
#include "JavaScriptCore/ObjectConstructor.h"
#include "JavaScriptCore/ScriptExecutable.h"
#include "JavaScriptCore/ScriptFetchParameters.h"
#include "JavaScriptCore/SourceOrigin.h"
#include "JavaScriptCore/StackFrame.h"
#include "JavaScriptCore/StackVisitor.h"
#include "JavaScriptCore/VM.h"
#include "AddEventListenerOptions.h"
#include "AsyncContextFrame.h"
#include "BunClientData.h"
#include "BunClientData.h"
#include "BunObject.h"
#include "BunPlugin.h"
#include "BunProcess.h"
#include "BunWorkerGlobalScope.h"
#include "CallSite.h"
#include "CallSitePrototype.h"
#include "CommonJSModuleRecord.h"
#include "ConsoleObject.h"
#include "DOMWrapperWorld-class.h"
#include "ErrorStackTrace.h"
#include "IDLTypes.h"
#include "ImportMetaObject.h"
#include "JS2Native.h"
#include "JSAbortAlgorithm.h"
#include "JSAbortController.h"
#include "JSAbortSignal.h"
#include "JSBroadcastChannel.h"
#include "JSBuffer.h"
#include "JSBufferList.h"
#include "JSByteLengthQueuingStrategy.h"
#include "JSCloseEvent.h"
#include "JSCountQueuingStrategy.h"
#include "JSCustomEvent.h"
#include "JSDOMConvertBase.h"
#include "JSDOMConvertUnion.h"
#include "JSDOMException.h"
#include "JSDOMFile.h"
#include "JSDOMFormData.h"
#include "JSDOMURL.h"
#include "JSEnvironmentVariableMap.h"
#include "JSErrorEvent.h"
#include "JSEvent.h"
#include "JSEventEmitter.h"
#include "JSEventListener.h"
#include "JSEventTarget.h"
#include "JSFetchHeaders.h"
#include "JSFFIFunction.h"
#include "JSMessageChannel.h"
#include "JSMessageEvent.h"
#include "JSMessagePort.h"
#include "JSNextTickQueue.h"
#include "JSPerformance.h"
#include "JSPerformanceEntry.h"
#include "JSPerformanceMark.h"
#include "JSPerformanceMeasure.h"
#include "JSPerformanceObserver.h"
#include "JSPerformanceObserverEntryList.h"
#include "JSReadableByteStreamController.h"
#include "JSReadableStream.h"
#include "JSReadableStreamBYOBReader.h"
#include "JSReadableStreamBYOBRequest.h"
#include "JSReadableStreamDefaultController.h"
#include "JSReadableStreamDefaultReader.h"
#include "JSSink.h"
#include "JSSocketAddress.h"
#include "JSSQLStatement.h"
#include "JSStringDecoder.h"
#include "JSTextEncoder.h"
#include "JSTransformStream.h"
#include "JSTransformStreamDefaultController.h"
#include "JSURLSearchParams.h"
#include "JSWebSocket.h"
#include "JSWorker.h"
#include "JSWritableStream.h"
#include "JSWritableStreamDefaultController.h"
#include "JSWritableStreamDefaultWriter.h"
#include "libusockets.h"
#include "ModuleLoader.h"
#include "napi_external.h"
#include "napi.h"
#include "NodeHTTP.h"
#include "NodeVM.h"
#include "Performance.h"
#include "ProcessBindingConstants.h"
#include "ProcessBindingTTYWrap.h"
#include "ProcessIdentifier.h"
#include "ReadableStream.h"
#include "SerializedScriptValue.h"
#include "StructuredClone.h"
#include "WebCoreJSBuiltins.h"
#include "webcrypto/JSCryptoKey.h"
#include "webcrypto/JSSubtleCrypto.h"
#include "ZigGeneratedClasses.h"
#include "ZigSourceProvider.h"
#include "UtilInspect.h"
#include "Base64Helpers.h"
#include "wtf/text/OrdinalNumber.h"
#if ENABLE(REMOTE_INSPECTOR)
#include "JavaScriptCore/RemoteInspectorServer.h"
#endif
#if !OS(WINDOWS)
#include <dlfcn.h>
#endif
#ifdef __APPLE__
#include <sys/sysctl.h>
#elif defined(__linux__)
// for sysconf
#include <unistd.h>
#endif
using namespace Bun;
extern "C" JSC__JSValue Bun__NodeUtil__jsParseArgs(JSC::JSGlobalObject*, JSC::CallFrame*);
extern "C" JSC::EncodedJSValue Bun__fetch(JSC::JSGlobalObject* lexicalGlobalObject, JSC::CallFrame* callFrame);
extern "C" JSC::EncodedJSValue H2FrameParser__getConstructor(Zig::GlobalObject* globalObject);
extern "C" JSC::EncodedJSValue BUN__HTTP2__getUnpackedSettings(JSC::JSGlobalObject* lexicalGlobalObject, JSC::CallFrame* callFrame);
extern "C" JSC::EncodedJSValue BUN__HTTP2_getPackedSettings(JSC::JSGlobalObject* lexicalGlobalObject, JSC::CallFrame* callFrame);
using JSGlobalObject
= JSC::JSGlobalObject;
using Exception = JSC::Exception;
using JSValue = JSC::JSValue;
using JSString = JSC::JSString;
using JSModuleLoader = JSC::JSModuleLoader;
using JSModuleRecord = JSC::JSModuleRecord;
using Identifier = JSC::Identifier;
using SourceOrigin = JSC::SourceOrigin;
using JSObject = JSC::JSObject;
using JSNonFinalObject = JSC::JSNonFinalObject;
namespace JSCastingHelpers = JSC::JSCastingHelpers;
constexpr size_t DEFAULT_ERROR_STACK_TRACE_LIMIT = 10;
// #include <iostream>
static bool has_loaded_jsc = false;
Structure* createMemoryFootprintStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject);
extern "C" WebCore::Worker* WebWorker__getParentWorker(void*);
extern "C" void JSCInitialize(const char* envp[], size_t envc, void (*onCrash)(const char* ptr, size_t length))
{
// NOLINTBEGIN
if (has_loaded_jsc)
return;
has_loaded_jsc = true;
JSC::Config::enableRestrictedOptions();
std::set_terminate([]() { Zig__GlobalObject__onCrash(); });
WTF::initializeMainThread();
JSC::initialize();
{
JSC::Options::AllowUnfinalizedAccessScope scope;
JSC::Options::useConcurrentJIT() = true;
// JSC::Options::useSigillCrashAnalyzer() = true;
JSC::Options::useWebAssembly() = true;
JSC::Options::useSourceProviderCache() = true;
// JSC::Options::useUnlinkedCodeBlockJettisoning() = false;
JSC::Options::exposeInternalModuleLoader() = true;
JSC::Options::useSharedArrayBuffer() = true;
JSC::Options::useJIT() = true;
JSC::Options::useBBQJIT() = true;
JSC::Options::useJITCage() = false;
JSC::Options::useShadowRealm() = true;
JSC::Options::useResizableArrayBuffer() = true;
JSC::Options::usePromiseWithResolversMethod() = true;
JSC::Options::useV8DateParser() = true;
#ifdef BUN_DEBUG
JSC::Options::showPrivateScriptsInStackTraces() = true;
#endif
JSC::Options::useSetMethods() = true;
if (LIKELY(envc > 0)) {
while (envc--) {
const char* env = (const char*)envp[envc];
// need to check for \0 so we might as well make this single pass
// strlen would check the end of the string
if (LIKELY(!(env[0] == 'B' && env[1] == 'U' && env[2] == 'N' && env[3] == '_' && env[4] == 'J' && env[5] == 'S' && env[6] == 'C' && env[7] == '_'))) {
continue;
}
if (UNLIKELY(!JSC::Options::setOption(env + 8))) {
onCrash(env, strlen(env));
}
}
}
JSC::Options::assertOptionsAreCoherent();
}
// NOLINTEND
}
extern "C" void* Bun__getVM();
extern "C" Zig::GlobalObject* Bun__getDefaultGlobal();
// Error.captureStackTrace may cause computeErrorInfo to be called twice
// Rather than figure out the plumbing in JSC, we just skip the next call
// TODO: thread_local for workers
static bool skipNextComputeErrorInfo = false;
static JSValue formatStackTraceToJSValue(JSC::VM& vm, Zig::GlobalObject* globalObject, JSC::JSGlobalObject* lexicalGlobalObject, JSC::JSObject* errorObject, JSC::JSArray* callSites, JSValue prepareStackTrace)
{
auto scope = DECLARE_THROW_SCOPE(vm);
auto* errorConstructor = lexicalGlobalObject->m_errorStructure.constructor(globalObject);
if (!prepareStackTrace) {
if (lexicalGlobalObject->inherits<Zig::GlobalObject>()) {
if (auto prepare = globalObject->m_errorConstructorPrepareStackTraceValue.get()) {
prepareStackTrace = prepare;
}
} else {
prepareStackTrace = errorConstructor->getIfPropertyExists(lexicalGlobalObject, JSC::Identifier::fromString(vm, "prepareStackTrace"_s));
}
}
// default formatting
size_t framesCount = callSites->length();
WTF::StringBuilder sb;
if (JSC::JSValue errorMessage = errorObject->getIfPropertyExists(lexicalGlobalObject, vm.propertyNames->message)) {
auto* str = errorMessage.toString(lexicalGlobalObject);
if (str->length() > 0) {
sb.append("Error: "_s);
sb.append(str->value(lexicalGlobalObject));
} else {
sb.append("Error"_s);
}
} else {
sb.append("Error"_s);
}
if (framesCount > 0) {
sb.append("\n"_s);
}
for (size_t i = 0; i < framesCount; i++) {
JSC::JSValue callSiteValue = callSites->getIndex(lexicalGlobalObject, i);
CallSite* callSite = JSC::jsDynamicCast<CallSite*>(callSiteValue);
sb.append(" at "_s);
callSite->formatAsString(vm, lexicalGlobalObject, sb);
if (i != framesCount - 1) {
sb.append("\n"_s);
}
}
bool originalSkipNextComputeErrorInfo = skipNextComputeErrorInfo;
skipNextComputeErrorInfo = true;
if (errorObject->hasProperty(lexicalGlobalObject, vm.propertyNames->stack)) {
skipNextComputeErrorInfo = true;
errorObject->deleteProperty(lexicalGlobalObject, vm.propertyNames->stack);
}
skipNextComputeErrorInfo = originalSkipNextComputeErrorInfo;
JSValue stackStringValue = jsString(vm, sb.toString());
if (prepareStackTrace && prepareStackTrace.isObject()) {
JSC::CallData prepareStackTraceCallData = JSC::getCallData(prepareStackTrace);
if (prepareStackTraceCallData.type != JSC::CallData::Type::None) {
// In Node, if you console.log(error.stack) inside Error.prepareStackTrace
// it will display the stack as a formatted string, so we have to do the same.
errorObject->putDirect(vm, vm.propertyNames->stack, stackStringValue, 0);
JSC::MarkedArgumentBuffer arguments;
arguments.append(errorObject);
arguments.append(callSites);
JSC::JSValue result = profiledCall(
lexicalGlobalObject,
JSC::ProfilingReason::Other,
prepareStackTrace,
prepareStackTraceCallData,
errorConstructor,
arguments);
RETURN_IF_EXCEPTION(scope, {});
if (result.isUndefinedOrNull()) {
result = jsUndefined();
}
return result;
}
}
return stackStringValue;
}
WTF::String Bun::formatStackTrace(
JSC::VM& vm,
JSC::JSGlobalObject* globalObject,
const WTF::String& name,
const WTF::String& message,
OrdinalNumber& line,
OrdinalNumber& column,
WTF::String& sourceURL,
Vector<JSC::StackFrame>& stackTrace,
JSC::JSObject* errorInstance)
{
WTF::StringBuilder sb;
if (!name.isEmpty()) {
sb.append(name);
if (!message.isEmpty()) {
sb.append(": "_s);
sb.append(message);
}
} else if (!message.isEmpty()) {
sb.append(message);
}
// FIXME: why can size == 6 and capacity == 0?
// https://discord.com/channels/876711213126520882/1174901590457585765/1174907969419350036
size_t framesCount = stackTrace.size();
bool hasSet = false;
if (errorInstance) {
if (JSC::ErrorInstance* err = jsDynamicCast<JSC::ErrorInstance*>(errorInstance)) {
if (err->errorType() == ErrorType::SyntaxError && (stackTrace.isEmpty() || stackTrace.at(0).sourceURL(vm) != err->sourceURL())) {
// There appears to be an off-by-one error.
// The following reproduces the issue:
// /* empty comment */
// "".test(/[a-0]/);
auto originalLine = WTF::OrdinalNumber::fromOneBasedInt(err->line());
ZigStackFrame remappedFrame = {};
memset(&remappedFrame, 0, sizeof(ZigStackFrame));
remappedFrame.position.line_zero_based = originalLine.zeroBasedInt();
remappedFrame.position.column_zero_based = 0;
String sourceURLForFrame = err->sourceURL();
// If it's not a Zig::GlobalObject, don't bother source-mapping it.
if (globalObject && !sourceURLForFrame.isEmpty()) {
if (!sourceURLForFrame.isEmpty()) {
remappedFrame.source_url = Bun::toString(sourceURLForFrame);
} else {
// https://github.com/oven-sh/bun/issues/3595
remappedFrame.source_url = BunStringEmpty;
}
// This ensures the lifetime of the sourceURL is accounted for correctly
Bun__remapStackFramePositions(globalObject, &remappedFrame, 1);
}
// there is always a newline before each stack frame line, ensuring that the name + message
// exist on the first line, even if both are empty
sb.append("\n"_s);
sb.append(" at <parse> ("_s);
sb.append(remappedFrame.source_url.toWTFString());
if (remappedFrame.remapped) {
errorInstance->putDirect(vm, builtinNames(vm).originalLinePublicName(), jsNumber(originalLine.oneBasedInt()), 0);
hasSet = true;
line = remappedFrame.position.line();
}
if (remappedFrame.remapped) {
sb.append(":"_s);
sb.append(remappedFrame.position.line().oneBasedInt());
} else {
sb.append(":"_s);
sb.append(originalLine.oneBasedInt());
}
sb.append(")"_s);
}
}
}
if (framesCount == 0) {
ASSERT(stackTrace.isEmpty());
return sb.toString();
}
sb.append("\n"_s);
for (size_t i = 0; i < framesCount; i++) {
StackFrame& frame = stackTrace.at(i);
sb.append(" at "_s);
WTF::String functionName;
if (auto codeblock = frame.codeBlock()) {
if (codeblock->isConstructor()) {
sb.append("new "_s);
}
// We cannot run this in FinalizeUnconditionally, as we cannot call getters there
// We check the errorInstance to see if we are allowed to access this memory.
if (errorInstance) {
switch (codeblock->codeType()) {
case JSC::CodeType::FunctionCode:
case JSC::CodeType::EvalCode: {
if (auto* callee = frame.callee()) {
if (callee->isObject()) {
JSValue functionNameValue = callee->getObject()->getDirect(vm, vm.propertyNames->name);
if (functionNameValue && functionNameValue.isString()) {
functionName = functionNameValue.toWTFString(globalObject);
}
}
}
break;
}
default: {
break;
}
}
}
}
if (functionName.isEmpty()) {
functionName = frame.functionName(vm);
}
if (functionName.isEmpty()) {
sb.append("<anonymous>"_s);
} else {
sb.append(functionName);
}
if (frame.hasLineAndColumnInfo()) {
ZigStackFrame remappedFrame = {};
LineColumn lineColumn = frame.computeLineAndColumn();
OrdinalNumber originalLine = OrdinalNumber::fromOneBasedInt(lineColumn.line);
OrdinalNumber originalColumn = OrdinalNumber::fromOneBasedInt(lineColumn.column);
remappedFrame.position.line_zero_based = originalLine.zeroBasedInt();
remappedFrame.position.column_zero_based = originalColumn.zeroBasedInt();
String sourceURLForFrame = frame.sourceURL(vm);
// If it's not a Zig::GlobalObject, don't bother source-mapping it.
if (globalObject) {
if (!sourceURLForFrame.isEmpty()) {
remappedFrame.source_url = Bun::toString(sourceURLForFrame);
} else {
// https://github.com/oven-sh/bun/issues/3595
remappedFrame.source_url = BunStringEmpty;
}
// This ensures the lifetime of the sourceURL is accounted for correctly
Bun__remapStackFramePositions(globalObject, &remappedFrame, 1);
}
if (!hasSet) {
hasSet = true;
line = remappedFrame.position.line();
column = remappedFrame.position.column();
sourceURL = frame.sourceURL(vm);
if (remappedFrame.remapped) {
if (errorInstance) {
errorInstance->putDirect(vm, builtinNames(vm).originalLinePublicName(), jsNumber(originalLine.oneBasedInt()), 0);
errorInstance->putDirect(vm, builtinNames(vm).originalColumnPublicName(), jsNumber(originalColumn.oneBasedInt()), 0);
}
}
}
sb.append(" ("_s);
sb.append(sourceURLForFrame);
sb.append(":"_s);
sb.append(remappedFrame.position.line().oneBasedInt());
sb.append(":"_s);
sb.append(remappedFrame.position.column().oneBasedInt());
sb.append(")"_s);
} else {
sb.append(" (native)"_s);
}
if (i != framesCount - 1) {
sb.append("\n"_s);
}
}
return sb.toString();
}
// error.stack calls this function
static String computeErrorInfoWithoutPrepareStackTrace(
JSC::VM& vm,
Zig::GlobalObject* globalObject,
Vector<StackFrame>& stackTrace,
OrdinalNumber& line,
OrdinalNumber& column,
String& sourceURL,
JSObject* errorInstance)
{
WTF::String name = "Error"_s;
WTF::String message;
if (errorInstance) {
// Note that we are not allowed to allocate memory in here. It's called inside a finalizer.
if (auto* instance = jsDynamicCast<ErrorInstance*>(errorInstance)) {
auto* lexicalGlobalObject = errorInstance->globalObject();
name = instance->sanitizedNameString(lexicalGlobalObject);
message = instance->sanitizedMessageString(lexicalGlobalObject);
}
}
if (UNLIKELY(!globalObject)) {
globalObject = Bun__getDefaultGlobal();
}
return Bun::formatStackTrace(vm, globalObject, name, message, line, column, sourceURL, stackTrace, errorInstance);
}
static String computeErrorInfoWithPrepareStackTrace(JSC::VM& vm, Zig::GlobalObject* globalObject, JSC::JSGlobalObject* lexicalGlobalObject, Vector<StackFrame>& stackFrames, OrdinalNumber& line, OrdinalNumber& column, String& sourceURL, JSObject* errorObject, JSObject* prepareStackTrace)
{
auto scope = DECLARE_THROW_SCOPE(vm);
JSCStackTrace stackTrace = JSCStackTrace::fromExisting(vm, stackFrames);
// Note: we cannot use tryCreateUninitializedRestricted here because we cannot allocate memory inside initializeIndex()
JSC::JSArray* callSites = JSC::JSArray::create(vm,
globalObject->arrayStructureForIndexingTypeDuringAllocation(JSC::ArrayWithContiguous),
stackTrace.size());
// Create the call sites (one per frame)
GlobalObject::createCallSitesFromFrames(globalObject, lexicalGlobalObject, stackTrace, callSites);
// We need to sourcemap it if it's a GlobalObject.
if (globalObject == lexicalGlobalObject) {
size_t framesCount = stackTrace.size();
ZigStackFrame remappedFrames[framesCount];
for (int i = 0; i < framesCount; i++) {
remappedFrames[i] = {};
remappedFrames[i].source_url = Bun::toString(lexicalGlobalObject, stackTrace.at(i).sourceURL());
if (JSCStackFrame::SourcePositions* sourcePositions = stackTrace.at(i).getSourcePositions()) {
remappedFrames[i].position.line_zero_based = sourcePositions->line.zeroBasedInt();
remappedFrames[i].position.column_zero_based = sourcePositions->column.zeroBasedInt();
} else {
remappedFrames[i].position.line_zero_based = -1;
remappedFrames[i].position.column_zero_based = -1;
}
}
Bun__remapStackFramePositions(globalObject, remappedFrames, framesCount);
for (size_t i = 0; i < framesCount; i++) {
JSC::JSValue callSiteValue = callSites->getIndex(lexicalGlobalObject, i);
CallSite* callSite = JSC::jsDynamicCast<CallSite*>(callSiteValue);
if (remappedFrames[i].remapped) {
callSite->setColumnNumber(remappedFrames[i].position.column());
callSite->setLineNumber(remappedFrames[i].position.line());
}
}
}
JSValue value = formatStackTraceToJSValue(vm, jsDynamicCast<Zig::GlobalObject*>(lexicalGlobalObject), lexicalGlobalObject, errorObject, callSites, prepareStackTrace);
RETURN_IF_EXCEPTION(scope, String());
if (errorObject && !value.isEmpty()) {
errorObject->putDirect(vm, vm.propertyNames->stack, value, 0);
}
if (value.isString()) {
return value.toWTFString(lexicalGlobalObject);
}
return String();
}
static String computeErrorInfo(JSC::VM& vm, Vector<StackFrame>& stackTrace, OrdinalNumber& line, OrdinalNumber& column, String& sourceURL, JSObject* errorInstance)
{
if (skipNextComputeErrorInfo) {
return String();
}
Zig::GlobalObject* globalObject = nullptr;
if (errorInstance) {
auto* lexicalGlobalObject = errorInstance->globalObject();
globalObject = jsDynamicCast<Zig::GlobalObject*>(lexicalGlobalObject);
// Error.prepareStackTrace - https://v8.dev/docs/stack-trace-api#customizing-stack-traces
if (!globalObject) {
// node:vm will use a different JSGlobalObject
globalObject = Bun__getDefaultGlobal();
auto* errorConstructor = lexicalGlobalObject->m_errorStructure.constructor(lexicalGlobalObject);
if (JSValue prepareStackTrace = errorConstructor->getIfPropertyExists(lexicalGlobalObject, Identifier::fromString(vm, "prepareStackTrace"_s))) {
if (prepareStackTrace.isCell() && prepareStackTrace.isObject() && prepareStackTrace.isCallable()) {
return computeErrorInfoWithPrepareStackTrace(vm, globalObject, lexicalGlobalObject, stackTrace, line, column, sourceURL, errorInstance, prepareStackTrace.getObject());
}
}
} else {
if (JSValue prepareStackTrace = globalObject->m_errorConstructorPrepareStackTraceValue.get()) {
if (prepareStackTrace.isCell() && prepareStackTrace.isObject() && prepareStackTrace.isCallable()) {
return computeErrorInfoWithPrepareStackTrace(vm, globalObject, lexicalGlobalObject, stackTrace, line, column, sourceURL, errorInstance, prepareStackTrace.getObject());
}
}
}
}
return computeErrorInfoWithoutPrepareStackTrace(vm, globalObject, stackTrace, line, column, sourceURL, errorInstance);
}
// TODO: @paperdave: remove this wrapper and make the WTF::Function from JavaScriptCore expeect OrdinalNumber instead of unsigned.
static String computeErrorInfoWrapper(JSC::VM& vm, Vector<StackFrame>& stackTrace, unsigned int& line_in, unsigned int& column_in, String& sourceURL, JSObject* errorInstance)
{
OrdinalNumber line = OrdinalNumber::fromOneBasedInt(line_in);
OrdinalNumber column = OrdinalNumber::fromOneBasedInt(column_in);
WTF::String result = computeErrorInfo(vm, stackTrace, line, column, sourceURL, errorInstance);
line_in = line.oneBasedInt();
column_in = column.oneBasedInt();
return result;
}
static void checkIfNextTickWasCalledDuringMicrotask(JSC::VM& vm)
{
auto* globalObject = Bun__getDefaultGlobal();
if (auto nextTickQueueValue = globalObject->m_nextTickQueue.get()) {
auto* queue = jsCast<Bun::JSNextTickQueue*>(nextTickQueueValue);
globalObject->resetOnEachMicrotaskTick();
queue->drain(vm, globalObject);
}
}
static void cleanupAsyncHooksData(JSC::VM& vm)
{
auto* globalObject = Bun__getDefaultGlobal();
globalObject->m_asyncContextData.get()->putInternalField(vm, 0, jsUndefined());
globalObject->asyncHooksNeedsCleanup = false;
if (!globalObject->m_nextTickQueue) {
vm.setOnEachMicrotaskTick(&checkIfNextTickWasCalledDuringMicrotask);
checkIfNextTickWasCalledDuringMicrotask(vm);
} else {
vm.setOnEachMicrotaskTick(nullptr);
}
}
void Zig::GlobalObject::resetOnEachMicrotaskTick()
{
JSC::VM& vm = this->vm();
if (this->asyncHooksNeedsCleanup) {
vm.setOnEachMicrotaskTick(&cleanupAsyncHooksData);
} else {
if (this->m_nextTickQueue) {
vm.setOnEachMicrotaskTick(nullptr);
} else {
vm.setOnEachMicrotaskTick(&checkIfNextTickWasCalledDuringMicrotask);
}
}
}
extern "C" JSC__JSGlobalObject* Zig__GlobalObject__create(void* console_client, int32_t executionContextId, bool miniMode, bool evalMode, void* worker_ptr)
{
auto heapSize = miniMode ? JSC::HeapType::Small : JSC::HeapType::Large;
JSC::VM& vm = JSC::VM::create(heapSize).leakRef();
// This must happen before JSVMClientData::create
vm.heap.acquireAccess();
JSC::JSLockHolder locker(vm);
WebCore::JSVMClientData::create(&vm, Bun__getVM());
Zig::GlobalObject* globalObject;
if (UNLIKELY(executionContextId > -1)) {
globalObject = Zig::GlobalObject::create(
vm,
Zig::GlobalObject::createStructure(vm, JSC::JSGlobalObject::create(vm, JSC::JSGlobalObject::createStructure(vm, JSC::jsNull())), JSC::jsNull()),
static_cast<ScriptExecutionContextIdentifier>(executionContextId));
if (auto* worker = static_cast<WebCore::Worker*>(worker_ptr)) {
auto& options = worker->options();
// ensure remote termination works.
vm.ensureTerminationException();
vm.forbidExecutionOnTermination();
if (options.bun.env) {
auto map = WTFMove(options.bun.env);
auto size = map->size();
auto env = JSC::constructEmptyObject(globalObject, globalObject->objectPrototype(), size >= JSFinalObject::maxInlineCapacity ? JSFinalObject::maxInlineCapacity : size);
for (auto k : *map) {
env->putDirect(vm, JSC::Identifier::fromString(vm, WTFMove(k.key)), JSC::jsString(vm, WTFMove(k.value)));
}
map->clear();
globalObject->m_processEnvObject.set(vm, globalObject, env);
}
}
} else if (evalMode) {
globalObject = Zig::EvalGlobalObject::create(
vm,
Zig::EvalGlobalObject::createStructure(vm, JSC::JSGlobalObject::create(vm, JSC::JSGlobalObject::createStructure(vm, JSC::jsNull())),
JSC::jsNull()),
&Zig::EvalGlobalObject::s_globalObjectMethodTable);
} else {
globalObject = Zig::GlobalObject::create(
vm,
Zig::GlobalObject::createStructure(vm, JSC::JSGlobalObject::create(vm, JSC::JSGlobalObject::createStructure(vm, JSC::jsNull())),
JSC::jsNull()));
}
globalObject->setConsole(console_client);
globalObject->isThreadLocalDefaultGlobalObject = true;
globalObject->setStackTraceLimit(DEFAULT_ERROR_STACK_TRACE_LIMIT); // Node.js defaults to 10
vm.setOnComputeErrorInfo(computeErrorInfoWrapper);
JSC::gcProtect(globalObject);
vm.setOnEachMicrotaskTick([](JSC::VM& vm) -> void {
auto* globalObject = Bun__getDefaultGlobal();
if (auto nextTickQueue = globalObject->m_nextTickQueue.get()) {
globalObject->resetOnEachMicrotaskTick();
Bun::JSNextTickQueue* queue = jsCast<Bun::JSNextTickQueue*>(nextTickQueue);
queue->drain(vm, globalObject);
return;
}
});
return globalObject;
}
JSC_DEFINE_HOST_FUNCTION(functionFulfillModuleSync,
(JSC::JSGlobalObject * lexicalGlobalObject, JSC::CallFrame* callFrame))
{
Zig::GlobalObject* globalObject = jsCast<Zig::GlobalObject*>(lexicalGlobalObject);
auto& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSC::JSValue key = callFrame->argument(0);
auto moduleKey = key.toWTFString(globalObject);
RETURN_IF_EXCEPTION(scope, JSValue::encode(JSC::jsUndefined()));
if (moduleKey.endsWith(".node"_s)) {
throwException(globalObject, scope, createTypeError(globalObject, "To load Node-API modules, use require() or process.dlopen instead of importSync."_s));
return JSValue::encode(JSC::jsUndefined());
}
auto specifier = Bun::toString(moduleKey);
ErrorableResolvedSource res;
res.success = false;
res.result.err.code = 0;
res.result.err.ptr = nullptr;
JSValue result = Bun::fetchESMSourceCodeSync(
globalObject,
key,
&res,
&specifier,
&specifier,
nullptr);
if (scope.exception() || !result) {
RELEASE_AND_RETURN(scope, JSValue::encode(JSC::jsUndefined()));
}
globalObject->moduleLoader()->provideFetch(globalObject, key, jsCast<JSC::JSSourceCode*>(result)->sourceCode());
RELEASE_AND_RETURN(scope, JSValue::encode(JSC::jsUndefined()));
}
extern "C" void* Zig__GlobalObject__getModuleRegistryMap(JSC__JSGlobalObject* arg0)
{
if (JSC::JSObject* loader = JSC::jsDynamicCast<JSC::JSObject*>(arg0->moduleLoader())) {
JSC::JSMap* map = JSC::jsDynamicCast<JSC::JSMap*>(
loader->getDirect(arg0->vm(), JSC::Identifier::fromString(arg0->vm(), "registry"_s)));
JSC::JSMap* cloned = map->clone(arg0, arg0->vm(), arg0->mapStructure());
JSC::gcProtect(cloned);
return cloned;
}
return nullptr;
}
extern "C" bool Zig__GlobalObject__resetModuleRegistryMap(JSC__JSGlobalObject* globalObject,
void* map_ptr)
{
if (map_ptr == nullptr)
return false;
JSC::JSMap* map = reinterpret_cast<JSC::JSMap*>(map_ptr);
JSC::VM& vm = globalObject->vm();
if (JSC::JSObject* obj = JSC::jsDynamicCast<JSC::JSObject*>(globalObject->moduleLoader())) {
auto identifier = JSC::Identifier::fromString(globalObject->vm(), "registry"_s);
if (JSC::JSMap* oldMap = JSC::jsDynamicCast<JSC::JSMap*>(
obj->getDirect(globalObject->vm(), identifier))) {
vm.finalizeSynchronousJSExecution();
obj->putDirect(globalObject->vm(), identifier,
map->clone(globalObject, globalObject->vm(), globalObject->mapStructure()));
// vm.deleteAllLinkedCode(JSC::DeleteAllCodeEffort::DeleteAllCodeIfNotCollecting);
// JSC::Heap::PreventCollectionScope(vm.heap);
oldMap->clear(vm);
JSC::gcUnprotect(oldMap);
// vm.heap.completeAllJITPlans();
// vm.forEachScriptExecutableSpace([&](auto &spaceAndSet) {
// JSC::HeapIterationScope heapIterationScope(vm.heap);
// auto &set = spaceAndSet.set;
// set.forEachLiveCell([&](JSC::HeapCell *cell, JSC::HeapCell::Kind) {
// if (JSC::ModuleProgramExecutable *executable =
// JSC::jsDynamicCast<JSC::ModuleProgramExecutable *>(cell)) {
// executable->clearCode(set);
// }
// });
// });
// globalObject->vm().heap.deleteAllUnlinkedCodeBlocks(
// JSC::DeleteAllCodeEffort::PreventCollectionAndDeleteAllCode);
}
}
// map
// }
return true;
}
#define WEBCORE_GENERATED_CONSTRUCTOR_GETTER(ConstructorName) \
JSValue ConstructorName##ConstructorCallback(VM& vm, JSObject* lexicalGlobalObject) \
{ \
return WebCore::JS##ConstructorName::getConstructor(vm, JSC::jsCast<Zig::GlobalObject*>(lexicalGlobalObject)); \
} \
JSC_DEFINE_CUSTOM_GETTER(ConstructorName##_getter, \
(JSC::JSGlobalObject * lexicalGlobalObject, JSC::EncodedJSValue thisValue, \
JSC::PropertyName)) \
{ \
return JSC::JSValue::encode(WebCore::JS##ConstructorName::getConstructor(lexicalGlobalObject->vm(), JSC::jsCast<Zig::GlobalObject*>(lexicalGlobalObject))); \
}
String GlobalObject::defaultAgentClusterID()
{
return makeString(ProcessIdent::identifier().toUInt64(), "-default"_s);
}
String GlobalObject::agentClusterID() const
{
// TODO: workers
// if (is<SharedWorkerGlobalScope>(scriptExecutionContext()))
// return makeString(WProcess::identifier().toUInt64(), "-sharedworker");
return defaultAgentClusterID();
}
namespace Zig {
using namespace WebCore;
static JSGlobalObject* deriveShadowRealmGlobalObject(JSGlobalObject* globalObject)
{
auto& vm = globalObject->vm();
Zig::GlobalObject* shadow = Zig::GlobalObject::create(vm, Zig::GlobalObject::createStructure(vm, JSC::JSGlobalObject::create(vm, JSC::JSGlobalObject::createStructure(vm, JSC::jsNull())), JSC::jsNull()));
shadow->setConsole(shadow);
return shadow;
}
extern "C" int Bun__VM__scriptExecutionStatus(void*);
JSC::ScriptExecutionStatus Zig::GlobalObject::scriptExecutionStatus(JSC::JSGlobalObject* globalObject, JSC::JSObject*)
{
switch (Bun__VM__scriptExecutionStatus(jsCast<Zig::GlobalObject*>(globalObject)->bunVM())) {
case 0:
return JSC::ScriptExecutionStatus::Running;
case 1:
return JSC::ScriptExecutionStatus::Suspended;
case 2:
return JSC::ScriptExecutionStatus::Stopped;
default: {
RELEASE_ASSERT_NOT_REACHED();
}
}
}
const JSC::GlobalObjectMethodTable GlobalObject::s_globalObjectMethodTable = {
&supportsRichSourceInfo,
&shouldInterruptScript,
&javaScriptRuntimeFlags,
// &queueMicrotaskToEventLoop, // queueTaskToEventLoop
nullptr,
nullptr, // &shouldInterruptScriptBeforeTimeout,
&moduleLoaderImportModule, // moduleLoaderImportModule
&moduleLoaderResolve, // moduleLoaderResolve
&moduleLoaderFetch, // moduleLoaderFetch
&moduleLoaderCreateImportMetaProperties, // moduleLoaderCreateImportMetaProperties
&moduleLoaderEvaluate, // moduleLoaderEvaluate
&promiseRejectionTracker, // promiseRejectionTracker
&reportUncaughtExceptionAtEventLoop,
¤tScriptExecutionOwner,
&scriptExecutionStatus,
nullptr, // reportViolationForUnsafeEval
nullptr, // defaultLanguage
nullptr, // compileStreaming
nullptr, // instantiateStreaming
&Zig::deriveShadowRealmGlobalObject
};
const JSC::GlobalObjectMethodTable EvalGlobalObject::s_globalObjectMethodTable = {
&supportsRichSourceInfo,
&shouldInterruptScript,
&javaScriptRuntimeFlags,
// &queueMicrotaskToEventLoop, // queueTaskToEventLoop
nullptr,
nullptr, // &shouldInterruptScriptBeforeTimeout,
&moduleLoaderImportModule, // moduleLoaderImportModule
&moduleLoaderResolve, // moduleLoaderResolve
&moduleLoaderFetch, // moduleLoaderFetch
&moduleLoaderCreateImportMetaProperties, // moduleLoaderCreateImportMetaProperties
&moduleLoaderEvaluate, // moduleLoaderEvaluate
&promiseRejectionTracker, // promiseRejectionTracker
&reportUncaughtExceptionAtEventLoop,
¤tScriptExecutionOwner,
&scriptExecutionStatus,
nullptr, // reportViolationForUnsafeEval
nullptr, // defaultLanguage
nullptr, // compileStreaming
nullptr, // instantiateStreaming
&Zig::deriveShadowRealmGlobalObject
};
GlobalObject::GlobalObject(JSC::VM& vm, JSC::Structure* structure, const JSC::GlobalObjectMethodTable* methodTable)
: JSC::JSGlobalObject(vm, structure, methodTable)
, m_bunVM(Bun__getVM())
, m_constructors(makeUnique<WebCore::DOMConstructors>())
, m_world(WebCore::DOMWrapperWorld::create(vm, WebCore::DOMWrapperWorld::Type::Normal))
, m_worldIsNormal(true)
, m_builtinInternalFunctions(vm)
, m_scriptExecutionContext(new WebCore::ScriptExecutionContext(&vm, this))
, globalEventScope(*new Bun::GlobalScope(m_scriptExecutionContext))
{
// m_scriptExecutionContext = globalEventScope.m_context;
mockModule = Bun::JSMockModule::create(this);
globalEventScope.m_context = m_scriptExecutionContext;
// FIXME: is there a better way to do this? this event handler should always be tied to the global object
globalEventScope.relaxAdoptionRequirement();