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#pragma once
namespace WebCore {
class ExtendedDOMClientIsoSubspaces;
class ExtendedDOMIsoSubspaces;
class DOMWrapperWorld;
}
#include "root.h"
#include "ExtendedDOMClientIsoSubspaces.h"
#include "ExtendedDOMIsoSubspaces.h"
#include "DOMIsoSubspaces.h"
// #include "DOMWrapperWorld.h"
#include "BunBuiltinNames.h"
// #include "WebCoreJSBuiltins.h"
// #include "WorkerThreadType.h"
#include "wtf/Function.h"
#include "wtf/HashSet.h"
#include "wtf/RefPtr.h"
#include "JavaScriptCore/WeakInlines.h"
#include "JavaScriptCore/IsoSubspacePerVM.h"
#include "wtf/StdLibExtras.h"
#include "WebCoreJSBuiltins.h"
namespace Zig {
}
namespace WebCore {
using namespace JSC;
using namespace Zig;
enum class UseCustomHeapCellType { Yes,
No };
class JSHeapData {
WTF_MAKE_NONCOPYABLE(JSHeapData);
WTF_MAKE_FAST_ALLOCATED;
friend class JSVMClientData;
public:
JSHeapData(JSC::Heap&);
static JSHeapData* ensureHeapData(JSC::Heap&);
Lock& lock() { return m_lock; }
ExtendedDOMIsoSubspaces& subspaces() { return *m_subspaces.get(); }
Vector<JSC::IsoSubspace*>& outputConstraintSpaces() { return m_outputConstraintSpaces; }
template<typename Func>
void forEachOutputConstraintSpace(const Func& func)
{
for (auto* space : m_outputConstraintSpaces)
func(*space);
}
JSC::IsoHeapCellType m_heapCellTypeForJSWorkerGlobalScope;
private:
Lock m_lock;
private:
std::unique_ptr<ExtendedDOMIsoSubspaces> m_subspaces;
JSC::IsoSubspace m_domConstructorSpace;
JSC::IsoSubspace m_domBuiltinConstructorSpace;
JSC::IsoSubspace m_domNamespaceObjectSpace;
Vector<JSC::IsoSubspace*> m_outputConstraintSpaces;
};
class JSVMClientData : public JSC::VM::ClientData {
WTF_MAKE_NONCOPYABLE(JSVMClientData);
WTF_MAKE_FAST_ALLOCATED;
public:
explicit JSVMClientData(JSC::VM&);
virtual ~JSVMClientData();
static void create(JSC::VM*);
JSHeapData& heapData() { return *m_heapData; }
BunBuiltinNames& builtinNames() { return m_builtinNames; }
JSBuiltinFunctions& builtinFunctions() { return m_builtinFunctions; }
String overrideSourceURL(const StackFrame&, const String& originalSourceURL) const
{
return originalSourceURL;
}
WebCore::DOMWrapperWorld& normalWorld() { return *m_normalWorld; }
JSC::GCClient::IsoSubspace& domConstructorSpace() { return m_domConstructorSpace; }
ExtendedDOMClientIsoSubspaces& clientSubspaces() { return *m_clientSubspaces.get(); }
Vector<JSC::IsoSubspace*>& outputConstraintSpaces() { return m_outputConstraintSpaces; }
JSC::GCClient::IsoSubspace& domBuiltinConstructorSpace() { return m_domBuiltinConstructorSpace; }
template<typename Func> void forEachOutputConstraintSpace(const Func& func)
{
for (auto* space : m_outputConstraintSpaces)
func(*space);
}
private:
BunBuiltinNames m_builtinNames;
JSBuiltinFunctions m_builtinFunctions;
JSHeapData* m_heapData;
RefPtr<WebCore::DOMWrapperWorld> m_normalWorld;
JSC::GCClient::IsoSubspace m_domConstructorSpace;
JSC::GCClient::IsoSubspace m_domBuiltinConstructorSpace;
JSC::GCClient::IsoSubspace m_domNamespaceObjectSpace;
std::unique_ptr<ExtendedDOMClientIsoSubspaces> m_clientSubspaces;
Vector<JSC::IsoSubspace*> m_outputConstraintSpaces;
};
template<typename T, UseCustomHeapCellType useCustomHeapCellType, typename GetClient, typename SetClient, typename GetServer, typename SetServer>
ALWAYS_INLINE JSC::GCClient::IsoSubspace* subspaceForImpl(JSC::VM& vm, GetClient getClient, SetClient setClient, GetServer getServer, SetServer setServer, JSC::HeapCellType& (*getCustomHeapCellType)(JSHeapData&) = nullptr)
{
auto& clientData = *static_cast<JSVMClientData*>(vm.clientData);
auto& clientSubspaces = clientData.clientSubspaces();
if (auto* clientSpace = getClient(clientSubspaces))
return clientSpace;
auto& heapData = clientData.heapData();
Locker locker { heapData.lock() };
auto& subspaces = heapData.subspaces();
JSC::IsoSubspace* space = getServer(subspaces);
if (!space) {
JSC::Heap& heap = vm.heap;
std::unique_ptr<JSC::IsoSubspace> uniqueSubspace;
static_assert(useCustomHeapCellType == UseCustomHeapCellType::Yes || std::is_base_of_v<JSC::JSDestructibleObject, T> || !T::needsDestruction);
if constexpr (useCustomHeapCellType == UseCustomHeapCellType::Yes)
uniqueSubspace = makeUnique<JSC::IsoSubspace> ISO_SUBSPACE_INIT(heap, getCustomHeapCellType(heapData), T);
else {
if constexpr (std::is_base_of_v<JSC::JSDestructibleObject, T>)
uniqueSubspace = makeUnique<JSC::IsoSubspace> ISO_SUBSPACE_INIT(heap, heap.destructibleObjectHeapCellType, T);
else
uniqueSubspace = makeUnique<JSC::IsoSubspace> ISO_SUBSPACE_INIT(heap, heap.cellHeapCellType, T);
}
space = uniqueSubspace.get();
setServer(subspaces, WTFMove(uniqueSubspace));
IGNORE_WARNINGS_BEGIN("unreachable-code")
IGNORE_WARNINGS_BEGIN("tautological-compare")
void (*myVisitOutputConstraint)(JSC::JSCell*, JSC::SlotVisitor&) = T::visitOutputConstraints;
void (*jsCellVisitOutputConstraint)(JSC::JSCell*, JSC::SlotVisitor&) = JSC::JSCell::visitOutputConstraints;
if (myVisitOutputConstraint != jsCellVisitOutputConstraint)
heapData.outputConstraintSpaces().append(space);
IGNORE_WARNINGS_END
IGNORE_WARNINGS_END
}
auto uniqueClientSubspace = makeUnique<JSC::GCClient::IsoSubspace>(*space);
auto* clientSpace = uniqueClientSubspace.get();
setClient(clientSubspaces, WTFMove(uniqueClientSubspace));
return clientSpace;
}
// template<typename T, UseCustomHeapCellType useCustomHeapCellType, typename GetClient, typename SetClient, typename GetServer, typename SetServer>
// ALWAYS_INLINE JSC::GCClient::IsoSubspace* subspaceForImpl(JSC::VM& vm, GetClient getClient, SetClient setClient, GetServer getServer, SetServer setServer, JSC::HeapCellType& (*getCustomHeapCellType)(JSHeapData&) = nullptr)
// {
// static NeverDestroyed<JSC::IsoSubspacePerVM> perVM([](JSC::Heap& heap) {
// return ISO_SUBSPACE_PARAMETERS(heap.destructibleObjectHeapCellType, T);
// });
// return &perVM.get().clientIsoSubspaceforVM(vm);
// }
static JSVMClientData* clientData(JSC::VM& vm)
{
return static_cast<WebCore::JSVMClientData*>(vm.clientData);
}
static inline BunBuiltinNames& builtinNames(JSC::VM& vm)
{
return clientData(vm)->builtinNames();
}
} // namespace WebCore
namespace WebCore {
using JSVMClientData = WebCore::JSVMClientData;
using JSHeapData = WebCore::JSHeapData;
}
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