#pragma once
#include "JSDOMGlobalObject.h"
#include "NodeConstants.h"
#include <JavaScriptCore/JSDestructibleObject.h>
namespace WebCore {
class ScriptExecutionContext;
static const uint8_t JSDOMWrapperType = 0b11101110;
static const uint8_t JSEventType = 0b11101111;
static const uint8_t JSNodeType = 0b11110000;
static const uint8_t JSNodeTypeMask = 0b00001111;
static const uint8_t JSTextNodeType = JSNodeType | NodeConstants::TEXT_NODE;
static const uint8_t JSProcessingInstructionNodeType = JSNodeType | NodeConstants::PROCESSING_INSTRUCTION_NODE;
static const uint8_t JSDocumentTypeNodeType = JSNodeType | NodeConstants::DOCUMENT_TYPE_NODE;
static const uint8_t JSDocumentFragmentNodeType = JSNodeType | NodeConstants::DOCUMENT_FRAGMENT_NODE;
static const uint8_t JSDocumentWrapperType = JSNodeType | NodeConstants::DOCUMENT_NODE;
static const uint8_t JSCommentNodeType = JSNodeType | NodeConstants::COMMENT_NODE;
static const uint8_t JSCDATASectionNodeType = JSNodeType | NodeConstants::CDATA_SECTION_NODE;
static const uint8_t JSAttrNodeType = JSNodeType | NodeConstants::ATTRIBUTE_NODE;
static const uint8_t JSElementType = 0b11110000 | NodeConstants::ELEMENT_NODE;
static_assert(JSDOMWrapperType > JSC::LastJSCObjectType, "JSC::JSType offers the highest bit.");
static_assert(NodeConstants::LastNodeType <= JSNodeTypeMask, "NodeType should be represented in 4bit.");
class JSDOMObject : public JSC::JSDestructibleObject {
public:
typedef JSC::JSDestructibleObject Base;
static constexpr bool isDOMWrapper = false;
template<typename, JSC::SubspaceAccess>
static void subspaceFor(JSC::VM&) { RELEASE_ASSERT_NOT_REACHED(); }
JSDOMGlobalObject* globalObject() const { return JSC::jsCast<JSDOMGlobalObject*>(JSC::JSNonFinalObject::globalObject()); }
ScriptExecutionContext* scriptExecutionContext() const { return globalObject()->scriptExecutionContext(); }
protected:
WEBCORE_EXPORT JSDOMObject(JSC::Structure*, JSC::JSGlobalObject&);
};
template<typename ImplementationClass> class JSDOMWrapper : public JSDOMObject {
public:
typedef JSDOMObject Base;
typedef ImplementationClass DOMWrapped;
static constexpr bool isDOMWrapper = true;
ImplementationClass& wrapped() const { return m_wrapped; }
static ptrdiff_t offsetOfWrapped() { return OBJECT_OFFSETOF(JSDOMWrapper<ImplementationClass>, m_wrapped); }
protected:
JSDOMWrapper(JSC::Structure* structure, JSC::JSGlobalObject& globalObject, Ref<ImplementationClass>&& impl)
: Base(structure, globalObject)
, m_wrapped(WTFMove(impl)) { }
private:
Ref<ImplementationClass> m_wrapped;
};
template<typename ImplementationClass> struct JSDOMWrapperConverterTraits;
template<typename JSClass, typename Enable = void>
struct JSDOMObjectInspector {
public:
static constexpr bool isSimpleWrapper = false;
static constexpr bool isComplexWrapper = false;
static constexpr bool isBuiltin = true;
};
template<typename JSClass>
struct JSDOMObjectInspector<JSClass, typename std::enable_if<JSClass::isDOMWrapper>::type> {
private:
template<typename T> static constexpr auto test(int) -> decltype(T::create(), bool()) { return true; }
template<typename T> static constexpr bool test(...) { return false; }
public:
static constexpr bool isSimpleWrapper = test<typename JSClass::DOMWrapped>(0);
static constexpr bool isComplexWrapper = !isSimpleWrapper;
static constexpr bool isBuiltin = false;
};
JSC::JSValue cloneAcrossWorlds(JSC::JSGlobalObject&, const JSDOMObject& owner, JSC::JSValue);
}