Update WebKit

8 files changed, 119 insertions, 33 deletions

diff --git a/.github/workflows/bun-linux-build.yml b/.github/workflows/bun-linux-build.yml
index 3b5497b47..13e99460f 100644
--- a/.github/workflows/bun-linux-build.yml
+++ b/.github/workflows/bun-linux-build.yml
@@ -37,21 +37,21 @@ jobs:
             arch: x86_64
             build_arch: amd64
             runner: linux-amd64
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-linux-amd64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-linux-amd64-lto.tar.gz"
             webkit_basename: "bun-webkit-linux-amd64-lto"
           - cpu: westmere
             tag: linux-x64-baseline
             arch: x86_64
             build_arch: amd64
             runner: linux-amd64
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-linux-amd64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-linux-amd64-lto.tar.gz"
             webkit_basename: "bun-webkit-linux-amd64-lto"
           - cpu: native
             tag: linux-aarch64
             arch: aarch64
             build_arch: arm64
             runner: linux-arm64
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-linux-arm64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-linux-arm64-lto.tar.gz"
             webkit_basename: "bun-webkit-linux-arm64-lto"
 
     steps:
@@ -76,9 +76,8 @@ jobs:
         with:
           context: .
           push: false
-          tags: ghcr.io/oven-sh/bun:canary,ghcr.io/oven-sh/bun:${{github.sha}}
-          cache-from: type=registry,ref=ghcr.io/oven-sh/bun:buildcache-bust-3--${{matrix.cpu}}-${{matrix.build_arch}}
-          cache-to: type=registry,ref=ghcr.io/oven-sh/bun:buildcache-bust-3--${{matrix.cpu}}-${{matrix.build_arch}},mode=max
+          cache-from: type=registry,ref=ghcr.io/oven-sh/bun-obj:buildcache-bust-3--${{matrix.cpu}}-${{matrix.build_arch}}
+          cache-to: type=registry,ref=ghcr.io/oven-sh/bun-obj:buildcache-bust-3--${{matrix.cpu}}-${{matrix.build_arch}},mode=max
           build-args: |
             ARCH=${{matrix.arch}}
             BUILDARCH=${{matrix.build_arch}}
diff --git a/.github/workflows/bun-mac-aarch64.yml b/.github/workflows/bun-mac-aarch64.yml
index aa4213220..652fc073f 100644
--- a/.github/workflows/bun-mac-aarch64.yml
+++ b/.github/workflows/bun-mac-aarch64.yml
@@ -125,7 +125,7 @@ jobs:
             tag: bun-darwin-aarch64
             obj: bun-obj-darwin-aarch64
             artifact: bun-obj-darwin-aarch64
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-arm64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-arm64-lto.tar.gz"
             runner: macos-arm64
             dependencies: true
             compile_obj: true
@@ -239,7 +239,7 @@ jobs:
             obj: bun-obj-darwin-aarch64
             package: bun-darwin-aarch64
             artifact: bun-obj-darwin-aarch64
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-arm64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-arm64-lto.tar.gz"
             runner: macos-arm64
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/bun-mac-x64-baseline.yml b/.github/workflows/bun-mac-x64-baseline.yml
index deef92126..6d65a46fe 100644
--- a/.github/workflows/bun-mac-x64-baseline.yml
+++ b/.github/workflows/bun-mac-x64-baseline.yml
@@ -90,7 +90,7 @@ jobs:
             obj: bun-obj-darwin-x64-baseline
             runner: macos-11
             artifact: bun-obj-darwin-x64-baseline
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
             dependencies: true
             compile_obj: false
           # - cpu: haswell
@@ -99,7 +99,7 @@ jobs:
           #   obj: bun-obj-darwin-x64
           #   runner: macos-11
           #   artifact: bun-obj-darwin-x64
-          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
           #   dependencies: true
           #   compile_obj: false
           - cpu: westmere
@@ -108,7 +108,7 @@ jobs:
             obj: bun-obj-darwin-x64-baseline
             runner: macos-11
             artifact: bun-obj-darwin-x64-baseline
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
             dependencies: false
             compile_obj: true
           # - cpu: haswell
@@ -117,7 +117,7 @@ jobs:
           #   obj: bun-obj-darwin-x64
           #   runner: macos-11
           #   artifact: bun-obj-darwin-x64
-          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
           #   dependencies: false
           #   compile_obj: true
           # - cpu: native
@@ -125,7 +125,7 @@ jobs:
           #   tag: bun-darwin-aarch64
           #   obj: bun-obj-darwin-aarch64
           #   artifact: bun-obj-darwin-aarch64
-          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
           #   runner: macos-arm64
           #   dependencies: true
           #   compile_obj: true
@@ -218,7 +218,7 @@ jobs:
             package: bun-darwin-x64
             runner: macos-11
             artifact: bun-obj-darwin-x64-baseline
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
           # - cpu: haswell
           #   arch: x86_64
           #   tag: bun-darwin-x64
@@ -226,14 +226,14 @@ jobs:
           #   package: bun-darwin-x64
           #   runner: macos-11
           #   artifact: bun-obj-darwin-x64
-          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
           # - cpu: native
           #   arch: aarch64
           #   tag: bun-darwin-aarch64
           #   obj: bun-obj-darwin-aarch64
           #   package: bun-darwin-aarch64
           #   artifact: bun-obj-darwin-aarch64
-          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
           #   runner: macos-arm64
     steps:
       - uses: actions/checkout@v3
diff --git a/.github/workflows/bun-mac-x64.yml b/.github/workflows/bun-mac-x64.yml
index 73787b34d..8aa9fcff7 100644
--- a/.github/workflows/bun-mac-x64.yml
+++ b/.github/workflows/bun-mac-x64.yml
@@ -99,7 +99,7 @@ jobs:
             obj: bun-obj-darwin-x64
             runner: macos-11
             artifact: bun-obj-darwin-x64
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
             dependencies: true
             compile_obj: false
           # - cpu: westmere
@@ -117,7 +117,7 @@ jobs:
             obj: bun-obj-darwin-x64
             runner: macos-11
             artifact: bun-obj-darwin-x64
-            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-amd64-lto.tar.gz"
+            webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-amd64-lto.tar.gz"
             dependencies: false
             compile_obj: true
           # - cpu: native
@@ -125,7 +125,7 @@ jobs:
           #   tag: bun-darwin-aarch64
           #   obj: bun-obj-darwin-aarch64
           #   artifact: bun-obj-darwin-aarch64
-          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-arm64-lto.tar.gz"
+          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-arm64-lto.tar.gz"
           #   runner: macos-arm64
           #   dependencies: true
           #   compile_obj: true
@@ -235,7 +235,7 @@ jobs:
           #   obj: bun-obj-darwin-aarch64
           #   package: bun-darwin-aarch64
           #   artifact: bun-obj-darwin-aarch64
-          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-macos-arm64-lto.tar.gz"
+          #   webkit_url: "https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-macos-arm64-lto.tar.gz"
           #   runner: macos-arm64
     steps:
       - uses: actions/checkout@v3
diff --git a/Dockerfile.devcontainer b/Dockerfile.devcontainer
index 25f300890..86750ed0d 100644
--- a/Dockerfile.devcontainer
+++ b/Dockerfile.devcontainer
@@ -88,7 +88,7 @@ RUN cd $GITHUB_WORKSPACE && \
     rm zig-linux-$BUILDARCH.zip;
 
 RUN cd $GITHUB_WORKSPACE && \
-    curl -o bun-webkit-linux-$BUILDARCH.tar.gz -L https://github.com/oven-sh/WebKit/releases/download/jul31/bun-webkit-linux-$BUILDARCH.tar.gz && \
+    curl -o bun-webkit-linux-$BUILDARCH.tar.gz -L https://github.com/oven-sh/WebKit/releases/download/jul31-2/bun-webkit-linux-$BUILDARCH.tar.gz && \
     tar -xzf bun-webkit-linux-$BUILDARCH.tar.gz && \
     rm bun-webkit-linux-$BUILDARCH.tar.gz && \
     cat $WEBKIT_OUT_DIR/include/cmakeconfig.h > /dev/null
diff --git a/Makefile b/Makefile
index dbce2a720..fce9b6b02 100644
--- a/Makefile
+++ b/Makefile
@@ -1145,6 +1145,10 @@ jsc-copy-headers:
 	cp $(WEBKIT_DIR)/Source/JavaScriptCore/jit/JSInterfaceJIT.h $(WEBKIT_RELEASE_DIR)/JavaScriptCore/PrivateHeaders/JavaScriptCore/JSInterfaceJIT.h
 	cp $(WEBKIT_DIR)/Source/JavaScriptCore/llint/LLIntData.h $(WEBKIT_RELEASE_DIR)/JavaScriptCore/PrivateHeaders/JavaScriptCore/LLIntData.h
 	cp $(WEBKIT_DIR)/Source/JavaScriptCore/bytecode/FunctionCodeBlock.h $(WEBKIT_RELEASE_DIR)/JavaScriptCore/PrivateHeaders/JavaScriptCore/FunctionCodeBlock.h
+	cp $(WEBKIT_DIR)/Source/JavaScriptCore/dfg/DFGAbstractHeap.h $(WEBKIT_RELEASE_DIR)/JavaScriptCore/PrivateHeaders/JavaScriptCore/DFGAbstractHeap.h
+	cp $(WEBKIT_DIR)/Source/JavaScriptCore/bytecode/OperandsInlines.h $(WEBKIT_RELEASE_DIR)/JavaScriptCore/PrivateHeaders/JavaScriptCore/OperandsInlines.h
+	cp $(WEBKIT_DIR)/Source/JavaScriptCore/bytecode/Operands.h $(WEBKIT_RELEASE_DIR)/JavaScriptCore/PrivateHeaders/JavaScriptCore/Operands.h
+	cp $(WEBKIT_DIR)/Source/JavaScriptCore/domjit/DOMJITHeapRange.h $(WEBKIT_RELEASE_DIR)/JavaScriptCore/PrivateHeaders/JavaScriptCore/DOMJITHeapRange.h
 	find $(WEBKIT_RELEASE_DIR)/JavaScriptCore/Headers/JavaScriptCore/ -name "*.h" -exec cp {} $(WEBKIT_RELEASE_DIR)/JavaScriptCore/PrivateHeaders/JavaScriptCore/ \;
 
 # This is a workaround for a JSC bug that impacts aarch64
@@ -1432,7 +1436,7 @@ $(OBJ_DIR)/%.o: $(SRC_DIR)/%.cpp
 		-fno-rtti \
 		-ferror-limit=1000 \
 		$(EMIT_LLVM) \
-		-g3 -c -o $@ $<
+		-c -o $@ $<
 
 $(OBJ_DIR)/%.o: $(SRC_DIR)/webcore/%.cpp
 	$(CXX) $(CLANG_FLAGS) \
@@ -1442,7 +1446,7 @@ $(OBJ_DIR)/%.o: $(SRC_DIR)/webcore/%.cpp
 		-fno-rtti \
 		-ferror-limit=1000 \
 		$(EMIT_LLVM) \
-		-g3 -c -o $@ $<
+		-c -o $@ $<
 
 $(OBJ_DIR)/%.o: $(SRC_DIR)/sqlite/%.cpp
 	$(CXX) $(CLANG_FLAGS) \
@@ -1452,7 +1456,7 @@ $(OBJ_DIR)/%.o: $(SRC_DIR)/sqlite/%.cpp
 		-fno-rtti \
 		-ferror-limit=1000 \
 		$(EMIT_LLVM) \
-		-g3 -c -o $@ $<
+		-c -o $@ $<
 
 $(OBJ_DIR)/%.o: src/bun.js/builtins/%.cpp
 	$(CXX) $(CLANG_FLAGS) \
@@ -1462,7 +1466,7 @@ $(OBJ_DIR)/%.o: src/bun.js/builtins/%.cpp
 		-fno-rtti \
 		-ferror-limit=1000 \
 		$(EMIT_LLVM) \
-		-g3 -c -o $@ $<
+		-c -o $@ $<
 
 # $(DEBUG_OBJ_DIR) is not included here because it breaks
 # detecting if a file needs to be rebuilt
diff --git a/src/bun.js/WebKit b/src/bun.js/WebKit
-Subproject 7d9e2ffa4365e676a4aa96a9941154a68e54f0f
+Subproject d128052f960d06aad225db6499c3797e0b0363b
diff --git a/src/bun.js/bindings/ZigGlobalObject.cpp b/src/bun.js/bindings/ZigGlobalObject.cpp
index bdd750904..af3ecedbc 100644
--- a/src/bun.js/bindings/ZigGlobalObject.cpp
+++ b/src/bun.js/bindings/ZigGlobalObject.cpp
@@ -142,6 +142,13 @@ using JSBuffer = WebCore::JSBuffer;
 #include "JSSink.h"
 #include "ImportMetaObject.h"
 
+#include <JavaScriptCore/DOMJITAbstractHeap.h>
+#include "DOMJITIDLConvert.h"
+#include "DOMJITIDLType.h"
+#include "DOMJITIDLTypeFilter.h"
+#include "DOMJITHelpers.h"
+#include <JavaScriptCore/DFGAbstractHeap.h>
+
 // #include <iostream>
 static bool has_loaded_jsc = false;
 
@@ -376,8 +383,8 @@ void GlobalObject::promiseRejectionTracker(JSGlobalObject* obj, JSC::JSPromise*
         globalObj->m_aboutToBeNotifiedRejectedPromises.append(JSC::Strong<JSPromise>(obj->vm(), promise));
         break;
     case JSPromiseRejectionOperation::Handle:
-        globalObj->m_aboutToBeNotifiedRejectedPromises.removeFirstMatching([&] (Strong<JSPromise>& unhandledPromise) {
-          return unhandledPromise.get() == promise;
+        globalObj->m_aboutToBeNotifiedRejectedPromises.removeFirstMatching([&](Strong<JSPromise>& unhandledPromise) {
+            return unhandledPromise.get() == promise;
         });
         break;
     }
@@ -1501,9 +1508,7 @@ JSC_DEFINE_HOST_FUNCTION(functionConcatTypedArrays, (JSGlobalObject * globalObje
 
 extern "C" uint64_t Bun__readOriginTimer(void*);
 
-JSC_DECLARE_HOST_FUNCTION(functionPerformanceNow);
-
-JSC_DEFINE_HOST_FUNCTION(functionPerformanceNow, (JSGlobalObject * globalObject, JSC::CallFrame* callFrame))
+static inline EncodedJSValue functionPerformanceNowBody(JSGlobalObject* globalObject)
 {
     auto* global = reinterpret_cast<GlobalObject*>(globalObject);
     // nanoseconds to seconds
@@ -1512,12 +1517,81 @@ JSC_DEFINE_HOST_FUNCTION(functionPerformanceNow, (JSGlobalObject * globalObject,
     return JSValue::encode(jsNumber(result));
 }
 
+extern "C" {
+class JSPerformanceObject;
+static JSC_DECLARE_HOST_FUNCTION(functionPerformanceNow);
+static JSC_DECLARE_JIT_OPERATION_WITHOUT_WTF_INTERNAL(functionPerformanceNowWithoutTypeCheck, JSC::EncodedJSValue, (JSC::JSGlobalObject*, JSPerformanceObject*));
+}
+
+class JSPerformanceObject final : public JSC::JSNonFinalObject {
+public:
+    using Base = JSC::JSNonFinalObject;
+    static JSPerformanceObject* create(JSC::VM& vm, JSDOMGlobalObject* globalObject, JSC::Structure* structure)
+    {
+        JSPerformanceObject* ptr = new (NotNull, JSC::allocateCell<JSPerformanceObject>(vm)) JSPerformanceObject(vm, globalObject, structure);
+        ptr->finishCreation(vm);
+        return ptr;
+    }
+
+    DECLARE_INFO;
+    template<typename CellType, JSC::SubspaceAccess>
+    static JSC::GCClient::IsoSubspace* subspaceFor(JSC::VM& vm)
+    {
+        STATIC_ASSERT_ISO_SUBSPACE_SHARABLE(JSPerformanceObject, Base);
+        return &vm.plainObjectSpace();
+    }
+    static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype)
+    {
+        return JSC::Structure::create(vm, globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), info());
+    }
+
+private:
+    JSPerformanceObject(JSC::VM& vm, JSC::JSGlobalObject*, JSC::Structure* structure)
+        : JSC::JSNonFinalObject(vm, structure)
+    {
+    }
+
+    void finishCreation(JSC::VM& vm)
+    {
+        static const JSC::DOMJIT::Signature DOMJITSignatureForPerformanceNow(
+            functionPerformanceNowWithoutTypeCheck,
+            JSPerformanceObject::info(),
+            JSC::DOMJIT::Effect::forReadWrite(JSC::DOMJIT::HeapRange::top(), JSC::DOMJIT::HeapRange::top()),
+            WebCore::DOMJIT::IDLResultTypeFilter<IDLUnsignedLong>::value);
+
+        JSFunction* function = JSFunction::create(
+            vm,
+            globalObject(),
+            0,
+            String("now"_s),
+            functionPerformanceNow, NoIntrinsic, functionPerformanceNow,
+            &DOMJITSignatureForPerformanceNow);
+
+        this->putDirect(vm, JSC::Identifier::fromString(vm, "now"_s), function, JSC::PropertyAttribute::DOMJITFunction | JSC::PropertyAttribute::Function);
+    }
+};
+const ClassInfo JSPerformanceObject::s_info = { "Performance"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSPerformanceObject) };
+
+JSC_DEFINE_HOST_FUNCTION(functionPerformanceNow, (JSGlobalObject * globalObject, JSC::CallFrame* callFrame))
+{
+    return functionPerformanceNowBody(globalObject);
+}
+
+JSC_DEFINE_JIT_OPERATION(functionPerformanceNowWithoutTypeCheck, JSC::EncodedJSValue, (JSC::JSGlobalObject * lexicalGlobalObject, JSPerformanceObject* castedThis))
+{
+    VM& vm = JSC::getVM(lexicalGlobalObject);
+    IGNORE_WARNINGS_BEGIN("frame-address")
+    CallFrame* callFrame = DECLARE_CALL_FRAME(vm);
+    IGNORE_WARNINGS_END
+    JSC::JITOperationPrologueCallFrameTracer tracer(vm, callFrame);
+    return functionPerformanceNowBody(lexicalGlobalObject);
+}
+
 JSC_DECLARE_HOST_FUNCTION(functionBunNanoseconds);
 
 JSC_DEFINE_HOST_FUNCTION(functionBunNanoseconds, (JSGlobalObject * globalObject, JSC::CallFrame* callFrame))
 {
     auto* global = reinterpret_cast<GlobalObject*>(globalObject);
-    // nanoseconds to seconds
     uint64_t time = Bun__readOriginTimer(global->bunVM());
     return JSValue::encode(jsNumber(time));
 }
@@ -1712,8 +1786,9 @@ void GlobalObject::finishCreation(VM& vm)
 
     m_performanceObject.initLater(
         [](const JSC::LazyProperty<JSC::JSGlobalObject, JSC::JSObject>::Initializer& init) {
-            JSC::JSObject* object = JSC::constructEmptyObject(init.owner, init.owner->objectPrototype(), 1);
-            object->putDirectNativeFunction(init.vm, init.owner, JSC::Identifier::fromString(init.vm, "now"_s), 1, functionPerformanceNow, NoIntrinsic, 0);
+            JSPerformanceObject* object = JSPerformanceObject::create(init.vm, reinterpret_cast<Zig::GlobalObject*>(init.owner),
+                JSPerformanceObject::createStructure(init.vm, init.owner, init.owner->objectPrototype()));
+
             init.set(object);
         });
 
@@ -1752,6 +1827,14 @@ void GlobalObject::finishCreation(VM& vm)
             init.set(map);
         });
 
+    m_encodeIntoObjectPrototype.initLater(
+        [](const JSC::LazyProperty<JSC::JSGlobalObject, JSC::JSObject>::Initializer& init) {
+            JSC::JSObject* object = JSC::constructEmptyObject(init.owner, init.owner->objectPrototype(), 2);
+            object->putDirect(init.vm, JSC::Identifier::fromString(init.vm, "read"_s), JSC::jsNumber(0), 0);
+            object->putDirect(init.vm, JSC::Identifier::fromString(init.vm, "written"_s), JSC::jsNumber(0), 0);
+            init.set(object);
+        });
+
     m_JSArrayBufferSinkClassStructure.initLater(
         [](LazyClassStructure::Initializer& init) {
             auto* prototype = createJSSinkPrototype(init.vm, init.global, WebCore::SinkID::ArrayBufferSink);