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bindings.cpp
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#include "root.h"
#include "JavaScriptCore/JSCJSValue.h"
#include "JavaScriptCore/JSGlobalObject.h"
#include "JavaScriptCore/DeleteAllCodeEffort.h"
#include "headers.h"
#include "BunClientData.h"
#include "GCDefferalContext.h"
#include "JavaScriptCore/AggregateError.h"
#include "JavaScriptCore/BytecodeIndex.h"
#include "JavaScriptCore/CodeBlock.h"
#include "JavaScriptCore/Completion.h"
#include "JavaScriptCore/ErrorInstance.h"
#include "JavaScriptCore/ExceptionHelpers.h"
#include "JavaScriptCore/ExceptionScope.h"
#include "JavaScriptCore/FunctionConstructor.h"
#include "JavaScriptCore/HeapSnapshotBuilder.h"
#include "JavaScriptCore/Identifier.h"
#include "JavaScriptCore/IteratorOperations.h"
#include "JavaScriptCore/JSArray.h"
#include "JavaScriptCore/JSArrayBuffer.h"
#include "JavaScriptCore/JSArrayInlines.h"
#include "JavaScriptCore/ErrorInstanceInlines.h"
#include "JavaScriptCore/JSCallbackObject.h"
#include "JavaScriptCore/JSClassRef.h"
#include "JavaScriptCore/JSInternalPromise.h"
#include "JavaScriptCore/JSMap.h"
#include "JavaScriptCore/JSModuleLoader.h"
#include "JavaScriptCore/JSModuleRecord.h"
#include "JavaScriptCore/JSNativeStdFunction.h"
#include "JavaScriptCore/JSONObject.h"
#include "JavaScriptCore/JSObject.h"
#include "JavaScriptCore/JSSet.h"
#include "JavaScriptCore/JSString.h"
#include "JavaScriptCore/ProxyObject.h"
#include "JavaScriptCore/Microtask.h"
#include "JavaScriptCore/ObjectConstructor.h"
#include "JavaScriptCore/ParserError.h"
#include "JavaScriptCore/ScriptExecutable.h"
#include "JavaScriptCore/StackFrame.h"
#include "JavaScriptCore/StackVisitor.h"
#include "JavaScriptCore/VM.h"
#include "JavaScriptCore/WasmFaultSignalHandler.h"
#include "JavaScriptCore/Watchdog.h"
#include "ZigGlobalObject.h"
#include "helpers.h"
#include "JavaScriptCore/JSObjectInlines.h"
#include "wtf/Assertions.h"
#include "wtf/text/ExternalStringImpl.h"
#include "wtf/text/StringCommon.h"
#include "wtf/text/StringImpl.h"
#include "wtf/text/StringView.h"
#include "wtf/text/WTFString.h"
#include "JavaScriptCore/FunctionPrototype.h"
#include "JSFetchHeaders.h"
#include "FetchHeaders.h"
#include "DOMURL.h"
#include "JSDOMURL.h"
#include <string_view>
#include <bun-uws/src/App.h>
#include <bun-usockets/src/internal/internal.h>
#include "IDLTypes.h"
#include "JSDOMBinding.h"
#include "JSDOMConstructor.h"
#include "JSDOMConvertBase.h"
#include "JSDOMConvertBoolean.h"
#include "JSDOMConvertInterface.h"
#include "JSDOMConvertNullable.h"
#include "JSDOMConvertRecord.h"
#include "JSDOMConvertSequences.h"
#include "JSDOMConvertStrings.h"
#include "JSDOMConvertUnion.h"
#include "JSDOMExceptionHandling.h"
#include "JSDOMGlobalObjectInlines.h"
#include "JSDOMIterator.h"
#include "JSDOMOperation.h"
#include "JSDOMWrapperCache.h"
#include "wtf/text/AtomString.h"
#include "wtf/Scope.h"
#include "HTTPHeaderNames.h"
#include "JSDOMPromiseDeferred.h"
#include "JavaScriptCore/TestRunnerUtils.h"
#include "JavaScriptCore/DateInstance.h"
#include "JavaScriptCore/RegExpObject.h"
#include "JavaScriptCore/PropertyNameArray.h"
#include "JavaScriptCore/HashMapImpl.h"
#include "JavaScriptCore/HashMapImplInlines.h"
#include "webcore/JSAbortSignal.h"
#include "JSAbortAlgorithm.h"
#include "DOMFormData.h"
#include "JSDOMFormData.h"
#include "ZigGeneratedClasses.h"
#include "JavaScriptCore/JSMapInlines.h"
#include <JavaScriptCore/JSWeakMap.h>
#include "JSURLSearchParams.h"
#include "AsyncContextFrame.h"
#include "JavaScriptCore/InternalFieldTuple.h"
#include "wtf/text/StringToIntegerConversion.h"
#include "JavaScriptCore/GetterSetter.h"
#include "JavaScriptCore/CustomGetterSetter.h"
static WTF::StringView StringView_slice(WTF::StringView sv, unsigned start, unsigned end)
{
return sv.substring(start, end - start);
}
template<typename UWSResponse>
static void copyToUWS(WebCore::FetchHeaders* headers, UWSResponse* res)
{
auto& internalHeaders = headers->internalHeaders();
for (auto& value : internalHeaders.getSetCookieHeaders()) {
res->writeHeader(std::string_view("set-cookie", 10), std::string_view(value.is8Bit() ? reinterpret_cast<const char*>(value.characters8()) : value.utf8().data(), value.length()));
}
for (const auto& header : internalHeaders.commonHeaders()) {
const auto& name = WebCore::httpHeaderNameString(header.key);
const auto& value = header.value;
res->writeHeader(
std::string_view(name.is8Bit() ? reinterpret_cast<const char*>(name.characters8()) : name.utf8().data(), name.length()),
std::string_view(value.is8Bit() ? reinterpret_cast<const char*>(value.characters8()) : value.utf8().data(), value.length()));
}
for (auto& header : internalHeaders.uncommonHeaders()) {
const auto& name = header.key;
const auto& value = header.value;
res->writeHeader(
std::string_view(name.is8Bit() ? reinterpret_cast<const char*>(name.characters8()) : name.utf8().data(), name.length()),
std::string_view(value.is8Bit() ? reinterpret_cast<const char*>(value.characters8()) : value.utf8().data(), value.length()));
}
}
using namespace JSC;
using namespace WebCore;
typedef uint8_t ExpectFlags;
// Note: keep this in sync with Expect.Flags implementation in zig (at expect.zig)
// clang disable unused warning
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-variable"
static constexpr int FLAG_PROMISE_RESOLVES = (1 << 0);
static constexpr int FLAG_PROMISE_REJECTS = (1 << 1);
static constexpr int FLAG_NOT = (1 << 2);
#pragma clang diagnostic pop
extern "C" bool Expect_readFlagsAndProcessPromise(JSC__JSValue instanceValue, JSC__JSGlobalObject* globalObject, ExpectFlags* flags, JSC__JSValue* value);
extern "C" bool ExpectCustomAsymmetricMatcher__execute(void* self, JSC__JSValue thisValue, JSC__JSGlobalObject* globalObject, JSC__JSValue leftValue);
enum class AsymmetricMatcherResult : uint8_t {
PASS,
FAIL,
NOT_MATCHER,
};
bool readFlagsAndProcessPromise(JSValue& instanceValue, ExpectFlags& flags, JSGlobalObject* globalObject, JSValue& value)
{
JSC::EncodedJSValue valueEncoded = JSValue::encode(value);
if (Expect_readFlagsAndProcessPromise(JSValue::encode(instanceValue), globalObject, &flags, &valueEncoded)) {
value = JSValue::decode(valueEncoded);
return true;
}
return false;
}
AsymmetricMatcherResult matchAsymmetricMatcherAndGetFlags(JSGlobalObject* globalObject, JSValue matcherProp, JSValue otherProp, ThrowScope* throwScope, ExpectFlags& flags)
{
VM& vm = globalObject->vm();
JSCell* matcherPropCell = matcherProp.asCell();
if (auto* expectAnything = jsDynamicCast<JSExpectAnything*>(matcherPropCell)) {
if (!readFlagsAndProcessPromise(matcherProp, flags, globalObject, otherProp))
return AsymmetricMatcherResult::FAIL;
if (otherProp.isUndefinedOrNull()) {
return AsymmetricMatcherResult::FAIL;
}
return AsymmetricMatcherResult::PASS;
} else if (auto* expectAny = jsDynamicCast<JSExpectAny*>(matcherPropCell)) {
if (!readFlagsAndProcessPromise(matcherProp, flags, globalObject, otherProp))
return AsymmetricMatcherResult::FAIL;
JSValue constructorValue = expectAny->m_constructorValue.get();
JSObject* constructorObject = constructorValue.getObject();
if (otherProp.isPrimitive()) {
if (otherProp.isNumber() && globalObject->numberObjectConstructor() == constructorObject) {
return AsymmetricMatcherResult::PASS;
} else if (otherProp.isBoolean() && globalObject->booleanObjectConstructor() == constructorObject) {
return AsymmetricMatcherResult::PASS;
} else if (otherProp.isSymbol() && globalObject->symbolObjectConstructor() == constructorObject) {
return AsymmetricMatcherResult::PASS;
} else if (otherProp.isString()) {
if (auto* constructorFunction = jsDynamicCast<JSFunction*>(constructorObject)) {
String name = constructorFunction->name(vm);
if (name == "String"_s) {
return AsymmetricMatcherResult::PASS;
}
} else if (auto* internalConstructorFunction = jsDynamicCast<InternalFunction*>(constructorObject)) {
String name = internalConstructorFunction->name();
if (name == "String"_s) {
return AsymmetricMatcherResult::PASS;
}
}
} else if (otherProp.isBigInt()) {
if (auto* constructorFunction = jsDynamicCast<JSFunction*>(constructorObject)) {
String name = constructorFunction->name(vm);
if (name == "BigInt"_s) {
return AsymmetricMatcherResult::PASS;
}
} else if (auto* internalConstructorFunction = jsDynamicCast<InternalFunction*>(constructorObject)) {
String name = internalConstructorFunction->name();
if (name == "BigInt"_s) {
return AsymmetricMatcherResult::PASS;
}
}
}
return AsymmetricMatcherResult::FAIL;
}
if (constructorObject->hasInstance(globalObject, otherProp)) {
return AsymmetricMatcherResult::PASS;
}
return AsymmetricMatcherResult::FAIL;
} else if (auto* expectStringContaining = jsDynamicCast<JSExpectStringContaining*>(matcherPropCell)) {
if (!readFlagsAndProcessPromise(matcherProp, flags, globalObject, otherProp))
return AsymmetricMatcherResult::FAIL;
JSValue expectedSubstring = expectStringContaining->m_stringValue.get();
if (otherProp.isString()) {
String otherString = otherProp.toWTFString(globalObject);
RETURN_IF_EXCEPTION(*throwScope, AsymmetricMatcherResult::FAIL);
String substring = expectedSubstring.toWTFString(globalObject);
RETURN_IF_EXCEPTION(*throwScope, AsymmetricMatcherResult::FAIL);
if (otherString.find(substring) != WTF::notFound) {
return AsymmetricMatcherResult::PASS;
}
}
return AsymmetricMatcherResult::FAIL;
} else if (auto* expectStringMatching = jsDynamicCast<JSExpectStringMatching*>(matcherPropCell)) {
if (!readFlagsAndProcessPromise(matcherProp, flags, globalObject, otherProp))
return AsymmetricMatcherResult::FAIL;
JSValue expectedTestValue = expectStringMatching->m_testValue.get();
if (otherProp.isString()) {
if (expectedTestValue.isString()) {
String otherString = otherProp.toWTFString(globalObject);
RETURN_IF_EXCEPTION(*throwScope, AsymmetricMatcherResult::FAIL);
String substring = expectedTestValue.toWTFString(globalObject);
RETURN_IF_EXCEPTION(*throwScope, AsymmetricMatcherResult::FAIL);
if (otherString.find(substring) != WTF::notFound) {
return AsymmetricMatcherResult::PASS;
}
} else if (expectedTestValue.isCell() and expectedTestValue.asCell()->type() == RegExpObjectType) {
if (auto* regex = jsDynamicCast<RegExpObject*>(expectedTestValue)) {
JSString* otherString = otherProp.toString(globalObject);
if (regex->match(globalObject, otherString)) {
return AsymmetricMatcherResult::PASS;
}
}
}
}
return AsymmetricMatcherResult::FAIL;
} else if (auto* expectArrayContaining = jsDynamicCast<JSExpectArrayContaining*>(matcherPropCell)) {
if (!readFlagsAndProcessPromise(matcherProp, flags, globalObject, otherProp))
return AsymmetricMatcherResult::FAIL;
JSValue expectedArrayValue = expectArrayContaining->m_arrayValue.get();
if (JSC::isArray(globalObject, otherProp)) {
if (JSC::isArray(globalObject, expectedArrayValue)) {
JSArray* expectedArray = jsDynamicCast<JSArray*>(expectedArrayValue);
JSArray* otherArray = jsDynamicCast<JSArray*>(otherProp);
unsigned expectedLength = expectedArray->length();
unsigned otherLength = otherArray->length();
// A empty array is all array's subset
if (expectedLength == 0) {
return AsymmetricMatcherResult::PASS;
}
// O(m*n) but works for now
for (unsigned m = 0; m < expectedLength; m++) {
JSValue expectedValue = expectedArray->getIndex(globalObject, m);
bool found = false;
for (unsigned n = 0; n < otherLength; n++) {
JSValue otherValue = otherArray->getIndex(globalObject, n);
ThrowScope scope = DECLARE_THROW_SCOPE(globalObject->vm());
Vector<std::pair<JSValue, JSValue>, 16> stack;
MarkedArgumentBuffer gcBuffer;
if (Bun__deepEquals<false, true>(globalObject, expectedValue, otherValue, gcBuffer, stack, &scope, true)) {
found = true;
break;
}
}
if (!found) {
return AsymmetricMatcherResult::FAIL;
}
}
return AsymmetricMatcherResult::PASS;
}
}
return AsymmetricMatcherResult::FAIL;
} else if (auto* expectObjectContaining = jsDynamicCast<JSExpectObjectContaining*>(matcherPropCell)) {
if (!readFlagsAndProcessPromise(matcherProp, flags, globalObject, otherProp))
return AsymmetricMatcherResult::FAIL;
JSValue patternObject = expectObjectContaining->m_objectValue.get();
if (patternObject.isObject()) {
if (otherProp.isObject()) {
ThrowScope scope = DECLARE_THROW_SCOPE(globalObject->vm());
if (Bun__deepMatch<true>(otherProp, patternObject, globalObject, &scope, false, true)) {
return AsymmetricMatcherResult::PASS;
}
}
}
return AsymmetricMatcherResult::FAIL;
} else if (auto* expectCloseTo = jsDynamicCast<JSExpectCloseTo*>(matcherPropCell)) {
if (!readFlagsAndProcessPromise(matcherProp, flags, globalObject, otherProp))
return AsymmetricMatcherResult::FAIL;
if (!otherProp.isNumber()) {
// disable the "not" flag here, because if not a number it should still return FAIL when negated
flags = flags & ~FLAG_NOT;
return AsymmetricMatcherResult::FAIL;
}
JSValue expectedValue = expectCloseTo->m_numberValue.get();
JSValue digitsValue = expectCloseTo->m_digitsValue.get();
double received = otherProp.toNumber(globalObject);
double expected = expectedValue.toNumber(globalObject);
constexpr double infinity = std::numeric_limits<double>::infinity();
// special handing because (Infinity - Infinity) or (-Infinity - -Infinity) is NaN
if ((received == infinity && expected == infinity) || (received == -infinity && expected == -infinity)) {
return AsymmetricMatcherResult::PASS;
} else {
int32_t digits = digitsValue.toInt32(globalObject);
double threshold = 0.5 * std::pow(10.0, -digits);
bool isClose = std::abs(expected - received) < threshold;
return isClose ? AsymmetricMatcherResult::PASS : AsymmetricMatcherResult::FAIL;
}
} else if (auto* customMatcher = jsDynamicCast<JSExpectCustomAsymmetricMatcher*>(matcherPropCell)) {
if (!readFlagsAndProcessPromise(matcherProp, flags, globalObject, otherProp))
return AsymmetricMatcherResult::FAIL;
// ignore the "not" flag here, because the custom matchers handle it themselves (accessing this.isNot)
// and it would result in a double negation
flags = flags & ~FLAG_NOT;
bool passed = ExpectCustomAsymmetricMatcher__execute(customMatcher->wrapped(), JSValue::encode(matcherProp), globalObject, JSValue::encode(otherProp));
return passed ? AsymmetricMatcherResult::PASS : AsymmetricMatcherResult::FAIL;
}
return AsymmetricMatcherResult::NOT_MATCHER;
}
AsymmetricMatcherResult matchAsymmetricMatcher(JSGlobalObject* globalObject, JSValue matcherProp, JSValue otherProp, ThrowScope* throwScope)
{
ExpectFlags flags = ExpectFlags();
AsymmetricMatcherResult result = matchAsymmetricMatcherAndGetFlags(globalObject, matcherProp, otherProp, throwScope, flags);
if (result != AsymmetricMatcherResult::NOT_MATCHER && (flags & FLAG_NOT)) {
result = (result == AsymmetricMatcherResult::PASS) ? AsymmetricMatcherResult::FAIL : AsymmetricMatcherResult::PASS;
}
return result;
}
template<typename PromiseType, bool isInternal>
static void handlePromise(PromiseType* promise, JSC__JSGlobalObject* globalObject, JSC::EncodedJSValue ctx, JSC__JSValue (*resolverFunction)(JSC__JSGlobalObject* arg0, JSC__CallFrame* callFrame), JSC__JSValue (*rejecterFunction)(JSC__JSGlobalObject* arg0, JSC__CallFrame* callFrame))
{
auto globalThis = reinterpret_cast<Zig::GlobalObject*>(globalObject);
if constexpr (!isInternal) {
JSFunction* performPromiseThenFunction = globalObject->performPromiseThenFunction();
auto callData = JSC::getCallData(performPromiseThenFunction);
ASSERT(callData.type != CallData::Type::None);
MarkedArgumentBuffer arguments;
arguments.append(promise);
arguments.append(globalThis->thenable(resolverFunction));
arguments.append(globalThis->thenable(rejecterFunction));
arguments.append(jsUndefined());
arguments.append(JSValue::decode(ctx));
ASSERT(!arguments.hasOverflowed());
// async context tracking is handled by performPromiseThenFunction internally.
JSC::profiledCall(globalThis, JSC::ProfilingReason::Microtask, performPromiseThenFunction, callData, jsUndefined(), arguments);
} else {
promise->then(globalThis, resolverFunction, rejecterFunction);
}
}
static bool canPerformFastPropertyEnumerationForIterationBun(Structure* s)
{
if (s->hasNonReifiedStaticProperties()) {
return false;
}
if (s->typeInfo().overridesGetOwnPropertySlot())
return false;
if (s->typeInfo().overridesAnyFormOfGetOwnPropertyNames())
return false;
// FIXME: Indexed properties can be handled.
// https://bugs.webkit.org/show_bug.cgi?id=185358
if (hasIndexedProperties(s->indexingType()))
return false;
if (s->hasAnyKindOfGetterSetterProperties())
return false;
if (s->isUncacheableDictionary())
return false;
// Cannot perform fast [[Put]] to |target| if the property names of the |source| contain "__proto__".
if (s->hasUnderscoreProtoPropertyExcludingOriginalProto())
return false;
return true;
}
JSValue getIndexWithoutAccessors(JSGlobalObject* globalObject, JSObject* obj, uint64_t i)
{
if (obj->canGetIndexQuickly(i)) {
return obj->tryGetIndexQuickly(i);
}
PropertySlot slot(obj, PropertySlot::InternalMethodType::Get);
if (obj->methodTable()->getOwnPropertySlotByIndex(obj, globalObject, i, slot)) {
if (!slot.isAccessor()) {
return slot.getValue(globalObject, i);
}
}
return JSValue();
}
template<bool isStrict, bool enableAsymmetricMatchers>
bool Bun__deepEquals(JSC__JSGlobalObject* globalObject, JSValue v1, JSValue v2, MarkedArgumentBuffer& gcBuffer, Vector<std::pair<JSC::JSValue, JSC::JSValue>, 16>& stack, ThrowScope* scope, bool addToStack)
{
VM& vm = globalObject->vm();
// need to check this before primitives, asymmetric matchers
// can match against any type of value.
if constexpr (enableAsymmetricMatchers) {
if (v2.isCell() && !v2.isEmpty() && v2.asCell()->type() == JSC::JSType(JSDOMWrapperType)) {
switch (matchAsymmetricMatcher(globalObject, v2, v1, scope)) {
case AsymmetricMatcherResult::FAIL:
return false;
case AsymmetricMatcherResult::PASS:
return true;
case AsymmetricMatcherResult::NOT_MATCHER:
// continue comparison
break;
}
} else if (v1.isCell() && !v1.isEmpty() && v1.asCell()->type() == JSC::JSType(JSDOMWrapperType)) {
switch (matchAsymmetricMatcher(globalObject, v1, v2, scope)) {
case AsymmetricMatcherResult::FAIL:
return false;
case AsymmetricMatcherResult::PASS:
return true;
case AsymmetricMatcherResult::NOT_MATCHER:
// continue comparison
break;
}
}
}
if (!v1.isEmpty() && !v2.isEmpty() && JSC::sameValue(globalObject, v1, v2)) {
return true;
}
if (v1.isEmpty() || v2.isEmpty())
return v1.isEmpty() == v2.isEmpty();
if (v1.isPrimitive() || v2.isPrimitive())
return false;
RELEASE_ASSERT(v1.isCell());
RELEASE_ASSERT(v2.isCell());
const size_t length = stack.size();
const auto originalGCBufferSize = gcBuffer.size();
for (size_t i = 0; i < length; i++) {
auto values = stack.at(i);
if (JSC::JSValue::strictEqual(globalObject, values.first, v1)) {
return JSC::JSValue::strictEqual(globalObject, values.second, v2);
} else if (JSC::JSValue::strictEqual(globalObject, values.second, v2))
return false;
}
if (addToStack) {
gcBuffer.append(v1);
gcBuffer.append(v2);
stack.append({ v1, v2 });
}
auto removeFromStack = WTF::makeScopeExit([&] {
if (addToStack) {
stack.remove(length);
while (gcBuffer.size() > originalGCBufferSize)
gcBuffer.removeLast();
}
});
JSCell* c1 = v1.asCell();
JSCell* c2 = v2.asCell();
JSObject* o1 = v1.getObject();
JSObject* o2 = v2.getObject();
// We use additional values outside the enum
// so the warning here is unnecessary
uint8_t c1Type = c1->type();
uint8_t c2Type = c2->type();
switch (c1Type) {
case JSSetType: {
if (c2Type != JSSetType) {
return false;
}
JSSet* set1 = jsCast<JSSet*>(c1);
JSSet* set2 = jsCast<JSSet*>(c2);
if (set1->size() != set2->size()) {
return false;
}
bool canPerformFastSet = JSSet::isAddFastAndNonObservable(set1->structure()) && JSSet::isAddFastAndNonObservable(set2->structure());
// This code is loosely based on
// https://github.com/oven-sh/WebKit/blob/657558d4d4c9c33f41b9670e72d96a5a39fe546e/Source/JavaScriptCore/runtime/HashMapImplInlines.h#L203-L211
if (canPerformFastSet && set1->isIteratorProtocolFastAndNonObservable() && set2->isIteratorProtocolFastAndNonObservable()) {
auto* bucket = set1->head();
while (bucket) {
if (!bucket->deleted()) {
auto key = bucket->key();
RETURN_IF_EXCEPTION(*scope, false);
auto** bucket2ptr = set2->findBucket(globalObject, key);
if (bucket2ptr && (*bucket2ptr)->deleted()) {
bucket2ptr = nullptr;
}
if (!bucket2ptr) {
auto findDeepEqualKey = [&]() -> bool {
auto* bucket = set2->head();
while (bucket) {
if (!bucket->deleted()) {
auto key2 = bucket->key();
if (Bun__deepEquals<isStrict, enableAsymmetricMatchers>(globalObject, key, key2, gcBuffer, stack, scope, false)) {
return true;
}
}
bucket = bucket->next();
}
return false;
};
if (!findDeepEqualKey()) {
return false;
}
}
}
bucket = bucket->next();
}
return true;
}
// This code path can be triggered when it is a class that extends from Set.
//
// class MySet extends Set {}
//
IterationRecord iterationRecord1 = iteratorForIterable(globalObject, v1);
bool isEqual = true;
// https://github.com/oven-sh/bun/issues/7736
DeferGC deferGC(vm);
while (true) {
JSValue next1 = iteratorStep(globalObject, iterationRecord1);
if (next1.isFalse()) {
break;
}
JSValue nextValue1 = iteratorValue(globalObject, next1);
RETURN_IF_EXCEPTION(*scope, false);
bool found = false;
IterationRecord iterationRecord2 = iteratorForIterable(globalObject, v2);
while (true) {
JSValue next2 = iteratorStep(globalObject, iterationRecord2);
if (UNLIKELY(next2.isFalse())) {
break;
}
JSValue nextValue2 = iteratorValue(globalObject, next2);
RETURN_IF_EXCEPTION(*scope, false);
// set has unique values, no need to count
if (Bun__deepEquals<isStrict, enableAsymmetricMatchers>(globalObject, nextValue1, nextValue2, gcBuffer, stack, scope, false)) {
found = true;
if (!nextValue1.isPrimitive()) {
stack.append({ nextValue1, nextValue2 });
}
break;
}
}
if (!found) {
isEqual = false;
break;
}
}
if (!isEqual) {
return false;
}
return true;
}
case JSMapType: {
if (c2Type != JSMapType) {
return false;
}
JSMap* map1 = jsCast<JSMap*>(c1);
JSMap* map2 = jsCast<JSMap*>(c2);
size_t leftSize = map1->size();
if (leftSize != map2->size()) {
return false;
}
bool canPerformFastSet = JSMap::isSetFastAndNonObservable(map1->structure()) && JSMap::isSetFastAndNonObservable(map2->structure());
// This code is loosely based on
// https://github.com/oven-sh/WebKit/blob/657558d4d4c9c33f41b9670e72d96a5a39fe546e/Source/JavaScriptCore/runtime/HashMapImplInlines.h#L203-L211
if (canPerformFastSet && map1->isIteratorProtocolFastAndNonObservable() && map2->isIteratorProtocolFastAndNonObservable()) {
auto* bucket = map1->head();
while (bucket) {
if (!bucket->deleted()) {
auto key = bucket->key();
auto value = bucket->value();
RETURN_IF_EXCEPTION(*scope, false);
auto** bucket2ptr = map2->findBucket(globalObject, key);
JSMap::BucketType* bucket2 = nullptr;
if (bucket2ptr) {
bucket2 = *bucket2ptr;
if (bucket2->deleted()) {
bucket2 = nullptr;
}
}
if (!bucket2) {
auto findDeepEqualKey = [&]() -> JSMap::BucketType* {
auto* bucket = map2->head();
while (bucket) {
if (!bucket->deleted()) {
auto key2 = bucket->key();
if (Bun__deepEquals<isStrict, enableAsymmetricMatchers>(globalObject, key, key2, gcBuffer, stack, scope, false)) {
return bucket;
}
}
bucket = bucket->next();
}
return nullptr;
};
bucket2 = findDeepEqualKey();
}
if (!bucket2 || !Bun__deepEquals<isStrict, enableAsymmetricMatchers>(globalObject, value, bucket2->value(), gcBuffer, stack, scope, false)) {
return false;
}
}
bucket = bucket->next();
}
return true;
}
// This code path can be triggered when it is a class that extends from Map.
//
// class MyMap extends Map {}
//
IterationRecord iterationRecord1 = iteratorForIterable(globalObject, v1);
bool isEqual = true;
// https://github.com/oven-sh/bun/issues/7736
DeferGC deferGC(vm);
while (true) {
JSValue next1 = iteratorStep(globalObject, iterationRecord1);
if (next1.isFalse()) {
break;
}
JSValue nextValue1 = iteratorValue(globalObject, next1);
RETURN_IF_EXCEPTION(*scope, false);
if (UNLIKELY(!nextValue1.isObject())) {
return false;
}
JSObject* nextValueObject1 = asObject(nextValue1);
JSValue key1 = nextValueObject1->getIndex(globalObject, static_cast<unsigned>(0));
RETURN_IF_EXCEPTION(*scope, false);
bool found = false;
IterationRecord iterationRecord2 = iteratorForIterable(globalObject, v2);
while (true) {
JSValue next2 = iteratorStep(globalObject, iterationRecord2);
if (UNLIKELY(next2.isFalse())) {
break;
}
JSValue nextValue2 = iteratorValue(globalObject, next2);
RETURN_IF_EXCEPTION(*scope, false);
if (UNLIKELY(!nextValue2.isObject())) {
return false;
}
JSObject* nextValueObject2 = asObject(nextValue2);
JSValue key2 = nextValueObject2->getIndex(globalObject, static_cast<unsigned>(0));
RETURN_IF_EXCEPTION(*scope, false);
if (Bun__deepEquals<isStrict, enableAsymmetricMatchers>(globalObject, key1, key2, gcBuffer, stack, scope, false)) {
if (Bun__deepEquals<isStrict, enableAsymmetricMatchers>(globalObject, nextValue1, nextValue2, gcBuffer, stack, scope, false)) {
found = true;
if (!nextValue1.isPrimitive()) {
stack.append({ nextValue1, nextValue2 });
}
break;
}
}
}
if (!found) {
isEqual = false;
break;
}
}
if (!isEqual) {
return false;
}
return true;
}
case ArrayBufferType: {
if (c2Type != ArrayBufferType) {
return false;
}
JSC::ArrayBuffer* left = jsCast<JSArrayBuffer*>(v1)->impl();
JSC::ArrayBuffer* right = jsCast<JSArrayBuffer*>(v2)->impl();
size_t byteLength = left->byteLength();
if (right->byteLength() != byteLength) {
return false;
}
if (byteLength == 0)
return true;
if (UNLIKELY(right->isDetached() || left->isDetached())) {
return false;
}
const void* vector = left->data();
const void* rightVector = right->data();
if (UNLIKELY(!vector || !rightVector)) {
return false;
}
if (UNLIKELY(vector == rightVector))
return true;
return (memcmp(vector, rightVector, byteLength) == 0);
}
case JSDateType: {
if (c2Type != JSDateType) {
return false;
}
JSC::DateInstance* left = jsCast<DateInstance*>(v1);
JSC::DateInstance* right = jsCast<DateInstance*>(v2);
return left->internalNumber() == right->internalNumber();
}
case RegExpObjectType: {
if (c2Type != RegExpObjectType) {
return false;
}
if (JSC::RegExpObject* left = jsDynamicCast<JSC::RegExpObject*>(v1)) {
JSC::RegExpObject* right = jsDynamicCast<JSC::RegExpObject*>(v2);
if (UNLIKELY(!right)) {
return false;
}
return left->regExp()->key() == right->regExp()->key();
}
return false;
}
case ErrorInstanceType: {
if (c2Type != ErrorInstanceType) {
return false;
}
if (JSC::ErrorInstance* left = jsDynamicCast<JSC::ErrorInstance*>(v1)) {
JSC::ErrorInstance* right = jsDynamicCast<JSC::ErrorInstance*>(v2);
if (UNLIKELY(!right)) {
return false;
}
return (
left->sanitizedNameString(globalObject) == right->sanitizedNameString(globalObject) && left->sanitizedMessageString(globalObject) == right->sanitizedMessageString(globalObject));
}
}
case Int8ArrayType:
case Uint8ArrayType:
case Uint8ClampedArrayType:
case Int16ArrayType:
case Uint16ArrayType:
case Int32ArrayType:
case Uint32ArrayType:
case Float32ArrayType:
case Float64ArrayType:
case BigInt64ArrayType:
case BigUint64ArrayType: {
if (!isTypedArrayType(static_cast<JSC::JSType>(c2Type)) || c1Type != c2Type) {
return false;
}
JSC::JSArrayBufferView* left = jsCast<JSArrayBufferView*>(v1);
JSC::JSArrayBufferView* right = jsCast<JSArrayBufferView*>(v2);
size_t byteLength = left->byteLength();
if (right->byteLength() != byteLength) {
return false;
}
if (byteLength == 0)
return true;
if (UNLIKELY(right->isDetached() || left->isDetached())) {
return false;
}
const void* vector = left->vector();
const void* rightVector = right->vector();
if (UNLIKELY(!vector || !rightVector)) {
return false;
}
if (UNLIKELY(vector == rightVector))
return true;
return (memcmp(vector, rightVector, byteLength) == 0);
}
case StringObjectType: {
if (c2Type != StringObjectType) {
return false;
}
if (!equal(JSObject::calculatedClassName(o1), JSObject::calculatedClassName(o2))) {
return false;
}
JSString* s1 = c1->toStringInline(globalObject);
JSString* s2 = c2->toStringInline(globalObject);
return s1->equal(globalObject, s2);
}
case JSFunctionType: {
return false;
}
case JSDOMWrapperType: {
if (c2Type == JSDOMWrapperType) {
// https://github.com/oven-sh/bun/issues/4089
// https://github.com/oven-sh/bun/issues/6492
auto* url2 = jsDynamicCast<JSDOMURL*>(v2);
auto* url1 = jsDynamicCast<JSDOMURL*>(v1);
if constexpr (isStrict) {
// if one is a URL and the other is not a URL, toStrictEqual returns false.
if ((url2 == nullptr) != (url1 == nullptr)) {
return false;
}
}
if (url2 && url1) {
// toEqual or toStrictEqual should return false when the URLs' href is not equal
// But you could have added additional properties onto the
// url object itself, so we must check those as well
// But it's definitely not equal if the href() is not the same
if (url1->wrapped().href() != url2->wrapped().href()) {
return false;
}
}
}
break;
}
default: {
break;
}
}
bool v1Array = isArray(globalObject, v1);
RETURN_IF_EXCEPTION(*scope, false);
bool v2Array = isArray(globalObject, v2);
RETURN_IF_EXCEPTION(*scope, false);
if (v1Array != v2Array)
return false;
if (v1Array && v2Array) {
JSC::JSArray* array1 = JSC::jsCast<JSC::JSArray*>(v1);
JSC::JSArray* array2 = JSC::jsCast<JSC::JSArray*>(v2);
size_t array1Length = array1->length();
size_t array2Length = array2->length();
if constexpr (isStrict) {
if (array1Length != array2Length) {
return false;
}
}
uint64_t i = 0;
for (; i < array1Length; i++) {
JSValue left = getIndexWithoutAccessors(globalObject, o1, i);
RETURN_IF_EXCEPTION(*scope, false);
JSValue right = getIndexWithoutAccessors(globalObject, o2, i);
RETURN_IF_EXCEPTION(*scope, false);
if constexpr (isStrict) {
if (left.isEmpty() && right.isEmpty()) {
continue;
}
if (left.isEmpty() || right.isEmpty()) {
return false;
}
}
if constexpr (!isStrict) {
if (((left.isEmpty() || right.isEmpty()) && (left.isUndefined() || right.isUndefined()))) {
continue;
}
}
if (!Bun__deepEquals<isStrict, enableAsymmetricMatchers>(globalObject, left, right, gcBuffer, stack, scope, true)) {
return false;
}