/* * Copyright (c) 2021 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "ecmascript/base/json_stringifier.h" #include #include #include #include "ecmascript/base/builtins_base.h" #include "ecmascript/base/number_helper.h" #include "ecmascript/builtins/builtins_errors.h" #include "ecmascript/ecma_runtime_call_info.h" #include "ecmascript/ecma_string-inl.h" #include "ecmascript/ecma_vm.h" #include "ecmascript/js_array.h" #include "ecmascript/js_function.h" #include "ecmascript/js_handle.h" #include "ecmascript/js_object-inl.h" #include "ecmascript/js_primitive_ref.h" #include "ecmascript/js_tagged_value-inl.h" #include "ecmascript/js_tagged_value.h" #include "ecmascript/object_fast_operator-inl.h" namespace panda::ecmascript::base { constexpr unsigned char CODE_SPACE = 0x20; constexpr int GAP_MAX_LEN = 10; constexpr int FOUR_HEX = 4; constexpr char ZERO_FIRST = static_cast(0xc0); // \u0000 => c0 80 bool JsonStringifier::IsFastValueToQuotedString(const char *value) { if (strpbrk(value, "\"\\\b\f\n\r\t") != nullptr) { return false; } while (*value != '\0') { if ((*value > 0 && *value < CODE_SPACE) || *value == ZERO_FIRST) { return false; } value++; } return true; } CString JsonStringifier::ValueToQuotedString(CString str) { CString product; const char *value = str.c_str(); // fast mode bool isFast = IsFastValueToQuotedString(value); if (isFast) { product += "\""; product += str; product += "\""; return product; } // 1. Let product be code unit 0x0022 (QUOTATION MARK). product += "\""; // 2. For each code unit C in value for (const char *c = value; *c != 0; ++c) { switch (*c) { /* * a. If C is 0x0022 (QUOTATION MARK) or 0x005C (REVERSE SOLIDUS), then * i. Let product be the concatenation of product and code unit 0x005C (REVERSE SOLIDUS). * ii. Let product be the concatenation of product and C. */ case '\"': product += "\\\""; break; case '\\': product += "\\\\"; break; /* * b. Else if C is 0x0008 (BACKSPACE), 0x000C (FORM FEED), 0x000A (LINE FEED), 0x000D (CARRIAGE RETURN), * or 0x000B (LINE TABULATION), then * i. Let product be the concatenation of product and code unit 0x005C (REVERSE SOLIDUS). * ii. Let abbrev be the String value corresponding to the value of C as follows: * BACKSPACE "b" * FORM FEED (FF) "f" * LINE FEED (LF) "n" * CARRIAGE RETURN (CR) "r" * LINE TABULATION "t" * iii. Let product be the concatenation of product and abbrev. */ case '\b': product += "\\b"; break; case '\f': product += "\\f"; break; case '\n': product += "\\n"; break; case '\r': product += "\\r"; break; case '\t': product += "\\t"; break; case ZERO_FIRST: product += "\\u0000"; ++c; break; default: // c. Else if C has a code unit value less than 0x0020 (SPACE), then if (*c > 0 && *c < CODE_SPACE) { /* * i. Let product be the concatenation of product and code unit 0x005C (REVERSE SOLIDUS). * ii. Let product be the concatenation of product and "u". * iii. Let hex be the string result of converting the numeric code unit value of C to a String of * four hexadecimal digits. Alphabetic hexadecimal digits are presented as lowercase Latin letters. * iv. Let product be the concatenation of product and hex. */ std::ostringstream oss; oss << "\\u" << std::hex << std::setfill('0') << std::setw(FOUR_HEX) << static_cast(*c); product += oss.str(); } else { // Else, // i. Let product be the concatenation of product and C. product += *c; } } } // 3. Let product be the concatenation of product and code unit 0x0022 (QUOTATION MARK). product += "\""; // Return product. return product; } JSHandle JsonStringifier::Stringify(const JSHandle &value, const JSHandle &replacer, const JSHandle &gap) { factory_ = thread_->GetEcmaVM()->GetFactory(); handleValue_ = JSMutableHandle(thread_, JSTaggedValue::Undefined()); handleKey_ = JSMutableHandle(thread_, JSTaggedValue::Undefined()); // Let isArray be IsArray(replacer). bool isArray = replacer->IsArray(thread_); // ReturnIfAbrupt(isArray). RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread_); // If isArray is true, then if (isArray) { uint32_t len = 0; if (replacer->IsJSArray()) { // FastPath JSHandle arr(replacer); len = arr->GetArrayLength(); } else { // Let len be ToLength(Get(replacer, "length")). JSHandle lengthKey = thread_->GlobalConstants()->GetHandledLengthString(); JSHandle lenResult = JSTaggedValue::GetProperty(thread_, replacer, lengthKey).GetValue(); // ReturnIfAbrupt(len). RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread_); JSTaggedNumber lenNumber = JSTaggedValue::ToLength(thread_, lenResult); RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread_); len = lenNumber.ToUint32(); } if (len > 0) { JSMutableHandle propHandle(thread_, JSTaggedValue::Undefined()); // Repeat while kGetValue(); if (primitive.IsNumber() || primitive.IsString()) { AddDeduplicateProp(propHandle); RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread_); } } } } } // If Type(space) is Object, then if (gap->IsJSPrimitiveRef()) { JSTaggedValue primitive = JSPrimitiveRef::Cast(gap->GetTaggedObject())->GetValue(); // a. If space has a [[NumberData]] internal slot, then if (primitive.IsNumber()) { // i. Let space be ToNumber(space). JSTaggedNumber num = JSTaggedValue::ToNumber(thread_, gap); // ii. ReturnIfAbrupt(space). RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread_); CalculateNumberGap(num); } else if (primitive.IsString()) { // b. Else if space has a [[StringData]] internal slot, then // i. Let space be ToString(space). auto str = JSTaggedValue::ToString(thread_, gap); // ii. ReturnIfAbrupt(space). RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread_); CalculateStringGap(JSHandle(thread_, str.GetTaggedValue())); } } else if (gap->IsNumber()) { // If Type(space) is Number CalculateNumberGap(gap.GetTaggedValue()); } else if (gap->IsString()) { // Else if Type(space) is String CalculateStringGap(JSHandle::Cast(gap)); } JSHandle key(factory_->GetEmptyString()); JSTaggedValue serializeValue = GetSerializeValue(value, key, value, replacer); RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread_); handleValue_.Update(serializeValue); JSTaggedValue result = SerializeJSONProperty(handleValue_, replacer); RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSTaggedValue, thread_); if (!result.IsUndefined()) { return JSHandle( factory_->NewFromUtf8Literal(reinterpret_cast(result_.c_str()), result_.size())); } return thread_->GlobalConstants()->GetHandledUndefined(); } void JsonStringifier::AddDeduplicateProp(const JSHandle &property) { uint32_t propLen = propList_.size(); for (uint32_t i = 0; i < propLen; i++) { if (JSTaggedValue::SameValue(propList_[i], property)) { return; } } JSHandle primString = JSTaggedValue::ToString(thread_, property); RETURN_IF_ABRUPT_COMPLETION(thread_); JSHandle addVal(thread_, *primString); propList_.emplace_back(addVal); } bool JsonStringifier::CalculateNumberGap(JSTaggedValue gap) { double numValue = gap.GetNumber(); int num = static_cast(numValue); if (num > 0) { int gapLength = std::min(num, GAP_MAX_LEN); for (int i = 0; i < gapLength; i++) { gap_ += " "; } gap_.append("\0"); } return true; } bool JsonStringifier::CalculateStringGap(const JSHandle &primString) { CString gapString = ConvertToString(*primString, StringConvertedUsage::LOGICOPERATION); uint32_t gapLen = gapString.length(); if (gapLen > 0) { uint32_t gapLength = std::min(gapLen, static_cast(GAP_MAX_LEN)); CString str = gapString.substr(0, gapLength); gap_ += str; gap_.append("\0"); } return true; } JSTaggedValue JsonStringifier::GetSerializeValue(const JSHandle &object, const JSHandle &key, const JSHandle &value, const JSHandle &replacer) { JSTaggedValue tagValue = value.GetTaggedValue(); JSHandle undefined = thread_->GlobalConstants()->GetHandledUndefined(); // If Type(value) is Object, then if (value->IsECMAObject() || value->IsBigInt()) { // a. Let toJSON be Get(value, "toJSON"). JSHandle toJson = thread_->GlobalConstants()->GetHandledToJsonString(); JSHandle toJsonFun( thread_, ObjectFastOperator::FastGetPropertyByValue(thread_, tagValue, toJson.GetTaggedValue())); // b. ReturnIfAbrupt(toJSON). RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread_); tagValue = value.GetTaggedValue(); // c. If IsCallable(toJSON) is true if (UNLIKELY(toJsonFun->IsCallable())) { // Let value be Call(toJSON, value, «key»). EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread_, toJsonFun, value, undefined, 1); RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread_); info->SetCallArg(key.GetTaggedValue()); tagValue = JSFunction::Call(info); // ii. ReturnIfAbrupt(value). RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread_); } } if (UNLIKELY(replacer->IsCallable())) { handleValue_.Update(tagValue); // a. Let value be Call(ReplacerFunction, holder, «key, value»). const int32_t argsLength = 2; // 2: «key, value» EcmaRuntimeCallInfo *info = EcmaInterpreter::NewRuntimeCallInfo(thread_, replacer, object, undefined, argsLength); RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread_); info->SetCallArg(key.GetTaggedValue(), handleValue_.GetTaggedValue()); tagValue = JSFunction::Call(info); // b. ReturnIfAbrupt(value). RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread_); } return tagValue; } JSTaggedValue JsonStringifier::SerializeJSONProperty(const JSHandle &value, const JSHandle &replacer) { JSTaggedValue tagValue = value.GetTaggedValue(); if (!tagValue.IsHeapObject()) { JSTaggedType type = tagValue.GetRawData(); switch (type) { // If value is false, return "false". case JSTaggedValue::VALUE_FALSE: result_ += "false"; return tagValue; // If value is true, return "true". case JSTaggedValue::VALUE_TRUE: result_ += "true"; return tagValue; // If value is null, return "null". case JSTaggedValue::VALUE_NULL: result_ += "null"; return tagValue; default: // If Type(value) is Number, then if (tagValue.IsNumber()) { // a. If value is finite, return ToString(value). if (std::isfinite(tagValue.GetNumber())) { result_ += ConvertToString(*base::NumberHelper::NumberToString(thread_, tagValue)); } else { // b. Else, return "null". result_ += "null"; } return tagValue; } } } else { JSType jsType = tagValue.GetTaggedObject()->GetClass()->GetObjectType(); JSHandle valHandle(thread_, tagValue); switch (jsType) { case JSType::JS_ARRAY: { SerializeJSArray(valHandle, replacer); RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread_); return tagValue; } // If Type(value) is String, return QuoteJSONString(value). case JSType::STRING: { CString str = ConvertToString(*JSHandle(valHandle), StringConvertedUsage::LOGICOPERATION); str = ValueToQuotedString(str); result_ += str; return tagValue; } case JSType::JS_PRIMITIVE_REF: { SerializePrimitiveRef(valHandle); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, JSTaggedValue::Exception()); return tagValue; } case JSType::SYMBOL: return JSTaggedValue::Undefined(); case JSType::BIGINT: { THROW_TYPE_ERROR_AND_RETURN(thread_, "cannot serialize a BigInt", JSTaggedValue::Exception()); } default: { if (!tagValue.IsCallable()) { JSHClass *jsHclass = tagValue.GetTaggedObject()->GetClass(); if (UNLIKELY(jsHclass->IsJSProxy() && JSProxy::Cast(tagValue.GetTaggedObject())->IsArray(thread_))) { SerializeJSProxy(valHandle, replacer); RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread_); } else { SerializeJSONObject(valHandle, replacer); RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread_); } return tagValue; } } } } return JSTaggedValue::Undefined(); } void JsonStringifier::SerializeObjectKey(const JSHandle &key, bool hasContent) { CString stepBegin; CString stepEnd; if (hasContent) { result_ += ","; } if (!gap_.empty()) { stepBegin += "\n"; stepBegin += indent_; stepEnd += " "; } CString str; if (key->IsString()) { str = ConvertToString(EcmaString::Cast(key->GetTaggedObject()), StringConvertedUsage::LOGICOPERATION); } else if (key->IsInt()) { str = NumberHelper::IntToString(static_cast(key->GetInt())); } else { str = ConvertToString(*JSTaggedValue::ToString(thread_, key), StringConvertedUsage::LOGICOPERATION); } result_ += stepBegin; str = ValueToQuotedString(str); result_ += str; result_ += ":"; result_ += stepEnd; } bool JsonStringifier::PushValue(const JSHandle &value) { uint32_t thisLen = stack_.size(); for (uint32_t i = 0; i < thisLen; i++) { bool equal = JSTaggedValue::SameValue(stack_[i].GetTaggedValue(), value.GetTaggedValue()); if (equal) { return true; } } stack_.emplace_back(value); return false; } void JsonStringifier::PopValue() { stack_.pop_back(); } bool JsonStringifier::SerializeJSONObject(const JSHandle &value, const JSHandle &replacer) { bool isContain = PushValue(value); if (isContain) { THROW_TYPE_ERROR_AND_RETURN(thread_, "stack contains value", true); } CString stepback = indent_; indent_ += gap_; result_ += "{"; bool hasContent = false; ASSERT(!value->IsAccessor()); JSHandle obj(value); if (!replacer->IsArray(thread_)) { if (UNLIKELY(value->IsJSProxy() || value->IsTypedArray())) { // serialize proxy and typedArray JSHandle propertyArray = JSObject::EnumerableOwnNames(thread_, obj); uint32_t arrLength = propertyArray->GetLength(); for (uint32_t i = 0; i < arrLength; i++) { handleKey_.Update(propertyArray->Get(i)); JSHandle valueHandle = JSTaggedValue::GetProperty(thread_, value, handleKey_).GetValue(); JSTaggedValue serializeValue = GetSerializeValue(value, handleKey_, valueHandle, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); if (UNLIKELY(serializeValue.IsUndefined() || serializeValue.IsSymbol() || (serializeValue.IsECMAObject() && serializeValue.IsCallable()))) { continue; } handleValue_.Update(serializeValue); SerializeObjectKey(handleKey_, hasContent); JSTaggedValue res = SerializeJSONProperty(handleValue_, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); if (!res.IsUndefined()) { hasContent = true; } } } else { uint32_t numOfKeys = obj->GetNumberOfKeys(); uint32_t numOfElements = obj->GetNumberOfElements(); if (numOfElements > 0) { hasContent = JsonStringifier::SerializeElements(obj, replacer, hasContent); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); } if (numOfKeys > 0) { hasContent = JsonStringifier::SerializeKeys(obj, replacer, hasContent); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); } } } else { uint32_t propLen = propList_.size(); for (uint32_t i = 0; i < propLen; i++) { JSTaggedValue tagVal = ObjectFastOperator::FastGetPropertyByValue(thread_, obj.GetTaggedValue(), propList_[i].GetTaggedValue()); handleValue_.Update(tagVal); JSTaggedValue serializeValue = GetSerializeValue(value, propList_[i], handleValue_, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); if (UNLIKELY(serializeValue.IsUndefined() || serializeValue.IsSymbol() || (serializeValue.IsECMAObject() && serializeValue.IsCallable()))) { continue; } handleValue_.Update(serializeValue); SerializeObjectKey(propList_[i], hasContent); JSTaggedValue res = SerializeJSONProperty(handleValue_, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); if (!res.IsUndefined()) { hasContent = true; } } } if (hasContent && gap_.length() != 0) { result_ += "\n"; result_ += stepback; } result_ += "}"; PopValue(); indent_ = stepback; return true; } bool JsonStringifier::SerializeJSProxy(const JSHandle &object, const JSHandle &replacer) { bool isContain = PushValue(object); if (isContain) { THROW_TYPE_ERROR_AND_RETURN(thread_, "stack contains value", true); } CString stepback = indent_; CString stepBegin; indent_ += gap_; if (!gap_.empty()) { stepBegin += "\n"; stepBegin += indent_; } result_ += "["; JSHandle proxy(object); JSHandle lengthKey = thread_->GlobalConstants()->GetHandledLengthString(); JSHandle lenghHandle = JSProxy::GetProperty(thread_, proxy, lengthKey).GetValue(); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); JSTaggedNumber lenNumber = JSTaggedValue::ToLength(thread_, lenghHandle); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); uint32_t length = lenNumber.ToUint32(); for (uint32_t i = 0; i < length; i++) { handleKey_.Update(JSTaggedValue(i)); JSHandle valHandle = JSProxy::GetProperty(thread_, proxy, handleKey_).GetValue(); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); if (i > 0) { result_ += ","; } result_ += stepBegin; JSTaggedValue serializeValue = GetSerializeValue(object, handleKey_, valHandle, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); handleValue_.Update(serializeValue); JSTaggedValue res = SerializeJSONProperty(handleValue_, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); if (res.IsUndefined()) { result_ += "null"; } } if (length > 0 && !gap_.empty()) { result_ += "\n"; result_ += stepback; } result_ += "]"; PopValue(); indent_ = stepback; return true; } bool JsonStringifier::SerializeJSArray(const JSHandle &value, const JSHandle &replacer) { // If state.[[Stack]] contains value, throw a TypeError exception because the structure is cyclical. bool isContain = PushValue(value); if (isContain) { THROW_TYPE_ERROR_AND_RETURN(thread_, "stack contains value", true); } CString stepback = indent_; CString stepBegin; indent_ += gap_; if (!gap_.empty()) { stepBegin += "\n"; stepBegin += indent_; } result_ += "["; JSHandle jsArr(value); uint32_t len = jsArr->GetArrayLength(); if (len > 0) { for (uint32_t i = 0; i < len; i++) { JSTaggedValue tagVal = ObjectFastOperator::FastGetPropertyByIndex(thread_, value.GetTaggedValue(), i); if (UNLIKELY(tagVal.IsAccessor())) { tagVal = JSObject::CallGetter(thread_, AccessorData::Cast(tagVal.GetTaggedObject()), value); } handleKey_.Update(JSTaggedValue(i)); handleValue_.Update(tagVal); if (i > 0) { result_ += ","; } result_ += stepBegin; JSTaggedValue serializeValue = GetSerializeValue(value, handleKey_, handleValue_, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); handleValue_.Update(serializeValue); JSTaggedValue res = SerializeJSONProperty(handleValue_, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); if (res.IsUndefined()) { result_ += "null"; } } if (!gap_.empty()) { result_ += "\n"; result_ += stepback; } } result_ += "]"; PopValue(); indent_ = stepback; return true; } void JsonStringifier::SerializePrimitiveRef(const JSHandle &primitiveRef) { JSTaggedValue primitive = JSPrimitiveRef::Cast(primitiveRef.GetTaggedValue().GetTaggedObject())->GetValue(); if (primitive.IsString()) { auto priStr = JSTaggedValue::ToString(thread_, primitiveRef); RETURN_IF_ABRUPT_COMPLETION(thread_); CString str = ConvertToString(*priStr, StringConvertedUsage::LOGICOPERATION); str = ValueToQuotedString(str); result_ += str; } else if (primitive.IsNumber()) { auto priNum = JSTaggedValue::ToNumber(thread_, primitiveRef); RETURN_IF_ABRUPT_COMPLETION(thread_); if (std::isfinite(priNum.GetNumber())) { result_ += ConvertToString(*base::NumberHelper::NumberToString(thread_, priNum)); } else { result_ += "null"; } } else if (primitive.IsBoolean()) { result_ += primitive.IsTrue() ? "true" : "false"; } else if (primitive.IsBigInt()) { THROW_TYPE_ERROR(thread_, "cannot serialize a BigInt"); } } bool JsonStringifier::SerializeElements(const JSHandle &obj, const JSHandle &replacer, bool hasContent) { JSHandle elementsArr(thread_, obj->GetElements()); if (!elementsArr->IsDictionaryMode()) { uint32_t elementsLen = elementsArr->GetLength(); for (uint32_t i = 0; i < elementsLen; ++i) { if (!elementsArr->Get(i).IsHole()) { handleKey_.Update(JSTaggedValue(i)); handleValue_.Update(elementsArr->Get(i)); hasContent = JsonStringifier::AppendJsonString(obj, replacer, hasContent); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); } } } else { JSHandle numberDic(elementsArr); CVector> sortArr; int size = numberDic->Size(); for (int hashIndex = 0; hashIndex < size; hashIndex++) { JSTaggedValue key = numberDic->GetKey(hashIndex); if (!key.IsUndefined() && !key.IsHole()) { PropertyAttributes attr = numberDic->GetAttributes(hashIndex); if (attr.IsEnumerable()) { JSTaggedValue numberKey = JSTaggedValue(static_cast(key.GetInt())); sortArr.emplace_back(JSHandle(thread_, numberKey)); } } } std::sort(sortArr.begin(), sortArr.end(), CompareNumber); for (const auto &entry : sortArr) { JSTaggedValue entryKey = entry.GetTaggedValue(); handleKey_.Update(entryKey); int index = numberDic->FindEntry(entryKey); JSTaggedValue value = numberDic->GetValue(index); if (UNLIKELY(value.IsAccessor())) { value = JSObject::CallGetter(thread_, AccessorData::Cast(value.GetTaggedObject()), JSHandle(obj)); } handleValue_.Update(value); hasContent = JsonStringifier::AppendJsonString(obj, replacer, hasContent); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); } } return hasContent; } bool JsonStringifier::SerializeKeys(const JSHandle &obj, const JSHandle &replacer, bool hasContent) { JSHandle propertiesArr(thread_, obj->GetProperties()); if (!propertiesArr->IsDictionaryMode()) { JSHandle jsHclass(thread_, obj->GetJSHClass()); JSTaggedValue enumCache = jsHclass->GetEnumCache(); if (!enumCache.IsNull()) { int propsNumber = static_cast(jsHclass->NumberOfProps()); JSHandle cache(thread_, enumCache); uint32_t length = cache->GetLength(); for (uint32_t i = 0; i < length; i++) { JSTaggedValue key = cache->Get(i); if (!key.IsString()) { continue; } handleKey_.Update(key); JSTaggedValue value; LayoutInfo *layoutInfo = LayoutInfo::Cast(jsHclass->GetLayout().GetTaggedObject()); int index = layoutInfo->FindElementWithCache(thread_, *jsHclass, key, propsNumber); PropertyAttributes attr(layoutInfo->GetAttr(index)); ASSERT(static_cast(attr.GetOffset()) == index); value = attr.IsInlinedProps() ? obj->GetPropertyInlinedProps(static_cast(index)) : propertiesArr->Get(static_cast(index) - jsHclass->GetInlinedProperties()); if (attr.IsInlinedProps() && value.IsHole()) { continue; } if (UNLIKELY(value.IsAccessor())) { value = JSObject::CallGetter(thread_, AccessorData::Cast(value.GetTaggedObject()), JSHandle(obj)); } handleValue_.Update(value); hasContent = JsonStringifier::AppendJsonString(obj, replacer, hasContent); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); } return hasContent; } int end = static_cast(jsHclass->NumberOfProps()); if (end <= 0) { return hasContent; } int propsNumber = static_cast(jsHclass->NumberOfProps()); for (int i = 0; i < end; i++) { LayoutInfo *layoutInfo = LayoutInfo::Cast(jsHclass->GetLayout().GetTaggedObject()); JSTaggedValue key = layoutInfo->GetKey(i); if (key.IsString() && layoutInfo->GetAttr(i).IsEnumerable()) { handleKey_.Update(key); JSTaggedValue value; int index = layoutInfo->FindElementWithCache(thread_, *jsHclass, key, propsNumber); PropertyAttributes attr(layoutInfo->GetAttr(index)); ASSERT(static_cast(attr.GetOffset()) == index); value = attr.IsInlinedProps() ? obj->GetPropertyInlinedProps(static_cast(index)) : propertiesArr->Get(static_cast(index) - jsHclass->GetInlinedProperties()); if (attr.IsInlinedProps() && value.IsHole()) { continue; } if (UNLIKELY(value.IsAccessor())) { value = JSObject::CallGetter(thread_, AccessorData::Cast(value.GetTaggedObject()), JSHandle(obj)); } handleValue_.Update(value); hasContent = JsonStringifier::AppendJsonString(obj, replacer, hasContent); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); } } return hasContent; } JSHandle nameDic(propertiesArr); int size = nameDic->Size(); CVector, PropertyAttributes>> sortArr; for (int hashIndex = 0; hashIndex < size; hashIndex++) { JSTaggedValue key = nameDic->GetKey(hashIndex); if (!key.IsString()) { continue; } PropertyAttributes attr = nameDic->GetAttributes(hashIndex); if (!attr.IsEnumerable()) { continue; } std::pair, PropertyAttributes> pair(JSHandle(thread_, key), attr); sortArr.emplace_back(pair); } std::sort(sortArr.begin(), sortArr.end(), CompareKey); for (const auto &entry : sortArr) { JSTaggedValue entryKey = entry.first.GetTaggedValue(); handleKey_.Update(entryKey); int index = nameDic->FindEntry(entryKey); JSTaggedValue value = nameDic->GetValue(index); if (UNLIKELY(value.IsAccessor())) { value = JSObject::CallGetter(thread_, AccessorData::Cast(value.GetTaggedObject()), JSHandle(obj)); } handleValue_.Update(value); hasContent = JsonStringifier::AppendJsonString(obj, replacer, hasContent); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); } return hasContent; } bool JsonStringifier::AppendJsonString(const JSHandle &obj, const JSHandle &replacer, bool hasContent) { JSTaggedValue serializeValue = GetSerializeValue(JSHandle(obj), handleKey_, handleValue_, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); if (UNLIKELY(serializeValue.IsUndefined() || serializeValue.IsSymbol() || (serializeValue.IsECMAObject() && serializeValue.IsCallable()))) { return hasContent; } handleValue_.Update(serializeValue); SerializeObjectKey(handleKey_, hasContent); JSTaggedValue res = SerializeJSONProperty(handleValue_, replacer); RETURN_VALUE_IF_ABRUPT_COMPLETION(thread_, false); if (!res.IsUndefined()) { return true; } return hasContent; } } // namespace panda::ecmascript::base