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// Copyright 2022 Google LLC
//
// 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
//
// https://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 "eval/internal/interop.h"
#include <string>
#include <utility>
#include <vector>
#include "google/protobuf/arena.h"
#include "absl/base/attributes.h"
#include "absl/container/flat_hash_map.h"
#include "absl/status/status.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/string_view.h"
#include "absl/types/optional.h"
#include "absl/types/variant.h"
#include "base/internal/message_wrapper.h"
#include "base/type_factory.h"
#include "base/type_manager.h"
#include "base/type_provider.h"
#include "base/types/struct_type.h"
#include "base/value.h"
#include "base/value_factory.h"
#include "base/values/list_value.h"
#include "base/values/map_value.h"
#include "base/values/struct_value.h"
#include "eval/internal/errors.h"
#include "eval/public/cel_options.h"
#include "eval/public/structs/legacy_type_adapter.h"
#include "eval/public/structs/legacy_type_info_apis.h"
#include "eval/public/unknown_set.h"
#include "extensions/protobuf/memory_manager.h"
#include "internal/status_macros.h"
namespace cel::interop_internal {
ABSL_ATTRIBUTE_WEAK absl::optional<google::api::expr::runtime::MessageWrapper>
ProtoStructValueToMessageWrapper(const Value& value);
namespace {
using ::cel::base_internal::HandleFactory;
using ::cel::base_internal::InlinedStringViewBytesValue;
using ::cel::base_internal::InlinedStringViewStringValue;
using ::cel::base_internal::LegacyTypeValue;
using ::google::api::expr::runtime::CelList;
using ::google::api::expr::runtime::CelMap;
using ::google::api::expr::runtime::CelValue;
using ::google::api::expr::runtime::LegacyTypeAccessApis;
using ::google::api::expr::runtime::LegacyTypeInfoApis;
using ::google::api::expr::runtime::MessageWrapper;
using ::google::api::expr::runtime::ProtoWrapperTypeOptions;
using ::google::api::expr::runtime::UnknownSet;
class LegacyCelList final : public CelList {
public:
explicit LegacyCelList(Handle<ListValue> impl) : impl_(std::move(impl)) {}
CelValue operator[](int index) const override { return Get(nullptr, index); }
CelValue Get(google::protobuf::Arena* arena, int index) const override {
if (arena == nullptr) {
static const absl::Status* status = []() {
return new absl::Status(absl::InvalidArgumentError(
"CelList::Get must be called with google::protobuf::Arena* for "
"interoperation"));
}();
return CelValue::CreateError(status);
}
// Do not do this at home. This is extremely unsafe, and we only do it for
// interoperation, because we know that references to the below should not
// persist past the return value.
extensions::ProtoMemoryManager memory_manager(arena);
TypeFactory type_factory(memory_manager);
TypeManager type_manager(type_factory, TypeProvider::Builtin());
ValueFactory value_factory(type_manager);
auto value = impl_->Get(ListValue::GetContext(value_factory),
static_cast<size_t>(index));
if (!value.ok()) {
return CelValue::CreateError(
google::protobuf::Arena::Create<absl::Status>(arena, value.status()));
}
auto legacy_value = ToLegacyValue(arena, *value);
if (!legacy_value.ok()) {
return CelValue::CreateError(
google::protobuf::Arena::Create<absl::Status>(arena, legacy_value.status()));
}
return std::move(legacy_value).value();
}
// List size
int size() const override { return static_cast<int>(impl_->size()); }
Handle<ListValue> value() const { return impl_; }
private:
internal::TypeInfo TypeId() const override {
return internal::TypeId<LegacyCelList>();
}
Handle<ListValue> impl_;
};
class LegacyCelMap final : public CelMap {
public:
explicit LegacyCelMap(Handle<MapValue> impl) : impl_(std::move(impl)) {}
absl::optional<CelValue> operator[](CelValue key) const override {
return Get(nullptr, key);
}
absl::optional<CelValue> Get(google::protobuf::Arena* arena,
CelValue key) const override {
if (arena == nullptr) {
static const absl::Status* status = []() {
return new absl::Status(absl::InvalidArgumentError(
"CelMap::Get must be called with google::protobuf::Arena* for "
"interoperation"));
}();
return CelValue::CreateError(status);
}
auto modern_key = FromLegacyValue(arena, key);
if (!modern_key.ok()) {
return CelValue::CreateError(
google::protobuf::Arena::Create<absl::Status>(arena, modern_key.status()));
}
// Do not do this at home. This is extremely unsafe, and we only do it for
// interoperation, because we know that references to the below should not
// persist past the return value.
extensions::ProtoMemoryManager memory_manager(arena);
TypeFactory type_factory(memory_manager);
TypeManager type_manager(type_factory, TypeProvider::Builtin());
ValueFactory value_factory(type_manager);
auto modern_value =
impl_->Get(MapValue::GetContext(value_factory), *modern_key);
if (!modern_value.ok()) {
return CelValue::CreateError(
google::protobuf::Arena::Create<absl::Status>(arena, modern_value.status()));
}
if (!(*modern_value).has_value()) {
return absl::nullopt;
}
auto legacy_value = ToLegacyValue(arena, **modern_value);
if (!legacy_value.ok()) {
return CelValue::CreateError(
google::protobuf::Arena::Create<absl::Status>(arena, legacy_value.status()));
}
return std::move(legacy_value).value();
}
absl::StatusOr<bool> Has(const CelValue& key) const override {
// Do not do this at home. This is extremely unsafe, and we only do it for
// interoperation, because we know that references to the below should not
// persist past the return value.
google::protobuf::Arena arena;
CEL_ASSIGN_OR_RETURN(auto modern_key, FromLegacyValue(&arena, key));
return impl_->Has(MapValue::HasContext(), modern_key);
}
int size() const override { return static_cast<int>(impl_->size()); }
bool empty() const override { return impl_->empty(); }
absl::StatusOr<const CelList*> ListKeys() const override {
return ListKeys(nullptr);
}
absl::StatusOr<const CelList*> ListKeys(google::protobuf::Arena* arena) const override {
if (arena == nullptr) {
return absl::InvalidArgumentError(
"CelMap::ListKeys must be called with google::protobuf::Arena* for "
"interoperation");
}
// Do not do this at home. This is extremely unsafe, and we only do it for
// interoperation, because we know that references to the below should not
// persist past the return value.
extensions::ProtoMemoryManager memory_manager(arena);
TypeFactory type_factory(memory_manager);
TypeManager type_manager(type_factory, TypeProvider::Builtin());
ValueFactory value_factory(type_manager);
CEL_ASSIGN_OR_RETURN(
auto list_keys,
impl_->ListKeys(MapValue::ListKeysContext(value_factory)));
CEL_ASSIGN_OR_RETURN(auto legacy_list_keys,
ToLegacyValue(arena, list_keys));
return legacy_list_keys.ListOrDie();
}
Handle<MapValue> value() const { return impl_; }
private:
internal::TypeInfo TypeId() const override {
return internal::TypeId<LegacyCelMap>();
}
Handle<MapValue> impl_;
};
absl::StatusOr<Handle<Value>> LegacyStructGetFieldImpl(
const MessageWrapper& wrapper, absl::string_view field,
bool unbox_null_wrapper_types, MemoryManager& memory_manager) {
const LegacyTypeAccessApis* access_api =
wrapper.legacy_type_info()->GetAccessApis(wrapper);
if (access_api == nullptr) {
return interop_internal::CreateErrorValueFromView(
interop_internal::CreateNoSuchFieldError(memory_manager, field));
}
CEL_ASSIGN_OR_RETURN(
auto legacy_value,
access_api->GetField(field, wrapper,
unbox_null_wrapper_types
? ProtoWrapperTypeOptions::kUnsetNull
: ProtoWrapperTypeOptions::kUnsetProtoDefault,
memory_manager));
return FromLegacyValue(
extensions::ProtoMemoryManager::CastToProtoArena(memory_manager),
legacy_value);
}
} // namespace
internal::TypeInfo CelListAccess::TypeId(const CelList& list) {
return list.TypeId();
}
internal::TypeInfo CelMapAccess::TypeId(const CelMap& map) {
return map.TypeId();
}
Handle<StructType> LegacyStructTypeAccess::Create(uintptr_t message) {
return base_internal::HandleFactory<StructType>::Make<
base_internal::LegacyStructType>(message);
}
Handle<StructValue> LegacyStructValueAccess::Create(
const MessageWrapper& wrapper) {
return Create(MessageWrapperAccess::Message(wrapper),
MessageWrapperAccess::TypeInfo(wrapper));
}
Handle<StructValue> LegacyStructValueAccess::Create(uintptr_t message,
uintptr_t type_info) {
return base_internal::HandleFactory<StructValue>::Make<
base_internal::LegacyStructValue>(message, type_info);
}
uintptr_t LegacyStructValueAccess::Message(
const base_internal::LegacyStructValue& value) {
return value.msg_;
}
uintptr_t LegacyStructValueAccess::TypeInfo(
const base_internal::LegacyStructValue& value) {
return value.type_info_;
}
MessageWrapper LegacyStructValueAccess::ToMessageWrapper(
const base_internal::LegacyStructValue& value) {
return MessageWrapperAccess::Make(Message(value), TypeInfo(value));
}
uintptr_t MessageWrapperAccess::Message(const MessageWrapper& wrapper) {
return wrapper.message_ptr_;
}
uintptr_t MessageWrapperAccess::TypeInfo(const MessageWrapper& wrapper) {
return reinterpret_cast<uintptr_t>(wrapper.legacy_type_info_);
}
MessageWrapper MessageWrapperAccess::Make(uintptr_t message,
uintptr_t type_info) {
return MessageWrapper(message,
reinterpret_cast<const LegacyTypeInfoApis*>(type_info));
}
MessageWrapper::Builder MessageWrapperAccess::ToBuilder(
MessageWrapper& wrapper) {
return wrapper.ToBuilder();
}
Handle<TypeValue> CreateTypeValueFromView(absl::string_view input) {
return HandleFactory<TypeValue>::Make<LegacyTypeValue>(input);
}
Handle<ListValue> CreateLegacyListValue(const CelList* value) {
if (CelListAccess::TypeId(*value) == internal::TypeId<LegacyCelList>()) {
// Fast path.
return static_cast<const LegacyCelList*>(value)->value();
}
return HandleFactory<ListValue>::Make<base_internal::LegacyListValue>(
reinterpret_cast<uintptr_t>(value));
}
Handle<MapValue> CreateLegacyMapValue(const CelMap* value) {
if (CelMapAccess::TypeId(*value) == internal::TypeId<LegacyCelMap>()) {
// Fast path.
return static_cast<const LegacyCelMap*>(value)->value();
}
return HandleFactory<MapValue>::Make<base_internal::LegacyMapValue>(
reinterpret_cast<uintptr_t>(value));
}
base_internal::StringValueRep GetStringValueRep(
const Handle<StringValue>& value) {
return value->rep();
}
base_internal::BytesValueRep GetBytesValueRep(const Handle<BytesValue>& value) {
return value->rep();
}
absl::StatusOr<Handle<Value>> FromLegacyValue(google::protobuf::Arena* arena,
const CelValue& legacy_value,
bool unchecked) {
switch (legacy_value.type()) {
case CelValue::Type::kNullType:
return CreateNullValue();
case CelValue::Type::kBool:
return CreateBoolValue(legacy_value.BoolOrDie());
case CelValue::Type::kInt64:
return CreateIntValue(legacy_value.Int64OrDie());
case CelValue::Type::kUint64:
return CreateUintValue(legacy_value.Uint64OrDie());
case CelValue::Type::kDouble:
return CreateDoubleValue(legacy_value.DoubleOrDie());
case CelValue::Type::kString:
return CreateStringValueFromView(legacy_value.StringOrDie().value());
case CelValue::Type::kBytes:
return CreateBytesValueFromView(legacy_value.BytesOrDie().value());
case CelValue::Type::kMessage: {
const auto& wrapper = legacy_value.MessageWrapperOrDie();
return LegacyStructValueAccess::Create(
MessageWrapperAccess::Message(wrapper),
MessageWrapperAccess::TypeInfo(wrapper));
}
case CelValue::Type::kDuration:
return CreateDurationValue(legacy_value.DurationOrDie(), unchecked);
case CelValue::Type::kTimestamp:
return CreateTimestampValue(legacy_value.TimestampOrDie());
case CelValue::Type::kList:
return CreateLegacyListValue(legacy_value.ListOrDie());
case CelValue::Type::kMap:
return CreateLegacyMapValue(legacy_value.MapOrDie());
case CelValue::Type::kUnknownSet:
return CreateUnknownValueFromView(legacy_value.UnknownSetOrDie());
case CelValue::Type::kCelType:
return CreateTypeValueFromView(legacy_value.CelTypeOrDie().value());
case CelValue::Type::kError:
return CreateErrorValueFromView(legacy_value.ErrorOrDie());
case CelValue::Type::kAny:
return absl::InternalError(absl::StrCat(
"illegal attempt to convert special CelValue type ",
CelValue::TypeName(legacy_value.type()), " to cel::Value"));
default:
break;
}
return absl::UnimplementedError(absl::StrCat(
"conversion from CelValue to cel::Value for type ",
CelValue::TypeName(legacy_value.type()), " is not yet implemented"));
}
namespace {
struct BytesValueToLegacyVisitor final {
google::protobuf::Arena* arena;
absl::StatusOr<CelValue> operator()(absl::string_view value) const {
return CelValue::CreateBytesView(value);
}
absl::StatusOr<CelValue> operator()(const absl::Cord& value) const {
return CelValue::CreateBytes(google::protobuf::Arena::Create<std::string>(
arena, static_cast<std::string>(value)));
}
};
struct StringValueToLegacyVisitor final {
google::protobuf::Arena* arena;
absl::StatusOr<CelValue> operator()(absl::string_view value) const {
return CelValue::CreateStringView(value);
}
absl::StatusOr<CelValue> operator()(const absl::Cord& value) const {
return CelValue::CreateString(google::protobuf::Arena::Create<std::string>(
arena, static_cast<std::string>(value)));
}
};
} // namespace
struct ErrorValueAccess final {
static const absl::Status* value_ptr(const ErrorValue& value) {
return value.value_ptr_;
}
};
struct UnknownValueAccess final {
static const base_internal::UnknownSet& value(const UnknownValue& value) {
return value.value_;
}
static const base_internal::UnknownSet* value_ptr(const UnknownValue& value) {
return value.value_ptr_;
}
};
absl::StatusOr<CelValue> ToLegacyValue(google::protobuf::Arena* arena,
const Handle<Value>& value,
bool unchecked) {
switch (value->kind()) {
case Kind::kNullType:
return CelValue::CreateNull();
case Kind::kError: {
if (base_internal::Metadata::IsTrivial(*value)) {
return CelValue::CreateError(
ErrorValueAccess::value_ptr(*value.As<ErrorValue>()));
}
return CelValue::CreateError(google::protobuf::Arena::Create<absl::Status>(
arena, value.As<ErrorValue>()->value()));
}
case Kind::kDyn:
break;
case Kind::kAny:
break;
case Kind::kType:
// Should be fine, so long as we are using an arena allocator.
// We can only transport legacy type values.
if (base_internal::Metadata::GetInlineVariant<
base_internal::InlinedTypeValueVariant>(*value) !=
base_internal::InlinedTypeValueVariant::kLegacy) {
return absl::UnimplementedError(
"only legacy type values can be used for interop");
}
return CelValue::CreateCelTypeView(value.As<TypeValue>()->name());
case Kind::kBool:
return CelValue::CreateBool(value.As<BoolValue>()->value());
case Kind::kInt:
return CelValue::CreateInt64(value.As<IntValue>()->value());
case Kind::kUint:
return CelValue::CreateUint64(value.As<UintValue>()->value());
case Kind::kDouble:
return CelValue::CreateDouble(value.As<DoubleValue>()->value());
case Kind::kString:
return absl::visit(StringValueToLegacyVisitor{arena},
GetStringValueRep(value.As<StringValue>()));
case Kind::kBytes:
return absl::visit(BytesValueToLegacyVisitor{arena},
GetBytesValueRep(value.As<BytesValue>()));
case Kind::kEnum:
break;
case Kind::kDuration:
return unchecked
? CelValue::CreateUncheckedDuration(
value.As<DurationValue>()->value())
: CelValue::CreateDuration(value.As<DurationValue>()->value());
case Kind::kTimestamp:
return CelValue::CreateTimestamp(value.As<TimestampValue>()->value());
case Kind::kList: {
if (value->Is<base_internal::LegacyListValue>()) {
// Fast path.
return CelValue::CreateList(reinterpret_cast<const CelList*>(
value.As<base_internal::LegacyListValue>()->value()));
}
return CelValue::CreateList(
google::protobuf::Arena::Create<LegacyCelList>(arena, value.As<ListValue>()));
}
case Kind::kMap: {
if (value->Is<base_internal::LegacyMapValue>()) {
// Fast path.
return CelValue::CreateMap(reinterpret_cast<const CelMap*>(
value.As<base_internal::LegacyMapValue>()->value()));
}
return CelValue::CreateMap(
google::protobuf::Arena::Create<LegacyCelMap>(arena, value.As<MapValue>()));
}
case Kind::kStruct: {
if (value->Is<base_internal::LegacyStructValue>()) {
// "Legacy".
uintptr_t message = LegacyStructValueAccess::Message(
*value.As<base_internal::LegacyStructValue>());
uintptr_t type_info = LegacyStructValueAccess::TypeInfo(
*value.As<base_internal::LegacyStructValue>());
return CelValue::CreateMessageWrapper(
MessageWrapperAccess::Make(message, type_info));
}
if (ProtoStructValueToMessageWrapper) {
auto maybe_message_wrapper = ProtoStructValueToMessageWrapper(*value);
if (maybe_message_wrapper.has_value()) {
return CelValue::CreateMessageWrapper(
std::move(maybe_message_wrapper).value());
}
}
return absl::UnimplementedError(
"only legacy struct types and values can be used for interop");
}
case Kind::kUnknown: {
if (base_internal::Metadata::IsTrivial(*value)) {
return CelValue::CreateUnknownSet(
UnknownValueAccess::value_ptr(*value.As<UnknownValue>()));
}
return CelValue::CreateUnknownSet(
google::protobuf::Arena::Create<base_internal::UnknownSet>(
arena, UnknownValueAccess::value(*value.As<UnknownValue>())));
}
default:
break;
}
return absl::UnimplementedError(
absl::StrCat("conversion from cel::Value to CelValue for type ",
KindToString(value->kind()), " is not yet implemented"));
}
Handle<NullValue> CreateNullValue() {
return HandleFactory<NullValue>::Make<NullValue>();
}
Handle<BoolValue> CreateBoolValue(bool value) {
return HandleFactory<BoolValue>::Make<BoolValue>(value);
}
Handle<IntValue> CreateIntValue(int64_t value) {
return HandleFactory<IntValue>::Make<IntValue>(value);
}
Handle<UintValue> CreateUintValue(uint64_t value) {
return HandleFactory<UintValue>::Make<UintValue>(value);
}
Handle<DoubleValue> CreateDoubleValue(double value) {
return HandleFactory<DoubleValue>::Make<DoubleValue>(value);
}
Handle<StringValue> CreateStringValueFromView(absl::string_view value) {
return HandleFactory<StringValue>::Make<InlinedStringViewStringValue>(value);
}
Handle<BytesValue> CreateBytesValueFromView(absl::string_view value) {
return HandleFactory<BytesValue>::Make<InlinedStringViewBytesValue>(value);
}
Handle<Value> CreateDurationValue(absl::Duration value, bool unchecked) {
if (!unchecked && (value >= kDurationHigh || value <= kDurationLow)) {
return CreateErrorValueFromView(DurationOverflowError());
}
return HandleFactory<DurationValue>::Make<DurationValue>(value);
}
Handle<TimestampValue> CreateTimestampValue(absl::Time value) {
return HandleFactory<TimestampValue>::Make<TimestampValue>(value);
}
Handle<ErrorValue> CreateErrorValueFromView(const absl::Status* value) {
return HandleFactory<ErrorValue>::Make<ErrorValue>(value);
}
Handle<UnknownValue> CreateUnknownValueFromView(
const base_internal::UnknownSet* value) {
return HandleFactory<UnknownValue>::Make<UnknownValue>(value);
}
Handle<Value> LegacyValueToModernValueOrDie(
google::protobuf::Arena* arena, const google::api::expr::runtime::CelValue& value,
bool unchecked) {
auto modern_value = FromLegacyValue(arena, value, unchecked);
ABSL_CHECK_OK(modern_value); // Crash OK
return std::move(modern_value).value();
}
Handle<Value> LegacyValueToModernValueOrDie(
MemoryManager& memory_manager,
const google::api::expr::runtime::CelValue& value, bool unchecked) {
return LegacyValueToModernValueOrDie(
extensions::ProtoMemoryManager::CastToProtoArena(memory_manager), value,
unchecked);
}
std::vector<Handle<Value>> LegacyValueToModernValueOrDie(
google::protobuf::Arena* arena,
absl::Span<const google::api::expr::runtime::CelValue> values,
bool unchecked) {
std::vector<Handle<Value>> modern_values;
modern_values.reserve(values.size());
for (const auto& value : values) {
modern_values.push_back(
LegacyValueToModernValueOrDie(arena, value, unchecked));
}
return modern_values;
}
std::vector<Handle<Value>> LegacyValueToModernValueOrDie(
MemoryManager& memory_manager,
absl::Span<const google::api::expr::runtime::CelValue> values,
bool unchecked) {
return LegacyValueToModernValueOrDie(
extensions::ProtoMemoryManager::CastToProtoArena(memory_manager), values);
}
google::api::expr::runtime::CelValue ModernValueToLegacyValueOrDie(
google::protobuf::Arena* arena, const Handle<Value>& value, bool unchecked) {
auto legacy_value = ToLegacyValue(arena, value, unchecked);
ABSL_CHECK_OK(legacy_value); // Crash OK
return std::move(legacy_value).value();
}
google::api::expr::runtime::CelValue ModernValueToLegacyValueOrDie(
MemoryManager& memory_manager, const Handle<Value>& value, bool unchecked) {
return ModernValueToLegacyValueOrDie(
extensions::ProtoMemoryManager::CastToProtoArena(memory_manager), value,
unchecked);
}
std::vector<google::api::expr::runtime::CelValue> ModernValueToLegacyValueOrDie(
google::protobuf::Arena* arena, absl::Span<const Handle<Value>> values,
bool unchecked) {
std::vector<google::api::expr::runtime::CelValue> legacy_values;
legacy_values.reserve(values.size());
for (const auto& value : values) {
legacy_values.push_back(
ModernValueToLegacyValueOrDie(arena, value, unchecked));
}
return legacy_values;
}
std::vector<google::api::expr::runtime::CelValue> ModernValueToLegacyValueOrDie(
MemoryManager& memory_manager, absl::Span<const Handle<Value>> values,
bool unchecked) {
return ModernValueToLegacyValueOrDie(
extensions::ProtoMemoryManager::CastToProtoArena(memory_manager), values,
unchecked);
}
} // namespace cel::interop_internal
namespace cel::base_internal {
namespace {
using ::cel::interop_internal::FromLegacyValue;
using ::cel::interop_internal::LegacyStructValueAccess;
using ::cel::interop_internal::MessageWrapperAccess;
using ::cel::interop_internal::ToLegacyValue;
using ::google::api::expr::runtime::CelList;
using ::google::api::expr::runtime::CelMap;
using ::google::api::expr::runtime::CelValue;
using ::google::api::expr::runtime::LegacyTypeAccessApis;
using ::google::api::expr::runtime::LegacyTypeInfoApis;
using ::google::api::expr::runtime::MessageWrapper;
} // namespace
absl::string_view MessageTypeName(uintptr_t msg) {
if ((msg & kMessageWrapperTagMask) != kMessageWrapperTagMask) {
// For google::protobuf::MessageLite, this is actually LegacyTypeInfoApis.
return reinterpret_cast<const LegacyTypeInfoApis*>(msg)->GetTypename(
MessageWrapper());
}
return reinterpret_cast<const google::protobuf::Message*>(msg & kMessageWrapperPtrMask)
->GetDescriptor()
->full_name();
}
void MessageValueHash(uintptr_t msg, uintptr_t type_info,
absl::HashState state) {
// Getting rid of hash, do nothing.
}
bool MessageValueEquals(uintptr_t lhs_msg, uintptr_t lhs_type_info,
const Value& rhs) {
if (!LegacyStructValue::Is(rhs)) {
return false;
}
auto lhs_message_wrapper = MessageWrapperAccess::Make(lhs_msg, lhs_type_info);
const LegacyTypeAccessApis* access_api =
lhs_message_wrapper.legacy_type_info()->GetAccessApis(
lhs_message_wrapper);
if (access_api == nullptr) {
return false;
}
return access_api->IsEqualTo(
lhs_message_wrapper,
LegacyStructValueAccess::ToMessageWrapper(
static_cast<const base_internal::LegacyStructValue&>(rhs)));
}
size_t MessageValueFieldCount(uintptr_t msg, uintptr_t type_info) {
auto message_wrapper = MessageWrapperAccess::Make(msg, type_info);
if (message_wrapper.message_ptr() == nullptr) {
return 0;
}
const LegacyTypeAccessApis* access_api =
message_wrapper.legacy_type_info()->GetAccessApis(message_wrapper);
return access_api->ListFields(message_wrapper).size();
}
std::vector<absl::string_view> MessageValueListFields(uintptr_t msg,
uintptr_t type_info) {
auto message_wrapper = MessageWrapperAccess::Make(msg, type_info);
if (message_wrapper.message_ptr() == nullptr) {
return std::vector<absl::string_view>{};
}
const LegacyTypeAccessApis* access_api =
message_wrapper.legacy_type_info()->GetAccessApis(message_wrapper);
return access_api->ListFields(message_wrapper);
}
absl::StatusOr<bool> MessageValueHasFieldByNumber(uintptr_t msg,
uintptr_t type_info,
int64_t number) {
return absl::UnimplementedError(
"legacy struct values do not support looking up fields by number");
}
absl::StatusOr<bool> MessageValueHasFieldByName(uintptr_t msg,
uintptr_t type_info,
absl::string_view name) {
auto wrapper = MessageWrapperAccess::Make(msg, type_info);
const LegacyTypeAccessApis* access_api =
wrapper.legacy_type_info()->GetAccessApis(wrapper);
if (access_api == nullptr) {
return absl::NotFoundError(
absl::StrCat(interop_internal::kErrNoSuchField, ": ", name));
}
return access_api->HasField(name, wrapper);
}
absl::StatusOr<Handle<Value>> MessageValueGetFieldByNumber(
uintptr_t msg, uintptr_t type_info, ValueFactory& value_factory,
int64_t number, bool unbox_null_wrapper_types) {
return absl::UnimplementedError(
"legacy struct values do not supported looking up fields by number");
}
absl::StatusOr<Handle<Value>> MessageValueGetFieldByName(
uintptr_t msg, uintptr_t type_info, ValueFactory& value_factory,
absl::string_view name, bool unbox_null_wrapper_types) {
auto wrapper = MessageWrapperAccess::Make(msg, type_info);
return interop_internal::LegacyStructGetFieldImpl(
wrapper, name, unbox_null_wrapper_types, value_factory.memory_manager());
}
absl::StatusOr<Handle<Value>> LegacyListValueGet(uintptr_t impl,
ValueFactory& value_factory,
size_t index) {
auto* arena = extensions::ProtoMemoryManager::CastToProtoArena(
value_factory.memory_manager());
return FromLegacyValue(arena, reinterpret_cast<const CelList*>(impl)->Get(
arena, static_cast<int>(index)));
}
size_t LegacyListValueSize(uintptr_t impl) {
return reinterpret_cast<const CelList*>(impl)->size();
}
bool LegacyListValueEmpty(uintptr_t impl) {
return reinterpret_cast<const CelList*>(impl)->empty();
}
size_t LegacyMapValueSize(uintptr_t impl) {
return reinterpret_cast<const CelMap*>(impl)->size();
}
bool LegacyMapValueEmpty(uintptr_t impl) {
return reinterpret_cast<const CelMap*>(impl)->empty();
}
absl::StatusOr<absl::optional<Handle<Value>>> LegacyMapValueGet(
uintptr_t impl, ValueFactory& value_factory, const Handle<Value>& key) {
auto* arena = extensions::ProtoMemoryManager::CastToProtoArena(
value_factory.memory_manager());
CEL_ASSIGN_OR_RETURN(auto legacy_key, ToLegacyValue(arena, key));
auto legacy_value =
reinterpret_cast<const CelMap*>(impl)->Get(arena, legacy_key);
if (!legacy_value.has_value()) {
return absl::nullopt;
}
return FromLegacyValue(arena, *legacy_value);
}
absl::StatusOr<bool> LegacyMapValueHas(uintptr_t impl,
const Handle<Value>& key) {
google::protobuf::Arena arena;
CEL_ASSIGN_OR_RETURN(auto legacy_key, ToLegacyValue(&arena, key));
return reinterpret_cast<const CelMap*>(impl)->Has(legacy_key);
}
absl::StatusOr<Handle<ListValue>> LegacyMapValueListKeys(
uintptr_t impl, ValueFactory& value_factory) {
auto* arena = extensions::ProtoMemoryManager::CastToProtoArena(
value_factory.memory_manager());
CEL_ASSIGN_OR_RETURN(auto legacy_list_keys,
reinterpret_cast<const CelMap*>(impl)->ListKeys(arena));
CEL_ASSIGN_OR_RETURN(
auto list_keys,
FromLegacyValue(arena, CelValue::CreateList(legacy_list_keys)));
return list_keys.As<ListValue>();
}
} // namespace cel::base_internal