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Copy pathadapter_activation_impl.cc
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74 lines (63 loc) · 2.57 KB
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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/adapter_activation_impl.h"
#include <vector>
#include "absl/strings/string_view.h"
#include "absl/types/optional.h"
#include "base/memory.h"
#include "eval/internal/interop.h"
#include "eval/public/cel_value.h"
#include "extensions/protobuf/memory_manager.h"
#include "runtime/function_overload_reference.h"
#include "google/protobuf/arena.h"
namespace cel::interop_internal {
using ::google::api::expr::runtime::CelFunction;
absl::StatusOr<absl::optional<Handle<Value>>>
AdapterActivationImpl::FindVariable(ValueFactory& value_factory,
absl::string_view name) const {
// This implementation should only be used during interop, when we can
// always assume the memory manager is backed by a protobuf arena.
google::protobuf::Arena* arena = extensions::ProtoMemoryManager::CastToProtoArena(
value_factory.memory_manager());
absl::optional<google::api::expr::runtime::CelValue> legacy_value =
legacy_activation_.FindValue(name, arena);
if (!legacy_value.has_value()) {
return absl::nullopt;
}
return LegacyValueToModernValueOrDie(arena, *legacy_value);
}
std::vector<FunctionOverloadReference>
AdapterActivationImpl::FindFunctionOverloads(absl::string_view name) const
ABSL_ATTRIBUTE_LIFETIME_BOUND {
std::vector<const CelFunction*> legacy_candidates =
legacy_activation_.FindFunctionOverloads(name);
std::vector<FunctionOverloadReference> result;
result.reserve(legacy_candidates.size());
for (const auto* candidate : legacy_candidates) {
if (candidate == nullptr) {
continue;
}
result.push_back({candidate->descriptor(), *candidate});
}
return result;
}
absl::Span<const AttributePattern> AdapterActivationImpl::GetUnknownAttributes()
const {
return legacy_activation_.unknown_attribute_patterns();
}
absl::Span<const AttributePattern> AdapterActivationImpl::GetMissingAttributes()
const {
return legacy_activation_.missing_attribute_patterns();
}
} // namespace cel::interop_internal