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/*
* Copyright 2025 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
*
* 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.
*/
#ifndef THIRD_PARTY_CEL_PYTHON_PY_CEL_ENV_H_
#define THIRD_PARTY_CEL_PYTHON_PY_CEL_ENV_H_
#include <Python.h> // IWYU pragma: keep - Needed for PyObject
#include <memory>
#include <string>
#include <unordered_map>
#include <vector>
#include "common/container.h"
#include "cel_expr_python/py_cel_activation.h"
#include "cel_expr_python/py_cel_arena.h"
#include "cel_expr_python/py_cel_env_config.h"
#include "cel_expr_python/py_cel_expression.h"
#include "cel_expr_python/py_cel_function.h"
#include "cel_expr_python/py_cel_function_decl.h"
#include "cel_expr_python/py_cel_type.h"
#include <pybind11/pybind11.h>
namespace cel {
class ParserBuilder;
class TypeCheckerBuilder;
class RuntimeBuilder;
class RuntimeOptions;
} // namespace cel
// All classes and functions in this namespace are pybind11-wrapped.
namespace cel_python {
class PyCelEnvInternal;
class PyCelFunction;
class PyMessageFactory;
// CEL environment. Provides access to the CEL compiler.
class PyCelEnv {
public:
static void DefinePythonBindings(pybind11::module& m);
~PyCelEnv();
// May throw exceptions.
PyCelExpression Compile(const std::string& cel_expr,
bool disable_check = false);
// May throw exceptions.
PyCelExpression Deserialize(const std::string& serialized_expr);
std::shared_ptr<PyCelActivation> NewActivation(
const std::unordered_map<std::string, PyObject*>& data,
const std::vector<std::shared_ptr<PyCelFunction>>& functions,
const std::shared_ptr<PyCelArena>& arena);
std::shared_ptr<PyCelEnvInternal> GetEnv() { return env_; }
private:
// Private constructor. Use `py_cel.NewEnv()` in python to obtain an instance.
PyCelEnv(const PyCelEnvConfig& config, PyObject* descriptor_pool,
const std::unordered_map<std::string, PyCelType>& variable_types,
const std::vector<PyObject*>& extensions,
cel::ExpressionContainer container,
const std::vector<std::shared_ptr<PyCelFunctionDecl>>& functions,
const std::unordered_map<std::string, py::object>& function_impls);
std::shared_ptr<PyCelEnvInternal> env_;
};
} // namespace cel_python
#endif // THIRD_PARTY_CEL_PYTHON_PY_CEL_ENV_H_