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/*
* Copyright 2018 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.
*/
#ifndef THIRD_PARTY_CEL_CPP_EVAL_PUBLIC_SOURCE_POSITION_H_
#define THIRD_PARTY_CEL_CPP_EVAL_PUBLIC_SOURCE_POSITION_H_
#include "base/ast_internal.h"
namespace cel {
namespace ast {
namespace internal {
// Class representing the source position as well as line and column data for
// a given expression id.
class SourcePosition {
public:
// Constructor for a SourcePosition value. The source_info may be nullptr,
// in which case line, column, and character_offset will return 0.
SourcePosition(const int64_t expr_id, const SourceInfo* source_info)
: expr_id_(expr_id), source_info_(source_info) {}
// Non-copyable
SourcePosition(const SourcePosition& other) = delete;
SourcePosition& operator=(const SourcePosition& other) = delete;
virtual ~SourcePosition() {}
// Return the 1-based source line number for the expression.
int32_t line() const;
// Return the 1-based column offset within the source line for the
// expression.
int32_t column() const;
// Return the 0-based character offset of the expression within source.
int32_t character_offset() const;
private:
// The expression identifier.
const int64_t expr_id_;
// The source information reference generated during expression parsing.
const SourceInfo* source_info_;
};
} // namespace internal
} // namespace ast
} // namespace cel
#endif // THIRD_PARTY_CEL_CPP_EVAL_PUBLIC_SOURCE_POSITION_H_