// Copyright 2021 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_PARSER_OPTIONS_H_ #define THIRD_PARTY_CEL_CPP_PARSER_OPTIONS_H_ #include "absl/base/attributes.h" #include "parser/internal/options.h" namespace cel { // Options for configuring the limits and features of the parser. struct ParserOptions final { // Limit of the number of error recovery attempts made by the ANTLR parser // when processing an input. This limit, when reached, will halt further // parsing of the expression. int error_recovery_limit = ::cel_parser_internal::kDefaultErrorRecoveryLimit; // Limit on the amount of recusive parse instructions permitted when building // the abstract syntax tree for the expression. This prevents pathological // inputs from causing stack overflows. int max_recursion_depth = ::cel_parser_internal::kDefaultMaxRecursionDepth; // Limit on the number of codepoints in the input string which the parser will // attempt to parse. int expression_size_codepoint_limit = ::cel_parser_internal::kExpressionSizeCodepointLimit; // Limit on the number of lookahead tokens to consume when attempting to // recover from an error. int error_recovery_token_lookahead_limit = ::cel_parser_internal::kDefaultErrorRecoveryTokenLookaheadLimit; // Add macro calls to macro_calls list in source_info. bool add_macro_calls = ::cel_parser_internal::kDefaultAddMacroCalls; }; } // namespace cel namespace google::api::expr::parser { using ParserOptions = ::cel::ParserOptions; ABSL_DEPRECATED("Use ParserOptions().error_recovery_limit instead.") inline constexpr int kDefaultErrorRecoveryLimit = ::cel_parser_internal::kDefaultErrorRecoveryLimit; ABSL_DEPRECATED("Use ParserOptions().max_recursion_depth instead.") inline constexpr int kDefaultMaxRecursionDepth = ::cel_parser_internal::kDefaultMaxRecursionDepth; ABSL_DEPRECATED("Use ParserOptions().expression_size_codepoint_limit instead.") inline constexpr int kExpressionSizeCodepointLimit = ::cel_parser_internal::kExpressionSizeCodepointLimit; ABSL_DEPRECATED( "Use ParserOptions().error_recovery_token_lookahead_limit instead.") inline constexpr int kDefaultErrorRecoveryTokenLookaheadLimit = ::cel_parser_internal::kDefaultErrorRecoveryTokenLookaheadLimit; ABSL_DEPRECATED("Use ParserOptions().add_macro_calls instead.") inline constexpr bool kDefaultAddMacroCalls = ::cel_parser_internal::kDefaultAddMacroCalls; } // namespace google::api::expr::parser #endif // THIRD_PARTY_CEL_CPP_PARSER_OPTIONS_H_