// Copyright 2023 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.

syntax = "proto3";

package google.ads.googleads.v16.errors;

option csharp_namespace = "Google.Ads.GoogleAds.V16.Errors";
option go_package = "google.golang.org/genproto/googleapis/ads/googleads/v16/errors;errors";
option java_multiple_files = true;
option java_outer_classname = "FunctionParsingErrorProto";
option java_package = "com.google.ads.googleads.v16.errors";
option objc_class_prefix = "GAA";
option php_namespace = "Google\\Ads\\GoogleAds\\V16\\Errors";
option ruby_package = "Google::Ads::GoogleAds::V16::Errors";

// Proto file describing function parsing errors.

// Container for enum describing possible function parsing errors.
message FunctionParsingErrorEnum {
  // Enum describing possible function parsing errors.
  enum FunctionParsingError {
    // Enum unspecified.
    UNSPECIFIED = 0;

    // The received error code is not known in this version.
    UNKNOWN = 1;

    // Unexpected end of function string.
    NO_MORE_INPUT = 2;

    // Could not find an expected character.
    EXPECTED_CHARACTER = 3;

    // Unexpected separator character.
    UNEXPECTED_SEPARATOR = 4;

    // Unmatched left bracket or parenthesis.
    UNMATCHED_LEFT_BRACKET = 5;

    // Unmatched right bracket or parenthesis.
    UNMATCHED_RIGHT_BRACKET = 6;

    // Functions are nested too deeply.
    TOO_MANY_NESTED_FUNCTIONS = 7;

    // Missing right-hand-side operand.
    MISSING_RIGHT_HAND_OPERAND = 8;

    // Invalid operator/function name.
    INVALID_OPERATOR_NAME = 9;

    // Feed attribute operand's argument is not an integer.
    FEED_ATTRIBUTE_OPERAND_ARGUMENT_NOT_INTEGER = 10;

    // Missing function operands.
    NO_OPERANDS = 11;

    // Function had too many operands.
    TOO_MANY_OPERANDS = 12;
  }
}