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// Copyright 2019 The Exonum Team
//
// 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.

use exonum_derive::*;

/// Common errors emitted by transactions during execution.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd, IntoExecutionError)]
pub enum Error {
    /// Artifact has been already deployed.
    AlreadyDeployed = 0,
    /// Transaction author is not a validator.
    UnknownAuthor = 1,
    /// Deadline exceeded for the current transaction.
    DeadlineExceeded = 2,
    /// Instance with the given name already exists.
    InstanceExists = 3,
    /// Deploy request has been already registered.
    DeployRequestAlreadyRegistered = 4,
    /// Deploy request has not been registered or accepted.
    DeployRequestNotRegistered = 5,
    /// Artifact identifier has incorrect format.
    InvalidArtifactId = 6,
    /// Instance name is incorrect.
    InvalidInstanceName = 7,
    /// Actual height for config proposal is in the past.
    ActualFromIsPast = 8,
    /// Active configuration change proposal already exists.
    ConfigProposeExists = 9,
    /// Malformed configuration change proposal.
    MalformedConfigPropose = 10,
    /// This configuration change proposal is not registered.
    ConfigProposeNotRegistered = 11,
    /// Transaction author attempts to vote twice.
    AttemptToVoteTwice = 12,
    /// Start request contains unknown artifact.
    UnknownArtifact = 13,
    /// Incorrect configuration number.
    IncorrectConfigurationNumber = 14,
}