echodb 0.8.0

An embedded, in-memory, immutable, copy-on-write database engine
Documentation 
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// Copyright © SurrealDB Ltd
//
// 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.

//! This module stores the database error types.

use thiserror::Error;

/// The errors which can be emitted from a database.
#[derive(Error, Debug)]
pub enum Error {
	#[error("Can not open transaction")]
	DbError,

	#[error("Transaction is closed")]
	TxClosed,

	#[error("Transaction is not writable")]
	TxNotWritable,

	#[error("Key being inserted already exists")]
	KeyAlreadyExists,

	#[error("Value being checked was not correct")]
	ValNotExpectedValue,
}