flaggy_values/
error.rs

1// Copyright 2015 Axel Rasmussen
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use thiserror::Error;
16
17#[derive(Debug, Error)]
18pub enum ValueError {
19    /// A malformed boolean value was found.
20    #[error("Invalid boolean value '{0}'")]
21    BadBoolean(String),
22    /// A `Command` callback parameter was of the wrong type, so flag value
23    /// passing failed.
24    #[error("Incorrect command callback parameter: {0}")]
25    CallbackParameter(String),
26    /// No command was specified.
27    #[error("No command specified")]
28    MissingCommand,
29    /// A required flag was not provided.
30    #[error("No value provided for required flag '{0}'")]
31    MissingFlag(String),
32    /// A flag was provided with no associated value.
33    #[error("Flag '{0}' provided without any value")]
34    MissingValue(String),
35    /// An unrecognized command was provided.
36    #[error("Unknown command '{0}'")]
37    UnknownCommand(String),
38    /// An unrecognized flag was provided.
39    #[error("Unknown flag '{0}'")]
40    UnknownFlag(String),
41}
42
43pub type ValueResult<T> = Result<T, ValueError>;
flaggy_values/error.rs

flaggy_values/
error.rs
