mirror of
https://github.com/fluencelabs/marine.git
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104 lines
3.2 KiB
Rust
104 lines
3.2 KiB
Rust
/*
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* Copyright 2020 Fluence Labs Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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use fce::FCEError;
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use serde_json::error::Error as SerdeError;
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use std::io::Error as IOError;
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use std::error::Error;
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#[derive(Debug)]
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pub enum FaaSError {
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/// An error related to config parsing.
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ConfigParseError(String),
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/// An error occurred at the instantiation step.
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InstantiationError(String),
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/// Various errors related to file i/o.
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IOError(String),
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/// A function with specified name is missing.
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MissingFunctionError(String),
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/// An argument with specified name is missing.
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MissingArgumentError(String),
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/// Returns when there is no module with such name.
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NoSuchModule(String),
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/// Not enough arguments provided for FCE call.
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JsonArgumentsDeserializationError(String),
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/// An error occurred when incorrect json argument is supplied.
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ArgumentDeserializationError(SerdeError),
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/// FCE errors.
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EngineError(FCEError),
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ParseConfigError(toml::de::Error),
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}
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impl Error for FaaSError {}
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impl std::fmt::Display for FaaSError {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
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match self {
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FaaSError::ConfigParseError(err_msg) => write!(f, "{}", err_msg),
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FaaSError::InstantiationError(err_msg) => write!(f, "{}", err_msg),
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FaaSError::MissingFunctionError(func_name) => {
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write!(f, "function with name `{}` is missing", func_name)
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}
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FaaSError::MissingArgumentError(arg_name) => {
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write!(f, r#"argument with name "{}" is missing"#, arg_name)
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}
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FaaSError::NoSuchModule(module_name) => {
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write!(f, r#"module with name "{}" is missing"#, module_name)
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}
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FaaSError::JsonArgumentsDeserializationError(args) => write!(f, "{}", args),
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FaaSError::ArgumentDeserializationError(err_msg) => write!(f, "{:?}", err_msg),
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FaaSError::IOError(err_msg) => write!(f, "{}", err_msg),
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FaaSError::EngineError(err) => write!(f, "{}", err),
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FaaSError::ParseConfigError(err) => write!(f, "{}", err),
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}
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}
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}
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impl From<IOError> for FaaSError {
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fn from(err: IOError) -> Self {
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FaaSError::IOError(format!("{}", err))
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}
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}
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impl From<FCEError> for FaaSError {
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fn from(err: FCEError) -> Self {
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FaaSError::EngineError(err)
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}
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}
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impl From<toml::de::Error> for FaaSError {
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fn from(err: toml::de::Error) -> Self {
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FaaSError::ConfigParseError(format!("{}", err))
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}
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}
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impl From<std::convert::Infallible> for FaaSError {
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fn from(_: std::convert::Infallible) -> Self {
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unreachable!()
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}
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}
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