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/*
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* meli - error module
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*
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* Copyright 2017 Manos Pitsidianakis
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*
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* This file is part of meli.
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*
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* meli is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* meli is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with meli. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*!
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* An error object for `melib`
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*/
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use std::borrow::Cow;
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use std::error::Error;
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use std::fmt;
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use std::io;
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use std::result;
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use std::str;
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use std::string;
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use std::sync::Arc;
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use nom;
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pub type Result<T> = result::Result<T, MeliError>;
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#[derive(Debug, Clone)]
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pub struct MeliError {
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pub summary: Option<Cow<'static, str>>,
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pub details: Cow<'static, str>,
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pub source: Option<std::sync::Arc<dyn Error + Send + Sync + 'static>>,
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}
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impl MeliError {
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pub fn new<M>(msg: M) -> MeliError
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where
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M: Into<Cow<'static, str>>,
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{
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MeliError {
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summary: None,
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details: msg.into(),
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source: None,
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}
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}
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pub fn set_summary<M>(mut self, summary: M) -> MeliError
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where
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M: Into<Cow<'static, str>>,
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{
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self.summary = Some(summary.into());
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self
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}
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pub fn set_source(
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mut self,
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new_val: Option<std::sync::Arc<dyn Error + Send + Sync + 'static>>,
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) -> MeliError {
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self.source = new_val;
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self
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}
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}
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impl fmt::Display for MeliError {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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if let Some(summary) = self.summary.as_ref() {
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write!(f, "Summary: {}\n", summary)?;
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}
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let ret = write!(f, "{}", self.details)?;
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if let Some(source) = self.source.as_ref() {
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write!(f, "\nCaused by: {}", source)?;
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}
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Ok(ret)
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}
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}
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impl Into<String> for MeliError {
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fn into(self) -> String {
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self.details.into()
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}
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}
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impl Error for MeliError {
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fn source(&self) -> Option<&(dyn Error + 'static)> {
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self.source.as_ref().map(|s| &(*(*s)) as _)
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}
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}
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impl From<io::Error> for MeliError {
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#[inline]
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fn from(kind: io::Error) -> MeliError {
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MeliError::new(kind.to_string()).set_source(Some(Arc::new(kind)))
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}
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}
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impl From<nom::IError> for MeliError {
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#[inline]
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fn from(kind: nom::IError) -> MeliError {
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MeliError::new(format!("{:?}", kind))
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}
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}
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impl<'a> From<Cow<'a, str>> for MeliError {
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#[inline]
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fn from(kind: Cow<'_, str>) -> MeliError {
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MeliError::new(format!("{:?}", kind))
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}
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}
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impl From<string::FromUtf8Error> for MeliError {
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#[inline]
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fn from(kind: string::FromUtf8Error) -> MeliError {
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MeliError::new(format!("{:?}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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impl From<str::Utf8Error> for MeliError {
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#[inline]
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fn from(kind: str::Utf8Error) -> MeliError {
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MeliError::new(format!("{:?}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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//use std::option;
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//impl From<option::NoneError> for MeliError {
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// #[inline]
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// fn from(kind: option::NoneError) -> MeliError {
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// MeliError::new(format!("{:?}", kind))
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// }
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//}
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impl<T> From<std::sync::PoisonError<T>> for MeliError {
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#[inline]
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fn from(kind: std::sync::PoisonError<T>) -> MeliError {
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MeliError::new(format!("{}", kind))
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}
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}
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#[cfg(feature = "imap_backend")]
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impl From<native_tls::HandshakeError<std::net::TcpStream>> for MeliError {
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#[inline]
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fn from(kind: native_tls::HandshakeError<std::net::TcpStream>) -> MeliError {
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MeliError::new(format!("{}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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#[cfg(feature = "imap_backend")]
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impl From<native_tls::Error> for MeliError {
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#[inline]
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fn from(kind: native_tls::Error) -> MeliError {
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MeliError::new(format!("{}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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impl From<std::num::ParseIntError> for MeliError {
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#[inline]
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fn from(kind: std::num::ParseIntError) -> MeliError {
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MeliError::new(format!("{}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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#[cfg(feature = "jmap_backend")]
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impl From<reqwest::Error> for MeliError {
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#[inline]
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fn from(kind: reqwest::Error) -> MeliError {
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MeliError::new(format!("{}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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#[cfg(feature = "jmap_backend")]
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impl From<serde_json::error::Error> for MeliError {
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#[inline]
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fn from(kind: serde_json::error::Error) -> MeliError {
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MeliError::new(format!("{}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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impl From<Box<dyn Error + Sync + Send + 'static>> for MeliError {
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#[inline]
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fn from(kind: Box<dyn Error + Sync + Send + 'static>) -> MeliError {
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MeliError::new(format!("{}", kind)).set_source(Some(kind.into()))
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}
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}
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impl From<std::ffi::NulError> for MeliError {
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#[inline]
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fn from(kind: std::ffi::NulError) -> MeliError {
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MeliError::new(format!("{}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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impl From<nix::Error> for MeliError {
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#[inline]
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fn from(kind: nix::Error) -> MeliError {
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MeliError::new(format!("{}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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impl From<libloading::Error> for MeliError {
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#[inline]
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fn from(kind: libloading::Error) -> MeliError {
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MeliError::new(format!("{}", kind)).set_source(Some(Arc::new(kind)))
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}
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}
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impl From<&str> for MeliError {
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#[inline]
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fn from(kind: &str) -> MeliError {
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MeliError::new(kind.to_string())
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}
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}
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impl From<String> for MeliError {
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#[inline]
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fn from(kind: String) -> MeliError {
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MeliError::new(kind)
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}
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}
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