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use std::error::Error; use std::{fmt, io, path}; pub type Result<T> = std::result::Result<T, GuidonError>; #[derive(Debug)] pub struct GuidonError { pub kind: ErrorKind, pub message: String, } #[derive(Debug)] pub enum ErrorKind { NotFound, Io, StripPrefix, NotAFolder, } impl GuidonError { pub fn new(kind: ErrorKind, message: &str) -> Self { GuidonError { kind, message: message.to_string(), } } } impl fmt::Display for GuidonError { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "{}", self.message) } } impl Error for GuidonError { fn description(&self) -> &str { &self.message } } impl From<io::Error> for GuidonError { fn from(error: io::Error) -> Self { GuidonError { kind: ErrorKind::Io, message: error.to_string(), } } } impl From<path::StripPrefixError> for GuidonError { fn from(error: path::StripPrefixError) -> Self { GuidonError { kind: ErrorKind::StripPrefix, message: error.to_string(), } } } impl From<toml::de::Error> for GuidonError { fn from(error: toml::de::Error) -> Self { GuidonError { kind: ErrorKind::StripPrefix, message: error.to_string(), } } } impl From<handlebars::TemplateRenderError> for GuidonError { fn from(error: handlebars::TemplateRenderError) -> Self { GuidonError { kind: ErrorKind::StripPrefix, message: error.to_string(), } } }