63 lines
1.2 KiB
Rust
63 lines
1.2 KiB
Rust
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use std::error::Error;
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use std::fmt::Error as FmtError;
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use std::clone::Clone;
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use std::fmt::{Debug, Display, Formatter};
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use std::fmt;
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#[derive(Clone, Copy, Debug, PartialEq)]
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pub enum LinkErrorKind {
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}
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fn link_error_type_as_str(e: &LinkErrorKind) -> &'static str {
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match e {
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_ => unimplemented!(),
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}
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}
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impl Display for LinkErrorKind {
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fn fmt(&self, fmt: &mut Formatter) -> Result<(), FmtError> {
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try!(write!(fmt, "{}", link_error_type_as_str(self)));
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Ok(())
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}
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}
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#[derive(Debug)]
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pub struct LinkError {
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kind: LinkErrorKind,
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cause: Option<Box<Error>>,
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}
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impl LinkError {
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pub fn new(errtype: LinkErrorKind, cause: Option<Box<Error>>) -> LinkError {
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LinkError {
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kind: errtype,
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cause: cause,
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}
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}
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}
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impl Display for LinkError {
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fn fmt(&self, fmt: &mut Formatter) -> Result<(), FmtError> {
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try!(write!(fmt, "[{}]", link_error_type_as_str(&self.kind)));
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Ok(())
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}
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}
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impl Error for LinkError {
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fn description(&self) -> &str {
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link_error_type_as_str(&self.kind)
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}
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fn cause(&self) -> Option<&Error> {
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self.cause.as_ref().map(|e| &**e)
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}
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}
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