81 lines
1.5 KiB
Rust
81 lines
1.5 KiB
Rust
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::{Display, Formatter};
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/**
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* Kind of error
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*/
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#[derive(Clone, Copy, Debug, PartialEq)]
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pub enum ViewErrorKind {
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}
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fn counter_error_type_as_str(e: &ViewErrorKind) -> &'static str {
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match e {
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_ => "",
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}
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}
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impl Display for ViewErrorKind {
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fn fmt(&self, fmt: &mut Formatter) -> Result<(), FmtError> {
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try!(write!(fmt, "{}", counter_error_type_as_str(self)));
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Ok(())
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}
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}
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/**
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* Store error type
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*/
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#[derive(Debug)]
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pub struct ViewError {
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err_type: ViewErrorKind,
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cause: Option<Box<Error>>,
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}
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impl ViewError {
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/**
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* Build a new ViewError from an ViewErrorKind, optionally with cause
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*/
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pub fn new(errtype: ViewErrorKind, cause: Option<Box<Error>>)
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-> ViewError
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{
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ViewError {
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err_type: errtype,
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cause: cause,
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}
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}
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/**
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* Get the error type of this ViewError
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*/
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pub fn err_type(&self) -> ViewErrorKind {
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self.err_type.clone()
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}
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}
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impl Display for ViewError {
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fn fmt(&self, fmt: &mut Formatter) -> Result<(), FmtError> {
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try!(write!(fmt, "[{}]", counter_error_type_as_str(&self.err_type.clone())));
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Ok(())
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}
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}
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impl Error for ViewError {
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fn description(&self) -> &str {
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counter_error_type_as_str(&self.err_type.clone())
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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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