Enum dumplingh::Error

pub enum Error {
    Io {
        desc: &'static str,
        op: &'static str,
        more: Option<&'static str>,
    },
    Parse {
        tp: &'static str,
        wher: &'static str,
        more: Option<&'static str>,
    },
}

Enum representing all possible ways the application can fail.

Variants

Io

An I/O error occured.

This includes higher-level I/O errors like FS ones.

Fields of Io

desc: &'static str	The file the I/O operation regards.
op: &'static str	The failed operation. This should be lowercase and imperative ("create", "open").
more: Option<&'static str>	Additional data.

Parse

A parsing error occured.

Fields of Parse

tp: &'static str	What failed to parse. Something like "URL", "datetime".
wher: &'static str	Where the thing that failed to parse would go, were it to parse properly.
more: Option<&'static str>	Additional data.

Methods

impl Error

pub fn print_error<W: Write>(&self, err_out: &mut W)

Write the error message to the specified output stream.

Examples

let mut out = Vec::new();
Error::Io {
    desc: "network",
    op: "write",
    more: Some("full buffer"),
}.print_error(&mut out);
assert_eq!(&out[..],
           &b"Writing network failed: full buffer.\n"[..]);

pub fn exit_value(&self) -> i32

Get the executable exit value from an Error instance.

Examples

assert_eq!(Error::Io {
    desc: "",
    op: "",
    more: None,
}.exit_value(), 1);

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Error

impl Eq for Error

impl PartialOrd<Error> for Error

fn partial_cmp(&self, other: &Error) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Error) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Error) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Error) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Error) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PartialEq<Error> for Error

fn eq(&self, other: &Error) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Error) -> bool

This method tests for !=.

impl Ord for Error

fn cmp(&self, other: &Error) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl Hash for Error

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl Debug for Error

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.