Enum bloguen::Error

pub enum Error {
    Io {
        desc: Cow<'static, str>,
        op: &'static str,
        more: Cow<'static, str>,
    },
    Parse {
        tp: &'static str,
        wher: Cow<'static, str>,
        more: Cow<'static, str>,
    },
    FileNotFound {
        who: &'static str,
        path: Cow<'static, str>,
    },
    WrongFileState {
        what: &'static str,
        path: Cow<'static, str>,
    },
    FileParsingFailed {
        desc: Cow<'static, str>,
        errors: Cow<'static, str>,
    },
}

Enum representing all possible ways the application can fail.

Examples

assert_eq!(Error::Io {
               desc: "network".into(),
               op: "write",
               more: "full buffer".into(),
           }.to_string(),
           "Writing network failed: full buffer.");

Variants

Io

An I/O error occured.

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

Fields of Io

desc: Cow<'static, str>

The file the I/O operation regards.

op: &'static str

The failed operation.

This should be lowercase and imperative ("create", "open").

more: Cow<'static, str>

Additional data.

Parse

Fields of Parse

tp: &'static str

What failed to parse.

Something like "URL", "datetime".

wher: Cow<'static, str>

Where the thing that failed to parse would go, were it to parse properly.

more: Cow<'static, str>

Additional data.

FileNotFound

A requested file doesn't exist.

Fields of FileNotFound

who: &'static str

What requested the file.

path: Cow<'static, str>

The file that should exist.

WrongFileState

A path is in a wrong state.

Fields of WrongFileState

what: &'static str

What the file is not.

path: Cow<'static, str>

The file that should be.

FileParsingFailed

Failed to parse the specified file because of the specified error(s).

Fields of FileParsingFailed

desc: Cow<'static, str>

The file that failed to parse.

errors: Cow<'static, str>

The parsing error(s) that occured.

Methods

impl Error

pub fn exit_value(&self) -> i32

Get the executable exit value from an Error instance.

Examples

assert_eq!(Error::Io {
    desc: "".into(),
    op: "",
    more: "".into(),
}.exit_value(), 1);

Trait Implementations

impl Eq for Error

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 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 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.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn description(&self) -> &str

This method is soft-deprecated.

fn cause(&self) -> Option<&dyn Error>

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

The lower-level cause of this error, if any.

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error ocurred.