Struct dotenv::Error

pub struct Error(pub ErrorKind, pub State);

The Error type.

This struct is made of three things:

• ErrorKind which is used to determine the type of the error.
• a backtrace, generated when the error is created.
• an error chain, used for the implementation of Error::cause().

Methods

impl Error

pub fn from_kind(kind: ErrorKind) -> Self

Constructs an error from a kind, and generates a backtrace.

pub fn with_chain<__E, __K>(error: __E, kind: __K) -> Self where
    __E: Error + Send + 'static,
    __K: Into<ErrorKind>, 

Constructs a chained error from another error and a kind, and generates a backtrace.

pub fn with_boxed_chain<__K>(error: Box<Error + Send>, kind: __K) -> Error where
    __K: Into<ErrorKind>, 

Constructs a chained error from another boxed error and a kind, and generates a backtrace

pub fn kind(&self) -> &ErrorKind

Returns the kind of the error.

pub fn iter(&self) -> Iter

Iterates over the error chain.

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

Returns the backtrace associated with this error.

pub fn chain_err<__F, __EK>(self, error: __F) -> Self where
    __F: FnOnce() -> __EK,
    __EK: Into<ErrorKind>, 

Extends the error chain with a new entry.

impl Error

pub fn not_found(&self) -> bool

Methods from Deref<Target = ErrorKind>

pub fn description(&self) -> &str

A string describing the error kind.

Trait Implementations

impl From<Error> for ErrorKind

fn from(err: Error) -> Self

Performs the conversion.

impl Debug for Error

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Error for Error

fn description(&self) -> &str

A short description of the error.

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

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

impl Display for Error

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

Formats the value using the given formatter.

impl<'__a> From<&'__a str> for Error

fn from(s: &'__a str) -> Self

Performs the conversion.

impl From<String> for Error

fn from(s: String) -> Self

Performs the conversion.

impl From<Error> for Error

fn from(err: Error) -> Self

Performs the conversion.

impl From<VarError> for Error

fn from(err: VarError) -> Self

Performs the conversion.

impl From<ErrorKind> for Error

fn from(kind: ErrorKind) -> Self

Performs the conversion.

impl Deref for Error

type Target = ErrorKind

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl ChainedError for Error

type ErrorKind = ErrorKind

Associated kind type.

fn new(kind: Self::ErrorKind, state: State) -> Self

fn from_kind(kind: Self::ErrorKind) -> Self

Constructs an error from a kind, and generates a backtrace.

fn with_chain<__E, __K>(error: __E, kind: __K) -> Self where
    __E: Error + Send + 'static,
    __K: Into<Self::ErrorKind>, 

Constructs a chained error from another error and a kind, and generates a backtrace.

fn kind(&self) -> &Self::ErrorKind

Returns the kind of the error.

fn iter(&self) -> Iter

Iterates over the error chain.

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

Returns the backtrace associated with this error.

fn chain_err<__F, __EK>(self, error: __F) -> Self where
    __F: FnOnce() -> __EK,
    __EK: Into<Self::ErrorKind>, 

Extends the error chain with a new entry.

fn extract_backtrace(err: &(Error + Send + 'static)) -> Option<Arc<Backtrace>>

fn display_chain(&'a self) -> DisplayChain<'a, Self>

Returns an object which implements Display for printing the full context of this error.