Enum version_number::parsers::error::ExpectedError

pub enum ExpectedError {
    Separator {
        at: Option<usize>,
        got: Option<char>,
    },
    EndOfInput {
        at: Option<usize>,
        got: char,
    },
    Numeric {
        at: Option<usize>,
        got: Option<char>,
    },
}

An error type for faults relating to parsing and expecting a certain type of token.

Variants

Separator

Fields

at: Option<usize>

Place where the token was expected.

May be None if the respective parser does not store the index.

got: Option<char>

Token found instead, or None if we unexpectedly got the end-of-input.

When this error variant is returned, the . token, i.e. the separator, was expected, but a different token was present. The got field shows the token read.

EndOfInput

Fields

at: Option<usize>

Place where the end-of-input was expected.

May be None if the respective parser does not store the index.

got: char

Character found at the expected end-of-input.

When this error variant is returned, the parser expected that no more tokens should be present, but instead 1 or more additional tokens were not parsed yet.

The got field contains the next token received, where it expected none to be remaining.

Numeric

Fields

at: Option<usize>

Place where the token was expected.

May be None if the respective parser does not store the index.

got: Option<char>

Token found instead, or None if we unexpectedly got the end-of-input.

When this error variant is returned, a numeric token was expected, but a different token was present.

The got field shows the token read.

Trait Implementations

impl Clone for ExpectedError

fn clone(&self) -> ExpectedError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExpectedError

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

Formats the value using the given formatter.

impl Display for ExpectedError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for ExpectedError

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

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

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

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

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, demand: &mut Demand<'a>)

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

Provides type based access to context intended for error reports.

impl From<ExpectedError> for ParserError

fn from(source: ExpectedError) -> Self

Converts to this type from the input type.

impl PartialEq<ExpectedError> for ExpectedError

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ExpectedError

impl StructuralEq for ExpectedError

impl StructuralPartialEq for ExpectedError