Enum ParseError 

#[non_exhaustive]
pub enum ParseError {
    StartLine(StartLineError),
    HeaderSyntax {
        line: usize,
        kind: HeaderSyntaxError,
    },
    Framing(FramingError),
    Limit {
        limit: LimitKind,
        value: usize,
    },
    Incomplete,
}

A message that could not be framed or whose structure is malformed.

Structural only: a message whose headers are bad still parses (see HeaderError). The transaction layer maps these onto a response status, which is why each variant says what went wrong rather than merely that something did.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

StartLine(StartLineError)

The request or status line is malformed. Answer 400.

HeaderSyntax

A header field line is malformed. Answer 400.

Fields

line: usize

Which line of the header section, counting the start line as line 1.

kind: HeaderSyntaxError

What was wrong with it.

Framing(FramingError)

The message body cannot be delimited. Answer 400; on a stream transport the framing is unrecoverable and the connection must be closed.

Limit

A configured limit was exceeded. Answer 413 for body limits.

Fields

limit: LimitKind

Which limit.

value: usize

The value that exceeded it.

Incomplete

Not enough bytes yet. Only ever returned internally by the stream parser; callers see it as “no message completed”.

Trait Implementations

impl Clone for ParseError

fn clone(&self) -> ParseError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl Error for ParseError

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

Returns 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, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<FramingError> for ParseError

fn from(source: FramingError) -> Self

Converts to this type from the input type.

impl From<StartLineError> for ParseError

fn from(source: StartLineError) -> Self

Converts to this type from the input type.

impl PartialEq for ParseError

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for ParseError

impl StructuralPartialEq for ParseError