Enum ParseA2aVersionError 

pub enum ParseA2aVersionError {
    MissingMinor {
        input: String,
    },
    InvalidMajor {
        input: String,
        error: ParseIntError,
    },
    InvalidMinor {
        input: String,
        error: ParseIntError,
    },
}

Why an A2A version string failed to parse.

The variants are named for the part that was wrong, not the string, because a peer that says "foo" is making a different mistake than one that says "1" or "1.x".

Variants

MissingMinor

The string had no . separator. The A2A wire form is always Major.Minor; 1 alone is not a valid A2A-Version header.

Fields

input: String

The verbatim string the peer sent, included so the error carries the full input rather than the part that failed.

InvalidMajor

The Major part did not parse as a u16. Carries the parse error so the caller can decide whether to fall back to a default or surface it to the peer.

Fields

input: String

The verbatim string the peer sent.

error: ParseIntError

The parse error the u16 parser returned. Surfaced rather than absorbed because the consumer (the dispatcher, an HTTP error handler) decides whether 1.x is a peer mistake to report or an accept-and-default case.

InvalidMinor

The Minor part did not parse as a u16. Same shape as InvalidMajor; a separate variant so the error message names the offending part.

Fields

input: String

The verbatim string the peer sent.

error: ParseIntError

The parse error the u16 parser returned.

Trait Implementations

impl Clone for ParseA2aVersionError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseA2aVersionError

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

Formats the value using the given formatter.

impl Display for ParseA2aVersionError

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

Formats the value using the given formatter.

impl Eq for ParseA2aVersionError

impl Error for ParseA2aVersionError

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 PartialEq for ParseA2aVersionError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParseA2aVersionError