Struct Capability 

pub struct Capability {
    pub name: &'static str,
    pub value: CapValue,
    pub offered: Option<&'static str>,
    pub honoured: Honoured,
    pub requires: Option<WantPolicy>,
}

One capability gunnar advertises, and the thing that honours it.

Fields

name: &'static str

The name as it appears on the wire, without any =value.

value: CapValue

What follows the name.

offered: Option<&'static str>

The Offered knob that can withdraw this capability, if any.

None means it is always advertised. Some(feature) means it appears only when Offered::has says so — and the parser must refuse the argument in the same breath, which is what Offered exists to make impossible to get wrong.

honoured: Honoured

Where it is honoured.

requires: Option<WantPolicy>

The [WantPolicy] this row is a promise about, if any.

None for every capability whose truth does not depend on what a client is allowed to want — which is all of them but the two allow-*-sha1-in-want rows.

This exists because the drift Honoured catches runs one way only. A row honoured by nothing is caught by the guard; a policy honoured by no row is not, because there is no row to look at. WantPolicy was exactly that: enforced by check_wants on every request and named in no advertisement, so a stock client refused the request on its own side and the server never heard it. See [WantPolicy::advertises].

Trait Implementations

impl Clone for Capability

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Capability

impl Debug for Capability

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

Formats the value using the given formatter.

impl Eq for Capability

impl PartialEq for Capability

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Capability