Enum Answer 

pub enum Answer {
    Present(Arc<Value>),
    Absent,
    Unknown(Unknown),
}

What this reader knows about one reference.

Variants

Present(Arc<Value>)

The repository holds records there — see Fetched::Present for the shape, which is an array either way. An Arc because one cached value is handed to every evaluator that asks for it.

Absent

The repository answered, and holds nothing there.

Unknown(Unknown)

Neither was established; see Unknown, and this crate’s “What an unknown means”.

Implementations

impl Answer

pub fn as_str(&self) -> &'static str

A short word for a log line.

Trait Implementations

impl Clone for Answer

fn clone(&self) -> Answer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Answer

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

Formats the value using the given formatter.

impl PartialEq for Answer

fn eq(&self, other: &Answer) -> 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 Answer

impl StructuralPartialEq for Answer