Trait nvim_rs::rpc::unpack::TryUnpack [−][src]
pub trait TryUnpack<V> {
fn try_unpack(self) -> Result<V, Value>;
}
Expand description
Trait to allow seamless conversion from a Value
to the type
it contains. In particular, this should never panic.
This is basically a specialized variant of TryInto<V> for Value
.
Required methods
fn try_unpack(self) -> Result<V, Value>
fn try_unpack(self) -> Result<V, Value>
Returns the value contained in self
.
Errors
Returns Err(self)
if self
does not contain a value of type V
.
Implementors
This is needed because the blanket impl TryFrom<Value> for Value
uses
Error = !
.
The bound Value: From<T>
is necessary so we can recover the values if one
of the elements could not be unpacked. In practice, though, we only
implement TryUnpack<T>
in those cases anyways.