Enum OnUnboundMacroParameter 

pub(crate) enum OnUnboundMacroParameter {
    ElideReference,
    SubstituteZero,
}

Indicates the action to be taken when a macro invocation does not specify a value for one of its dummy parameters.

Variants

ElideReference

SubstituteZero

Trait Implementations

impl Clone for OnUnboundMacroParameter

fn clone(&self) -> OnUnboundMacroParameter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OnUnboundMacroParameter

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

Formats the value using the given formatter.

impl Hash for OnUnboundMacroParameter

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for OnUnboundMacroParameter

fn eq(&self, other: &OnUnboundMacroParameter) -> 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 Copy for OnUnboundMacroParameter

impl Eq for OnUnboundMacroParameter

impl StructuralPartialEq for OnUnboundMacroParameter