Enum Grouping 

pub enum Grouping {
    Ungrouped,
    Invisible,
    Parens,
}

Whether an expansion should be surrounded by a None-delimited Group

Ord is valid for composition with cmp::max

Variants

Ungrouped

Invisible

Parens

Implementations

impl Grouping

pub fn surround(&self, none_span: Span, ts: impl ToTokens) -> TokenStream

Surround ts as specified by this Grouping

none_span is the span to use for None-delimiters. It should generally be the principal span of the contained thing, whatever that is. For a type, that’s the primary ident.

Trait Implementations

impl Clone for Grouping

fn clone(&self) -> Grouping

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Grouping

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

Formats the value using the given formatter.

impl Ord for Grouping

fn cmp(&self, other: &Grouping) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Grouping

fn eq(&self, other: &Grouping) -> 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 PartialOrd for Grouping

fn partial_cmp(&self, other: &Grouping) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Grouping

impl Eq for Grouping

impl StructuralPartialEq for Grouping