Enum PolyVariant 

pub enum PolyVariant {
    Token(TokenRef),
    Node(NodeRef),
}

An owned wrapper of NodeRef and TokenRef.

This is a helper object that wraps both kinds of syntax and lexical component references into a single one.

Variants

Token(TokenRef)

This polymorphic variant represents a TokenRef reference.

Node(NodeRef)

This polymorphic variant represents a NodeRef reference.

Trait Implementations

impl AsRef<dyn PolyRef> for PolyVariant

fn as_ref(&self) -> &dyn PolyRef

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<dyn PolyRef> for PolyVariant

fn borrow(&self) -> &dyn PolyRef

Immutably borrows from an owned value.

impl Clone for PolyVariant

fn clone(&self) -> PolyVariant

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PolyVariant

impl Debug for PolyVariant

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

Formats the value using the given formatter.

impl Eq for PolyVariant

impl Hash for PolyVariant

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 Identifiable for PolyVariant

fn id(&self) -> Id

Returns the globally unique identifier of the compilation unit to which this object belongs.

impl Ord for PolyVariant

fn cmp(&self, other: &PolyVariant) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for PolyVariant

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for PolyVariant

fn partial_cmp(&self, other: &PolyVariant) -> 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 PolyRef for PolyVariant

fn kind(&self) -> RefKind

Returns a discriminant of the underlying reference kind.

fn is_nil(&self) -> bool

Returns true, if the underlying reference intentionally does not refer to any node or token within any compilation unit.

fn as_variant(&self) -> PolyVariant

Returns an owned wrapper of the NodeRef and TokenRef.

fn as_token_ref(&self) -> &TokenRef

Returns a TokenRef if this PolyRef represents a TokenRef; otherwise returns a TokenRef::nil.

fn as_node_ref(&self) -> &NodeRef

Returns a NodeRef if this PolyRef represents a NodeRef; otherwise returns a NodeRef::nil.

fn span(&self, unit: &impl CompilationUnit) -> Option<SiteSpan>

Computes a site span of the underlying object.

fn display<'unit>( &self, unit: &'unit impl CompilationUnit, ) -> impl Debug + Display + 'unit

where Self: Sized,

Returns a displayable object that prints the underlying object metadata for debugging purposes.

impl StructuralPartialEq for PolyVariant