Struct OptionalType 

pub struct OptionalType { /* private fields */ }

A OptionalType node (family.ungram rule OptionalType).

Implementations

impl OptionalType

pub fn field_type(&self) -> Option<FieldType>

pub fn question_token(&self) -> Option<SyntaxToken>

Trait Implementations

impl AstNode for OptionalType

fn cast(syntax: SyntaxNode) -> Option<Self>

Wraps syntax if its kind matches this type; None otherwise.

fn syntax(&self) -> &SyntaxNode

The underlying untyped node.

impl Clone for OptionalType

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionalType

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

Formats the value using the given formatter.

impl Eq for OptionalType

impl Hash for OptionalType

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 OptionalType

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for OptionalType