Struct OptionalOperation 

pub struct OptionalOperation { /* private fields */ }

Operation within an Optional chain.

An operation within an Optional chain can be either shorted or non-shorted. A shorted operation (?.item) will force the expression to return undefined if the target is undefined or null. In contrast, a non-shorted operation (.prop) will try to access the property, even if the target is undefined or null.

Implementations

impl OptionalOperation

pub const fn new( kind: OptionalOperationKind, shorted: bool, span: Span, ) -> OptionalOperation

Creates a new OptionalOperation.

pub const fn kind(&self) -> &OptionalOperationKind

Gets the kind of operation.

pub const fn shorted(&self) -> bool

Returns true if the operation short-circuits the Optional chain when the target is undefined or null.

Trait Implementations

impl Clone for OptionalOperation

fn clone(&self) -> OptionalOperation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionalOperation

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for OptionalOperation

fn deserialize<__D>( __deserializer: __D, ) -> Result<OptionalOperation, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a> From<&'a OptionalOperation> for NodeRef<'a>

fn from(node: &'a OptionalOperation) -> NodeRef<'a>

Converts to this type from the input type.

impl<'a> From<&'a mut OptionalOperation> for NodeRefMut<'a>

fn from(node: &'a mut OptionalOperation) -> NodeRefMut<'a>

Converts to this type from the input type.

impl PartialEq for OptionalOperation

fn eq(&self, other: &OptionalOperation) -> 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 Serialize for OptionalOperation

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Spanned for OptionalOperation

fn span(&self) -> Span

Returns a span from the current type.

impl ToInternedString for OptionalOperation

fn to_interned_string(&self, interner: &Interner) -> String

Converts a given element to a string using an interner.

impl VisitWith for OptionalOperation

fn visit_with<'a, V>( &'a self, visitor: &mut V, ) -> ControlFlow<<V as Visitor<'a>>::BreakTy>

where V: Visitor<'a>,

Visit this node with the provided visitor.

fn visit_with_mut<'a, V>( &'a mut self, visitor: &mut V, ) -> ControlFlow<<V as VisitorMut<'a>>::BreakTy>

where V: VisitorMut<'a>,

Visit this node with the provided visitor mutably, allowing the visitor to modify private fields.

impl StructuralPartialEq for OptionalOperation