Enum OptChainBase 

pub enum OptChainBase {
    Member(MemberExpr),
    Call(OptCall),
}

Available on crate features __ecma and ecma_ast only.

Variants

Member(MemberExpr)

Call(OptCall)

Implementations

impl OptChainBase

pub const fn is_member(&self) -> bool

Returns true if self is of variant Member.

pub fn as_member(&self) -> Option<&MemberExpr>

Returns Some if self is a reference of variant Member, and None otherwise.

pub fn as_mut_member(&mut self) -> Option<&mut MemberExpr>

Returns Some if self is a mutable reference of variant Member, and None otherwise.

pub fn expect_member(self) -> MemberExpr

where OptChainBase: Debug,

Unwraps the value, yielding the content of Member.

Panics

Panics if the value is not Member, with a panic message including the content of self.

pub fn member(self) -> Option<MemberExpr>

Returns Some if self is of variant Member, and None otherwise.

pub const fn is_call(&self) -> bool

Returns true if self is of variant Call.

pub fn as_call(&self) -> Option<&OptCall>

Returns Some if self is a reference of variant Call, and None otherwise.

pub fn as_mut_call(&mut self) -> Option<&mut OptCall>

Returns Some if self is a mutable reference of variant Call, and None otherwise.

pub fn expect_call(self) -> OptCall

where OptChainBase: Debug,

Unwraps the value, yielding the content of Call.

Panics

Panics if the value is not Call, with a panic message including the content of self.

pub fn call(self) -> Option<OptCall>

Returns Some if self is of variant Call, and None otherwise.

Trait Implementations

impl Clone for OptChainBase

fn clone(&self) -> OptChainBase

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptChainBase

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

Formats the value using the given formatter.

impl Default for OptChainBase

fn default() -> OptChainBase

Returns the “default value” for a type.

impl EqIgnoreSpan for OptChainBase

fn eq_ignore_span(&self, other: &OptChainBase) -> bool

impl<V> FoldWith<V> for OptChainBase

where V: Fold + ?Sized,

fn fold_with(self, visitor: &mut V) -> OptChainBase

Calls Fold::fold_opt_chain_base with self.

fn fold_children_with(self, visitor: &mut V) -> OptChainBase

Visit children nodes of self`` with visitor`.

impl<'ast> From<&'ast OptChainBase> for NodeRef<'ast>

fn from(node: &'ast OptChainBase) -> NodeRef<'ast>

Converts to this type from the input type.

impl From<MemberExpr> for OptChainBase

fn from(v: MemberExpr) -> OptChainBase

Converts to this type from the input type.

impl From<OptCall> for OptChainBase

fn from(v: OptCall) -> OptChainBase

Converts to this type from the input type.

impl From<OptChainBase> for Expr

fn from(opt: OptChainBase) -> Expr

Converts to this type from the input type.

impl Hash for OptChainBase

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

where __H: Hasher,

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 OptChainBase

fn eq(&self, other: &OptChainBase) -> 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 Spanned for OptChainBase

fn span(&self) -> Span

Get span of self.

fn span_lo(&self) -> BytePos

fn span_hi(&self) -> BytePos

impl<V> VisitMutWith<V> for OptChainBase

where V: VisitMut + ?Sized,

fn visit_mut_with(&mut self, visitor: &mut V)

Calls VisitMut::visit_mut_opt_chain_base with self.

fn visit_mut_children_with(&mut self, visitor: &mut V)

Visit children nodes of self`` with visitor`.

impl<V> VisitWith<V> for OptChainBase

where V: Visit + ?Sized,

fn visit_with(&self, visitor: &mut V)

Calls Visit::visit_opt_chain_base with self.

fn visit_children_with(&self, visitor: &mut V)

Visit children nodes of self`` with visitor`.

impl Eq for OptChainBase

impl StructuralPartialEq for OptChainBase

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 56 bytes

Size for each variant:

• Member: 48 bytes
• Call: 56 bytes