Enum PropOrSpread 

pub enum PropOrSpread {
    Spread(SpreadElement),
    Prop(Box<Prop>),
}

Available on crate features __ecma and ecma_ast only.

Variants

Spread(SpreadElement)

Spread properties, e.g., {a: 1, ...obj, b: 2}.

Prop(Box<Prop>)

Implementations

impl PropOrSpread

pub const fn is_spread(&self) -> bool

Returns true if self is of variant Spread.

pub fn as_spread(&self) -> Option<&SpreadElement>

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

pub fn as_mut_spread(&mut self) -> Option<&mut SpreadElement>

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

pub fn expect_spread(self) -> SpreadElement

where PropOrSpread: Debug,

Unwraps the value, yielding the content of Spread.

Panics

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

pub fn spread(self) -> Option<SpreadElement>

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

pub const fn is_prop(&self) -> bool

Returns true if self is of variant Prop.

pub fn as_prop(&self) -> Option<&Box<Prop>>

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

pub fn as_mut_prop(&mut self) -> Option<&mut Box<Prop>>

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

pub fn expect_prop(self) -> Box<Prop>

where PropOrSpread: Debug,

Unwraps the value, yielding the content of Prop.

Panics

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

pub fn prop(self) -> Option<Box<Prop>>

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

Trait Implementations

impl Clone for PropOrSpread

fn clone(&self) -> PropOrSpread

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PropOrSpread

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

Formats the value using the given formatter.

impl EqIgnoreSpan for PropOrSpread

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

impl<V> FoldWith<V> for PropOrSpread

where V: Fold + ?Sized,

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

Calls Fold::fold_prop_or_spread with self.

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

Visit children nodes of self`` with visitor`.

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

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

Converts to this type from the input type.

impl From<Box<Prop>> for PropOrSpread

fn from(v: Box<Prop>) -> PropOrSpread

Converts to this type from the input type.

impl From<Prop> for PropOrSpread

fn from(src: Prop) -> PropOrSpread

Converts to this type from the input type.

impl From<SpreadElement> for PropOrSpread

fn from(v: SpreadElement) -> PropOrSpread

Converts to this type from the input type.

impl Hash for PropOrSpread

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 Node for PropOrSpread

fn emit_with<W, S>(&self, emitter: &mut Emitter<'_, W, S>) -> Result<(), Error>

where W: WriteJs, S: SourceMapper + SourceMapperExt,

impl PartialEq for PropOrSpread

fn eq(&self, other: &PropOrSpread) -> 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 PropOrSpread

fn span(&self) -> Span

Get span of self.

fn span_lo(&self) -> BytePos

fn span_hi(&self) -> BytePos

impl Take for PropOrSpread

fn dummy() -> PropOrSpread

Create a dummy value of this type.

fn take(&mut self) -> Self

fn map_with_mut<F>(&mut self, op: F)

where F: FnOnce(Self) -> Self,

Mutate self using op, which accepts owned data.

impl<V> VisitMutWith<V> for PropOrSpread

where V: VisitMut + ?Sized,

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

Calls VisitMut::visit_mut_prop_or_spread with self.

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

Visit children nodes of self`` with visitor`.

impl<V> VisitWith<V> for PropOrSpread

where V: Visit + ?Sized,

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

Calls Visit::visit_prop_or_spread with self.

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

Visit children nodes of self`` with visitor`.

impl Eq for PropOrSpread

impl StructuralPartialEq for PropOrSpread

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: 16 bytes

Size for each variant:

• Spread: 16 bytes
• Prop: 16 bytes