Enum ObjectPatternElement 

pub enum ObjectPatternElement {
    SingleName {
        name: PropertyName,
        ident: Identifier,
        default_init: Option<Expression>,
    },
    RestProperty {
        ident: Identifier,
    },
    AssignmentPropertyAccess {
        name: PropertyName,
        access: PropertyAccess,
        default_init: Option<Expression>,
    },
    AssignmentRestPropertyAccess {
        access: PropertyAccess,
    },
    Pattern {
        name: PropertyName,
        pattern: Pattern,
        default_init: Option<Expression>,
    },
}

The different types of bindings that an ObjectPattern may contain.

Corresponds to the BindingProperty and the AssignmentProperty nodes.

Variants

SingleName

SingleName represents one of the following properties:

• SingleName with an identifier and an optional default initializer.
• BindingProperty with an property name and a SingleNameBinding as the BindingElement.

More information:

• ECMAScript reference: 14.3.3 Destructuring Binding Patterns - SingleNameBinding
• ECMAScript reference: 14.3.3 Destructuring Binding Patterns - BindingProperty

Fields

name: PropertyName

The identifier name of the property to be destructured.

ident: Identifier

The variable name where the property value will be stored.

default_init: Option<Expression>

An optional default value for the variable, in case the property doesn’t exist.

RestProperty

RestProperty represents a BindingRestProperty with an identifier.

It also includes a list of the property keys that should be excluded from the rest, because they where already assigned.

More information:

• ECMAScript reference: 14.3.3 Destructuring Binding Patterns - BindingRestProperty

Fields

ident: Identifier

The variable name where the unassigned properties will be stored.

AssignmentPropertyAccess

AssignmentGetField represents an AssignmentProperty with an expression field member expression AssignmentElement.

Note: According to the spec this is not part of an ObjectBindingPattern. This is only used when a object literal is used to cover an AssignmentPattern.

More information:

• ECMAScript reference

Fields

name: PropertyName

The identifier name of the property to be destructured.

access: PropertyAccess

The property access where the property value will be destructured.

default_init: Option<Expression>

An optional default value for the variable, in case the property doesn’t exist.

AssignmentRestPropertyAccess

AssignmentRestProperty represents a rest property with a DestructuringAssignmentTarget.

Note: According to the spec this is not part of an ObjectBindingPattern. This is only used when a object literal is used to cover an AssignmentPattern.

More information:

• ECMAScript reference

Fields

access: PropertyAccess

The property access where the unassigned properties will be stored.

Pattern

Pattern represents a property with a Pattern as the element.

Additionally to the identifier of the new property and the nested pattern, this may also include an optional default initializer.

More information:

• ECMAScript reference: 14.3.3 Destructuring Binding Patterns - BindingProperty

Fields

name: PropertyName

The identifier name of the property to be destructured.

pattern: Pattern

The pattern where the property value will be destructured.

default_init: Option<Expression>

An optional default value for the variable, in case the property doesn’t exist.

Trait Implementations

impl Clone for ObjectPatternElement

fn clone(&self) -> ObjectPatternElement

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ObjectPatternElement

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ObjectPatternElement

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

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

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

Converts to this type from the input type.

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

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

Converts to this type from the input type.

impl PartialEq for ObjectPatternElement

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

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 ToInternedString for ObjectPatternElement

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

Converts a given element to a string using an interner.

impl VisitWith for ObjectPatternElement

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 ObjectPatternElement