Enum boa::syntax::ast::node::declaration::DeclarationPattern

pub enum DeclarationPattern {
    Object(DeclarationPatternObject),
    Array(DeclarationPatternArray),
}

DeclarationPattern represents an object or array binding pattern.

This enum mostly wraps the functionality of the specific binding pattern types.

More information:

• ECMAScript reference: 14.3.3 Destructuring Binding Patterns - BindingPattern

Variants

Object(DeclarationPatternObject)

Tuple Fields of Object

0: DeclarationPatternObject

Array(DeclarationPatternArray)

Tuple Fields of Array

0: DeclarationPatternArray

Implementations

impl DeclarationPattern

pub fn idents(&self) -> Vec<&str>

Gets the list of identifiers declared by the binding pattern.

A single binding pattern may declare 0 to n identifiers.

pub fn init(&self) -> Option<&Node>

Gets the initialization node for the binding pattern, if any.

Trait Implementations

impl Clone for DeclarationPattern

fn clone(&self) -> DeclarationPattern

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DeclarationPattern

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

Formats the value using the given formatter.

impl Display for DeclarationPattern

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

Formats the value using the given formatter.

impl Drop for DeclarationPattern

fn drop(&mut self)

Executes the destructor for this type.

impl Finalize for DeclarationPattern

fn finalize(&self)

impl PartialEq<DeclarationPattern> for DeclarationPattern

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Trace for DeclarationPattern

unsafe fn trace(&self)

Marks all contained Gcs.

unsafe fn root(&self)

Increments the root-count of all contained Gcs.

unsafe fn unroot(&self)

Decrements the root-count of all contained Gcs.

fn finalize_glue(&self)

Runs Finalize::finalize() on this object and all contained subobjects

impl StructuralPartialEq for DeclarationPattern