Enum boa::syntax::ast::node::MethodDefinitionKind

pub enum MethodDefinitionKind {
    Get,
    Set,
    Ordinary,
}

Method definition kinds.

Starting with ECMAScript 2015, a shorter syntax for method definitions on objects initializers is introduced. It is a shorthand for a function assigned to the method’s name.

More information:

• ECMAScript reference
• MDN documentation

Variants

Get

The get syntax binds an object property to a function that will be called when that property is looked up.

Sometimes it is desirable to allow access to a property that returns a dynamically computed value, or you may want to reflect the status of an internal variable without requiring the use of explicit method calls. In JavaScript, this can be accomplished with the use of a getter.

It is not possible to simultaneously have a getter bound to a property and have that property actually hold a value, although it is possible to use a getter and a setter in conjunction to create a type of pseudo-property.

More information:

• ECMAScript reference
• MDN documentation

Set

The set syntax binds an object property to a function to be called when there is an attempt to set that property.

In JavaScript, a setter can be used to execute a function whenever a specified property is attempted to be changed. Setters are most often used in conjunction with getters to create a type of pseudo-property. It is not possible to simultaneously have a setter on a property that holds an actual value.

More information:

• ECMAScript reference
• MDN documentation

Ordinary

Starting with ECMAScript 2015, you are able to define own methods in a shorter syntax, similar to the getters and setters.

More information:

• ECMAScript reference
• MDN documentation

Trait Implementations

impl Clone for MethodDefinitionKind

fn clone(&self) -> MethodDefinitionKind

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MethodDefinitionKind

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

Formats the value using the given formatter.

impl Finalize for MethodDefinitionKind

fn finalize(&self)

impl PartialEq<MethodDefinitionKind> for MethodDefinitionKind

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Trace for MethodDefinitionKind

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 Copy for MethodDefinitionKind

impl StructuralPartialEq for MethodDefinitionKind