Struct Set 

pub struct Set<'s> {
    set: Local<'s, *mut JSObject>,
}

Fields

set: Local<'s, *mut JSObject>

Implementations

impl<'s> Set<'s>

pub fn new(cx: &'s Context) -> Set<'s>

Creates a new empty Set.

pub fn from(cx: &Context, object: Local<'s, *mut JSObject>) -> Option<Set<'s>>

Creates a Set from an Object.

Returns None if the object is not a set.

pub unsafe fn from_unchecked(object: Local<'s, *mut JSObject>) -> Set<'s>

Creates a Set from an Object.

Safety

Object must be a set.

pub fn size(&self, cx: &Context) -> u32

Returns the size of the Set.

pub fn has(&self, cx: &Context, key: &Value<'_>) -> bool

Checks if the Set contains the given key.

pub fn add(&self, cx: &Context, key: &Value<'_>) -> bool

Adds the key to the Set.

pub fn delete(&self, cx: &Context, key: &Value<'_>) -> bool

Deletes the key from the Set.

pub fn clear(&self, cx: &Context) -> bool

Clears the contents of the Set.

pub fn keys<'cx>(&self, cx: &'cx Context) -> Object<'cx>

Returns an Iterator over the keys of the Set.

pub fn entries<'cx>(&self, cx: &'cx Context) -> Object<'cx>

Returns an Iterator over the entries of the Set. The key and value in each entry are the same.

pub fn for_each( &self, cx: &Context, callback: &Function<'_>, this: &Object<'_>, ) -> bool

Runs the given callback for each entry in the Set.

pub fn is_set(cx: &Context, object: &Local<'_, *mut JSObject>) -> bool

Checks if the object is a set.

Methods from Deref<Target = Local<'s, *mut JSObject>>

pub fn handle(&self) -> Handle<'local, T>

Forms a Handle to the Local which can be passed to SpiderMonkey APIs.

pub fn handle_mut(&mut self) -> MutableHandle<'local, T>

Forms a Handle to the Local which can be passed to SpiderMonkey APIs.

Panics

Panics when a Local::Handle is passed.

pub fn get(&self) -> T

Trait Implementations

impl<'s> Deref for Set<'s>

type Target = Local<'s, *mut JSObject>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl DerefMut for Set<'_>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

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