Struct web_sys::MessageChannel
source · #[repr(transparent)]pub struct MessageChannel { /* private fields */ }
Expand description
The MessageChannel
object
This API requires the following crate features to be activated: MessageChannel
Implementations§
source§impl MessageChannel
impl MessageChannel
sourcepub fn new() -> Result<MessageChannel, JsValue>
pub fn new() -> Result<MessageChannel, JsValue>
The new MessageChannel(..)
constructor, creating a new instance of MessageChannel
This API requires the following crate features to be activated: MessageChannel
source§impl MessageChannel
impl MessageChannel
sourcepub fn port1(&self) -> MessagePort
pub fn port1(&self) -> MessagePort
The port1
getter
This API requires the following crate features to be activated: MessageChannel
, MessagePort
source§impl MessageChannel
impl MessageChannel
sourcepub fn port2(&self) -> MessagePort
pub fn port2(&self) -> MessagePort
The port2
getter
This API requires the following crate features to be activated: MessageChannel
, MessagePort
Methods from Deref<Target = Object>§
sourcepub fn has_own_property(&self, property: &JsValue) -> bool
pub fn has_own_property(&self, property: &JsValue) -> bool
The hasOwnProperty()
method returns a boolean indicating whether the
object has the specified property as its own property (as opposed to
inheriting it).
sourcepub fn is_prototype_of(&self, value: &JsValue) -> bool
pub fn is_prototype_of(&self, value: &JsValue) -> bool
The isPrototypeOf()
method checks if an object exists in another
object’s prototype chain.
sourcepub fn property_is_enumerable(&self, property: &JsValue) -> bool
pub fn property_is_enumerable(&self, property: &JsValue) -> bool
The propertyIsEnumerable()
method returns a Boolean indicating
whether the specified property is enumerable.
sourcepub fn to_locale_string(&self) -> JsString
pub fn to_locale_string(&self) -> JsString
The toLocaleString()
method returns a string representing the object.
This method is meant to be overridden by derived objects for
locale-specific purposes.
Methods from Deref<Target = JsValue>§
pub const NULL: JsValue = JsValue{ idx: JSIDX_NULL, _marker: marker::PhantomData,}
pub const UNDEFINED: JsValue = JsValue{ idx: JSIDX_UNDEFINED, _marker: marker::PhantomData,}
pub const TRUE: JsValue = JsValue{ idx: JSIDX_TRUE, _marker: marker::PhantomData,}
pub const FALSE: JsValue = JsValue{ idx: JSIDX_FALSE, _marker: marker::PhantomData,}
sourcepub fn as_f64(&self) -> Option<f64>
pub fn as_f64(&self) -> Option<f64>
Returns the f64
value of this JS value if it’s an instance of a
number.
If this JS value is not an instance of a number then this returns
None
.
sourcepub fn as_string(&self) -> Option<String>
pub fn as_string(&self) -> Option<String>
If this JS value is a string value, this function copies the JS string
value into wasm linear memory, encoded as UTF-8, and returns it as a
Rust String
.
To avoid the copying and re-encoding, consider the
JsString::try_from()
function from js-sys
instead.
If this JS value is not an instance of a string or if it’s not valid
utf-8 then this returns None
.
sourcepub fn as_bool(&self) -> Option<bool>
pub fn as_bool(&self) -> Option<bool>
Returns the bool
value of this JS value if it’s an instance of a
boolean.
If this JS value is not an instance of a boolean then this returns
None
.
sourcepub fn is_undefined(&self) -> bool
pub fn is_undefined(&self) -> bool
Tests whether this JS value is undefined
sourcepub fn is_function(&self) -> bool
pub fn is_function(&self) -> bool
Tests whether the type of this JS value is function
.
Trait Implementations§
source§impl AsRef<JsValue> for MessageChannel
impl AsRef<JsValue> for MessageChannel
source§impl AsRef<Object> for MessageChannel
impl AsRef<Object> for MessageChannel
source§impl Clone for MessageChannel
impl Clone for MessageChannel
source§fn clone(&self) -> MessageChannel
fn clone(&self) -> MessageChannel
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for MessageChannel
impl Debug for MessageChannel
source§impl Deref for MessageChannel
impl Deref for MessageChannel
source§impl From<JsValue> for MessageChannel
impl From<JsValue> for MessageChannel
source§fn from(obj: JsValue) -> MessageChannel
fn from(obj: JsValue) -> MessageChannel
source§impl From<MessageChannel> for JsValue
impl From<MessageChannel> for JsValue
source§fn from(obj: MessageChannel) -> JsValue
fn from(obj: MessageChannel) -> JsValue
source§impl From<MessageChannel> for Object
impl From<MessageChannel> for Object
source§fn from(obj: MessageChannel) -> Object
fn from(obj: MessageChannel) -> Object
source§impl FromWasmAbi for MessageChannel
impl FromWasmAbi for MessageChannel
source§impl<'a> IntoWasmAbi for &'a MessageChannel
impl<'a> IntoWasmAbi for &'a MessageChannel
source§impl IntoWasmAbi for MessageChannel
impl IntoWasmAbi for MessageChannel
source§impl JsCast for MessageChannel
impl JsCast for MessageChannel
source§fn instanceof(val: &JsValue) -> bool
fn instanceof(val: &JsValue) -> bool
instanceof
check to see whether the JsValue
provided is an instance of this type. Read moresource§fn unchecked_from_js(val: JsValue) -> Self
fn unchecked_from_js(val: JsValue) -> Self
source§fn unchecked_from_js_ref(val: &JsValue) -> &Self
fn unchecked_from_js_ref(val: &JsValue) -> &Self
source§fn is_instance_of<T>(&self) -> boolwhere
T: JsCast,
fn is_instance_of<T>(&self) -> boolwhere
T: JsCast,
T
. Read moresource§fn dyn_into<T>(self) -> Result<T, Self>where
T: JsCast,
fn dyn_into<T>(self) -> Result<T, Self>where
T: JsCast,
T
. Read moresource§fn dyn_ref<T>(&self) -> Option<&T>where
T: JsCast,
fn dyn_ref<T>(&self) -> Option<&T>where
T: JsCast,
T
. Read moresource§fn unchecked_into<T>(self) -> Twhere
T: JsCast,
fn unchecked_into<T>(self) -> Twhere
T: JsCast,
source§impl OptionFromWasmAbi for MessageChannel
impl OptionFromWasmAbi for MessageChannel
source§impl<'a> OptionIntoWasmAbi for &'a MessageChannel
impl<'a> OptionIntoWasmAbi for &'a MessageChannel
source§impl OptionIntoWasmAbi for MessageChannel
impl OptionIntoWasmAbi for MessageChannel
source§impl RefFromWasmAbi for MessageChannel
impl RefFromWasmAbi for MessageChannel
§type Abi = <JsValue as RefFromWasmAbi>::Abi
type Abi = <JsValue as RefFromWasmAbi>::Abi
Self
are recovered from.§type Anchor = ManuallyDrop<MessageChannel>
type Anchor = ManuallyDrop<MessageChannel>
Self
for the duration of the
invocation of the function that has an &Self
parameter. This is
required to ensure that the lifetimes don’t persist beyond one function
call, and so that they remain anonymous. Read moreAuto Trait Implementations§
impl RefUnwindSafe for MessageChannel
impl !Send for MessageChannel
impl !Sync for MessageChannel
impl Unpin for MessageChannel
impl UnwindSafe for MessageChannel
Blanket Implementations§
source§impl<T> ReturnWasmAbi for Twhere
T: IntoWasmAbi,
impl<T> ReturnWasmAbi for Twhere
T: IntoWasmAbi,
§type Abi = <T as IntoWasmAbi>::Abi
type Abi = <T as IntoWasmAbi>::Abi
IntoWasmAbi::Abi
source§fn return_abi(self, extra: &mut dyn Stack) -> <T as ReturnWasmAbi>::Abi
fn return_abi(self, extra: &mut dyn Stack) -> <T as ReturnWasmAbi>::Abi
IntoWasmAbi::into_abi
, except that it may throw and never
return in the case of Err
. Read more