[−][src]Struct deno_core::EsIsolate
More specialized version of CoreIsolate
that provides loading
and execution of ES Modules.
Creating EsIsolate
requires to pass loader
argument
that implements ModuleLoader
trait - that way actual resolution and
loading of modules can be customized by the implementor.
Fields
modules: Modules
Implementations
impl EsIsolate
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pub fn new(
loader: Rc<dyn ModuleLoader>,
startup_data: StartupData,
will_snapshot: bool
) -> Box<Self>
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loader: Rc<dyn ModuleLoader>,
startup_data: StartupData,
will_snapshot: bool
) -> Box<Self>
pub fn mod_evaluate(&mut self, id: ModuleId) -> Result<(), ErrBox>
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Evaluates an already instantiated ES module.
ErrBox can be downcast to a type that exposes additional information about the V8 exception. By default this type is JSError, however it may be a different type if CoreIsolate::set_js_error_create_fn() has been used.
pub fn module_resolve_cb(
&mut self,
specifier: &str,
referrer_id: ModuleId
) -> ModuleId
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&mut self,
specifier: &str,
referrer_id: ModuleId
) -> ModuleId
pub fn dyn_import_cb(
&mut self,
resolver_handle: Global<PromiseResolver>,
specifier: &str,
referrer: &str
)
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&mut self,
resolver_handle: Global<PromiseResolver>,
specifier: &str,
referrer: &str
)
pub async fn load_module<'_, '_>(
&'_ mut self,
specifier: &'_ ModuleSpecifier,
code: Option<String>
) -> Result<ModuleId, ErrBox>
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&'_ mut self,
specifier: &'_ ModuleSpecifier,
code: Option<String>
) -> Result<ModuleId, ErrBox>
Asynchronously load specified module and all of it's dependencies
User must call Isolate::mod_evaluate
with returned ModuleId
manually after load is finished.
Methods from Deref<Target = CoreIsolate>
pub fn register_op<F>(&mut self, name: &str, op: F) -> OpId where
F: Fn(&mut CoreIsolate, &[u8], Option<ZeroCopyBuf>) -> Op + 'static,
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F: Fn(&mut CoreIsolate, &[u8], Option<ZeroCopyBuf>) -> Op + 'static,
Defines the how Deno.core.dispatch() acts. Called whenever Deno.core.dispatch() is called in JavaScript. zero_copy_buf corresponds to the second argument of Deno.core.dispatch().
Requires runtime to explicitly ask for op ids before using any of the ops.
pub fn set_js_error_create_fn(
&mut self,
f: impl Fn(JSError) -> ErrBox + 'static
)
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&mut self,
f: impl Fn(JSError) -> ErrBox + 'static
)
Allows a callback to be set whenever a V8 exception is made. This allows the caller to wrap the JSError into an error. By default this callback is set to JSError::create.
pub fn dispatch_op<'s>(
&mut self,
scope: &mut impl ToLocal<'s>,
op_id: OpId,
control_buf: &[u8],
zero_copy_buf: Option<ZeroCopyBuf>
) -> Option<(OpId, Box<[u8]>)>
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&mut self,
scope: &mut impl ToLocal<'s>,
op_id: OpId,
control_buf: &[u8],
zero_copy_buf: Option<ZeroCopyBuf>
) -> Option<(OpId, Box<[u8]>)>
pub fn execute(
&mut self,
js_filename: &str,
js_source: &str
) -> Result<(), ErrBox>
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&mut self,
js_filename: &str,
js_source: &str
) -> Result<(), ErrBox>
Executes traditional JavaScript code (traditional = not ES modules)
ErrBox can be downcast to a type that exposes additional information about the V8 exception. By default this type is JSError, however it may be a different type if CoreIsolate::set_js_error_create_fn() has been used.
pub fn snapshot(&mut self) -> StartupData
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Takes a snapshot. The isolate should have been created with will_snapshot set to true.
ErrBox can be downcast to a type that exposes additional information about the V8 exception. By default this type is JSError, however it may be a different type if CoreIsolate::set_js_error_create_fn() has been used.
Trait Implementations
impl Deref for EsIsolate
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type Target = CoreIsolate
The resulting type after dereferencing.
fn deref(&self) -> &Self::Target
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impl DerefMut for EsIsolate
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impl Future for EsIsolate
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Auto Trait Implementations
impl !RefUnwindSafe for EsIsolate
impl !Send for EsIsolate
impl !Sync for EsIsolate
impl Unpin for EsIsolate
impl !UnwindSafe for EsIsolate
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Downcast for T where
T: Any,
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T: Any,
fn into_any(self: Box<T>) -> Box<dyn Any + 'static>
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
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fn as_any(&self) -> &(dyn Any + 'static)
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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impl<T> From<T> for T
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impl<T> FutureExt for T where
T: Future + ?Sized,
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T: Future + ?Sized,
fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
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F: FnOnce(Self::Output) -> U,
fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>,
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Self::Output: Into<U>,
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
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F: FnOnce(Self::Output) -> Fut,
Fut: Future,
fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,
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B: Future<Output = Self::Output>,
fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,
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A: Future<Output = Self::Output>,
fn into_stream(self) -> IntoStream<Self>
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fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
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Self::Output: Future,
fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
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Self::Output: Stream,
fn fuse(self) -> Fuse<Self>
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fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
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F: FnOnce(&Self::Output),
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
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Self: UnwindSafe,
fn shared(self) -> Shared<Self> where
Self::Output: Clone,
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Self::Output: Clone,
fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
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fn boxed<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send>> where
Self: Send + 'a,
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Self: Send + 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a>> where
Self: 'a,
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Self: 'a,
fn unit_error(self) -> UnitError<Self>
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fn never_error(self) -> NeverError<Self>
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fn poll_unpin(&mut self, cx: &mut Context) -> Poll<Self::Output> where
Self: Unpin,
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Self: Unpin,
fn now_or_never(self) -> Option<Self::Output>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<F> IntoFuture for F where
F: Future,
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F: Future,
type Output = <F as Future>::Output
into_future
)The output that the future will produce on completion.
type Future = F
into_future
)Which kind of future are we turning this into?
fn into_future(self) -> <F as IntoFuture>::Future
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<F, T, E> TryFuture for F where
F: Future<Output = Result<T, E>> + ?Sized,
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F: Future<Output = Result<T, E>> + ?Sized,
type Ok = T
The type of successful values yielded by this future
type Error = E
The type of failures yielded by this future
fn try_poll(self: Pin<&mut F>, cx: &mut Context) -> Poll<<F as Future>::Output>
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impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
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Fut: TryFuture + ?Sized,
fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
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Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnOnce(Self::Ok) -> T,
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F: FnOnce(Self::Ok) -> T,
fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T,
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E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T,
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
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F: FnOnce(Self::Error) -> E,
fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,
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Self::Error: Into<E>,
fn ok_into<U>(self) -> OkInto<Self, U> where
Self::Ok: Into<U>,
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Self::Ok: Into<U>,
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
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F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
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F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnOnce(&Self::Ok),
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F: FnOnce(&Self::Ok),
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnOnce(&Self::Error),
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F: FnOnce(&Self::Error),
fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
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Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
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Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F> where
F: FnOnce(Self::Error) -> Self::Ok,
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F: FnOnce(Self::Error) -> Self::Ok,
fn compat(self) -> Compat<Self> where
Self: Unpin,
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Self: Unpin,
fn into_future(self) -> IntoFuture<Self>
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fn try_poll_unpin(
&mut self,
cx: &mut Context
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
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&mut self,
cx: &mut Context
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,