Struct html5ever_stream::NodeStream
[−]
[src]
pub struct NodeStream(_);
NodeStream uses a VecDeque to fully traverse the given RcDom and emit reference
counted handles to each node as a futures::Stream. Pretty sure this won't leak
memory since everything is either owned by a NodeStream struct or Rc'd.
TODO(rossdylan) Actually verify that this doesn't leak
Examples
extern crate html5ever; extern crate hyper; extern crate html5ever_stream; extern crate futures; use futures::{Future, Stream}; use html5ever_stream::{ParserFuture, NodeStream}; use html5ever::rcdom::{RcDom, NodeData}; use hyper::Body; const TEST_HTML: &'static str = "<html> <head> <title> test </title> </head> </html>"; let body: Body = TEST_HTML.into(); let dom = ParserFuture::new(body, RcDom::default()).wait().unwrap(); NodeStream::new(&dom).for_each(|n| { match &n.data { NodeData::Element { ref name, .. } => { println!("elemn: {}", name.local); }, _ => {}, }; Ok(()) }).wait();
Methods
impl NodeStream[src]
Trait Implementations
impl Stream for NodeStream[src]
type Item = Handle
The type of item this stream will yield on success.
type Error = ()
The type of error this stream may generate.
fn poll(&mut self) -> Poll<Option<Self::Item>, Self::Error>[src]
Attempt to pull out the next value of this stream, returning None if the stream is finished. Read more
fn wait(self) -> Wait<Self>[src]
Creates an iterator which blocks the current thread until each item of this stream is resolved. Read more
fn into_future(self) -> StreamFuture<Self>[src]
Converts this stream into a Future. Read more
fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> U, [src]
F: FnMut(Self::Item) -> U,
Converts a stream of type T to a stream of type U. Read more
fn map_err<U, F>(self, f: F) -> MapErr<Self, F> where
F: FnMut(Self::Error) -> U, [src]
F: FnMut(Self::Error) -> U,
Converts a stream of error type T to a stream of error type U. Read more
fn filter<F>(self, f: F) -> Filter<Self, F> where
F: FnMut(&Self::Item) -> bool, [src]
F: FnMut(&Self::Item) -> bool,
Filters the values produced by this stream according to the provided predicate. Read more
fn filter_map<F, B>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<B>, [src]
F: FnMut(Self::Item) -> Option<B>,
Filters the values produced by this stream while simultaneously mapping them to a different type. Read more
fn then<F, U>(self, f: F) -> Then<Self, F, U> where
F: FnMut(Result<Self::Item, Self::Error>) -> U,
U: IntoFuture, [src]
F: FnMut(Result<Self::Item, Self::Error>) -> U,
U: IntoFuture,
Chain on a computation for when a value is ready, passing the resulting item to the provided closure f. Read more
fn and_then<F, U>(self, f: F) -> AndThen<Self, F, U> where
F: FnMut(Self::Item) -> U,
U: IntoFuture<Error = Self::Error>, [src]
F: FnMut(Self::Item) -> U,
U: IntoFuture<Error = Self::Error>,
Chain on a computation for when a value is ready, passing the successful results to the provided closure f. Read more
fn or_else<F, U>(self, f: F) -> OrElse<Self, F, U> where
F: FnMut(Self::Error) -> U,
U: IntoFuture<Item = Self::Item>, [src]
F: FnMut(Self::Error) -> U,
U: IntoFuture<Item = Self::Item>,
Chain on a computation for when an error happens, passing the erroneous result to the provided closure f. Read more
fn collect(self) -> Collect<Self>[src]
Collect all of the values of this stream into a vector, returning a future representing the result of that computation. Read more
fn concat2(self) -> Concat2<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default, [src]
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
Concatenate all results of a stream into a single extendable destination, returning a future representing the end result. Read more
fn concat(self) -> Concat<Self> where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator, [src]
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
: please use Stream::concat2 instead
Concatenate all results of a stream into a single extendable destination, returning a future representing the end result. Read more
fn fold<F, T, Fut>(self, init: T, f: F) -> Fold<Self, F, Fut, T> where
F: FnMut(T, Self::Item) -> Fut,
Fut: IntoFuture<Item = T>,
Self::Error: From<<Fut as IntoFuture>::Error>, [src]
F: FnMut(T, Self::Item) -> Fut,
Fut: IntoFuture<Item = T>,
Self::Error: From<<Fut as IntoFuture>::Error>,
Execute an accumulating computation over a stream, collecting all the values into one final result. Read more
fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,
<Self::Item as Stream>::Error: From<Self::Error>, [src]
Self::Item: Stream,
<Self::Item as Stream>::Error: From<Self::Error>,
Flattens a stream of streams into just one continuous stream. Read more
fn skip_while<P, R>(self, pred: P) -> SkipWhile<Self, P, R> where
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>, [src]
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
Skip elements on this stream while the predicate provided resolves to true. Read more
fn take_while<P, R>(self, pred: P) -> TakeWhile<Self, P, R> where
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>, [src]
P: FnMut(&Self::Item) -> R,
R: IntoFuture<Item = bool, Error = Self::Error>,
Take elements from this stream while the predicate provided resolves to true. Read more
fn for_each<F, U>(self, f: F) -> ForEach<Self, F, U> where
F: FnMut(Self::Item) -> U,
U: IntoFuture<Item = (), Error = Self::Error>, [src]
F: FnMut(Self::Item) -> U,
U: IntoFuture<Item = (), Error = Self::Error>,
Runs this stream to completion, executing the provided closure for each element on the stream. Read more
fn from_err<E>(self) -> FromErr<Self, E> where
E: From<Self::Error>, [src]
E: From<Self::Error>,
Map this stream's error to any error implementing From for this stream's Error, returning a new stream. Read more
fn take(self, amt: u64) -> Take<Self>[src]
Creates a new stream of at most amt items of the underlying stream. Read more
fn skip(self, amt: u64) -> Skip<Self>[src]
Creates a new stream which skips amt items of the underlying stream. Read more
fn fuse(self) -> Fuse<Self>[src]
Fuse a stream such that poll will never again be called once it has finished. Read more
fn by_ref(&mut self) -> &mut Self[src]
Borrows a stream, rather than consuming it. Read more
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe, [src]
Self: UnwindSafe,
Catches unwinding panics while polling the stream. Read more
fn buffered(self, amt: usize) -> Buffered<Self> where
Self::Item: IntoFuture,
<Self::Item as IntoFuture>::Error == Self::Error, [src]
Self::Item: IntoFuture,
<Self::Item as IntoFuture>::Error == Self::Error,
An adaptor for creating a buffered list of pending futures. Read more
fn buffer_unordered(self, amt: usize) -> BufferUnordered<Self> where
Self::Item: IntoFuture,
<Self::Item as IntoFuture>::Error == Self::Error, [src]
Self::Item: IntoFuture,
<Self::Item as IntoFuture>::Error == Self::Error,
An adaptor for creating a buffered list of pending futures (unordered). Read more
fn merge<S>(self, other: S) -> Merge<Self, S> where
S: Stream<Error = Self::Error>, [src]
S: Stream<Error = Self::Error>,
: functionality provided by select now
An adapter for merging the output of two streams. Read more
fn zip<S>(self, other: S) -> Zip<Self, S> where
S: Stream<Error = Self::Error>, [src]
S: Stream<Error = Self::Error>,
An adapter for zipping two streams together. Read more
fn chain<S>(self, other: S) -> Chain<Self, S> where
S: Stream<Item = Self::Item, Error = Self::Error>, [src]
S: Stream<Item = Self::Item, Error = Self::Error>,
Adapter for chaining two stream. Read more
fn peekable(self) -> Peekable<Self>[src]
Creates a new stream which exposes a peek method. Read more
fn chunks(self, capacity: usize) -> Chunks<Self>[src]
An adaptor for chunking up items of the stream inside a vector. Read more
fn select<S>(self, other: S) -> Select<Self, S> where
S: Stream<Item = Self::Item, Error = Self::Error>, [src]
S: Stream<Item = Self::Item, Error = Self::Error>,
Creates a stream that selects the next element from either this stream or the provided one, whichever is ready first. Read more
fn forward<S>(self, sink: S) -> Forward<Self, S> where
S: Sink<SinkItem = Self::Item>,
Self::Error: From<<S as Sink>::SinkError>, [src]
S: Sink<SinkItem = Self::Item>,
Self::Error: From<<S as Sink>::SinkError>,
A future that completes after the given stream has been fully processed into the sink, including flushing. Read more
fn split(self) -> (SplitSink<Self>, SplitStream<Self>) where
Self: Sink, [src]
Self: Sink,
Splits this Stream + Sink object into separate Stream and Sink objects. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item), [src]
F: FnMut(&Self::Item),
Do something with each item of this stream, afterwards passing it on. Read more
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error), [src]
F: FnMut(&Self::Error),
Do something with the error of this stream, afterwards passing it on. Read more