Struct progenitor_client::ByteStream

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pub struct ByteStream(/* private fields */);

Expand description

Untyped byte stream used for both success and error responses.

Implementations§

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impl ByteStream

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pub fn new( inner: Pin<Box<dyn Stream<Item = Result<Bytes>> + Send + Sync>> ) -> Self

Creates a new ByteStream

Useful for generating test fixtures.

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pub fn into_inner( self ) -> Pin<Box<dyn Stream<Item = Result<Bytes>> + Send + Sync>>

Consumes the ByteStream and return its inner Stream.

Methods from Deref<Target = Pin<Box<dyn Stream<Item = Result<Bytes>> + Send + Sync>>>§

1.33.0 · source

pub fn as_ref(&self) -> Pin<&::Target>

Gets a pinned shared reference from this pinned pointer.

This is a generic method to go from &Pin<Pointer<T>> to Pin<&T>. It is safe because, as part of the contract of Pin::new_unchecked, the pointee cannot move after Pin<Pointer<T>> got created. “Malicious” implementations of Pointer::Deref are likewise ruled out by the contract of Pin::new_unchecked.

1.33.0 · source

pub fn as_mut(&mut self) -> Pin<&mut ::Target>

Gets a pinned mutable reference from this pinned pointer.

This is a generic method to go from &mut Pin<Pointer<T>> to Pin<&mut T>. It is safe because, as part of the contract of Pin::new_unchecked, the pointee cannot move after Pin<Pointer<T>> got created. “Malicious” implementations of Pointer::DerefMut are likewise ruled out by the contract of Pin::new_unchecked.

This method is useful when doing multiple calls to functions that consume the pinned type.

Example

use std::pin::Pin;

impl Type {
    fn method(self: Pin<&mut Self>) {
        // do something
    }

    fn call_method_twice(mut self: Pin<&mut Self>) {
        // `method` consumes `self`, so reborrow the `Pin<&mut Self>` via `as_mut`.
        self.as_mut().method();
        self.as_mut().method();
    }
}

1.33.0 · source

pub fn set(&mut self, value: ::Target)
where ::Target: Sized,

Assigns a new value to the memory behind the pinned reference.

This overwrites pinned data, but that is okay: its destructor gets run before being overwritten, so no pinning guarantee is violated.

Example

use std::pin::Pin;

let mut val: u8 = 5;
let mut pinned: Pin<&mut u8> = Pin::new(&mut val);
println!("{}", pinned); // 5
pinned.as_mut().set(10);
println!("{}", pinned); // 10