Franz Busch 8dda2274bc Replace custom Deque implementation with swift-collection Deque ...

# Motivation
For AsyncStream we created a custom internal Deque implementation to use for the buffering. This implementation was relatively bare-bones compared to the one in swift-collections. Furthermore, it lacked some methods that we need to implement the new `AsyncStream` APIs that support producer backpressure.

# Modification
This PR copies over the Deque implementation of swift-collections and makes it internal and non-inlinable.

# Result
We now have a fully functional Deque.

2023-07-23 08:33:03 +01:00

2.3 KiB

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