[streams] Precise flow control for readable streams (#317)

Please read the commit messages for more detail.

Review welcome, of course, but also soliciting feedback on:

- desiredSize name
- Should we move strategy to a second constructor parameter, instead of putting it on the underlying source and sink?

Link to notably-changed spec sections:

- https://streams.spec.whatwg.org/branch-snapshots/precise-flow-control/#queuing-strategies
- https://streams.spec.whatwg.org/branch-snapshots/precise-flow-control/#rs-constructor
- https://streams.spec.whatwg.org/branch-snapshots/precise-flow-control/#other-stuff (both built-in queuing strategies changed significantly)
You can view, comment on, or merge this pull request online at:

  https://github.com/whatwg/streams/pull/317

-- Commit Summary --

  * Add fine-grained flow control for readable stream
  * Add a warning to writable streams

-- File Changes --

    M index.bs (252)
    M reference-implementation/lib/byte-length-queuing-strategy.js (25)
    M reference-implementation/lib/count-queuing-strategy.js (25)
    M reference-implementation/lib/helpers.js (24)
    M reference-implementation/lib/readable-stream.js (71)
    M reference-implementation/lib/writable-stream.js (27)
    M reference-implementation/test/bad-underlying-sinks.js (175)
    M reference-implementation/test/bad-underlying-sources.js (151)
    M reference-implementation/test/brand-checks.js (20)
    M reference-implementation/test/byte-length-queuing-strategy.js (20)
    M reference-implementation/test/count-queuing-strategy.js (145)
    M reference-implementation/test/pipe-to.js (78)
    M reference-implementation/test/readable-stream.js (115)
    M reference-implementation/test/writable-stream.js (191)

-- Patch Links --

https://github.com/whatwg/streams/pull/317.patch
https://github.com/whatwg/streams/pull/317.diff

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Reply to this email directly or view it on GitHub:
https://github.com/whatwg/streams/pull/317