[whatwg/streams] Export "set up reader/writer" algorithms for other specs (PR #1370)

These new algorithms will allow other specifications to properly subclass `ReadableStreamDefaultReader` and/or `WritableStreamDefaultWriter`, without depending on the (internal) `SetUpReadableStreamDefaultReader` and `SetUpWritableStreamDefaultWriter` abstract ops.

Blocks https://github.com/w3c/webtransport/issues/753.
You can view, comment on, or merge this pull request online at:

  https://github.com/whatwg/streams/pull/1370?email_source=notifications&email_token=ACLYVML7KCTM26XJVD7SNRL4W7ILVA5CNFSNUABEM5UWIORPF5TWS5BNNB2WEL2QOVWGYUTFOF2WK43UF4ZTKNRTHAZDGMJYGOTHEZLBONXW5KTTOVRHGY3SNFRGKZFFMV3GK3TUVVYHEX3POBSW4X3DNRUWG2Y

-- Commit Summary --

  * Export "set up reader/writer" algorithms for other specs

-- File Changes --

    M index.bs (20)

-- Patch Links --

https://github.com/whatwg/streams/pull/1370.patch?email_source=notifications&email_token=ACLYVMMFWD3WBHEPMS2N6534W7ILVA5CNFSNUABEM5UWIORPF5TWS5BNNB2WEL2QOVWGYUTFOF2WK43UF4ZTKNRTHAZDGMJYGOTHEZLBONXW5KTTOVRHGY3SNFRGKZFFMV3GK3TUVZYHEX3QMF2GG2C7MNWGSY3Lhttps://github.com/whatwg/streams/pull/1370.diff?email_source=notifications&email_token=ACLYVMKYAJRMANHNO2474L34W7ILVA5CNFSNUABEM5UWIORPF5TWS5BNNB2WEL2QOVWGYUTFOF2WK43UF4ZTKNRTHAZDGMJYGOTHEZLBONXW5KTTOVRHGY3SNFRGKZFFMV3GK3TUVVYHEX3ENFTGMX3DNRUWG2Y
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Received on Tuesday, 21 April 2026 20:08:30 UTC