GH-90997: Wrap `yield from`/`await` in a virtual `try`/`except StopIteration` by brandtbucher · Pull Request #96010 · python/cpython · GitHub

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brandtbucher:gen-throw-new

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Pull requests 2.6k

Security and quality 0

Inline bytecode caches #90997

Use a virtual try/except to handle close()/throw()

Catch up with main

Don't load StopIteration as a constant

Clean up control flow a bit

Catch up with main

Improve docs for SEND

awaiting core review

bpo-46841: Don't jump during throw() #31968

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faster-cpython/ideas#448

This adds a lot of bulk to the bytecode. Take this minimal function:

mostly-but-not-quite working THROW branch

Yeah, like I said in the meetings: this about triples the size of the bytecode (all in the cold path, though). If all we care about here is the literal size of the bytecode, then we can pack everything in the exception h

Pack everything into END_THROW

Catch up with main

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