WIP: implement PerlIO via runtime layers#826
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Snapshot the current PerlIO::via::Timeout CPAN workaround and the canonical :via(...) runtime design before starting the implementation. Generated with Codex (https://openai.com/codex) Co-Authored-By: Codex <codex@openai.com>
Add a Java ViaLayer bridge for :via(...) PerlIO layers, including PUSHED, READ, FILL, WRITE, lifecycle, and metadata callbacks over a borrowed glob-backed below handle. Make binmode layer pushes return status and preserve the original handle on failed pushes. Add focused unit coverage and fix MIME::QuotedPrint final soft-break parity exposed by PerlIO::via::QuotedPrint. Updates dev/design/perlio-via.md progress tracking. Generated with Codex (https://openai.com/codex) Co-Authored-By: Codex <codex@openai.com>
Keep failed :via(...) PUSHED fatal for open(), but do not fail open() for other unsupported layer specs that PerlOnJava historically warned about or ignored. This restores perl5_t io/perlio_leaks.t and io/open.t pass counts while preserving the via failure contract. Generated with Codex (https://openai.com/codex) Co-Authored-By: Codex <codex@openai.com>
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Summary
jcpan -t PerlIO::via::Timeoutpasses while runtime:via(...)remains unimplementeddev/design/perlio-via.mdas the canonical plan for functional runtime:via(...)layersVerification
maketimeout 600 ./jcpan -t PerlIO::via::Timeoutgit diff --checkbash -n dev/tools/test-cpan-distroprefs.shWIP
Runtime
:via(...)implementation is next.