Developer Tools
vcompression-audit
Which compression codecs are live, checked with a real round trip.
Released v1.0.0 · 2026-09-28use "stdlib/compression_audit.ven"Checks every compression builtin the interpreter offers, such as deflate, gzip, bz2 and lzma, with a real round trip call, so a program can ask which codecs are live on the virtual machine it runs under.
print compression_audit_summary()Reference (6 functions)
API reference
owner(name, owner_file, live, status)
Builds one implementation-ownership registry entry as a Map.
map_get(owner("deflate_compress / inflate_decompress", "builtins", yes, "live: round-tripped"), "name")codec_roundtrip_probe(codec_name, compress_fn, decompress_fn)
Round-trips a fixed sample string through compress_fn then decompress_fn and reports whether this VM actually recovered it.
map_get(codec_roundtrip_probe("deflate", _deflate_c, _deflate_d), "live")crc32_probe()
Proves crc32_checksum is live and deterministic on this VM.
map_get(crc32_probe(), "live")compression_owners()
length(compression_owners())compression_audit_summary()
Reduces the full registry down to a plain {"total": N, "live": M} Map.
map_get(compression_audit_summary(), "total")compression_audit_report()
length(split_text(compression_audit_report(), "\n"))