Issues

• Implement aspirational emit behaviors from #379

  backendenhancement
  ldayton/Tongues#404 · Filter by author ldayton opened on Jun 12, 2026

• pytest harness pipeline diverges from the CLI pipeline — tests measure different compilers

  bugtech-debt
  ldayton/Tongues#403 · Filter by author ldayton opened on Jun 12, 2026

• pycheck: set comprehension over struct-field strings inferred as set[int]

  pycheck
  ldayton/Tongues#402 · Filter by author ldayton opened on Jun 12, 2026

• JS entrypoint guard is CommonJS-Node-only — main() never runs under ESM/browser

  backend
  ldayton/Tongues#400 · Filter by author ldayton opened on Jun 12, 2026

• pycheck: reject 'return <value>' in functions annotated -> None

  pycheck
  ldayton/Tongues#399 · Filter by author ldayton opened on Jun 12, 2026

• known-failures list has no rot enforcement outside pytest

  tech-debt
  ldayton/Tongues#398 · Filter by author ldayton opened on Jun 12, 2026

• JS backend: replace _runes memo cache with proven content + boundary conversion

  backendtech-debt
  ldayton/Tongues#397 · Filter by author ldayton opened on Jun 12, 2026

• Taytsh VM: binary and octal int literals parse to 0

  bug
  ldayton/Tongues#396 · Filter by author ldayton opened on Jun 12, 2026

• JS backend: no emission for ReplaceSlice (list slice assignment)

  backendbug
  ldayton/Tongues#395 · Filter by author ldayton opened on Jun 12, 2026

• App tests: failures unmasked by honest exit-code propagation (umbrella)

  backendbug
  ldayton/Tongues#391 · Filter by author ldayton opened on Jun 12, 2026

• Perl backend: apptest_softfloat hangs (100% CPU, no output)

  backendbug
  ldayton/Tongues#389 · Filter by author ldayton opened on Jun 12, 2026

• Python backend: field access through sub-interface returns wrong value

  backendbug
  ldayton/Tongues#388 · Filter by author ldayton opened on Jun 12, 2026
  1

• Python target: JSON escaped slash (\/) mishandled in transpiled json lib

  backendbug
  ldayton/Tongues#387 · Filter by author ldayton opened on Jun 12, 2026

• Python backend: list lexicographic comparison ([1,2] < [1,3]) broken

  backendbug
  ldayton/Tongues#386 · Filter by author ldayton opened on Jun 12, 2026

• Java backend: map rune to int instead of char to support astral codepoints

  backend
  ldayton/Tongues#374 · Filter by author ldayton opened on Mar 25, 2026

• Subset: support tuple unpacking with 5+ elements in for loops

  lowering
  ldayton/Tongues#373 · Filter by author ldayton opened on Mar 25, 2026

• Ruby backend: module-level enum constants lowercased to local variables by to_snake

  backendbug
  ldayton/Tongues#366 · Filter by author ldayton opened on Mar 25, 2026

• Ruby backend: class name Array collides with Ruby builtin

  backendbug
  ldayton/Tongues#364 · Filter by author ldayton opened on Mar 25, 2026

• Ruby backend: all-uppercase field names emitted as constants, causing SyntaxError

  backendbug
  ldayton/Tongues#363 · Filter by author ldayton opened on Mar 25, 2026

• Java backend: tuple-returning function result typed as Object instead of List<Object>

  backendbug
  ldayton/Tongues#360 · Filter by author ldayton opened on Mar 25, 2026

• Perl backend: tuple element access uses verbose ref-check pattern instead of direct arrayref access

  backend
  ldayton/Tongues#358 · Filter by author ldayton opened on Mar 25, 2026

• Lowering: dict.pop(key) lowered as index read instead of remove-and-return

  buglowering
  ldayton/Tongues#357 · Filter by author ldayton opened on Mar 25, 2026
  1

• All non-Python backends: heredoc inside backtick substitution raises ParseError

  backendbug
  ldayton/Tongues#352 · Filter by author ldayton opened on Mar 24, 2026

• Constructor calls pass explicit null/undef for omitted defaulted fields

  buglowering
  ldayton/Tongues#351 · Filter by author ldayton opened on Mar 24, 2026

• Lowering: bare _Env for __init__ default_expr can't resolve module-level names

  buglowering
  ldayton/Tongues#345 · Filter by author ldayton opened on Mar 24, 2026