Retire parser-gem frozen-string warning filter when upstream fixes it #489

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opened 2026-08-23 13:48:44 +00:00 by jared · 1 comment

jared commented

2026-08-23 13:48:44 +00:00

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Context

parser-3.3.12.0 Buffer#reencode_string (buffer.rb:97) mutates literal strings, spamming Ruby 4.0 deprecation warnings under RUBYOPT=-w. A scoped Warning filter was added in plugins/os-sdlc/tests/test_helper.rb on 2026-08-23. When whitequark/parser ships a Ruby-4.0-compatible release, upgrade and delete the filter.

Tasks

Check for a parser release > 3.3.12.0 fixing the literal mutation.
Upgrade, remove ParserFrozenStringWarningFilter from test_helper.rb, verify RUBYOPT=-w run stays clean.

Acceptance criteria

no filter needed; warning wall absent on verbose runs.

Origin

Trigger: manual full-suite run of plugins/os-sdlc tests on 2026-08-23 (77.9s, 1 failure) prompting a root-cause probe session
Improvised this session: scoped Warning.warn filter in test_helper.rb
Chain: warning wall ← parser gem mutating literal strings ← no Ruby-4.0-aware parser release — UPSTREAM-TOOL (parser 3.3.12.0)
Root candidate: this ticket

## Context parser-3.3.12.0 Buffer#reencode_string (buffer.rb:97) mutates literal strings, spamming Ruby 4.0 deprecation warnings under RUBYOPT=-w. A scoped Warning filter was added in plugins/os-sdlc/tests/test_helper.rb on 2026-08-23. When whitequark/parser ships a Ruby-4.0-compatible release, upgrade and delete the filter. ## Tasks - [ ] Check for a parser release > 3.3.12.0 fixing the literal mutation. - [ ] Upgrade, remove ParserFrozenStringWarningFilter from test_helper.rb, verify RUBYOPT=-w run stays clean. ## Acceptance criteria no filter needed; warning wall absent on verbose runs. ## Origin - Trigger: manual full-suite run of plugins/os-sdlc tests on 2026-08-23 (77.9s, 1 failure) prompting a root-cause probe session - Improvised this session: scoped Warning.warn filter in test_helper.rb - Chain: warning wall ← parser gem mutating literal strings ← no Ruby-4.0-aware parser release — UPSTREAM-TOOL (parser 3.3.12.0) - Root candidate: this ticket

jared added the

plugin/os-sdlc

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2026-08-23 13:48:44 +00:00

jared added the

frozen

label

2026-08-23 15:47:22 +00:00

jared commented

2026-08-23 15:47:23 +00:00

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Frozen 2026-08-23: upstream parser gem is still 3.3.12.0 (2026-07-16); no release, issue, or PR fixes the Buffer#reencode_string literal mutation. Nothing actionable until a newer parser ships. Filter in tests/test_helper.rb stays in place.

jared referenced this issue from a commit

2026-08-23 18:31:46 +00:00

chore(os-sdlc): add frozen_string_literal pragmas and scoped parser warning filter

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jared/cc-os#489

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