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fix: invalidate stale raw spelling on combinator value assignment - #342

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MoOx merged 1 commit into
postcss:mainfrom
SAY-5:codex/fix-combinator-value-20261005
Oct 19, 2026
Merged

MoOx merged 1 commit into
postcss:mainfrom
SAY-5:codex/fix-combinator-value-20261005

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@SAY-5 SAY-5 commented Oct 5, 2026 •

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Fixes #196.

After parsing a\tb, assigning combinator.value = ">" still serializes the old tab because raws.value wins over the new value. Clear that stale raw spelling on explicit assignment, while preserving constructor-provided raw text, unchanged clones, and the existing raw-property helpers. Assigning the same semantic space also normalizes a tab or newline as requested in the issue.

Document that replacing the value replaces comments embedded in raws.value; comments stored separately in raw spacing remain intact. Add regression tests for whitespace, named combinators, constructor option order, clone isolation, and raw helper behavior.

Validation on Node 26.3.0: seven regression assertions fail before the fix; all 75 focused tests and all 813 full-suite tests pass afterward. Coverage gates pass (94.96% lines, 95.50% branches, 97.72% functions). Build, lint, changed-source formatting, and strict declaration tests with project-local type roots pass.

The default typecheck picks up unrelated ancestor @types/node declarations and reports three errors there; the strict check with --typeRoots ./node_modules/@types passes without skipping library checks. Full formatting reports only the unchanged src/__tests__/exceptions.mjs; lint has two existing warnings in that file.

OpenAI Codex assisted with the code, tests, and description. The final patch received an independent AI review.

@MoOx
MoOx merged commit 80ab254 into postcss:main Oct 19, 2026
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MoOx added a commit to theRizwan/postcss-selector-parser that referenced this pull request Nov 8, 2026
* origin/main:
  fix: preserve selector delimiters after escaped backslashes (postcss#354)
  fix: keep the processor's entry points usable when destructured
  feat: support the case-sensitive attribute flag (s) per Selectors Level 4 (postcss#327)
  fix: escape values assigned to an id through the value setter (postcss#326)
  fix: escape class values supplied to the constructor (postcss#349)
  fix: preserve the spaces declared on selector and root containers (postcss#356)
  fix: forward the default options given to the parser factory (postcss#345)
  7.1.8
  fix: remove four more quadratic paths from selector parsing
  chore(deps): bump tinypool and oxfmt (postcss#351)
  7.1.7
  docs: add CVE-2026-104844 to the 7.1.6 changelog entry
  fix: keep whitespace around the namespace separator in attribute selectors (postcss#339)
  fix: invalidate stale raw spelling on combinator value assignment (postcss#342)
  fix: set parents for all variadic inserted nodes (postcss#343)
  Consume whitespace after hexadecimal CSS escapes (postcss#340)
  fix: lossless mode drops whitespace when a selector ends empty (postcss#337)
  chore(deps-dev): bump source-map-js from 1.2.1 to 1.2.2 (postcss#347)
  7.1.6
  fix: parse flat selectors in linear time, closing a CPU exhaustion vulnerability

# Conflicts:
#	src/parser.js
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broken api for combinator

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