[mikamikasuki]

Summary

The JavaScript Code node parameter scanner counts delimiters inside regex literals as signature structure. A valid default such as /[(]/ can therefore make extraction return no parameters; applying generated code then drops the node inputs. This change skips regex literal contents while scanning the main signature and top-level parameters, while preserving ordinary division. Regression cases cover regexes after operators, arrow defaults, control-flow bodies, and standalone blocks.

Fixes #44407

Validation

• ../node_modules/.bin/vp test --project unit app/components/workflow/nodes/code/__tests__/code-parser.spec.ts — 67 passed.
• ../node_modules/.bin/vp test --project unit --coverage --coverage.include=app/components/workflow/nodes/code/code-parser.ts --coverage.reporter=text app/components/workflow/nodes/code/__tests__/code-parser.spec.ts — 67 passed; 98.42% line coverage and 93.75% branch coverage for code-parser.ts.
• ../node_modules/.bin/vp check app/components/workflow/nodes/code/code-parser.ts app/components/workflow/nodes/code/__tests__/code-parser.spec.ts — formatting, lint, and type checks passed.
• git diff --check — passed.
• On upstream main aa35579b66615a9620c6dfb0410b1d6cd99a4fea, regression cases for regexes after else, catch, finally, and switch blocks fail; they pass on this branch.
• GitHub checks for head 3e2e886: 35 successful, 9 skipped. Codecov reports 99.10% patch coverage with one changed line uncovered; its report is one commit behind the current head.

Review gate

At least one approving review from a reviewer with write access is required; both requested code-owner reviews are pending.

Checklist

• I understand that this PR may be closed if there was no previous discussion or issues.
• I verified the change and added regression tests.

From Codex

[codecov]

Codecov Report

❌ Patch coverage is 99.10714% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 88.80%. Comparing base (75989ef) to head (08df1b2).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
.../app/components/workflow/nodes/code/code-parser.ts	99.10%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #44409   +/-   ##
=======================================
  Coverage   88.80%   88.80%           
=======================================
  Files        5558     5558           
  Lines      332910   333008   +98     
  Branches    66663    66721   +58     
=======================================
+ Hits       295635   295723   +88     
- Misses      32093    32103   +10     
  Partials     5182     5182           

Flag	Coverage Δ
dify-ui	91.67% <ø> (ø)
web	88.47% <99.10%> (+0.01%)	⬆️

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