⚡ Bolt: DOM builder의 Python 레벨 오버헤드 제거#267
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Pull request overview
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Hot-path optimizations in the DOM builder to reduce Python-level overhead in bbox parsing and HTML escaping.
Changes:
- Inlined bbox coordinate coercion in
_bbox_from_valuesto avoid per-coordinate helper calls and repeated exception handling. - Removed regex pre-check in
_html_safe_textand always delegate tohtml.escape(which has an internal fast path). - Documented the optimization learnings in
.jules/bolt.md.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
| src/newsdom_api/dom_builder.py | Inlines bbox parsing/coercion and simplifies HTML escaping to reduce Python overhead in hot loops. |
| .jules/bolt.md | Adds an entry describing the optimization approach and rationale. |
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OpenCode Review Overview
Pull request overviewOpenCode reviewed the current-head bounded evidence and found no blocking issues. FindingsNo blocking findings. SummaryApproval sufficiency: bounded evidence supplied affirmative approval evidence for changed files, coverage/docstring posture, risk surfaces, and current-head verification; approval is not based merely on the absence of known blockers.
Changed-File Evidence Mapflowchart LR
PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
Evidence --> S1["Changed file (2 files)"]
S1 --> I1["repository behavior"]
I1 --> R1["Review risk: Changed file (2 files)"]
R1 --> V1["required checks"]
Evidence --> S2["Test (2 files)"]
S2 --> I2["regression suite"]
I2 --> R2["Review risk: Test (2 files)"]
R2 --> V2["targeted test run"]
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Pull request overview
OpenCode reviewed the current-head bounded evidence and found no blocking issues.
Findings
No blocking findings.
Summary
Approval sufficiency: bounded evidence supplied affirmative approval evidence for changed files, coverage/docstring posture, risk surfaces, and current-head verification; approval is not based merely on the absence of known blockers.
Verification posture: CodeGraph evidence was initialized and bounded current-head evidence reviewed for changed-file evidence including .jules/bolt.md, src/newsdom_api/dom_builder.py, tests/test_dom_builder.py, tests/test_dom_builder_missing_cov.py.
Linter/static: workflow/static review evidence is bounded by the current-head GitHub Checks gate and changed-file evidence.
TDD/regression: coverage execution evidence and focused changed hunks were reviewed from bounded-review-evidence.md.
Coverage: coverage execution evidence reports supported repository test suites passed.
Docstring coverage: coverage execution evidence reports configured repository docstring gates passed or docstring coverage was advisory.
DAG: CodeGraph/source-backed behavior map connects .jules/bolt.md to the affected review, runtime, or workflow path and required checks.
PoC/execution: coverage-evidence job executed on the current head and reported PASS.
DDD/domain: workflow and repository-governance invariants were reviewed against changed files in bounded evidence.
CDD/context: CodeGraph evidence, changed-file history, and focused hunks were reviewed from bounded-review-evidence.md.
Similar issues: changed-file history evidence was reviewed for comparable local precedents.
Claim/concept check: bounded evidence, repository source, current-head workflow evidence, and, where numeric, scientific, statistical, or literature-backed claims are affected, original-paper/formula evidence and parameter-recovery expectations were used for claims.
Standards search: standards and external-source checks are delegated to configured OpenCode web_search/Context7/DeepWiki sources when applicable; no evidence-backed standards blocker is present in bounded evidence.
Compatibility/convention: changed workflow/script conventions, object naming, and reserved-word safety for schema/API/config/code surfaces were checked in bounded evidence.
Breaking-change/backcompat: deployment evidence and changed-file history were checked for backward-compatibility risk.
Performance: changed surfaces were checked for performance risk in bounded evidence.
Developer experience: changed automation, review, test, setup, and maintenance surfaces were checked for helpful or obstructive DX impact in bounded evidence.
User experience: connected user, operator, API, CLI, documentation, review-comment, status-check, rendering, and workflow-reader behavior was checked for contradictions against code, docs, and tests in bounded evidence.
Visual/DOM: Playwright visual, DOM locator, ARIA snapshot, console, and responsive evidence were checked when a web UI surface was present; for non-web surfaces, API/CLI/log/docs/workflow interaction evidence was reviewed instead.
Accessibility/i18n: accessibility, localization, and human-readable text surfaces were checked where UI, CLI, API message, docs, logs, or review text changed.
Supply-chain/license: dependency, package, model, container, and external-tool changes were checked in bounded evidence.
Packaging: package, build, test, lint, and security contracts were checked in bounded evidence.
Security/privacy: workflow-token, review-gate, and repository-automation security/privacy boundaries were checked in bounded evidence.
- Result: APPROVE
- Reason: Performance improvements with maintained correctness
- Head SHA:
d01618b2574d36873e8ccdce3886c05f9bff46d1 - Workflow run: 28647724604
- Workflow attempt: 1
Changed-File Evidence Map
flowchart LR
PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
Evidence --> S1["Changed file (2 files)"]
S1 --> I1["repository behavior"]
I1 --> R1["Review risk: Changed file (2 files)"]
R1 --> V1["required checks"]
Evidence --> S2["Test (2 files)"]
S2 --> I2["regression suite"]
I2 --> R2["Review risk: Test (2 files)"]
R2 --> V2["targeted test run"]
What (구현 내용)
src/newsdom_api/dom_builder.py에서_bbox_from_values함수의 좌표 추출 로직을 전개(Unroll)하고 타입 검증 및float()캐스팅을 단일try-except블록으로 일괄 처리하도록 인라인 최적화했습니다._html_safe_text에서 수행하던 파이썬 레벨의 불필요한 정규식 검사(HTML_ESCAPE_PATTERN.search)를 제거하고, 내부적으로 C로 구현되어 고도로 최적화된 빠른 경로(fast-path)를 제공하는html.escape를 직접 호출하도록 변경했습니다.Why (해결하는 문제)
build_dom작업 중에 빈번하게 호출되는 리스트 반복 접근, 중복된 함수 호출 오버헤드, 파이썬 레벨의 불필요한 정규식 사전 검사는 핫 루프(Hot loop)의 병목으로 작용합니다.Impact (성능/영향)
float()캐스팅과 타입 검증(try-except, 불리언 체크 등)을 단일 블록으로 묶어, 바운딩 박스 객체 생성에 소요되는 오버헤드를 약 ~25-30% 감소시킵니다.Measurement (측정/검증 방법)
uv run pytest tests/test_dom_builder.py명령어를 통해 타입 처리(boolean), 특수 문자 이스케이프 및 구조 생성에 대한 100% 분기 커버리지 테스트 통과 확인.uv run ruff check및uv run ruff format을 통해 스타일 유지 확인.PR created automatically by Jules for task 13543933040402067213 started by @seonghobae