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⚡ Bolt: 성능 개선 - 반복 호출 내 정적 변수 할당 병목 제거#203

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⚡ Bolt: 성능 개선 - 반복 호출 내 정적 변수 할당 병목 제거#203
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bolt/optimize-static-var-allocation-4224616675737924008

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@seonghobae

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💡 What:
html4tree/main.ktprocess_dir 함수 내부에서 매번 생성되던 정적 cssContent, css 문자열 및 무거운 SHA-256 해시(styleHash)를 파일의 최상위(top-level) 속성으로 추출했습니다.

🎯 Why:
디렉토리 트리를 순회하면서 process_dir 함수가 재귀적으로 호출될 때마다, 동일한 문자열이 불필요하게 다시 할당되고 비용이 큰 암호화 해시 연산이 중복해서 수행되는 병목 현상을 해결하기 위함입니다.

📊 Impact:

  • 메모리 할당(GC 압력) 감소
  • 디렉토리 1개당 발생하던 SHA-256 해시 연산 시간을 전역 단 1회로 줄여 전체 디렉토리 탐색 성능이 향상되었습니다.

🔬 Measurement:

  • JUnit CoverageTest.kt에 최상위 속성들에 대한 테스트를 추가하여 100% 명령어 커버리지를 복구 및 유지함을 검증했습니다 (./gradlew test jacocoTestReport --continue 실행으로 확인 완료).

PR created automatically by Jules for task 4224616675737924008 started by @seonghobae

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