Escalating LLM-based Code Translation Benchmarking into the Class-level Era

• URL: http://arxiv.org/abs/2411.06145v2
• Date: Tue, 19 Nov 2024 07:19:27 GMT
• Title: Escalating LLM-based Code Translation Benchmarking into the Class-level Era
• Authors: Pengyu Xue, Linhao Wu, Chengyi Wang, Xiang Li, Zhen Yang, Ruikai Jin, Yuxiang Zhang, Jia Li, Yifei Pei, Zhaoyan Shen, Xiran Lyu,
• Abstract summary: ClassEval-T is a class-level code translation benchmark for Large Language Models (LLMs) Built upon ClassEval, ClassEval-T extends into Java and C++ with complete code samples and test suites, requiring 360 person-hours for manual migration.
• Score: 20.22104136730419
• License:
• Abstract: In recent years, Large Language Models (LLMs) have significantly improved automated code translation, often achieving over 80% accuracy on existing benchmarks. However, most of these benchmarks consist of short, standalone, algorithmic samples that do not reflect practical coding tasks. To address this gap, we introduce ClassEval-T, a class-level code translation benchmark designed to assess LLM performance on real-world coding scenarios. Built upon ClassEval, a class-level Python code generation benchmark covering topics such as database operations and game design, ClassEval-T extends into Java and C++ with complete code samples and test suites, requiring 360 person-hours for manual migration. We propose three translation strategies (holistic, min-dependency, and standalone) and evaluate six recent LLMs across various families and sizes on ClassEval-T. Results reveal a significant performance drop compared to method-level benchmarks, highlighting discrepancies among LLMs and demonstrating ClassEval-T's effectiveness. We further analyze LLMs' dependency awareness in translating class samples and categorize 1,397 failure cases by the best-performing LLM for practical insights and future improvement.

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