CodeSage: Code Representation Learning At Scale

This repository contains the data and inference code of the ICLR 2024 paper "CodeSage: Code Representation Learning At Scale."

Work done by Dejiao Zhang*, Wasi Uddin Ahmad*, Ming Tan, Hantian Ding, Ramesh Nallapati, Dan Roth, Xiaofei Ma, Bing Xiang (* indicates equal contribution).

Overview

An overview of the key ingredients of CodeSage for code representation learning.

Environment Setup

conda create -n codesage_eval python=3.10
conda activate codesage_eval
pip install -r requirements.txt

Note

CodeSage has been trained with block-attention. It requires appending the EOS token at the end of each sequence to ensure good performance. Below is an example of downloading the model and tokenizer.

model = AutoModel.from_pretrained("codesage/codesage-small", trust_remote_code=True)
tokenizer = AutoTokenizer("codesage/codesage-small", add_eos_token=True, trust_remote_code=True)

inputs = tokenizer.encode("def print_hello_world():\tprint('Hello World!')", return_tensors="pt").to(device)

embedding = model(inputs)[0]

print(f'Dimension of the embedding: {embedding[0].size()}')
# Dimension of the embedding: torch.Size([14, 1024])

Run Evaluation

Code-to-Code Search

See data preparation before running evaluation scripts.

bash scripts/run_code2code_search.sh MODEL_NAME SRC_LANG TGT_LANG

where

• MODEL_NAME = [codesage-small|codesage-base|codesage-large]
• SRC_LANG and TGT_LANG = [python|java|c|c++|csharp|ruby|php|go|javascript|typescript]

Text-to-Code Search

See data preparation before running evaluation scripts.

bash scripts/run_nl2code_search.sh MODEL_NAME DATASET_NAME

where

• MODEL_NAME = [codesage-small|codesage-base|codesage-large]
• SRC_LANG and TGT_LANG = [cosqa|advTest|csn]

Code Classification

# clone detection
bash scripts/run_clone_detection.sh
# complexity prediction
bash scripts/run_complexity_prediction.sh
# defect prediction
bash scripts/run_defect_prediction.sh
# runtime error prediction
bash scripts/run_runtime_error_prediction.sh

Benchmark

Wanna compare CodeSage against the latest embedding model? Check out our code for benchmarking

Citation

@inproceedings{
    zhang2024codesage,
    title={CodeSage: Code Representation Learning At Scale},
    author={Dejiao Zhang* and Wasi Ahmad* and Ming Tan and Hantian Ding and Ramesh Nallapati and Dan Roth and Xiaofei Ma and Bing Xiang},
    booktitle={The Twelfth International Conference on Learning Representations },
    year={2024},
    url={https://openreview.net/forum?id=vfzRRjumpX}
}

Contact

If you have any question regarding our paper or code, please feel free to start an issue or email Dejiao Zhang (dejiaozhang@gmail.com) and Wasi Ahmad (wasicse90@gmail.com).

Security

See CONTRIBUTING for more information.

License

This project is licensed under the Apache-2.0 License.