src/dawn/node/gen_napi_symbols.py

#!/usr/bin/env python3

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import os
import sys
import re
from pathlib import Path

symbols_js_file = sys.argv[1]
output_file = Path(sys.argv[2])

with open(symbols_js_file, "r") as f:
    matches = re.findall(r"napi_[a-z0-9_]*", f.read())

if output_file.suffix == '.def':
    # The target OS is Windows.
    # Generate the NapiSymbols.def file from the Napi symbol list
    with open(output_file, "w") as f:
        f.write("LIBRARY node.exe\n")
        f.write("EXPORTS\n")
        for symbol in matches:
            f.write(f"  {symbol}\n")
else:
    # The target OS is not Windows.
    # Generate the NapiSymbols.h file from the Napi symbol list
    assert output_file.suffix == ".h", output_file.suffix
    with open(output_file, "w") as f:
        matches2 = [f"NAPI_SYMBOL({symbol})" for symbol in matches]
        f.write("\n".join(matches2))