def METHOD_NAME(self):
    clangd_cc_path = os.path.join(self.environment.topobjdir, "clangd")
    if not os.path.exists(clangd_cc_path):
        os.mkdir(clangd_cc_path)
    # Output the database (a JSON file) to objdir/clangd/compile_commands.json
    return mozpath.join(clangd_cc_path, "compile_commands.json")