def _compile(node, source=None, mode='eval', filename=None, lineno=-1,
             xform=None):
    if not filename:
        filename = '<string>'
    if IS_PYTHON2:
        # Python 2 requires non-unicode filenames
        if isinstance(filename, str):
            filename = filename.encode('utf-8', 'replace')
    else:
        # Python 3 requires unicode filenames
        if not isinstance(filename, str):
            filename = filename.decode('utf-8', 'replace')
    if lineno <= 0:
        lineno = 1

    if xform is None:
        xform = {
            'eval': ExpressionASTTransformer
        }.get(mode, TemplateASTTransformer)
    tree = xform().visit(node)

    if mode == 'eval':
        name = '<Expression %r>' % (source or '?')
    else:
        lines = source.splitlines()
        if not lines:
            extract = ''
        else:
            extract = lines[0]
        if len(lines) > 1:
            extract += ' ...'
        name = '<Suite %r>' % (extract)
    new_source = ASTCodeGenerator(tree).code
    code = compile(new_source, filename, mode)

    try:
        # We'd like to just set co_firstlineno, but it's readonly. So we need
        # to clone the code object while adjusting the line number
        return build_code_chunk(code, filename, name, lineno)
    except RuntimeError:
        return code
dataset/ETHPy150Open timonwong/OmniMarkupPreviewer/OmniMarkupLib/Renderers/libs/python3/genshi/template/eval.py/_compile/original