utils.py 文件源码

def get_expr_value_src_dst(src_node, dst_node, name):
    test_node = None
    if isinstance(name, ast.Name):
        name = name.id
    if isinstance(dst_node, ast.Name) and dst_node.id == name:
        test_node = src_node
    elif isinstance(dst_node, (ast.List, ast.Tuple)) and isinstance(src_node, (ast.List, ast.Tuple)):
        targets = [elt.id for elt in dst_node.elts if isinstance(elt, ast.Name)]
        if name in targets:
            test_node = src_node.elts[targets.index(name)]
    return test_node