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parsing - 手动调整 env/stack/semantic 值以实现错误恢复
我正在尝试在这个版本的项目中实现错误恢复(make
然后./parse e1.input
进行测试)。
鉴于(1
,e1.input
我希望解析器表现得好像它已解析)
并构建了一个 AST Paren (Int 1)
。因此,我尝试了
但是,它返回了一个错误Invalid_argument("feed: outgoing transition does not exist")
有谁知道为什么会出现这个错误?