问题标签 [menhir]

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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(1e1.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?