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Haskell 在 Racket 中有类似 gensym 的东西吗？

[英]Does Haskell have something like gensym in Racket?

原文 2011-06-07 20:34:21 8 1 haskell/ compiler-construction/ uniqueidentifier

It seems that Haskell does not the type of symbol as that in Racket?似乎 Haskell 不像球拍中的symbol类型？
Is there something that can generate symbols like gensym in Racket?有什么东西可以在 Racket 中生成像gensym这样的符号吗？ eg in Racket, (gensym 'label) can give 'label2391例如在 Racket 中， (gensym 'label)可以给出'label2391

1 个解决方案

The standard unique supply is Data.Unique .标准的唯一供应是Data.Unique 。 For meta-programming purposes, Template Haskell also provides unique names .出于元编程目的，模板 Haskell 还提供了唯一名称。

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相关问题 Lisp 是否有类似 Haskell 的 takeWhile function 的东西？ - Does Lisp have something like Haskell's takeWhile function? 什么编程语言有类似Haskell的`newtype` - What programming languages have something like Haskell’s `newtype` Haskell中有类似字典的东西吗？ - Is there something like dictionary in Haskell? 是否有类似于Haskell的Incanter？ - Is there something like Incanter for Haskell? Prolog是否有像Haskell这样的别名“运算符”？ - Does Prolog have an alias “operator” like Haskell? OCaml的语法是否像Haskell的++？ - Does OCaml have syntax like Haskell's ++? Haskell是否具有类似于后期绑定的东西（或者，我们可以更改正在进行的Haskell程序的函数定义）吗？ - Does Haskell have Something Analogous to Late Binding (or, can we change the definition of functions of an ongoing Haskell program)? Free Pascal 有像 Haskell 这样的类型变量吗？ - Does Free Pascal have type variables like Haskell? Haskell 是否有像 Python 和 Ruby 这样的 splat 运算符？ - Does Haskell have a splat operator like Python and Ruby? Haskell 可以像球拍的比赛一样在 S-Expression 上匹配吗？ - Can Haskell match on S-Expression like match of Racket?

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