什么是XNoMomoMorphorphismRestriction？ [英] What is XNoMonomorphismRestriction?

问题描述

此页用法

$ ghci -XNoMonomorphismRestriction

启动haskell解释器。

XNoMonomorphismRestriction 开关是什么意思？

解决方案

它关闭 Monomorphism限制，限制值为没有使用函数表示法1定义为非多态类型。

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1通过not using function notation我的意思是它们被定义为 foo = something 而不是 foo bar = something ，即定义不包含显式参数。

This page usages

$ ghci -XNoMonomorphismRestriction

to start the haskell interpreter.

What does XNoMonomorphismRestriction switch mean?

解决方案

It turns off the Monomorphism restriction, which restricts values which are not defined using "function notation"¹ to have a non-polymorphic type.

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¹ By "not using function notation" I mean that they're defined as foo = something and not foo bar = something, i.e. the definition does not contain explicit arguments.

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