如果两个模块共享相同的名称，该怎么办? [英] What should I do if two modules share the same name?

问题描述

我有两个提供相同名称模块的软件包.当我尝试加载模块时出现错误

I have two packages that provide modules with the same name. When I try to load the module I get an error

用于....的歧义接口:在多个软件包中被发现.

Ambiguous interface for ....: It was found in multiple packages.

我应该怎么做才能解决这个问题?

What should I do to resolve this?

具体来说，cryptonite软件包和crypto-api软件包都为模块提供了名称Crypto.Random.如何指定要从哪个包加载模块?

To be specific, both the cryptonite package and crypto-api package provide modules with the name Crypto.Random. How can I specify which package I want to load the module from?

推荐答案

您可以使用PackageImports语言编译指示，并像下面这样显式地选择您在import语句中表示的软件包:

You can use the PackageImports language pragma and explicitly pick the package you mean in your import statement like so:

import "cryptonite" Crypto.Random

或者，如果您同时安装了两者，但仅使用了其中之一，则可以显式列出在cabal文件中使用的依赖项，并通过cabal进行构建.

Alternatively if you have both installed but are only using one of them, you could explicitly list the dependencies you use in a cabal file and build via cabal.

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