相关疑难解决方法(0)

我有隐式转换和高阶函数的问题.似乎只有转换函数至少有两个参数,函数到二阶函数的隐式转换才有效.

作品:

implicit def conv(foo: Integer => String): String => String = null

不起作用:

implicit def conv(foo: Integer => String): String => String => String = null

作品:

implicit def conv(foo: (Integer, Integer) => String): String => String => String = null

完整的失败点示例:

{
    implicit def conv(foo: Integer => String): String => String = null

    def baadf00d(foo: Integer): String = null

    def deadbeef(foo: String => String) = null

    deadbeef(conv(baadf00d))

    deadbeef(baadf00d)
}

{
    implicit def conv(foo: Integer => String): String => …