是否支持使用父选择器如下？-Doessasssupporttouseparentselectorasfollows?

I mainly use the following methods. (SASS)

我主要使用以下方法。 (SASS)

.person {
    &.man {
        .head { A }
    }

    &.woman {
        .head { B }
    }

    .head { C }
}

But I want to use the following method. (SASS)

但我想使用以下方法。 (SASS)

.person {
    .head {
        C

         {
            A
        }

         {
            B
        }
    }
}

compiled result (CSS)

编译结果(CSS)

.person .head { C }
.person.man .head { A }
.person.woman .head { B }

I want to know if there is such a function. Thank you.

我想知道是否有这样的功能。谢谢。

I got the idea from @falsarella's @at-root approach. It seems a bit crude, but this is also possible. (I actually used deeper selectors than the example, so it was hard to solve with at-root and #{$} alone.)

我从@ falsarella的@ at-root方法中得到了这个想法。看起来有点粗糙,但这也是可能的。 (我实际上使用了比示例更深的选择器,所以很难用at-root和#{$}单独解决。)

.person {
    $person: &;

    .head {
        C

        @at-root #{$person}.man .head {
            A
        }

        @at-root #{$person}.woman .head {
            B
        }
    }
}

Or it would be more convenient and readable(If the parent selector is not a simple selector.) to use it by naming $parent and overriding the previous $parent.

或者它更方便和可读(如果父选择器不是一个简单的选择器。)通过命名$ parent并覆盖前一个$ parent来使用它。

When I think about it once, the current selector is named $parent, so it is confusing. It might be better to ignore '>', ':after', ... of a parent selector and just name it as $person. (or create naming conventions.)

当我考虑一次时,当前选择器被命名为$ parent,因此它令人困惑。最好忽略父选择器的'>',':after',...并将其命名为$ person。 (或创建命名约定。)

.earth {
    $parent: &;

    .person {
        $parent: &;

        .head {
            C

            @at-root #{$parent}.man .head {
                A
            }

            @at-root #{$parent}.woman .head {
                B
            }
        }
    }
}

As a result of further Googling, postcss seems to support parent selectors I want.

由于进一步谷歌搜索,postcss似乎支持我想要的父选择器。

3 个解决方案

.person {
    .head {
        color: white;

        @at-root .man#{&} {
            color: blue;
        }

        @at-root .woman#{&} {
            color: pink;
        }
    }
}

.person .head {
  color: white;
}
.man.person .head {
  color: blue;
}
.woman.person .head {
  color: pink;
}

  .head {
    .person & {
      color: red;
    }
    .person.man & {
      color: blue;
    }
    .person.woman & {
      color: green;
    }
  }

@mixin personHead($gender) {
    @if $gender == man {
        &.man .head{
            property: A; 
        }
    }
    @if $gender == woman {
        &.woman .head{
            property: B; 
        }
    }
    @if $gender == "" {
        .head{
            property: C; 
        }
    }
}

.person { @include personHead(man); }
.person { @include personHead(woman); }
.person { @include personHead(""); }


/* Compiled CSS Output */

.person.man .head {
    property: A;
}

.person.woman .head {
    property: B;
}

.person .head {
    property: C;
}