我正在创建一个字体模块,其中包含我的所有webfonts和一些Sass mixins来写出@font-face
声明。主要的mixin类似于includeFont(name, weight, style)
。
我会在一些Sass变量中保留一个记录,其中哪些字体的重量和样式实际上是可用的,并且通过巧妙地对此我想我可以写mixin以便我可以检测到我是否可以尝试并请求一个不存在的字体。
但是当我发现这种情况时,我怎么能抛出错误?
答案 0 :(得分:6)
从Sass 3.4.0开始,您可以使用@error
指令导致致命错误:
$stuff: fubar;
@if ($stuff == fubar) {
@error "stuff is fubar";
}
如果您尝试在shell中编译它,您将看到以下内容:
$ sass test.scss
Error: stuff is fubar
on line 3 of test.scss
Use --trace for backtrace.
还有相关的@warn
和@debug
指令在语言中使用的时间更长,以防对您更有用。例如:
@debug "stuff is happening";
@warn "stuff is happening that probably shouldn't be happening";
/*
Note that these directives do not terminate execution, and this block
will therefore still be output.
*/
* {
color: pink;
}
编译时:
$ sass test2.scss
test2.scss:1 DEBUG: stuff is happening
WARNING: stuff is happening that probably shouldn't be happening
on line 2 of test2.scss
/*
Note that these directives do not terminate execution, and this block
will therefore still be output.
*/
* {
color: pink; }