Parsing of directives creating confusing error messages

[anlutro]

I just spent way too much time hunting down an error that turned out to be me just typing @extends instead of @extend.

The error message you get when you do this is "nested selectors may not be extended", which had me on a wild goose chase.

On further inspection it turns out that @extend %foo and @extend%foo both work fine and yield the same result, so what @extends %foo was really parsing down to was @extend s %foo.

Is this part of the SASS spec? I think enforcing the whitespace here would be the sane thing to do.

[xzyfer]

@anlutro could you please put together a http://sassmeister.com/ of the behaviour you're describing?

[anlutro]

http://sassmeister.com/gist/f0f08a8f6706f4e573e8

As you can see, because it says @extends instead of @extend the Ruby Sass parser just leaves the line alone, assuming it's valid CSS. Compiling the same Sass with libsass yields a compiler error for the reasons stated above.