Stylus vs SASS vs LESS error reporting
I was curious what SASS did as far as error reporting goes, so I tried the following snippet with SASS, LESS as well as Stylus.
body {
form input {
background: foo[fail];
}
}
LESS
The output from LESS was terrible:
Syntax Error on line 4
note: that for LESS I had to tweak the input to “foo[fail’]’;” since it simply consumes the input above
SASS
The SASS output was not bad, it shows you a tiny chunk of the line for context:
Syntax error: Invalid CSS after "...background: foo": expected ";", was "[fail];"
on line 4 of standard input
Use --trace for backtrace.
note: —trace is for the ruby stack trace, not SASS
Stylus
Then we have Stylus, showing you ~8 lines of context (by default), and even a detailed stack trace including the call sites much like you would find in other languages.
Error: /tmp/stylus/test.styl:4
1|
2| body {
3| form input {
> 4| background: foo[fail];
5| }
6| }
7|
cannot perform foo[(fail)]
at "form input" (/tmp/stylus/test.styl:4)
at "body" (/tmp/stylus/test.styl:3)
