Problem with mixins

[roman-savitskyi]

$circlePaddings = 7 19 0

_setCirclePaddings()
	for item, index in $circlePaddings
		&:nth-of-type({index+1})
			.circle-container
				padding-bottom unit(item,px)

[18:31:58] Plumber found unhandled error:
Error in plugin 'gulp-stylus'
Message:
25| value-rem = unit(value ,'rem');
26| }
27| push(values-rem,value-rem)
28| } else {
29| push(values-rem,match('px$',''+value) ? unquote(value) : value)
------------------------------------------------------------------------^
30| }
31| }
32| {prop} : values-rem;

TypeError: expected string, ident or literal, but got unit:0px

Plugin parse variable as number and get error.

Additional research: parser broke when we use the variable in the loop.

[jaywcjlove]

How did you use it?
Can you look at the source code?
@SavitskyiRoman

[roman-savitskyi]

I used via gulp.
Everything is OK except parsing loops.

Parser can't associate 'item' variable with number