unary dash in @mixin uses same value every @include #2975
Description
Hi,
I've noticed that the unary dash - with a string in a mixin always uses its first computed value in the following calls. Note the recurring .test-b-asdf rule in the actual results.
LibSass processes @include test("foo2"); by removing the quotes in the output, in contrast to dart-sass which outputs an error. Because of this the two lines are commented out below.
Tested locally and with https://www.sassmeister.com/
input.scss
@mixin test($name: false) {
$a: "";
$b: "";
@if $name {
$a: "-#{$name}"; // works as expected
$b: -$name; // here occurs the bug
} @else {
$a: "";
$b: "";
}
.test-a#{$a} {
display: block;
}
.test-b#{$b} {
display: block;
}
}
@include test;
@include test(asdf);
@include test(foo1);
@include test(bar1);
// @include test("foo2");
// @include test("bar2");
Actual results
.test-a {
display: block;
}
.test-b {
display: block;
}
.test-a-asdf {
display: block;
}
.test-b-asdf {
display: block;
}
.test-a-foo1 {
display: block;
}
.test-b-asdf {
display: block;
}
.test-a-bar1 {
display: block;
}
.test-b-asdf {
display: block;
}Expected result
dart-sass 1.12.0
.test-a {
display: block;
}
.test-b {
display: block;
}
.test-a-asdf {
display: block;
}
.test-b-asdf {
display: block;
}
.test-a-foo1 {
display: block;
}
.test-b-foo1 {
display: block;
}
.test-a-bar1 {
display: block;
}
.test-b-bar1 {
display: block;
}Version info
$ node-sass --version
node-sass 4.12.0 (Wrapper) [JavaScript]
libsass 3.5.4 (Sass Compiler) [C/C++]OS: Windows 10 Enterprise 1803 x64
Environment: node.js v6.16.0
Thank you!