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Correctly handle empty @content blocks in a @mixin #106

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Correctly handle empty @content blocks in a @mixin #106

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4 changes: 3 additions & 1 deletion src/lib/transform-content-atrule.js
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,9 @@ export default function transformContentAtrule(rule, opts) {
// transform the clone children
return transformNode(clone, opts).then(() => {
// replace the @content at-rule with the clone children
rule.parent.insertBefore(rule, clone.nodes);
if (clone.nodes) {
rule.parent.insertBefore(rule, clone.nodes);
}

rule.remove();
})
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9 changes: 9 additions & 0 deletions test/mixins.css
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Expand Up @@ -69,3 +69,12 @@ $default-radius: 2em;
min-width: $min-width;
}
}

.test-5c {
@include mixin-test-5(50em) {
}
}

.test-5d {
@include mixin-test-5(20em);
}
10 changes: 10 additions & 0 deletions test/mixins.expect.css
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Expand Up @@ -51,3 +51,13 @@
min-width: 60em;
}
}

.test-5c {
@media (min-width: 50em) {
}
}

.test-5d {
@media (min-width: 20em) {
}
}