26 lines
1023 B
JavaScript
26 lines
1023 B
JavaScript
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module.exports = function resolveNestedSelector(selector, node) {
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var parent = node.parent;
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var parentIsNestAtRule = parent.type === 'atrule' && parent.name === 'nest';
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if (parent.type === 'root') return [selector];
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if (parent.type !== 'rule' && !parentIsNestAtRule) return resolveNestedSelector(selector, parent);
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var parentSelectors = (parentIsNestAtRule)
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? parent.params.split(',').map(function(s) { return s.trim(); })
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: parent.selectors;
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var resolvedSelectors = parentSelectors.reduce(function(result, parentSelector) {
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if (selector.indexOf('&') !== -1) {
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var newlyResolvedSelectors = resolveNestedSelector(parentSelector, parent).map(function(resolvedParentSelector) {
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return selector.replace(/&/g, resolvedParentSelector);
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});
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return result.concat(newlyResolvedSelectors);
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}
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var combinedSelector = [ parentSelector, selector ].join(' ');
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return result.concat(resolveNestedSelector(combinedSelector, parent));
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}, []);
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return resolvedSelectors;
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}
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