45 lines
1.6 KiB
JavaScript
45 lines
1.6 KiB
JavaScript
var resolveKeyword = require('../../../utils/names.js').keyword;
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var walkRules = require('../../../utils/walk.js').rules;
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var translate = require('../../../utils/translate.js');
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var createDeclarationIndexer = require('./createDeclarationIndexer.js');
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var processSelector = require('./processSelector.js');
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function walk(node, markDeclaration, usageData) {
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switch (node.type) {
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case 'Ruleset':
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node.block.declarations.each(markDeclaration);
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processSelector(node, usageData);
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break;
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case 'Atrule':
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if (node.expression) {
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node.expression.id = translate(node.expression);
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}
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// compare keyframe selectors by its values
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// NOTE: still no clarification about problems with keyframes selector grouping (issue #197)
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if (resolveKeyword(node.name).name === 'keyframes') {
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node.block.avoidRulesMerge = true; /* probably we don't need to prevent those merges for @keyframes
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TODO: need to be checked */
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node.block.rules.each(function(ruleset) {
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ruleset.selector.selectors.each(function(simpleselector) {
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simpleselector.compareMarker = simpleselector.id;
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});
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});
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}
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break;
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}
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};
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module.exports = function prepare(ast, usageData) {
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var markDeclaration = createDeclarationIndexer();
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walkRules(ast, function(node) {
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walk(node, markDeclaration, usageData);
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});
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return {
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declaration: markDeclaration
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};
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};
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