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31 lines
598 B
31 lines
598 B
var generate = require('css-tree').generate;
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function Index() {
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this.seed = 0;
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this.map = Object.create(null);
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}
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Index.prototype.resolve = function(str) {
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var index = this.map[str];
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if (!index) {
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index = ++this.seed;
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this.map[str] = index;
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}
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return index;
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};
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module.exports = function createDeclarationIndexer() {
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var ids = new Index();
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return function markDeclaration(node) {
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var id = generate(node);
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node.id = ids.resolve(id);
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node.length = id.length;
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node.fingerprint = null;
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return node;
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};
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};
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