createDeclarationIndexer.cjs•667 B
'use strict';
const cssTree = require('css-tree');
class Index {
constructor() {
this.map = new Map();
}
resolve(str) {
let index = this.map.get(str);
if (index === undefined) {
index = this.map.size + 1;
this.map.set(str, index);
}
return index;
}
}
function createDeclarationIndexer() {
const ids = new Index();
return function markDeclaration(node) {
const id = cssTree.generate(node);
node.id = ids.resolve(id);
node.length = id.length;
node.fingerprint = null;
return node;
};
}
module.exports = createDeclarationIndexer;