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1 files changed, 32 insertions, 0 deletions

diff --git a/node_modules/csso/lib/compressor/restructure/prepare/createDeclarationIndexer.js b/node_modules/csso/lib/compressor/restructure/prepare/createDeclarationIndexer.js
new file mode 100644
index 00000000..c5235309
--- /dev/null
+++ b/node_modules/csso/lib/compressor/restructure/prepare/createDeclarationIndexer.js
@@ -0,0 +1,32 @@
+var translate = require('../../../utils/translate.js');
+
+function Index() {
+    this.seed = 0;
+    this.map = Object.create(null);
+}
+
+Index.prototype.resolve = function(str) {
+    var index = this.map[str];
+
+    if (!index) {
+        index = ++this.seed;
+        this.map[str] = index;
+    }
+
+    return index;
+};
+
+module.exports = function createDeclarationIndexer() {
+    var names = new Index();
+    var values = new Index();
+
+    return function markDeclaration(node) {
+        var property = node.property.name;
+        var value = translate(node.value);
+
+        node.id = names.resolve(property) + (values.resolve(value) << 12);
+        node.length = property.length + 1 + value.length;
+
+        return node;
+    };
+};