first commit

build/node_modules/clean-css/lib/optimizer/level-2/clone.js

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+var wrapSingle = require('../wrap-for-optimizing').single;
+
+var Token = require('../../tokenizer/token');
+
+function deep(property) {
+  var cloned = shallow(property);
+  for (var i = property.components.length - 1; i >= 0; i--) {
+    var component = shallow(property.components[i]);
+    component.value = property.components[i].value.slice(0);
+    cloned.components.unshift(component);
+  }
+
+  cloned.dirty = true;
+  cloned.value = property.value.slice(0);
+
+  return cloned;
+}
+
+function shallow(property) {
+  var cloned = wrapSingle([
+    Token.PROPERTY,
+    [Token.PROPERTY_NAME, property.name]
+  ]);
+  cloned.important = property.important;
+  cloned.hack = property.hack;
+  cloned.unused = false;
+  return cloned;
+}
+
+module.exports = {
+  deep: deep,
+  shallow: shallow
+};