feat: first implementation of array addon

Author: streamich

addon/array.js

@@ -0,0 +1,33 @@
+'use strict';
+
+exports.addon = function (renderer) {
+    if (process.env.NODE_ENV !== 'production') {
+        require('./__dev__/warnOnMissingDependencies')('rule', renderer, ['put', 'decl']);
+    }
+
+    var decl = renderer.decl;
+
+    renderer.decl = function (prop, value) {
+        var result = decl(prop, value);
+
+        if (value instanceof Array) {
+            var pos = result.indexOf(':');
+
+            prop = result.substr(0, pos + 1);
+
+            result = prop + value.join(';' + prop) + ';';
+        }
+
+        return result;
+    };
+
+    var put = renderer.put;
+
+    renderer.put = function (selector, decls, atrule) {
+        if (decls instanceof Array) {
+            decls = renderer.assign.apply(null, decls);
+        }
+
+        return put(selector, decls, atrule);
+    };
+};