feat: add basic pipe addon

Author: streamich

addon/pipe.js

@@ -0,0 +1,32 @@
+'use strict';
+
+var addonCssom = require('./cssom').addon;
+
+exports.addon = function (renderer) {
+    if (!renderer.putRule) {
+        addonCssom(renderer);
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+        require('./__dev__/warnOnMissingDependencies')('pipe', renderer, ['putRule']);
+    }
+
+    renderer.pipe = function (initialDecls) {
+        var className = 'a';
+        var rule = renderer.putRule('.' + className);
+
+        for (var prop in initialDecls) {
+            rule.style.setProperty(prop, initialDecls[prop]);
+        }
+
+        var closure = function (decls) {
+            for (var prop in decls) {
+                rule.style.setProperty(prop, decls[prop]);
+            }
+
+            return ' ' + className;
+        };
+
+        return closure;
+    };
+};