feat: implement hyperstyle() interface

Author: streamich

addon/hyperstyle.js

@@ -0,0 +1,27 @@
+'use strict';
+
+exports.addon = function (renderer) {
+    if (process.env.NODE_ENV !== 'production') {
+        require('./__dev__/warnOnMissingDependencies')('hyperstyle', renderer, ['sheet']);
+    }
+
+    renderer.hyperstyle = function (map, block) {
+        var styles = renderer.sheet(map, block);
+
+        return function (type, props) {
+            if (props) {
+                var styleName = props.styleName;
+
+                if (styleName) {
+                    var className = styles[styleName];
+
+                    if (className) {
+                        props.className = (props.className || '') + className;
+                    }
+                }
+            }
+
+            return renderer.h.apply(null, arguments);
+        };
+    };
+};