[improvement] functional inherit context (#2716)

2019-02-11 20:46:46 +08:00
parent 9947ab00e8
commit 0bf4a9e799
9 changed files with 104 additions and 85 deletions
@@ -0,0 +1,33 @@
+import { RenderContext, VNodeData } from 'vue';
+
+type ObjectIndex = {
+  [key: string]: any;
+};
+
+type Context = RenderContext & { data: VNodeData & ObjectIndex };
+
+type InheritContext = Partial<VNodeData> & ObjectIndex;
+
+const inheritKey = [
+  'style',
+  'class',
+  'attrs',
+  'nativeOn',
+  'directives',
+  'staticClass',
+  'staticStyle'
+];
+
+const mapInheritKey: ObjectIndex = { nativeOn: 'on' };
+
+export function inheritContext(context: Context): InheritContext {
+  return inheritKey.reduce(
+    (obj, key) => {
+      if (context.data[key]) {
+        obj[mapInheritKey[key] || key] = context.data[key];
+      }
+      return obj;
+    },
+    {} as InheritContext
+  );
+}