新增columns的配置

packages/demo/public/assets.json

@@ -189,7 +189,21 @@
         },
         {
           "name": "columns",
-          "propType": "array"
+          "propType": {
+            "type": "arrayOf",
+            "value": {
+              "type": "shape",
+              "value": [{
+                "name": "title",
+                "description": "列标题",
+                "propType": "string"
+              },{
+                "name": "dataIndex",
+                "description": "列名称",
+                "propType": "string"
+              }]
+            }
+          }
         },
         {
           "name": "emptyContent",

packages/editor-skeleton/src/transducers/parse-props.ts

@@ -92,7 +92,7 @@ function propTypeToSetter(propType: PropType): SetterType {
       };
     case 'shape':
     case 'exact':
-      const items = (propType as Shape).value.map((item) => propConfigToFieldConfig(item));
+      const items = ((propType as any).value || []).map((item: any) => propConfigToFieldConfig(item));
       return {
         componentName: 'ObjectSetter',
         props: {
@@ -242,7 +242,6 @@ export default function(metadata: TransformedComponentMetadata): TransformedComp
 
     // 存在覆盖配置时
     if (extendsProps) {
-      debugger;
       if (name in extendsProps) {
         prop = extendsProps[name];
       }