compat es5

doric-js/index.runtime.es5.ts

@@ -13,5 +13,46 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-export * from 'core-js'
+class ProxyPolyfill {
+    __target__: object
+    __handler__: ProxyHandler<object>
+    constructor(target: object, handler: ProxyHandler<object>) {
+        this.__target__ = target
+        this.__handler__ = handler
+        this.defineProps()
+        return target as ProxyPolyfill
+    }
+    defineProps() {
+        const keys = Object.keys(this.__target__)
+        keys.forEach(property => {
+            if (Object.getOwnPropertyDescriptor(this.__target__, property) !== undefined) {
+                return
+            }
+            Object.defineProperty(this, property, {
+                get: () => {
+                    this.defineProps()
+                    if (this.__handler__.get) {
+                        return this.__handler__.get(this.__target__, property, this)
+                    } else {
+                        return (this.__target__ as any)[property]
+                    }
+                },
+                set: (value) => {
+                    this.defineProps()
+                    if (this.__handler__.set) {
+                        this.__handler__.set(this.__target__, property, value, property)
+                    } else {
+                        (this.__target__ as any)[property] = value
+                    }
+                },
+                enumerable: true,
+                configurable: true,
+            })
+        })
+    }
+}
+const global = Function('return this')()
+global.Proxy = ProxyPolyfill
+
 export * from './src/runtime/sandbox'
+export * from 'core-js'