|
|
@@ -0,0 +1,37 @@
|
|
|
+/**
|
|
|
+ * Copyright (c) 2011-2019, James Zhan 詹波 (jfinal@126.com).
|
|
|
+ *
|
|
|
+ * Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
+ * you may not use this file except in compliance with the License.
|
|
|
+ * You may obtain a copy of the License at
|
|
|
+ *
|
|
|
+ * http://www.apache.org/licenses/LICENSE-2.0
|
|
|
+ *
|
|
|
+ * Unless required by applicable law or agreed to in writing, software
|
|
|
+ * distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
+ * See the License for the specific language governing permissions and
|
|
|
+ * limitations under the License.
|
|
|
+ */
|
|
|
+
|
|
|
+package com.jfinal.template.expr.ast;
|
|
|
+
|
|
|
+/**
|
|
|
+ * NullMethodInfo
|
|
|
+ *
|
|
|
+ * 1：MethodKit.getMethod(...) 消除 instanceof 判断
|
|
|
+ * 2：Method.exec(...) 消除 null 值判断
|
|
|
+ */
|
|
|
+public class NullMethodInfo extends MethodInfo {
|
|
|
+
|
|
|
+ public static final NullMethodInfo me = new NullMethodInfo();
|
|
|
+
|
|
|
+ public boolean notNull() {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ public Object invoke(Object target, Object... args) throws ReflectiveOperationException {
|
|
|
+ throw new RuntimeException("The method invoke(Object, Object...) of NullMethodInfo should not be invoked");
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
James