spring-loaded FalseReturner 源码
spring-loaded FalseReturner 代码
文件路径：/springloaded/src/main/java/org/springsource/loaded/agent/FalseReturner.java
/*
* Copyright 2010-2012 VMware and contributors
*
* 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
*
* https://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 org.springsource.loaded.agent;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.MethodVisitor;
import org.springsource.loaded.Constants;
/**
*
* @author Andy Clement
* @since 0.7.0
*/
public class FalseReturner extends ClassVisitor implements Constants {
private String methodname;
public FalseReturner(String methodname) {
super(ASM5, new ClassWriter(0)); // TODO review 0 here
this.methodname = methodname;
}
public byte[] getBytes() {
return ((ClassWriter) cv).toByteArray();
}
// @Override
// public FieldVisitor visitField(int access, String name, String desc, String signature, Object value) {
// if (name.equals(methodname)) {
// return super.visitField(access & (~Modifier.FINAL), name, desc, signature, value);
// } else {
// return super.visitField(access, name, desc, signature, value);
// }
// }
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
if (name.equals(methodname)) {
// return new FakeMethodVisitor();
MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
mv.visitCode();
mv.visitInsn(ICONST_0);
mv.visitInsn(IRETURN);
mv.visitMaxs(3, 1);
mv.visitEnd();
return mv;
// return new FalseReturnerMV(mv);
}
else {
return super.visitMethod(access, name, desc, signature, exceptions);
}
}
public boolean m() {
return false;
}
// class FakeMethodVisitor implements MethodVisitor, Constants {
//
// }
}
相关信息
相关文章
spring-loaded CglibPluginCapturing 源码
spring-loaded ClassPreProcessorAgentAdapter 源码
spring-loaded ClassVisitingConstructorAppender 源码
spring-loaded FileSystemWatcher 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦