AsmSupport研究心得(五)

条件判断

If-then判断

/**         * If-then判断         */        @Test        public void testIfThen() {               ClassCreator creator = new ClassCreator(Opcodes.V1_5, Opcodes.ACC_PUBLIC, "generated.create.IfThen", null, null);               creator.createMethod("method1", new AClass[] {}, new String[] {}, AClass.VOID_ACLASS, null, Opcodes.ACC_PUBLIC, new CommonMethodBody() {                        @Override                      public void body(LocalVariable... argus) {                             ifthan(new IF(equal(Value.value(1), Value.value(2))) {                                    @Override                                    public void body() {                                           GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                                           invoke(systemOut, "println", Value.value("this is if test"));                                    }                             });                             runReturn();                      }               });                 creator.setClassOutPutPath(".//target//");               creator.startup();        }

 

If-then-else判断

@Test        public void testIfThenElse() {               ClassCreator creator = new ClassCreator(Opcodes.V1_5, Opcodes.ACC_PUBLIC, "generated.create.IfThenElse", null, null);               creator.createMethod("method1", new AClass[] {}, new String[] {}, AClass.VOID_ACLASS, null, Opcodes.ACC_PUBLIC, new CommonMethodBody() {                                           @Override                      public void body(LocalVariable... argus) {                             ifthan(new IF(equal(Value.value(1), Value.value(2))) {                                    @Override                                    public void body() {                                           GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                                           invoke(systemOut, "println", Value.value("this is if test"));                                           invoke(systemOut, "println", Value.value("this is if test"));                                    }                             }).elsethan(new Else() {                                                                       @Override                                    public void body() {                                           GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                                           invoke(systemOut, "println", Value.value("this is then test"));                                           invoke(systemOut, "println", Value.value("this is then test"));                                    }                             });                             runReturn();                      }               });                             creator.setClassOutPutPath(".//target//");               creator.startup();        }

 

If-then-elseif-else判断

@Test        public void testIfThenElseIfThen() {               ClassCreator creator = new ClassCreator(Opcodes.V1_5, Opcodes.ACC_PUBLIC, "generated.create.IfThenElseIfThen", null, null);               creator.createMethod("method1", new AClass[] {}, new String[] {}, AClass.VOID_ACLASS, null, Opcodes.ACC_PUBLIC, new CommonMethodBody() {                                           @Override                      public void body(LocalVariable... argus) {                             ifthan(new IF(equal(Value.value(1), Value.value(2))) {                                    @Override                                    public void body() {                                           GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                                           invoke(systemOut, "println", Value.value("this is if test"));                                           invoke(systemOut, "println", Value.value("this is if test"));                                    }                             }).elseif(new ElseIF(not(Value.value(true))) {                                                                       @Override                                    public void body() {                                           GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                                           invoke(systemOut, "println", Value.value("this is elseif test"));                                           invoke(systemOut, "println", Value.value("this is elseif test"));                                    }                             }).elsethan(new Else() {                                                                       @Override                                    public void body() {                                           GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                                           invoke(systemOut, "println", Value.value("this is then test"));                                           invoke(systemOut, "println", Value.value("this is then test"));                                    }                             });                             runReturn();                      }               });                             creator.setClassOutPutPath(".//target//");               creator.startup();        }

 

方法调用

公开成员方法

/**         * 公开成员方法         */        @Test        public void testPublicMemberMethod() {               ClassCreator creator = new ClassCreator(Opcodes.V1_5, Opcodes.ACC_PUBLIC, "generated.create.PublicMemberMethod", null, null);               creator.createMethod("method2", new AClass[] {}, new String[] {}, AClass.VOID_ACLASS, null, Opcodes.ACC_PUBLIC, new CommonMethodBody() {                                           @Override                      public void body(LocalVariable... argus) {                             GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                             LocalVariable date = createVariable(AClassFactory.getProductClass(java.util.Date.class), "date", false, invokeConstructor(AClassFactory.getProductClass(java.util.Date.class)));                             //匿名返回值                             MethodInvoker m1 = invoke(date, "getTime");                             invoke(systemOut, "println", m1);                             runReturn();                      }               });                 creator.setClassOutPutPath(".//target//");               creator.startup();        }

 

当前类成员方法

/**         * 当前类成员方法         */        @Test        public void testClassInnerMethod() {               ClassCreator creator = new ClassCreator(Opcodes.V1_5, Opcodes.ACC_PUBLIC, "generated.create.ClassInnerMethod", null, null);               creator.createMethod("method1", new AClass[] {AClass.INT_ACLASS}, new String[] {"int1"}, AClass.STRING_ACLASS, null, Opcodes.ACC_PUBLIC, new CommonMethodBody() {                        @Override                      public void body(LocalVariable... argus) {                             GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                             invoke(systemOut, "println", argus[0]);                             runReturn(Value.value("this is method1 return value"));                      }               });               creator.createMethod("method2", new AClass[] {}, new String[] {}, AClass.VOID_ACLASS, null, Opcodes.ACC_PUBLIC, new CommonMethodBody() {                                           @Override                      public void body(LocalVariable... argus) {                             GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                             //匿名返回值                             MethodInvoker m1 = invoke(getThis(), "method1",Value.value(2));                             invoke(systemOut, "println", m1);                             //具名返回值                             MethodInvoker m2 = invoke(getThis(), "method1",Value.value(2));                             LocalVariable ret = createVariable(AClass.STRING_ACLASS, "ret", false, m2);                             invoke(systemOut, "println", ret);                             runReturn();                      }               });                 creator.setClassOutPutPath(".//target//");               creator.startup();        }

 

父类成员方法

/**         * 父类内部成员方法         */        @Test        public void testParentClassInnerMethod() {               ClassCreator creator = new ClassCreator(Opcodes.V1_5, Opcodes.ACC_PUBLIC, "generated.create.ParentClassInnerMethod", Date.class, null);               creator.createMethod("getTime", new AClass[] {}, new String[] {}, AClass.LONG_ACLASS, null, Opcodes.ACC_PUBLIC, new CommonMethodBody() {                                           @Override                      public void body(LocalVariable... argus) {                             GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                             invoke(systemOut, "println", Value.value("this is a son getTime()"));                             runReturn(Value.value(1024L));                      }               });               creator.createMethod("method2", new AClass[] {}, new String[] {}, AClass.VOID_ACLASS, null, Opcodes.ACC_PUBLIC, new CommonMethodBody() {                                           @Override                      public void body(LocalVariable... argus) {                             GlobalVariable systemOut = AClassFactory.getProductClass(System.class).getGlobalVariable("out");                                                         invoke(systemOut, "println", invoke(getThis(), "getTime"));                                                         invoke(systemOut, "println", invoke(getSuper(), "getTime"));                             runReturn();                      }               });                             creator.setClassOutPutPath(".//target//");               creator.startup();        }

 

公开静态方法

已经在第一季举过例

当前类静态方法 

已经在第一季举过例

父类静态方法

已经在第一季举过例

构造方法

已经在第一季举过例

静态代码块

已经在第一季举过例