运行时AOP插桩demo测试

addBefore 前插桩 
addAfter 后插桩 
replace 替换

import util from '@ohos.util';

import util from '@ohos.util'; 
import { A } from './Test'; 
​ 
@Entry 
@Component 
struct Index { 
@State message: string = 'Hello World'; 
//"sss": B; 
build() { 
  Row() { 
    Column() { 
      Text(this.message) 
        .fontSize(50) 
        .fontWeight(FontWeight.Bold) 
        .onClick(()=>{ 
          let a:A = new A(); 
          //代码前插桩 
          //重复插桩测试 
          util.Aspect.addBefore(A, "c", false, 
            (instance: A, arg: string): void => { 
              console.log("execute before"); 
              instance.b = "dataChangedByBefore1"; 
              console.log("arg is1 " + arg); 
            } 
          ); 
          util.Aspect.addBefore(A, "c", false, 
            (instance: A, arg: string): void => { 
              console.log("execute before"); 
              instance.b = "dataChangedByBefore2"; 
              console.log("arg is2 " + arg); 
            } 
          ); 
          util.Aspect.addBefore(A, "c", false, 
            (instance: A, arg: string): void => { 
              console.log("execute before"); 
              instance.b = "dataChangedByBefore3"; 
              console.log("arg is3 " + arg); 
            } 
          ); 
          a.c("xx"); 
          console.log(a.b) 
          console.log("-----------------------") 
          //代码后插桩 
          util.Aspect.addAfter(A, "c", false, 
            (instance: A, arg: string): void => { 
              console.log("execute after"); 
              instance.b = "dataChangedByAfter1"; 
              console.log("arg is4 " + arg); 
            } 
          ); 
          a.c("xx"); 
          console.log(a.b) 
          console.log("-----------------------") 
          //替换 
          util.Aspect.replace(A, "c", false, 
            (instance: A, arg: string): void => { 
              console.log("execute replace"); 
              instance.b = "dataChangedByReplace1"; 
              console.log("arg is5 " + arg); 
            } 
          ); 
          a.c("xx") 
          console.log(a.b) 
          console.log("-----------------------") 
          //let b = getContext(); 
          //ContextTest.getInstance(getContext()); 
          //a(); 
        }) 
    } 
    .width('100%') 
  } 
  .height('100%') 
} 
} 

export class A{ 
b: string = "xx"; 
c(arg: string){ 
  console.log(this.b); 
} 
}