Examples of org.kohsuke.asm3.MethodVisitor.visitVarInsn()

org.kohsuke.asm3.MethodVisitor.visitVarInsn()

  protected void makeProxyConstructor() {
    MethodVisitor mv = wd.dest.visitMethod(AsmUtil.ACC_PRIVATE | AsmUtil.ACC_FINAL, initMethodName, DESC_VOID, null, null);
    mv.visitCode();
    if (wd.adviceInits != null) {
      for (String name : wd.adviceInits) {
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, wd.thisReference, name, DESC_VOID);
      }
    }
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);

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                      // PROXY
                      loadSpecialMethodArguments(mv, td.msign);
                      mv.visitMethodInsn(INVOKESPECIAL, wd.superReference, td.msign.getMethodName(), td.msign.getDescription());
                    } else {
                      // WRAPPER
                      mv.visitVarInsn(ALOAD, 0);
                      mv.visitFieldInsn(GETFIELD, wd.thisReference, wd.wrapperRef, wd.wrapperType);
                      loadVirtualMethodArguments(mv, td.msign);
                      if (wd.wrapInterface) {
                        mv.visitMethodInsn(INVOKEINTERFACE, wd.wrapperType.substring(1, wd.wrapperType.length() - 1), td.msign.getMethodName(), td.msign.getDescription());
                      } else {

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                  ProxyTargetReplacement.createArgumentsClassArray(mv, td.msign);
                  return;
                } else


                if (isTargetMethod(mname, mdesc)) {       // [R9.1]
                  mv.visitVarInsn(ALOAD, 0);
                  return;
                } else


                if (isTargetClassMethod(mname, mdesc)) {       // [R9]
                  ProxyTargetReplacement.targetClass(mv, td.msign);

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        // fill method body
        mv.visitCode();


        // load the contextual instance Provider
        mv.visitVarInsn(Opcodes.ALOAD, 0);
        mv.visitFieldInsn(Opcodes.GETFIELD, proxyClassFileName, FIELD_INSTANCE_PROVIDER, Type.getDescriptor(Provider.class));


        mv.visitInsn(Opcodes.ARETURN);


        mv.visitMaxs(-1, -1);

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            }


            final String descriptor = Type.getConstructorDescriptor(superDefaultCt);
            final MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", descriptor, null, null);
            mv.visitCode();
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, parentClassFileName, "<init>", descriptor);


            // the instance provider field
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitInsn(Opcodes.ACONST_NULL);

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            mv.visitCode();
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitMethodInsn(Opcodes.INVOKESPECIAL, parentClassFileName, "<init>", descriptor);


            // the instance provider field
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitInsn(Opcodes.ACONST_NULL);
            mv.visitFieldInsn(Opcodes.PUTFIELD, proxyClassFileName, FIELD_INSTANCE_PROVIDER, Type.getDescriptor(Provider.class));


            mv.visitInsn(Opcodes.RETURN);
            mv.visitMaxs(-1, -1);

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            // fill method body
            mv.visitCode();


            // load the contextual instance Provider
            mv.visitVarInsn(Opcodes.ALOAD, 0);
            mv.visitFieldInsn(Opcodes.GETFIELD, proxyClassFileName, FIELD_INSTANCE_PROVIDER, Type.getDescriptor(Provider.class));


            // invoke the get() method on the Provider
            mv.visitMethodInsn(Opcodes.INVOKEINTERFACE, Type.getInternalName(Provider.class), "get", "()Ljava/lang/Object;");

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            // now calculate the parameters
            int offset = 1;
            for (Class<?> aClass : delegatedMethod.getParameterTypes())
            {
                final Type type = Type.getType(aClass);
                mv.visitVarInsn(type.getOpcode(Opcodes.ILOAD), offset);
                offset += type.getSize();
            }


            // and finally invoke the target method on the provided Contextual Instance
            final Type declaringClass = Type.getType(delegatedMethod.getDeclaringClass());

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        MethodVisitor mv = cw.visitMethod(modifier, method.getName(), Type.getMethodDescriptor(method), null, null);
        mv.visitCode();




        mv.visitVarInsn(Opcodes.ALOAD, 0);


        // add the Method from the static array as first parameter
        mv.visitFieldInsn(Opcodes.GETSTATIC, proxyClassFileName, FIELD_PROTECTED_METHODS, Type.getDescriptor(Method[].class));


        // push the methodIndex of the current method

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        // invoke getMethod() with the method name and the array of types
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getDeclaredMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;", false);


        // store the returned method for later
        mv.visitVarInsn(ASTORE, length);


        // the following code generates bytecode equivalent to:
        // return ((<returntype>) invocationHandler.invoke(this, method, new Object[] { <function arguments }))[.<primitive>Value()];


        final Label l4 = new Label();

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