Examples of org.ow2.asm.MethodVisitor.visitLdcInsn()

org.ow2.asm.MethodVisitor.visitLdcInsn()
} else if (cst instanceof Float) { // ... } else if (cst instanceof Long) { // ... } else if (cst instanceof Double) { // ... } else if (cst instanceof String) { // ... } else if (cst instanceof Type) { int sort = ((Type) cst).getSort(); if (sort == Type.OBJECT) { // ... } else if (sort == Type.ARRAY) { // ... } else if (sort == Type.METHOD) { // ... } else { // throw an exception } } else if (cst instanceof Handle) { // ... } else { // throw an exception } @param cst the constant to be loaded on the stack. This parameter must bea non null {@link Integer}, a {@link Float}, a {@link Long}, a {@link Double}, a {@link String}, a {@link Type} of OBJECT or ARRAYsort for .class constants, for classes whose version is 49.0, a {@link Type} of METHOD sort or a {@link Handle} forMethodType and MethodHandle constants, for classes whose version is 51.0.

            mv.visitLabel(tryLabel);


            // call a method on the bean class
            mv.visitLdcInsn(this.beanClassType);
            // name of the method which is searched
            mv.visitLdcInsn(this.jMethod.getName());




            // build an array of java.lang.Class with the size of args of the method
            mv.visitIntInsn(BIPUSH, this.methodArgsType.length);
            mv.visitTypeInsn(ANEWARRAY, "java/lang/Class");

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            Label firstCatchLabel = new Label();
            mv.visitLabel(firstCatchLabel);
            mv.visitVarInsn(ASTORE, 1);
            mv.visitTypeInsn(NEW, "java/lang/RuntimeException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Cannot find method due to a security exception");
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/RuntimeException", "<init>",
                    "(Ljava/lang/String;Ljava/lang/Throwable;)V");
            mv.visitInsn(ATHROW);

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            Label secondCatchLabel = new Label();
            mv.visitLabel(secondCatchLabel);
            mv.visitVarInsn(ASTORE, 1);
            mv.visitTypeInsn(NEW, "java/lang/RuntimeException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Cannot find the method");
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/RuntimeException", "<init>",
                    "(Ljava/lang/String;Ljava/lang/Throwable;)V");
            mv.visitInsn(ATHROW);

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        // default case
        mv.visitLabel(defaultCaseLabel);
        mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
        mv.visitInsn(DUP);
        mv.visitLdcInsn("Problem in interceptors. Shouldn't go in the default case.");
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
        mv.visitInsn(ATHROW);


        // end
        mv.visitMaxs(0, 0);

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            mv.visitFieldInsn(GETFIELD, this.generatedClassName, "parameters", ARRAY_OBJECTS);
        } else {
            // throw Exception
            mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Operation getParameters can only be applied on AroundInvoke interceptors");
            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
            mv.visitInsn(ATHROW);
        }


        // return

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        mv.visitEnd();


        // hello method
        mv = cw.visitMethod(ACC_PUBLIC, "hello", "()Ljava/lang/String;", null, null);
        mv.visitCode();
        mv.visitLdcInsn(helloWorldString);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();


        cw.visitEnd();

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            mv.visitVarInsn(ALOAD, 1);
            Label notNull = new Label();
            mv.visitJumpInsn(IFNONNULL, notNull);
            mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Cannot set a null array.");
            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
            mv.visitInsn(ATHROW);
            mv.visitLabel(notNull);


            /**

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            mv.visitIntInsn(BIPUSH, this.methodArgsType.length);
            Label sizeOk = new Label();
            mv.visitJumpInsn(IF_ICMPEQ, sizeOk);
            mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Invalid size of the given array. The length should be '" + this.methodArgsType.length + "'.");
            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
            mv.visitInsn(ATHROW);
            mv.visitLabel(sizeOk);


            // this.parameters = parameters

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            }
        } else {
            // throw Exception
            mv.visitTypeInsn(NEW, "java/lang/IllegalStateException");
            mv.visitInsn(DUP);
            mv.visitLdcInsn("Operation setParameters can only be applied on AroundInvoke interceptors");
            mv.visitMethodInsn(INVOKESPECIAL, "java/lang/IllegalStateException", "<init>", "(Ljava/lang/String;)V");
            mv.visitInsn(ATHROW);
        }


        mv.visitInsn(RETURN);

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        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "()V");
        mv.visitVarInsn(ASTORE, varSB);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Object", "getClass", "()Ljava/lang/Class;");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getName", "()Ljava/lang/String;");
        mv.visitLdcInsn("\\.");
        mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "split", "(Ljava/lang/String;)[Ljava/lang/String;");
        mv.visitVarInsn(ASTORE, varCLASSNAMES);
        mv.visitVarInsn(ALOAD, varCLASSNAMES);
        mv.visitVarInsn(ALOAD, varCLASSNAMES);
        mv.visitInsn(ARRAYLENGTH);

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