Examples of com.alibaba.fastjson.asm.MethodVisitor.visitMaxs()

Class com.alibaba.fastjson.asm.MethodVisitor

Examples of com.alibaba.fastjson.asm.MethodVisitor.visitMaxs()

com.alibaba.fastjson.asm.MethodVisitor.visitMaxs()
Visits the maximum stack size and the maximum number of local variables of the method. @param maxStack maximum stack size of the method. @param maxLocals maximum number of local variables for the method.


            mw.visitFieldInsn(PUTFIELD, className, fieldInfo.getName() + "_asm_fieldType", "Ljava/lang/reflect/Type;");
        }


        mw.visitInsn(RETURN);
        mw.visitMaxs(4, 4);
        mw.visitEnd();


        {
            Context context = new Context(className);

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            mw.visitVarInsn(ALOAD, context.obj()); // obj
            mw.visitTypeInsn(CHECKCAST, getType(clazz)); // serializer
            mw.visitVarInsn(ASTORE, context.var("entity")); // obj
            generateWriteMethod(clazz, mw, getters, context);
            mw.visitInsn(RETURN);
            mw.visitMaxs(5, context.getVariantCount() + 1);
            mw.visitEnd();
        }


        List<FieldInfo> sortedGetters = TypeUtils.computeGetters(clazz, aliasMap, true);
        {

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            mw.visitVarInsn(ASTORE, context.var("entity")); // obj


            generateWriteMethod(clazz, mw, sortedGetters, context);


            mw.visitInsn(RETURN);
            mw.visitMaxs(5, context.getVariantCount() + 1);
            mw.visitEnd();
        }


        byte[] code = cw.toByteArray();
        //

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        mw.visitMethodInsn(INVOKESPECIAL, getType(ASMJavaBeanDeserializer.class), "deserialze",
                           "(" + getDesc(DefaultJSONParser.class) + getDesc(Type.class)
                                   + "Ljava/lang/Object;)Ljava/lang/Object;");
        mw.visitInsn(ARETURN);


        mw.visitMaxs(5, context.getVariantCount());
        mw.visitEnd();
    }


    private void _batchSet(Context context, MethodVisitor mw) {
        for (int i = 0, size = context.getFieldInfoList().size(); i < size; ++i) {

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            mw.visitMethodInsn(INVOKESPECIAL, getType(superClass), "<init>", "(" + getDesc(ParserConfig.class)
                                                                             + getDesc(Class.class)
                                                                             + getDesc(FieldInfo.class) + ")V");


            mw.visitInsn(RETURN);
            mw.visitMaxs(4, 6);
            mw.visitEnd();
        }


        if (method != null) {
            if (fieldClass == int.class) {

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                mw.visitVarInsn(ILOAD, 2);
                mw.visitMethodInsn(INVAKE_TYPE, getType(method.getDeclaringClass()), method.getName(),
                                   ASMUtils.getDesc(method));


                mw.visitInsn(RETURN);
                mw.visitMaxs(3, 3);
                mw.visitEnd();
            } else if (fieldClass == long.class) {
                MethodVisitor mw = cw.visitMethod(ACC_PUBLIC, "setValue", "(" + getDesc(Object.class) + "J)V", null,
                                                  null);
                mw.visitVarInsn(ALOAD, 1);

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                mw.visitVarInsn(LLOAD, 2);
                mw.visitMethodInsn(INVAKE_TYPE, getType(method.getDeclaringClass()), method.getName(),
                                   ASMUtils.getDesc(method));


                mw.visitInsn(RETURN);
                mw.visitMaxs(3, 4);
                mw.visitEnd();
            } else {
                // public void setValue(Object object, Object value)
                MethodVisitor mw = cw.visitMethod(ACC_PUBLIC, "setValue", "(" + getDesc(Object.class)
                                                                          + getDesc(Object.class) + ")V", null, null);

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                mw.visitTypeInsn(CHECKCAST, getType(fieldClass)); // cast
                mw.visitMethodInsn(INVAKE_TYPE, getType(method.getDeclaringClass()), method.getName(),
                                   ASMUtils.getDesc(method));


                mw.visitInsn(RETURN);
                mw.visitMaxs(3, 3);
                mw.visitEnd();
            }
        }


        byte[] code = cw.toByteArray();

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            mw.visitFieldInsn(PUTFIELD, context.getClassName(), fieldInfo.getName() + "_asm_prefix__", "[C");


        }


        mw.visitInsn(RETURN);
        mw.visitMaxs(4, 4);
        mw.visitEnd();
    }


    private void _createInstance(ClassWriter cw, Context context) {
        MethodVisitor mw = cw.visitMethod(ACC_PUBLIC, "createInstance", "(" + getDesc(DefaultJSONParser.class)

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        mw.visitTypeInsn(NEW, getType(context.getClazz()));
        mw.visitInsn(DUP);
        mw.visitMethodInsn(INVOKESPECIAL, getType(context.getClazz()), "<init>", "()V");


        mw.visitInsn(ARETURN);
        mw.visitMaxs(3, 3);
        mw.visitEnd();
    }


}

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