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

Class com.alibaba.fastjson.asm.MethodVisitor

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

com.alibaba.fastjson.asm.MethodVisitor.visitInsn()
Visits a zero operand instruction. @param opcode the opcode of the instruction to be visited. This opcode is either NOP, ACONST_NULL, ICONST_M1,ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1, FCONST_2, DCONST_0, DCONST_1, IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD, IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE, POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, INEG, LNEG, FNEG, DNEG, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S, LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, RETURN, ARRAYLENGTH, ATHROW, MONITORENTER, or MONITOREXIT.


                    mw.visitVarInsn(ALOAD, context.var("lexer"));
                    mw.visitMethodInsn(INVOKEVIRTUAL, getType(JSONLexer.class), "stringDefaultValue",
                                       "()Ljava/lang/String;");
                } else {
                    mw.visitInsn(ACONST_NULL);
                }


                mw.visitTypeInsn(CHECKCAST, getType(fieldClass)); // cast
                mw.visitVarInsn(ASTORE, context.var(fieldInfo.getName() + "_asm"));
            }

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            }


            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, 2);
                mw.visitVarInsn(ALOAD, 3);
                mw.visitVarInsn(ALOAD, context.paramFieldType());
                mw.visitMethodInsn(INVOKEVIRTUAL, className, "write1",
                                   "(Lcom/alibaba/fastjson/serializer/JSONSerializer;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/reflect/Type;)V");
                mw.visitInsn(RETURN);


                mw.visitLabel(_else);
            }


            mw.visitVarInsn(ALOAD, context.obj()); // obj

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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.visitTypeInsn(CHECKCAST, getType(clazz)); // serializer
            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(INVOKEVIRTUAL, getType(DefaultJSONParser.class), "getContext",
                           "()Lcom/alibaba/fastjson/parser/ParseContext;");
        mw.visitVarInsn(ASTORE, context.var("mark_context"));


        // ParseContext context = parser.getContext();
        mw.visitInsn(ICONST_0);
        mw.visitVarInsn(ISTORE, context.var("matchedCount"));


        Constructor<?> defaultConstructor = context.getBeanInfo().getDefaultConstructor();


        // create instance

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        Constructor<?> defaultConstructor = context.getBeanInfo().getDefaultConstructor();


        // create instance
        if (Modifier.isPublic(defaultConstructor.getModifiers())) {
            mw.visitTypeInsn(NEW, getType(context.getClazz()));
            mw.visitInsn(DUP);
            mw.visitMethodInsn(INVOKESPECIAL, getType(context.getClazz()), "<init>", "()V");


            mw.visitVarInsn(ASTORE, context.var("instance"));
        } else {
            mw.visitVarInsn(ALOAD, 0);

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        mw.visitVarInsn(ALOAD, context.var("lexer"));
        mw.visitFieldInsn(GETFIELD, getType(JSONLexer.class), "matchStat", "I");
        mw.visitFieldInsn(GETSTATIC, getType(JSONLexer.class), "END", "I");
        mw.visitJumpInsn(IF_ICMPEQ, return_);


        mw.visitInsn(ICONST_0); // UNKOWN
        mw.visitIntInsn(ISTORE, context.var("matchStat"));


        int fieldListSize = context.getFieldInfoList().size();
        for (int i = 0; i < fieldListSize; i += 32) {
            mw.visitInsn(ICONST_0);

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        mw.visitInsn(ICONST_0); // UNKOWN
        mw.visitIntInsn(ISTORE, context.var("matchStat"));


        int fieldListSize = context.getFieldInfoList().size();
        for (int i = 0; i < fieldListSize; i += 32) {
            mw.visitInsn(ICONST_0);
            mw.visitVarInsn(ISTORE, context.var("_asm_flag_" + (i / 32)));
        }


        // declare and init
        for (int i = 0; i < fieldListSize; ++i) {

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            if (fieldClass == boolean.class //
                || fieldClass == byte.class //
                || fieldClass == short.class //
                || fieldClass == int.class) {
                mw.visitInsn(ICONST_0);
                mw.visitVarInsn(ISTORE, context.var(fieldInfo.getName() + "_asm"));
            } else if (fieldClass == long.class) {
                mw.visitInsn(LCONST_0);
                mw.visitVarInsn(LSTORE, context.var(fieldInfo.getName() + "_asm", 2));
            } else if (fieldClass == float.class) {

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