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

org.ow2.asm.MethodVisitor.visitInsn()
Visits a zero operand instruction. @param opcode the opcode of the instruction to be visited. This opcode iseither 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.

        mv.visitMaxs(0, 0);
        mv.visitEnd();
        mv = cw.visitMethod(0, "dreturnInsn", "()D", null, null);
        mv.visitCode();
        mv.visitInsn(DCONST_0);
        mv.visitInsn(DRETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }


    private void fieldInsns(final ClassWriter cw) {

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    public void testIllegalMethodInsn() {
        MethodVisitor mv = new CheckMethodAdapter(new EmptyVisitor());
        mv.visitCode();
        try {
            mv.visitInsn(-1);
            fail();
        } catch (Exception e) {
        }
    }

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        mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "i", "I");
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, "pkg/Insns", "l", "J");
        mv.visitFieldInsn(PUTFIELD, "pkg/Insns", "l", "J");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }


    private void methodInsns(final ClassWriter cw) {

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        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEVIRTUAL, "pkg/Insns", "freturn", "()F");
        // invokeinterface
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "size", "()I");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }


    private void monitorInsns(final ClassWriter cw) {

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                "monitorInsns",
                "()V",
                null,
                null);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITORENTER);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITOREXIT);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

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                null,
                null);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITORENTER);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITOREXIT);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }

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                null);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITORENTER);
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(MONITOREXIT);
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }


    private void varargMethod(final ClassWriter cw) {

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                "varargMethod",
                "([Ljava/lang/Object;)V",
                "([Ljava/lang/Object;)V^TF;",
                new String[] { "java/lang/Exception" });
        mv.visitCode();
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }


    private void bridgeMethod(final ClassWriter cw) {

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        mv.visitMethodInsn(INVOKESPECIAL,
                "java/util/ArrayList",
                "get",
                "(I)Ljava/lang/Object;");
        mv.visitTypeInsn(CHECKCAST, "java/lang/String");
        mv.visitInsn(ARETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();


        mv = cw.visitMethod(ACC_PUBLIC + ACC_BRIDGE + ACC_SYNTHETIC,
                "get",

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        mv.visitVarInsn(ILOAD, 1);
        mv.visitMethodInsn(INVOKEVIRTUAL,
                "pkg/Insns",
                "get",
                "(I)Ljava/lang/String;");
        mv.visitInsn(ARETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }


    private void nativeMethod(final ClassWriter cw) {

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