Beispiel #1
0
        private static int convert(ClassWriter cw, int nInput, Object[] input, int[] output)
        {
            int i = 0;

            for (int j = 0; j < nInput; ++j)
            {
                if (input[j] is int)
                {
                    output[i++] = BASE | (int)input[j];
                    if (input[j] == Opcodes.LONG || input[j] == Opcodes.DOUBLE)
                    {
                        output[i++] = TOP;
                    }
                }
                else if (input[j] is String)
                {
                    output[i++] = type(cw, Type.getObjectType((String)input[j]).getDescriptor());
                }
                else
                {
                    output[i++] = UNINITIALIZED | cw.addUninitializedType("", ((Label)input[j]).position);
                }
            }
            return(i);
        }
Beispiel #2
0
        internal virtual void execute(int opcode, int arg, ClassWriter cw, Item item)
        {
            int t1, t2, t3, t4;

            switch (opcode)
            {
            case Opcodes.NOP:
            case Opcodes.INEG:
            case Opcodes.LNEG:
            case Opcodes.FNEG:
            case Opcodes.DNEG:
            case Opcodes.I2B:
            case Opcodes.I2C:
            case Opcodes.I2S:
            case Opcodes.GOTO:
            case Opcodes.RETURN:
                break;

            case Opcodes.ACONST_NULL:
                push(NULL);
                break;

            case Opcodes.ICONST_M1:
            case Opcodes.ICONST_0:
            case Opcodes.ICONST_1:
            case Opcodes.ICONST_2:
            case Opcodes.ICONST_3:
            case Opcodes.ICONST_4:
            case Opcodes.ICONST_5:
            case Opcodes.BIPUSH:
            case Opcodes.SIPUSH:
            case Opcodes.ILOAD:
                push(INTEGER);
                break;

            case Opcodes.LCONST_0:
            case Opcodes.LCONST_1:
            case Opcodes.LLOAD:
                push(LONG);
                push(TOP);
                break;

            case Opcodes.FCONST_0:
            case Opcodes.FCONST_1:
            case Opcodes.FCONST_2:
            case Opcodes.FLOAD:
                push(FLOAT);
                break;

            case Opcodes.DCONST_0:
            case Opcodes.DCONST_1:
            case Opcodes.DLOAD:
                push(DOUBLE);
                push(TOP);
                break;

            case Opcodes.LDC:
                switch (item.type)
                {
                case ClassWriter.INT:
                    push(INTEGER);
                    break;

                case ClassWriter.LONG:
                    push(LONG);
                    push(TOP);
                    break;

                case ClassWriter.FLOAT:
                    push(FLOAT);
                    break;

                case ClassWriter.DOUBLE:
                    push(DOUBLE);
                    push(TOP);
                    break;

                case ClassWriter.CLASS:
                    push(OBJECT | cw.addType("java/lang/Class"));
                    break;

                case ClassWriter.STR:
                    push(OBJECT | cw.addType("java/lang/String"));
                    break;

                case ClassWriter.MTYPE:
                    push(OBJECT | cw.addType("java/lang/invoke/MethodType"));
                    break;

                default:
                    push(OBJECT | cw.addType("java/lang/invoke/MethodHandle"));
                    break;
                }
                break;

            case Opcodes.ALOAD:
                push(get(arg));
                break;

            case Opcodes.IALOAD:
            case Opcodes.BALOAD:
            case Opcodes.CALOAD:
            case Opcodes.SALOAD:
                pop(2);
                push(INTEGER);
                break;

            case Opcodes.LALOAD:
            case Opcodes.D2L:
                pop(2);
                push(LONG);
                push(TOP);
                break;

            case Opcodes.FALOAD:
                pop(2);
                push(FLOAT);
                break;

            case Opcodes.DALOAD:
            case Opcodes.L2D:
                pop(2);
                push(DOUBLE);
                push(TOP);
                break;

            case Opcodes.AALOAD:
                pop(1);
                t1 = pop();
                push(ELEMENT_OF + t1);
                break;

            case Opcodes.ISTORE:
            case Opcodes.FSTORE:
            case Opcodes.ASTORE:
                t1 = pop();
                set(arg, t1);
                if (arg > 0)
                {
                    t2 = get(arg - 1);
                    if (t2 == LONG || t2 == DOUBLE)
                    {
                        set(arg - 1, TOP);
                    }
                    else if ((t2 & KIND) != BASE)
                    {
                        set(arg - 1, t2 | TOP_IF_LONG_OR_DOUBLE);
                    }
                }
                break;

            case Opcodes.LSTORE:
            case Opcodes.DSTORE:
                pop(1);
                t1 = pop();
                set(arg, t1);
                set(arg + 1, TOP);
                if (arg > 0)
                {
                    t2 = get(arg - 1);
                    if (t2 == LONG || t2 == DOUBLE)
                    {
                        set(arg - 1, TOP);
                    }
                    else if ((t2 & KIND) != BASE)
                    {
                        set(arg - 1, t2 | TOP_IF_LONG_OR_DOUBLE);
                    }
                }
                break;

            case Opcodes.IASTORE:
            case Opcodes.BASTORE:
            case Opcodes.CASTORE:
            case Opcodes.SASTORE:
            case Opcodes.FASTORE:
            case Opcodes.AASTORE:
                pop(3);
                break;

            case Opcodes.LASTORE:
            case Opcodes.DASTORE:
                pop(4);
                break;

            case Opcodes.POP:
            case Opcodes.IFEQ:
            case Opcodes.IFNE:
            case Opcodes.IFLT:
            case Opcodes.IFGE:
            case Opcodes.IFGT:
            case Opcodes.IFLE:
            case Opcodes.IRETURN:
            case Opcodes.FRETURN:
            case Opcodes.ARETURN:
            case Opcodes.TABLESWITCH:
            case Opcodes.LOOKUPSWITCH:
            case Opcodes.ATHROW:
            case Opcodes.MONITORENTER:
            case Opcodes.MONITOREXIT:
            case Opcodes.IFNULL:
            case Opcodes.IFNONNULL:
                pop(1);
                break;

            case Opcodes.POP2:
            case Opcodes.IF_ICMPEQ:
            case Opcodes.IF_ICMPNE:
            case Opcodes.IF_ICMPLT:
            case Opcodes.IF_ICMPGE:
            case Opcodes.IF_ICMPGT:
            case Opcodes.IF_ICMPLE:
            case Opcodes.IF_ACMPEQ:
            case Opcodes.IF_ACMPNE:
            case Opcodes.LRETURN:
            case Opcodes.DRETURN:
                pop(2);
                break;

            case Opcodes.DUP:
                t1 = pop();
                push(t1);
                push(t1);
                break;

            case Opcodes.DUP_X1:
                t1 = pop();
                t2 = pop();
                push(t1);
                push(t2);
                push(t1);
                break;

            case Opcodes.DUP_X2:
                t1 = pop();
                t2 = pop();
                t3 = pop();
                push(t1);
                push(t3);
                push(t2);
                push(t1);
                break;

            case Opcodes.DUP2:
                t1 = pop();
                t2 = pop();
                push(t2);
                push(t1);
                push(t2);
                push(t1);
                break;

            case Opcodes.DUP2_X1:
                t1 = pop();
                t2 = pop();
                t3 = pop();
                push(t2);
                push(t1);
                push(t3);
                push(t2);
                push(t1);
                break;

            case Opcodes.DUP2_X2:
                t1 = pop();
                t2 = pop();
                t3 = pop();
                t4 = pop();
                push(t2);
                push(t1);
                push(t4);
                push(t3);
                push(t2);
                push(t1);
                break;

            case Opcodes.SWAP:
                t1 = pop();
                t2 = pop();
                push(t1);
                push(t2);
                break;

            case Opcodes.IADD:
            case Opcodes.ISUB:
            case Opcodes.IMUL:
            case Opcodes.IDIV:
            case Opcodes.IREM:
            case Opcodes.IAND:
            case Opcodes.IOR:
            case Opcodes.IXOR:
            case Opcodes.ISHL:
            case Opcodes.ISHR:
            case Opcodes.IUSHR:
            case Opcodes.L2I:
            case Opcodes.D2I:
            case Opcodes.FCMPL:
            case Opcodes.FCMPG:
                pop(2);
                push(INTEGER);
                break;

            case Opcodes.LADD:
            case Opcodes.LSUB:
            case Opcodes.LMUL:
            case Opcodes.LDIV:
            case Opcodes.LREM:
            case Opcodes.LAND:
            case Opcodes.LOR:
            case Opcodes.LXOR:
                pop(4);
                push(LONG);
                push(TOP);
                break;

            case Opcodes.FADD:
            case Opcodes.FSUB:
            case Opcodes.FMUL:
            case Opcodes.FDIV:
            case Opcodes.FREM:
            case Opcodes.L2F:
            case Opcodes.D2F:
                pop(2);
                push(FLOAT);
                break;

            case Opcodes.DADD:
            case Opcodes.DSUB:
            case Opcodes.DMUL:
            case Opcodes.DDIV:
            case Opcodes.DREM:
                pop(4);
                push(DOUBLE);
                push(TOP);
                break;

            case Opcodes.LSHL:
            case Opcodes.LSHR:
            case Opcodes.LUSHR:
                pop(3);
                push(LONG);
                push(TOP);
                break;

            case Opcodes.IINC:
                set(arg, INTEGER);
                break;

            case Opcodes.I2L:
            case Opcodes.F2L:
                pop(1);
                push(LONG);
                push(TOP);
                break;

            case Opcodes.I2F:
                pop(1);
                push(FLOAT);
                break;

            case Opcodes.I2D:
            case Opcodes.F2D:
                pop(1);
                push(DOUBLE);
                push(TOP);
                break;

            case Opcodes.F2I:
            case Opcodes.ARRAYLENGTH:
            case Opcodes.INSTANCEOF:
                pop(1);
                push(INTEGER);
                break;

            case Opcodes.LCMP:
            case Opcodes.DCMPL:
            case Opcodes.DCMPG:
                pop(4);
                push(INTEGER);
                break;

            case Opcodes.JSR:
            case Opcodes.RET:
                throw new RuntimeException("JSR/RET are not supported with computeFrames option");

            case Opcodes.GETSTATIC:
                push(cw, item.strVal3);
                break;

            case Opcodes.PUTSTATIC:
                pop(item.strVal3);
                break;

            case Opcodes.GETFIELD:
                pop(1);
                push(cw, item.strVal3);
                break;

            case Opcodes.PUTFIELD:
                pop(item.strVal3);
                pop();
                break;

            case Opcodes.INVOKEVIRTUAL:
            case Opcodes.INVOKESPECIAL:
            case Opcodes.INVOKESTATIC:
            case Opcodes.INVOKEINTERFACE:
                pop(item.strVal3);
                if (opcode != Opcodes.INVOKESTATIC)
                {
                    t1 = pop();
                    if (opcode == Opcodes.INVOKESPECIAL && item.strVal2.charAt(0) == '<')
                    {
                        init(t1);
                    }
                }
                push(cw, item.strVal3);
                break;

            case Opcodes.INVOKEDYNAMIC:
                pop(item.strVal2);
                push(cw, item.strVal2);
                break;

            case Opcodes.NEW:
                push(UNINITIALIZED | cw.addUninitializedType(item.strVal1, arg));
                break;

            case Opcodes.NEWARRAY:
                pop();
                switch (arg)
                {
                case Opcodes.T_BOOLEAN:
                    push(ARRAY_OF | BOOLEAN);
                    break;

                case Opcodes.T_CHAR:
                    push(ARRAY_OF | CHAR);
                    break;

                case Opcodes.T_BYTE:
                    push(ARRAY_OF | BYTE);
                    break;

                case Opcodes.T_SHORT:
                    push(ARRAY_OF | SHORT);
                    break;

                case Opcodes.T_INT:
                    push(ARRAY_OF | INTEGER);
                    break;

                case Opcodes.T_FLOAT:
                    push(ARRAY_OF | FLOAT);
                    break;

                case Opcodes.T_DOUBLE:
                    push(ARRAY_OF | DOUBLE);
                    break;

                default:
                    push(ARRAY_OF | LONG);
                    break;
                }
                break;

            case Opcodes.ANEWARRAY:
                String s = item.strVal1;
                pop();
                if (s.charAt(0) == '[')
                {
                    push(cw, '[' + s);
                }
                else
                {
                    push(ARRAY_OF | OBJECT | cw.addType(s));
                }
                break;

            case Opcodes.CHECKCAST:
                s = item.strVal1;
                pop();
                if (s.charAt(0) == '[')
                {
                    push(cw, s);
                }
                else
                {
                    push(OBJECT | cw.addType(s));
                }
                break;

            default:
                pop(arg);
                push(cw, item.strVal1);
                break;
            }
        }