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17 package org.apache.commons.compress.harmony.unpack200.bytecode.forms;
18
19 import java.util.Arrays;
20 import java.util.HashMap;
21 import java.util.Map;
22
23 import org.apache.commons.compress.harmony.unpack200.bytecode.ByteCode;
24 import org.apache.commons.compress.harmony.unpack200.bytecode.CodeAttribute;
25 import org.apache.commons.compress.harmony.unpack200.bytecode.OperandManager;
26
27 public abstract class ByteCodeForm {
28
29 protected static final boolean WIDENED = true;
30
31 protected static final ByteCodeForm[] byteCodeArray = new ByteCodeForm[256];
32 protected static final Map<String, ByteCodeForm> byteCodesByName = new HashMap<>(256);
33 static {
34 byteCodeArray[0] = new NoArgumentForm(0, "nop");
35 byteCodeArray[1] = new NoArgumentForm(1, "aconst_null");
36 byteCodeArray[2] = new NoArgumentForm(2, "iconst_m1");
37 byteCodeArray[3] = new NoArgumentForm(3, "iconst_0");
38 byteCodeArray[4] = new NoArgumentForm(4, "iconst_1");
39 byteCodeArray[5] = new NoArgumentForm(5, "iconst_2");
40 byteCodeArray[6] = new NoArgumentForm(6, "iconst_3");
41 byteCodeArray[7] = new NoArgumentForm(7, "iconst_4");
42 byteCodeArray[8] = new NoArgumentForm(8, "iconst_5");
43 byteCodeArray[9] = new NoArgumentForm(9, "lconst_0");
44 byteCodeArray[10] = new NoArgumentForm(10, "lconst_1");
45 byteCodeArray[11] = new NoArgumentForm(11, "fconst_0");
46 byteCodeArray[12] = new NoArgumentForm(12, "fconst_1");
47 byteCodeArray[13] = new NoArgumentForm(13, "fconst_2");
48 byteCodeArray[14] = new NoArgumentForm(14, "dconst_0");
49 byteCodeArray[15] = new NoArgumentForm(15, "dconst_1");
50 byteCodeArray[16] = new ByteForm(16, "bipush", new int[] { 16, -1 });
51 byteCodeArray[17] = new ShortForm(17, "sipush", new int[] { 17, -1, -1 });
52 byteCodeArray[18] = new StringRefForm(18, "ldc", new int[] { 18, -1 });
53 byteCodeArray[19] = new StringRefForm(19, "ldc_w", new int[] { 19, -1, -1 }, WIDENED);
54 byteCodeArray[20] = new LongForm(20, "ldc2_w", new int[] { 20, -1, -1 });
55 byteCodeArray[21] = new LocalForm(21, "iload", new int[] { 21, -1 });
56 byteCodeArray[22] = new LocalForm(22, "lload", new int[] { 22, -1 });
57 byteCodeArray[23] = new LocalForm(23, "fload", new int[] { 23, -1 });
58 byteCodeArray[24] = new LocalForm(24, "dload", new int[] { 24, -1 });
59 byteCodeArray[25] = new LocalForm(25, "aload", new int[] { 25, -1 });
60 byteCodeArray[26] = new NoArgumentForm(26, "iload_0");
61 byteCodeArray[27] = new NoArgumentForm(27, "iload_1");
62 byteCodeArray[28] = new NoArgumentForm(28, "iload_2");
63 byteCodeArray[29] = new NoArgumentForm(29, "iload_3");
64 byteCodeArray[30] = new NoArgumentForm(30, "lload_0");
65 byteCodeArray[31] = new NoArgumentForm(31, "lload_1");
66 byteCodeArray[32] = new NoArgumentForm(32, "lload_2");
67 byteCodeArray[33] = new NoArgumentForm(33, "lload_3");
68 byteCodeArray[34] = new NoArgumentForm(34, "fload_0");
69 byteCodeArray[35] = new NoArgumentForm(35, "fload_1");
70 byteCodeArray[36] = new NoArgumentForm(36, "fload_2");
71 byteCodeArray[37] = new NoArgumentForm(37, "fload_3");
72 byteCodeArray[38] = new NoArgumentForm(38, "dload_0");
73 byteCodeArray[39] = new NoArgumentForm(39, "dload_1");
74 byteCodeArray[40] = new NoArgumentForm(40, "dload_2");
75 byteCodeArray[41] = new NoArgumentForm(41, "dload_3");
76 byteCodeArray[42] = new NoArgumentForm(42, "aload_0");
77 byteCodeArray[43] = new NoArgumentForm(43, "aload_1");
78 byteCodeArray[44] = new NoArgumentForm(44, "aload_2");
79 byteCodeArray[45] = new NoArgumentForm(45, "aload_3");
80 byteCodeArray[46] = new NoArgumentForm(46, "iaload");
81 byteCodeArray[47] = new NoArgumentForm(47, "laload");
82 byteCodeArray[48] = new NoArgumentForm(48, "faload");
83 byteCodeArray[49] = new NoArgumentForm(49, "daload");
84 byteCodeArray[50] = new NoArgumentForm(50, "aaload");
85 byteCodeArray[51] = new NoArgumentForm(51, "baload");
86 byteCodeArray[52] = new NoArgumentForm(52, "caload");
87 byteCodeArray[53] = new NoArgumentForm(53, "saload");
88 byteCodeArray[54] = new LocalForm(54, "istore", new int[] { 54, -1 });
89 byteCodeArray[55] = new LocalForm(55, "lstore", new int[] { 55, -1 });
90 byteCodeArray[56] = new LocalForm(56, "fstore", new int[] { 56, -1 });
91 byteCodeArray[57] = new LocalForm(57, "dstore", new int[] { 57, -1 });
92 byteCodeArray[58] = new LocalForm(58, "astore", new int[] { 58, -1 });
93 byteCodeArray[59] = new NoArgumentForm(59, "istore_0");
94 byteCodeArray[60] = new NoArgumentForm(60, "istore_1");
95 byteCodeArray[61] = new NoArgumentForm(61, "istore_2");
96 byteCodeArray[62] = new NoArgumentForm(62, "istore_3");
97 byteCodeArray[63] = new NoArgumentForm(63, "lstore_0");
98 byteCodeArray[64] = new NoArgumentForm(64, "lstore_1");
99 byteCodeArray[65] = new NoArgumentForm(65, "lstore_2");
100 byteCodeArray[66] = new NoArgumentForm(66, "lstore_3");
101 byteCodeArray[67] = new NoArgumentForm(67, "fstore_0");
102 byteCodeArray[68] = new NoArgumentForm(68, "fstore_1");
103 byteCodeArray[69] = new NoArgumentForm(69, "fstore_2");
104 byteCodeArray[70] = new NoArgumentForm(70, "fstore_3");
105 byteCodeArray[71] = new NoArgumentForm(71, "dstore_0");
106 byteCodeArray[72] = new NoArgumentForm(72, "dstore_1");
107 byteCodeArray[73] = new NoArgumentForm(73, "dstore_2");
108 byteCodeArray[74] = new NoArgumentForm(74, "dstore_3");
109 byteCodeArray[75] = new NoArgumentForm(75, "astore_0");
110 byteCodeArray[76] = new NoArgumentForm(76, "astore_1");
111 byteCodeArray[77] = new NoArgumentForm(77, "astore_2");
112 byteCodeArray[78] = new NoArgumentForm(78, "astore_3");
113 byteCodeArray[79] = new NoArgumentForm(79, "iastore");
114 byteCodeArray[80] = new NoArgumentForm(80, "lastore");
115 byteCodeArray[81] = new NoArgumentForm(81, "fastore");
116 byteCodeArray[82] = new NoArgumentForm(82, "dastore");
117 byteCodeArray[83] = new NoArgumentForm(83, "aastore");
118 byteCodeArray[84] = new NoArgumentForm(84, "bastore");
119 byteCodeArray[85] = new NoArgumentForm(85, "castore");
120 byteCodeArray[86] = new NoArgumentForm(86, "sastore");
121 byteCodeArray[87] = new NoArgumentForm(87, "pop");
122 byteCodeArray[88] = new NoArgumentForm(88, "pop2");
123 byteCodeArray[89] = new NoArgumentForm(89, "dup");
124 byteCodeArray[90] = new NoArgumentForm(90, "dup_x1");
125 byteCodeArray[91] = new NoArgumentForm(91, "dup_x2");
126 byteCodeArray[92] = new NoArgumentForm(92, "dup2");
127 byteCodeArray[93] = new NoArgumentForm(93, "dup2_x1");
128 byteCodeArray[94] = new NoArgumentForm(94, "dup2_x2");
129 byteCodeArray[95] = new NoArgumentForm(95, "swap");
130 byteCodeArray[96] = new NoArgumentForm(96, "iadd");
131 byteCodeArray[97] = new NoArgumentForm(97, "ladd");
132 byteCodeArray[98] = new NoArgumentForm(98, "fadd");
133 byteCodeArray[99] = new NoArgumentForm(99, "dadd");
134 byteCodeArray[100] = new NoArgumentForm(100, "isub");
135 byteCodeArray[101] = new NoArgumentForm(101, "lsub");
136 byteCodeArray[102] = new NoArgumentForm(102, "fsub");
137 byteCodeArray[103] = new NoArgumentForm(103, "dsub");
138 byteCodeArray[104] = new NoArgumentForm(104, "imul");
139 byteCodeArray[105] = new NoArgumentForm(105, "lmul");
140 byteCodeArray[106] = new NoArgumentForm(106, "fmul");
141 byteCodeArray[107] = new NoArgumentForm(107, "dmul");
142 byteCodeArray[108] = new NoArgumentForm(108, "idiv");
143 byteCodeArray[109] = new NoArgumentForm(109, "ldiv");
144 byteCodeArray[110] = new NoArgumentForm(110, "fdiv");
145 byteCodeArray[111] = new NoArgumentForm(111, "ddiv");
146 byteCodeArray[112] = new NoArgumentForm(112, "irem");
147 byteCodeArray[113] = new NoArgumentForm(113, "lrem");
148 byteCodeArray[114] = new NoArgumentForm(114, "frem");
149 byteCodeArray[115] = new NoArgumentForm(115, "drem");
150 byteCodeArray[116] = new NoArgumentForm(116, "");
151 byteCodeArray[117] = new NoArgumentForm(117, "lneg");
152 byteCodeArray[118] = new NoArgumentForm(118, "fneg");
153 byteCodeArray[119] = new NoArgumentForm(119, "dneg");
154 byteCodeArray[120] = new NoArgumentForm(120, "ishl");
155 byteCodeArray[121] = new NoArgumentForm(121, "lshl");
156 byteCodeArray[122] = new NoArgumentForm(122, "ishr");
157 byteCodeArray[123] = new NoArgumentForm(123, "lshr");
158 byteCodeArray[124] = new NoArgumentForm(124, "iushr");
159 byteCodeArray[125] = new NoArgumentForm(125, "lushr");
160 byteCodeArray[126] = new NoArgumentForm(126, "iand");
161 byteCodeArray[127] = new NoArgumentForm(127, "land");
162 byteCodeArray[128] = new NoArgumentForm(128, "ior");
163 byteCodeArray[129] = new NoArgumentForm(129, "lor");
164 byteCodeArray[130] = new NoArgumentForm(130, "ixor");
165 byteCodeArray[131] = new NoArgumentForm(131, "lxor");
166 byteCodeArray[132] = new IincForm(132, "iinc", new int[] { 132, -1, -1 });
167 byteCodeArray[133] = new NoArgumentForm(133, "i2l");
168 byteCodeArray[134] = new NoArgumentForm(134, "i2f");
169 byteCodeArray[135] = new NoArgumentForm(135, "i2d");
170 byteCodeArray[136] = new NoArgumentForm(136, "l2i");
171 byteCodeArray[137] = new NoArgumentForm(137, "l2f");
172 byteCodeArray[138] = new NoArgumentForm(138, "l2d");
173 byteCodeArray[139] = new NoArgumentForm(139, "f2i");
174 byteCodeArray[140] = new NoArgumentForm(140, "f2l");
175 byteCodeArray[141] = new NoArgumentForm(141, "f2d");
176 byteCodeArray[142] = new NoArgumentForm(142, "d2i");
177 byteCodeArray[143] = new NoArgumentForm(143, "d2l");
178 byteCodeArray[144] = new NoArgumentForm(144, "d2f");
179 byteCodeArray[145] = new NoArgumentForm(145, "i2b");
180 byteCodeArray[146] = new NoArgumentForm(146, "i2c");
181 byteCodeArray[147] = new NoArgumentForm(147, "i2s");
182 byteCodeArray[148] = new NoArgumentForm(148, "lcmp");
183 byteCodeArray[149] = new NoArgumentForm(149, "fcmpl");
184 byteCodeArray[150] = new NoArgumentForm(150, "fcmpg");
185 byteCodeArray[151] = new NoArgumentForm(151, "dcmpl");
186 byteCodeArray[152] = new NoArgumentForm(152, "dcmpg");
187 byteCodeArray[153] = new LabelForm(153, "ifeq", new int[] { 153, -1, -1 });
188 byteCodeArray[154] = new LabelForm(154, "ifne", new int[] { 154, -1, -1 });
189 byteCodeArray[155] = new LabelForm(155, "iflt", new int[] { 155, -1, -1 });
190 byteCodeArray[156] = new LabelForm(156, "ifge", new int[] { 156, -1, -1 });
191 byteCodeArray[157] = new LabelForm(157, "ifgt", new int[] { 157, -1, -1 });
192 byteCodeArray[158] = new LabelForm(158, "ifle", new int[] { 158, -1, -1 });
193 byteCodeArray[159] = new LabelForm(159, "if_icmpeq", new int[] { 159, -1, -1 });
194 byteCodeArray[160] = new LabelForm(160, "if_icmpne", new int[] { 160, -1, -1 });
195 byteCodeArray[161] = new LabelForm(161, "if_icmplt", new int[] { 161, -1, -1 });
196 byteCodeArray[162] = new LabelForm(162, "if_icmpge", new int[] { 162, -1, -1 });
197 byteCodeArray[163] = new LabelForm(163, "if_icmpgt", new int[] { 163, -1, -1 });
198 byteCodeArray[164] = new LabelForm(164, "if_icmple", new int[] { 164, -1, -1 });
199 byteCodeArray[165] = new LabelForm(165, "if_acmpeq", new int[] { 165, -1, -1 });
200 byteCodeArray[166] = new LabelForm(166, "if_acmpne", new int[] { 166, -1, -1 });
201 byteCodeArray[167] = new LabelForm(167, "goto", new int[] { 167, -1, -1 });
202 byteCodeArray[168] = new LabelForm(168, "jsr", new int[] { 168, -1, -1 });
203 byteCodeArray[169] = new LocalForm(169, "ret", new int[] { 169, -1 });
204 byteCodeArray[170] = new TableSwitchForm(170, "tableswitch");
205 byteCodeArray[171] = new LookupSwitchForm(171, "lookupswitch");
206 byteCodeArray[172] = new NoArgumentForm(172, "ireturn");
207 byteCodeArray[173] = new NoArgumentForm(173, "lreturn");
208 byteCodeArray[174] = new NoArgumentForm(174, "freturn");
209 byteCodeArray[175] = new NoArgumentForm(175, "dreturn");
210 byteCodeArray[176] = new NoArgumentForm(176, "areturn");
211 byteCodeArray[177] = new NoArgumentForm(177, "return");
212 byteCodeArray[178] = new FieldRefForm(178, "getstatic", new int[] { 178, -1, -1 });
213 byteCodeArray[179] = new FieldRefForm(179, "putstatic", new int[] { 179, -1, -1 });
214 byteCodeArray[180] = new FieldRefForm(180, "getfield", new int[] { 180, -1, -1 });
215 byteCodeArray[181] = new FieldRefForm(181, "putfield", new int[] { 181, -1, -1 });
216 byteCodeArray[182] = new MethodRefForm(182, "invokevirtual", new int[] { 182, -1, -1 });
217 byteCodeArray[183] = new MethodRefForm(183, "invokespecial", new int[] { 183, -1, -1 });
218 byteCodeArray[184] = new MethodRefForm(184, "invokestatic", new int[] { 184, -1, -1 });
219 byteCodeArray[185] = new IMethodRefForm(185, "invokeinterface", new int[] { 185, -1, -1, -1, 0 });
220 byteCodeArray[186] = new NoArgumentForm(186, "xxxunusedxxx");
221 byteCodeArray[187] = new NewClassRefForm(187, "new", new int[] { 187, -1, -1 });
222 byteCodeArray[188] = new ByteForm(188, "newarray", new int[] { 188, -1 });
223 byteCodeArray[189] = new ClassRefForm(189, "anewarray", new int[] { 189, -1, -1 });
224 byteCodeArray[190] = new NoArgumentForm(190, "arraylength");
225 byteCodeArray[191] = new NoArgumentForm(191, "athrow");
226 byteCodeArray[192] = new ClassRefForm(192, "checkcast", new int[] { 192, -1, -1 });
227 byteCodeArray[193] = new ClassRefForm(193, "instanceof", new int[] { 193, -1, -1 });
228 byteCodeArray[194] = new NoArgumentForm(194, "monitorenter");
229 byteCodeArray[195] = new NoArgumentForm(195, "monitorexit");
230 byteCodeArray[196] = new WideForm(196, "wide");
231 byteCodeArray[197] = new MultiANewArrayForm(197, "multianewarray", new int[] { 197, -1, -1, -1 });
232 byteCodeArray[198] = new LabelForm(198, "ifnull", new int[] { 198, -1, -1 });
233 byteCodeArray[199] = new LabelForm(199, "ifnonnull", new int[] { 199, -1, -1 });
234 byteCodeArray[200] = new LabelForm(200, "goto_w", new int[] { 200, -1, -1, -1, -1 }, WIDENED);
235 byteCodeArray[201] = new LabelForm(201, "jsr_w", new int[] { 201, -1, -1, -1, -1 }, WIDENED);
236
237
238 byteCodeArray[202] = new ThisFieldRefForm(202, "getstatic_this", new int[] { 178, -1, -1 });
239 byteCodeArray[203] = new ThisFieldRefForm(203, "putstatic_this", new int[] { 179, -1, -1 });
240 byteCodeArray[204] = new ThisFieldRefForm(204, "getfield_this", new int[] { 180, -1, -1 });
241 byteCodeArray[205] = new ThisFieldRefForm(205, "putfield_this", new int[] { 181, -1, -1 });
242 byteCodeArray[206] = new ThisMethodRefForm(206, "invokevirtual_this", new int[] { 182, -1, -1 });
243 byteCodeArray[207] = new ThisMethodRefForm(207, "invokespecial_this", new int[] { 183, -1, -1 });
244 byteCodeArray[208] = new ThisMethodRefForm(208, "invokestatic_this", new int[] { 184, -1, -1 });
245 byteCodeArray[209] = new ThisFieldRefForm(209, "aload_0_getstatic_this", new int[] { 42, 178, -1, -1 });
246 byteCodeArray[210] = new ThisFieldRefForm(210, "aload_0_putstatic_this", new int[] { 42, 179, -1, -1 });
247 byteCodeArray[211] = new ThisFieldRefForm(211, "aload_0_getfield_this", new int[] { 42, 180, -1, -1 });
248 byteCodeArray[212] = new ThisFieldRefForm(212, "aload_0_putfield_this", new int[] { 42, 181, -1, -1 });
249 byteCodeArray[213] = new ThisMethodRefForm(213, "aload_0_invokevirtual_this", new int[] { 42, 182, -1, -1 });
250 byteCodeArray[214] = new ThisMethodRefForm(214, "aload_0_invokespecial_this", new int[] { 42, 183, -1, -1 });
251 byteCodeArray[215] = new ThisMethodRefForm(215, "aload_0_invokestatic_this", new int[] { 42, 184, -1, -1 });
252 byteCodeArray[216] = new SuperFieldRefForm(216, "getstatic_super", new int[] { 178, -1, -1 });
253 byteCodeArray[217] = new SuperFieldRefForm(217, "putstatic_super", new int[] { 179, -1, -1 });
254 byteCodeArray[218] = new SuperFieldRefForm(218, "getfield_super", new int[] { 180, -1, -1 });
255 byteCodeArray[219] = new SuperFieldRefForm(219, "putfield_super", new int[] { 181, -1, -1 });
256 byteCodeArray[220] = new SuperMethodRefForm(220, "invokevirtual_super", new int[] { 182, -1, -1 });
257 byteCodeArray[221] = new SuperMethodRefForm(221, "invokespecial_super", new int[] { 183, -1, -1 });
258 byteCodeArray[222] = new SuperMethodRefForm(222, "invokestatic_super", new int[] { 184, -1, -1 });
259 byteCodeArray[223] = new SuperFieldRefForm(223, "aload_0_getstatic_super", new int[] { 42, 178, -1, -1 });
260 byteCodeArray[224] = new SuperFieldRefForm(224, "aload_0_putstatic_super", new int[] { 42, 179, -1, -1 });
261 byteCodeArray[225] = new SuperFieldRefForm(225, "aload_0_getfield_super", new int[] { 42, 180, -1, -1 });
262 byteCodeArray[226] = new SuperFieldRefForm(226, "aload_0_putfield_super", new int[] { 42, 181, -1, -1 });
263 byteCodeArray[227] = new SuperMethodRefForm(227, "aload_0_invokevirtual_super", new int[] { 42, 182, -1, -1 });
264 byteCodeArray[228] = new SuperMethodRefForm(228, "aload_0_invokespecial_super", new int[] { 42, 183, -1, -1 });
265 byteCodeArray[229] = new SuperMethodRefForm(229, "aload_0_invokestatic_super", new int[] { 42, 184, -1, -1 });
266 byteCodeArray[230] = new ThisInitMethodRefForm(230, "invokespecial_this_init", new int[] { 183, -1, -1 });
267 byteCodeArray[231] = new SuperInitMethodRefForm(231, "invokespecial_super_init", new int[] { 183, -1, -1 });
268 byteCodeArray[232] = new NewInitMethodRefForm(232, "invokespecial_new_init", new int[] { 183, -1, -1 });
269 byteCodeArray[233] = new NarrowClassRefForm(233, "cldc", new int[] { 18, -1 });
270 byteCodeArray[234] = new IntRefForm(234, "ildc", new int[] { 18, -1 });
271 byteCodeArray[235] = new FloatRefForm(235, "fldc", new int[] { 18, -1 });
272 byteCodeArray[236] = new NarrowClassRefForm(236, "cldc_w", new int[] { 19, -1, -1 }, WIDENED);
273 byteCodeArray[237] = new IntRefForm(237, "ildc_w", new int[] { 19, -1, -1 }, WIDENED);
274 byteCodeArray[238] = new FloatRefForm(238, "fldc_w", new int[] { 19, -1, -1 }, WIDENED);
275 byteCodeArray[239] = new DoubleForm(239, "dldc2_w", new int[] { 20, -1, -1 });
276
277
278 byteCodeArray[254] = new NoArgumentForm(254, "impdep1");
279 byteCodeArray[255] = new NoArgumentForm(255, "impdep2");
280
281
282
283
284
285
286
287 for (final ByteCodeForm byteCode : byteCodeArray) {
288 if (byteCode != null) {
289 byteCodesByName.put(byteCode.getName(), byteCode);
290 }
291 }
292 }
293
294 public static ByteCodeForm get(final int opcode) {
295 return byteCodeArray[opcode];
296 }
297
298 private final int opcode;
299 private final String name;
300 private final int[] rewrite;
301 private int firstOperandIndex;
302
303 private int operandLength;
304
305
306
307
308
309
310
311 public ByteCodeForm(final int opcode, final String name) {
312 this(opcode, name, new int[] { opcode });
313 }
314
315
316
317
318
319
320
321
322 public ByteCodeForm(final int opcode, final String name, final int[] rewrite) {
323 this.opcode = opcode;
324 this.name = name;
325 this.rewrite = rewrite;
326 calculateOperandPosition();
327 }
328
329 protected void calculateOperandPosition() {
330 firstOperandIndex = -1;
331 operandLength = -1;
332
333
334 int iterationIndex = 0;
335 while (iterationIndex < rewrite.length) {
336 if (rewrite[iterationIndex] < 0) {
337
338 firstOperandIndex = iterationIndex;
339 iterationIndex = rewrite.length;
340 } else {
341 iterationIndex++;
342 }
343 }
344
345 if (firstOperandIndex == -1) {
346
347 return;
348 }
349
350
351 int lastOperandIndex = -1;
352 iterationIndex = firstOperandIndex;
353 while (iterationIndex < rewrite.length) {
354 if (rewrite[iterationIndex] < 0) {
355 lastOperandIndex = iterationIndex;
356 }
357 iterationIndex++;
358 }
359
360
361 final int difference = lastOperandIndex - firstOperandIndex;
362
363
364 if (difference < 0) {
365 throw new Error("Logic error: not finding rewrite operands correctly");
366 }
367 operandLength = difference + 1;
368 }
369
370 public int firstOperandIndex() {
371 return firstOperandIndex;
372 }
373
374
375
376
377
378
379
380 public void fixUpByteCodeTargets(final ByteCode byteCode, final CodeAttribute codeAttribute) {
381
382 }
383
384 public String getName() {
385 return name;
386 }
387
388 public int getOpcode() {
389 return opcode;
390 }
391
392 public int[] getRewrite() {
393 return rewrite;
394 }
395
396 public int[] getRewriteCopy() {
397 return Arrays.copyOf(rewrite, rewrite.length);
398 }
399
400
401
402
403
404
405 public boolean hasMultipleByteCodes() {
406
407
408 if (rewrite.length > 1 && rewrite[0] == 42) {
409
410
411
412 return rewrite[1] > 0;
413 }
414 return false;
415 }
416
417 public boolean hasNoOperand() {
418 return false;
419 }
420
421 public boolean nestedMustStartClassPool() {
422 return false;
423 }
424
425 public int operandLength() {
426 return operandLength;
427 }
428
429
430
431
432
433
434
435
436
437 public abstract void setByteCodeOperands(ByteCode byteCode, OperandManager operandManager, int codeLength);
438
439 @Override
440 public String toString() {
441 return this.getClass().getName() + "(" + getName() + ")";
442 }
443 }