 public void accept(ClassVisitor classVisitor,
Attribute[] attrs,
int flags) {
byte[] b = this.b; // the bytecode array
char[] c = new char[maxStringLength]; // buffer used to read strings
int i, j, k; // loop variables
int u, v, w; // indexes in b
Attribute attr;
int access;
String name;
String desc;
String attrName;
String signature;
int anns = 0;
int ianns = 0;
Attribute cattrs = null;
// visits the header
u = header;
access = readUnsignedShort(u);
name = readClass(u + 2, c);
v = items[readUnsignedShort(u + 4)];
String superClassName = v == 0 ? null : readUTF8(v, c);
String[] implementedItfs = new String[readUnsignedShort(u + 6)];
w = 0;
u += 8;
for (i = 0; i < implementedItfs.length; ++i) {
implementedItfs[i] = readClass(u, c);
u += 2;
}
boolean skipCode = (flags & SKIP_CODE) != 0;
boolean skipDebug = (flags & SKIP_DEBUG) != 0;
boolean unzip = (flags & EXPAND_FRAMES) != 0;
// skips fields and methods
v = u;
i = readUnsignedShort(v);
v += 2;
for (; i > 0; --i) {
j = readUnsignedShort(v + 6);
v += 8;
for (; j > 0; --j) {
v += 6 + readInt(v + 2);
}
}
i = readUnsignedShort(v);
v += 2;
for (; i > 0; --i) {
j = readUnsignedShort(v + 6);
v += 8;
for (; j > 0; --j) {
v += 6 + readInt(v + 2);
}
}
// reads the class's attributes
signature = null;
String sourceFile = null;
String sourceDebug = null;
String enclosingOwner = null;
String enclosingName = null;
String enclosingDesc = null;
i = readUnsignedShort(v);
v += 2;
for (; i > 0; --i) {
attrName = readUTF8(v, c);
// tests are sorted in decreasing frequency order
// (based on frequencies observed on typical classes)
if ("SourceFile".equals(attrName)) {
sourceFile = readUTF8(v + 6, c);
} else if ("InnerClasses".equals(attrName)) {
w = v + 6;
} else if ("EnclosingMethod".equals(attrName)) {
enclosingOwner = readClass(v + 6, c);
int item = readUnsignedShort(v + 8);
if (item != 0) {
enclosingName = readUTF8(items[item], c);
enclosingDesc = readUTF8(items[item] + 2, c);
}
} else if (SIGNATURES && "Signature".equals(attrName)) {
signature = readUTF8(v + 6, c);
} else if (ANNOTATIONS && "RuntimeVisibleAnnotations".equals(attrName)) {
anns = v + 6;
} else if ("Deprecated".equals(attrName)) {
access |= Opcodes.ACC_DEPRECATED;
} else if ("Synthetic".equals(attrName)) {
access |= Opcodes.ACC_SYNTHETIC;
} else if ("SourceDebugExtension".equals(attrName)) {
int len = readInt(v + 2);
sourceDebug = readUTF(v + 6, len, new char[len]);
} else if (ANNOTATIONS && "RuntimeInvisibleAnnotations".equals(attrName)) {
ianns = v + 6;
} else {
attr = readAttribute(attrs,
attrName,
v + 6,
readInt(v + 2),
c,
-1,
null);
if (attr != null) {
attr.next = cattrs;
cattrs = attr;
}
}
v += 6 + readInt(v + 2);
}
// calls the visit method
classVisitor.visit(readInt(4),
access,
name,
signature,
superClassName,
implementedItfs);
// calls the visitSource method
if (!skipDebug && (sourceFile != null || sourceDebug != null)) {
classVisitor.visitSource(sourceFile, sourceDebug);
}
// calls the visitOuterClass method
if (enclosingOwner != null) {
classVisitor.visitOuterClass(enclosingOwner,
enclosingName,
enclosingDesc);
}
// visits the class annotations
if (ANNOTATIONS) {
for (i = 1; i >= 0; --i) {
v = i == 0 ? ianns : anns;
if (v != 0) {
j = readUnsignedShort(v);
v += 2;
for (; j > 0; --j) {
v = readAnnotationValues(v + 2,
c,
true,
classVisitor.visitAnnotation(readUTF8(v, c), i != 0));
}
}
}
}
// visits the class attributes
while (cattrs != null) {
attr = cattrs.next;
cattrs.next = null;
classVisitor.visitAttribute(cattrs);
cattrs = attr;
}
// calls the visitInnerClass method
if (w != 0) {
i = readUnsignedShort(w);
w += 2;
for (; i > 0; --i) {
classVisitor.visitInnerClass(readUnsignedShort(w) == 0
? null
: readClass(w, c), readUnsignedShort(w + 2) == 0
? null
: readClass(w + 2, c), readUnsignedShort(w + 4) == 0
? null
: readUTF8(w + 4, c), readUnsignedShort(w + 6));
w += 8;
}
}
// visits the fields
i = readUnsignedShort(u);
u += 2;
for (; i > 0; --i) {
access = readUnsignedShort(u);
name = readUTF8(u + 2, c);
desc = readUTF8(u + 4, c);
// visits the field's attributes and looks for a ConstantValue
// attribute
int fieldValueItem = 0;
signature = null;
anns = 0;
ianns = 0;
cattrs = null;
j = readUnsignedShort(u + 6);
u += 8;
for (; j > 0; --j) {
attrName = readUTF8(u, c);
// tests are sorted in decreasing frequency order
// (based on frequencies observed on typical classes)
if ("ConstantValue".equals(attrName)) {
fieldValueItem = readUnsignedShort(u + 6);
} else if (SIGNATURES && "Signature".equals(attrName)) {
signature = readUTF8(u + 6, c);
} else if ("Deprecated".equals(attrName)) {
access |= Opcodes.ACC_DEPRECATED;
} else if ("Synthetic".equals(attrName)) {
access |= Opcodes.ACC_SYNTHETIC;
} else if (ANNOTATIONS && "RuntimeVisibleAnnotations".equals(attrName)) {
anns = u + 6;
} else if (ANNOTATIONS && "RuntimeInvisibleAnnotations".equals(attrName)) {
ianns = u + 6;
} else {
attr = readAttribute(attrs,
attrName,
u + 6,
readInt(u + 2),
c,
-1,
null);
if (attr != null) {
attr.next = cattrs;
cattrs = attr;
}
}
u += 6 + readInt(u + 2);
}
// visits the field
FieldVisitor fv = classVisitor.visitField(access,
name,
desc,
signature,
fieldValueItem == 0 ? null : readConst(fieldValueItem, c));
// visits the field annotations and attributes
if (fv != null) {
if (ANNOTATIONS) {
for (j = 1; j >= 0; --j) {
v = j == 0 ? ianns : anns;
if (v != 0) {
k = readUnsignedShort(v);
v += 2;
for (; k > 0; --k) {
v = readAnnotationValues(v + 2,
c,
true,
fv.visitAnnotation(readUTF8(v, c), j != 0));
}
}
}
}
while (cattrs != null) {
attr = cattrs.next;
cattrs.next = null;
fv.visitAttribute(cattrs);
cattrs = attr;
}
fv.visitEnd();
}
}
// visits the methods
i = readUnsignedShort(u);
u += 2;
for (; i > 0; --i) {
int u0 = u + 6;
access = readUnsignedShort(u);
name = readUTF8(u + 2, c);
desc = readUTF8(u + 4, c);
signature = null;
anns = 0;
ianns = 0;
int dann = 0;
int mpanns = 0;
int impanns = 0;
cattrs = null;
v = 0;
w = 0;
// looks for Code and Exceptions attributes
j = readUnsignedShort(u + 6);
u += 8;
for (; j > 0; --j) {
attrName = readUTF8(u, c);
int attrSize = readInt(u + 2);
u += 6;
// tests are sorted in decreasing frequency order
// (based on frequencies observed on typical classes)
if ("Code".equals(attrName)) {
if (!skipCode) {
v = u;
}
} else if ("Exceptions".equals(attrName)) {
w = u;
} else if (SIGNATURES && "Signature".equals(attrName)) {
signature = readUTF8(u, c);
} else if ("Deprecated".equals(attrName)) {
access |= Opcodes.ACC_DEPRECATED;
} else if (ANNOTATIONS && "RuntimeVisibleAnnotations".equals(attrName)) {
anns = u;
} else if (ANNOTATIONS && "AnnotationDefault".equals(attrName)) {
dann = u;
} else if ("Synthetic".equals(attrName)) {
access |= Opcodes.ACC_SYNTHETIC;
} else if (ANNOTATIONS && "RuntimeInvisibleAnnotations".equals(attrName)) {
ianns = u;
} else if (ANNOTATIONS && "RuntimeVisibleParameterAnnotations".equals(attrName))
{
mpanns = u;
} else if (ANNOTATIONS && "RuntimeInvisibleParameterAnnotations".equals(attrName))
{
impanns = u;
} else {
attr = readAttribute(attrs,
attrName,
u,
attrSize,
c,
-1,
null);
if (attr != null) {
attr.next = cattrs;
cattrs = attr;
}
}
u += attrSize;
}
// reads declared exceptions
String[] exceptions;
if (w == 0) {
exceptions = null;
} else {
exceptions = new String[readUnsignedShort(w)];
w += 2;
for (j = 0; j < exceptions.length; ++j) {
exceptions[j] = readClass(w, c);
w += 2;
}
}
// visits the method's code, if any
MethodVisitor mv = classVisitor.visitMethod(access,
name,
desc,
signature,
exceptions);
if (mv != null) {
/*
* if the returned MethodVisitor is in fact a MethodWriter, it
* means there is no method adapter between the reader and the
* writer. If, in addition, the writer's constant pool was
* copied from this reader (mw.cw.cr == this), and the signature
* and exceptions of the method have not been changed, then it
* is possible to skip all visit events and just copy the
* original code of the method to the writer (the access, name
* and descriptor can have been changed, this is not important
* since they are not copied as is from the reader).
*/
if (WRITER && mv instanceof MethodWriter) {
MethodWriter mw = (MethodWriter) mv;
if (mw.cw.cr == this) {
if (signature == mw.signature) {
boolean sameExceptions = false;
if (exceptions == null) {
sameExceptions = mw.exceptionCount == 0;
} else {
if (exceptions.length == mw.exceptionCount) {
sameExceptions = true;
for (j = exceptions.length - 1; j >= 0; --j)
{
w -= 2;
if (mw.exceptions[j] != readUnsignedShort(w))
{
sameExceptions = false;
break;
}
}
}
}
if (sameExceptions) {
/*
* we do not copy directly the code into
* MethodWriter to save a byte array copy
* operation. The real copy will be done in
* ClassWriter.toByteArray().
*/
mw.classReaderOffset = u0;
mw.classReaderLength = u - u0;
continue;
}
}
}
}
if (ANNOTATIONS && dann != 0) {
AnnotationVisitor dv = mv.visitAnnotationDefault();
readAnnotationValue(dann, c, null, dv);
if (dv != null) {
dv.visitEnd();
}
}
if (ANNOTATIONS) {
for (j = 1; j >= 0; --j) {
w = j == 0 ? ianns : anns;
if (w != 0) {
k = readUnsignedShort(w);
w += 2;
for (; k > 0; --k) {
w = readAnnotationValues(w + 2,
c,
true,
mv.visitAnnotation(readUTF8(w, c), j != 0));
}
}
}
}
if (ANNOTATIONS && mpanns != 0) {
readParameterAnnotations(mpanns, desc, c, true, mv);
}
if (ANNOTATIONS && impanns != 0) {
readParameterAnnotations(impanns, desc, c, false, mv);
}
while (cattrs != null) {
attr = cattrs.next;
cattrs.next = null;
mv.visitAttribute(cattrs);
cattrs = attr;
}
}
if (mv != null && v != 0) {
int maxStack = readUnsignedShort(v);
int maxLocals = readUnsignedShort(v + 2);
int codeLength = readInt(v + 4);
v += 8;
int codeStart = v;
int codeEnd = v + codeLength;
mv.visitCode();
// 1st phase: finds the labels
int label;
Label[] labels = new Label[codeLength + 2];
readLabel(codeLength + 1, labels);
while (v < codeEnd) {
w = v - codeStart;
int opcode = b[v] & 0xFF;
switch (ClassWriter.TYPE[opcode]) {
case ClassWriter.NOARG_INSN:
case ClassWriter.IMPLVAR_INSN:
v += 1;
break;
case ClassWriter.LABEL_INSN:
readLabel(w + readShort(v + 1), labels);
v += 3;
break;
case ClassWriter.LABELW_INSN:
readLabel(w + readInt(v + 1), labels);
v += 5;
break;
case ClassWriter.WIDE_INSN:
opcode = b[v + 1] & 0xFF;
if (opcode == Opcodes.IINC) {
v += 6;
} else {
v += 4;
}
break;
case ClassWriter.TABL_INSN:
// skips 0 to 3 padding bytes*
v = v + 4 - (w & 3);
// reads instruction
readLabel(w + readInt(v), labels);
j = readInt(v + 8) - readInt(v + 4) + 1;
v += 12;
for (; j > 0; --j) {
readLabel(w + readInt(v), labels);
v += 4;
}
break;
case ClassWriter.LOOK_INSN:
// skips 0 to 3 padding bytes*
v = v + 4 - (w & 3);
// reads instruction
readLabel(w + readInt(v), labels);
j = readInt(v + 4);
v += 8;
for (; j > 0; --j) {
readLabel(w + readInt(v + 4), labels);
v += 8;
}
break;
case ClassWriter.VAR_INSN:
case ClassWriter.SBYTE_INSN:
case ClassWriter.LDC_INSN:
v += 2;
break;
case ClassWriter.SHORT_INSN:
case ClassWriter.LDCW_INSN:
case ClassWriter.FIELDORMETH_INSN:
case ClassWriter.TYPE_INSN:
case ClassWriter.IINC_INSN:
v += 3;
break;
case ClassWriter.ITFMETH_INSN:
v += 5;
break;
// case MANA_INSN:
default:
v += 4;
break;
}
}
// parses the try catch entries
j = readUnsignedShort(v);
v += 2;
for (; j > 0; --j) {
Label start = readLabel(readUnsignedShort(v), labels);
Label end = readLabel(readUnsignedShort(v + 2), labels);
Label handler = readLabel(readUnsignedShort(v + 4), labels);
int type = readUnsignedShort(v + 6);
if (type == 0) {
mv.visitTryCatchBlock(start, end, handler, null);
} else {
mv.visitTryCatchBlock(start,
end,
handler,
readUTF8(items[type], c));
}
v += 8;
}
// parses the local variable, line number tables, and code
// attributes
int varTable = 0;
int varTypeTable = 0;
int stackMap = 0;
int frameCount = 0;
int frameMode = 0;
int frameOffset = 0;
int frameLocalCount = 0;
int frameLocalDiff = 0;
int frameStackCount = 0;
Object[] frameLocal = null;
Object[] frameStack = null;
boolean zip = true;
cattrs = null;
j = readUnsignedShort(v);
v += 2;
for (; j > 0; --j) {
attrName = readUTF8(v, c);
if ("LocalVariableTable".equals(attrName)) {
if (!skipDebug) {
varTable = v + 6;
k = readUnsignedShort(v + 6);
w = v + 8;
for (; k > 0; --k) {
label = readUnsignedShort(w);
if (labels[label] == null) {
readLabel(label, labels).status |= Label.DEBUG;
}
label += readUnsignedShort(w + 2);
if (labels[label] == null) {
readLabel(label, labels).status |= Label.DEBUG;
}
w += 10;
}
}
} else if ("LocalVariableTypeTable".equals(attrName)) {
varTypeTable = v + 6;
} else if ("LineNumberTable".equals(attrName)) {
if (!skipDebug) {
k = readUnsignedShort(v + 6);
w = v + 8;
for (; k > 0; --k) {
label = readUnsignedShort(w);
if (labels[label] == null) {
readLabel(label, labels).status |= Label.DEBUG;
}
labels[label].line = readUnsignedShort(w + 2);
w += 4;
}
}
} else if (FRAMES && "StackMapTable".equals(attrName)) {
if ((flags & SKIP_FRAMES) == 0) {
stackMap = v + 8;
frameCount = readUnsignedShort(v + 6);
}
/*
* here we do not extract the labels corresponding to
* the attribute content. This would require a full
* parsing of the attribute, which would need to be
* repeated in the second phase (see below). Instead the
* content of the attribute is read one frame at a time
* (i.e. after a frame has been visited, the next frame
* is read), and the labels it contains are also
* extracted one frame at a time. Thanks to the ordering
* of frames, having only a "one frame lookahead" is not
* a problem, i.e. it is not possible to see an offset
* smaller than the offset of the current insn and for
* which no Label exist.
*/
// TODO true for frame offsets,
// but for UNINITIALIZED type offsets?
} else if (FRAMES && "StackMap".equals(attrName)) {
if ((flags & SKIP_FRAMES) == 0) {
stackMap = v + 8;
frameCount = readUnsignedShort(v + 6);
zip = false;
}
/*
* IMPORTANT! here we assume that the frames are
* ordered, as in the StackMapTable attribute, although
* this is not guaranteed by the attribute format.
*/
} else {
for (k = 0; k < attrs.length; ++k) {
if (attrs[k].type.equals(attrName)) {
attr = attrs[k].read(this,
v + 6,
readInt(v + 2),
c,
codeStart - 8,
labels);
if (attr != null) {
attr.next = cattrs;
cattrs = attr;
}
}
}
}
v += 6 + readInt(v + 2);
}
// 2nd phase: visits each instruction
if (FRAMES && stackMap != 0) {
// creates the very first (implicit) frame from the method
// descriptor
frameLocal = new Object[maxLocals];
frameStack = new Object[maxStack];
if (unzip) {
int local = 0;
if ((access & Opcodes.ACC_STATIC) == 0) {
if ("< init >".equals(name)) {
frameLocal[local++] = Opcodes.UNINITIALIZED_THIS;
} else {
frameLocal[local++] = readClass(header + 2, c);
}
}
j = 1;
loop: while (true) {
k = j;
switch (desc.charAt(j++)) {
case 'Z":
case 'C":
case 'B":
case 'S":
case 'I":
frameLocal[local++] = Opcodes.INTEGER;
break;
case 'F":
frameLocal[local++] = Opcodes.FLOAT;
break;
case 'J":
frameLocal[local++] = Opcodes.LONG;
break;
case 'D":
frameLocal[local++] = Opcodes.DOUBLE;
break;
case '[":
while (desc.charAt(j) == '[") {
++j;
}
if (desc.charAt(j) == 'L") {
++j;
while (desc.charAt(j) != ';") {
++j;
}
}
frameLocal[local++] = desc.substring(k, ++j);
break;
case 'L":
while (desc.charAt(j) != ';") {
++j;
}
frameLocal[local++] = desc.substring(k + 1,
j++);
break;
default:
break loop;
}
}
frameLocalCount = local;
}
/*
* for the first explicit frame the offset is not
* offset_delta + 1 but only offset_delta; setting the
* implicit frame offset to -1 allow the use of the
* "offset_delta + 1" rule in all cases
*/
frameOffset = -1;
}
v = codeStart;
Label l;
while (v < codeEnd) {
w = v - codeStart;
l = labels[w];
if (l != null) {
mv.visitLabel(l);
if (!skipDebug && l.line > 0) {
mv.visitLineNumber(l.line, l);
}
}
while (FRAMES && frameLocal != null
&& (frameOffset == w || frameOffset == -1))
{
// if there is a frame for this offset,
// makes the visitor visit it,
// and reads the next frame if there is one.
if (!zip || unzip) {
mv.visitFrame(Opcodes.F_NEW,
frameLocalCount,
frameLocal,
frameStackCount,
frameStack);
} else if (frameOffset != -1) {
mv.visitFrame(frameMode,
frameLocalDiff,
frameLocal,
frameStackCount,
frameStack);
}
if (frameCount > 0) {
int tag, delta, n;
if (zip) {
tag = b[stackMap++] & 0xFF;
} else {
tag = MethodWriter.FULL_FRAME;
frameOffset = -1;
}
frameLocalDiff = 0;
if (tag < MethodWriter.SAME_LOCALS_1_STACK_ITEM_FRAME)
{
delta = tag;
frameMode = Opcodes.F_SAME;
frameStackCount = 0;
} else if (tag < MethodWriter.RESERVED) {
delta = tag
- MethodWriter.SAME_LOCALS_1_STACK_ITEM_FRAME;
stackMap = readFrameType(frameStack,
0,
stackMap,
c,
labels);
frameMode = Opcodes.F_SAME1;
frameStackCount = 1;
} else {
delta = readUnsignedShort(stackMap);
stackMap += 2;
if (tag == MethodWriter.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED)
{
stackMap = readFrameType(frameStack,
0,
stackMap,
c,
labels);
frameMode = Opcodes.F_SAME1;
frameStackCount = 1;
} else if (tag >= MethodWriter.CHOP_FRAME
&& tag < MethodWriter.SAME_FRAME_EXTENDED)
{
frameMode = Opcodes.F_CHOP;
frameLocalDiff = MethodWriter.SAME_FRAME_EXTENDED
- tag;
frameLocalCount -= frameLocalDiff;
frameStackCount = 0;
} else if (tag == MethodWriter.SAME_FRAME_EXTENDED)
{
frameMode = Opcodes.F_SAME;
frameStackCount = 0;
} else if (tag < MethodWriter.FULL_FRAME) {
j = unzip ? frameLocalCount : 0;
for (k = tag
- MethodWriter.SAME_FRAME_EXTENDED; k > 0; k--)
{
stackMap = readFrameType(frameLocal,
j++,
stackMap,
c,
labels);
}
frameMode = Opcodes.F_APPEND;
frameLocalDiff = tag
- MethodWriter.SAME_FRAME_EXTENDED;
frameLocalCount += frameLocalDiff;
frameStackCount = 0;
} else { // if (tag == FULL_FRAME) {
frameMode = Opcodes.F_FULL;
n = frameLocalDiff = frameLocalCount = readUnsignedShort(stackMap);
stackMap += 2;
for (j = 0; n > 0; n--) {
stackMap = readFrameType(frameLocal,
j++,
stackMap,
c,
labels);
}
n = frameStackCount = readUnsignedShort(stackMap);
stackMap += 2;
for (j = 0; n > 0; n--) {
stackMap = readFrameType(frameStack,
j++,
stackMap,
c,
labels);
}
}
}
frameOffset += delta + 1;
readLabel(frameOffset, labels);
--frameCount;
} else {
frameLocal = null;
}
}
int opcode = b[v] & 0xFF;
switch (ClassWriter.TYPE[opcode]) {
case ClassWriter.NOARG_INSN:
mv.visitInsn(opcode);
v += 1;
break;
case ClassWriter.IMPLVAR_INSN:
if (opcode > Opcodes.ISTORE) {
opcode -= 59; // ISTORE_0
mv.visitVarInsn(Opcodes.ISTORE + (opcode > > 2),
opcode & 0x3);
} else {
opcode -= 26; // ILOAD_0
mv.visitVarInsn(Opcodes.ILOAD + (opcode > > 2),
opcode & 0x3);
}
v += 1;
break;
case ClassWriter.LABEL_INSN:
mv.visitJumpInsn(opcode, labels[w
+ readShort(v + 1)]);
v += 3;
break;
case ClassWriter.LABELW_INSN:
mv.visitJumpInsn(opcode - 33, labels[w
+ readInt(v + 1)]);
v += 5;
break;
case ClassWriter.WIDE_INSN:
opcode = b[v + 1] & 0xFF;
if (opcode == Opcodes.IINC) {
mv.visitIincInsn(readUnsignedShort(v + 2),
readShort(v + 4));
v += 6;
} else {
mv.visitVarInsn(opcode,
readUnsignedShort(v + 2));
v += 4;
}
break;
case ClassWriter.TABL_INSN:
// skips 0 to 3 padding bytes
v = v + 4 - (w & 3);
// reads instruction
label = w + readInt(v);
int min = readInt(v + 4);
int max = readInt(v + 8);
v += 12;
Label[] table = new Label[max - min + 1];
for (j = 0; j < table.length; ++j) {
table[j] = labels[w + readInt(v)];
v += 4;
}
mv.visitTableSwitchInsn(min,
max,
labels[label],
table);
break;
case ClassWriter.LOOK_INSN:
// skips 0 to 3 padding bytes
v = v + 4 - (w & 3);
// reads instruction
label = w + readInt(v);
j = readInt(v + 4);
v += 8;
int[] keys = new int[j];
Label[] values = new Label[j];
for (j = 0; j < keys.length; ++j) {
keys[j] = readInt(v);
values[j] = labels[w + readInt(v + 4)];
v += 8;
}
mv.visitLookupSwitchInsn(labels[label],
keys,
values);
break;
case ClassWriter.VAR_INSN:
mv.visitVarInsn(opcode, b[v + 1] & 0xFF);
v += 2;
break;
case ClassWriter.SBYTE_INSN:
mv.visitIntInsn(opcode, b[v + 1]);
v += 2;
break;
case ClassWriter.SHORT_INSN:
mv.visitIntInsn(opcode, readShort(v + 1));
v += 3;
break;
case ClassWriter.LDC_INSN:
mv.visitLdcInsn(readConst(b[v + 1] & 0xFF, c));
v += 2;
break;
case ClassWriter.LDCW_INSN:
mv.visitLdcInsn(readConst(readUnsignedShort(v + 1),
c));
v += 3;
break;
case ClassWriter.FIELDORMETH_INSN:
case ClassWriter.ITFMETH_INSN:
int cpIndex = items[readUnsignedShort(v + 1)];
String iowner = readClass(cpIndex, c);
cpIndex = items[readUnsignedShort(cpIndex + 2)];
String iname = readUTF8(cpIndex, c);
String idesc = readUTF8(cpIndex + 2, c);
if (opcode < Opcodes.INVOKEVIRTUAL) {
mv.visitFieldInsn(opcode, iowner, iname, idesc);
} else {
mv.visitMethodInsn(opcode, iowner, iname, idesc);
}
if (opcode == Opcodes.INVOKEINTERFACE) {
v += 5;
} else {
v += 3;
}
break;
case ClassWriter.TYPE_INSN:
mv.visitTypeInsn(opcode, readClass(v + 1, c));
v += 3;
break;
case ClassWriter.IINC_INSN:
mv.visitIincInsn(b[v + 1] & 0xFF, b[v + 2]);
v += 3;
break;
// case MANA_INSN:
default:
mv.visitMultiANewArrayInsn(readClass(v + 1, c),
b[v + 3] & 0xFF);
v += 4;
break;
}
}
l = labels[codeEnd - codeStart];
if (l != null) {
mv.visitLabel(l);
}
// visits the local variable tables
if (!skipDebug && varTable != 0) {
int[] typeTable = null;
if (varTypeTable != 0) {
k = readUnsignedShort(varTypeTable) * 3;
w = varTypeTable + 2;
typeTable = new int[k];
while (k > 0) {
typeTable[--k] = w + 6; // signature
typeTable[--k] = readUnsignedShort(w + 8); // index
typeTable[--k] = readUnsignedShort(w); // start
w += 10;
}
}
k = readUnsignedShort(varTable);
w = varTable + 2;
for (; k > 0; --k) {
int start = readUnsignedShort(w);
int length = readUnsignedShort(w + 2);
int index = readUnsignedShort(w + 8);
String vsignature = null;
if (typeTable != null) {
for (int a = 0; a < typeTable.length; a += 3) {
if (typeTable[a] == start
&& typeTable[a + 1] == index)
{
vsignature = readUTF8(typeTable[a + 2], c);
break;
}
}
}
mv.visitLocalVariable(readUTF8(w + 4, c),
readUTF8(w + 6, c),
vsignature,
labels[start],
labels[start + length],
index);
w += 10;
}
}
// visits the other attributes
while (cattrs != null) {
attr = cattrs.next;
cattrs.next = null;
mv.visitAttribute(cattrs);
cattrs = attr;
}
// visits the max stack and max locals values
mv.visitMaxs(maxStack, maxLocals);
}
if (mv != null) {
mv.visitEnd();
}
}
// visits the end of the class
classVisitor.visitEnd();
}
Makes the given visitor visit the Java class of this ClassReader .
This class is the one specified in the constructor (see
ClassReader ). | org.objectweb.asm.ClassReader
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