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com.zving.framework.thirdparty.asm.MethodWriter Maven / Gradle / Ivy
package com.zving.framework.thirdparty.asm;
// fix
class MethodWriter extends MethodVisitor {
MethodWriter(ClassWriter cw, int access, String name, String desc, String signature, String exceptions[], boolean computeMaxs, boolean computeFrames) {
super(0x40000);
code = new ByteVector();
if (cw.firstMethod == null)
cw.firstMethod = this;
else
cw.lastMethod.mv = this;
cw.lastMethod = this;
this.cw = cw;
this.access = access;
if ("".equals(name))
this.access |= 0x80000;
this.name = cw.newUTF8(name);
this.desc = cw.newUTF8(desc);
descriptor = desc;
this.signature = signature;
if (exceptions != null && exceptions.length > 0) {
exceptionCount = exceptions.length;
this.exceptions = new int[exceptionCount];
for (int i = 0; i < exceptionCount; i++)
this.exceptions[i] = cw.newClass(exceptions[i]);
}
compute = computeFrames ? 0 : computeMaxs ? 1 : 2;
if (computeMaxs || computeFrames) {
int size = Type.getArgumentsAndReturnSizes(descriptor) >> 2;
if ((access & 8) != 0)
size--;
maxLocals = size;
currentLocals = size;
labels = new Label();
labels.status |= 8;
visitLabel(labels);
}
}
public AnnotationVisitor visitAnnotationDefault() {
annd = new ByteVector();
return new AnnotationWriter(cw, false, annd, null, 0);
}
public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
ByteVector bv = new ByteVector();
bv.putShort(cw.newUTF8(desc)).putShort(0);
AnnotationWriter aw = new AnnotationWriter(cw, true, bv, bv, 2);
if (visible) {
aw.next = anns;
anns = aw;
} else {
aw.next = ianns;
ianns = aw;
}
return aw;
}
public AnnotationVisitor visitParameterAnnotation(int parameter, String desc, boolean visible) {
ByteVector bv = new ByteVector();
if ("Ljava/lang/Synthetic;".equals(desc)) {
synthetics = Math.max(synthetics, parameter + 1);
return new AnnotationWriter(cw, false, bv, null, 0);
}
bv.putShort(cw.newUTF8(desc)).putShort(0);
AnnotationWriter aw = new AnnotationWriter(cw, true, bv, bv, 2);
if (visible) {
if (panns == null)
panns = new AnnotationWriter[Type.getArgumentTypes(descriptor).length];
aw.next = panns[parameter];
panns[parameter] = aw;
} else {
if (ipanns == null)
ipanns = new AnnotationWriter[Type.getArgumentTypes(descriptor).length];
aw.next = ipanns[parameter];
ipanns[parameter] = aw;
}
return aw;
}
public void visitAttribute(Attribute attr) {
if (attr.isCodeAttribute()) {
attr.next = cattrs;
cattrs = attr;
} else {
attr.next = attrs;
attrs = attr;
}
}
public void visitCode() {
}
public void visitFrame(int type, int nLocal, Object local[], int nStack, Object stack[]) {
if (compute == 0)
return;
if (type == -1) {
if (previousFrame == null)
visitImplicitFirstFrame();
currentLocals = nLocal;
int frameIndex = startFrame(code.length, nLocal, nStack);
for (int i = 0; i < nLocal; i++)
if (local[i] instanceof String)
frame[frameIndex++] = 0x1700000 | cw.addType((String) local[i]);
else if (local[i] instanceof Integer)
frame[frameIndex++] = ((Integer) local[i]).intValue();
else
frame[frameIndex++] = 0x1800000 | cw.addUninitializedType("", ((Label) local[i]).position);
for (int i = 0; i < nStack; i++)
if (stack[i] instanceof String)
frame[frameIndex++] = 0x1700000 | cw.addType((String) stack[i]);
else if (stack[i] instanceof Integer)
frame[frameIndex++] = ((Integer) stack[i]).intValue();
else
frame[frameIndex++] = 0x1800000 | cw.addUninitializedType("", ((Label) stack[i]).position);
endFrame();
} else {
int delta;
if (stackMap == null) {
stackMap = new ByteVector();
delta = code.length;
} else {
delta = code.length - previousFrameOffset - 1;
if (delta < 0)
if (type == 3)
return;
else
throw new IllegalStateException();
}
switch (type) {
default:
break;
case 0: // '\0'
currentLocals = nLocal;
stackMap.putByte(255).putShort(delta).putShort(nLocal);
for (int i = 0; i < nLocal; i++)
writeFrameType(local[i]);
stackMap.putShort(nStack);
for (int i = 0; i < nStack; i++)
writeFrameType(stack[i]);
break;
case 1: // '\001'
currentLocals += nLocal;
stackMap.putByte(251 + nLocal).putShort(delta);
for (int i = 0; i < nLocal; i++)
writeFrameType(local[i]);
break;
case 2: // '\002'
currentLocals -= nLocal;
stackMap.putByte(251 - nLocal).putShort(delta);
break;
case 3: // '\003'
if (delta < 64)
stackMap.putByte(delta);
else
stackMap.putByte(251).putShort(delta);
break;
case 4: // '\004'
if (delta < 64)
stackMap.putByte(64 + delta);
else
stackMap.putByte(247).putShort(delta);
writeFrameType(stack[0]);
break;
}
previousFrameOffset = code.length;
frameCount++;
}
maxStack = Math.max(maxStack, nStack);
maxLocals = Math.max(maxLocals, currentLocals);
}
public void visitInsn(int opcode) {
code.putByte(opcode);
if (currentBlock != null) {
if (compute == 0) {
currentBlock.frame.execute(opcode, 0, null, null);
} else {
int size = stackSize + Frame.SIZE[opcode];
if (size > maxStackSize)
maxStackSize = size;
stackSize = size;
}
if (opcode >= 172 && opcode <= 177 || opcode == 191)
noSuccessor();
}
}
public void visitIntInsn(int opcode, int operand) {
if (currentBlock != null)
if (compute == 0)
currentBlock.frame.execute(opcode, operand, null, null);
else if (opcode != 188) {
int size = stackSize + 1;
if (size > maxStackSize)
maxStackSize = size;
stackSize = size;
}
if (opcode == 17)
code.put12(opcode, operand);
else
code.put11(opcode, operand);
}
public void visitVarInsn(int opcode, int var) {
if (currentBlock != null)
if (compute == 0)
currentBlock.frame.execute(opcode, var, null, null);
else if (opcode == 169) {
currentBlock.status |= 0x100;
currentBlock.inputStackTop = stackSize;
noSuccessor();
} else {
int size = stackSize + Frame.SIZE[opcode];
if (size > maxStackSize)
maxStackSize = size;
stackSize = size;
}
if (compute != 2) {
int n;
if (opcode == 22 || opcode == 24 || opcode == 55 || opcode == 57)
n = var + 2;
else
n = var + 1;
if (n > maxLocals)
maxLocals = n;
}
if (var < 4 && opcode != 169) {
int opt;
if (opcode < 54)
opt = 26 + (opcode - 21 << 2) + var;
else
opt = 59 + (opcode - 54 << 2) + var;
code.putByte(opt);
} else if (var >= 256)
code.putByte(196).put12(opcode, var);
else
code.put11(opcode, var);
if (opcode >= 54 && compute == 0 && handlerCount > 0)
visitLabel(new Label());
}
public void visitTypeInsn(int opcode, String type) {
Item i = cw.newClassItem(type);
if (currentBlock != null)
if (compute == 0)
currentBlock.frame.execute(opcode, code.length, cw, i);
else if (opcode == 187) {
int size = stackSize + 1;
if (size > maxStackSize)
maxStackSize = size;
stackSize = size;
}
code.put12(opcode, i.index);
}
public void visitFieldInsn(int opcode, String owner, String name, String desc) {
Item i = cw.newFieldItem(owner, name, desc);
if (currentBlock != null)
if (compute == 0) {
currentBlock.frame.execute(opcode, 0, cw, i);
} else {
char c = desc.charAt(0);
int size;
switch (opcode) {
case 178:
size = stackSize + (c != 'D' && c != 'J' ? 1 : 2);
break;
case 179:
size = stackSize + (c != 'D' && c != 'J' ? -1 : -2);
break;
case 180:
size = stackSize + (c != 'D' && c != 'J' ? 0 : 1);
break;
default:
size = stackSize + (c != 'D' && c != 'J' ? -2 : -3);
break;
}
if (size > maxStackSize)
maxStackSize = size;
stackSize = size;
}
code.put12(opcode, i.index);
}
public void visitMethodInsn(int opcode, String owner, String name, String desc) {
boolean itf = opcode == 185;
Item i = cw.newMethodItem(owner, name, desc, itf);
int argSize = i.intVal;
if (currentBlock != null)
if (compute == 0) {
currentBlock.frame.execute(opcode, 0, cw, i);
} else {
if (argSize == 0) {
argSize = Type.getArgumentsAndReturnSizes(desc);
i.intVal = argSize;
}
int size;
if (opcode == 184)
size = (stackSize - (argSize >> 2)) + (argSize & 3) + 1;
else
size = (stackSize - (argSize >> 2)) + (argSize & 3);
if (size > maxStackSize)
maxStackSize = size;
stackSize = size;
}
if (itf) {
if (argSize == 0) {
argSize = Type.getArgumentsAndReturnSizes(desc);
i.intVal = argSize;
}
code.put12(185, i.index).put11(argSize >> 2, 0);
} else {
code.put12(opcode, i.index);
}
}
public void visitInvokeDynamicInsn(String name, String desc, Handle bsm, Object bsmArgs[]) {
Item i = cw.newInvokeDynamicItem(name, desc, bsm, bsmArgs);
int argSize = i.intVal;
if (currentBlock != null)
if (compute == 0) {
currentBlock.frame.execute(186, 0, cw, i);
} else {
if (argSize == 0) {
argSize = Type.getArgumentsAndReturnSizes(desc);
i.intVal = argSize;
}
int size = (stackSize - (argSize >> 2)) + (argSize & 3) + 1;
if (size > maxStackSize)
maxStackSize = size;
stackSize = size;
}
code.put12(186, i.index);
code.putShort(0);
}
public void visitJumpInsn(int opcode, Label label) {
Label nextInsn = null;
if (currentBlock != null)
if (compute == 0) {
currentBlock.frame.execute(opcode, 0, null, null);
label.getFirst().status |= 0x10;
addSuccessor(0, label);
if (opcode != 167)
nextInsn = new Label();
} else if (opcode == 168) {
if ((label.status & 0x200) == 0) {
label.status |= 0x200;
subroutines++;
}
currentBlock.status |= 0x80;
addSuccessor(stackSize + 1, label);
nextInsn = new Label();
} else {
stackSize += Frame.SIZE[opcode];
addSuccessor(stackSize, label);
}
if ((label.status & 2) != 0 && label.position - code.length < -32768) {
if (opcode == 167)
code.putByte(200);
else if (opcode == 168) {
code.putByte(201);
} else {
if (nextInsn != null)
nextInsn.status |= 0x10;
code.putByte(opcode > 166 ? opcode ^ 1 : (opcode + 1 ^ 1) - 1);
code.putShort(8);
code.putByte(200);
}
label.put(this, code, code.length - 1, true);
} else {
code.putByte(opcode);
label.put(this, code, code.length - 1, false);
}
if (currentBlock != null) {
if (nextInsn != null)
visitLabel(nextInsn);
if (opcode == 167)
noSuccessor();
}
}
public void visitLabel(Label label) {
resize |= label.resolve(this, code.length, code.data);
if ((label.status & 1) != 0)
return;
if (compute == 0) {
if (currentBlock != null) {
if (label.position == currentBlock.position) {
currentBlock.status |= label.status & 0x10;
label.frame = currentBlock.frame;
return;
}
addSuccessor(0, label);
}
currentBlock = label;
if (label.frame == null) {
label.frame = new Frame();
label.frame.owner = label;
}
if (previousBlock != null) {
if (label.position == previousBlock.position) {
previousBlock.status |= label.status & 0x10;
label.frame = previousBlock.frame;
currentBlock = previousBlock;
return;
}
previousBlock.successor = label;
}
previousBlock = label;
} else if (compute == 1) {
if (currentBlock != null) {
currentBlock.outputStackMax = maxStackSize;
addSuccessor(stackSize, label);
}
currentBlock = label;
stackSize = 0;
maxStackSize = 0;
if (previousBlock != null)
previousBlock.successor = label;
previousBlock = label;
}
}
public void visitLdcInsn(Object cst) {
Item i = cw.newConstItem(cst);
if (currentBlock != null)
if (compute == 0) {
currentBlock.frame.execute(18, 0, cw, i);
} else {
int size;
if (i.type == 5 || i.type == 6)
size = stackSize + 2;
else
size = stackSize + 1;
if (size > maxStackSize)
maxStackSize = size;
stackSize = size;
}
int index = i.index;
if (i.type == 5 || i.type == 6)
code.put12(20, index);
else if (index >= 256)
code.put12(19, index);
else
code.put11(18, index);
}
public void visitIincInsn(int var, int increment) {
if (currentBlock != null && compute == 0)
currentBlock.frame.execute(132, var, null, null);
if (compute != 2) {
int n = var + 1;
if (n > maxLocals)
maxLocals = n;
}
if (var > 255 || increment > 127 || increment < -128)
code.putByte(196).put12(132, var).putShort(increment);
else
code.putByte(132).put11(var, increment);
}
public void visitTableSwitchInsn(int min, int max, Label dflt, Label labels[]) {
int source = code.length;
code.putByte(170);
code.putByteArray(null, 0, (4 - code.length % 4) % 4);
dflt.put(this, code, source, true);
code.putInt(min).putInt(max);
for (int i = 0; i < labels.length; i++)
labels[i].put(this, code, source, true);
visitSwitchInsn(dflt, labels);
}
public void visitLookupSwitchInsn(Label dflt, int keys[], Label labels[]) {
int source = code.length;
code.putByte(171);
code.putByteArray(null, 0, (4 - code.length % 4) % 4);
dflt.put(this, code, source, true);
code.putInt(labels.length);
for (int i = 0; i < labels.length; i++) {
code.putInt(keys[i]);
labels[i].put(this, code, source, true);
}
visitSwitchInsn(dflt, labels);
}
private void visitSwitchInsn(Label dflt, Label labels[]) {
if (currentBlock != null) {
if (compute == 0) {
currentBlock.frame.execute(171, 0, null, null);
addSuccessor(0, dflt);
dflt.getFirst().status |= 0x10;
for (int i = 0; i < labels.length; i++) {
addSuccessor(0, labels[i]);
labels[i].getFirst().status |= 0x10;
}
} else {
stackSize--;
addSuccessor(stackSize, dflt);
for (int i = 0; i < labels.length; i++)
addSuccessor(stackSize, labels[i]);
}
noSuccessor();
}
}
public void visitMultiANewArrayInsn(String desc, int dims) {
Item i = cw.newClassItem(desc);
if (currentBlock != null)
if (compute == 0)
currentBlock.frame.execute(197, dims, cw, i);
else
stackSize += 1 - dims;
code.put12(197, i.index).putByte(dims);
}
public void visitTryCatchBlock(Label start, Label end, Label handler, String type) {
handlerCount++;
Handler h = new Handler();
h.start = start;
h.end = end;
h.handler = handler;
h.desc = type;
h.type = type == null ? 0 : cw.newClass(type);
if (lastHandler == null)
firstHandler = h;
else
lastHandler.next = h;
lastHandler = h;
}
public void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index) {
if (signature != null) {
if (localVarType == null)
localVarType = new ByteVector();
localVarTypeCount++;
localVarType.putShort(start.position).putShort(end.position - start.position).putShort(cw.newUTF8(name)).putShort(cw.newUTF8(signature)).putShort(index);
}
if (localVar == null)
localVar = new ByteVector();
localVarCount++;
localVar.putShort(start.position).putShort(end.position - start.position).putShort(cw.newUTF8(name)).putShort(cw.newUTF8(desc)).putShort(index);
if (compute != 2) {
char c = desc.charAt(0);
int n = index + (c != 'J' && c != 'D' ? 1 : 2);
if (n > maxLocals)
maxLocals = n;
}
}
public void visitLineNumber(int line, Label start) {
if (lineNumber == null)
lineNumber = new ByteVector();
lineNumberCount++;
lineNumber.putShort(start.position);
lineNumber.putShort(line);
}
public void visitMaxs(int maxStack, int maxLocals) {
if (compute == 0) {
Handler handler;
for (handler = firstHandler; handler != null; handler = handler.next) {
Label l = handler.start.getFirst();
Label h = handler.handler.getFirst();
Label e = handler.end.getFirst();
String t = handler.desc != null ? handler.desc : "java/lang/Throwable";
int kind = 0x1700000 | cw.addType(t);
h.status |= 0x10;
for (; l != e; l = l.successor) {
Edge b = new Edge();
b.info = kind;
b.successor = h;
b.next = l.successors;
l.successors = b;
}
}
Frame f = labels.frame;
Type args[] = Type.getArgumentTypes(descriptor);
f.initInputFrame(cw, access, args, this.maxLocals);
visitFrame(f);
int max = 0;
for (Label changed = labels; changed != null;) {
Label l = changed;
changed = changed.next;
l.next = null;
f = l.frame;
if ((l.status & 0x10) != 0)
l.status |= 0x20;
l.status |= 0x40;
int blockMax = f.inputStack.length + l.outputStackMax;
if (blockMax > max)
max = blockMax;
for (Edge e = l.successors; e != null; e = e.next) {
Label n = e.successor.getFirst();
boolean change = f.merge(cw, n.frame, e.info);
if (change && n.next == null) {
n.next = changed;
changed = n;
}
}
}
for (Label l = labels; l != null; l = l.successor) {
f = l.frame;
if ((l.status & 0x20) != 0)
visitFrame(f);
if ((l.status & 0x40) == 0) {
Label k = l.successor;
int start = l.position;
int end = (k != null ? k.position : code.length) - 1;
if (end >= start) {
max = Math.max(max, 1);
for (int i = start; i < end; i++)
code.data[i] = 0;
code.data[end] = -65;
int frameIndex = startFrame(start, 0, 1);
frame[frameIndex] = 0x1700000 | cw.addType("java/lang/Throwable");
endFrame();
firstHandler = Handler.remove(firstHandler, l, k);
}
}
}
handler = firstHandler;
handlerCount = 0;
for (; handler != null; handler = handler.next)
handlerCount++;
this.maxStack = max;
} else if (compute == 1) {
for (Handler handler = firstHandler; handler != null; handler = handler.next) {
Label l = handler.start;
Label h = handler.handler;
for (Label e = handler.end; l != e; l = l.successor) {
Edge b = new Edge();
b.info = 0x7fffffff;
b.successor = h;
if ((l.status & 0x80) == 0) {
b.next = l.successors;
l.successors = b;
} else {
b.next = l.successors.next.next;
l.successors.next.next = b;
}
}
}
if (subroutines > 0) {
int id = 0;
labels.visitSubroutine(null, 1L, subroutines);
for (Label l = labels; l != null; l = l.successor)
if ((l.status & 0x80) != 0) {
Label subroutine = l.successors.next.successor;
if ((subroutine.status & 0x400) == 0) {
id++;
subroutine.visitSubroutine(null, (long) id / 32L << 32 | 1L << id % 32, subroutines);
}
}
for (Label l = labels; l != null; l = l.successor)
if ((l.status & 0x80) != 0) {
for (Label L = labels; L != null; L = L.successor)
L.status &= 0xfffff7ff;
Label subroutine = l.successors.next.successor;
subroutine.visitSubroutine(l, 0L, subroutines);
}
}
int max = 0;
for (Label stack = labels; stack != null;) {
Label l = stack;
stack = stack.next;
int start = l.inputStackTop;
int blockMax = start + l.outputStackMax;
if (blockMax > max)
max = blockMax;
Edge b = l.successors;
if ((l.status & 0x80) != 0)
b = b.next;
for (; b != null; b = b.next) {
l = b.successor;
if ((l.status & 8) == 0) {
l.inputStackTop = b.info != 0x7fffffff ? start + b.info : 1;
l.status |= 8;
l.next = stack;
stack = l;
}
}
}
this.maxStack = Math.max(maxStack, max);
} else {
this.maxStack = maxStack;
this.maxLocals = maxLocals;
}
}
public void visitEnd() {
}
private void addSuccessor(int info, Label successor) {
Edge b = new Edge();
b.info = info;
b.successor = successor;
b.next = currentBlock.successors;
currentBlock.successors = b;
}
private void noSuccessor() {
if (compute == 0) {
Label l = new Label();
l.frame = new Frame();
l.frame.owner = l;
l.resolve(this, code.length, code.data);
previousBlock.successor = l;
previousBlock = l;
} else {
currentBlock.outputStackMax = maxStackSize;
}
currentBlock = null;
}
private void visitFrame(Frame f) {
int nTop = 0;
int nLocal = 0;
int nStack = 0;
int locals[] = f.inputLocals;
int stacks[] = f.inputStack;
int i;
for (i = 0; i < locals.length; i++) {
int t = locals[i];
if (t == 0x1000000) {
nTop++;
} else {
nLocal += nTop + 1;
nTop = 0;
}
if (t == 0x1000004 || t == 0x1000003)
i++;
}
for (i = 0; i < stacks.length; i++) {
int t = stacks[i];
nStack++;
if (t == 0x1000004 || t == 0x1000003)
i++;
}
int frameIndex = startFrame(f.owner.position, nLocal, nStack);
i = 0;
for (; nLocal > 0; nLocal--) {
int t = locals[i];
frame[frameIndex++] = t;
if (t == 0x1000004 || t == 0x1000003)
i++;
i++;
}
for (i = 0; i < stacks.length; i++) {
int t = stacks[i];
frame[frameIndex++] = t;
if (t == 0x1000004 || t == 0x1000003)
i++;
}
endFrame();
}
private void visitImplicitFirstFrame() {
int frameIndex = startFrame(0, descriptor.length() + 1, 0);
if ((access & 8) == 0)
if ((access & 0x80000) == 0)
frame[frameIndex++] = 0x1700000 | cw.addType(cw.thisName);
else
frame[frameIndex++] = 6;
int i = 1;
do {
int j = i;
switch (descriptor.charAt(i++)) {
case 66: // 'B'
case 67: // 'C'
case 73: // 'I'
case 83: // 'S'
case 90: // 'Z'
frame[frameIndex++] = 1;
break;
case 70: // 'F'
frame[frameIndex++] = 2;
break;
case 74: // 'J'
frame[frameIndex++] = 4;
break;
case 68: // 'D'
frame[frameIndex++] = 3;
break;
case 91: // '['
for (; descriptor.charAt(i) == '['; i++)
;
if (descriptor.charAt(i) == 'L')
for (i++; descriptor.charAt(i) != ';'; i++)
;
frame[frameIndex++] = 0x1700000 | cw.addType(descriptor.substring(j, ++i));
break;
case 76: // 'L'
for (; descriptor.charAt(i) != ';'; i++)
;
frame[frameIndex++] = 0x1700000 | cw.addType(descriptor.substring(j + 1, i++));
break;
default:
frame[1] = frameIndex - 3;
endFrame();
return;
}
} while (true);
}
private int startFrame(int offset, int nLocal, int nStack) {
int n = 3 + nLocal + nStack;
if (frame == null || frame.length < n)
frame = new int[n];
frame[0] = offset;
frame[1] = nLocal;
frame[2] = nStack;
return 3;
}
private void endFrame() {
if (previousFrame != null) {
if (stackMap == null)
stackMap = new ByteVector();
writeFrame();
frameCount++;
}
previousFrame = frame;
frame = null;
}
private void writeFrame() {
int clocalsSize = frame[1];
int cstackSize = frame[2];
if ((cw.version & 0xffff) < 50) {
stackMap.putShort(frame[0]).putShort(clocalsSize);
writeFrameTypes(3, 3 + clocalsSize);
stackMap.putShort(cstackSize);
writeFrameTypes(3 + clocalsSize, 3 + clocalsSize + cstackSize);
return;
}
int localsSize = previousFrame[1];
int type = 255;
int k = 0;
int delta;
if (frameCount == 0)
delta = frame[0];
else
delta = frame[0] - previousFrame[0] - 1;
if (cstackSize == 0) {
k = clocalsSize - localsSize;
switch (k) {
case -3:
case -2:
case -1:
type = 248;
localsSize = clocalsSize;
break;
case 0: // '\0'
type = delta >= 64 ? 251 : 0;
break;
case 1: // '\001'
case 2: // '\002'
case 3: // '\003'
type = 252;
break;
}
} else if (clocalsSize == localsSize && cstackSize == 1)
type = delta >= 63 ? 247 : 64;
if (type != 255) {
int l = 3;
for (int j = 0; j < localsSize; j++) {
if (frame[l] != previousFrame[l]) {
type = 255;
break;
}
l++;
}
}
switch (type) {
case 0: // '\0'
stackMap.putByte(delta);
break;
case 64: // '@'
stackMap.putByte(64 + delta);
writeFrameTypes(3 + clocalsSize, 4 + clocalsSize);
break;
case 247:
stackMap.putByte(247).putShort(delta);
writeFrameTypes(3 + clocalsSize, 4 + clocalsSize);
break;
case 251:
stackMap.putByte(251).putShort(delta);
break;
case 248:
stackMap.putByte(251 + k).putShort(delta);
break;
case 252:
stackMap.putByte(251 + k).putShort(delta);
writeFrameTypes(3 + localsSize, 3 + clocalsSize);
break;
default:
stackMap.putByte(255).putShort(delta).putShort(clocalsSize);
writeFrameTypes(3, 3 + clocalsSize);
stackMap.putShort(cstackSize);
writeFrameTypes(3 + clocalsSize, 3 + clocalsSize + cstackSize);
break;
}
}
private void writeFrameTypes(int start, int end) {
for (int i = start; i < end; i++) {
int t = frame[i];
int d = t & 0xf0000000;
if (d == 0) {
int v = t & 0xfffff;
switch (t & 0xff00000) {
case 24117248:
stackMap.putByte(7).putShort(cw.newClass(cw.typeTable[v].strVal1));
break;
case 25165824:
stackMap.putByte(8).putShort(cw.typeTable[v].intVal);
break;
default:
stackMap.putByte(v);
break;
}
} else {
StringBuffer buf = new StringBuffer();
for (d >>= 28; d-- > 0;)
buf.append('[');
if ((t & 0xff00000) == 0x1700000) {
buf.append('L');
buf.append(cw.typeTable[t & 0xfffff].strVal1);
buf.append(';');
} else {
switch (t & 0xf) {
case 1: // '\001'
buf.append('I');
break;
case 2: // '\002'
buf.append('F');
break;
case 3: // '\003'
buf.append('D');
break;
case 9: // '\t'
buf.append('Z');
break;
case 10: // '\n'
buf.append('B');
break;
case 11: // '\013'
buf.append('C');
break;
case 12: // '\f'
buf.append('S');
break;
case 4: // '\004'
case 5: // '\005'
case 6: // '\006'
case 7: // '\007'
case 8: // '\b'
default:
buf.append('J');
break;
}
}
stackMap.putByte(7).putShort(cw.newClass(buf.toString()));
}
}
}
private void writeFrameType(Object type) {
if (type instanceof String)
stackMap.putByte(7).putShort(cw.newClass((String) type));
else if (type instanceof Integer)
stackMap.putByte(((Integer) type).intValue());
else
stackMap.putByte(8).putShort(((Label) type).position);
}
final int getSize() {
if (classReaderOffset != 0)
return 6 + classReaderLength;
if (resize)
resizeInstructions();
int size = 8;
if (code.length > 0) {
if (code.length > 0x10000)
throw new RuntimeException("Method code too large!");
cw.newUTF8("Code");
size += 18 + code.length + 8 * handlerCount;
if (localVar != null) {
cw.newUTF8("LocalVariableTable");
size += 8 + localVar.length;
}
if (localVarType != null) {
cw.newUTF8("LocalVariableTypeTable");
size += 8 + localVarType.length;
}
if (lineNumber != null) {
cw.newUTF8("LineNumberTable");
size += 8 + lineNumber.length;
}
if (stackMap != null) {
boolean zip = (cw.version & 0xffff) >= 50;
cw.newUTF8(zip ? "StackMapTable" : "StackMap");
size += 8 + stackMap.length;
}
if (cattrs != null)
size += cattrs.getSize(cw, code.data, code.length, maxStack, maxLocals);
}
if (exceptionCount > 0) {
cw.newUTF8("Exceptions");
size += 8 + 2 * exceptionCount;
}
if ((access & 0x1000) != 0 && ((cw.version & 0xffff) < 49 || (access & 0x40000) != 0)) {
cw.newUTF8("Synthetic");
size += 6;
}
if ((access & 0x20000) != 0) {
cw.newUTF8("Deprecated");
size += 6;
}
if (signature != null) {
cw.newUTF8("Signature");
cw.newUTF8(signature);
size += 8;
}
if (annd != null) {
cw.newUTF8("AnnotationDefault");
size += 6 + annd.length;
}
if (anns != null) {
cw.newUTF8("RuntimeVisibleAnnotations");
size += 8 + anns.getSize();
}
if (ianns != null) {
cw.newUTF8("RuntimeInvisibleAnnotations");
size += 8 + ianns.getSize();
}
if (panns != null) {
cw.newUTF8("RuntimeVisibleParameterAnnotations");
size += 7 + 2 * (panns.length - synthetics);
for (int i = panns.length - 1; i >= synthetics; i--)
size += panns[i] != null ? panns[i].getSize() : 0;
}
if (ipanns != null) {
cw.newUTF8("RuntimeInvisibleParameterAnnotations");
size += 7 + 2 * (ipanns.length - synthetics);
for (int i = ipanns.length - 1; i >= synthetics; i--)
size += ipanns[i] != null ? ipanns[i].getSize() : 0;
}
if (attrs != null)
size += attrs.getSize(cw, null, 0, -1, -1);
return size;
}
final void put(ByteVector out) {
int FACTOR = 64;
int mask = 0xe0000 | (access & 0x40000) / 64;
out.putShort(access & ~mask).putShort(name).putShort(desc);
if (classReaderOffset != 0) {
out.putByteArray(cw.cr.b, classReaderOffset, classReaderLength);
return;
}
int attributeCount = 0;
if (code.length > 0)
attributeCount++;
if (exceptionCount > 0)
attributeCount++;
if ((access & 0x1000) != 0 && ((cw.version & 0xffff) < 49 || (access & 0x40000) != 0))
attributeCount++;
if ((access & 0x20000) != 0)
attributeCount++;
if (signature != null)
attributeCount++;
if (annd != null)
attributeCount++;
if (anns != null)
attributeCount++;
if (ianns != null)
attributeCount++;
if (panns != null)
attributeCount++;
if (ipanns != null)
attributeCount++;
if (attrs != null)
attributeCount += attrs.getCount();
out.putShort(attributeCount);
if (code.length > 0) {
int size = 12 + code.length + 8 * handlerCount;
if (localVar != null)
size += 8 + localVar.length;
if (localVarType != null)
size += 8 + localVarType.length;
if (lineNumber != null)
size += 8 + lineNumber.length;
if (stackMap != null)
size += 8 + stackMap.length;
if (cattrs != null)
size += cattrs.getSize(cw, code.data, code.length, maxStack, maxLocals);
out.putShort(cw.newUTF8("Code")).putInt(size);
out.putShort(maxStack).putShort(maxLocals);
out.putInt(code.length).putByteArray(code.data, 0, code.length);
out.putShort(handlerCount);
if (handlerCount > 0) {
for (Handler h = firstHandler; h != null; h = h.next)
out.putShort(h.start.position).putShort(h.end.position).putShort(h.handler.position).putShort(h.type);
}
attributeCount = 0;
if (localVar != null)
attributeCount++;
if (localVarType != null)
attributeCount++;
if (lineNumber != null)
attributeCount++;
if (stackMap != null)
attributeCount++;
if (cattrs != null)
attributeCount += cattrs.getCount();
out.putShort(attributeCount);
if (localVar != null) {
out.putShort(cw.newUTF8("LocalVariableTable"));
out.putInt(localVar.length + 2).putShort(localVarCount);
out.putByteArray(localVar.data, 0, localVar.length);
}
if (localVarType != null) {
out.putShort(cw.newUTF8("LocalVariableTypeTable"));
out.putInt(localVarType.length + 2).putShort(localVarTypeCount);
out.putByteArray(localVarType.data, 0, localVarType.length);
}
if (lineNumber != null) {
out.putShort(cw.newUTF8("LineNumberTable"));
out.putInt(lineNumber.length + 2).putShort(lineNumberCount);
out.putByteArray(lineNumber.data, 0, lineNumber.length);
}
if (stackMap != null) {
boolean zip = (cw.version & 0xffff) >= 50;
out.putShort(cw.newUTF8(zip ? "StackMapTable" : "StackMap"));
out.putInt(stackMap.length + 2).putShort(frameCount);
out.putByteArray(stackMap.data, 0, stackMap.length);
}
if (cattrs != null)
cattrs.put(cw, code.data, code.length, maxLocals, maxStack, out);
}
if (exceptionCount > 0) {
out.putShort(cw.newUTF8("Exceptions")).putInt(2 * exceptionCount + 2);
out.putShort(exceptionCount);
for (int i = 0; i < exceptionCount; i++)
out.putShort(exceptions[i]);
}
if ((access & 0x1000) != 0 && ((cw.version & 0xffff) < 49 || (access & 0x40000) != 0))
out.putShort(cw.newUTF8("Synthetic")).putInt(0);
if ((access & 0x20000) != 0)
out.putShort(cw.newUTF8("Deprecated")).putInt(0);
if (signature != null)
out.putShort(cw.newUTF8("Signature")).putInt(2).putShort(cw.newUTF8(signature));
if (annd != null) {
out.putShort(cw.newUTF8("AnnotationDefault"));
out.putInt(annd.length);
out.putByteArray(annd.data, 0, annd.length);
}
if (anns != null) {
out.putShort(cw.newUTF8("RuntimeVisibleAnnotations"));
anns.put(out);
}
if (ianns != null) {
out.putShort(cw.newUTF8("RuntimeInvisibleAnnotations"));
ianns.put(out);
}
if (panns != null) {
out.putShort(cw.newUTF8("RuntimeVisibleParameterAnnotations"));
AnnotationWriter.put(panns, synthetics, out);
}
if (ipanns != null) {
out.putShort(cw.newUTF8("RuntimeInvisibleParameterAnnotations"));
AnnotationWriter.put(ipanns, synthetics, out);
}
if (attrs != null)
attrs.put(cw, null, 0, -1, -1, out);
}
private void resizeInstructions() {
byte b[] = code.data;
int allIndexes[] = new int[0];
int allSizes[] = new int[0];
boolean resize[] = new boolean[code.length];
int state = 3;
do {
if (state == 3)
state = 2;
for (int u = 0; u < b.length;) {
int opcode = b[u] & 0xff;
int insert = 0;
switch (ClassWriter.TYPE[opcode]) {
case 0: // '\0'
case 4: // '\004'
u++;
break;
case 9: // '\t'
int label;
if (opcode > 201) {
opcode = opcode >= 218 ? opcode - 20 : opcode - 49;
label = u + readUnsignedShort(b, u + 1);
} else {
label = u + readShort(b, u + 1);
}
int newOffset = getNewOffset(allIndexes, allSizes, u, label);
if ((newOffset < -32768 || newOffset > 32767) && !resize[u]) {
if (opcode == 167 || opcode == 168)
insert = 2;
else
insert = 5;
resize[u] = true;
}
u += 3;
break;
case 10: // '\n'
u += 5;
break;
case 14: // '\016'
if (state == 1) {
newOffset = getNewOffset(allIndexes, allSizes, 0, u);
insert = -(newOffset & 3);
} else if (!resize[u]) {
insert = u & 3;
resize[u] = true;
}
u = (u + 4) - (u & 3);
u += 4 * ((readInt(b, u + 8) - readInt(b, u + 4)) + 1) + 12;
break;
case 15: // '\017'
if (state == 1) {
newOffset = getNewOffset(allIndexes, allSizes, 0, u);
insert = -(newOffset & 3);
} else if (!resize[u]) {
insert = u & 3;
resize[u] = true;
}
u = (u + 4) - (u & 3);
u += 8 * readInt(b, u + 4) + 8;
break;
case 17: // '\021'
opcode = b[u + 1] & 0xff;
if (opcode == 132)
u += 6;
else
u += 4;
break;
case 1: // '\001'
case 3: // '\003'
case 11: // '\013'
u += 2;
break;
case 2: // '\002'
case 5: // '\005'
case 6: // '\006'
case 12: // '\f'
case 13: // '\r'
u += 3;
break;
case 7: // '\007'
case 8: // '\b'
u += 5;
break;
case 16: // '\020'
default:
u += 4;
break;
}
if (insert != 0) {
int newIndexes[] = new int[allIndexes.length + 1];
int newSizes[] = new int[allSizes.length + 1];
System.arraycopy(allIndexes, 0, newIndexes, 0, allIndexes.length);
System.arraycopy(allSizes, 0, newSizes, 0, allSizes.length);
newIndexes[allIndexes.length] = u;
newSizes[allSizes.length] = insert;
allIndexes = newIndexes;
allSizes = newSizes;
if (insert > 0)
state = 3;
}
}
if (state < 3)
state--;
} while (state != 0);
ByteVector newCode = new ByteVector(code.length);
for (int u = 0; u < code.length;) {
int opcode = b[u] & 0xff;
switch (ClassWriter.TYPE[opcode]) {
case 0: // '\0'
case 4: // '\004'
{
newCode.putByte(opcode);
u++;
break;
}
case 9: // '\t'
{
int label;
if (opcode > 201) {
opcode = opcode >= 218 ? opcode - 20 : opcode - 49;
label = u + readUnsignedShort(b, u + 1);
} else {
label = u + readShort(b, u + 1);
}
int newOffset = getNewOffset(allIndexes, allSizes, u, label);
if (resize[u]) {
if (opcode == 167)
newCode.putByte(200);
else if (opcode == 168) {
newCode.putByte(201);
} else {
newCode.putByte(opcode > 166 ? opcode ^ 1 : (opcode + 1 ^ 1) - 1);
newCode.putShort(8);
newCode.putByte(200);
newOffset -= 3;
}
newCode.putInt(newOffset);
} else {
newCode.putByte(opcode);
newCode.putShort(newOffset);
}
u += 3;
break;
}
case 10: // '\n'
{
int label = u + readInt(b, u + 1);
int newOffset = getNewOffset(allIndexes, allSizes, u, label);
newCode.putByte(opcode);
newCode.putInt(newOffset);
u += 5;
break;
}
case 14: // '\016'
{
int v = u;
u = (u + 4) - (v & 3);
newCode.putByte(170);
newCode.putByteArray(null, 0, (4 - newCode.length % 4) % 4);
int label = v + readInt(b, u);
u += 4;
int newOffset = getNewOffset(allIndexes, allSizes, v, label);
newCode.putInt(newOffset);
int j = readInt(b, u);
u += 4;
newCode.putInt(j);
j = (readInt(b, u) - j) + 1;
u += 4;
newCode.putInt(readInt(b, u - 4));
for (; j > 0; j--) {
label = v + readInt(b, u);
u += 4;
newOffset = getNewOffset(allIndexes, allSizes, v, label);
newCode.putInt(newOffset);
}
break;
}
case 15: // '\017'
{
int v = u;
u = (u + 4) - (v & 3);
newCode.putByte(171);
newCode.putByteArray(null, 0, (4 - newCode.length % 4) % 4);
int label = v + readInt(b, u);
u += 4;
int newOffset = getNewOffset(allIndexes, allSizes, v, label);
newCode.putInt(newOffset);
int j = readInt(b, u);
u += 4;
newCode.putInt(j);
for (; j > 0; j--) {
newCode.putInt(readInt(b, u));
u += 4;
label = v + readInt(b, u);
u += 4;
newOffset = getNewOffset(allIndexes, allSizes, v, label);
newCode.putInt(newOffset);
}
break;
}
case 17: // '\021'
{
opcode = b[u + 1] & 0xff;
if (opcode == 132) {
newCode.putByteArray(b, u, 6);
u += 6;
} else {
newCode.putByteArray(b, u, 4);
u += 4;
}
break;
}
case 1: // '\001'
case 3: // '\003'
case 11: // '\013'
{
newCode.putByteArray(b, u, 2);
u += 2;
break;
}
case 2: // '\002'
case 5: // '\005'
case 6: // '\006'
case 12: // '\f'
case 13: // '\r'
{
newCode.putByteArray(b, u, 3);
u += 3;
break;
}
case 7: // '\007'
case 8: // '\b'
{
newCode.putByteArray(b, u, 5);
u += 5;
break;
}
case 16: // '\020'
default: {
newCode.putByteArray(b, u, 4);
u += 4;
break;
}
}
}
if (frameCount > 0)
if (compute == 0) {
frameCount = 0;
stackMap = null;
previousFrame = null;
frame = null;
Frame f = new Frame();
f.owner = this.labels;
Type args[] = Type.getArgumentTypes(descriptor);
f.initInputFrame(cw, access, args, maxLocals);
visitFrame(f);
for (Label l = this.labels; l != null; l = l.successor) {
int u = l.position - 3;
if ((l.status & 0x20) != 0 || u >= 0 && resize[u]) {
getNewOffset(allIndexes, allSizes, l);
visitFrame(l.frame);
}
}
} else {
cw.invalidFrames = true;
}
for (Handler h = firstHandler; h != null; h = h.next) {
getNewOffset(allIndexes, allSizes, h.start);
getNewOffset(allIndexes, allSizes, h.end);
getNewOffset(allIndexes, allSizes, h.handler);
}
for (int i = 0; i < 2; i++) {
ByteVector bv = i != 0 ? localVarType : localVar;
if (bv != null) {
b = bv.data;
for (int u = 0; u < bv.length; u += 10) {
int label = readUnsignedShort(b, u);
int newOffset = getNewOffset(allIndexes, allSizes, 0, label);
writeShort(b, u, newOffset);
label += readUnsignedShort(b, u + 2);
newOffset = getNewOffset(allIndexes, allSizes, 0, label) - newOffset;
writeShort(b, u + 2, newOffset);
}
}
}
if (lineNumber != null) {
b = lineNumber.data;
for (int u = 0; u < lineNumber.length; u += 4)
writeShort(b, u, getNewOffset(allIndexes, allSizes, 0, readUnsignedShort(b, u)));
}
for (Attribute attr = cattrs; attr != null; attr = attr.next) {
Label labels[] = attr.getLabels();
if (labels != null) {
for (int i = labels.length - 1; i >= 0; i--)
getNewOffset(allIndexes, allSizes, labels[i]);
}
}
code = newCode;
}
static int readUnsignedShort(byte b[], int index) {
return (b[index] & 0xff) << 8 | b[index + 1] & 0xff;
}
static short readShort(byte b[], int index) {
return (short) ((b[index] & 0xff) << 8 | b[index + 1] & 0xff);
}
static int readInt(byte b[], int index) {
return (b[index] & 0xff) << 24 | (b[index + 1] & 0xff) << 16 | (b[index + 2] & 0xff) << 8 | b[index + 3] & 0xff;
}
static void writeShort(byte b[], int index, int s) {
b[index] = (byte) (s >>> 8);
b[index + 1] = (byte) s;
}
static int getNewOffset(int indexes[], int sizes[], int begin, int end) {
int offset = end - begin;
for (int i = 0; i < indexes.length; i++)
if (begin < indexes[i] && indexes[i] <= end)
offset += sizes[i];
else if (end < indexes[i] && indexes[i] <= begin)
offset -= sizes[i];
return offset;
}
static void getNewOffset(int indexes[], int sizes[], Label label) {
if ((label.status & 4) == 0) {
label.position = getNewOffset(indexes, sizes, 0, label.position);
label.status |= 4;
}
}
int classReaderOffset;
int classReaderLength;
private AnnotationWriter panns[];
private AnnotationWriter ipanns[];
private Label labels;
private int stackSize;
static final int ACC_CONSTRUCTOR = 0x80000;
static final int SAME_FRAME = 0;
static final int SAME_LOCALS_1_STACK_ITEM_FRAME = 64;
static final int RESERVED = 128;
static final int SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED = 247;
static final int CHOP_FRAME = 248;
static final int SAME_FRAME_EXTENDED = 251;
static final int APPEND_FRAME = 252;
static final int FULL_FRAME = 255;
private static final int FRAMES = 0;
private static final int MAXS = 1;
private static final int NOTHING = 2;
final ClassWriter cw;
private int access;
private final int name;
private final int desc;
private final String descriptor;
String signature;
int exceptionCount;
int exceptions[];
private ByteVector annd;
private AnnotationWriter anns;
private AnnotationWriter ianns;
private int synthetics;
private Attribute attrs;
private ByteVector code;
private int maxStack;
private int maxLocals;
private int currentLocals;
private int frameCount;
private ByteVector stackMap;
private int previousFrameOffset;
private int previousFrame[];
private int frame[];
private int handlerCount;
private Handler firstHandler;
private Handler lastHandler;
private int localVarCount;
private ByteVector localVar;
private int localVarTypeCount;
private ByteVector localVarType;
private int lineNumberCount;
private ByteVector lineNumber;
private Attribute cattrs;
private boolean resize;
private int subroutines;
private final int compute;
private Label previousBlock;
private Label currentBlock;
private int maxStackSize;
}
