@Override
public void visitLineNumber(final int line, final Label start) {
checkStartCode();
checkEndCode();
checkUnsignedShort(line, "Invalid line number");
checkLabel(start, true, "start label");
super.visitLineNumber(line, start);
}
@Override
public void visitIincInsn(final int var, final int increment) {
checkStartCode();
checkEndCode();
checkUnsignedShort(var, "Invalid variable index");
checkSignedShort(increment, "Invalid increment");
super.visitIincInsn(var, increment);
++insnCount;
}
@Override
public void visitVarInsn(final int opcode, final int var) {
checkStartCode();
checkEndCode();
checkOpcode(opcode, 2);
checkUnsignedShort(var, "Invalid variable index");
super.visitVarInsn(opcode, var);
++insnCount;
}
@Override
public void visitMaxs(final int maxStack, final int maxLocals) {
checkStartCode();
checkEndCode();
endCode = true;
for (Label l : usedLabels) {
if (labels.get(l) == null) {
throw new IllegalStateException("Undefined label used");
}
}
for (int i = 0; i < handlers.size(); ) {
Integer start = labels.get(handlers.get(i++));
Integer end = labels.get(handlers.get(i++));
if (start == null || end == null) {
throw new IllegalStateException("Undefined try catch block labels");
}
if (end.intValue() <= start.intValue()) {
throw new IllegalStateException("Emty try catch block handler range");
}
}
checkUnsignedShort(maxStack, "Invalid max stack");
checkUnsignedShort(maxLocals, "Invalid max locals");
super.visitMaxs(maxStack, maxLocals);
}
@Override
public AnnotationVisitor visitLocalVariableAnnotation(
int typeRef,
TypePath typePath,
Label[] start,
Label[] end,
int[] index,
String desc,
boolean visible) {
checkStartCode();
checkEndCode();
int sort = typeRef >>> 24;
if (sort != TypeReference.LOCAL_VARIABLE && sort != TypeReference.RESOURCE_VARIABLE) {
throw new IllegalArgumentException(
"Invalid type reference sort 0x" + Integer.toHexString(sort));
}
CheckClassAdapter.checkTypeRefAndPath(typeRef, typePath);
checkDesc(desc, false);
if (start == null
|| end == null
|| index == null
|| end.length != start.length
|| index.length != start.length) {
throw new IllegalArgumentException(
"Invalid start, end and index arrays (must be non null and of identical length");
}
for (int i = 0; i < start.length; ++i) {
checkLabel(start[i], true, "start label");
checkLabel(end[i], true, "end label");
checkUnsignedShort(index[i], "Invalid variable index");
int s = labels.get(start[i]).intValue();
int e = labels.get(end[i]).intValue();
if (e < s) {
throw new IllegalArgumentException(
"Invalid start and end labels (end must be greater than start)");
}
}
return super.visitLocalVariableAnnotation(typeRef, typePath, start, end, index, desc, visible);
}
@Override
public void visitLocalVariable(
final String name,
final String desc,
final String signature,
final Label start,
final Label end,
final int index) {
checkStartCode();
checkEndCode();
checkUnqualifiedName(version, name, "name");
checkDesc(desc, false);
checkLabel(start, true, "start label");
checkLabel(end, true, "end label");
checkUnsignedShort(index, "Invalid variable index");
int s = labels.get(start).intValue();
int e = labels.get(end).intValue();
if (e < s) {
throw new IllegalArgumentException(
"Invalid start and end labels (end must be greater than start)");
}
super.visitLocalVariable(name, desc, signature, start, end, index);
}