private static void mapLines(
TextBuffer code,
StructLineNumberTableAttribute table,
BytecodeMappingTracer tracer,
int startLine) {
// build line start offsets map
HashMap<Integer, Set<Integer>> lineStartOffsets = new HashMap<Integer, Set<Integer>>();
for (Map.Entry<Integer, Integer> entry : tracer.getMapping().entrySet()) {
Integer lineNumber = entry.getValue() - startLine;
Set<Integer> curr = lineStartOffsets.get(lineNumber);
if (curr == null) {
curr = new TreeSet<Integer>(); // requires natural sorting!
}
curr.add(entry.getKey());
lineStartOffsets.put(lineNumber, curr);
}
String lineSeparator = DecompilerContext.getNewLineSeparator();
StringBuilder text = code.getOriginalText();
int pos = text.indexOf(lineSeparator);
int lineNumber = 0;
while (pos != -1) {
Set<Integer> startOffsets = lineStartOffsets.get(lineNumber);
if (startOffsets != null) {
for (Integer offset : startOffsets) {
int number = table.findLineNumber(offset);
if (number >= 0) {
code.setLineMapping(number, pos);
break;
}
}
}
pos = text.indexOf(lineSeparator, pos + 1);
lineNumber++;
}
}
public static String toValidJavaIdentifier(String name) {
if (name == null || name.isEmpty()) return name;
boolean changed = false;
StringBuilder res = new StringBuilder(name.length());
for (int i = 0; i < name.length(); i++) {
char c = name.charAt(i);
if ((i == 0 && !Character.isJavaIdentifierStart(c))
|| (i > 0 && !Character.isJavaIdentifierPart(c))) {
changed = true;
res.append("_");
} else res.append(c);
}
if (!changed) {
return name;
}
return res.append("/* $FF was: ").append(name).append("*/").toString();
}