How to use

visitLineNumber

method

in

org.objectweb.asm.MethodVisitor

public void visitLineNumber(int line, Label start) {
  mv1.visitLineNumber(line, start);
  mv2.visitLineNumber(line, start);
}

public void visitLineNumber(int line, Label start) {
  mv1.visitLineNumber(line, start);
  mv2.visitLineNumber(line, start);
}

/**
 * Visits a line number declaration.
 *
 * @param line a line number. This number refers to the source file from which the class was
 *     compiled.
 * @param start the first instruction corresponding to this line number.
 * @throws IllegalArgumentException if {@code start} has not already been visited by this visitor
 *     (by the {@link #visitLabel} method).
 */
public void visitLineNumber(final int line, final Label start) {
 if (mv != null) {
  mv.visitLineNumber(line, start);
 }
}

/**
 * Makes the given visitor visit this label and its source line numbers, if applicable.
 *
 * @param methodVisitor a method visitor.
 * @param visitLineNumbers whether to visit of the label's source line numbers, if any.
 */
final void accept(final MethodVisitor methodVisitor, final boolean visitLineNumbers) {
 methodVisitor.visitLabel(this);
 if (visitLineNumbers && lineNumber != 0) {
  methodVisitor.visitLineNumber(lineNumber & 0xFFFF, this);
  if (otherLineNumbers != null) {
   for (int i = 1; i <= otherLineNumbers[0]; ++i) {
    methodVisitor.visitLineNumber(otherLineNumbers[i], this);
   }
  }
 }
}

void visitLineNumbers(MethodVisitor mv) {
  for (LineNumberNode node : lineNumberNodes.values()) {
    mv.visitLineNumber(node.line, node.start.getLabel());
  }
}

/**
 * Writes out the information stored in tags associated with the given unit
 * 
 * @param mv
 *          The method visitor for writing out the bytecode
 * @param u
 *          The unit for which to write out the tags
 */
protected void generateTagsForUnit(MethodVisitor mv, Unit u) {
 if (u.hasTag("LineNumberTag")) {
  LineNumberTag lnt = (LineNumberTag) u.getTag("LineNumberTag");
  Label l;
  if (branchTargetLabels.containsKey(u)) {
   l = branchTargetLabels.get(u);
  } else {
   l = new Label();
   mv.visitLabel(l);
  }
  mv.visitLineNumber(lnt.getLineNumber(), l);
 }
}

asm.visitLabel(label);
if (labelStmt.lineNumber >= 0) {
  asm.visitLineNumber(labelStmt.lineNumber, label);

@Override
public void visitLineNumber(int line, Label start) {
 prepareToStartTracking();
 this.currentLineNumber = line;
 super.visitLineNumber(line, start);
}

@Test
public void shouldForwardVisitLineNumberToChild() {
 final Label l = new Label();
 getTesteeVisitor().visitLineNumber(1, l);
 verify(this.mv).visitLineNumber(1, l);
}

@Override
public void visitLineNumber(int number, Label label) {
  lastLineId = lineIdGenerator.incrementAndGet();
  super.visitLineNumber(number, label);
}

public void notifySourceEnd()
{
  Label label = new Label();
  mv.visitLabel(label);
  mv.visitLineNumber(sourceLine + 1, label);
}

private void trackLineAndColumn(Node node) {
 Label line = new Label();
 methodStack.peek().visitLabel(line);
 methodStack.peek().visitLineNumber(node.sourceLine, line);
}

@Override
public void visitLineNumber(int line, Label label) {
  Log.logEach("visitLineNumber", line, label);
  super.visitLineNumber(line, label);
}

@Override
public void visitLineNumber(final int line, final Label start) {
 p.visitLineNumber(line, start);
 super.visitLineNumber(line, start);
}

@Deprecated
private MethodVisitor startCallFast(ClassWriter cw) {
  MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "call", FAST_CALL_SIG, null, null);
  
  mv.visitCode();
  Label line = new Label();
  mv.visitLineNumber(0, line);
  mv.visitVarInsn(ALOAD, 1);
  mv.visitTypeInsn(CHECKCAST, typePath);
  return mv;
}

@Deprecated
private MethodVisitor startCallSFast(ClassWriter cw) {
  MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "call", FAST_CALL_SIG, null, null);
  
  mv.visitCode();
  Label line = new Label();
  mv.visitLineNumber(0, line);
  mv.visitVarInsn(ALOAD, 1);
  mv.visitTypeInsn(CHECKCAST, IRUB);
  return mv;
}

  @Override
  public final void begin(final String name, final Attributes attrs) {
    int line = Integer.parseInt(attrs.getValue("line"));
    Label start = getLabel(attrs.getValue("start"));
    getCodeVisitor().visitLineNumber(line, start);
  }
}

 static Label visitLine(GoloElement<?> element, MethodVisitor visitor) {
  Label label = new Label();
  visitor.visitLabel(label);
  if (element.hasPosition()) {
   visitor.visitLineNumber(element.positionInSourceCode().getStartLine(), label);
  }
  return label;
 }
}

@Override
public void accept(MethodVisitor visitor, MethodGenerationContext generationContext)
{
  if (generationContext.updateLineNumber(lineNumber)) {
    label.accept(visitor, generationContext);
    visitor.visitLineNumber(lineNumber, label.getLabel());
  }
}

@Override
public void visitLineNumber(int arg0, Label arg1) {
  super.visitLineNumber(arg0, arg1);
  appendToBacklog(new LineNumberNode(arg0, new LabelNode(arg1)));
}