/**
* Gets an approximate source code location for a node if possible.
*
* @return the StackTraceElements if an approximate source location is found, null otherwise
*/
public static StackTraceElement[] approxSourceStackTraceElement(Node node) {
ArrayList<StackTraceElement> elements = new ArrayList<>();
Node n = node;
while (n != null) {
if (n instanceof MethodCallTargetNode) {
elements.add(((MethodCallTargetNode) n).targetMethod().asStackTraceElement(-1));
n = ((MethodCallTargetNode) n).invoke().asNode();
}
if (n instanceof StateSplit) {
FrameState state = ((StateSplit) n).stateAfter();
while (state != null) {
ResolvedJavaMethod method = state.method();
if (method != null) {
elements.add(method.asStackTraceElement(state.bci - 1));
}
state = state.outerFrameState();
}
break;
}
n = n.predecessor();
}
return elements.toArray(new StackTraceElement[elements.size()]);
}
