/** {@inheritDoc} */
public SourcePosition getPosition() {
// Find the toplevel. From there use a tree-walking utility
// that finds the tree for our symbol, and with it the position.
Env<AttrContext> enterEnv = getEnterEnv();
if (enterEnv == null) return null;
JCTree.JCCompilationUnit toplevel = enterEnv.toplevel;
JavaFileObject sourcefile = toplevel.sourcefile;
if (sourcefile == null) return null;
int pos = TreeInfo.positionFor(sym, toplevel);
return new SourcePositionImpl(sourcefile, pos, toplevel.lineMap);
}
