/** Add new variable to the closure. */
public void addVariable(VariableRefBase variableRef) {
if (_closureVars == null) {
_closureVars = new ArrayList();
}
// Only one reference per variable
if (!_closureVars.contains(variableRef)) {
_closureVars.add(variableRef);
// Add variable to parent closure as well
Closure parentClosure = getParentClosure();
if (parentClosure != null) {
parentClosure.addVariable(variableRef);
}
}
}
