/**
* Replace all references to the variable bound by this let expression, that occur within the
* action expression, with the given expression
*
* @param opt The optimizer
* @param seq the expression
* @throws net.sf.saxon.trans.XPathException
*/
public void replaceVariable(Optimizer opt, Expression seq) throws XPathException {
PromotionOffer offer2 = new PromotionOffer(opt);
offer2.action = PromotionOffer.INLINE_VARIABLE_REFERENCES;
offer2.bindingList = new Binding[] {this};
offer2.containingExpression = seq;
action = doPromotion(action, offer2);
if (offer2.accepted) {
// there might be further references to the variable
offer2.accepted = false;
replaceVariable(opt, seq);
}
if (isIndexedVariable() && seq instanceof VariableReference) {
Binding newBinding = ((VariableReference) seq).getBinding();
if (newBinding instanceof Assignation) {
((Assignation) newBinding).setIndexedVariable();
}
}
}
