Examples with QuantifiedExpr org.eclipse.wst.xml.xpath2.processor.internal.ast.QuantifiedExpr used on opensource projects

Example 1 with QuantifiedExpr

use of org.eclipse.wst.xml.xpath2.processor.internal.ast.QuantifiedExpr in project webtools.sourceediting by eclipse.

the class Normalizer method visit.

/**
 * @param qex
 *            is the Quantified expression.
 * @return qex expression.
 */
// XXX: code duplication
public Object visit(QuantifiedExpr qex) {
    QuantifiedExpr last = qex;
    Expr ret = qex.expr();
    int depth = 0;
    for (Iterator i = qex.iterator(); i.hasNext(); ) {
        VarExprPair ve = (VarExprPair) i.next();
        // ok we got nested fors...
        if (depth > 0) {
            Collection pairs = new ArrayList();
            pairs.add(ve);
            QuantifiedExpr qe = new QuantifiedExpr(qex.type(), pairs, ret);
            last.set_expr(qe);
            last = qe;
        }
        depth++;
    }
    // normalize return value, and set it to the last for expr
    ret.accept(this);
    // get rid of the pairs in the parent (original) for
    if (depth > 1)
        qex.truncate_pairs();
    return qex;
}