Examples with XSBoolean org.eclipse.wst.xml.xpath2.processor.internal.types.XSBoolean used on opensource projects

Example 41 with XSBoolean

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSBoolean in project webtools.sourceediting by eclipse.

the class DefaultEvaluator method visit.

/**
 * visit instance of expression
 *
 * @param ioexp
 *            is the instance of expression.
 * @return a new function
 */
public Object visit(InstOfExpr ioexp) {
    // get the value
    ResultSequence rs = (ResultSequence) ioexp.left().accept(this);
    // get the sequence type
    SequenceType seqt = (SequenceType) ioexp.right();
    return ResultSequenceFactory.create_new(new XSBoolean(isInstanceOf(rs, seqt)));
}

Example 42 with XSBoolean

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSBoolean in project webtools.sourceediting by eclipse.

the class DefaultEvaluator method visit.

/**
 * visit if expression
 *
 * @param ifex
 *            is the if expression.
 * @return a ifex.then_clause().accept(this).
 */
public Object visit(IfExpr ifex) {
    ResultSequence test_res = do_expr(ifex.iterator());
    XSBoolean res = effective_boolean_value(test_res);
    if (res.value())
        return ifex.then_clause().accept(this);
    else
        return ifex.else_clause().accept(this);
}

Example 43 with XSBoolean

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSBoolean in project webtools.sourceediting by eclipse.

the class DefaultEvaluator method visit.

/**
 * visit castable expression
 *
 * @param cexp
 *            is the castable expression.
 * @return a new function
 */
public Object visit(CastableExpr cexp) {
    boolean castable = false;
    try {
        CastExpr ce = new CastExpr((Expr) cexp.left(), (SingleType) cexp.right());
        visit(ce);
        castable = true;
    } catch (Throwable t) {
        castable = false;
    }
    return ResultSequenceFactory.create_new(new XSBoolean(castable));
}

Example 44 with XSBoolean

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSBoolean in project webtools.sourceediting by eclipse.

the class DefaultEvaluator method do_for_all.

// XXX ugly
// type: 0 = for [return == "correct"]
// 1 = for all [return false, return empty on true]
// 2 = there exists [return true, return empty on false]
private XSBoolean do_for_all(ListIterator iter, Expr finalexpr) {
    // we have more vars to bind...
    if (iter.hasNext()) {
        VarExprPair ve = (VarExprPair) iter.next();
        // evaluate binding sequence
        ResultSequence rs = (ResultSequence) ve.expr().accept(this);
        QName varname = ve.varname();
        try {
            for (Iterator i = rs.iterator(); i.hasNext(); ) {
                AnyType item = (AnyType) i.next();
                pushScope(varname, item);
                XSBoolean effbool = do_for_all(iter, finalexpr);
                popScope();
                // out what to do with it
                if (!effbool.value())
                    return XSBoolean.FALSE;
            }
        } finally {
            iter.previous();
        }
        return XSBoolean.TRUE;
    } else // we finally got to do the "last expression"
    {
        return effective_boolean_value((ResultSequence) finalexpr.accept(this));
    }
}

Example 45 with XSBoolean

use of org.eclipse.wst.xml.xpath2.processor.internal.types.XSBoolean in project webtools.sourceediting by eclipse.

the class DefaultEvaluator method visit.

/**
 * visit schema element test.
 *
 * @param e
 *            is the schema element test.
 * @return a result sequence
 */
public Object visit(SchemaElemTest e) {
    // filter out all elements
    ResultSequence rs = kind_test((ResultSequence) ((Pair) _param)._two, ElementType.class);
    // match the name
    // XXX substitution groups
    QName name = e.name();
    for (Iterator i = rs.iterator(); i.hasNext(); ) {
        if (!name_test((ElementType) i.next(), name, "element"))
            i.remove();
    }
    // check the type
    TypeDefinition et = _sc.getTypeModel().lookupElementDeclaration(name.namespace(), name.local());
    for (Iterator i = rs.iterator(); i.hasNext(); ) {
        NodeType node = (NodeType) i.next();
        if (!derivesFrom(node, et)) {
            i.remove();
            continue;
        }
        XSBoolean nilled = (XSBoolean) node.nilled().first();
        // XXX or, in schema it is nillable
        if (nilled.value())
            i.remove();
    }
    return rs;
}