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package com.jclark.xsl.expr;
import com.jclark.xsl.om.*;
/**
* descendants-or-self(node())/E when E has STAYS_IN_SUBTREE
*/
class SubtreeExpr extends ConvertibleNodeSetExpr {
private final ConvertibleNodeSetExpr expr;
SubtreeExpr(ConvertibleNodeSetExpr expr) {
this.expr = expr;
}
public NodeIterator eval(Node node, ExprContext context) throws XSLException {
return new UnionNodeIterator(expr.eval(node, context),
new SequenceComposeNodeIterator(node.getChildren(),
this,
context));
}
int getOptimizeFlags() {
// if expr is SINGLE_LEVEL then this will be too
return expr.getOptimizeFlags();
}
}
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