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package com.jclark.xsl.expr;
import com.jclark.xsl.om.*;
/**
* Composition when expr1 is SINGLE_LEVEL and expr2 is STAYS_IN_SUBTREE.
*/
class SequenceComposeExpr extends ConvertibleNodeSetExpr {
private final ConvertibleNodeSetExpr expr1;
private final ConvertibleNodeSetExpr expr2;
SequenceComposeExpr(ConvertibleNodeSetExpr expr1, ConvertibleNodeSetExpr expr2) {
this.expr1 = expr1;
this.expr2 = expr2;
}
public NodeIterator eval(Node node, ExprContext context) throws XSLException {
return new SequenceComposeNodeIterator(expr1.eval(node, context),
expr2,
context);
}
int getOptimizeFlags() {
// if expr2 is SINGLE_LEVEL then this will be too
return expr2.getOptimizeFlags();
}
}
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