checkEmpty();
select = typeCheck("select", select);
}
public Expression compile(Executable exec) {
CopyOf inst = new CopyOf(select, copyNamespaces, validation, schemaType, false);
if (readOnce) {
inst.setReadOnce(readOnce);
}
inst.setCopyLineNumbers(exec.getConfiguration().isLineNumbering());
inst.setStaticBaseUri(getBaseURI());
return inst;
}