@Test
public void match_2() {
MapAction mapAction = new MapAction();
mapAction.put(Var.alloc("a"), new ActionMatchVar());
MapResult mapResult = new MapResult();
mapResult.put(Var.alloc("a"), ExprUtils.parse("?x"));
match("?x", "?a", mapAction, mapResult);
}
public SortCondition(Node var, int dir) {
this(ExprUtils.nodeToExpr(var), dir);
}