@Override
public int exprSize() {
int sz = 1;
for (final Let lt : copies) sz += lt.exprSize();
for (final Expr e : expr) sz += e.exprSize();
return sz;
}
@Override
public void checkUp() throws QueryException {
for (final Let c : copies) c.checkUp();
final Expr m = expr[0];
m.checkUp();
if (!m.isVacuous() && !m.has(Flag.UPD)) throw UPMODIFY.get(info);
checkNoUp(expr[1]);
}
@Override
public boolean removable(final Var v) {
for (final Let c : copies) if (!c.removable(v)) return false;
return super.removable(v);
}
@Override
public Expr compile(final QueryContext ctx, final VarScope scp) throws QueryException {
for (final Let c : copies) c.expr = c.expr.compile(ctx, scp);
super.compile(ctx, scp);
return this;
}