private boolean checkChildren(
LogicalExpression e,
IdentityHashMap<LogicalExpression, Object> value,
boolean transmitsConstant) {
List<LogicalExpression> constants = Lists.newLinkedList();
boolean constant = true;
for (LogicalExpression child : e) {
if (child.accept(this, value)) {
constants.add(child);
} else {
constant = false;
}
}
// if one or more clauses isn't constant, this isn't constant. this also isn't a constant if it
// operates on a set.
if (!constant || !transmitsConstant) {
for (LogicalExpression c : constants) {
value.put(c, true);
}
}
return constant && transmitsConstant;
}
