public OR(SemanticContext a, SemanticContext b)
{
HashSet <SemanticContext> operands = new HashSet <SemanticContext>();
if (a is SemanticContext.OR)
{
operands.UnionWith(((OR)a).opnds);
}
else
{
operands.Add(a);
}
if (b is SemanticContext.OR)
{
operands.UnionWith(((OR)b).opnds);
}
else
{
operands.Add(b);
}
IList <SemanticContext.PrecedencePredicate> precedencePredicates = FilterPrecedencePredicates(operands);
if (precedencePredicates.Count > 0)
{
// interested in the transition with the highest precedence
SemanticContext.PrecedencePredicate reduced = precedencePredicates.Max();
operands.Add(reduced);
}
this.opnds = operands.ToArray();
}
public AND([NotNull] SemanticContext a, [NotNull] SemanticContext b)
{
HashSet <SemanticContext> operands = new HashSet <SemanticContext>();
if (a is SemanticContext.AND)
{
operands.UnionWith(((AND)a).opnds);
}
else
{
operands.Add(a);
}
if (b is SemanticContext.AND)
{
operands.UnionWith(((AND)b).opnds);
}
else
{
operands.Add(b);
}
IList <SemanticContext.PrecedencePredicate> precedencePredicates = FilterPrecedencePredicates(operands);
if (precedencePredicates.Count > 0)
{
// interested in the transition with the lowest precedence
SemanticContext.PrecedencePredicate reduced = precedencePredicates.Min();
operands.Add(reduced);
}
opnds = operands.ToArray();
}