CommonNode< T >()

static T System.Linq.Expressions.Interpreter.LabelInfo.CommonNode< T > ( T first, T second, Func< T, T > parent )

inlinestaticpackage

Type Constraints

T

:

class

Definition at line 177 of file LabelInfo.cs.

                                                                                  : class
    {
        EqualityComparer<T> @default = EqualityComparer<T>.Default;
        if (@default.Equals(first, second))
        {
            return first;
        }
        HashSet<T> hashSet = new HashSet<T>(@default);
        for (T val = first; val != null; val = parent(val))
        {
            hashSet.Add(val);
        }
        for (T val2 = second; val2 != null; val2 = parent(val2))
        {
            if (hashSet.Contains(val2))
            {
                return val2;
            }
        }
        return null;
    }

References System.Collections.Generic.Dictionary< TKey, TValue >.Add(), System.Collections.Generic.Dictionary< TKey, TValue >.Contains(), System.Linq.first, and System.Linq.second.