public static void AddOrUpdate <TKey, TValue>(this IDictionary <TKey, TValue> @this, params Tuple <TKey, TValue>[] values)
{
if (@this == null)
{
throw new NullReferenceException();
}
Contract.EndContractBlock();
foreach (var kvp in values)
{
@this.AddOrUpdate(kvp.Item1, kvp.Item2);
}
}
public static void AddOrUpdate <TKey, TValue>(this IDictionary <TKey, TValue> @this, params KeyValuePair <TKey, TValue>[] values)
{
if (@this == null)
{
throw new NullReferenceException();
}
#if NET40
Contract.EndContractBlock();
#endif
foreach (var kvp in values)
{
@this.AddOrUpdate(kvp.Key, kvp.Value);
}
}
public static void AddOrUpdate <TKey, TValue>(this IDictionary <TKey, TValue> @this, IEnumerable <Tuple <TKey, TValue> > values)
{
if (@this == null)
{
throw new NullReferenceException();
}
if (values == null)
{
throw new ArgumentNullException(nameof(values));
}
Contract.EndContractBlock();
foreach (var kvp in values)
{
@this.AddOrUpdate(kvp.Item1, kvp.Item2);
}
}
public static void AddOrUpdate <TKey, TValue>(this IDictionary <TKey, TValue> @this, IEnumerable <KeyValuePair <TKey, TValue> > values)
{
if (@this == null)
{
throw new NullReferenceException();
}
if (values == null)
{
throw new ArgumentNullException(nameof(values));
}
#if NET40
Contract.EndContractBlock();
#endif
foreach (var kvp in values)
{
@this.AddOrUpdate(kvp.Key, kvp.Value);
}
}
/// <summary>
/// Adds a key/value pair to the <see cref="IDictionary{TKey, TValue}"/> if the key does not already exist, or updates a key/value pair in the <see cref="IDictionary{TKey, TValue}"/> by using the specified function if the key already exists.
/// </summary>
/// <param name="dictionary">Dictionary to check and get</param>
/// <param name="key"> The key to be added or whose value should be updated</param>
/// <param name="factory">The function used to generate a value to be added for an absent key or updated for an present key.</param>
/// <typeparam name="TKey">Type of the key</typeparam>
/// <typeparam name="TValue">Type of the value</typeparam>
/// <returns>The new value for the key. This will be either be the result of factory.</returns>
public static TValue AddOrUpdate <TKey, TValue>(this IDictionary <TKey, TValue> dictionary, TKey key, Func <TValue> factory) => dictionary.AddOrUpdate(key, k => factory());