/// <summary>
/// Initializes a new instance of the <see cref="ImmutableSortedDictionaryBuilderDebuggerProxy<TKey, TValue>"/> class.
/// </summary>
/// <param name="map">The collection to display in the debugger</param>
public ImmutableSortedDictionaryBuilderDebuggerProxy(ImmutableSortedDictionary <TKey, TValue> .Builder map)
{
Requires.NotNull(map, "map");
_map = map;
}
/// <summary>
/// Performs the set operation on a given data structure.
/// </summary>
private static MutationResult Except(IEnumerable <T> other, IEqualityComparer <T> equalityComparer, ImmutableSortedDictionary <int, HashBucket> .Node root)
{
Requires.NotNull(other, "other");
Requires.NotNull(equalityComparer, "equalityComparer");
Requires.NotNull(root, "root");
int count = 0;
var newRoot = root;
foreach (var item in other)
{
int hashCode = equalityComparer.GetHashCode(item);
HashBucket bucket;
if (newRoot.TryGetValue(hashCode, Comparer <int> .Default, out bucket))
{
OperationResult result;
HashBucket newBucket = bucket.Remove(item, equalityComparer, out result);
if (result == OperationResult.SizeChanged)
{
count--;
newRoot = UpdateRoot(newRoot, hashCode, newBucket);
}
}
}
return(new MutationResult(newRoot, count));
}
public static ImmutableSortedDictionary <TKey, TValue> ToImmutableSortedDictionary <TKey, TValue>(this ImmutableSortedDictionary <TKey, TValue> .Builder builder) where TKey : notnull
{
Requires.NotNull(builder, nameof(builder));
return(builder.ToImmutable());
}
/// <summary>
/// Attempts to discover an <see cref="ImmutableSortedDictionary{TKey, TValue}"/> instance beneath some enumerable sequence
/// if one exists.
/// </summary>
/// <param name="sequence">The sequence that may have come from an immutable map.</param>
/// <param name="other">Receives the concrete <see cref="ImmutableSortedDictionary{TKey, TValue}"/> typed value if one can be found.</param>
/// <returns><c>true</c> if the cast was successful; <c>false</c> otherwise.</returns>
private static bool TryCastToImmutableMap(IEnumerable <KeyValuePair <TKey, TValue> > sequence, [NotNullWhen(true)] out ImmutableSortedDictionary <TKey, TValue>?other)
{
other = sequence as ImmutableSortedDictionary <TKey, TValue>;
if (other != null)
{
return(true);
}
if (sequence is Builder builder)
{
other = builder.ToImmutable();
return(true);
}
return(false);
}
/// <summary>
/// Wraps the specified data structure with an immutable collection wrapper.
/// </summary>
/// <param name="root">The root of the data structure.</param>
/// <param name="adjustedCountIfDifferentRoot">The adjusted count if the root has changed.</param>
/// <returns>The immutable collection.</returns>
private ImmutableHashSet <T> Wrap(ImmutableSortedDictionary <int, HashBucket> .Node root, int adjustedCountIfDifferentRoot)
{
return((root != this.root) ? new ImmutableHashSet <T>(root, this.equalityComparer, adjustedCountIfDifferentRoot) : this);
}
/// <summary>
/// Initializes a new instance of the <see cref="ImmutableDictionary<TKey, TValue>.MutationInput"/> struct.
/// </summary>
/// <param name="map">The map.</param>
internal MutationInput(ImmutableDictionary <TKey, TValue> map)
{
this.root = map.root;
this.comparers = map.comparers;
this.count = map.count;
}
/// <summary>
/// Removes all items from the <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </summary>
/// <exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.Generic.ICollection`1"/> is read-only. </exception>
public void Clear()
{
this.count = 0;
this.Root = ImmutableSortedDictionary <int, HashBucket> .Node.EmptyNode;
}
/// <summary>
/// Initializes a new instance of the <see cref="ImmutableHashSet<T>.NodeEnumerable"/> struct.
/// </summary>
/// <param name="root">The root.</param>
internal NodeEnumerable(ImmutableSortedDictionary <int, HashBucket> .Node root)
{
Requires.NotNull(root, "root");
this.root = root;
}
/// <summary>
/// Initializes a new instance of the <see cref="ImmutableDictionary<TKey, TValue>.MutationResult"/> struct.
/// </summary>
/// <param name="root">The root.</param>
/// <param name="countAdjustment">The count adjustment.</param>
internal MutationResult(ImmutableSortedDictionary <int, HashBucket> .Node root, int countAdjustment)
{
Requires.NotNull(root, "root");
this.root = root;
this.countAdjustment = countAdjustment;
}
/// <summary>
/// Initializes a new instance of the <see cref="ImmutableDictionary<TKey, TValue>.MutationResult"/> struct.
/// </summary>
/// <param name="unchangedInput">The unchanged input.</param>
internal MutationResult(MutationInput unchangedInput)
{
this.root = unchangedInput.Root;
this.countAdjustment = 0;
}
/// <summary>
/// Applies the result of some mutation operation to this instance.
/// </summary>
/// <param name="result">The result.</param>
private bool Apply(MutationResult result)
{
this.Root = result.Root;
this.count += result.CountAdjustment;
return(result.CountAdjustment != 0);
}
/// <summary>
/// Initializes a new instance of the <see cref="ImmutableSortedDictionaryDebuggerProxy{TKey, TValue}"/> class.
/// </summary>
/// <param name="map">The collection to display in the debugger</param>
public ImmutableSortedDictionaryDebuggerProxy(ImmutableSortedDictionary <TKey, TValue> map)
{
Requires.NotNull(map, nameof(map));
_map = map;
}