Struct ScyllaMap<TKey, TValue>.Enumerator

Value-type enumerator for ScyllaMap<TKey, TValue> that enables allocation-free foreach iteration when the concrete map type is used directly (the compiler resolves GetEnumerator() without going through an interface, avoiding heap allocation of the enumerator box).

Inherited Members

ValueType.Equals(object)

ValueType.GetHashCode()

ValueType.ToString()

object.Equals(object, object)

object.GetType()

object.ReferenceEquals(object, object)

Namespace: Scylla.Core.Structures

Assembly: ScyllaCore.dll

Syntax

public struct ScyllaMap<TKey, TValue>.Enumerator

Remarks

Only slots in Scylla.Core.Structures.ScyllaMap<TKey, TValue>.STATE_OCCUPIED state are yielded; empty and tombstone slots are skipped automatically. Modifying the map during enumeration produces undefined behaviour.

Constructors

Enumerator(ScyllaMap<TKey, TValue>)

Initializes a new instance of the enumerator for the specified map. Takes a snapshot of the current table capacity so that the iteration bound is stable even if the map's arrays are replaced by a rehash during enumeration (undefined behaviour, but at least no out-of-bounds access occurs).

Declaration

public Enumerator(ScyllaMap<TKey, TValue> map)

Parameters

Type	Name	Description
ScyllaMap<TKey, TValue>	map	The map to enumerate. Must not be null.

Properties

Current

Gets the key/value pair at the current position of the enumerator. The value is undefined before the first call to MoveNext() and after MoveNext() returns false.

Declaration

public readonly KeyValuePair<TKey, TValue> Current { get; }

Property Value

Type	Description
KeyValuePair<TKey, TValue>

Methods

MoveNext()

Advances the enumerator to the next occupied entry, skipping all empty and deleted slots.

Declaration

public bool MoveNext()

Returns

Type	Description
bool	true if the enumerator was successfully advanced to the next occupied entry and Current has been updated; false if the end of the table has been reached.