// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System.Collections.Generic;
using System.Collections.Immutable;
using Microsoft.CodeAnalysis.PooledObjects;
namespace Microsoft.CodeAnalysis;
internal partial struct SymbolKey
{
private readonly ref struct PooledArrayBuilder<T>
{
public readonly ArrayBuilder<T> Builder;
private PooledArrayBuilder(ArrayBuilder<T> builder)
=> Builder = builder;
public bool IsDefault => Builder == null;
public int Count => Builder.Count;
public T this[int index] => Builder[index];
public void AddIfNotNull(T? value)
{
if (value != null)
{
Builder.Add(value);
}
}
public void Dispose() => Builder?.Free();
public ImmutableArray<T> ToImmutable() => Builder.ToImmutable();
public ArrayBuilder<T>.Enumerator GetEnumerator() => Builder.GetEnumerator();
public static PooledArrayBuilder<T> GetInstance()
=> new(ArrayBuilder<T>.GetInstance());
public static PooledArrayBuilder<T> GetInstance(int capacity)
=> new(ArrayBuilder<T>.GetInstance(capacity));
public void AddValuesIfNotNull(IEnumerable<T> values)
{
foreach (var value in values)
{
AddIfNotNull(value);
}
}
public void AddValuesIfNotNull(ImmutableArray<T> values)
{
foreach (var value in values)
{
AddIfNotNull(value);
}
}
}
}
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