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// 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.
#nullable disable
using Microsoft.CodeAnalysis.CSharp.Symbols;
namespace Microsoft.CodeAnalysis.CSharp
{
/// <summary>
/// Additional information for rewriting an async-iterator.
/// </summary>
internal sealed class AsyncIteratorInfo
{
// This `ManualResetValueTaskSourceCore<bool>` struct implements the `IValueTaskSource` logic
internal FieldSymbol PromiseOfValueOrEndField { get; }
// This `CancellationTokenSource` field helps combine two cancellation tokens
internal FieldSymbol CombinedTokensField { get; }
// Stores the current/yielded value
internal FieldSymbol CurrentField { get; }
// Whether the state machine is in dispose mode
internal FieldSymbol DisposeModeField { get; }
// Method to fulfill the promise with a result: `void ManualResetValueTaskSourceCore<T>.SetResult(T result)`
internal MethodSymbol SetResultMethod { get; }
// Method to fulfill the promise with an exception: `void ManualResetValueTaskSourceCore<T>.SetException(Exception error)`
internal MethodSymbol SetExceptionMethod { get; }
public AsyncIteratorInfo(FieldSymbol promiseOfValueOrEndField, FieldSymbol combinedTokensField, FieldSymbol currentField, FieldSymbol disposeModeField,
MethodSymbol setResultMethod, MethodSymbol setExceptionMethod)
{
PromiseOfValueOrEndField = promiseOfValueOrEndField;
CombinedTokensField = combinedTokensField;
CurrentField = currentField;
DisposeModeField = disposeModeField;
SetResultMethod = setResultMethod;
SetExceptionMethod = setExceptionMethod;
}
}
}
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