// 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.Immutable;
using Microsoft.CodeAnalysis.EmbeddedLanguages.Common;

namespace Microsoft.CodeAnalysis.EmbeddedLanguages.StackFrame;

using StackFrameTrivia = EmbeddedSyntaxTrivia<StackFrameKind>;

internal static class StackFrameExtensions
{
    /// <summary>
    /// Creates an <see cref="ImmutableArray{StackFrameTrivia}"/> with a single value or empty 
    /// if the <paramref name="trivia"/> has no value
    /// </summary>
    public static ImmutableArray<StackFrameTrivia> ToImmutableArray(this StackFrameTrivia? trivia)
        => trivia.HasValue ? [trivia.Value] : [];

    /// <summary>
    /// Creates an <see cref="ImmutableArray{StackFrameTrivia}"/> with a single trivia item in it
    /// </summary>
    /// <remarks>
    /// This is created for convenience so callers don't have to have different patterns between nullable and 
    /// non nullable calues
    /// </remarks>
    public static ImmutableArray<StackFrameTrivia> ToImmutableArray(this StackFrameTrivia trivia)
        => [trivia];
}
