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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.
using System.Threading;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.PooledObjects;
using Microsoft.CodeAnalysis.Structure;
namespace Microsoft.CodeAnalysis.CSharp.Structure;
internal class EnumDeclarationStructureProvider : AbstractSyntaxNodeStructureProvider<EnumDeclarationSyntax>
{
protected override void CollectBlockSpans(
SyntaxToken previousToken,
EnumDeclarationSyntax enumDeclaration,
ArrayBuilder<BlockSpan> spans,
BlockStructureOptions options,
CancellationToken cancellationToken)
{
CSharpStructureHelpers.CollectCommentBlockSpans(enumDeclaration, spans, options);
if (!enumDeclaration.OpenBraceToken.IsMissing &&
!enumDeclaration.CloseBraceToken.IsMissing)
{
SyntaxNodeOrToken current = enumDeclaration;
var nextSibling = current.GetNextSibling();
// Check IsNode to compress blank lines after this node if it is the last child of the parent.
//
// Whitespace between type declarations is collapsed in Metadata as Source.
var compressEmptyLines = options.IsMetadataAsSource
&& (!nextSibling.IsNode || nextSibling.AsNode() is BaseTypeDeclarationSyntax);
spans.AddIfNotNull(CSharpStructureHelpers.CreateBlockSpan(
enumDeclaration,
enumDeclaration.Identifier,
compressEmptyLines: compressEmptyLines,
autoCollapse: false,
type: BlockTypes.Member,
isCollapsible: true));
}
// add any leading comments before the end of the type block
if (!enumDeclaration.CloseBraceToken.IsMissing)
{
var leadingTrivia = enumDeclaration.CloseBraceToken.LeadingTrivia;
CSharpStructureHelpers.CollectCommentBlockSpans(leadingTrivia, spans);
}
}
}
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