' 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.
 
Imports System.Threading
Imports Microsoft.CodeAnalysis.PooledObjects
Imports Microsoft.CodeAnalysis.Structure
Imports Microsoft.CodeAnalysis.VisualBasic.Syntax
 
Namespace Microsoft.CodeAnalysis.VisualBasic.Structure
    Friend Class InterpolatedStringExpressionStructureProvider
        Inherits AbstractSyntaxNodeStructureProvider(Of InterpolatedStringExpressionSyntax)
 
        Protected Overrides Sub CollectBlockSpans(previousToken As SyntaxToken,
                                                  node As InterpolatedStringExpressionSyntax,
                                                  spans As ArrayBuilder(Of BlockSpan),
                                                  options As BlockStructureOptions,
                                                  cancellationToken As CancellationToken)
            If node.DollarSignDoubleQuoteToken.IsMissing OrElse
               node.DoubleQuoteToken.IsMissing Then
                Return
            End If
 
            spans.Add(New BlockSpan(
                type:=BlockTypes.Expression,
                isCollapsible:=True,
                textSpan:=node.Span,
                autoCollapse:=True,
                isDefaultCollapsed:=False))
        End Sub
    End Class
End Namespace