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SymbolDefinitionTextWriter.cs
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SymbolDefinitionTextWriter.cs
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// Copyright (c) .NET Foundation and Contributors. Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.IO;
using Microsoft.CodeAnalysis;
using Roslynator.FindSymbols;
namespace Roslynator.Documentation;
internal class SymbolDefinitionTextWriter : AbstractSymbolDefinitionTextWriter
{
private TextWriter _writer;
private bool _pendingIndentation;
public SymbolDefinitionTextWriter(
TextWriter writer,
SymbolFilterOptions filter = null,
DefinitionListFormat format = null,
SymbolDocumentationProvider documentationProvider = null,
INamedTypeSymbol hierarchyRoot = null) : base(filter, format, documentationProvider, hierarchyRoot)
{
_writer = writer;
}
public override bool SupportsDocumentationComments => true;
public override bool SupportsMultilineDefinitions => true;
public override void WriteStartNamespaces()
{
WriteLine();
}
public override void WriteNamespaceSeparator()
{
WriteLine();
}
public override void WriteStartTypes()
{
WriteLine();
}
public override void WriteTypeSeparator()
{
WriteLine();
}
public override void WriteStartMembers()
{
WriteLine();
}
public override void WriteMemberSeparator()
{
WriteLine();
}
public override void WriteStartEnumMembers()
{
WriteLine();
}
public override void WriteEnumMemberSeparator()
{
if (Format.EmptyLineBetweenMembers)
WriteLine();
}
public override void Write(SymbolDisplayPart part)
{
base.Write(part);
if (part.Kind == SymbolDisplayPartKind.LineBreak)
_pendingIndentation = true;
}
public override void Write(string value)
{
if (_pendingIndentation)
WriteIndentation();
_writer.Write(value);
}
public override void WriteLine()
{
_writer.WriteLine();
_pendingIndentation = true;
}
protected override void WriteIndentation()
{
_pendingIndentation = false;
for (int i = 0; i < Depth; i++)
{
Write(Format.IndentChars);
}
}
public override void WriteDocumentationComment(ISymbol symbol)
{
IEnumerable<string> elements = DocumentationProvider?.GetXmlDocumentation(symbol)?.GetElementsAsText(skipEmptyElement: true, makeSingleLine: true);
if (elements is null)
return;
foreach (string element in elements)
WriteDocumentation(element);
void WriteDocumentation(string element)
{
using (var sr = new StringReader(element))
{
string line = null;
while ((line = sr.ReadLine()) is not null)
{
WriteLine(line);
WriteIndentation();
}
}
}
}
public override void Close()
{
if (_writer is not null)
{
try
{
_writer.Flush();
}
finally
{
try
{
_writer.Dispose();
}
finally
{
_writer = null;
}
}
}
}
}