网上演练
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

166 lines
7.3 KiB

// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
#if !NET_4_6
using System.Dynamic.Utils;
namespace System.Linq.Expressions.Reimplement
{
#if NET20 || NET30 || NET35 || !NET_4_6
/// <summary>
/// Stores information needed to emit debugging symbol information for a
/// source file, in particular the file name and unique language identifier.
/// </summary>
public class SymbolDocumentInfo
{
private readonly string _fileName;
internal SymbolDocumentInfo(string fileName)
{
ContractUtils.RequiresNotNull(fileName, "fileName");
_fileName = fileName;
}
/// <summary>
/// The source file name.
/// </summary>
public string FileName
{
get { return _fileName; }
}
/// <summary>
/// Returns the language's unique identifier, if any.
/// </summary>
public virtual Guid Language
{
get { return Guid.Empty; }
}
/// <summary>
/// Returns the language vendor's unique identifier, if any.
/// </summary>
public virtual Guid LanguageVendor
{
get { return Guid.Empty; }
}
internal static readonly Guid DocumentTypeText = new Guid(0x5a869d0b, 0x6611, 0x11d3, 0xbd, 0x2a, 0, 0, 0xf8, 8, 0x49, 0xbd);
/// <summary>
/// Returns the document type's unique identifier, if any.
/// Defaults to the guid for a text file.
/// </summary>
public virtual Guid DocumentType
{
get { return DocumentTypeText; }
}
}
internal sealed class SymbolDocumentWithGuids : SymbolDocumentInfo
{
private readonly Guid _language;
private readonly Guid _vendor;
private readonly Guid _documentType;
internal SymbolDocumentWithGuids(string fileName, ref Guid language)
: base(fileName)
{
_language = language;
_documentType = DocumentTypeText;
}
internal SymbolDocumentWithGuids(string fileName, ref Guid language, ref Guid vendor)
: base(fileName)
{
_language = language;
_vendor = vendor;
_documentType = DocumentTypeText;
}
internal SymbolDocumentWithGuids(string fileName, ref Guid language, ref Guid vendor, ref Guid documentType)
: base(fileName)
{
_language = language;
_vendor = vendor;
_documentType = documentType;
}
public override Guid Language
{
get { return _language; }
}
public override Guid LanguageVendor
{
get { return _vendor; }
}
public override Guid DocumentType
{
get { return _documentType; }
}
}
#endif
#if NET20 || NET30 || !NET_4_6
public partial class Expression
{
/// <summary>
/// Creates an instance of <see cref="T:System.Linq.Expressions.SymbolDocumentInfo" />.
/// </summary>
/// <param name="fileName">A <see cref="T:System.String" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.FileName" /> equal to.</param>
/// <returns>A <see cref="T:System.Linq.Expressions.SymbolDocumentInfo" /> that has the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.FileName" /> property set to the specified value.</returns>
public static SymbolDocumentInfo SymbolDocument(string fileName)
{
return new SymbolDocumentInfo(fileName);
}
/// <summary>
/// Creates an instance of <see cref="T:System.Linq.Expressions.SymbolDocumentInfo" />.
/// </summary>
/// <param name="fileName">A <see cref="T:System.String" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.FileName" /> equal to.</param>
/// <param name="language">A <see cref="T:System.Guid" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.Language" /> equal to.</param>
/// <returns>A <see cref="T:System.Linq.Expressions.SymbolDocumentInfo" /> that has the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.FileName" />
/// and <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.Language" /> properties set to the specified value.</returns>
public static SymbolDocumentInfo SymbolDocument(string fileName, Guid language)
{
return new SymbolDocumentWithGuids(fileName, ref language);
}
/// <summary>
/// Creates an instance of <see cref="T:System.Linq.Expressions.SymbolDocumentInfo" />.
/// </summary>
/// <param name="fileName">A <see cref="T:System.String" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.FileName" /> equal to.</param>
/// <param name="language">A <see cref="T:System.Guid" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.Language" /> equal to.</param>
/// <param name="languageVendor">A <see cref="T:System.Guid" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.LanguageVendor" /> equal to.</param>
/// <returns>A <see cref="T:System.Linq.Expressions.SymbolDocumentInfo" /> that has the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.FileName" />
/// and <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.Language" />
/// and <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.LanguageVendor" /> properties set to the specified value.</returns>
public static SymbolDocumentInfo SymbolDocument(string fileName, Guid language, Guid languageVendor)
{
return new SymbolDocumentWithGuids(fileName, ref language, ref languageVendor);
}
/// <summary>
/// Creates an instance of <see cref="T:System.Linq.Expressions.SymbolDocumentInfo" />.
/// </summary>
/// <param name="fileName">A <see cref="T:System.String" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.FileName" /> equal to.</param>
/// <param name="language">A <see cref="T:System.Guid" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.Language" /> equal to.</param>
/// <param name="languageVendor">A <see cref="T:System.Guid" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.LanguageVendor" /> equal to.</param>
/// <param name="documentType">A <see cref="T:System.Guid" /> to set the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.DocumentType" /> equal to.</param>
/// <returns>A <see cref="T:System.Linq.Expressions.SymbolDocumentInfo" /> that has the <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.FileName" />
/// and <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.Language" />
/// and <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.LanguageVendor" />
/// and <see cref="P:System.Linq.Expressions.SymbolDocumentInfo.DocumentType" /> properties set to the specified value.</returns>
public static SymbolDocumentInfo SymbolDocument(string fileName, Guid language, Guid languageVendor, Guid documentType)
{
return new SymbolDocumentWithGuids(fileName, ref language, ref languageVendor, ref documentType);
}
}
#endif
}
#endif