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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Web.Razor.Generator;
using System.Web.Razor.Parser;
namespace System.Web.Razor
{
/// <summary>
/// Represents a code language in Razor.
/// </summary>
public abstract class RazorCodeLanguage
{
private static IDictionary<string, RazorCodeLanguage> _services = new Dictionary<string, RazorCodeLanguage>(StringComparer.OrdinalIgnoreCase)
{
{ "cshtml", new CSharpRazorCodeLanguage() },
{ "vbhtml", new VBRazorCodeLanguage() }
};
/// <summary>
/// Gets the list of registered languages mapped to file extensions (without a ".")
/// </summary>
public static IDictionary<string, RazorCodeLanguage> Languages
{
get { return _services; }
}
/// <summary>
/// The name of the language (for use in System.Web.Compilation.BuildProvider.GetDefaultCompilerTypeForLanguage)
/// </summary>
public abstract string LanguageName { get; }
/// <summary>
/// The type of the CodeDOM provider for this language
/// </summary>
public abstract Type CodeDomProviderType { get; }
/// <summary>
/// Gets the RazorCodeLanguage registered for the specified file extension
/// </summary>
/// <param name="fileExtension">The extension, with or without a "."</param>
/// <returns>The language registered for that extension</returns>
public static RazorCodeLanguage GetLanguageByExtension(string fileExtension)
{
RazorCodeLanguage service = null;
Languages.TryGetValue(fileExtension.TrimStart('.'), out service);
return service;
}
/// <summary>
/// Constructs the code parser. Must return a new instance on EVERY call to ensure thread-safety
/// </summary>
public abstract ParserBase CreateCodeParser();
/// <summary>
/// Constructs the code generator. Must return a new instance on EVERY call to ensure thread-safety
/// </summary>
public abstract RazorCodeGenerator CreateCodeGenerator(string className, string rootNamespaceName, string sourceFileName, RazorEngineHost host);
}
}
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