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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Dnc.HostGenerator
{
using System;
using System.Diagnostics.CodeAnalysis;
using System.Text;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.Text;
[Generator]
public sealed class DncHostGenerator : ISourceGenerator
{
public static readonly string Version = String.Format($"{ThisAssembly.Git.SemVer.Major}.{ThisAssembly.Git.SemVer.Minor}.{ThisAssembly.Git.SemVer.Patch}{ThisAssembly.Git.SemVer.DashLabel}+{ThisAssembly.Git.Sha}");
public static readonly string TargetAttributeFullName = "WixToolset.Mba.Core.BootstrapperApplicationFactoryAttribute";
[SuppressMessage("MicrosoftCodeAnalysisReleaseTracking", "RS2008:Enable analyzer release tracking", Justification = "Tracking not needed")]
public static readonly DiagnosticDescriptor MissingFactoryAttributeDescriptor = new DiagnosticDescriptor(
"WIXBAL001",
$"Missing assembly level attribute {TargetAttributeFullName}.",
$"Add [assembly: {TargetAttributeFullName}(typeof(<your IBootstrapperApplicationFactory>)].",
"WixToolset.Bal.wixext",
DiagnosticSeverity.Error,
true
);
public void Initialize(GeneratorInitializationContext context)
{
}
public void Execute(GeneratorExecutionContext context)
{
var symbolDisplayFormat = new SymbolDisplayFormat(typeQualificationStyle: SymbolDisplayTypeQualificationStyle.NameAndContainingTypesAndNamespaces);
string baFactoryClassName = null;
foreach (var assemblyAttribute in context.Compilation.Assembly.GetAttributes())
{
var fullAssemblyTypeName = assemblyAttribute.AttributeClass.ToDisplayString(symbolDisplayFormat);
if (fullAssemblyTypeName == TargetAttributeFullName &&
assemblyAttribute.ConstructorArguments.Length == 1)
{
var arg = assemblyAttribute.ConstructorArguments[0];
if (arg.Value is INamedTypeSymbol argValue)
{
baFactoryClassName = argValue.ToDisplayString(symbolDisplayFormat);
break;
}
}
}
if (baFactoryClassName == null)
{
context.ReportDiagnostic(Diagnostic.Create(MissingFactoryAttributeDescriptor, null));
}
else
{
var source = String.Format(Template, Version, baFactoryClassName);
context.AddSource("WixToolset.Dnc.Host.g.cs", SourceText.From(source, Encoding.UTF8, SourceHashAlgorithm.Sha256));
}
}
public const string Template = @"
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
namespace WixToolset.Dnc.Host
{{
using System;
using System.CodeDom.Compiler;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using WixToolset.Mba.Core;
[GeneratedCode(""WixToolset.Dnc.HostGenerator.DncHostGenerator"", ""{0}"")]
[CompilerGenerated]
delegate IBootstrapperApplicationFactory StaticEntryDelegate();
/// <summary>
/// Entry point for the .NET Core host to create and return the BA to the engine.
/// </summary>
[GeneratedCode(""WixToolset.Dnc.HostGenerator.DncHostGenerator"", ""{0}"")]
[CompilerGenerated]
public sealed class BootstrapperApplicationFactory : IBootstrapperApplicationFactory
{{
/// <summary>
/// Creates the bootstrapper application factory and calls its IBootstrapperApplicationFactory.Create method.
/// </summary>
/// <param name=""pArgs"">Pointer to BOOTSTRAPPER_CREATE_ARGS struct.</param>
/// <param name=""pResults"">Pointer to BOOTSTRAPPER_CREATE_RESULTS struct.</param>
public void Create(IntPtr pArgs, IntPtr pResults)
{{
var baFactory = new {1}();
baFactory.Create(pArgs, pResults);
}}
// Entry point for the DNC host.
public static IBootstrapperApplicationFactory CreateBAFactory()
{{
return new BootstrapperApplicationFactory();
}}
#if NET5_0_OR_GREATER
[ModuleInitializer]
[DynamicDependency(DynamicallyAccessedMemberTypes.All, typeof(BootstrapperApplicationFactory))]
#if NET5_0
[DynamicDependency(""GetFunctionPointer(System.IntPtr,System.IntPtr,System.IntPtr,System.IntPtr,System.IntPtr,System.IntPtr)"", ""Internal.Runtime.InteropServices.ComponentActivator"", ""System.Private.CoreLib"")]
#endif
/// <summary>
/// Empty method to attach above attributes to support linker trimming.
/// </summary>
public static void ModuleInitialize() {{ }}
#endif
}}
}}
";
}
}
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