[英]How to get roslyn to compile when referenced assemblies have references to both mscorlib 2.0.5.0 and 4.0.0.0
我正在动态构建一个使用Microsoft.OData.Client的类,这个库引用了mscorlib 2.0.5.0(我猜PCL)和4.0.0.0。
我想用roslyn编译我的类,作为一个更大的程序的一部分,但我似乎无法让它工作。 我的Roslyn编译器代码非常简约
SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(s);
string assemblyName = Path.GetRandomFileName();
List<MetadataReference> references = new List<MetadataReference>()
{
MetadataReference.CreateFromFile(typeof(DataServiceActionQuery).Assembly.Location),
MetadataReference.CreateFromFile(typeof(ODataAction).Assembly.Location),
MetadataReference.CreateFromFile(typeof(GeneratedCodeAttribute).Assembly.Location),
MetadataReference.CreateFromFile(typeof(IEdmModel).Assembly.Location),
MetadataReference.CreateFromFile(typeof(TimeOfDay).Assembly.Location),
MetadataReference.CreateFromFile(typeof(object).Assembly.Location),
MetadataReference.CreateFromFile(typeof(Enumerable).Assembly.Location),
MetadataReference.CreateFromFile(typeof(XmlDocument).Assembly.Location),
// MetadataReference.CreateFromFile(@"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETPortable\v4.0\Profile\Profile328\mscorlib.dll")
};
references.AddRange(Directory.GetFiles(@"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\Facades").Select(f => MetadataReference.CreateFromFile(f)));
var op = new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary);
//op.WithAssemblyIdentityComparer(DesktopAssemblyIdentityComparer.Default);
//CSharpCompilationOptions.WithAssemblyIdentityComparer(DesktopAssemblyIdentityComparer.Default);
CSharpCompilation compilation = CSharpCompilation.Create(
assemblyName,
syntaxTrees: new[] { syntaxTree },
references: references,
options: op);
Assembly assembly = null;
using (var ms = new MemoryStream())
{
EmitResult result = compilation.Emit(ms);
if (!result.Success)
{
IEnumerable<Diagnostic> failures = result.Diagnostics.Where(diagnostic =>
//diagnostic.IsWarningAsError ||
diagnostic.Severity == DiagnosticSeverity.Error);
foreach (Diagnostic diagnostic in failures)
{
Console.Error.WriteLine("{0}: {1}", diagnostic.Id, diagnostic.GetMessage());
}
}
else
{
ms.Seek(0, SeekOrigin.Begin);
assembly = Assembly.Load(ms.ToArray());
}
}
这些是我得到的错误
CS0012:类型“对象”在未引用的程序集中定义。 您必须添加对程序集'mscorlib,Version = 2.0.5.0,Culture = neutral,PublicKeyToken = 7cec85d7bea7798e,Retargetable = Yes'的引用。
CS0012:类型'XmlReader'在未引用的程序集中定义。 您必须添加对程序集'System.Xml,Version = 2.0.5.0,Culture = neutral,PublicKeyToken = 7cec85d7bea7798e,Retargetable = Yes'的引用。
正如您在评论中预测的那样, DesktopAssemblyIdentityComparer
就是解决方案。 但是, CSharpCompilationOptions
是不可变的,并且WithAssemblyIdentityComparer
方法返回一个新实例,因此您必须像这样使用它:
var op = new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary);
op = op.WithAssemblyIdentityComparer(DesktopAssemblyIdentityComparer.Default);
CSharpCompilation compilation = CSharpCompilation.Create(
assemblyName,
syntaxTrees: new[] { syntaxTree },
references: references,
options: op);
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