我正在使用
RazorEngine
用于Razor模板解析并尝试使用其Roslyn代码。
我知道我的问题是我使用的是基类型(
ViewBase<t>
)在我的razor视图中,它没有被构造(因为它有一个ctor参数)。
然而,在谷歌搜索了很多之后,我找不到一个方法来判断
Emit()
如何创建我的类型的实例。
下面是它使用的代码-源代码生成良好,下面包含一个省略的版本。
我是否可以提供某种类型的工厂,用于生成这种类型?
当我调用emit时,我得到了错误
There is no argument given that corresponds to the required formal parameter 'componentContext' of 'ViewBase<MyModelType>.ViewBase(IComponentContext)'
-那么,我该如何告诉emit()如何创建我的类型的实例呢
ViewBase<T>
创建一个空的CTOR很好,但这不是我所需要的。
public override Tuple<Type, CompilationData> CompileType(TypeContext context)
{
var sourceCode = GetCodeCompileUnit(context);
var assemblyName = GetAssemblyName(context);
(new PermissionSet(PermissionState.Unrestricted)).Assert();
var tempDir = GetTemporaryDirectory();
var sourceCodeFile = Path.Combine(tempDir, String.Format("{0}.{1}", assemblyName, SourceFileExtension));
File.WriteAllText(sourceCodeFile, sourceCode);
var references = GetAllReferences(context);
var compilation =
GetEmptyCompilation(assemblyName)
.AddSyntaxTrees(
GetSyntaxTree(sourceCode, sourceCodeFile))
.AddReferences(GetMetadataReferences(references));
compilation =
compilation
.WithOptions(
CreateOptions(context)
.WithOutputKind(OutputKind.DynamicallyLinkedLibrary)
.WithPlatform(Platform.AnyCpu)
.WithSourceReferenceResolver(new RazorEngineSourceReferenceResolver(sourceCodeFile)));
var assemblyFile = Path.Combine(tempDir, String.Format("{0}.dll", assemblyName));
var assemblyPdbFile = Path.Combine(tempDir, String.Format("{0}.pdb", assemblyName));
var compilationData = new CompilationData(sourceCode, tempDir);
using (var assemblyStream = File.Open(assemblyFile, FileMode.Create, FileAccess.ReadWrite))
using (var pdbStream = File.Open(assemblyPdbFile, FileMode.Create, FileAccess.ReadWrite))
{
var opts = new EmitOptions()
.WithPdbFilePath(assemblyPdbFile);
var pdbStreamHelper = pdbStream;
if (IsMono())
{
opts = opts.WithDebugInformationFormat(DebugInformationFormat.PortablePdb);
}
var result = compilation.Emit(assemblyStream, pdbStreamHelper, options: opts);
}
}
我生成的视图代码
namespace CompiledRazorTemplates.Dynamic
{
#line default
#line hidden
;
using System;
public class RazorEngine_99d043dd3e3d4c3ca787d42dd7a0bb6b : ViewBase<MyModelType>
{
#line hidden
public RazorEngine_99d043dd3e3d4c3ca787d42dd7a0bb6b()
{
}
#pragma warning disable 1998
public override async Task Execute()
{
..... OMITTED
}
}
}
public ViewBase(IComponentContext componentContext)
{
Contract.Requires(componentContext != null);
_componentContext = componentContext;
}