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[英]ASP.NET vNext - MissingMethodException: Method not found: Microsoft.CodeAnalysis.Diagnostic> EmitResult.get_Diagnostics()'
[英]How to get error line using Microsoft.CodeAnalysis.Diagnostic
祝你今天愉快。 我有這段代碼用於在運行時評估代碼:
SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText("Code goes here...");
string assemblyName = Path.GetRandomFileName();
string corePath = Path.GetDirectoryName(typeof(object).GetTypeInfo().Assembly.Location);
MetadataReference[] references = new MetadataReference[]
{
MetadataReference.CreateFromFile(typeof(object).Assembly.Location),
MetadataReference.CreateFromFile(typeof(Enumerable).Assembly.Location),
MetadataReference.CreateFromFile("Newtonsoft.Json.dll"),
MetadataReference.CreateFromFile(Path.Combine(corePath, "System.Net.dll")),
MetadataReference.CreateFromFile(Path.Combine(corePath, "System.Text.RegularExpressions.dll"))
};
CSharpCompilation compilation = CSharpCompilation.Create(
assemblyName,
syntaxTrees: new[] { syntaxTree },
references: references,
options: new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
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);
string errors = "";
foreach (Diagnostic diagnostic in failures)
{
errors += "<span style=\"text-align: center;\">Error <b>" + diagnostic.Id + "</b>: " + diagnostic.GetMessage() + "</span><br>";
}
return errors;
}
else
{
ms.Seek(0, SeekOrigin.Begin);
Assembly assembly = Assembly.Load(ms.ToArray());
Type type = assembly.GetType("NoteBoxCode.Program");
object obj = Activator.CreateInstance(type);
return type.InvokeMember("Main", BindingFlags.InvokeMethod, null, obj, null);
}
}
例如,當我收到錯誤時,它只會顯示: Error CS1520: Method must have a return type
我怎樣才能得到 output Error on line 2 CS1520: Method must have a return type
?
我已經嘗試過diagnostic.Location
,但我認為它返回了我不需要的裝配線位置。 有什么幫助嗎?
因此, CSharpCompilationOptions
不能返回錯誤行,因為它是運行時錯誤。 我需要一個高級調試 class,分別調試和運行每一行代碼,這就是(我認為)visual studio 所做的。
您可以使用SyntaxTree.GetDiagnostics()
來獲得語法錯誤的概述。 但是,這不會返回編譯錯誤,例如Console.WritLine
而不是Console.WriteLine
。
可能有人仍在試圖弄清楚。 in.Net 6 我能夠讓它工作
for (int i = 0; i < CompilationResults.Diagnostics.Length; i++)
{
var d = CompilationResults.Diagnostics[i];
var parts = d.ToString().Replace("(", "").Replace(")", "").Split(',');
var err = new ScriptError();
err.Line = parts[0];
err.ErrorNumber = "";
err.ErrorText = d.GetMessage();
if (d.Severity == DiagnosticSeverity.Error)
Results.Errors.Add(err);
else
Results.Warnings.Add(err);
}
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