private static CompilerResult DoCompilation(string code)
{
var csharpSyntaxTree = BuildSyntaxTree(code);
var compilation = CSharpCompilation.Create(
Path.GetRandomFileName(),
new[] { csharpSyntaxTree },
References,
new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
using (var ms = new MemoryStream())
{
var emitResult = compilation.Emit(ms);
var output = new CompilerResult
{
Success = emitResult.Success,
Messages = emitResult.Diagnostics.ToList()
};
if (emitResult.Success)
{
var type = Assembly.Load(ms.GetBuffer())
.GetTypes()
.FirstOrDefault(t => t.Name == "ExpressionClass");
var delegateObject = type
?.GetMethod("CreateDelegate", BindingFlags.Static | BindingFlags.Public)
?.Invoke(null, new object[0]) as System.Delegate;
output.ReturnType = delegateObject?.GetType().GetGenericArguments()[0];
output.Execute = delegateObject;
}
return(output);
}
}
protected override void OnInitCalled()
{
var code = GetCodeFromLambda(this.ConfigObject.LambdaCode);
this._result = Compiler.Compile(code);
foreach (var resultMessage in this._result.Messages)
{
this.Engine.OutputMessage(this.NToolId, MessageStatus.STATUS_Info, resultMessage.GetMessage());
}
if (!this._result.Success)
{
this.Engine.OutputMessage(
this.NToolId,
MessageStatus.STATUS_Error,
"Compilation Failed.");
return;
}
var sampleType = this._result.ReturnType;
this._descriptions = FieldDescriptionsFromType(sampleType);
}