/// <summary>
/// Get an activation expression for this strategy
/// </summary>
/// <param name="scope"></param>
/// <param name="request"></param>
/// <returns></returns>
public override IActivationExpressionResult GetActivationExpression(IInjectionScope scope, IActivationExpressionRequest request)
{
var requestType = request.ActivationType.GetTypeInfo().GenericTypeArguments[0];
var constructor = request.ActivationType.GetTypeInfo().DeclaredConstructors.First();
var newRequest = request.NewRequest(requestType, this, request.ActivationType, RequestType.Other, null, true);
var strategy = request.GetWrappedExportStrategy();
if (strategy == null)
{
throw new Exception("Could not find export stragegy to get metadata from");
}
var expressionResult = request.Services.ExpressionBuilder.GetActivationExpression(scope, newRequest);
var newExpression =
Expression.New(constructor, expressionResult.Expression, Expression.Constant(strategy.Metadata));
var newResult = request.Services.Compiler.CreateNewResult(request, newExpression);
newResult.AddExpressionResult(expressionResult);
return(newResult);
}
