private IActivationExpressionResult GetExpressionFromDependentStrategy(IInjectionScope scope,
IActivationExpressionRequest request)
{
var newRequest = request.NewRequest(_dependentStrategy.ActivationType, this, request.InjectedType,
request.RequestType, request.Info, true, true);
var instanceResult = _dependentStrategy.GetActivationExpression(scope, newRequest);
Expression propertyExpression;
try
{
propertyExpression = Expression.PropertyOrField(instanceResult.Expression, _propertyOrFieldName);
}
catch (Exception exp)
{
throw new LocateException(request.GetStaticInjectionContext(), exp, $"Could not create property/field expression for {_propertyOrFieldName} on type {instanceResult.Expression.Type.FullName}");
}
var expressionResult = request.Services.Compiler.CreateNewResult(request, propertyExpression);
expressionResult.AddExpressionResult(instanceResult);
return(expressionResult);
}
private IActivationExpressionResult GetExpressionFromDependentStrategy(IInjectionScope scope, IActivationExpressionRequest request)
{
var newRequest = request.NewRequest(_dependentStrategy.ActivationType, this, request.InjectedType, request.RequestType, request.Info, true, true);
var instanceResult = _dependentStrategy.GetActivationExpression(scope, newRequest);
var results = new List <IActivationExpressionResult> {
instanceResult
};
var parameterExpressions = new List <Expression>();
foreach (var parameterInfo in _methodInfo.GetParameters())
{
newRequest = request.NewRequest(parameterInfo.ParameterType, this, _dependentStrategy.ActivationType,
RequestType.MethodParameter, parameterInfo, false, true);
var parameterResult = request.Services.ExpressionBuilder.GetActivationExpression(scope, newRequest);
results.Add(parameterResult);
parameterExpressions.Add(parameterResult.Expression);
}
var expression = Expression.Call(instanceResult.Expression, _methodInfo, parameterExpressions);
var result = request.Services.Compiler.CreateNewResult(request, expression);
foreach (var expressionResult in results)
{
result.AddExpressionResult(expressionResult);
}
return(result);
}
/// <summary>
/// Gets an activation expression for a given strategy
/// </summary>
/// <param name="scope"></param>
/// <param name="request"></param>
/// <param name="strategy"></param>
/// <returns></returns>
protected virtual IActivationExpressionResult ActivationExpressionForStrategy(IInjectionScope scope, IActivationExpressionRequest request, ICompiledExportStrategy strategy)
{
return(strategy.GetActivationExpression(scope, request));
}