private Expression ReplacePlaceHoldersWithOverriddenParameters(Expression expression)
{
if (this.overriddenParameters != null)
{
foreach (var overriddenParameter in this.overriddenParameters.Values)
{
expression = SubExpressionReplacer.Replace(
expressionToAlter: expression,
nodeToFind: overriddenParameter.PlaceHolder,
replacementNode: overriddenParameter.Expression);
}
}
return(expression);
}
private Func <object, object> BuildDelegate()
{
PropertyInfo[] propertiesToInject = this.GetInjectableProperties();
var dummyExpression = Expression.Constant(null, this.Type);
var propertyInjectionExpression = PropertyInjectionHelper.BuildPropertyInjectionExpression(
this.container, this.Type, propertiesToInject, dummyExpression);
var parameter = Expression.Parameter(typeof(object));
propertyInjectionExpression = SubExpressionReplacer.Replace(
expressionToAlter: propertyInjectionExpression,
subExpressionToFind: dummyExpression,
replacementExpression: Expression.Convert(parameter, this.Type));
return(Expression.Lambda <Func <object, object> >(propertyInjectionExpression, parameter).Compile());
}
