/// <summary>
/// Creates a new instance of the <see cref="SeedInfoTree"/> that describes the seed build upon the <paramref name="seedTypes"/>.
/// </summary>
internal static SeedInfoTree Create(IEnumerable <Type> seedTypes)
{
Assert(seedTypes != null);
Assert(seedTypes.All(type => type.IsSeedType()));
SeedInfoTree result = new SeedInfoTree();
foreach (var seedType in seedTypes)
{
result.GetOrCreateSeedInfoFor(seedType);
}
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="SeedInfo"/> that describes the seed
/// represented by the <paramref name="seedType"/>.
/// </summary>
internal static SeedInfo CreateFor(Type seedType, SeedInfoTree seedInfoTree)
{
Debug.Assert(seedType != null);
Debug.Assert(seedType.IsSeedType());
Debug.Assert(seedInfoTree != null);
var seedOutputProperties = GetSeedOutputProperty();
// TODO: Check that we do not have any circular dependencies.
// TODO: Check all other things as well :-)
return(new SeedInfo(seedType, seedOutputProperties, GetExplicitDependencies().Concat(GetImplicitDependencies()).ToList()));
PropertyInfo[] GetSeedOutputProperty()
{
return(seedType
.GetProperties(BindingFlags.Instance | BindingFlags.Public)
.Where(property => property.IsSeedOutputProperty())
.ToArray());
}
IEnumerable <SeedInfo> GetImplicitDependencies()
{
return(seedOutputProperties
.Select(property => seedInfoTree.GetOrCreateSeedInfoFor(property.PropertyType.DeclaringType)));
}
IEnumerable <SeedInfo> GetExplicitDependencies()
{
// TODO: Add checks: SeedType != null. SeedType.IsSeedType().
return(seedType
.GetCustomAttributes(typeof(RequiresAttribute), false)
.Cast <RequiresAttribute>()
.Select(attribute => attribute.SeedOrScenarioType)
.Select(seedInfoTree.GetOrCreateSeedInfoFor));
}
}