/// <summary>
/// Prepares generation by processing the result of code parsing.
/// </summary>
private void Prepare()
{
TypeModel.MapModelTypes(TypeModels, ModelsNamespace);
var isInMemoryMode = Config.ModelsMode == ModelsMode.InMemoryAuto;
// for the first two of these two tests,
// always throw, even in InMemory mode: cannot happen unless ppl start fidling with attributes to rename
// things, and then they should pay attention to the generation error log - there's no magic here
// for the last one, don't throw in InMemory mode, see comment
// ensure we have no duplicates type names
foreach (var xx in TypeModels.GroupBy(x => x.ClrName).Where(x => x.Count() > 1))
{
throw new InvalidOperationException($"Type name \"{xx.Key}\" is used"
+ $" for types with alias {string.Join(", ", xx.Select(x => x.ItemType + ":\"" + x.Alias + "\""))}. Names have to be unique."
+ " Consider using an attribute to assign different names to conflicting types.");
}
// ensure we have no duplicates property names
foreach (var typeModel in TypeModels)
{
foreach (var xx in typeModel.Properties.GroupBy(x => x.ClrName).Where(x => x.Count() > 1))
{
throw new InvalidOperationException($"Property name \"{xx.Key}\" in type {typeModel.ItemType}:\"{typeModel.Alias}\""
+ $" is used for properties with alias {string.Join(", ", xx.Select(x => "\"" + x.Alias + "\""))}. Names have to be unique."
+ " Consider using an attribute to assign different names to conflicting properties.");
}
}
// ensure content & property type don't have identical name (csharp hates it)
foreach (var typeModel in TypeModels)
{
foreach (var xx in typeModel.Properties.Where(x => x.ClrName == typeModel.ClrName))
{
if (!isInMemoryMode)
{
throw new InvalidOperationException($"The model class for content type with alias \"{typeModel.Alias}\" is named \"{xx.ClrName}\"."
+ $" CSharp does not support using the same name for the property with alias \"{xx.Alias}\"."
+ " Consider using an attribute to assign a different name to the property.");
}
// in InMemory mode we generate commented out properties with an error message,
// instead of throwing, because then it kills the sites and ppl don't understand why
xx.AddError($"The class {typeModel.ClrName} cannot implement this property, because"
+ $" CSharp does not support naming the property with alias \"{xx.Alias}\" with the same name as content type with alias \"{typeModel.Alias}\"."
+ " Consider using an attribute to assign a different name to the property.");
// will not be implemented on interface nor class
// note: we will still create the static getter, and implement the property on other classes...
}
}
// ensure we have no collision between base types
// NO: we may want to define a base class in a partial, on a model that has a parent
// we are NOT checking that the defined base type does maintain the inheritance chain
//foreach (var xx in _typeModels.Where(x => !x.IsContentIgnored).Where(x => x.BaseType != null && x.HasBase))
// throw new InvalidOperationException(string.Format("Type alias \"{0}\" has more than one parent class.",
// xx.Alias));
// discover interfaces that need to be declared / implemented
foreach (var typeModel in TypeModels)
{
// collect all the (non-removed) types implemented at parent level
// ie the parent content types and the mixins content types, recursively
var parentImplems = new List <TypeModel>();
if (typeModel.BaseType != null)
{
TypeModel.CollectImplems(parentImplems, typeModel.BaseType);
}
// interfaces we must declare we implement (initially empty)
// ie this type's mixins, except those that have been removed,
// and except those that are already declared at the parent level
// in other words, DeclaringInterfaces is "local mixins"
var declaring = typeModel.MixinTypes
.Except(parentImplems);
typeModel.DeclaringInterfaces.AddRange(declaring);
// interfaces we must actually implement (initially empty)
// if we declare we implement a mixin interface, we must actually implement
// its properties, all recursively (ie if the mixin interface implements...)
// so, starting with local mixins, we collect all the (non-removed) types above them
var mixinImplems = new List <TypeModel>();
foreach (var i in typeModel.DeclaringInterfaces)
{
TypeModel.CollectImplems(mixinImplems, i);
}
// and then we remove from that list anything that is already declared at the parent level
typeModel.ImplementingInterfaces.AddRange(mixinImplems.Except(parentImplems));
}
// ensure elements don't inherit from non-elements
foreach (var typeModel in TypeModels.Where(x => x.IsElement))
{
if (typeModel.BaseType != null && !typeModel.BaseType.IsElement)
{
throw new InvalidOperationException($"Cannot generate model for type '{typeModel.Alias}' because it is an element type, but its parent type '{typeModel.BaseType.Alias}' is not.");
}
var errs = typeModel.MixinTypes.Where(x => !x.IsElement).ToList();
if (errs.Count > 0)
{
throw new InvalidOperationException($"Cannot generate model for type '{typeModel.Alias}' because it is an element type, but it is composed of {string.Join(", ", errs.Select(x => "'" + x.Alias + "'"))} which {(errs.Count == 1 ? "is" : "are")} not.");
}
}
}
