/// <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.");
}
}
}
private void WriteProperty(StringBuilder sb, TypeModel type, PropertyModel property, string?mixinClrName = null)
{
var mixinStatic = mixinClrName != null;
sb.Append("\n");
if (property.Errors != null)
{
sb.Append("\t\t/*\n");
sb.Append("\t\t * THIS PROPERTY CANNOT BE IMPLEMENTED, BECAUSE:\n");
sb.Append("\t\t *\n");
var first = true;
foreach (var error in property.Errors)
{
if (first)
{
first = false;
}
else
{
sb.Append("\t\t *\n");
}
foreach (var s in SplitError(error))
{
sb.Append("\t\t * ");
sb.Append(s);
sb.Append("\n");
}
}
sb.Append("\t\t *\n");
sb.Append("\n");
}
// Adds xml summary to each property containing
// property name and property description
if (!string.IsNullOrWhiteSpace(property.Name) || !string.IsNullOrWhiteSpace(property.Description))
{
sb.Append("\t\t///<summary>\n");
if (!string.IsNullOrWhiteSpace(property.Description))
{
sb.AppendFormat("\t\t/// {0}: {1}\n", XmlCommentString(property.Name), XmlCommentString(property.Description));
}
else
{
sb.AppendFormat("\t\t/// {0}\n", XmlCommentString(property.Name));
}
sb.Append("\t\t///</summary>\n");
}
WriteGeneratedCodeAttribute(sb, "\t\t");
if (!property.ModelClrType.IsValueType)
{
WriteMaybeNullAttribute(sb, "\t\t");
}
sb.AppendFormat("\t\t[ImplementPropertyType(\"{0}\")]\n", property.Alias);
if (mixinStatic)
{
sb.Append("\t\tpublic virtual ");
WriteClrType(sb, property.ClrTypeName);
sb.AppendFormat(" {0} => {1}(this, _publishedValueFallback);\n",
property.ClrName, MixinStaticGetterName(property.ClrName));
}
else
{
sb.Append("\t\tpublic virtual ");
WriteClrType(sb, property.ClrTypeName);
sb.AppendFormat(" {0} => this.Value",
property.ClrName);
if (property.ModelClrType != typeof(object))
{
sb.Append("<");
WriteClrType(sb, property.ClrTypeName);
sb.Append(">");
}
sb.AppendFormat("(_publishedValueFallback, \"{0}\");\n",
property.Alias);
}
if (property.Errors != null)
{
sb.Append("\n");
sb.Append("\t\t *\n");
sb.Append("\t\t */\n");
}
if (!mixinStatic)
{
return;
}
var mixinStaticGetterName = MixinStaticGetterName(property.ClrName);
//if (type.StaticMixinMethods.Contains(mixinStaticGetterName)) return;
sb.Append("\n");
if (!string.IsNullOrWhiteSpace(property.Name))
{
sb.AppendFormat("\t\t/// <summary>Static getter for {0}</summary>\n", XmlCommentString(property.Name));
}
WriteGeneratedCodeAttribute(sb, "\t\t");
if (!property.ModelClrType.IsValueType)
{
WriteMaybeNullAttribute(sb, "\t\t", true);
}
sb.Append("\t\tpublic static ");
WriteClrType(sb, property.ClrTypeName);
sb.AppendFormat(" {0}(I{1} that, IPublishedValueFallback publishedValueFallback) => that.Value",
mixinStaticGetterName, mixinClrName);
if (property.ModelClrType != typeof(object))
{
sb.Append("<");
WriteClrType(sb, property.ClrTypeName);
sb.Append(">");
}
sb.AppendFormat("(publishedValueFallback, \"{0}\");\n",
property.Alias);
}
protected string GetModelsBaseClassName(TypeModel type)
{
// default
return(type.IsElement ? "PublishedElementModel" : "PublishedContentModel");
}
private void WriteContentType(StringBuilder sb, TypeModel type)
{
string sep;
if (type.IsMixin)
{
// write the interface declaration
sb.AppendFormat("\t// Mixin Content Type with alias \"{0}\"\n", type.Alias);
if (!string.IsNullOrWhiteSpace(type.Name))
{
sb.AppendFormat("\t/// <summary>{0}</summary>\n", XmlCommentString(type.Name));
}
sb.AppendFormat("\tpublic partial interface I{0}", type.ClrName);
var implements = type.BaseType == null
? (type.HasBase ? null : (type.IsElement ? "PublishedElement" : "PublishedContent"))
: type.BaseType.ClrName;
if (implements != null)
{
sb.AppendFormat(" : I{0}", implements);
}
// write the mixins
sep = implements == null ? ":" : ",";
foreach (var mixinType in type.DeclaringInterfaces.OrderBy(x => x.ClrName))
{
sb.AppendFormat("{0} I{1}", sep, mixinType.ClrName);
sep = ",";
}
sb.Append("\n\t{\n");
// write the properties - only the local (non-ignored) ones, we're an interface
var more = false;
foreach (var prop in type.Properties.OrderBy(x => x.ClrName))
{
if (more)
{
sb.Append("\n");
}
more = true;
WriteInterfaceProperty(sb, prop);
}
sb.Append("\t}\n\n");
}
// write the class declaration
if (!string.IsNullOrWhiteSpace(type.Name))
{
sb.AppendFormat("\t/// <summary>{0}</summary>\n", XmlCommentString(type.Name));
}
// cannot do it now. see note in ImplementContentTypeAttribute
//if (!type.HasImplement)
// sb.AppendFormat("\t[ImplementContentType(\"{0}\")]\n", type.Alias);
sb.AppendFormat("\t[PublishedModel(\"{0}\")]\n", type.Alias);
sb.AppendFormat("\tpublic partial class {0}", type.ClrName);
var inherits = type.HasBase
? null // has its own base already
: (type.BaseType == null
? GetModelsBaseClassName(type)
: type.BaseType.ClrName);
if (inherits != null)
{
sb.AppendFormat(" : {0}", inherits);
}
sep = inherits == null ? ":" : ",";
if (type.IsMixin)
{
// if it's a mixin it implements its own interface
sb.AppendFormat("{0} I{1}", sep, type.ClrName);
}
else
{
// write the mixins, if any, as interfaces
// only if not a mixin because otherwise the interface already has them already
foreach (var mixinType in type.DeclaringInterfaces.OrderBy(x => x.ClrName))
{
sb.AppendFormat("{0} I{1}", sep, mixinType.ClrName);
sep = ",";
}
}
// begin class body
sb.Append("\n\t{\n");
// write the constants & static methods
// as 'new' since parent has its own - or maybe not - disable warning
sb.Append("\t\t// helpers\n");
sb.Append("#pragma warning disable 0109 // new is redundant\n");
WriteGeneratedCodeAttribute(sb, "\t\t");
sb.AppendFormat("\t\tpublic new const string ModelTypeAlias = \"{0}\";\n",
type.Alias);
var itemType = type.IsElement ? TypeModel.ItemTypes.Content : type.ItemType; // fixme
WriteGeneratedCodeAttribute(sb, "\t\t");
sb.AppendFormat("\t\tpublic new const PublishedItemType ModelItemType = PublishedItemType.{0};\n",
itemType);
WriteGeneratedCodeAttribute(sb, "\t\t");
WriteMaybeNullAttribute(sb, "\t\t", true);
sb.Append("\t\tpublic new static IPublishedContentType GetModelContentType(IPublishedSnapshotAccessor publishedSnapshotAccessor)\n");
sb.Append("\t\t\t=> PublishedModelUtility.GetModelContentType(publishedSnapshotAccessor, ModelItemType, ModelTypeAlias);\n");
WriteGeneratedCodeAttribute(sb, "\t\t");
WriteMaybeNullAttribute(sb, "\t\t", true);
sb.AppendFormat("\t\tpublic static IPublishedPropertyType GetModelPropertyType<TValue>(IPublishedSnapshotAccessor publishedSnapshotAccessor, Expression<Func<{0}, TValue>> selector)\n",
type.ClrName);
sb.Append("\t\t\t=> PublishedModelUtility.GetModelPropertyType(GetModelContentType(publishedSnapshotAccessor), selector);\n");
sb.Append("#pragma warning restore 0109\n\n");
sb.Append("\t\tprivate IPublishedValueFallback _publishedValueFallback;");
// write the ctor
sb.AppendFormat("\n\n\t\t// ctor\n\t\tpublic {0}(IPublished{1} content, IPublishedValueFallback publishedValueFallback)\n\t\t\t: base(content, publishedValueFallback)\n\t\t{{\n\t\t\t_publishedValueFallback = publishedValueFallback;\n\t\t}}\n\n",
type.ClrName, type.IsElement ? "Element" : "Content");
// write the properties
sb.Append("\t\t// properties\n");
WriteContentTypeProperties(sb, type);
// close the class declaration
sb.Append("\t}\n");
}