Beispiel #1
0
        /// <summary>
        /// Builds a code representation of an <see cref="EntityType"/>.
        /// </summary>
        /// <param name="type">The <see cref="EntityType"/> from which to generate code.</param>
        /// <returns>A <see cref="CodeTypeDeclaration"/> which represents the <see cref="EntityType"/>.</returns>
        protected virtual CodeTypeDeclaration BuildType(EntityType type)
        {
            var codeClass          = new CodeTypeDeclaration(type.Name);
            var defaultConstructor = codeClass.AddConstructor();

            ApplyTypeAccessModifier(codeClass, type.Annotations.OfType <TypeAccessModifierAnnotation>().SingleOrDefault());

            if (type.Annotations.Any(a => a is SerializableAnnotation))
            {
                codeClass.AddCustomAttribute(typeof(SerializableAttribute));
            }

            if (type.Annotations.Any(a => a is CodeAttributeAnnotation))
            {
                this.AddCodeAttributeAnnotationAsCustomAttribute(codeClass, type.Annotations.OfType <CodeAttributeAnnotation>());
            }

            var genericTypeAnnotation = type.Annotations.OfType <GenericTypeAnnotation>().FirstOrDefault();

            if (genericTypeAnnotation != null)
            {
                foreach (var typeParameter in genericTypeAnnotation.TypeParameters)
                {
                    codeClass.TypeParameters.Add(new CodeTypeParameter(typeParameter));
                }
            }

            if (type.BaseType != null)
            {
                var baseType = new CodeTypeReference(type.BaseType.FullName);

                var baseGenericTypeAnnotation  = type.BaseType.Annotations.OfType <GenericTypeAnnotation>().SingleOrDefault();
                var genericArgumentsAnnotation = type.Annotations.OfType <GenericArgumentsAnnotation>().SingleOrDefault();
                if (genericArgumentsAnnotation != null)
                {
                    foreach (var typeParameter in baseGenericTypeAnnotation.TypeParameters)
                    {
                        var typeRef  = Code.TypeRef(typeParameter);
                        var argument = genericArgumentsAnnotation.GenericArguments.SingleOrDefault(g => g.TypeParameterName == typeParameter);
                        if (argument != null)
                        {
                            typeRef = codeTypeReferenceResolver.Resolve(argument.DataType);
                        }
                        else
                        {
                            if (genericTypeAnnotation == null || !genericTypeAnnotation.TypeParameters.Contains(typeParameter))
                            {
                                throw new TaupoArgumentException(
                                          string.Format(
                                              CultureInfo.InvariantCulture,
                                              "Entity type {0} cannot derive from entity type {1} because it does not specify a {2} or {3} to fill in {1}'s generic parameter {4}.",
                                              type.Name,
                                              type.BaseType.Name,
                                              typeof(GenericTypeAnnotation).Name,
                                              typeof(GenericArgumentsAnnotation).Name,
                                              typeParameter));
                            }
                        }

                        baseType.TypeArguments.Add(typeRef);
                    }
                }
                else
                {
                    if (baseGenericTypeAnnotation != null)
                    {
                        throw new TaupoArgumentException(
                                  string.Format(
                                      CultureInfo.InvariantCulture,
                                      "Entity type {0} cannot derive from entity type {1} because it does not specify a {2} or {3} to fill in {1}'s generic parameter {4}.",
                                      type.Name,
                                      type.BaseType.Name,
                                      typeof(GenericTypeAnnotation).Name,
                                      typeof(GenericArgumentsAnnotation).Name,
                                      baseGenericTypeAnnotation.TypeParameters.First()));
                    }
                }

                codeClass.InheritsFrom(baseType);
            }

            if (type.IsAbstract)
            {
                codeClass.SetAbstract();
            }

            this.AddProperties(codeClass, type);
            this.AddNavigationProperties(codeClass, type, defaultConstructor);

            return(codeClass);
        }