protected override void Generate(ITypeDescriptor typeDescriptor,
CSharpSyntaxGeneratorSettings settings,
CodeWriter writer,
out string fileName,
out string?path,
out string ns)
{
// Setup class
ComplexTypeDescriptor descriptor =
typeDescriptor as ComplexTypeDescriptor ??
throw new InvalidOperationException(
"A result entity mapper can only be generated for complex types");
fileName = descriptor.ExtractMapperName();
path = State;
ns = CreateStateNamespace(descriptor.RuntimeType.NamespaceWithoutGlobal);
ClassBuilder classBuilder = ClassBuilder
.New()
.AddImplements(
TypeNames.IEntityMapper
.WithGeneric(
descriptor.ExtractType().ToString(),
descriptor.RuntimeType.Name))
.SetName(fileName);
ConstructorBuilder constructorBuilder = ConstructorBuilder
.New()
.SetTypeName(descriptor.Name);
AddConstructorAssignedField(
TypeNames.IEntityStore,
_entityStore,
entityStore,
classBuilder,
constructorBuilder);
// Define map method
MethodBuilder mapMethod = MethodBuilder
.New()
.SetName(_map)
.SetAccessModifier(AccessModifier.Public)
.SetReturnType(descriptor.RuntimeType.Name)
.AddParameter(
ParameterBuilder
.New()
.SetType(
descriptor.Kind == TypeKind.Entity
? CreateEntityType(
descriptor.Name,
descriptor.RuntimeType.NamespaceWithoutGlobal)
.ToString()
: descriptor.Name)
.SetName(_entity))
.AddParameter(
_snapshot,
b => b.SetDefault("null")
.SetType(TypeNames.IEntityStoreSnapshot.MakeNullable()));
mapMethod
.AddCode(IfBuilder
.New()
.SetCondition($"{_snapshot} is null")
.AddCode(AssignmentBuilder
.New()
.SetLefthandSide(_snapshot)
.SetRighthandSide($"{_entityStore}.CurrentSnapshot")))
.AddEmptyLine();
MethodCallBuilder constructorCall =
MethodCallBuilder
.New()
.SetReturn()
.SetNew()
.SetMethodName(descriptor.RuntimeType.Name);
if (typeDescriptor is ComplexTypeDescriptor complexTypeDescriptor)
{
foreach (PropertyDescriptor property in complexTypeDescriptor.Properties)
{
constructorCall.AddArgument(BuildMapMethodCall(settings, _entity, property));
}
}
mapMethod.AddCode(constructorCall);
if (constructorBuilder.HasParameters())
{
classBuilder.AddConstructor(constructorBuilder);
}
classBuilder.AddMethod(mapMethod);
AddRequiredMapMethods(
settings,
_entity,
descriptor,
classBuilder,
constructorBuilder,
new HashSet <string>());
classBuilder.Build(writer);
}
