public static ClassBuilder AddEquality(
this ClassBuilder builder,
string typeName,
IReadOnlyList <PropertyDescriptor> properties)
{
const string obj = nameof(obj);
const string other = nameof(other);
builder.AddImplements(TypeNames.IEquatable.WithGeneric(typeName));
builder
.AddMethod(nameof(IEquatable <object> .Equals))
.SetPublic()
.SetOverride()
.SetReturnType(TypeNames.Boolean)
.AddParameter(obj, x => x.SetType(TypeNames.Object.MakeNullable()))
.AddCode(CodeBlockBuilder
.New()
.AddCode(IfBuilder
.New()
.SetCondition(MethodCallBuilder
.Inline()
.SetMethodName(nameof(ReferenceEquals))
.AddArgument("null")
.AddArgument(obj))
.AddCode("return false;"))
.AddEmptyLine()
.AddCode(IfBuilder
.New()
.SetCondition(MethodCallBuilder
.Inline()
.SetMethodName(nameof(ReferenceEquals))
.AddArgument("this")
.AddArgument(obj))
.AddCode("return true;"))
.AddEmptyLine()
.AddCode(IfBuilder
.New()
.SetCondition($"{obj}.GetType() != GetType()")
.AddCode("return false;"))
.AddEmptyLine()
.AddLine($"return Equals(({typeName}){obj});"));
ConditionBuilder equalCondition =
ConditionBuilder
.New()
.SetReturn()
.SetDetermineStatement();
if (properties.Count == 0)
{
equalCondition.And("true");
}
else
{
foreach (PropertyDescriptor property in properties)
{
equalCondition.And(ConditionBuilder
.New()
.Set(BuildPropertyComparison(property.Type, property.Name)));
}
}
builder
.AddMethod(nameof(IEquatable <object> .Equals))
.SetPublic()
.SetReturnType(TypeNames.Boolean)
.AddParameter(other, x => x.SetType(typeName.MakeNullable()))
.AddCode(CodeBlockBuilder
.New()
.AddCode(IfBuilder
.New()
.SetCondition(MethodCallBuilder
.Inline()
.SetMethodName(nameof(ReferenceEquals))
.AddArgument("null")
.AddArgument(other))
.AddCode("return false;"))
.AddEmptyLine()
.AddCode(IfBuilder
.New()
.SetCondition(MethodCallBuilder
.Inline()
.SetMethodName(nameof(ReferenceEquals))
.AddArgument("this")
.AddArgument(other))
.AddCode("return true;"))
.AddEmptyLine()
.AddCode(IfBuilder
.New()
.SetCondition($"{other}.GetType() != GetType()")
.AddCode("return false;"))
.AddEmptyLine()
.AddCode(equalCondition));
builder
.AddMethod(nameof(GetHashCode))
.SetPublic()
.SetOverride()
.SetReturnType(TypeNames.Int32)
.AddCode(HashCodeBuilder
.New()
.AddProperties(properties));
return(builder);
}
private void AddDataTypeDeserializerMethod(
ClassBuilder classBuilder,
MethodBuilder methodBuilder,
NamedTypeDescriptor namedTypeDescriptor,
HashSet <string> processed)
{
if (namedTypeDescriptor.IsInterface)
{
methodBuilder.AddCode(
"var typename = obj.Value.GetProperty(\"__typename\").GetString();");
// If the type is an interface
foreach (NamedTypeDescriptor concreteType in namedTypeDescriptor.ImplementedBy)
{
methodBuilder.AddEmptyLine();
var ifStatement = IfBuilder.New()
.SetCondition(
$"typename?.Equals(\"{concreteType.GraphQLTypeName}\", " +
$"{TypeNames.OrdinalStringComparisson}) ?? false");
var dataTypeName = $"global::{concreteType.Namespace}.State."
+ DataTypeNameFromTypeName(concreteType.GraphQLTypeName);
var returnStatement = MethodCallBuilder.New()
.SetPrefix("return new ")
.SetMethodName(dataTypeName);
returnStatement.AddArgument("typename");
foreach (PropertyDescriptor property in concreteType.Properties)
{
returnStatement.AddArgument(
CodeBlockBuilder.New()
.AddCode($"{property.Name.WithLowerFirstChar()}: ")
.AddCode(BuildUpdateMethodCall(property)));
}
ifStatement.AddCode(returnStatement);
methodBuilder.AddCode(ifStatement);
}
methodBuilder.AddEmptyLine();
methodBuilder.AddCode($"throw new {TypeNames.NotSupportedException}();");
}
else
{
var returnStatement = MethodCallBuilder.New()
.SetPrefix("return new ")
.SetMethodName(namedTypeDescriptor.Name);
foreach (PropertyDescriptor property in namedTypeDescriptor.Properties)
{
returnStatement.AddArgument(BuildUpdateMethodCall(property));
}
methodBuilder.AddCode(returnStatement);
}
AddRequiredDeserializeMethods(
namedTypeDescriptor,
classBuilder,
processed);
}
protected override void Generate(
CodeWriter writer,
ITypeDescriptor typeDescriptor,
out string fileName)
{
ComplexTypeDescriptor descriptor =
typeDescriptor as ComplexTypeDescriptor ??
throw new InvalidOperationException(
"A result data factory can only be generated for complex types");
fileName = CreateResultFactoryName(descriptor.RuntimeType.Name);
ClassBuilder classBuilder =
ClassBuilder
.New()
.SetName(fileName)
.AddImplements(
TypeNames.IOperationResultDataFactory
.WithGeneric(descriptor.RuntimeType.Name));
ConstructorBuilder constructorBuilder = classBuilder
.AddConstructor()
.SetTypeName(descriptor.Name);
AddConstructorAssignedField(
TypeNames.IEntityStore,
_entityStore,
classBuilder,
constructorBuilder);
MethodCallBuilder returnStatement = MethodCallBuilder
.New()
.SetReturn()
.SetNew()
.SetMethodName(descriptor.RuntimeType.Name);
foreach (PropertyDescriptor property in descriptor.Properties)
{
returnStatement
.AddArgument(BuildMapMethodCall(_info, property));
}
IfBuilder ifHasCorrectType = IfBuilder
.New()
.SetCondition(
$"{_dataInfo} is {CreateResultInfoName(descriptor.RuntimeType.Name)} {_info}")
.AddCode(returnStatement);
classBuilder
.AddMethod("Create")
.SetAccessModifier(AccessModifier.Public)
.SetReturnType(descriptor.RuntimeType.Name)
.AddParameter(_dataInfo, b => b.SetType(TypeNames.IOperationResultDataInfo))
.AddCode(ifHasCorrectType)
.AddEmptyLine()
.AddCode(
ExceptionBuilder
.New(TypeNames.ArgumentException)
.AddArgument(
$"\"{CreateResultInfoName(descriptor.RuntimeType.Name)} expected.\""));
var processed = new HashSet <string>();
AddRequiredMapMethods(
_info,
descriptor,
classBuilder,
constructorBuilder,
processed,
true);
CodeFileBuilder
.New()
.SetNamespace(descriptor.RuntimeType.NamespaceWithoutGlobal)
.AddType(classBuilder)
.Build(writer);
}
private void AddBuildDataMethod(
NamedTypeDescriptor resultNamedType,
ClassBuilder classBuilder)
{
var objParameter = "obj";
var buildDataMethod = MethodBuilder.New()
.SetAccessModifier(AccessModifier.Private)
.SetName("BuildData")
.SetReturnType(
$"({resultNamedType.Name}, " +
$"{ResultInfoNameFromTypeName(resultNamedType.ImplementedBy[0].Name)})")
.AddParameter(
ParameterBuilder.New()
.SetType(TypeNames.JsonElement)
.SetName(objParameter));
var sessionName = "session";
buildDataMethod.AddCode(
CodeLineBuilder.New()
.SetLine(
CodeBlockBuilder.New()
.AddCode(
$"using {TypeNames.IEntityUpdateSession} {sessionName} = ")
.AddCode(_entityStoreFieldName + ".BeginUpdate();")));
var entityIdsName = "entityIds";
buildDataMethod.AddCode(
CodeLineBuilder.New()
.SetLine(
$"var {entityIdsName} = new {TypeNames.HashSet}<{TypeNames.EntityId}>();"));
buildDataMethod.AddEmptyLine();
foreach (PropertyDescriptor property in
resultNamedType.Properties.Where(prop => prop.Type.IsEntityType()))
{
buildDataMethod.AddCode(
AssignmentBuilder.New()
.SetLefthandSide(CodeBlockBuilder.New()
.AddCode(property.Type.ToEntityIdBuilder())
.AddCode($"{property.Name.WithLowerFirstChar()}Id"))
.SetRighthandSide(BuildUpdateMethodCall(property, "")));
}
var resultInfoConstructor = MethodCallBuilder.New()
.SetMethodName(
$"new {ResultInfoNameFromTypeName(resultNamedType.ImplementedBy[0].Name)}")
.SetDetermineStatement(false);
foreach (PropertyDescriptor property in resultNamedType.Properties)
{
if (property.Type.IsEntityType())
{
resultInfoConstructor.AddArgument($"{property.Name.WithLowerFirstChar()}Id");
}
else
{
resultInfoConstructor.AddArgument(BuildUpdateMethodCall(property, ""));
}
}
resultInfoConstructor.AddArgument(entityIdsName);
resultInfoConstructor.AddArgument(
$"{sessionName}.{TypeNames.IEntityUpdateSession_Version}");
buildDataMethod.AddEmptyLine();
var resultInfoName = "resultInfo";
buildDataMethod.AddCode(
AssignmentBuilder.New()
.SetLefthandSide($"var {resultInfoName}")
.SetRighthandSide(resultInfoConstructor));
buildDataMethod.AddEmptyLine();
buildDataMethod.AddCode(
$"return ({_resultDataFactoryFieldName}" +
$".Create({resultInfoName}), {resultInfoName});");
classBuilder.AddMethod(buildDataMethod);
}
private void AddUpdateEntityMethod(
ClassBuilder classBuilder,
MethodBuilder methodBuilder,
INamedTypeDescriptor namedTypeDescriptor,
HashSet <string> processed)
{
var entityIdVarName = "entityId";
methodBuilder.AddCode(
AssignmentBuilder.New()
.SetLefthandSide(
CodeBlockBuilder.New()
.AddCode(TypeNames.EntityId)
.AddCode($" {entityIdVarName}"))
.SetRighthandSide($"{_extractIdFieldName}({_objParamName}.Value)"));
methodBuilder.AddCode($"{_entityIdsParam}.Add({entityIdVarName});");
methodBuilder.AddEmptyLine();
var entityVarName = "entity";
if (namedTypeDescriptor is InterfaceTypeDescriptor interfaceTypeDescriptor)
{
// If the type is an interface
foreach (ObjectTypeDescriptor concreteType in interfaceTypeDescriptor.ImplementedBy)
{
methodBuilder.AddEmptyLine();
var ifStatement = IfBuilder.New()
.SetCondition(
$"entityId.Name.Equals(\"{concreteType.Name}\", " +
$"{TypeNames.OrdinalStringComparison})");
var entityTypeName = CreateEntityTypeName(concreteType.Name);
WriteEntityLoader(
ifStatement,
entityTypeName,
entityVarName,
entityIdVarName);
WritePropertyAssignments(
ifStatement,
concreteType.Properties,
entityVarName);
ifStatement.AddEmptyLine();
ifStatement.AddCode($"return {entityIdVarName};");
methodBuilder.AddCode(ifStatement);
}
methodBuilder.AddEmptyLine();
methodBuilder.AddCode($"throw new {TypeNames.NotSupportedException}();");
}
else if (namedTypeDescriptor is ComplexTypeDescriptor complexTypeDescriptor)
{
WriteEntityLoader(
methodBuilder,
CreateEntityTypeName(namedTypeDescriptor.Name),
entityVarName,
entityIdVarName);
WritePropertyAssignments(
methodBuilder,
complexTypeDescriptor.Properties,
entityVarName);
methodBuilder.AddEmptyLine();
methodBuilder.AddCode($"return {entityIdVarName};");
}
AddRequiredDeserializeMethods(
namedTypeDescriptor,
classBuilder,
processed);
}
protected override void Generate(
CodeWriter writer,
ITypeDescriptor typeDescriptor,
out string fileName)
{
// Setup class
ComplexTypeDescriptor descriptor =
typeDescriptor as ComplexTypeDescriptor ??
throw new InvalidOperationException(
"A result entity mapper can only be generated for complex types");
fileName = descriptor.ExtractMapperName();
ClassBuilder classBuilder = ClassBuilder
.New()
.AddImplements(
TypeNames.IEntityMapper
.WithGeneric(descriptor.ExtractTypeName(), descriptor.RuntimeType.Name))
.SetName(fileName);
ConstructorBuilder constructorBuilder = ConstructorBuilder
.New()
.SetTypeName(descriptor.Name);
if (descriptor.ContainsEntity())
{
AddConstructorAssignedField(
TypeNames.IEntityStore,
StoreFieldName,
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.EntityType
? CreateEntityTypeName(descriptor.Name)
: descriptor.Name)
.SetName(_entity));
MethodCallBuilder constructorCall =
MethodCallBuilder
.New()
.SetReturn()
.SetNew()
.SetMethodName(descriptor.RuntimeType.Name);
if (typeDescriptor is ComplexTypeDescriptor complexTypeDescriptor)
{
foreach (PropertyDescriptor property in complexTypeDescriptor.Properties)
{
constructorCall.AddArgument(BuildMapMethodCall(_entity, property));
}
}
mapMethod.AddCode(constructorCall);
if (constructorBuilder.HasParameters())
{
classBuilder.AddConstructor(constructorBuilder);
}
classBuilder.AddMethod(mapMethod);
AddRequiredMapMethods(
_entity,
descriptor,
classBuilder,
constructorBuilder,
new HashSet <string>());
CodeFileBuilder
.New()
.SetNamespace(descriptor.RuntimeType.NamespaceWithoutGlobal)
.AddType(classBuilder)
.Build(writer);
}
protected override Task WriteAsync(
CodeWriter writer,
EnumValueSerializerDescriptor descriptor)
{
if (writer is null)
{
throw new ArgumentNullException(nameof(writer));
}
if (descriptor is null)
{
throw new ArgumentNullException(nameof(descriptor));
}
ClassBuilder classBuilder = ClassBuilder.New()
.SetAccessModifier(AccessModifier.Public)
.SetSealed()
.SetName(descriptor.Name)
.AddImplements(Types.IValueSerializer)
.AddProperty(PropertyBuilder.New()
.SetAccessModifier(AccessModifier.Public)
.SetType("string")
.SetName("Name")
.SetGetter(CodeLineBuilder.New()
.SetLine($"return \"{descriptor.EnumGraphQLTypeName}\";")))
.AddProperty(PropertyBuilder.New()
.SetAccessModifier(AccessModifier.Public)
.SetType(Types.ValueKind)
.SetName("Kind")
.SetGetter(CodeLineBuilder.New()
.SetLine($"return {Types.ValueKind}.Enum;")))
.AddProperty(PropertyBuilder.New()
.SetAccessModifier(AccessModifier.Public)
.SetType(Types.Type)
.SetName("ClrType")
.SetGetter(CodeLineBuilder.New()
.SetLine($"return typeof({descriptor.EnumTypeName});")))
.AddProperty(PropertyBuilder.New()
.SetAccessModifier(AccessModifier.Public)
.SetType(Types.Type)
.SetName("SerializationType")
.SetGetter(CodeLineBuilder.New()
.SetLine($"return typeof(string);")))
.AddMethod(MethodBuilder.New()
.SetAccessModifier(AccessModifier.Public)
.SetReturnType("object?", NullableRefTypes)
.SetReturnType("object", !NullableRefTypes)
.SetName("Serialize")
.AddParameter(ParameterBuilder.New()
.SetType("object?", NullableRefTypes)
.SetType("object", !NullableRefTypes)
.SetName("value"))
.AddCode(CreateSerializerMethodBody(descriptor, CodeWriter.Indent)))
.AddMethod(MethodBuilder.New()
.SetAccessModifier(AccessModifier.Public)
.SetReturnType("object?", NullableRefTypes)
.SetReturnType("object", !NullableRefTypes)
.SetName("Deserialize")
.AddParameter(ParameterBuilder.New()
.SetType("object?", NullableRefTypes)
.SetType("object", !NullableRefTypes)
.SetName("serialized"))
.AddCode(CreateDeserializerMethodBody(descriptor, CodeWriter.Indent)));
return(CodeFileBuilder.New()
.SetNamespace(descriptor.Namespace)
.AddType(classBuilder)
.BuildAsync(writer));
}
