static NestedText GenFunc(Signature func, string funcName)
{
var argsWithoutFlags = func.Args
.Filter(x => x.Kind.Match(_: () => true, flags: _ => false))
.ToArr();
var funcArgs = argsWithoutFlags
.Map(x => (
name: x.Name,
lowerName: Helpers.LowerFirst(x.Name),
type: TgTypeConverter.ConvertArgType(x),
isRef: TgTypeConverter.IsRefArgType(x)
)).ToArray();
// usually it is a higher-order function, i am too lazy to modify the scheme just for this case
var isWrapper = func.Args.Exists(x => x.Type == TgType.OfTypeRef("X") || x.Type == TgType.OfTypeRef("!X"));
var resType = isWrapper ? "TFuncRes" : TgTypeConverter.ConvertType(func.ResultType);
var classAccess = isWrapper ? "" : "public ";
var classTemplates = isWrapper ? "<TFunc, TFuncRes>" : "";
var classAnnotations = isWrapper
? $": ITgFunc<{resType}> where TFunc : class, ITgFunc<{resType}>"
: $": ITgFunc<{resType}>, IEquatable<{funcName}>, IComparable<{funcName}>, IComparable";
var resDes = isWrapper
? "Query.DeserializeResult(br);" // it is 'Query' all the time, i am too lazy
: Concat("Read(br, ", SerializerGen.GenTypeDeserializer(func.ResultType), ");");
var resultDeserializer = Scope(
Line($"{resType} ITgFunc<{resType}>.DeserializeResult(BinaryReader br) =>"),
Indent(1, Line(resDes))
);
return(Scope(
Line($"{classAccess}sealed class {funcName}{classTemplates} {classAnnotations}"),
Line("{"),
IndentedScope(1,
funcArgs.Map(arg => Line($"public {arg.type} {arg.name} {{ get; }}")).Scope(),
Scope(
Line(""),
Scope(
Line($"public {funcName}("),
IndentedScope(1, $",{Environment.NewLine}",
funcArgs.Map(arg => Line($"{arg.type} {arg.lowerName}"))
),
Line(") {"),
IndentedScope(1,
funcArgs.Map(arg => Line(
$"{arg.name} = {arg.lowerName}" +
$"{(arg.isRef ? $" ?? throw new ArgumentNullException(nameof({arg.lowerName}))" : "")};"
))
),
Line("}")
),
Line(""),
Line(""),
isWrapper ? Scope(new NestedText[0]) : Scope(
WithGen.GenWith(argsWithoutFlags, funcName),
Line(""),
RelationsGen.GenRelations(funcName, argsWithoutFlags),
Line("")
),
SerializerGen.GenSerializer(func.Args, typeNumber: func.TypeNumber, "ITgSerializable.Serialize"),
Line(""),
resultDeserializer
)
),
Line("}")
));
}
public static string ConvertType(TgType type, bool cmpWrapper) => type.Match(
