public static CodeGenData Calculate(ParsedData parsedData, ExternStructInfo[] externStructs)
{
var typesMemInfo = new Dictionary <string, TypeMemoryInfo>(Primitives);
foreach (var structInfo in externStructs)
{
DefaultValueInfo dvi;
switch (structInfo.Kind)
{
case ExternStructInfo.StructKind.WithoutValues:
dvi = DefaultValueInfo.WriteZeroes();
break;
case ExternStructInfo.StructKind.WithEnumeratedValues:
dvi = DefaultValueInfo.AssignTypeMember(structInfo.Values[0]);
break;
case ExternStructInfo.StructKind.PlainBuffersStruct:
dvi = DefaultValueInfo.CallWriteDefaultMethod();
break;
default:
throw new ArgumentOutOfRangeException();
}
typesMemInfo.Add(structInfo.Name, new TypeMemoryInfo(structInfo.Size, structInfo.Alignment, dvi));
}
var codeGenTypes = new CodeGenType[parsedData.Types.Length];
for (var i = 0; i < parsedData.Types.Length; i++)
{
CodeGenType codeGenType;
switch (parsedData.Types[i])
{
case ParsedEnum pdEnum:
codeGenType = HandleEnum(pdEnum, typesMemInfo);
break;
case ParsedArray pdArray:
codeGenType = HandleArray(pdArray, typesMemInfo);
break;
case ParsedStruct pdStruct:
codeGenType = HandleStruct(pdStruct, typesMemInfo);
break;
default:
throw new Exception($"Unknown type variant {parsedData.Types[i].GetType().Name}");
}
codeGenTypes[i] = codeGenType;
}
return(new CodeGenData(parsedData.Namespace, codeGenTypes));
}
private static CodeGenEnum HandleEnum(ParsedEnum pdEnum, IDictionary <string, TypeMemoryInfo> typesMemInfo)
{
if (!typesMemInfo.TryGetValue(pdEnum.UnderlyingType, out var memInfo))
{
throw new Exception($"Invalid base type `{pdEnum.UnderlyingType}` of enum `{pdEnum.Name}`");
}
var items = new CodeGenEnumItem[pdEnum.Items.Length];
for (var i = 0; i < items.Length; i++)
{
items[i] = new CodeGenEnumItem(pdEnum.Items[i].Name, pdEnum.Items[i].Value);
}
var defaultValue = DefaultValueInfo.AssignTypeMember(pdEnum.Items[0].Name);
typesMemInfo.Add(pdEnum.Name, new TypeMemoryInfo(memInfo.Size, memInfo.Size, defaultValue));
return(new CodeGenEnum(pdEnum.Name, memInfo.Size, pdEnum.UnderlyingType, pdEnum.IsFlags, items));
}