private static EnumMemberDeclarationSyntax BuildEnumMember(CppEnumItem cppEnumItem, int prefixLength)
{
return(EnumMemberDeclaration(PrettyItemName(cppEnumItem.Name))
.WithEqualsValue(EqualsValueClause(LiteralExpression(SyntaxKind.NumericLiteralExpression, Literal((int)cppEnumItem.Value))))
.WithAdditionalAnnotations(new SyntaxAnnotation(Annotations.NativeName, cppEnumItem.Name)));
string PrettyItemName(string itemName)
{
var parts = itemName[prefixLength..].Split("_", StringSplitOptions.RemoveEmptyEntries);
var name = string.Concat(parts.Select(p => p[..1].ToUpperInvariant() + p[1..]));
public static CSharpElement ConvertEnumItem(CSharpConverter converter, CppEnumItem cppEnumItem, CSharpElement context)
{
// If the context is not an enum, we don't support this scenario.
if (!(context is CSharpEnum csEnum))
{
return(null);
}
var enumItemName = converter.GetCSharpName(cppEnumItem, context);
var csEnumItem = new CSharpEnumItem(enumItemName)
{
CppElement = cppEnumItem
};
csEnum.Members.Add(csEnumItem);
csEnumItem.Comment = converter.GetCSharpComment(cppEnumItem, context);
// Process any enum item value expression (e.g ENUM_ITEM = 1 << 2)
if (cppEnumItem.ValueExpression != null)
{
var integerValue = converter.ConvertExpression(cppEnumItem.ValueExpression);
csEnumItem.Value = $"unchecked(({csEnum.IntegerBaseType}){(string.IsNullOrEmpty(integerValue) ? cppEnumItem.Value + "" : integerValue)})";
// Tag the enum has flags
if (!csEnum.IsFlags && csEnumItem.Value.Contains("<<"))
{
csEnum.IsFlags = true;
}
if (csEnum.IsFlags)
{
csEnumItem.Value = csEnumItem.Value.Replace("<<", $" << ({csEnum.IntegerBaseType})");
}
}
if (converter.Options.GenerateEnumItemAsFields && context.Parent is CSharpClass csClass)
{
var csEnumItemAsField = new CSharpField(enumItemName)
{
Modifiers = CSharpModifiers.Const,
FieldType = csEnum,
Comment = csEnumItem.Comment,
InitValue = $"{csEnum.Name}.{csEnumItem.Name}"
};
converter.ApplyDefaultVisibility(csEnumItemAsField, csClass);
csClass.Members.Add(csEnumItemAsField);
}
return(csEnumItem);
}
/// <summary> /// Renames the specified C++ enum item. /// </summary> /// <param name="cppEnumItem">The C++ enum item.</param> /// <param name="rootEnumName">Name of the root C++ enum.</param> /// <returns>The C# name of this enum item</returns> public string Rename(CppEnumItem cppEnumItem, string rootEnumName) => UnKeyword(RenameCore(cppEnumItem, rootEnumName));
/// <summary>
/// Renames the specified C++ enum item.
/// </summary>
/// <param name="cppEnumItem">The C++ enum item.</param>
/// <param name="rootEnumName">Name of the root C++ enum.</param>
/// <returns>The C# name of this enum item</returns>
public string Rename(CppEnumItem cppEnumItem, string rootEnumName)
{
return(RecordRename(cppEnumItem, UnKeyword(RenameCore(cppEnumItem, rootEnumName))));
}
public static void ProcessFile(string inputFile, string outputPath, string outputFile, string defaultNamespace, string defaultClass)
{
inputFile = Path.GetFullPath(inputFile);
Console.WriteLine($"Processing file '{Path.GetFileName(inputFile)}'...");
//Writing
var converterOptions = new CSharpConverterOptions()
{
DefaultNamespace = defaultNamespace,
DefaultClassLib = defaultClass,
DefaultOutputFilePath = outputFile,
DefaultDllImportNameAndArguments = "Library",
DispatchOutputPerInclude = false,
GenerateEnumItemAsFields = false,
TypedefCodeGenKind = CppTypedefCodeGenKind.NoWrap,
MappingRules =
{
//Remove prefixes from elements' names.
e => e.MapAll <CppElement>().CppAction((converter, element) => {
if (element is ICppMember member)
{
string prefix = member switch {
CppType _ => "IPL",
CppEnumItem _ => "IPL_",
_ => null
};
if (prefix != null)
{
member.Name = StringUtils.Capitalize(StringUtils.RemovePrefix(member.Name, prefix));
}
}
}).CSharpAction((converter, element) => {
if (element is CSharpMethod method)
{
const string Prefix = "ipl";
string oldName = method.Name;
string newName = StringUtils.Capitalize(StringUtils.RemovePrefix(oldName, Prefix));
//Add an EntryPoint parameter to the DllImportAttribute, so that this rename doesn't break anything.
if (method.Attributes.FirstOrDefault(attrib => attrib is CSharpDllImportAttribute) is CSharpDllImportAttribute dllImportAttribute)
{
dllImportAttribute.EntryPoint = $@"""{oldName}""";
}
method.Name = newName;
}
}),
//Replace the bool enum with an actual bool.
e => e.Map <CppEnum>("Bool").Discard(),
e => e.MapAll <CppDeclaration>().CSharpAction((converter, element) => {
CSharpType type;
Action <CSharpType> setType;
if (element is CSharpField field)
{
type = field.FieldType;
setType = value => field.FieldType = value;
}
else if (element is CSharpParameter parameter)
{
type = parameter.ParameterType;
setType = value => parameter.ParameterType = value;
}
else
{
return;
}
if (type is CSharpFreeType freeType && freeType.Text == "unsupported_type /* enum Bool {...} */")
{
var boolean = converter.GetCSharpType(CppPrimitiveType.Bool, element);
setType(boolean);
if (boolean is CSharpTypeWithAttributes typeWithAttributes)
{
foreach (CSharpMarshalAttribute attribute in typeWithAttributes.Attributes.Where(a => a is CSharpMarshalAttribute))
{
attribute.UnmanagedType = CSharpUnmanagedKind.U4;
}
}
}
}),
//Rename enum elements from SCREAMING_SNAKECASE to LameupperCamelcase. There are manual fixes below, for cases where words aren't separated.
e => e.MapAll <CppEnumItem>().CppAction((converter, element) => {
var enumItem = (CppEnumItem)element;
string name = enumItem.Name;
string[] splits = name.Split('_');
if (splits.Length > 1)
{
string prefix = splits[0];
//Remove (potentially partial) prefixes of enum's name on its items' names.
if (name.Length > prefix.Length + 1 && name.StartsWith(prefix, StringComparison.InvariantCultureIgnoreCase))
{
name = name.Substring(prefix.Length + 1);
splits = name.Split('_');
}
//Capitalize each part
for (int i = 0; i < splits.Length; i++)
{
string split = splits[i];
char[] chars = split.ToCharArray();
for (int j = 0; j < chars.Length; j++)
{
chars[j] = j == 0 ? char.ToUpper(chars[j]) : char.ToLower(chars[j]);
}
splits[i] = new string(chars);
}
name = string.Join(string.Empty, splits);
}
enumItem.Name = name;
}),
//Fix weird 'ref void' parameters.
e => e.MapAll <CppParameter>().CSharpAction((converter, element) => {
var parameter = (CSharpParameter)element;
var parameterType = parameter.ParameterType;
if (parameterType is CSharpRefType refType && refType.ElementType is CSharpPrimitiveType primitiveType && primitiveType.Kind == CSharpPrimitiveKind.Void)
{
parameter.ParameterType = CSharpPrimitiveType.IntPtr;
}
}),
//Turn some 'ref' parameters to 'out' or 'in' based on \param documentation.
e => e.MapAll <CppParameter>().CSharpAction((converter, element) => {
var parameter = (CSharpParameter)element;
if (!(parameter.ParameterType is CSharpRefType refParameterType))
{
return;
}
if (!(element.Parent is CSharpMethod method) || !(method.CppElement is CppFunction function))
{
return;
}
if (!(function.Comment?.Children?.FirstOrDefault(c => c is CppCommentParamCommand pc && pc.ParamName == parameter.Name) is CppCommentParamCommand parameterComment))
{
return;
}
if (!(parameterComment?.Children?.FirstOrDefault() is CppCommentParagraph paragraph))
{
return;
}
string paragraphText = paragraph.ToString().Trim();
if (paragraphText.StartsWith("[out]"))
{
refParameterType.Kind = CSharpRefKind.Out;
}
else if (paragraphText.StartsWith("[in]")) //Never actually used
{
refParameterType.Kind = CSharpRefKind.In;
}
}),
//Turn a 2D fixed array into an 1D one.
e => e.Map <CppField>("Matrix4x4::elements").Type("float", 16),
//Manually fix casing on some enum properties. This could theoretically be made automatic through crazy dictionary-based algorithms, but that's overkill.
e => e.Map <CppEnumItem>("Error::Outofmemory").Name("OutOfMemory"),
e => e.Map <CppEnumItem>("SceneType::Radeonrays").Name("RadeonRays"),
e => e.Map <CppEnumItem>("ConvolutionType::Trueaudionext").Name("TrueAudioNext"),
e => e.Map <CppEnumItem>("ChannelLayout::Fivepointone").Name("FivePointOne"),
e => e.Map <CppEnumItem>("ChannelLayout::Sevenpointone").Name("SevenPointOne"),
e => e.Map <CppEnumItem>("AmbisonicsOrdering::Fursemalham").Name("FurseMalham"),
e => e.Map <CppEnumItem>("AmbisonicsNormalization::Fursemalham").Name("FurseMalham"),
e => e.Map <CppEnumItem>("AmbisonicsNormalization::Sn3d").Name("SN3D"),
e => e.Map <CppEnumItem>("AmbisonicsNormalization::N3d").Name("N3D"),
e => e.Map <CppEnumItem>("DistanceAttenuationModelType::Inversedistance").Name("InversedDistance"),
e => e.Map <CppEnumItem>("DirectOcclusionMode::Notransmission").Name("NoTransmission"),
e => e.Map <CppEnumItem>("DirectOcclusionMode::Transmissionbyvolume").Name("TransmissionByVolume"),
e => e.Map <CppEnumItem>("DirectOcclusionMode::Transmissionbyfrequency").Name("TransmissionByFrequency"),
e => e.Map <CppEnumItem>("BakedDataType::Staticsource").Name("StaticSource"),
e => e.Map <CppEnumItem>("BakedDataType::Staticlistener").Name("StaticListener"),
e => e.Map <CppEnumItem>("BakedDataType::Uniformfloor").Name("UniformFloor"),
}
};
converterOptions.IncludeFolders.Add(Path.GetDirectoryName(inputFile));
var compilation = CSharpConverter.Convert(new List <string> {
inputFile
}, converterOptions);
if (compilation.HasErrors)
{
foreach (var message in compilation.Diagnostics.Messages)
{
if (message.Type == CppLogMessageType.Error)
{
Console.WriteLine(message);
}
}
Console.ReadKey();
return;
}
using var fileSystem = new PhysicalFileSystem();
using var subFileSystem = new SubFileSystem(fileSystem, fileSystem.ConvertPathFromInternal(outputPath));
var codeWriterOptions = new CodeWriterOptions(subFileSystem);
var codeWriter = new CodeWriter(codeWriterOptions);
compilation.DumpTo(codeWriter);
}
public CsEnumItem(CppEnumItem cppElement, string name, string value) : base(cppElement, name)
{
Value = value;
}
public override bool VisitCppEnumItem(CppEnumItem cppEnumItem)
{
return(base.VisitCppEnumItem(cppEnumItem));
}