public bool TryResolveType(CppType cppType, out TypeInfo typeInfo, bool lookForward = true)
{
if (TryGetType(cppType.GetDisplayName(), out typeInfo))
{
return(true);
}
if (cppType is CppQualifiedType qualified)
{
return(TryResolveType(qualified.ElementType, out typeInfo, lookForward));
}
if (cppType is CppPointerType pointer)
{
if (TryResolveType(pointer.ElementType, out var innerTypeInfo, lookForward))
{
typeInfo = new TypeInfo(cppType.GetDisplayName(), cppType, PointerType(innerTypeInfo.TypeSyntax));
_nativeMap.Add(typeInfo.Name, typeInfo);
return(true);
}
}
if (lookForward)
{
_buildType(cppType).GetAwaiter().GetResult();
return(TryResolveType(cppType, out typeInfo, false));
}
return(false);
}
internal string MapToManagedApiType(CppType nativeType)
{
string type = nativeType.GetDisplayName();
if (IsKnownNativeType(nativeType))
{
return(RenameForApi(CleanType(type), false));
}
type = NativeToPinvokeType(nativeType);
if (type.Contains("/*usize_t*/"))
{
return(nameof(UInt64));
}
if (type.Contains("/*size_t*/"))
{
return(nameof(Int64));
}
if (type.Contains("/*bool*/"))
{
return(nameof(Boolean));
}
return(type);
}
internal string NativeToPinvokeType(CppType nativeType)
{
string type = nativeType.GetDisplayName();
bool isPtr = type.Trim().EndsWith("*");
type = CleanType(type);
if (_mappings.TryGetValue(type, out string managedType))
{
return(managedType + (isPtr ? "*" : ""));
}
if (isPtr && _mappings.TryGetValue(type + "*", out string managedTypePtr))
{
return(managedTypePtr);
}
if (_registeredTypes.Contains(type))
{
return("IntPtr");
}
Logger.LogWarning($"No C# equivalent for {type}");
return(type + (isPtr ? "*" : ""));
}
protected TypeDesc GetTypeDesc(CppType type)
{
var t = new TypeDesc(type.GetDisplayName(), type);
if (type is CppPointerType pointerType)
{
t.FunctionTypeRef = pointerType.ElementType as CppFunctionType;
}
return(t);
}
internal bool IsKnownNativeType(CppType nativeTtype)
{
var type = nativeTtype.GetDisplayName();
if (_registeredTypes.Any(rt => rt == CleanType(type)))
{
return(true);
}
return(false);
}
/// <summary>
/// If a type defined under another type, then print the full name, e.g. Class1::Class2
/// </summary>
public static string GetFullTypeName(this CppType cppType)
{
string name = cppType.GetDisplayName();
while (cppType.Parent is CppType parentType)
{
name = parentType.GetDisplayName() + "::" + name;
cppType = parentType;
}
return(name);
}
private static string GetCppType(CppType type)
{
var typeName = type.GetDisplayName();
// remove the const
typeName = typeName.Replace("const ", "");
// replace the [] with a *
int start;
while ((start = typeName.IndexOf("[")) != -1)
{
var end = typeName.IndexOf("]");
typeName = typeName.Substring(0, start) + "*" + typeName.Substring(end + 1);
}
return(typeName);
}
public static bool IsVoid(this CppType type) => type.GetDisplayName() == "void";
public static string GetVType(CppType cppType)
{
// unwrap any const vars
if (cppType.TypeKind == CppTypeKind.Qualified && cppType is CppQualifiedType cppQualType)
{
if (cppQualType.Qualifier == CppTypeQualifier.Const)
{
return(GetVType(cppQualType.ElementType));
}
}
if (cppType is CppClass cppClass && cppClass.ClassKind == CppClassKind.Union)
{
Console.WriteLine($"Found union we can't handle! [{cppType.Span}]");
return("voidptr");
}
if (cppType.TypeKind == CppTypeKind.Enum || cppType.TypeKind == CppTypeKind.Primitive)
{
return(GetVType(cppType.GetDisplayName()));
}
if (cppType.TypeKind == CppTypeKind.Typedef && cppType is CppTypedef typeDefType)
{
if (typeDefType.IsPrimitiveType())
{
return(typeDefType.ElementTypeAsPrimitive().GetVType());
}
else
{
return(GetVType(typeDefType.ElementType));
}
}
if (cppType.TypeKind == CppTypeKind.Pointer)
{
var cppPtrType = cppType as CppPointerType;
// special V types
if (cppPtrType.GetDisplayName() == "const char*" || cppPtrType.GetDisplayName() == "char*")
{
return("byteptr");
}
if (cppPtrType.GetDisplayName() == "const void*" || cppPtrType.GetDisplayName() == "void*")
{
return("voidptr");
}
// double pointer check
if (cppPtrType.ElementType.TypeKind == CppTypeKind.Pointer)
{
if (cppPtrType.ElementType.TypeKind == CppTypeKind.Pointer)
{
return($"&voidptr /* {cppPtrType.GetDisplayName()} */");
}
return($"&{GetVType(cppPtrType.ElementType)} /* {cppPtrType.GetDisplayName()} */");
}
// unwrap any const vars
if (cppPtrType.ElementType.TypeKind == CppTypeKind.Qualified && cppPtrType.ElementType is CppQualifiedType qualType)
{
if (qualType.Qualifier == CppTypeQualifier.Const)
{
if (qualType.ElementType is CppPrimitiveType qualPrimType && qualPrimType.Kind == CppPrimitiveKind.Void)
{
return($"voidptr");
}
return("&" + GetVType(qualType.ElementType));
}
}
// function pointers
if (cppPtrType.ElementType.TypeKind == CppTypeKind.Function)
{
var funcType = cppPtrType.ElementType as CppFunctionType;
if (funcType.Parameters.Count == 1 && funcType.Parameters[0].Type is CppPointerType cppPtrPtrType && cppPtrPtrType.ElementType.TypeKind == CppTypeKind.Function)
{
funcType = cppPtrPtrType.ElementType as CppFunctionType;
}
// HACK: for some reason, there can occassionally be function pointer args inside a function pointer argument
// for some reason. We just peel away the top function pointer and use that as the full type to fix the issue.
foreach (var p in funcType.Parameters)
{
if (p.Type is CppPointerType pType && pType.ElementType.TypeKind == CppTypeKind.Function)
{
funcType = pType.ElementType as CppFunctionType;
}
}
string GetReturnType()
{
// void return
if (funcType.ReturnType is CppPrimitiveType cppPrimType && cppPrimType.Kind == CppPrimitiveKind.Void)
{
return(null);
}
return(GetVType(funcType.ReturnType));
};
// easy case: no parameters
if (funcType.Parameters.Count == 0)
{
return($"fn() {GetReturnType()}".TrimEnd());
}
var sb = new StringBuilder();
sb.Append("fn(");
foreach (var p in funcType.Parameters)
{
var paramType = GetVType(p.Type);
if (paramType.Contains("fn"))
{
// TODO: typedef the function param
var typeDef = $"pub type Fn{V.ToPascalCase(p.Name)} {paramType}";
}
sb.Append(paramType);
if (funcType.Parameters.Last() != p)
{
sb.Append(", ");
}
}
sb.Append(")");
var ret = GetReturnType();
if (ret != null)
{
sb.Append($" {ret}");
}
// check for a function pointer that has a function as a param. This is currently invalid in V.
var definition = sb.ToString();
if (definition.LastIndexOf("fn") > 2)
{
return($"voidptr /* {definition} */");
}
return(sb.ToString());
}
else if (cppPtrType.ElementType.TypeKind == CppTypeKind.Typedef)
{
// functions dont get passed with '&' so we have to see if this Typedef has a function in its lineage
if (cppPtrType.ElementType is CppTypedef td && td.IsFunctionType())
{
return(GetVType(cppPtrType.ElementType));
}
return("&" + GetVType(cppPtrType.ElementType));
}
return("&" + GetVType(cppPtrType.ElementType.GetDisplayName()));
} // end Pointer
if (cppType.TypeKind == CppTypeKind.Array)
{
var arrType = cppType as CppArrayType;
if (arrType.ElementType is CppClass arrParamClass)
{
if (arrParamClass.Name.Contains("va_"))
{
Console.WriteLine($"Found unhandled vararg param! [{cppType}]");
return("voidptr /* ...voidptr */");
}
}
var eleType = GetVType(arrType.ElementType);
if (arrType.Size > 0)
{
return($"[{arrType.Size}]{eleType}");
}
return($"[]{eleType}");
}
return(GetVType(cppType.GetDisplayName()));
}
public static bool IsBool(this CppType type) => type.GetDisplayName() == "bool";