private static void WriteTemplateTraits(CCodeWriterText c, INamedTypeSymbol namedTypeSymbol)
{
if (namedTypeSymbol.IsPrimitiveValueType() || namedTypeSymbol.TypeKind == TypeKind.Enum || namedTypeSymbol.SpecialType == SpecialType.System_Void)
{
// value to class
c.TextSpanNewLine("template<>");
c.TextSpan("struct");
c.WhiteSpace();
c.TextSpan("valuetype_to_class<");
c.WriteType(namedTypeSymbol);
c.TextSpan(">");
c.WhiteSpace();
c.TextSpan("{ typedef");
c.WhiteSpace();
c.WriteType(namedTypeSymbol, true, false, true);
c.WhiteSpace();
c.TextSpanNewLine("type; };");
// class to value
c.TextSpanNewLine("template<>");
c.TextSpan("struct");
c.WhiteSpace();
c.TextSpan("class_to_valuetype<");
c.WriteType(namedTypeSymbol, true, false, true);
c.TextSpan(">");
c.WhiteSpace();
c.TextSpan("{ typedef");
c.WhiteSpace();
c.WriteType(namedTypeSymbol);
c.WhiteSpace();
c.TextSpanNewLine("type; };");
// map class to valuetype
if (namedTypeSymbol.IsAtomicType())
{
c.TextSpanNewLine("template<>");
c.TextSpan("struct gc_traits<");
c.WriteType(namedTypeSymbol, true, false, true);
c.TextSpanNewLine("> { constexpr static const GCAtomic value = GCAtomic::Default; };");
}
}
// type holder
var isTypeHolder = namedTypeSymbol.SpecialType == SpecialType.None && namedTypeSymbol.TypeKind == TypeKind.Struct && namedTypeSymbol.Name.EndsWith("__type");
var isNotModule = namedTypeSymbol.Name != "<Module>";
if (!isTypeHolder && isNotModule)
{
c.TextSpan("template<");
if (namedTypeSymbol.IsGenericType || namedTypeSymbol.IsAnonymousType)
{
c.WriteTemplateDefinitionParameters(namedTypeSymbol);
}
c.TextSpanNewLine(">");
c.TextSpan("struct");
c.WhiteSpace();
c.TextSpan("type_holder<");
c.WriteType(namedTypeSymbol, true, false, true);
c.TextSpan(">");
c.WhiteSpace();
c.TextSpan("{ typedef");
c.WhiteSpace();
c.WriteType(namedTypeSymbol, true, false, true, typeOfName: true);
c.WhiteSpace();
c.TextSpanNewLine("type; };");
}
}
