private static void BuildClassDeclaration(TypeDecl decl, CodeWriter writer)
{
var settings = GeneratorSettingsProvider.Get(decl.Module.ModuleName);
var type = decl.Name.Underscore();
// forwards
writer.AppendLine($"class {type}_key_impl; using {type}_key = dot::ptr<{type}_key_impl>;");
writer.AppendLine($"class {type}_data_impl; using {type}_data = dot::ptr<{type}_data_impl>;");
// Get unique keys and data from elements
var keyElements = decl.Elements.Where(e => decl.Keys.Contains(e.Name)).ToList();
var dataForwards = keyElements.Where(e => e.Data != null)
.Where(e => e.Data.Module.ModuleName == decl.Module.ModuleName)
.Select(e => $"{e.Data.Name.Underscore()}_data").ToList();
var keysForwards = keyElements.Where(e => e.Key != null)
.Where(e => e.Key.Module.ModuleName == decl.Module.ModuleName)
.Select(e => $"{e.Key.Name.Underscore()}_key").ToList();
var forwards = keysForwards.Union(dataForwards).Distinct();
// Appends forwards
foreach (var f in forwards)
{
writer.AppendLine($"class {f}_impl; using {f} = dot::ptr<{f}_impl>;");
}
writer.AppendNewLineWithoutIndent();
writer.AppendLine($"inline {type}_key make_{type}_key();");
writer.AppendNewLineWithoutIndent();
writer.AppendLines(CommentHelper.FormatComment(decl.Comment));
writer.AppendLine($"class {settings.DeclSpec} {type}_key_impl : public key_impl<{type}_key_impl,{type}_data_impl>");
writer.AppendLine("{");
writer.PushIndent();
writer.AppendLine($"typedef {type}_key_impl self;");
writer.AppendLine($"friend {type}_key make_{type}_key();");
writer.PopIndent();
writer.AppendNewLineWithoutIndent();
writer.AppendLine("public: // FIELDS");
writer.AppendNewLineWithoutIndent();
if (keyElements.Any())
{
writer.PushIndent();
CppElementBuilder.WriteElements(keyElements, writer);
writer.PopIndent();
}
writer.AppendLine("public:");
writer.PushIndent();
writer.AppendLine("virtual dot::type_t type();");
writer.AppendLine("static dot::type_t typeof();");
writer.PopIndent();
writer.AppendLine("};");
writer.AppendNewLineWithoutIndent();
writer.AppendLine("/// Create an empty instance.");
writer.AppendLine($"inline {type}_key make_{type}_key() {{ return new {type}_key_impl; }}");
}