private void GenIsTypeFunc(CodePrinter prtDecl, CodePrinter prtImpl, bool currIsObject)
{
if (CurrType.IsValueType || !CurrType.NeedGenIsType)
{
return;
}
CodePrinter prt = new CodePrinter();
prt.AppendFormat("uint8_t {0}(uint32_t typeID)",
GenContext.GetIsTypeFuncName(CurrType));
string strDecl = prt.ToString() + ";\n";
prt.AppendLine("\n{");
++prt.Indents;
var derivedRange = new List <TypeX>(CurrType.DerivedTypes);
derivedRange.Add(CurrType);
List <TypeX> derTypes = new List <TypeX>();
foreach (var derTyX in derivedRange)
{
// 跳过不分配在堆上的类型
if (!derTyX.IsInstantiated || derTyX.Def.IsInterface)
{
continue;
}
// 如果当前类型是 object, 则跳过值类型
if (currIsObject && derTyX.IsValueType)
{
continue;
}
derTypes.Add(derTyX);
}
if (derTypes.Count > 0)
{
prt.AppendLine("switch (typeID)\n{");
++prt.Indents;
derTypes.Sort((lhs, rhs) =>
GenContext.GetTypeID(lhs).CompareTo(GenContext.GetTypeID(rhs)));
foreach (var derTyX in derTypes)
{
prt.AppendFormatLine("// {0}",
Helper.EscapeString(derTyX.GetNameKey()));
prt.AppendFormatLine("case {0}:",
GenContext.GetTypeID(derTyX));
}
++prt.Indents;
prt.AppendLine("return 1;");
--prt.Indents;
--prt.Indents;
prt.AppendLine("}");
}
prt.AppendLine("return 0;");
--prt.Indents;
prt.AppendLine("}");
prtDecl.Append(strDecl);
prtImpl.Append(prt.ToString());
}