public static string TranslateTypeName(TpmType t)
{
var underType = t.StripTypedefs();
if (underType is TpmValueType)
{
return(TargetLang.NameFor(underType.SpecName));
}
return(TargetLang.DotNet ? (underType is TpmUnion ? "I" : "") + TypeToDotNet(underType.SpecName)
: underType.SpecName);
}
/// <summary> Makes constant values specified as arithmetic expressions comply with the current
/// langauge syntax (adds enum type name qualifiers and type casts when necessary, eliminates
/// sizeof() operators when unsupported, etc.) </summary>
public static string TranslateConstExpr(TpmConstExpr ce, TpmEnum enclosingEnum = null)
{
var nameDelimiters = new char[] { ' ', ',', '{', '}',
'(', ')', '+', '-', '<', '*', '/', '`' };
string suffix = TargetLang.Java ? ".toInt()" : "";
string expr = ce.Expr;
string[] tokens = expr.Split(nameDelimiters);
bool sizeofOccurred = false,
commentNeeded = false;
foreach (string token in tokens)
{
if (token.Length == 0)
{
continue;
}
if (token == "sizeof")
{
Debug.Assert(!sizeofOccurred);
sizeofOccurred = true;
continue;
}
if (Expression.IsNumber(token))
{
if (token == "00")
{
Debug.Assert(expr == token);
expr = "0";
}
Debug.Assert(!sizeofOccurred);
continue;
}
TpmNamedConstant nc = TpmTypes.LookupConstant(token);
if (enclosingEnum != null && nc?.EnclosingEnum == enclosingEnum)
{
// Members of the enum being processed do not need to be qualified
Debug.Assert(token == nc.SpecName);
expr = expr.Replace(token, nc.Name + suffix);
continue;
}
if (!TpmTypes.ContainsConstant(token))
{
// This must be a type name operand of sizeof()
Debug.Assert(sizeofOccurred);
sizeofOccurred = false;
TpmType t = TpmTypes.Lookup(token);
if (t is TpmStruct || TargetLang.IsOneOf(Lang.Java, Lang.JS, Lang.Py))
{
string sizeofExpr = "sizeof(" + token + ")";
Debug.Assert(expr.Contains(sizeofExpr));
commentNeeded = TargetLang.Py;
string origExpr = TargetLang.Py ? "" : $"/*{sizeofExpr}*/";
expr = expr.Replace(sizeofExpr, $"0x{t.GetSize():X}{origExpr}");
}
else if (TargetLang.DotNet)
{
expr = expr.Replace(token, t.StripTypedefs().Name);
}
}
else
{
nc = TpmTypes.LookupConstant(token);
var translated = nc.QualifiedName + suffix;
if (!TargetLang.IsGenerated(nc.EnclosingEnum))
{
translated = nc.NumericValue.ToString();
if (!TargetLang.Py)
{
translated += "/*" + token + "*/";
}
else
{
commentNeeded = true;
}
}
expr = expr.Replace(token, translated);
}
} // foreach token
if (TargetLang.DotNet && expr.Contains("<<"))
{
// Shift operator in .Net requires right operand of type 'int' and unsigned left one.
int curPos = 0;
expr = expr.Replace(" << ", "<<");
do
{
int pos = expr.IndexOf("<<", curPos);
if (pos == -1)
{
break;
}
curPos = pos + 2 + 6; // Add sizes of "<<" and "(uint)"
while (char.IsLetterOrDigit(expr[--pos]) || expr[pos] == '.')
{
continue;
}
expr = expr.Insert(pos + 1, "(uint)");
} while (true);
expr = expr.Replace("<<", " << (int)");
}
if (commentNeeded)
{
expr += $" # {ce.Expr}";
}
return(expr);
} // TranslateConstExpr()
public TpmType StripTypedefs() => this is TpmTypedef?UnderlyingType.StripTypedefs() : this;
