internal Expression ParseReferredParameterOrType(TokenStore ts, ParseInfo parseInfo, bool allowType, bool allowVariable, bool allowArrayType)
{
Type t = null;
Expression exp = null;
StringBuilder var_fullname = new StringBuilder();
AToken tok = ts.Current;
while (exp == null && tok != null && tok.tok_type == TOKEN_TYPE.IDENTIFIER)
{
var_fullname.Append(tok.value);
// try local variable
if (allowVariable && (exp = parseInfo.GetReferredVariable(var_fullname.ToString())) != null) { ts.Next(); break; }
// try referred parameter
else if (allowVariable && (t = this.QueryParameterType(var_fullname.ToString())) != null)
{
exp = parseInfo.GetReferredParameter(t, tok.value);
ts.Next();
break;
}
// try static Generic Type
else if (allowType && ts.PeekTokenValue(1) == "<")
{
// v1.1: Generic Type reference
tok = ts.Next(); // to "<"
List<Type> param_types = new List<Type>();
List<Expression> param_list = ParseParameters(ts, parseInfo, param_types, true);
Assert((t = this.QueryStaticType(var_fullname.Append("`").Append(param_list.Count).ToString()).MakeGenericType(param_types.ToArray())) != null, tok);
t = ParseStaticTypeExtension(ts, t, allowArrayType);
exp = Expression.Constant(t); // Type: (T)x or T.xxx
break;
}
// try static Type
else if (allowType && (t = this.QueryStaticType(var_fullname.ToString())) != null)
{
// Static Type reference
ts.Next();
t = ParseStaticTypeExtension(ts, t, allowArrayType);
exp = Expression.Constant(t);
break;
}
// neither parameter or static type
if ((tok = ts.Next()) == null || tok.value != ".") break; // unexpected
var_fullname.Append(".");
tok = ts.Next(); // skip "."
}
return exp;
}
