private static string BalanceArithmetic(string operand, IGraphModel model)
{
switch (operand)
{
case "byte":
case "short":
case "int":
return("int");
case "long":
return("long");
case "float":
return("float");
case "double":
return("double");
case "":
return("");
default:
if (TypesHelper.IsEnumType(operand, model))
{
return("int");
}
else
{
return("-");
}
}
}
/// <summary>
/// Returns the types to which the operands must be casted to,
/// assuming an arithmetic operator.
/// Returns "" if the type can only be determined at runtime.
/// Returns "-" in case of a type error and/or if no operator working on numbers can be applied.
/// </summary>
private static string BalanceArithmetic(string left, string right, IGraphModel model)
{
switch (left)
{
case "byte":
case "short":
case "int":
switch (right)
{
case "byte": return("int");
case "short": return("int");
case "int": return("int");
case "long": return("long");
case "float": return("float");
case "double": return("double");
case "": return("");
default:
if (TypesHelper.IsEnumType(right, model))
{
return("int");
}
else
{
return("-");
}
}
case "long":
switch (right)
{
case "byte": return("long");
case "short": return("long");
case "int": return("long");
case "long": return("long");
case "float": return("float");
case "double": return("double");
case "": return("");
default:
if (TypesHelper.IsEnumType(right, model))
{
return("long");
}
else
{
return("-");
}
}
case "float":
switch (right)
{
case "byte": return("float");
case "short": return("float");
case "int": return("float");
case "long": return("float");
case "float": return("float");
case "double": return("double");
case "": return("");
default:
if (TypesHelper.IsEnumType(right, model))
{
return("float");
}
else
{
return("-");
}
}
case "double":
switch (right)
{
case "byte": return("double");
case "short": return("double");
case "int": return("double");
case "long": return("double");
case "float": return("double");
case "double": return("double");
case "": return("");
default:
if (TypesHelper.IsEnumType(right, model))
{
return("double");
}
else
{
return("-");
}
}
case "":
switch (right)
{
case "byte": return("");
case "short": return("");
case "int": return("");
case "long": return("");
case "float": return("");
case "double": return("");
case "": return("");
default:
if (TypesHelper.IsEnumType(right, model))
{
return("");
}
else
{
return("-");
}
}
default:
if (TypesHelper.IsEnumType(left, model) && TypesHelper.IsEnumType(right, model))
{
return("int");
}
else
{
return("-");
}
}
}
