private void WriteEnum(IREnum e, TextWriter w, string prefix)
{
string reference = String.Format(_Reference, e.OriginalName);
WriteComments(w, prefix, reference);
// Type names are kept in PascalCase!
w.WriteLine("{0}enum {1} {{", prefix, e.ShortName);
if (ProtoHelper.HasEnumAlias(e))
{
w.WriteLine("{0}option allow_alias = true;", prefix + "\t");
}
// Write out all properties of the enum.
foreach (IREnumProperty prop in e.Properties.OrderBy(prop => prop.Value))
{
// Enum property names are NOT converted to snake case!
w.WriteLine("{0}{1} = {2};", prefix + "\t", prop.Name, prop.Value);
}
// End enum.
w.WriteLine("{0}}}", prefix);
w.WriteLine();
}
// Returns true if the provided enum uses aliases inside the body.
public static bool HasEnumAlias(IREnum enumType)
{
var propertyValues = enumType.Properties.Select(x => x.Value);
var propertyLength = propertyValues.Count();
var distinctPropertyLength = propertyValues.Distinct().Count();
// TRUE if distinct length is different from normal length.
return(propertyLength != distinctPropertyLength);
}
private void WriteEnum(IREnum e, TextWriter w, string prefix)
{
string reference = String.Format(_Reference, e.OriginalName);
WriteComments(w, prefix, reference);
// Type names are kept in PascalCase!
w.WriteLine("{0}enum {1} {{", prefix, e.ShortName);
if (ProtoHelper.HasEnumAlias(e))
{
w.WriteLine("{0}option allow_alias = true;", prefix + "\t");
}
// Make a copy of all properties.
var propList = e.Properties.ToList();
// For enums, the default value is the first defined enum value, which must be 0.
// Find or create that property with value 0
IREnumProperty zeroProp;
IEnumerable <IREnumProperty> zeroPropEnumeration = propList.Where(prop => prop.Value == 0);
if (!zeroPropEnumeration.Any())
{
zeroProp = new IREnumProperty()
{
// Enum values are all shared within the same namespace, so they must be
// unique within that namespace!
Name = e.ShortName.ToUpper() + "_AUTO_INVALID",
Value = 0,
};
}
else
{
zeroProp = zeroPropEnumeration.First();
// And remove the property from the collection.
propList.Remove(zeroProp);
}
// Write the zero property first - AS REQUIRED PER PROTO3!
w.WriteLine("{0}{1} = {2};", prefix + "\t", zeroProp.Name, zeroProp.Value);
// Write out the other properties of the enum next
foreach (IREnumProperty prop in propList.OrderBy(prop => prop.Value))
{
// Enum property names are NOT converted to snake case!
w.WriteLine("{0}{1} = {2};", prefix + "\t", prop.Name, prop.Value);
}
// End enum.
w.WriteLine("{0}}}", prefix);
w.WriteLine();
}
