public EnumDef AddEnum(string name, BaseType t)
{
if (!t.IsInteger())
{
throw new InvalidEnumArgumentException("Underlying enum type must be integral.");
}
var def = new EnumDef {
Name = name,
IsUnion = t == BaseType.UType,
TypeBuilder = this,
};
if (Enums.Add(name, def))
{
throw new Exception("enum already exists!");
}
def.UnderlyingType.BaseType = t;
def.UnderlyingType.EnumDef = def;
if (def.IsUnion)
{
def.Values.Add("NONE", new EnumVal {
Name = "NONE", Value = 0,
});
}
return(def);
}
private int ParseEnumValDecl(int offset, string schemaStr, EnumDef enumDef, bool isUnion)
{
string identifier;
string constantValue = null;
offset = ParseIdentifier(offset, schemaStr, out identifier);
offset = SkipWhitespace(offset, schemaStr);
if (schemaStr[offset] == '=')
{
offset++;
offset = ParseConstant(offset, schemaStr, out constantValue);
}
var enumVal = new EnumVal();
enumVal.Name = identifier;
if (constantValue != null)
{
enumVal.Value = long.Parse(constantValue);
}
if (isUnion && enumVal.Value.Value != 0)
{
enumVal.StructDef = TypeBuilder.LookupOrCreateStruct(identifier);
}
enumDef.Add(enumVal);
return(offset);
}
public FlatBuffersType(BaseType baseType = BaseType.None, StructDef structDef = null, EnumDef enumDef = null)
{
BaseType = baseType;
ElementType = BaseType.None;
StructDef = structDef;
EnumDef = enumDef;
}
private int ParseEnumValDeclStar(int offset, string schemaStr, EnumDef enumDef, bool isUnion)
{
var finished = false;
var expectComma = false;
while (offset < schemaStr.Length && !finished)
{
offset = SkipWhitespace(offset, schemaStr);
if (schemaStr[offset] == '}')
{
finished = true;
offset++;
}
else
{
if (expectComma)
{
offset = Consume(",", offset, schemaStr);
offset = SkipWhitespace(offset, schemaStr);
}
else
{
expectComma = true;
}
offset = ParseEnumValDecl(offset, schemaStr, enumDef, isUnion);
}
}
return(offset);
}
