private static void LoadAttributes(StructLexer lexer, List <Attribute> attrs)
{
if (lexer.PeekNextToken() == StructTokenType.OpenSquare)
{
lexer.GetNextToken(StructTokenType.OpenSquare);
while (true)
{
TextPosition pos = lexer.CurrentPosition;
string attrName = lexer.GetNextToken(StructTokenType.String);
string attrValue;
if (lexer.CheckNextToken(StructTokenType.Equals))
{
attrValue = lexer.GetAttributeValue(out pos);
}
else
{
attrValue = "1";
}
attrs.Add(new Attribute(attrName, attrValue, pos));
if (lexer.CheckNextToken(StructTokenType.CloseSquare))
{
break;
}
if (!lexer.CheckNextToken(StructTokenType.Comma))
{
throw new Exception("Unexpected token");
}
}
}
}
private void LoadEnum(StructLexer lexer, List <Attribute> attrs)
{
string name = lexer.GetNextToken(StructTokenType.String);
EnumDef enumDef = new EnumDef(_curStructFile, name);
LoadAttributes(lexer, attrs);
foreach (Attribute attr in attrs)
{
enumDef.SetAttribute(attr.Key, attr.Value);
}
lexer.GetNextToken(StructTokenType.OpenCurly);
uint lastValue = UInt32.MaxValue;
while (!lexer.CheckNextToken(StructTokenType.CloseCurly))
{
string constName = lexer.GetNextToken(StructTokenType.String);
if (lexer.CheckNextToken(StructTokenType.Equals))
{
string constValue = lexer.GetNextToken(StructTokenType.String);
lastValue = (uint)ExpressionParser.Parse(constValue).EvaluateInt(null);
}
else
{
lastValue++;
}
enumDef.AddValue(constName, lastValue);
if (!lexer.CheckNextToken(StructTokenType.Comma))
{
if (lexer.PeekNextToken() != StructTokenType.CloseCurly)
{
throw new Exception("Unexpected token in enum: " + lexer.PeekNextToken());
}
}
}
_curStructFile.Add(enumDef);
}