public static EnumDefNode Parse(Lexer lex)
{
EnumDefNode n = new EnumDefNode();
lex.Dequeue("enum");
var tkn = lex.Dequeue(TokenType.Identifier);
n.Identifier = tkn.Value;
lex.Dequeue(TokenType.LBrace);
bool isLast = false;
while (EnumEntryNode.IsPresent(lex))
{
if (isLast)
{
throw ExceptionProvider.Syntax(tkn.Cursor, "Expected ',' or end of enum");
}
n.Entries.Add(EnumEntryNode.Parse(lex));
if (!lex.DequeueIf(TokenType.Comma, out tkn))
{
isLast = true;
}
}
lex.Dequeue(TokenType.RBrace);
return(n);
}
public static EnumEntryNode Parse(Lexer lex)
{
EnumEntryNode n = new EnumEntryNode();
var tkn = lex.Dequeue(TokenType.Identifier);
n.Identifier = tkn.Value;
if (lex.DequeueIf(TokenType.Assign, out tkn))
{
n.Value = ConstExprNode.Parse(lex);
}
return(n);
}