Exemple #1
0
        public void ParseFile([CanBeNull] string[] hLines)
        {
            if (hLines == null)
            {
                return;
            }

            CommandTable.Clear();
            CommandList.Clear();
            DataTable.Clear();
            DataList.Clear();

            var currentSection = EFileSection.Undefined;

            foreach (var hLine in hLines)
            {
                var line = hLine;

                // Check for comments
                var commentIndex = line.IndexOf("@", StringComparison.Ordinal);
                if (commentIndex > -1)
                {
                    line = line.Substring(0, commentIndex);
                }

                commentIndex = line.IndexOf("//", StringComparison.Ordinal);
                if (commentIndex > -1)
                {
                    line = line.Substring(0, commentIndex);
                }

                // Remove leading, ending spaces, tabs
                line = line.Trim(' ', '\t');
                if (string.IsNullOrEmpty(line))
                {
                    continue;
                }

                // Check for sections
                if (line.StartsWith(".", StringComparison.Ordinal))
                {
                    if (line.StartsWith(".text", StringComparison.Ordinal))
                    {
                        currentSection = EFileSection.Text;
                        continue;
                    }

                    if (line.StartsWith(".data", StringComparison.Ordinal))
                    {
                        currentSection = EFileSection.Data;
                        continue;
                    }

                    if (line.StartsWith(".global", StringComparison.Ordinal) || line.StartsWith(".globl", StringComparison.Ordinal))
                    {
                        var split = line.Split(new [] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
                        if (split.Length != 2)
                        {
                            throw new ArgumentException();
                        }

                        EntryFunction = split[1];
                        continue;
                    }

                    if (line.StartsWith(".align", StringComparison.Ordinal))
                    {
                        var split = line.Split(new[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
                        if (split.Length != 2)
                        {
                            throw new ArgumentException();
                        }

                        ParseAlign(split[1]);
                        continue;
                    }

                    if (line.StartsWith(".type", StringComparison.Ordinal))
                    {
                        // TODO: Implement missing member
                        continue;
                    }

                    if (line.StartsWith(".Lfe", StringComparison.Ordinal))
                    {
                        // TODO: Implement missing member
                        continue;
                    }

                    if (line.StartsWith(".size", StringComparison.Ordinal))
                    {
                        // TODO: Implement missing member
                        continue;
                    }

                    if (line.Equals(".end", StringComparison.Ordinal))
                    {
                        // End of file
                        return;
                    }
                }

                switch (currentSection)
                {
                case EFileSection.Undefined:
                    break;

                case EFileSection.Text:
                    ParseTextSection(line);
                    break;

                case EFileSection.Data:
                    ParseDataSection(line);
                    break;

                case EFileSection.Comm:
                    break;

                default:
                    throw new ArgumentOutOfRangeException();
                }
            }
        }