static void Run()
{
string outputFile = "";
var attr = File.GetAttributes(inputPath);
if (attr.HasFlag(FileAttributes.Directory))
{
// handle directory
if (!Directory.Exists(inputPath))
{
throw new ArgumentException("Invalid input path");
}
var dirName = new DirectoryInfo(inputPath).Name;
outputFile = $"{inputPath}/{dirName}.asm";
var vmFiles = Directory.GetFiles(inputPath, "*.vm", SearchOption.TopDirectoryOnly);
using (var codeWriter = new CodeWriter(outputFile))
{
var flag = false;
foreach (var vmFile in vmFiles)
{
if (vmFile.EndsWith("Sys.vm"))
{
flag = true;
break;
}
}
if (flag)
{
codeWriter.WriteInit();
}
foreach (var vmFile in vmFiles)
{
using (var parser = new Parser(vmFile))
{
codeWriter.SetFileName(Path.GetFileNameWithoutExtension(vmFile));
Process(parser, codeWriter);
}
}
}
}
else
{
// handle a single source file
if (!File.Exists(inputPath) || Path.GetExtension(inputPath) != ".vm")
{
throw new ArgumentException("Invalid input path");
}
outputFile = Path.ChangeExtension(inputPath, ".asm");
using (var parser = new Parser(inputPath))
using (var codeWriter = new CodeWriter(outputFile))
{
Process(parser, codeWriter);
}
}
}