public static int Main(string[] args)
{
CatArgs parsedArgs;
if (!CatArgs.TryParse(args, out parsedArgs))
{
Console.Error.WriteLine("usage: wasm-cat file.wasm... [-o output.wasm]");
return(1);
}
var file = new WasmFile();
foreach (var path in parsedArgs.Inputs)
{
// Read the file and append its sections to the resulting file.
var inputFile = WasmFile.ReadBinary(path);
file.Sections.AddRange(inputFile.Sections);
// Also, set the WebAssembly version number to the max of the
// input files.
if (inputFile.Header.Version > file.Header.Version)
{
file.Header = inputFile.Header;
}
}
// Now write the file to standard output.
using (var outputStream = string.IsNullOrEmpty(parsedArgs.Output)
? Console.OpenStandardOutput()
: File.OpenWrite(parsedArgs.Output))
{
file.WriteBinaryTo(outputStream);
}
return(0);
}
public static bool TryParse(string[] Args, out CatArgs Result)
{
Result = default(CatArgs);
if (Args.Length == 0)
{
return(false);
}
var inputs = new List <string>();
for (int i = 0; i < Args.Length; i++)
{
if (Args[i] == "-o")
{
if (i == Args.Length - 1)
{
return(false);
}
i++;
Result.Output = Args[i];
}
else
{
inputs.Add(Args[i]);
}
}
Result.Inputs = inputs;
return(true);
}