public static void Mangle(InputContext context)
{
var mangling = new ManglingContext();
// Mangle the content in each file (generated code will
// need to be inserted into one of these to be mangled)
foreach (var input in context.inputs) {
input.tree.AcceptVisitor(mangling);
}
}
public static bool Lower(InputContext context)
{
var lowering = new LoweringContext(context);
// Cache information about important types
foreach (var code in knownTypeCodes) {
lowering.knownTypes[context.compilation.FindType(code)] = code;
}
// Lower the content in each file (generated code will
// need to be inserted into one of these to be lowered)
foreach (var input in context.inputs) {
lowering.resolver = input.resolver;
lowering.input = input;
input.tree.AcceptVisitor(lowering);
}
return lowering.wasSuccessful;
}
public static int Main(string[] args)
{
var boolFlags = new Dictionary<string, bool> {
{ "--minify", false },
{ "--mangle", false },
{ "--timing", false },
{ "--server", false },
{ "--source-map", false },
};
string outputPath = null;
// Parse command-line arguments
var inputs = new List<Input>();
for (var i = 0; i < args.Length; i++) {
var arg = args[i];
// Help
if (arg == "-h" || arg == "-help" || arg == "--help" || arg == "-?" || arg == "/?") {
WriteUsage();
return 0;
}
// Boolean flags
if (boolFlags.ContainsKey(arg)) {
if (boolFlags[arg]) {
Console.WriteLine("Duplicate flag \"" + arg + "\"");
return 1;
}
boolFlags[arg] = true;
continue;
}
// Output file
if (arg == "--output" || arg == "-o") {
if (outputPath != null) {
Console.WriteLine("Duplicate flag \"" + arg + "\"");
return 1;
}
if (i + 1 == args.Length) {
Console.WriteLine("Missing path for flag \"" + arg + "\"");
return 1;
}
outputPath = args[++i];
continue;
}
// Invalid flags
if (arg.StartsWith("-")) {
Console.WriteLine("Invalid flag \"" + arg + "\"");
return 1;
}
// Input files
inputs.Add(new Input(arg, File.ReadAllText(arg)));
}
// The server option ignores all other options
if (boolFlags["--server"]) {
return RunLocalServer() ? 0 : 1;
}
// Show usage if there are no inputs
if (inputs.Count == 0) {
WriteUsage();
return 1;
}
// Parse inputs
var context = new InputContext();
if (!context.Compile(inputs)) {
Console.Write(context.GenerateLog());
return 1;
}
// Generate output
var output = new OutputContext(context);
output.ShouldMinify = boolFlags["--minify"];
output.ShouldMangle = boolFlags["--mangle"];
output.SourceMap = boolFlags["--source-map"] ? outputPath != null ? SourceMap.External : SourceMap.Inline : SourceMap.None;
if (outputPath != null) {
File.WriteAllText(outputPath, output.Code);
if (output.SourceMap == SourceMap.External) {
File.WriteAllText(outputPath + ".map", output.SourceMapCode);
}
} else {
Console.Write(output.Code);
}
// Write out timing info for debugging
if (boolFlags["--timing"]) {
foreach (var pair in context.timingInMilliseconds) {
Console.Error.WriteLine(pair.Key + ": " + pair.Value + "ms");
}
}
return 0;
}
public static bool RunLocalServer()
{
if (!HttpListener.IsSupported) {
return false;
}
var listener = new HttpListener();
var address = "http://localhost:8008/";
listener.Prefixes.Add(address);
listener.Start();
Console.WriteLine("Serving on " + address);
while (true) {
var context = listener.GetContext();
var request = context.Request;
var response = context.Response;
var content = new StreamReader(request.InputStream, request.ContentEncoding).ReadToEnd();
var input = new InputContext();
var responseText = "";
try {
if (!input.Compile(new List<Input> { new Input("<input>", content) })) {
responseText = input.GenerateLog();
} else {
var output = new OutputContext(input);
output.ShouldMinify = request.QueryString["minify"] == "true";
output.ShouldMangle = request.QueryString["mangle"] == "true";
output.SourceMap = request.QueryString["sourceMap"] == "true" ? SourceMap.Inline : SourceMap.None;
responseText = output.Code;
}
} catch (Exception error) {
responseText = error.Message + "\n" + error.StackTrace;
}
var buffer = Encoding.UTF8.GetBytes(responseText);
response.Headers["Access-Control-Allow-Origin"] = "*";
response.ContentLength64 = buffer.Length;
try {
response.OutputStream.Write(buffer, 0, buffer.Length);
} catch (IOException) {
}
response.OutputStream.Close();
}
}
public Visitor(InputContext context)
{
this.context = context;
}
private LoweringContext(InputContext context)
{
this.context = context;
}