protected override byte[] Generate(string inputFilePath, string inputFileContents, string defaultNamespace, IVsGeneratorProgress progressCallback)
{
string oldCurDir = Environment.CurrentDirectory;
try {
string inputFolder = Path.GetDirectoryName(inputFilePath);
Environment.CurrentDirectory = inputFolder; // --macros should be relative to file being processed
// Originally I wrote a conversion from IVsGeneratorProgress to
// IMessageSink so that errors could be reported immediately and
// directly to Visual Studio. This broke in a bizarre way when I
// added processing on a separate thread (in order to be able to
// abort the thread if it runs too long); I got the following
// InvalidCastException: "Unable to cast COM object of type 'System.__ComObject'
// to interface type 'Microsoft.VisualStudio.Shell.Interop.IVsGeneratorProgress'.
// This operation failed because the QueryInterface call on the COM component for
// the interface with IID '{BED89B98-6EC9-43CB-B0A8-41D6E2D6669D}' failed due to
// the following error: No such interface supported (Exception from HRESULT:
// 0x80004002 (E_NOINTERFACE))."
//
// A simple solution is to store the messages rather than reporting
// them immediately. I'll report the errors at the very end.
MessageHolder sink = new MessageHolder();
var sourceFile = new InputOutput((UString)inputFileContents, inputFilePath);
Compiler.KnownOptions["no-out-header"] = Pair.Create("", "Remove explanatory comment from output file");
Compiler.KnownOptions.Remove("parallel"); // not applicable to single file
Compiler.KnownOptions.Remove("noparallel"); // not applicable to single file
var c = new Compiler(sink, sourceFile)
{
AbortTimeout = TimeSpan.FromSeconds(10),
Parallel = false // only one file, parallel doesn't help
};
var argList = G.SplitCommandLineArguments(defaultNamespace);
var options = c.ProcessArguments(argList, true, false);
// Note: if default namespace is left blank, VS uses the namespace
// from project settings. Don't show an error in that case.
if (argList.Count > 1 || (argList.Count == 1 && options.Count > 0))
{
sink.Write(Severity.Error, "Command line", "'{0}': expected options only (try --help).", argList[0]);
}
string _;
if (options.TryGetValue("help", out _) || options.TryGetValue("?", out _))
{
var ms = new MemoryStream();
LeMP.Compiler.ShowHelp(LeMP.Compiler.KnownOptions, new StreamWriter(ms), false);
return(ms.GetBuffer());
}
LeMP.Compiler.WarnAboutUnknownOptions(options, sink, LeMP.Compiler.KnownOptions);
if (options.ContainsKey("no-out-header"))
{
c.NoOutHeader = true;
}
if (c.InLang == LesLanguageService.Value || inputFilePath.EndsWith(".les", StringComparison.OrdinalIgnoreCase))
{
c.MacroProcessor.PreOpenedNamespaces.Add(GSymbol.Get("LeMP.Prelude.Les"));
}
Configure(c);
_requestedExtension = c.OutExt;
c.Run();
// Report errors
foreach (var msg in sink.List)
{
ReportErrorToVS(progressCallback, msg.Severity, msg.Context, msg.Format, msg.Args);
}
return(Encoding.UTF8.GetBytes(c.Output.ToString()));
} finally {
Environment.CurrentDirectory = oldCurDir;
}
}
protected override byte[] Generate(string inputFilePath, string inputFileContents, string defaultNamespace, IVsGeneratorProgress progressCallback)
{
string oldCurDir = Environment.CurrentDirectory;
try {
string inputFolder = Path.GetDirectoryName(inputFilePath);
Environment.CurrentDirectory = inputFolder; // --macros should be relative to file being processed
// Originally I wrote a conversion from IVsGeneratorProgress to
// IMessageSink so that errors could be reported immediately and
// directly to Visual Studio. This broke in a bizarre way when I
// added processing on a separate thread (in order to be able to
// abort the thread if it runs too long); I got the following
// InvalidCastException: "Unable to cast COM object of type 'System.__ComObject'
// to interface type 'Microsoft.VisualStudio.Shell.Interop.IVsGeneratorProgress'.
// This operation failed because the QueryInterface call on the COM component for
// the interface with IID '{BED89B98-6EC9-43CB-B0A8-41D6E2D6669D}' failed due to
// the following error: No such interface supported (Exception from HRESULT:
// 0x80004002 (E_NOINTERFACE))."
//
// A simple solution is to store the messages rather than reporting
// them immediately. I'll report the errors at the very end.
MessageHolder sink = new MessageHolder();
var sourceFile = new InputOutput((UString)inputFileContents, inputFilePath);
Compiler.KnownOptions["no-out-header"] = Pair.Create("", "Remove explanatory comment from output file");
Compiler.KnownOptions.Remove("parallel"); // not applicable to single file
Compiler.KnownOptions.Remove("noparallel"); // not applicable to single file
var c = new Compiler(sink, sourceFile) {
AbortTimeout = TimeSpan.FromSeconds(10),
Parallel = false // only one file, parallel doesn't help
};
var argList = G.SplitCommandLineArguments(defaultNamespace);
var options = c.ProcessArguments(argList, true, false);
// Note: if default namespace is left blank, VS uses the namespace
// from project settings. Don't show an error in that case.
if (argList.Count > 1 || (argList.Count == 1 && options.Count > 0))
sink.Write(Severity.Error, "Command line", "'{0}': expected options only (try --help).", argList[0]);
string _;
if (options.TryGetValue("help", out _) || options.TryGetValue("?", out _))
{
var ms = new MemoryStream();
LeMP.Compiler.ShowHelp(LeMP.Compiler.KnownOptions, new StreamWriter(ms), false);
return ms.GetBuffer();
}
LeMP.Compiler.WarnAboutUnknownOptions(options, sink, LeMP.Compiler.KnownOptions);
if (options.ContainsKey("no-out-header"))
c.NoOutHeader = true;
if (c.InLang == LesLanguageService.Value || inputFilePath.EndsWith(".les", StringComparison.OrdinalIgnoreCase))
c.MacroProcessor.PreOpenedNamespaces.Add(GSymbol.Get("LeMP.Prelude.Les"));
Configure(c);
_requestedExtension = c.OutExt;
c.Run();
// Report errors
foreach (var msg in sink.List)
ReportErrorToVS(progressCallback, msg.Severity, msg.Context, msg.Format, msg.Args);
return Encoding.UTF8.GetBytes(c.Output.ToString());
} finally {
Environment.CurrentDirectory = oldCurDir;
}
}