public static IDiagnosticsSink InsertSink(
this IDiagnosticsSink sink)
{
var subSink = new DiagnosticSink();
sink.Add(subSink);
return(subSink);
}
public static IDiagnosticsSink InsertSink(
this IDiagnosticsSink sink)
{
var subSink = new DiagnosticSink();
sink.Add(subSink);
return subSink;
}
public static Options Parse(string[] args)
{
var diagnostics = new DiagnosticSink();
var range = new SourceRange("<command line>");
Options result = new Options();
int argCount = args.Length;
int argIdx = 0;
while (argIdx < argCount)
{
var argStr = args[argIdx++];
if (argStr.StartsWith("-"))
{
if (argStr.StartsWith("-o"))
{
var option = argStr.Substring(2);
if( string.IsNullOrWhiteSpace(option) )
{
option = args[argIdx++];
}
result.outputPrefix = option;
}
else
{
diagnostics.Add(
Severity.Error,
range,
"Unknown option '{0}'",
argStr);
}
}
else
{
result.fileNames.Add(argStr);
}
}
int fileCount = result.fileNames.Count;
if (fileCount == 1)
{
if (result.outputPrefix == null)
{
result.outputPrefix = result.fileNames[0];
}
}
else if (fileCount == 0)
{
diagnostics.Add(
Severity.Error,
range,
"No input files given");
}
else
{
if (result.outputPrefix == null)
{
diagnostics.Add(
Severity.Error,
range,
"When multiple input files are given, an output prefix must be selected with -o");
}
}
int errorCount = diagnostics.Flush(System.Console.Error);
if (errorCount != 0)
{
System.Console.Error.WriteLine(
"Usage: sparkc [-o outputPrefix] file.spark file2.spark");
return null;
}
return result;
}