/// <summary>
/// Parse command line options and returns an ILGarbageCollector object on sucess.
/// On error, this method prints help information and returns null
/// </summary>
/// <param name="args">The array of command line arguments</param>
/// <returns>On success: a populated ILGarbageCollector. On failure: null.</returns>
private static ILGarbageCollectorOptions ParseOptions(string[] args) {
var options = new ILGarbageCollectorOptions();
options.Parse(args);
if (options.HelpRequested) {
options.PrintOptions("");
return null;
}
if (options.HasErrors) {
options.PrintErrorsAndExit(Console.Out);
return null;
}
return options;
}
private static ISet <IAssembly> GetRootAssembliesFromOptions(ILGarbageCollectorOptions options, IMetadataReaderHost host)
{
ISet <IAssembly> rootAssemblies = new HashSet <IAssembly>();
foreach (var pathToAssembly in GetRootAssemblyPathsFromOptions(options))
{
var assembly = host.LoadUnitFrom(pathToAssembly) as IAssembly;
if (assembly == null)
{
throw new FileNotFoundException("Couldn't load assembly " + pathToAssembly);
}
rootAssemblies.Add(assembly);
}
return(rootAssemblies);
}
private static MetadataReaderHost GetHostFromOptions(ILGarbageCollectorOptions options)
{
MetadataReaderHost host;
switch (options.profile)
{
case TargetProfile.Phone:
host = new PhoneMetadataHost(GetRootAssemblyParentDirectoriesFromOptions(options));
break;
default:
host = new PeReader.DefaultHost();
break;
}
return(host);
}
/// <summary>
/// Parse command line options and returns an ILGarbageCollector object on sucess.
/// On error, this method prints help information and returns null
/// </summary>
/// <param name="args">The array of command line arguments</param>
/// <returns>On success: a populated ILGarbageCollector. On failure: null.</returns>
private static ILGarbageCollectorOptions ParseOptions(string[] args)
{
var options = new ILGarbageCollectorOptions();
options.Parse(args);
if (options.HelpRequested)
{
options.PrintOptions("");
return(null);
}
if (options.HasErrors)
{
options.PrintErrorsAndExit(Console.Out);
return(null);
}
return(options);
}
private static IEnumerable <IMethodReference> GetEntryPointsFromOptions(ILGarbageCollectorOptions options, WholeProgram wholeProgram)
{
ISet <IEntryPointDetector> entryPointDetectors = new HashSet <IEntryPointDetector>();
bool ignoreMainEntryPoints = false;
if (options.entrypoints != null)
{
entryPointDetectors.Add(new DocCommentFileEntryPointDetector(options.entrypoints));
ignoreMainEntryPoints = true;
}
if (options.entryattributes != null)
{
entryPointDetectors.Add(new AttributeFileEntryPointDetector(options.entryattributes));
}
// If no entrypoints were directly specified are used, we'll just get the entry points
// from the main assemblies.
if (!ignoreMainEntryPoints)
{
entryPointDetectors.Add(new RootAssembliesEntryPointDetector());
}
ISet <IMethodReference> entryPoints = new HashSet <IMethodReference>();
foreach (IEntryPointDetector entryPointDetector in entryPointDetectors)
{
entryPoints.UnionWith(entryPointDetector.GetEntryPoints(wholeProgram));
}
if (entryPoints.Count() == 0)
{
Console.WriteLine("Error: Could not find any entry points.");
System.Environment.Exit(-1);
}
return(entryPoints);
}
private static IEnumerable<IMethodSummarizer> GetReflectionSummarizersFromOptions(ILGarbageCollectorOptions options, WholeProgram wholeProgram) {
ISet<IMethodSummarizer> summarizers = DefaultReflectionSummarizers();
string textSummariesPath = options.summaries;
if (textSummariesPath != null) {
TextFileMethodSummarizer textFileSummarizer = TextFileMethodSummarizer.CreateSummarizerFromPath(textSummariesPath, wholeProgram);
summarizers.Add(textFileSummarizer);
}
return summarizers;
}
private static IEnumerable<IMethodReference> GetEntryPointsFromOptions(ILGarbageCollectorOptions options, WholeProgram wholeProgram) {
ISet<IEntryPointDetector> entryPointDetectors = new HashSet<IEntryPointDetector>();
bool ignoreMainEntryPoints = false;
if (options.entrypoints != null) {
entryPointDetectors.Add(new DocCommentFileEntryPointDetector(options.entrypoints));
ignoreMainEntryPoints = true;
}
if (options.entryattributes != null) {
entryPointDetectors.Add(new AttributeFileEntryPointDetector(options.entryattributes));
}
// If no entrypoints were directly specified are used, we'll just get the entry points
// from the main assemblies.
if (!ignoreMainEntryPoints) {
entryPointDetectors.Add(new RootAssembliesEntryPointDetector());
}
ISet<IMethodReference> entryPoints = new HashSet<IMethodReference>();
foreach (IEntryPointDetector entryPointDetector in entryPointDetectors) {
entryPoints.UnionWith(entryPointDetector.GetEntryPoints(wholeProgram));
}
if (entryPoints.Count() == 0) {
Console.WriteLine("Error: Could not find any entry points.");
System.Environment.Exit(-1);
}
return entryPoints;
}
private static ISet<IAssembly> GetRootAssembliesFromOptions(ILGarbageCollectorOptions options, IMetadataReaderHost host) {
ISet<IAssembly> rootAssemblies = new HashSet<IAssembly>();
foreach (var pathToAssembly in GetRootAssemblyPathsFromOptions(options)) {
var assembly = host.LoadUnitFrom(pathToAssembly) as IAssembly;
if (assembly == null) {
throw new FileNotFoundException("Couldn't load assembly " + pathToAssembly);
}
rootAssemblies.Add(assembly);
}
return rootAssemblies;
}
private static ISet<string> GetRootAssemblyParentDirectoriesFromOptions(ILGarbageCollectorOptions options) {
return new HashSet<string>(GetRootAssemblyPathsFromOptions(options).Select(assemblyPath => Path.GetDirectoryName(assemblyPath)));
}
private static ISet<string> GetRootAssemblyPathsFromOptions(ILGarbageCollectorOptions options) {
return new HashSet<string>(options.GeneralArguments);
}
private static MetadataReaderHost GetHostFromOptions(ILGarbageCollectorOptions options) {
MetadataReaderHost host;
switch (options.profile) {
case TargetProfile.Phone:
host = new PhoneMetadataHost(GetRootAssemblyParentDirectoriesFromOptions(options));
break;
default:
host = new PeReader.DefaultHost();
break;
}
return host;
}
private static IEnumerable <IMethodSummarizer> GetReflectionSummarizersFromOptions(ILGarbageCollectorOptions options, WholeProgram wholeProgram)
{
ISet <IMethodSummarizer> summarizers = DefaultReflectionSummarizers();
string textSummariesPath = options.summaries;
if (textSummariesPath != null)
{
TextFileMethodSummarizer textFileSummarizer = TextFileMethodSummarizer.CreateSummarizerFromPath(textSummariesPath, wholeProgram);
summarizers.Add(textFileSummarizer);
}
return(summarizers);
}
private static ISet <string> GetRootAssemblyParentDirectoriesFromOptions(ILGarbageCollectorOptions options)
{
return(new HashSet <string>(GetRootAssemblyPathsFromOptions(options).Select(assemblyPath => Path.GetDirectoryName(assemblyPath))));
}
private static ISet <string> GetRootAssemblyPathsFromOptions(ILGarbageCollectorOptions options)
{
return(new HashSet <string>(options.GeneralArguments));
}