public WorkflowCompilerResults Compile(WorkflowCompilerParameters parameters, params string[] files)
{
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (files == null)
{
throw new ArgumentNullException("files");
}
string createdDirectoryName = null;
string createdTempFileName = null;
AppDomainSetup setup = AppDomain.CurrentDomain.SetupInformation;
setup.LoaderOptimization = LoaderOptimization.MultiDomainHost;
AppDomain compilerDomain = AppDomain.CreateDomain("CompilerDomain", null, setup);
bool generateInMemory = false;
string originalOutputAssembly = parameters.OutputAssembly;
try
{
if (parameters.GenerateInMemory)
{
generateInMemory = true;
parameters.GenerateInMemory = false;
if (string.IsNullOrEmpty(parameters.OutputAssembly))
{
// We need to remember the filename generated by Path.GetTempFileName so we can clean it up.
createdTempFileName = Path.GetTempFileName();
parameters.OutputAssembly = createdTempFileName + ".dll";
}
else
{
int tries = 0;
while (true)
{
try
{
tries++;
createdDirectoryName = Path.GetTempPath() + "\\" + Guid.NewGuid();
DirectoryInfo info = Directory.CreateDirectory(createdDirectoryName);
parameters.OutputAssembly = info.FullName + "\\" + parameters.OutputAssembly;
break;
}
catch
{
// If we have tried 10 times without success, give up. Something must be wrong
// with what gets returned by GetTempPath or we have exceeded max_path by appending
// the GUID.
if (tries >= 10)
{
throw;
}
}
}
}
}
WorkflowCompilerInternal compiler = (WorkflowCompilerInternal)compilerDomain.CreateInstanceAndUnwrap(Assembly.GetExecutingAssembly().FullName, typeof(WorkflowCompilerInternal).FullName);
WorkflowCompilerResults results = compiler.Compile(parameters, files);
if (generateInMemory && !results.Errors.HasErrors)
{
results.CompiledAssembly = Assembly.Load(File.ReadAllBytes(results.PathToAssembly));
results.PathToAssembly = null;
}
return(results);
}
finally
{
string outputAssembly = parameters.OutputAssembly;
if (generateInMemory)
{
parameters.GenerateInMemory = true;
parameters.OutputAssembly = originalOutputAssembly;
}
AppDomain.Unload(compilerDomain);
// The temp file must be deleted after the app domain is unloaded, or else it will
// be "busy", causing the delete to throw an access exception.
if (generateInMemory)
{
try
{
// There will always be an outputAssemblyName to delete.
File.Delete(outputAssembly);
// If we created a temp file name with Path.GetTempFileName, we need to delete it here.
if (createdTempFileName != null)
{
File.Delete(createdTempFileName);
}
// If we created a directory, delete it.
if (createdDirectoryName != null)
{
Directory.Delete(createdDirectoryName, true);
}
}
catch
{ }
}
}
}
public WorkflowCompilerResults Compile(WorkflowCompilerParameters parameters, params string[] files)
{
if (parameters == null)
{
throw new ArgumentNullException("parameters");
}
if (files == null)
{
throw new ArgumentNullException("files");
}
AppDomainSetup setup = AppDomain.CurrentDomain.SetupInformation;
setup.LoaderOptimization = LoaderOptimization.MultiDomainHost;
AppDomain compilerDomain = AppDomain.CreateDomain("CompilerDomain", null, setup);
bool generateInMemory = false;
string originalOutputAssembly = parameters.OutputAssembly;
try
{
if (parameters.GenerateInMemory)
{
generateInMemory = true;
parameters.GenerateInMemory = false;
if (string.IsNullOrEmpty(parameters.OutputAssembly))
{
parameters.OutputAssembly = Path.GetTempFileName() + ".dll";
}
else
{
while (true)
{
try
{
DirectoryInfo info = Directory.CreateDirectory(Path.GetTempPath() + "\\" + Guid.NewGuid());
parameters.OutputAssembly = info.FullName + "\\" + parameters.OutputAssembly;
break;
}
catch
{
}
}
}
}
WorkflowCompilerInternal compiler = (WorkflowCompilerInternal)compilerDomain.CreateInstanceAndUnwrap(Assembly.GetExecutingAssembly().FullName, typeof(WorkflowCompilerInternal).FullName);
WorkflowCompilerResults results = compiler.Compile(parameters, files);
if (generateInMemory && !results.Errors.HasErrors)
{
results.CompiledAssembly = Assembly.Load(File.ReadAllBytes(results.PathToAssembly));
results.PathToAssembly = null;
// Delete the file and directory.
try
{
File.Delete(parameters.OutputAssembly);
Directory.Delete(Path.GetDirectoryName(parameters.OutputAssembly), true);
}
catch
{ }
}
return(results);
}
finally
{
string outputAssembly = parameters.OutputAssembly;
if (generateInMemory)
{
parameters.GenerateInMemory = true;
parameters.OutputAssembly = originalOutputAssembly;
}
AppDomain.Unload(compilerDomain);
// The temp file must be deleted after the app domain is unloaded, or else it will
// be "busy", causing the delete to throw an access exception.
if (generateInMemory)
{
try
{
File.Delete(outputAssembly);
Directory.Delete(Path.GetDirectoryName(outputAssembly), true);
}
catch
{ }
}
}
}