private static Assembly CompileAssembly(FileReference OutputAssemblyPath, List <FileReference> SourceFileNames, List <string> ReferencedAssembies, List <string> PreprocessorDefines = null, bool TreatWarningsAsErrors = false)
{
CSharpParseOptions ParseOptions = new CSharpParseOptions(
languageVersion: LanguageVersion.Latest,
kind: SourceCodeKind.Regular,
preprocessorSymbols: PreprocessorDefines
);
List <SyntaxTree> SyntaxTrees = new List <SyntaxTree>();
foreach (FileReference SourceFileName in SourceFileNames)
{
SourceText Source = SourceText.From(File.ReadAllText(SourceFileName.FullName));
SyntaxTree Tree = CSharpSyntaxTree.ParseText(Source, ParseOptions, SourceFileName.FullName);
IEnumerable <Diagnostic> Diagnostics = Tree.GetDiagnostics();
if (Diagnostics.Count() > 0)
{
Log.TraceWarning($"Errors generated while parsing '{SourceFileName.FullName}'");
LogDiagnostics(Tree.GetDiagnostics());
return(null);
}
SyntaxTrees.Add(Tree);
}
// Create the output directory if it doesn't exist already
DirectoryInfo DirInfo = new DirectoryInfo(OutputAssemblyPath.Directory.FullName);
if (!DirInfo.Exists)
{
try
{
DirInfo.Create();
}
catch (Exception Ex)
{
throw new BuildException(Ex, "Unable to create directory '{0}' for intermediate assemblies (Exception: {1})", OutputAssemblyPath, Ex.Message);
}
}
List <MetadataReference> MetadataReferences = new List <MetadataReference>();
if (ReferencedAssembies != null)
{
foreach (string Reference in ReferencedAssembies)
{
MetadataReferences.Add(MetadataReference.CreateFromFile(Reference));
}
}
MetadataReferences.Add(MetadataReference.CreateFromFile(typeof(object).Assembly.Location));
MetadataReferences.Add(MetadataReference.CreateFromFile(Assembly.Load("System.Runtime").Location));
MetadataReferences.Add(MetadataReference.CreateFromFile(Assembly.Load("System.Collections").Location));
MetadataReferences.Add(MetadataReference.CreateFromFile(Assembly.Load("System.IO").Location));
MetadataReferences.Add(MetadataReference.CreateFromFile(Assembly.Load("System.IO.FileSystem").Location));
MetadataReferences.Add(MetadataReference.CreateFromFile(Assembly.Load("System.Console").Location));
MetadataReferences.Add(MetadataReference.CreateFromFile(Assembly.Load("System.Runtime.Extensions").Location));
MetadataReferences.Add(MetadataReference.CreateFromFile(Assembly.Load("Microsoft.Win32.Registry").Location));
MetadataReferences.Add(MetadataReference.CreateFromFile(typeof(UnrealBuildTool).Assembly.Location));
MetadataReferences.Add(MetadataReference.CreateFromFile(typeof(FileReference).Assembly.Location));
CSharpCompilationOptions CompilationOptions = new CSharpCompilationOptions(
outputKind: OutputKind.DynamicallyLinkedLibrary,
optimizationLevel: OptimizationLevel.Release,
warningLevel: 4,
assemblyIdentityComparer: DesktopAssemblyIdentityComparer.Default,
reportSuppressedDiagnostics: true
);
CSharpCompilation Compilation = CSharpCompilation.Create(
assemblyName: OutputAssemblyPath.GetFileNameWithoutAnyExtensions(),
syntaxTrees: SyntaxTrees,
references: MetadataReferences,
options: CompilationOptions
);
using (FileStream AssemblyStream = FileReference.Open(OutputAssemblyPath, FileMode.Create))
{
EmitOptions EmitOptions = new EmitOptions(
includePrivateMembers: true
);
EmitResult Result = Compilation.Emit(
peStream: AssemblyStream,
options: EmitOptions);
if (!Result.Success)
{
LogDiagnostics(Result.Diagnostics);
return(null);
}
}
return(Assembly.LoadFile(OutputAssemblyPath.FullName));
}