/// <summary>
/// Generate code based on inputs and print to output files.
/// </summary>
/// <param name="inputDefs">Paths for source files.</param>
/// <param name="outputPath">Location to store output files.</param>
/// <param name="outputFileBasename">The basename used for all the output files.</param>
public static void GenerateCode(string[] inputDefs, string outputPath, string outputFileBasename)
{
CodeGenCSharpCompiler compiler = new CodeGenCSharpCompiler();
CompilerOutput compilerOutput = compiler.CompileFromFiles(inputDefs, outputPath);
CodeCommentsReader codeComments = compilerOutput.CodeComments;
Compilation compilation = compilerOutput.Compilation;
Assembly sourceTypesAssembly = compilerOutput.Assembly;
// Store C# compiler, used later to compute codegen type hash.
//
TypeMetadataMapper.Compilation = compilerOutput.Compilation;
MultiCodeWriter codeWriter = GetMainCodeWriter(sourceTypesAssembly);
var codeGenErrors = new List <CodegenError>();
bool result = GenerateTypes(codeWriter, compilation, codeComments, codeGenErrors, sourceTypesAssembly);
if (!result || codeGenErrors.Any())
{
PrintCodeGenErrorsAndExit(codeGenErrors);
}
if (!Directory.Exists(outputPath))
{
Directory.CreateDirectory(outputPath);
}
WriteOutputToFile(codeWriter, outputFileBasename, outputPath);
}
/// <summary>
/// Initializes a new instance of the <see cref="CompilerOutput"/> struct.
/// </summary>
/// <param name="assembly"></param>
/// <param name="emitResult"></param>
/// <param name="codeComments"></param>
/// <param name="compilation"></param>
public CompilerOutput(Assembly assembly, EmitResult emitResult, CodeCommentsReader codeComments, CSharpCompilation compilation)
{
Assembly = assembly;
EmitResult = emitResult;
CodeComments = codeComments;
Compilation = compilation;
}
private static bool GenerateTypes(CodeWriter codeWriter, Compilation compilation, CodeCommentsReader codeComments, List <CodegenError> codeGenErrors, Assembly sourceTypesAssembly)
{
bool result = true;
codeWriter.WriteBeginFile();
var typeCodeGenerator = new TypeCodeGenerator
{
CodeWriter = codeWriter,
SourceCompilation = compilation,
SourceCodeComments = codeComments,
CodeGenErrors = codeGenErrors,
};
// CodeGen all the Mlos types.
//
foreach (Type sourceType in sourceTypesAssembly.GetTypes().Where(type => type.IsCodegenType()))
{
result &= typeCodeGenerator.GenerateType(sourceType);
}
codeWriter.WriteEndFile();
return(result);
}
/// <summary>
/// Compiles multiple CSharp files into assembly.
/// </summary>
/// <param name="inputFiles"></param>
/// <param name="outputPath"></param>
/// <remarks>
/// The method also returns a documentation created from the source code.
/// </remarks>
/// <returns></returns>
internal CompilerOutput CompileFromFiles(string[] inputFiles, string outputPath)
{
string resultAssemblyDocFullPath = Path.Combine(outputPath, "SettingsRegistry.xml");
Directory.CreateDirectory(Path.GetDirectoryName(resultAssemblyDocFullPath));
string assemblyName = Path.GetFileNameWithoutExtension(outputPath);
var syntaxTrees = inputFiles.Select(inputFile =>
{
string sourceContent = File.ReadAllText(inputFile);
return(CSharpSyntaxTree.ParseText(text: sourceContent, path: inputFile, encoding: System.Text.Encoding.ASCII));
});
var refPaths = new[]
{
typeof(object).GetTypeInfo().Assembly.Location,
Assembly.GetAssembly(typeof(Attributes.BaseCodegenAttribute)).Location,
Assembly.GetExecutingAssembly().Location,
Path.Combine(Path.GetDirectoryName(typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly.Location), "System.Runtime.dll"),
};
MetadataReference[] references = refPaths.Select(r => MetadataReference.CreateFromFile(r)).ToArray();
// Compile as dynamic library and disable all warnings.
//
var compilationOptions = new CSharpCompilationOptions(
OutputKind.DynamicallyLinkedLibrary,
warningLevel: 0,
optimizationLevel: OptimizationLevel.Debug,
allowUnsafe: true);
CSharpCompilation compilation = CSharpCompilation.Create(
assemblyName: assemblyName,
syntaxTrees: syntaxTrees,
references: references,
options: compilationOptions);
Assembly outputAssembly;
using (var peStream = new MemoryStream())
using (var pdbStream = new MemoryStream())
using (var xmlDocStream = new MemoryStream())
{
var emitOptions = new EmitOptions(
debugInformationFormat: DebugInformationFormat.PortablePdb,
includePrivateMembers: true);
EmitResult emitResults = compilation.Emit(
peStream: peStream,
pdbStream: pdbStream,
xmlDocumentationStream: xmlDocStream,
options: emitOptions);
// Rewind streams.
//
peStream.Seek(0, SeekOrigin.Begin);
pdbStream.Seek(0, SeekOrigin.Begin);
xmlDocStream.Seek(0, SeekOrigin.Begin);
if (!emitResults.Success)
{
emitResults.Diagnostics.ToList().ForEach(
error =>
{
Console.Error.WriteLine($"Location:{error.Location}");
Console.Error.WriteLine($" Error: {error}");
});
Environment.Exit(1);
}
outputAssembly = AssemblyLoadContext.Default.LoadFromStream(peStream, pdbStream);
var codeComments = new CodeCommentsReader();
codeComments.LoadFromAssembly(xmlDocStream);
return(new CompilerOutput(outputAssembly, emitResults, codeComments, compilation));
}
}
