protected virtual CompiledViewDescriptor CompileAndEmit(string relativePath)
{
var projectItem = _projectEngine.FileSystem.GetItem(relativePath, fileKind: null);
var codeDocument = _projectEngine.Process(projectItem);
var cSharpDocument = codeDocument.GetCSharpDocument();
if (cSharpDocument.Diagnostics.Count > 0)
{
throw CustomCompilationFailedExceptionFactory.Create(
codeDocument,
cSharpDocument.Diagnostics);
}
var assembly = CompileAndEmit(codeDocument, cSharpDocument.GeneratedCode);
// Anything we compile from source will use Razor 2.1 and so should have the new metadata.
var loader = new RazorCompiledItemLoader();
var item = loader.LoadItems(assembly).SingleOrDefault();
return(new CompiledViewDescriptor(item));
}
internal Assembly CompileAndEmit(RazorCodeDocument codeDocument, string generatedCode)
{
_logger.GeneratedCodeToAssemblyCompilationStart(codeDocument.Source.FilePath);
var startTimestamp = _logger.IsEnabled(LogLevel.Debug) ? Stopwatch.GetTimestamp() : 0;
var assemblyName = Path.GetRandomFileName();
var compilation = CreateCompilation(generatedCode, assemblyName);
var emitOptions = _csharpCompiler.EmitOptions;
var emitPdbFile = _csharpCompiler.EmitPdb && emitOptions.DebugInformationFormat != DebugInformationFormat.Embedded;
using (var assemblyStream = new MemoryStream())
using (var pdbStream = emitPdbFile ? new MemoryStream() : null)
{
var result = compilation.Emit(
assemblyStream,
pdbStream,
options: emitOptions);
if (!result.Success)
{
throw CustomCompilationFailedExceptionFactory.Create(
codeDocument,
generatedCode,
assemblyName,
result.Diagnostics);
}
assemblyStream.Seek(0, SeekOrigin.Begin);
pdbStream?.Seek(0, SeekOrigin.Begin);
var assembly = Assembly.Load(assemblyStream.ToArray(), pdbStream?.ToArray());
_logger.GeneratedCodeToAssemblyCompilationEnd(codeDocument.Source.FilePath, startTimestamp);
return(assembly);
}
}