private CompilationResult CompileCSharp(string fullClassName, IFileInfo file, bool success, List <CompilationMessage> messages, CodeCompileUnit codeCompileUnit)
{
// Generate code text
var code = new StringBuilder();
using (var provider = new CSharpCodeProvider())
{
using (var writer = new StringWriter(code))
{
provider.GenerateCodeFromCompileUnit(codeCompileUnit, writer, new CodeGeneratorOptions());
}
}
// Parse
SyntaxTree tree = SyntaxTree.ParseText/*.ParseCompilationUnit*/ (code.ToString(), "__Generated.cs");
// Create a compilation
CSCompilation comp = CSCompilation.Create(
"Compiled",
new CompilationOptions(OutputKind.DynamicallyLinkedLibrary),
syntaxTrees: new[] { tree },
references: new[]
{
new MetadataFileReference(typeof(object).Assembly.Location),
new MetadataFileReference(typeof(Enumerable).Assembly.Location),
new MetadataFileReference(typeof(PageBase).Assembly.Location)
});
// Emit to a collectable assembly
AssemblyBuilder asm = AssemblyBuilder.DefineDynamicAssembly(
new AssemblyName("Razor_" + Guid.NewGuid().ToString("N")), AssemblyBuilderAccess.RunAndCollect);
ModuleBuilder mod = asm.DefineDynamicModule("RazorCompilation");
ReflectionEmitResult result = comp.Emit(mod);
// Extract the type
Type typ = null;
if (result.Success)
{
typ = asm.GetType(fullClassName);
}
else
{
foreach (var diagnostic in result.Diagnostics)
{
FileLinePositionSpan span = diagnostic.Location.GetLineSpan(true);
LinePosition linePosition = span.StartLinePosition;
messages.Add(new CompilationMessage(
SeverityMap[diagnostic.Info.Severity],
diagnostic.Info.GetMessage(),
new FileLocation(
span.Path,
linePosition.Line,
linePosition.Character,
String.Equals(span.Path, "__Generated.cs", StringComparison.OrdinalIgnoreCase))));
}
}
// Create a compilation result
if (success && result.Success)
{
return(CompilationResult.Successful(code.ToString(), typ, messages));
}
return(CompilationResult.Failed(code.ToString(), messages));
}