/// <summary>
/// Compile C# source code
/// </summary>
/// <param name="sourcePath">path to source</param>
/// <param name="moreReferences">additional library references</param>
/// <returns>compiled assembly</returns>
public static Assembly CompileSource(string sourcePath, MetadataReference[] moreReferences = null)
{
string sourceText = File.ReadAllText(sourcePath);
SyntaxTree syntaxTree = CSharpSyntaxTree.ParseText(
sourceText,
path: sourcePath,
encoding: System.Text.Encoding.UTF8);
string assemblyName = Path.GetRandomFileName();
var assemblyPath = Path.GetDirectoryName(typeof(object).Assembly.Location);
MetadataReference[] references = new MetadataReference[]
{
//--- these can't be created any other way
// https://stackoverflow.com/questions/23907305/roslyn-has-no-reference-to-system-runtime
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "mscorlib.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Core.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Data.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Collections.dll")),
MetadataReference.CreateFromFile(Path.Combine(assemblyPath, "System.Runtime.dll")),
//--- these are referenced by a type we need
//MetadataReference.CreateFromFile(typeof(object).GetTypeInfo().Assembly.Location),
MetadataReference.CreateFromFile(typeof(Object).GetTypeInfo().Assembly.Location),
MetadataReference.CreateFromFile(typeof(System.Linq.Enumerable).GetTypeInfo().Assembly.Location),
MetadataReference.CreateFromFile(typeof(TuringTrader.Simulator.Algorithm).GetTypeInfo().Assembly.Location),
//MetadataReference.CreateFromFile(typeof(TuringTrader.Indicators.IndicatorsBasic).GetTypeInfo().Assembly.Location),
//--- this is what we used with CodeDOM
/*
* cp.ReferencedAssemblies.Add(Assembly.GetExecutingAssembly().Location);
* cp.ReferencedAssemblies.Add("System.dll");
* cp.ReferencedAssemblies.Add("System.Runtime.dll");
* cp.ReferencedAssemblies.Add("System.Collections.dll");
* cp.ReferencedAssemblies.Add("System.Core.dll");
* cp.ReferencedAssemblies.Add("System.Data.dll");
* cp.ReferencedAssemblies.Add("OxyPlot.dll");
* cp.ReferencedAssemblies.Add("OxyPlot.Wpf.dll");
*/
};
if (moreReferences != null)
{
foreach (var r in moreReferences)
{
references = references.Append(r).ToArray();
}
}
CSharpCompilation compilation = CSharpCompilation.Create(
assemblyName,
syntaxTrees: new[] { syntaxTree },
references: references,
options: new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
using (var dll = new MemoryStream())
using (var pdb = new MemoryStream())
{
EmitResult result = compilation.Emit(dll, pdb);
if (!result.Success)
{
IEnumerable <Diagnostic> failures = result.Diagnostics.Where(diagnostic =>
diagnostic.IsWarningAsError ||
diagnostic.Severity == DiagnosticSeverity.Error);
foreach (Diagnostic diagnostic in failures)
{
// find error location and line number
int errorChar = diagnostic.Location.SourceSpan.Start;
string errorSource = sourceText.Substring(0, errorChar);
int lineNumber = errorSource.Split('\n').Length;
Output.WriteLine("Line {0}: {1} - {2}",
lineNumber,
diagnostic.Id,
diagnostic.GetMessage());
}
}
else
{
dll.Seek(0, SeekOrigin.Begin);
pdb.Seek(0, SeekOrigin.Begin);
Assembly assembly = AssemblyLoadContext.Default.LoadFromStream(dll, pdb);
return(assembly);
}
}
return(null);
}
