/// <summary>
/// Builds a delegate that will execute just this scripts code.
/// </summary>
public Func <object[], object> Build(
Script script,
DiagnosticBag diagnostics,
CancellationToken cancellationToken)
{
var compilation = script.GetCompilation();
using (var peStream = new MemoryStream())
{
var emitResult = compilation.Emit(
peStream: peStream,
pdbStream: null,
xmlDocumentationStream: null,
win32Resources: null,
manifestResources: null,
options: EmitOptions.Default,
cancellationToken: cancellationToken);
diagnostics.AddRange(emitResult.Diagnostics);
if (!emitResult.Success)
{
return(null);
}
// let the loader know where to find assemblies:
foreach (var referencedAssembly in compilation.GetBoundReferenceManager().GetReferencedAssemblies())
{
var path = (referencedAssembly.Key as PortableExecutableReference)?.FilePath;
if (path != null)
{
// TODO: Should the #r resolver return contract metadata and runtime assembly path -
// Contract assembly used in the compiler, RT assembly path here.
_assemblyLoader.RegisterDependency(referencedAssembly.Value.Identity, path);
}
}
peStream.Position = 0;
var assembly = _assemblyLoader.Load(peStream, pdbStream: null);
// TODO: GetEntryPoint currently doesn't work for scripts/submissions.
// See https://github.com/dotnet/roslyn/issues/3719.
// var entryPoint = compilation.GetEntryPoint(cancellationToken);
var entryPointMethod = GetEntryPointRuntimeMethod(emitResult.EntryPointOpt, assembly, cancellationToken);
return(entryPointMethod.CreateDelegate <Func <object[], object> >());
}
}
/// <summary>
/// Builds a delegate that will execute just this scripts code.
/// </summary>
private Func <object[], Task <T> > Build <T>(
Compilation compilation,
DiagnosticBag diagnostics,
CancellationToken cancellationToken)
{
var entryPoint = compilation.GetEntryPoint(cancellationToken);
using (var peStream = new MemoryStream())
{
var emitResult = compilation.Emit(
peStream: peStream,
pdbStream: null,
xmlDocumentationStream: null,
win32Resources: null,
manifestResources: null,
options: EmitOptions.Default,
cancellationToken: cancellationToken);
diagnostics.AddRange(emitResult.Diagnostics);
if (!emitResult.Success)
{
return(null);
}
// let the loader know where to find assemblies:
foreach (var referencedAssembly in compilation.GetBoundReferenceManager().GetReferencedAssemblies())
{
var path = (referencedAssembly.Key as PortableExecutableReference)?.FilePath;
if (path != null)
{
// TODO: Should the #r resolver return contract metadata and runtime assembly path -
// Contract assembly used in the compiler, RT assembly path here.
_assemblyLoader.RegisterDependency(referencedAssembly.Value.Identity, path);
}
}
peStream.Position = 0;
var assembly = _assemblyLoader.Load(peStream, pdbStream: null);
var runtimeEntryPoint = GetEntryPointRuntimeMethod(entryPoint, assembly, cancellationToken);
return(runtimeEntryPoint.CreateDelegate <Func <object[], Task <T> > >());
}
}