private void WalkBinary(string binaryPath, MutableSymbol parent, string encodedFrameworkNames)
{
// Add the binary as a reference to resolve symbols in it
MetadataReference reference = MetadataReference.CreateFromFile(binaryPath);
CSharpCompilationOptions compilationOptions = new CSharpCompilationOptions(
outputKind: OutputKind.ConsoleApplication,
reportSuppressedDiagnostics: false);
compilationOptions.SetMetadataImportOptions(MetadataImportOptions.All);
// Create an empty binary to 'host' the reference
CSharpCompilation emptyCompilation = CSharpCompilation.Create("Empty.exe", references: new[] { reference }, options: compilationOptions);
// Get the root of the reference specifically
ISymbol referenceRootSymbol = emptyCompilation.GetAssemblyOrModuleSymbol(reference);
// If this wasn't a managed assembly, don't add anything
if (referenceRootSymbol == null)
{
return;
}
string assemblyName = null;
INamespaceSymbol globalNamespace = null;
if (referenceRootSymbol is IAssemblySymbol)
{
// NOTE: Use the Assembly.Identity.Name specifically as the root to allow VS to identify binaries (potentially) already referenced safely.
assemblyName = ((IAssemblySymbol)referenceRootSymbol).Identity.Name;
globalNamespace = ((IAssemblySymbol)referenceRootSymbol).GlobalNamespace;
}
else if (referenceRootSymbol is IModuleSymbol)
{
assemblyName = Path.GetFileName(binaryPath);
globalNamespace = ((IModuleSymbol)referenceRootSymbol).GlobalNamespace;
}
else
{
// Unable to crawl if we didn't find an assembly or module
Trace.WriteLine(String.Format("ERROR: Unable to crawl binary with root symbol type '{0}'", referenceRootSymbol.GetType().Name));
return;
}
// Walk the binary
MutableSymbol addUnderRoot = parent.AddChild(new MutableSymbol(assemblyName, SymbolType.Assembly));
// Add the target framework [if requested and identifiable]
if (this.IncludeFrameworkTargets)
{
if (!String.IsNullOrEmpty(encodedFrameworkNames))
{
addUnderRoot = addUnderRoot.AddChild(new MutableSymbol(encodedFrameworkNames, SymbolType.FrameworkTarget));
}
}
// PRIVATE ROSLYN: Attempt to build a PDB reader for the binary
using (PdbSymbolProvider pdbProvider = PdbSymbolProvider.TryBuildProvider(binaryPath))
{
PDB = pdbProvider;
WalkNamespace(globalNamespace, addUnderRoot);
// Remove the PdbSymbolProvider
PDB = null;
}
}