void ProcessMethodActions(MethodDefinition method, Method entry)
{
Context.AddMethodEntry(method, entry);
switch (entry.Action ?? MethodAction.None)
{
case MethodAction.Debug:
Context.LogMessage(MessageImportance.High, $"Debug method: {method}");
Context.Debug();
break;
case MethodAction.Throw:
CodeRewriter.ReplaceWithPlatformNotSupportedException(Context, method);
break;
case MethodAction.ReturnFalse:
CodeRewriter.ReplaceWithReturnFalse(Context, method);
break;
case MethodAction.ReturnTrue:
CodeRewriter.ReplaceWithReturnTrue(Context, method);
break;
case MethodAction.ReturnNull:
CodeRewriter.ReplaceWithReturnNull(Context, method);
break;
}
}
public void Test1()
{
var path = @"../../../ExampleClass.cs";
string code = null;
using (var sr = new StreamReader(path))
code = sr.ReadToEnd();
var codeRewriter = new CodeRewriter(new CodeRewriterConfig()
{
Logger = _output.WriteLine
}, new TemplateExtractor());
var str = codeRewriter.Wrap(code);
_output.WriteLine(str);
using (var sw = new StreamWriter(path.Replace(".cs", ".out.cs.txt")))
sw.Write(str);
Assert.True(false);
}
static void Main(string[] args)
{
if (args == null || args.Length == 0)
{
Console.WriteLine("usage: PeToPe [path]fileName.ext [noStack]");
return;
}
bool noStack = args.Length == 2;
using (var host = new PeReader.DefaultHost()) {
//Read the Metadata Model from the PE file
var module = host.LoadUnitFrom(args[0]) as IModule;
if (module == null || module == Dummy.Module || module == Dummy.Assembly)
{
Console.WriteLine(args[0] + " is not a PE file containing a CLR module or assembly.");
return;
}
//Get a PDB reader if there is a PDB file.
PdbReader /*?*/ pdbReader = null;
string pdbFile = Path.ChangeExtension(module.Location, "pdb");
if (File.Exists(pdbFile))
{
Stream pdbStream = File.OpenRead(pdbFile);
pdbReader = new PdbReader(pdbStream, host);
}
using (pdbReader) {
//Construct a Code Model from the Metadata model via decompilation
var options = DecompilerOptions.None;
if (noStack)
{
options |= DecompilerOptions.Unstack;
}
var decompiledModule = Decompiler.GetCodeModelFromMetadataModel(host, module, pdbReader, options);
ISourceLocationProvider sourceLocationProvider = pdbReader; //The decompiler preserves the Locations from the IOperation values, so the PdbReader still works.
//Recompiling the CodeModel to IL might change the IL offsets, so a new provider is needed.
ILocalScopeProvider localScopeProvider = new Decompiler.LocalScopeProvider(pdbReader);
//Get a mutable copy of the Code Model. The ISourceLocationProvider is needed to provide copied source method bodies with the
//ability to find out where to mark sequence points when compiling themselves back into IL.
//(ISourceMethodBody does not know about the Source Model, so this information must be provided explicitly.)
var copier = new CodeDeepCopier(host, sourceLocationProvider);
var mutableModule = copier.Copy(decompiledModule);
//Traverse the mutable copy. In a real application the traversal will collect information to be used during rewriting.
var traverser = new CodeTraverser()
{
PreorderVisitor = new CodeVisitor()
};
traverser.Traverse(mutableModule);
//Rewrite the mutable Code Model. In a real application CodeRewriter would be a subclass that actually does something.
//(This is why decompiled source method bodies must recompile themselves, rather than just use the IL from which they were decompiled.)
var rewriter = new CodeRewriter(host);
var rewrittenModule = rewriter.Rewrite(mutableModule);
//Write out the Code Model by traversing it as the Metadata Model that it also is.
using (var peStream = File.Create(rewrittenModule.Location + ".pe")) {
if (pdbReader == null)
{
PeWriter.WritePeToStream(rewrittenModule, host, peStream);
}
else
{
using (var pdbWriter = new PdbWriter(rewrittenModule.Location + ".pdb", pdbReader)) {
PeWriter.WritePeToStream(rewrittenModule, host, peStream, sourceLocationProvider, localScopeProvider, pdbWriter);
}
}
}
}
}
}
static void Main(string[] args)
{
if (args == null || args.Length == 0)
{
Console.WriteLine("usage: PeToPe [path]fileName.ext [decompile] [noStack]");
return;
}
bool decompile = args.Length >= 2;
bool noStack = args.Length >= 3;
using (var host = new HostEnvironment()) {
//Read the Metadata Model from the PE file
var module = host.LoadUnitFrom(args[0]) as IModule;
if (module == null || module is Dummy)
{
Console.WriteLine(args[0] + " is not a PE file containing a CLR module or assembly.");
return;
}
//Get a PDB reader if there is a PDB file.
PdbReader /*?*/ pdbReader = null;
string pdbFile = module.DebugInformationLocation;
if (string.IsNullOrEmpty(pdbFile) || !File.Exists(pdbFile))
{
pdbFile = Path.ChangeExtension(module.Location, "pdb");
}
if (File.Exists(pdbFile))
{
using (var pdbStream = File.OpenRead(pdbFile)) {
pdbReader = new PdbReader(pdbStream, host);
}
}
using (pdbReader) {
ISourceLocationProvider sourceLocationProvider = pdbReader;
ILocalScopeProvider localScopeProvider = pdbReader;
if (decompile)
{
//Construct a Code Model from the Metadata model via decompilation
var options = DecompilerOptions.AnonymousDelegates | DecompilerOptions.Iterators | DecompilerOptions.Loops;
if (noStack)
{
options |= DecompilerOptions.Unstack;
}
module = Decompiler.GetCodeModelFromMetadataModel(host, module, pdbReader, options);
if (pdbReader != null)
{
localScopeProvider = new Decompiler.LocalScopeProvider(pdbReader);
}
}
MetadataRewriter rewriter;
MetadataDeepCopier copier;
if (decompile)
{
copier = new CodeDeepCopier(host, pdbReader, pdbReader);
rewriter = new CodeRewriter(host);
}
else
{
copier = new MetadataDeepCopier(host);
rewriter = new MetadataRewriter(host);
}
var mutableModule = copier.Copy(module);
module = rewriter.Rewrite(mutableModule);
//var validator = new MetadataValidator(host);
//List<Microsoft.Cci.ErrorEventArgs> errorEvents = new List<Microsoft.Cci.ErrorEventArgs>();
//host.Errors += (object sender, Microsoft.Cci.ErrorEventArgs e) => errorEvents.Add(e);
//var assem = module as IAssembly;
//validator.Validate(assem);
//if (errorEvents.Count != 0)
//{
// foreach (var e in errorEvents)
// {
// foreach (var err in e.Errors)
// {
// Console.WriteLine(err.Message);
// }
// }
//}
#if DEBUG
var newRoot = Path.GetFileNameWithoutExtension(module.Location) + "1";
var newName = newRoot + Path.GetExtension(module.Location);
using (Stream peStream = File.Create(newName)) {
if (pdbReader == null)
{
PeWriter.WritePeToStream(module, host, peStream);
}
else
{
using (var pdbWriter = new PdbWriter(newRoot + ".pdb", pdbReader, emitTokenSourceInfo: true)) {
PeWriter.WritePeToStream(module, host, peStream, sourceLocationProvider, localScopeProvider, pdbWriter);
}
}
}
#else
using (Stream peStream = File.Create(module.Location)) {
if (pdbReader == null)
{
PeWriter.WritePeToStream(module, host, peStream);
}
else
{
using (var pdbWriter = new PdbWriter(pdbFile, pdbReader, emitTokenSourceInfo: true)) {
PeWriter.WritePeToStream(module, host, peStream, sourceLocationProvider, localScopeProvider, pdbWriter);
}
}
}
#endif
}
}
}