public override void DecompileMethod(MethodDef method, ITextOutput output, DecompilationOptions options)
{
WriteComment(output, "Method: ");
output.WriteDefinition(IdentifierEscaper.Escape(method.FullName), method, TextTokenType.Comment, false);
output.WriteLine();
if (!method.HasBody) {
return;
}
StartKeywordBlock(output, ".body", method);
ILAstBuilder astBuilder = new ILAstBuilder();
ILBlock ilMethod = new ILBlock();
DecompilerContext context = new DecompilerContext(method.Module) { CurrentType = method.DeclaringType, CurrentMethod = method };
ilMethod.Body = astBuilder.Build(method, inlineVariables, context);
if (abortBeforeStep != null) {
new ILAstOptimizer().Optimize(context, ilMethod, abortBeforeStep.Value);
}
if (context.CurrentMethodIsAsync) {
output.Write("async", TextTokenType.Keyword);
output.Write('/', TextTokenType.Operator);
output.WriteLine("await", TextTokenType.Keyword);
}
var allVariables = ilMethod.GetSelfAndChildrenRecursive<ILExpression>().Select(e => e.Operand as ILVariable)
.Where(v => v != null && !v.IsParameter).Distinct();
foreach (ILVariable v in allVariables) {
output.WriteDefinition(IdentifierEscaper.Escape(v.Name), v, v.IsParameter ? TextTokenType.Parameter : TextTokenType.Local);
if (v.Type != null) {
output.WriteSpace();
output.Write(':', TextTokenType.Operator);
output.WriteSpace();
if (v.IsPinned) {
output.Write("pinned", TextTokenType.Keyword);
output.WriteSpace();
}
v.Type.WriteTo(output, ILNameSyntax.ShortTypeName);
}
if (v.IsGenerated) {
output.WriteSpace();
output.Write('[', TextTokenType.Operator);
output.Write("generated", TextTokenType.Keyword);
output.Write(']', TextTokenType.Operator);
}
output.WriteLine();
}
var memberMapping = new MemberMapping(method);
foreach (ILNode node in ilMethod.Body) {
node.WriteTo(output, memberMapping);
if (!node.WritesNewLine)
output.WriteLine();
}
output.AddDebugSymbols(memberMapping);
EndKeywordBlock(output);
}
public override void DecompileMethod(MethodDefinition method, ITextOutput output, DecompilationOptions options)
{
if (!method.HasBody) {
return;
}
ILAstBuilder astBuilder = new ILAstBuilder();
ILBlock ilMethod = new ILBlock();
ilMethod.Body = astBuilder.Build(method, inlineVariables);
if (abortBeforeStep != null) {
DecompilerContext context = new DecompilerContext(method.Module) { CurrentType = method.DeclaringType, CurrentMethod = method };
new ILAstOptimizer().Optimize(context, ilMethod, abortBeforeStep.Value);
}
var allVariables = ilMethod.GetSelfAndChildrenRecursive<ILExpression>().Select(e => e.Operand as ILVariable)
.Where(v => v != null && !v.IsParameter).Distinct();
foreach (ILVariable v in allVariables) {
output.WriteDefinition(v.Name, v);
if (v.Type != null) {
output.Write(" : ");
if (v.IsPinned)
output.Write("pinned ");
v.Type.WriteTo(output, ILNameSyntax.ShortTypeName);
}
output.WriteLine();
}
output.WriteLine();
foreach (ILNode node in ilMethod.Body) {
node.WriteTo(output);
output.WriteLine();
}
}
public static void WriteTo(this Instruction instruction, ITextOutput writer, Func<OpCode, string> getOpCodeDocumentation)
{
writer.WriteDefinition(DnlibExtensions.OffsetToString(instruction.GetOffset()), instruction, TextTokenType.Label, false);
writer.Write(':', TextTokenType.Operator);
writer.WriteSpace();
writer.WriteReference(instruction.OpCode.Name, instruction.OpCode, TextTokenType.OpCode);
if (instruction.Operand != null) {
writer.WriteSpace();
if (instruction.OpCode == OpCodes.Ldtoken) {
var member = instruction.Operand as IMemberRef;
if (member != null && member.IsMethod) {
writer.Write("method", TextTokenType.Keyword);
writer.WriteSpace();
}
else if (member != null && member.IsField) {
writer.Write("field", TextTokenType.Keyword);
writer.WriteSpace();
}
}
WriteOperand(writer, instruction.Operand);
}
if (getOpCodeDocumentation != null) {
var doc = getOpCodeDocumentation(instruction.OpCode);
if (doc != null) {
writer.Write("\t", TextTokenType.Text);
writer.Write("// " + doc, TextTokenType.Comment);
}
}
}
public static void WriteTo(this Instruction instruction, ITextOutput writer)
{
writer.WriteDefinition(CecilExtensions.OffsetToString(instruction.Offset), instruction);
writer.Write(": ");
writer.WriteReference(instruction.OpCode.Name, instruction.OpCode);
if(null != instruction.Operand) {
writer.Write(' ');
WriteOperand(writer, instruction.Operand);
}
}
public static void WriteTo(this Instruction instruction, ITextOutput writer)
{
writer.WriteDefinition(CecilExtensions.OffsetToString(instruction.Offset), instruction);
writer.Write(": ");
writer.WriteReference(instruction.OpCode.Name, instruction.OpCode);
if (instruction.Operand != null) {
writer.Write(' ');
if (instruction.OpCode == OpCodes.Ldtoken) {
if (instruction.Operand is MethodReference)
writer.Write("method ");
else if (instruction.Operand is FieldReference)
writer.Write("field ");
}
WriteOperand(writer, instruction.Operand);
}
}
public static void WriteTo(this Instruction instruction, MethodDef method, CilBody body, ITextOutput writer)
{
writer.WriteDefinition(dnlibExtensions.OffsetToString(instruction.Offset), instruction, true);
writer.Write(": ");
writer.WriteReference(instruction.OpCode.Name, instruction.OpCode, true);
if (instruction.Operand != null) {
writer.Write(' ');
if (instruction.OpCode == OpCodes.Ldtoken) {
if (dnlibExtensions.IsMethod(instruction.Operand))
writer.WriteKeyword("method ");
else if (dnlibExtensions.IsField(instruction.Operand))
writer.WriteKeyword("field ");
}
WriteOperand(writer, instruction.Operand);
}
else if (method != null && body != null) {
switch (instruction.OpCode.Code) {
case Code.Ldloc_0:
case Code.Ldloc_1:
case Code.Ldloc_2:
case Code.Ldloc_3:
writer.WriteComment(" // ");
var local = instruction.GetLocal(body.Variables);
if (local != null)
WriteOperand(writer, local);
break;
case Code.Ldarg_0:
case Code.Ldarg_1:
case Code.Ldarg_2:
case Code.Ldarg_3:
writer.WriteComment(" // ");
var arg = instruction.GetParameter(method.Parameters);
if (arg != null)
WriteOperand(writer, arg);
break;
}
}
}
public override void WriteShort(ITextOutput output, ILanguage language, bool showOffset)
{
var smartOutput = output as ISmartTextOutput;
if (smartOutput != null)
{
language.WriteCommentBegin(output, true);
output.WriteOffsetComment(this, showOffset);
smartOutput.AddUIElement(() => {
return(new System.Windows.Controls.Image {
Source = imageSource,
});
});
output.Write(" = ", TextTokenKind.Comment);
const string LTR = "\u200E";
output.WriteDefinition(NameUtils.CleanName(Name) + LTR, this, TextTokenKind.Comment);
language.WriteCommentEnd(output, true);
output.WriteLine();
return;
}
base.WriteShort(output, language, showOffset);
}
public virtual void Decompile(Language language, ITextOutput output)
{
language.WriteComment(output, string.Empty);
output.WriteOffsetComment(this);
output.WriteDefinition(UIUtils.CleanUpName(Name), this, TextTokenType.Comment);
string extra = null;
if (r.ResourceType == ResourceType.AssemblyLinked)
{
extra = ((AssemblyLinkedResource)r).Assembly.FullName;
}
else if (r.ResourceType == ResourceType.Linked)
{
var file = ((LinkedResource)r).File;
extra = string.Format("{0}, {1}, {2}", file.Name, file.ContainsNoMetaData ? "ContainsNoMetaData" : "ContainsMetaData", NumberVMUtils.ByteArrayToString(file.HashValue));
}
else if (r.ResourceType == ResourceType.Embedded)
{
extra = string.Format("{0} bytes", ((EmbeddedResource)r).Data.Length);
}
output.Write(string.Format(" ({0}{1}, {2})", extra == null ? string.Empty : string.Format("{0}, ", extra), r.ResourceType, r.Attributes), TextTokenType.Comment);
output.WriteLine();
}
public virtual void Decompile(Language language, ITextOutput output)
{
language.WriteComment(output, string.Empty);
if (Options.DecompilerSettingsPanel.CurrentDecompilerSettings.ShowTokenAndRvaComments) {
long fo = FileOffset;
if (fo != 0)
output.Write(string.Format("0x{0:X8}: ", fo), TextTokenType.Comment);
}
output.WriteDefinition(UIUtils.CleanUpName(Name), this, TextTokenType.Comment);
string extra = null;
if (r.ResourceType == ResourceType.AssemblyLinked)
extra = ((AssemblyLinkedResource)r).Assembly.FullName;
else if (r.ResourceType == ResourceType.Linked) {
var file = ((LinkedResource)r).File;
extra = string.Format("{0}, {1}, {2}", file.Name, file.ContainsNoMetaData ? "ContainsNoMetaData" : "ContainsMetaData", AsmEditor.NumberVMUtils.ByteArrayToString(file.HashValue));
}
output.Write(string.Format(" ({0}{1}, {2})", extra == null ? string.Empty : string.Format("{0}, ", extra), r.ResourceType, r.Attributes), TextTokenType.Comment);
output.WriteLine();
}
public void Disassemble(MethodBody body)
{
// start writing IL code
var method = body.Method;
_output.WriteLine("// Method begins at RVA 0x{0:x4}", method.RVA);
_output.WriteLine("// Code size {0} (0x{0:x})", body.CodeSize);
_output.WriteLine(".maxstack {0}", body.MaxStackSize);
if (method.DeclaringType.Module.Assembly != null && method.DeclaringType.Module.Assembly.EntryPoint == method)
{
_output.WriteLine(".entrypoint");
}
if (method.Body.HasVariables)
{
_output.Write(".locals ");
if (method.Body.InitLocals)
{
_output.Write("init ");
}
_output.WriteLine("(");
_output.Indent();
foreach (var v in method.Body.Variables)
{
_output.WriteDefinition("[" + v.Index + "] ", v);
v.VariableType.WriteTo(_output);
if (!string.IsNullOrEmpty(v.ToString()))
{
_output.Write(' ');
_output.Write(DisassemblerHelpers.Escape(v.ToString()));
}
if (v.Index + 1 < method.Body.Variables.Count)
{
_output.Write(',');
}
_output.WriteLine();
}
_output.Unindent();
_output.WriteLine(")");
}
_output.WriteLine();
if (_detectControlStructure && body.Instructions.Count > 0)
{
var inst = body.Instructions[0];
var branchTargets = GetBranchTargets(body.Instructions);
WriteStructureBody(new ILStructure(body), branchTargets, ref inst);
}
else
{
foreach (var inst in method.Body.Instructions)
{
inst.WriteTo(_output);
_output.WriteLine();
}
if (method.Body.HasExceptionHandlers)
{
_output.WriteLine();
foreach (var eh in method.Body.ExceptionHandlers)
{
eh.WriteTo(_output);
_output.WriteLine();
}
}
}
}
public virtual void WriteShort(ITextOutput output, ILanguage language, bool showOffset)
{
language.WriteCommentBegin(output, true);
output.WriteOffsetComment(this, showOffset);
output.WriteDefinition(NameUtils.CleanName(Name), this, TextTokenKind.Comment);
string extra = null;
switch (resource.ResourceType) {
case ResourceType.AssemblyLinked:
extra = ((AssemblyLinkedResource)resource).Assembly.FullName;
break;
case ResourceType.Linked:
var file = ((LinkedResource)resource).File;
extra = string.Format("{0}, {1}, {2}", file.Name, file.ContainsNoMetaData ? "ContainsNoMetaData" : "ContainsMetaData", NumberVMUtils.ByteArrayToString(file.HashValue));
break;
case ResourceType.Embedded:
extra = string.Format(dnSpy_Shared_Resources.NumberOfBytes, ((EmbeddedResource)resource).Data.Length);
break;
}
output.Write(string.Format(" ({0}{1}, {2})", extra == null ? string.Empty : string.Format("{0}, ", extra), resource.ResourceType, resource.Attributes), TextTokenKind.Comment);
language.WriteCommentEnd(output, true);
output.WriteLine();
}
public virtual void Decompile(Language language, ITextOutput output)
{
language.WriteComment(output, string.Empty);
if (Options.DecompilerSettingsPanel.CurrentDecompilerSettings.ShowTokenAndRvaComments) {
long fo = FileOffset;
if (fo != 0)
output.Write(string.Format("0x{0:X8}: ", fo), TextTokenType.Comment);
}
output.WriteDefinition(UIUtils.CleanUpName(Name), this, TextTokenType.Comment);
output.Write(string.Format(" = {0}", ValueString), TextTokenType.Comment);
output.WriteLine();
}
public override void Decompile(FieldDef field, ITextOutput output, DecompilationContext ctx)
{
output.WriteReference(IdentifierEscaper.Escape(field.FieldType.GetFullName()), field.FieldType.ToTypeDefOrRef(), TextTokenKindUtils.GetTextTokenType(field.FieldType));
output.WriteSpace();
output.WriteDefinition(IdentifierEscaper.Escape(field.Name), field, TextTokenKindUtils.GetTextTokenType(field), false);
var c = field.Constant;
if (c != null)
{
output.WriteSpace();
output.Write("=", TextTokenKind.Operator);
output.WriteSpace();
if (c.Value == null)
{
output.Write("null", TextTokenKind.Keyword);
}
else
{
switch (c.Type)
{
case ElementType.Boolean:
if (c.Value is bool)
{
output.Write((bool)c.Value ? "true" : "false", TextTokenKind.Keyword);
}
else
{
goto default;
}
break;
case ElementType.Char:
output.Write(string.Format("'{0}'", c.Value), TextTokenKind.Char);
break;
case ElementType.I1:
case ElementType.U1:
case ElementType.I2:
case ElementType.U2:
case ElementType.I4:
case ElementType.U4:
case ElementType.I8:
case ElementType.U8:
case ElementType.R4:
case ElementType.R8:
case ElementType.I:
case ElementType.U:
output.Write(string.Format("{0}", c.Value), TextTokenKind.Number);
break;
case ElementType.String:
output.Write(string.Format("{0}", c.Value), TextTokenKind.String);
break;
default:
output.Write(string.Format("{0}", c.Value), TextTokenKind.Text);
break;
}
}
}
}
public void Disassemble(MethodDef method, MemberMapping debugSymbols)
{
// start writing IL code
CilBody body = method.Body;
uint codeSize = (uint)body.GetCodeSize();
uint rva = (uint)method.RVA;
long offset = method.Module.ToFileOffset(rva);
if (options.ShowTokenAndRvaComments)
{
output.WriteLine(string.Format("// Header Size: {0} {1}", method.Body.HeaderSize, method.Body.HeaderSize == 1 ? "byte" : "bytes"), TextTokenType.Comment);
output.WriteLine(string.Format("// Code Size: {0} (0x{0:X}) {1}", codeSize, codeSize == 1 ? "byte" : "bytes"), TextTokenType.Comment);
if (body.LocalVarSigTok != 0)
{
output.WriteLine(string.Format("// LocalVarSig Token: 0x{0:X8} RID: {1}", body.LocalVarSigTok, body.LocalVarSigTok & 0xFFFFFF), TextTokenType.Comment);
}
}
output.Write(".maxstack", TextTokenType.ILDirective);
output.WriteSpace();
output.WriteLine(string.Format("{0}", body.MaxStack), TextTokenType.Number);
if (method.DeclaringType.Module.EntryPoint == method)
{
output.WriteLine(".entrypoint", TextTokenType.ILDirective);
}
if (method.Body.HasVariables)
{
output.Write(".locals", TextTokenType.ILDirective);
output.WriteSpace();
if (method.Body.InitLocals)
{
output.Write("init", TextTokenType.Keyword);
output.WriteSpace();
}
output.WriteLine("(", TextTokenType.Operator);
output.Indent();
foreach (var v in method.Body.Variables)
{
output.Write('[', TextTokenType.Operator);
output.WriteDefinition(v.Index.ToString(), v, TextTokenType.Number);
output.Write(']', TextTokenType.Operator);
output.WriteSpace();
v.Type.WriteTo(output);
if (!string.IsNullOrEmpty(v.Name))
{
output.WriteSpace();
output.Write(DisassemblerHelpers.Escape(v.Name), TextTokenType.Local);
}
if (v.Index + 1 < method.Body.Variables.Count)
{
output.Write(',', TextTokenType.Operator);
}
output.WriteLine();
}
output.Unindent();
output.WriteLine(")", TextTokenType.Operator);
}
output.WriteLine();
uint baseRva = rva == 0 ? 0 : rva + method.Body.HeaderSize;
long baseOffs = baseRva == 0 ? 0 : method.Module.ToFileOffset(baseRva);
using (var byteReader = !options.ShowILBytes || options.CreateInstructionBytesReader == null ? null : options.CreateInstructionBytesReader(method)) {
if (detectControlStructure && body.Instructions.Count > 0)
{
int index = 0;
HashSet <uint> branchTargets = GetBranchTargets(body.Instructions);
WriteStructureBody(body, new ILStructure(body), branchTargets, ref index, debugSymbols, method.Body.GetCodeSize(), baseRva, baseOffs, byteReader, method);
}
else
{
var instructions = method.Body.Instructions;
for (int i = 0; i < instructions.Count; i++)
{
var inst = instructions[i];
var startLocation = output.Location;
inst.WriteTo(output, options, baseRva, baseOffs, byteReader, method);
if (debugSymbols != null)
{
// add IL code mappings - used in debugger
var next = i + 1 < instructions.Count ? instructions[i + 1] : null;
debugSymbols.MemberCodeMappings.Add(
new SourceCodeMapping()
{
StartLocation = output.Location,
EndLocation = output.Location,
ILInstructionOffset = new ILRange(inst.Offset, next == null ? (uint)method.Body.GetCodeSize() : next.Offset),
MemberMapping = debugSymbols
});
}
output.WriteLine();
}
if (method.Body.HasExceptionHandlers)
{
output.WriteLine();
foreach (var eh in method.Body.ExceptionHandlers)
{
eh.WriteTo(output, method);
output.WriteLine();
}
}
}
}
}
public static void WriteTo(this Instruction instruction, ITextOutput writer, DisassemblerOptions options, uint baseRva, long baseOffs, IInstructionBytesReader byteReader, MethodDef method)
{
if (options != null && (options.ShowTokenAndRvaComments || options.ShowILBytes)) {
writer.Write("/* ", TextTokenType.Comment);
bool needSpace = false;
if (options.ShowTokenAndRvaComments) {
ulong fileOffset = (ulong)baseOffs + instruction.Offset;
writer.WriteReference(string.Format("0x{0:X8}", fileOffset), new AddressReference(options.OwnerModule == null ? null : options.OwnerModule.Location, false, fileOffset, (ulong)instruction.GetSize()), TextTokenType.Comment, false);
needSpace = true;
}
if (options.ShowILBytes) {
if (needSpace)
writer.Write(' ', TextTokenType.Comment);
if (byteReader == null)
writer.Write("??", TextTokenType.Comment);
else {
int size = instruction.GetSize();
for (int i = 0; i < size; i++) {
var b = byteReader.ReadByte();
if (b < 0)
writer.Write("??", TextTokenType.Comment);
else
writer.Write(string.Format("{0:X2}", b), TextTokenType.Comment);
}
// Most instructions should be at most 5 bytes in length, but use 6 since
// ldftn/ldvirtftn are 6 bytes long. The longest instructions are those with
// 8 byte operands, ldc.i8 and ldc.r8: 9 bytes.
const int MIN_BYTES = 6;
for (int i = size; i < MIN_BYTES; i++)
writer.Write(" ", TextTokenType.Comment);
}
}
writer.Write(" */", TextTokenType.Comment);
writer.WriteSpace();
}
writer.WriteDefinition(DnlibExtensions.OffsetToString(instruction.GetOffset()), new InstructionReference(method, instruction), TextTokenType.Label, false);
writer.Write(':', TextTokenType.Operator);
writer.WriteSpace();
writer.WriteReference(instruction.OpCode.Name, instruction.OpCode, TextTokenType.OpCode);
if (instruction.Operand != null) {
int count = OPERAND_ALIGNMENT - instruction.OpCode.Name.Length;
if (count <= 0)
count = 1;
writer.Write(spaces[count], TextTokenType.Text);
if (instruction.OpCode == OpCodes.Ldtoken) {
var member = instruction.Operand as IMemberRef;
if (member != null && member.IsMethod) {
writer.Write("method", TextTokenType.Keyword);
writer.WriteSpace();
}
else if (member != null && member.IsField) {
writer.Write("field", TextTokenType.Keyword);
writer.WriteSpace();
}
}
WriteOperand(writer, instruction.Operand, method);
}
if (options != null && options.GetOpCodeDocumentation != null) {
var doc = options.GetOpCodeDocumentation(instruction.OpCode);
if (doc != null) {
writer.Write("\t", TextTokenType.Text);
writer.Write("// " + doc, TextTokenType.Comment);
}
}
}
public override void WriteIdentifier(Identifier identifier)
{
if (identifier.IsVerbatim || CSharpOutputVisitor.IsKeyword(identifier.Name, identifier))
{
output.Write('@');
}
var definition = GetCurrentDefinition();
if (definition != null)
{
output.WriteDefinition(identifier.Name, definition, false);
return;
}
var member = GetCurrentMemberReference();
if (member != null)
{
MemberReference cecil;
if (member is IType type)
{
cecil = typeSystem.GetCecil(type.GetDefinition());
}
else if (member is IMember)
{
cecil = typeSystem.GetCecil((IMember)member);
}
else
{
cecil = null;
}
if (cecil != null)
{
output.WriteReference(identifier.Name, cecil);
return;
}
}
definition = GetCurrentLocalDefinition();
if (definition != null)
{
output.WriteDefinition(identifier.Name, definition);
return;
}
var memberRef = GetCurrentLocalReference();
if (memberRef != null)
{
output.WriteReference(identifier.Name, memberRef, true);
return;
}
if (firstUsingDeclaration)
{
output.MarkFoldStart(defaultCollapsed: true);
firstUsingDeclaration = false;
}
output.Write(identifier.Name);
}
public virtual void Decompile(Language language, ITextOutput output) {
language.WriteComment(output, string.Empty);
output.WriteOffsetComment(this);
output.WriteDefinition(UIUtils.CleanUpName(Name), this, TextTokenType.Comment);
string extra = null;
if (r.ResourceType == ResourceType.AssemblyLinked)
extra = ((AssemblyLinkedResource)r).Assembly.FullName;
else if (r.ResourceType == ResourceType.Linked) {
var file = ((LinkedResource)r).File;
extra = string.Format("{0}, {1}, {2}", file.Name, file.ContainsNoMetaData ? "ContainsNoMetaData" : "ContainsMetaData", NumberVMUtils.ByteArrayToString(file.HashValue));
}
else if (r.ResourceType == ResourceType.Embedded)
extra = string.Format("{0} bytes", ((EmbeddedResource)r).Data.Length);
output.Write(string.Format(" ({0}{1}, {2})", extra == null ? string.Empty : string.Format("{0}, ", extra), r.ResourceType, r.Attributes), TextTokenType.Comment);
output.WriteLine();
}
public virtual void Decompile(Language language, ITextOutput output)
{
language.WriteComment(output, string.Empty);
output.WriteOffsetComment(this);
output.WriteDefinition(UIUtils.CleanUpName(Name), this, TextTokenType.Comment);
output.Write(string.Format(" = {0}", ValueString), TextTokenType.Comment);
output.WriteLine();
}
public virtual void WriteShort(ITextOutput output, ILanguage language, bool showOffset)
{
language.WriteCommentBegin(output, true);
output.WriteOffsetComment(this, showOffset);
output.WriteDefinition(NameUtils.CleanName(Name), this, TextTokenKind.Comment);
output.Write(string.Format(" = {0}", ValueString), TextTokenKind.Comment);
language.WriteCommentEnd(output, true);
output.WriteLine();
}
public void Disassemble(MethodBody body, MethodDebugSymbols debugSymbols)
{
// start writing IL code
MethodDefinition method = body.Method;
output.WriteLine("// Method begins at RVA 0x{0:x4}", method.RVA);
output.WriteLine("// Code size {0} (0x{0:x})", body.CodeSize);
output.WriteLine(".maxstack {0}", body.MaxStackSize);
if (method.DeclaringType.Module.Assembly != null && method.DeclaringType.Module.Assembly.EntryPoint == method)
{
output.WriteLine(".entrypoint");
}
if (method.Body.HasVariables)
{
output.Write(".locals ");
if (method.Body.InitLocals)
{
output.Write("init ");
}
output.WriteLine("(");
output.Indent();
foreach (var v in method.Body.Variables)
{
output.WriteDefinition("[" + v.Index + "] ", v);
v.VariableType.WriteTo(output);
string name;
if (body.Method.DebugInformation.TryGetName(v, out name))
{
output.Write(' ');
output.Write(DisassemblerHelpers.Escape(name));
}
if (v.Index + 1 < method.Body.Variables.Count)
{
output.Write(',');
}
output.WriteLine();
}
output.Unindent();
output.WriteLine(")");
}
output.WriteLine();
if (detectControlStructure && body.Instructions.Count > 0)
{
Instruction inst = body.Instructions[0];
HashSet <int> branchTargets = GetBranchTargets(body.Instructions);
WriteStructureBody(new ILStructure(body), branchTargets, ref inst, debugSymbols, method.Body.CodeSize);
}
else
{
foreach (var inst in method.Body.Instructions)
{
var startLocation = output.Location;
inst.WriteTo(output);
if (debugSymbols != null)
{
// add IL code mappings - used in debugger
debugSymbols.SequencePoints.Add(
new SequencePoint()
{
StartLocation = output.Location,
EndLocation = output.Location,
ILRanges = new ILRange[] { new ILRange(inst.Offset, inst.Next == null ? method.Body.CodeSize : inst.Next.Offset) }
});
}
output.WriteLine();
}
if (method.Body.HasExceptionHandlers)
{
output.WriteLine();
foreach (var eh in method.Body.ExceptionHandlers)
{
eh.WriteTo(output);
output.WriteLine();
}
}
}
}
void WriteDefinition(string value, string def = null)
{
string str = NumberVMUtils.ToString(value, true);
output.WriteDefinition(str, BamlToolTipReference.Create(def ?? IdentifierEscaper.Escape(value)), TextTokenKind.String, true);
}
public static void WriteTo(this Instruction instruction, ITextOutput writer, DisassemblerOptions options, uint baseRva, long baseOffs, IInstructionBytesReader byteReader, MethodDef method)
{
if (options != null && (options.ShowTokenAndRvaComments || options.ShowILBytes))
{
writer.Write("/* ", TextTokenType.Comment);
bool needSpace = false;
if (options.ShowTokenAndRvaComments)
{
ulong fileOffset = (ulong)baseOffs + instruction.Offset;
writer.WriteReference(string.Format("0x{0:X8}", fileOffset), new AddressReference(options.OwnerModule == null ? null : options.OwnerModule.Location, false, fileOffset, (ulong)instruction.GetSize()), TextTokenType.Comment, false);
needSpace = true;
}
if (options.ShowILBytes)
{
if (needSpace)
{
writer.Write(' ', TextTokenType.Comment);
}
if (byteReader == null)
{
writer.Write("??", TextTokenType.Comment);
}
else
{
int size = instruction.GetSize();
for (int i = 0; i < size; i++)
{
var b = byteReader.ReadByte();
if (b < 0)
{
writer.Write("??", TextTokenType.Comment);
}
else
{
writer.Write(string.Format("{0:X2}", b), TextTokenType.Comment);
}
}
// Most instructions should be at most 5 bytes in length, but use 6 since
// ldftn/ldvirtftn are 6 bytes long. The longest instructions are those with
// 8 byte operands, ldc.i8 and ldc.r8: 9 bytes.
const int MIN_BYTES = 6;
for (int i = size; i < MIN_BYTES; i++)
{
writer.Write(" ", TextTokenType.Comment);
}
}
}
writer.Write(" */", TextTokenType.Comment);
writer.WriteSpace();
}
writer.WriteDefinition(DnlibExtensions.OffsetToString(instruction.GetOffset()), new InstructionReference(method, instruction), TextTokenType.Label, false);
writer.Write(':', TextTokenType.Operator);
writer.WriteSpace();
writer.WriteReference(instruction.OpCode.Name, instruction.OpCode, TextTokenType.OpCode);
if (instruction.Operand != null)
{
int count = OPERAND_ALIGNMENT - instruction.OpCode.Name.Length;
if (count <= 0)
{
count = 1;
}
writer.Write(spaces[count], TextTokenType.Text);
if (instruction.OpCode == OpCodes.Ldtoken)
{
var member = instruction.Operand as IMemberRef;
if (member != null && member.IsMethod)
{
writer.Write("method", TextTokenType.Keyword);
writer.WriteSpace();
}
else if (member != null && member.IsField)
{
writer.Write("field", TextTokenType.Keyword);
writer.WriteSpace();
}
}
WriteOperand(writer, instruction.Operand, method);
}
if (options != null && options.GetOpCodeDocumentation != null)
{
var doc = options.GetOpCodeDocumentation(instruction.OpCode);
if (doc != null)
{
writer.Write("\t", TextTokenType.Text);
writer.Write("// " + doc, TextTokenType.Comment);
}
}
}
public void Disassemble(MethodBody body, MemberMapping methodMapping)
{
// start writing IL code
MethodDefinition method = body.Method;
output.WriteLine("// Method begins at RVA 0x{0:x4}", method.RVA);
output.WriteLine("// Code size {0} (0x{0:x})", body.CodeSize);
output.WriteLine(".maxstack {0}", body.MaxStackSize);
if (method.DeclaringType.Module.Assembly.EntryPoint == method)
{
output.WriteLine(".entrypoint");
}
if (method.Body.HasVariables)
{
output.Write(".locals ");
if (method.Body.InitLocals)
{
output.Write("init ");
}
output.WriteLine("(");
output.Indent();
foreach (var v in method.Body.Variables)
{
output.WriteDefinition("[" + v.Index + "] ", v);
v.VariableType.WriteTo(output);
if (!string.IsNullOrEmpty(v.Name))
{
output.Write(' ');
output.Write(DisassemblerHelpers.Escape(v.Name));
}
if (v.Index + 1 < method.Body.Variables.Count)
{
output.Write(',');
}
output.WriteLine();
}
output.Unindent();
output.WriteLine(")");
}
output.WriteLine();
if (detectControlStructure && body.Instructions.Count > 0)
{
Instruction inst = body.Instructions[0];
HashSet <int> branchTargets = GetBranchTargets(body.Instructions);
WriteStructureBody(new ILStructure(body), branchTargets, ref inst, methodMapping, method.Body.CodeSize);
}
else
{
foreach (var inst in method.Body.Instructions)
{
inst.WriteTo(output);
if (methodMapping != null)
{
// add IL code mappings - used in debugger
methodMapping.MemberCodeMappings.Add(
new SourceCodeMapping()
{
SourceCodeLine = output.CurrentLine,
ILInstructionOffset = new ILRange {
From = inst.Offset, To = inst.Next == null ? method.Body.CodeSize : inst.Next.Offset
},
MemberMapping = methodMapping
});
}
output.WriteLine();
}
if (method.Body.HasExceptionHandlers)
{
output.WriteLine();
foreach (var eh in method.Body.ExceptionHandlers)
{
eh.WriteTo(output);
output.WriteLine();
}
}
}
}
public override void Decompile(MethodDef method, ITextOutput output, DecompilationContext ctx)
{
WriteCommentBegin(output, true);
output.Write("Method: ", TextTokenKind.Comment);
output.WriteDefinition(IdentifierEscaper.Escape(method.FullName), method, TextTokenKind.Comment, false);
WriteCommentEnd(output, true);
output.WriteLine();
if (!method.HasBody)
{
return;
}
StartKeywordBlock(output, ".body", method);
ILAstBuilder astBuilder = new ILAstBuilder();
ILBlock ilMethod = new ILBlock();
DecompilerContext context = new DecompilerContext(method.Module)
{
CurrentType = method.DeclaringType, CurrentMethod = method
};
ilMethod.Body = astBuilder.Build(method, inlineVariables, context);
if (abortBeforeStep != null)
{
new ILAstOptimizer().Optimize(context, ilMethod, abortBeforeStep.Value);
}
if (context.CurrentMethodIsAsync)
{
output.Write("async", TextTokenKind.Keyword);
output.Write("/", TextTokenKind.Operator);
output.WriteLine("await", TextTokenKind.Keyword);
}
var allVariables = ilMethod.GetSelfAndChildrenRecursive <ILExpression>().Select(e => e.Operand as ILVariable)
.Where(v => v != null && !v.IsParameter).Distinct();
foreach (ILVariable v in allVariables)
{
output.WriteDefinition(IdentifierEscaper.Escape(v.Name), v, v.IsParameter ? TextTokenKind.Parameter : TextTokenKind.Local);
if (v.Type != null)
{
output.WriteSpace();
output.Write(":", TextTokenKind.Operator);
output.WriteSpace();
if (v.IsPinned)
{
output.Write("pinned", TextTokenKind.Keyword);
output.WriteSpace();
}
v.Type.WriteTo(output, ILNameSyntax.ShortTypeName);
}
if (v.GeneratedByDecompiler)
{
output.WriteSpace();
output.Write("[", TextTokenKind.Operator);
output.Write("generated", TextTokenKind.Keyword);
output.Write("]", TextTokenKind.Operator);
}
output.WriteLine();
}
var memberMapping = new MemberMapping(method);
foreach (ILNode node in ilMethod.Body)
{
node.WriteTo(output, memberMapping);
if (!node.WritesNewLine)
{
output.WriteLine();
}
}
output.AddDebugSymbols(memberMapping);
EndKeywordBlock(output);
}
void StartKeywordBlock(ITextOutput output, string keyword, IMemberDef member)
{
output.Write(keyword, TextTokenType.Keyword);
output.WriteSpace();
output.WriteDefinition(IdentifierEscaper.Escape(member.Name), member, TextTokenHelper.GetTextTokenType(member), false);
output.WriteSpace();
output.WriteLeftBrace();
output.WriteLine();
output.Indent();
}
internal void WriteDefinitionTo(ITextOutput output)
{
switch (Kind)
{
case VariableKind.Local:
output.Write("local ");
break;
case VariableKind.PinnedLocal:
output.Write("pinned local ");
break;
case VariableKind.Parameter:
output.Write("param ");
break;
case VariableKind.Exception:
output.Write("exception ");
break;
case VariableKind.StackSlot:
output.Write("stack ");
break;
case VariableKind.InitializerTarget:
output.Write("initializer ");
break;
case VariableKind.ForeachLocal:
output.Write("foreach ");
break;
case VariableKind.UsingLocal:
output.Write("using ");
break;
default:
throw new ArgumentOutOfRangeException();
}
output.WriteDefinition(this.Name, this, isLocal: true);
output.Write(" : ");
Type.WriteTo(output);
output.Write('(');
if (Kind == VariableKind.Parameter || Kind == VariableKind.Local || Kind == VariableKind.PinnedLocal)
{
output.Write("Index={0}, ", Index);
}
output.Write("LoadCount={0}, AddressCount={1}, StoreCount={2})", LoadCount, AddressCount, StoreCount);
if (hasInitialValue && Kind != VariableKind.Parameter)
{
output.Write(" init");
}
if (CaptureScope != null)
{
output.Write(" captured in " + CaptureScope.EntryPoint.Label);
}
if (StateMachineField != null)
{
output.Write(" from state-machine");
}
}
public void Disassemble(MethodDef method, CilBody body, MemberMapping methodMapping)
{
// start writing IL code
output.WriteLineComment("// Method Token is 0x{0:x8}", method.MDToken.Raw);
output.WriteLineComment("// Method begins at RVA 0x{0:x}", method.RVA);
output.WriteLineComment("// Code size {0} (0x{0:x})", body.GetCodeSize());
output.WriteKeyword(".maxstack ");
output.WriteLiteral(body.MaxStack.ToString());
output.WriteLine();
if (method.DeclaringType.Module.Assembly != null && method.DeclaringType.Module.EntryPoint == method)
{
output.WriteKeyword(".entrypoint");
output.WriteLine();
}
if (method.Body.HasVariables)
{
output.WriteKeyword(".locals ");
if (method.Body.InitLocals)
{
output.WriteKeyword("init ");
}
output.WriteLine("(");
output.Indent();
foreach (var v in method.Body.Variables)
{
output.WriteDefinition("[" + v.Index + "]", v, true);
output.Write(" ");
v.Type.WriteTo(output);
if (!string.IsNullOrEmpty(v.Name))
{
output.Write(' ');
output.Write(DisassemblerHelpers.Escape(v.Name));
}
if (v.Index + 1 < method.Body.Variables.Count)
{
output.Write(',');
}
output.WriteLine();
}
output.Unindent();
output.WriteLine(")");
}
output.WriteLine();
if (detectControlStructure && body.Instructions.Count > 0)
{
Instruction inst = body.Instructions[0];
var branchTargets = GetBranchTargets(body.Instructions);
WriteStructureBody(method, body, new ILStructure(body), branchTargets, ref inst, methodMapping, method.Body.GetCodeSize());
}
else
{
foreach (var inst in method.Body.Instructions)
{
var startLocation = output.Location;
inst.WriteTo(method, body, output);
if (methodMapping != null)
{
var next = inst.GetNext(body);
// add IL code mappings - used in debugger
methodMapping.MemberCodeMappings.Add(
new SourceCodeMapping()
{
StartLocation = output.Location,
EndLocation = output.Location,
ILInstructionOffset = new ILRange {
From = inst.Offset, To = next == null ? method.Body.GetCodeSize() : next.Offset
},
MemberMapping = methodMapping
});
}
output.WriteLine();
}
if (method.Body.HasExceptionHandlers)
{
output.WriteLine();
foreach (var eh in method.Body.ExceptionHandlers)
{
eh.WriteTo(output);
output.WriteLine();
}
}
}
}
public void Disassemble(MethodDef method, MemberMapping debugSymbols)
{
// start writing IL code
CilBody body = method.Body;
uint codeSize = (uint)body.GetCodeSize();
output.WriteLine(string.Format("// RVA 0x{0:x8} - 0x{1:x8} ({2} (0x{2:x}) bytes)", (uint)method.RVA, (uint)method.RVA + codeSize, codeSize), TextTokenType.Comment);
output.WriteLine(string.Format("// Metadata token 0x{0:x8} (RID {1})", method.MDToken.ToInt32(), method.Rid), TextTokenType.Comment);
if (body.LocalVarSigTok != 0)
{
output.WriteLine(string.Format("// LocalVarSig token 0x{0:x8} (RID {1})", body.LocalVarSigTok, body.LocalVarSigTok & 0xFFFFFF), TextTokenType.Comment);
}
output.Write(".maxstack", TextTokenType.ILDirective);
output.WriteSpace();
output.WriteLine(string.Format("{0}", body.MaxStack), TextTokenType.Number);
if (method.DeclaringType.Module.EntryPoint == method)
{
output.WriteLine(".entrypoint", TextTokenType.ILDirective);
}
if (method.Body.HasVariables)
{
output.Write(".locals", TextTokenType.ILDirective);
output.WriteSpace();
if (method.Body.InitLocals)
{
output.Write("init", TextTokenType.Keyword);
output.WriteSpace();
}
output.WriteLine("(", TextTokenType.Operator);
output.Indent();
foreach (var v in method.Body.Variables)
{
output.Write('[', TextTokenType.Operator);
output.WriteDefinition(v.Index.ToString(), v, TextTokenType.Number);
output.Write(']', TextTokenType.Operator);
output.WriteSpace();
v.Type.WriteTo(output);
if (!string.IsNullOrEmpty(v.Name))
{
output.WriteSpace();
output.Write(DisassemblerHelpers.Escape(v.Name), TextTokenType.Local);
}
if (v.Index + 1 < method.Body.Variables.Count)
{
output.Write(',', TextTokenType.Operator);
}
output.WriteLine();
}
output.Unindent();
output.WriteLine(")", TextTokenType.Operator);
}
output.WriteLine();
if (detectControlStructure && body.Instructions.Count > 0)
{
int index = 0;
HashSet <uint> branchTargets = GetBranchTargets(body.Instructions);
WriteStructureBody(body, new ILStructure(body), branchTargets, ref index, debugSymbols, method.Body.GetCodeSize());
}
else
{
var instructions = method.Body.Instructions;
for (int i = 0; i < instructions.Count; i++)
{
var inst = instructions[i];
var startLocation = output.Location;
inst.WriteTo(output, options.GetOpCodeDocumentation);
if (debugSymbols != null)
{
// add IL code mappings - used in debugger
var next = i + 1 < instructions.Count ? instructions[i + 1] : null;
debugSymbols.MemberCodeMappings.Add(
new SourceCodeMapping()
{
StartLocation = output.Location,
EndLocation = output.Location,
ILInstructionOffset = new ILRange(inst.Offset, next == null ? (uint)method.Body.GetCodeSize() : next.Offset),
MemberMapping = debugSymbols
});
}
output.WriteLine();
}
if (method.Body.HasExceptionHandlers)
{
output.WriteLine();
foreach (var eh in method.Body.ExceptionHandlers)
{
eh.WriteTo(output);
output.WriteLine();
}
}
}
}
public void DisassembleMethod(MethodDefinition method)
{
// write method header
output.WriteDefinition(".method ", method);
DisassembleMethodInternal(method);
}
public override void WriteTo(ITextOutput output)
{
output.WriteDefinition(Name + ":", this);
}
public void WriteDefinition(string text, object definition, bool isLocal = true)
{
_inner.WriteDefinition(text, definition, isLocal);
_currentLineLength += text.Length;
}
public override void DecompileField(FieldDef field, ITextOutput output, DecompilationOptions options)
{
output.WriteReference(IdentifierEscaper.Escape(field.FieldType.GetFullName()), field.FieldType.ToTypeDefOrRef(), TextTokenHelper.GetTextTokenType(field.FieldType));
output.WriteSpace();
output.WriteDefinition(IdentifierEscaper.Escape(field.Name), field, TextTokenHelper.GetTextTokenType(field), false);
var c = field.Constant;
if (c != null) {
output.WriteSpace();
output.Write('=', TextTokenType.Operator);
output.WriteSpace();
if (c.Value == null)
output.Write("null", TextTokenType.Keyword);
else {
switch (c.Type) {
case ElementType.Boolean:
if (c.Value is bool)
output.Write((bool)c.Value ? "true" : "false", TextTokenType.Keyword);
else
goto default;
break;
case ElementType.Char:
output.Write(string.Format("'{0}'", c.Value), TextTokenType.Char);
break;
case ElementType.I1:
case ElementType.U1:
case ElementType.I2:
case ElementType.U2:
case ElementType.I4:
case ElementType.U4:
case ElementType.I8:
case ElementType.U8:
case ElementType.R4:
case ElementType.R8:
case ElementType.I:
case ElementType.U:
output.Write(string.Format("{0}", c.Value), TextTokenType.Number);
break;
case ElementType.String:
output.Write(string.Format("{0}", c.Value), TextTokenType.String);
break;
default:
output.Write(string.Format("{0}", c.Value), TextTokenType.Text);
break;
}
}
}
}
public override void WriteShort(ITextOutput output, ILanguage language, bool showOffset)
{
var smartOutput = output as ISmartTextOutput;
if (smartOutput != null) {
language.WriteCommentBegin(output, true);
output.WriteOffsetComment(this, showOffset);
smartOutput.AddUIElement(() => {
return new System.Windows.Controls.Image {
Source = imageSource,
};
});
output.Write(" = ", TextTokenKind.Comment);
output.WriteDefinition(NameUtils.CleanName(Name), this, TextTokenKind.Comment);
language.WriteCommentEnd(output, true);
output.WriteLine();
return;
}
base.WriteShort(output, language, showOffset);
}
/// <summary>
/// Write human readable output.
/// </summary>
public override void WriteTo(ITextOutput output, FormattingOptions format)
{
output.WriteDefinition(Name + ":", this);
}
void WriteDefinition(string value, string def = null)
{
string str = string.Format("\"{0}\"", TextWriterTokenWriter.ConvertString(value));
output.WriteDefinition(str, def ?? IdentifierEscaper.Escape(value), TextTokenType.String, true);
}
