// Returns the previous method, or null if none
public MethodDef addMethod(MethodDef ifaceMethod, MethodDef classMethod)
{
if (!ifaceMethodToClassMethod.ContainsKey(ifaceMethod))
throw new ApplicationException("Could not find interface method");
MethodDef oldMethod;
ifaceMethodToClassMethod.TryGetValue(ifaceMethod, out oldMethod);
ifaceMethodToClassMethod[ifaceMethod] = classMethod;
return oldMethod;
}
public MMethodDef(MethodDef methodDef, MTypeDef owner, int index)
: base(methodDef, owner, index) {
genericParams = MGenericParamDef.CreateGenericParamDefList(MethodDef.GenericParameters);
visibleBaseIndex = methodDef.MethodSig != null && methodDef.MethodSig.HasThis ? 1 : 0;
for (int i = 0; i < methodDef.Parameters.Count; i++) {
var param = methodDef.Parameters[i];
if (param.IsNormalMethodParameter)
visibleParamCount++;
paramDefs.Add(new MParamDef(param, i));
}
returnParamDef = new MParamDef(methodDef.Parameters.ReturnParameter, -1);
}
public void same(MethodDef a, MethodDef b)
{
merge(get(a), get(b));
}
public void add(MethodDef methodDef)
{
get(methodDef);
}
public MethodInst(MethodDef origMethodDef, MethodReference methodReference)
{
this.origMethodDef = origMethodDef;
this.methodReference = methodReference;
}
// Returns the previous classMethod, or null if none
public MethodDef addMethod(TypeInfo iface, MethodDef ifaceMethod, MethodDef classMethod)
{
return addMethod(iface.typeReference, ifaceMethod, classMethod);
}
static PropertySig CreatePropertySig(MethodDef method, TypeSig propType, bool isGetter) {
if (method == null)
return null;
var sig = method.MethodSig;
if (sig == null)
return null;
var newSig = new PropertySig(sig.HasThis, propType);
newSig.GenParamCount = sig.GenParamCount;
int count = sig.Params.Count;
if (!isGetter)
count--;
for (int i = 0; i < count; i++)
newSig.Params.Add(sig.Params[i]);
return newSig;
}
public MethodNameGroup get(MethodDef method)
{
if (!method.isVirtual())
throw new ApplicationException("Not a virtual method");
MethodNameGroup group;
if (!methodGroups.TryGetValue(method, out group)) {
methodGroups[method] = group = new MethodNameGroup();
group.add(method);
}
return group;
}
static bool isEventHandler(MethodDef methodDef)
{
if (methodDef.MethodDefinition.Parameters.Count != 2)
return false;
if (methodDef.MethodDefinition.MethodReturnType.ReturnType.FullName != "System.Void")
return false;
if (methodDef.MethodDefinition.Parameters[0].ParameterType.FullName != "System.Object")
return false;
if (!methodDef.MethodDefinition.Parameters[1].ParameterType.FullName.Contains("EventArgs"))
return false;
return true;
}
public void renameMethod(MethodDef methodDef, string methodName)
{
if (!canRenameMethod(methodDef))
return;
var methodInfo = method(methodDef);
variableNameState.addMethodName(methodName);
methodInfo.rename(methodName);
}
public MethodInfo method(MethodDef method)
{
return memberInfos.method(method);
}
PropertyDef getOverriddenProperty(MethodDef overrideMethod)
{
var theMethod = overrideMethod.MethodDefinition.Overrides[0];
var overriddenMethod = modules.resolve(theMethod);
if (overriddenMethod != null)
return overriddenMethod.Property;
var extType = theMethod.DeclaringType;
if (extType == null)
return null;
var extTypeDef = modules.resolveOther(extType);
if (extTypeDef == null)
return null;
var theMethodDef = extTypeDef.find(theMethod);
if (theMethodDef != null)
return theMethodDef.Property;
return null;
}
MethodDef getOverriddenMethod(MethodDef overrideMethod)
{
return modules.resolve(overrideMethod.MethodDefinition.Overrides[0]);
}
EventDef getOverriddenEvent(MethodDef overrideMethod, out MethodDef overriddenMethod)
{
var theMethod = overrideMethod.MethodDefinition.Overrides[0];
overriddenMethod = modules.resolve(theMethod);
if (overriddenMethod != null)
return overriddenMethod.Event;
var extType = theMethod.DeclaringType;
if (extType == null)
return null;
var extTypeDef = modules.resolveOther(extType);
if (extTypeDef == null)
return null;
overriddenMethod = extTypeDef.find(theMethod);
if (overriddenMethod != null)
return overriddenMethod.Event;
return null;
}
bool canRenameMethod(MethodDef methodDef)
{
var methodInfo = method(methodDef);
if (methodDef.isStatic()) {
if (methodInfo.oldName == ".cctor")
return false;
}
else if (methodDef.isVirtual()) {
if (DotNetUtils.derivesFromDelegate(type.TypeDefinition)) {
switch (methodInfo.oldName) {
case "BeginInvoke":
case "EndInvoke":
case "Invoke":
return false;
}
}
}
else {
if (methodInfo.oldName == ".ctor")
return false;
}
return true;
}
static IMethod GetVbHandler(MethodDef method, out string eventName) {
eventName = null;
if (method.Body == null)
return null;
var sig = method.MethodSig;
if (sig == null)
return null;
if (sig.RetType.ElementType != ElementType.Void)
return null;
if (sig.Params.Count != 1)
return null;
if (method.Body.Variables.Count != 1)
return null;
if (!IsEventHandlerType(method.Body.Variables[0].Type))
return null;
var instructions = method.Body.Instructions;
int index = 0;
int newobjIndex = FindInstruction(instructions, index, Code.Newobj);
if (newobjIndex == -1 || FindInstruction(instructions, newobjIndex + 1, Code.Newobj) != -1)
return null;
if (!IsEventHandlerCtor(instructions[newobjIndex].Operand as IMethod))
return null;
if (newobjIndex < 1)
return null;
var ldvirtftn = instructions[newobjIndex - 1];
if (ldvirtftn.OpCode.Code != Code.Ldvirtftn && ldvirtftn.OpCode.Code != Code.Ldftn)
return null;
var handlerMethod = ldvirtftn.Operand as IMethod;
if (handlerMethod == null)
return null;
if (!new SigComparer().Equals(method.DeclaringType, handlerMethod.DeclaringType))
return null;
index = newobjIndex;
IField addField, removeField;
IMethod addMethod, removeMethod;
if (!FindEventCall(instructions, ref index, out removeField, out removeMethod))
return null;
if (!FindEventCall(instructions, ref index, out addField, out addMethod))
return null;
if (FindInstruction(instructions, index, Code.Callvirt) != -1)
return null;
if (!new SigComparer().Equals(addField, removeField))
return null;
if (!new SigComparer().Equals(method.DeclaringType, addField.DeclaringType))
return null;
if (!new SigComparer().Equals(addMethod.DeclaringType, removeMethod.DeclaringType))
return null;
if (!Utils.StartsWith(addMethod.Name.String, "add_", StringComparison.Ordinal))
return null;
if (!Utils.StartsWith(removeMethod.Name.String, "remove_", StringComparison.Ordinal))
return null;
eventName = addMethod.Name.String.Substring(4);
if (eventName != removeMethod.Name.String.Substring(7))
return null;
if (eventName == "")
return null;
return handlerMethod;
}
void findInitializeComponentMethod(TypeDef type, MethodDef possibleInitMethod)
{
foreach (var methodDef in type.AllMethods) {
if (methodDef.MethodDefinition.Name != ".ctor")
continue;
if (methodDef.MethodDefinition.Body == null)
continue;
foreach (var instr in methodDef.MethodDefinition.Body.Instructions) {
if (instr.OpCode.Code != Code.Call && instr.OpCode.Code != Code.Callvirt)
continue;
if (!MemberReferenceHelper.compareMethodReferenceAndDeclaringType(possibleInitMethod.MethodDefinition, instr.Operand as MethodReference))
continue;
memberInfos.method(possibleInitMethod).suggestedName = "InitializeComponent";
return;
}
}
}
MPropertyDef CreateProperty(MTypeDef ownerType, string name, TypeSig propType, MethodDef getter, MethodDef setter) {
if (string.IsNullOrEmpty(name) || propType.ElementType == ElementType.Void)
return null;
var newSig = CreatePropertySig(getter, propType, true) ?? CreatePropertySig(setter, propType, false);
if (newSig == null)
return null;
var newProp = ownerType.Module.ModuleDefMD.UpdateRowId(new PropertyDefUser(name, newSig, 0));
newProp.GetMethod = getter;
newProp.SetMethod = setter;
var propDef = ownerType.FindAny(newProp);
if (propDef != null)
return propDef;
propDef = ownerType.Create(newProp);
memberInfos.Add(propDef);
if (isVerbose)
Logger.v("Restoring property: {0}", Utils.RemoveNewlines(newProp));
return propDef;
}
string getPinvokeName(MethodDef methodDef)
{
var entryPoint = methodDef.MethodDefinition.PInvokeInfo.EntryPoint;
if (Regex.IsMatch(entryPoint, @"^#\d+$"))
entryPoint = DotNetUtils.getDllName(methodDef.MethodDefinition.PInvokeInfo.Module.Name) + "_" + entryPoint.Substring(1);
return entryPoint;
}
public void RemoveMethodDef(MethodDef md) {
if (!MethodDefs.Remove(md))
throw new ApplicationException(string.Format("Could not remove MethodDef: {0}", md));
}
void prepareRenameMethodArgs(MethodDef methodDef)
{
if (methodDef.ParamDefs.Count > 0) {
if (isEventHandler(methodDef)) {
ParamInfo info;
info = param(methodDef.ParamDefs[0]);
if (!info.gotNewName())
info.newName = "sender";
info = param(methodDef.ParamDefs[1]);
if (!info.gotNewName())
info.newName = "e";
}
else {
var newVariableNameState = variableNameState.cloneParamsOnly();
var checker = NameChecker;
foreach (var paramDef in methodDef.ParamDefs) {
var info = param(paramDef);
if (info.gotNewName())
continue;
if (!checker.isValidMethodArgName(info.oldName))
info.newName = newVariableNameState.getNewParamName(info.oldName, paramDef.ParameterDefinition);
}
}
}
if ((methodDef.Property != null && methodDef == methodDef.Property.SetMethod) ||
(methodDef.Event != null && (methodDef == methodDef.Event.AddMethod || methodDef == methodDef.Event.RemoveMethod))) {
if (methodDef.ParamDefs.Count > 0) {
var paramDef = methodDef.ParamDefs[methodDef.ParamDefs.Count - 1];
param(paramDef).newName = "value";
}
}
}
public void addMethodIfEmpty(TypeInfo iface, MethodDef ifaceMethod, MethodDef classMethod)
{
InterfaceMethodInfo info;
var key = new TypeReferenceKey(iface.typeReference);
if (!interfaceMethods.TryGetValue(key, out info))
throw new ApplicationException("Could not find interface");
info.addMethodIfEmpty(ifaceMethod, classMethod);
}
void renameMethod(MethodDef methodDef)
{
if (methodDef.isVirtual())
throw new ApplicationException("Can't rename virtual methods here");
if (!canRenameMethod(methodDef))
return;
var info = method(methodDef);
if (info.renamed)
return;
info.renamed = true;
var checker = NameChecker;
// PInvoke methods' EntryPoint is always valid. It has to, so always rename.
if (!NameChecker.isValidMethodName(info.oldName) || methodDef.MethodDefinition.PInvokeInfo != null) {
INameCreator nameCreator = null;
string newName = info.suggestedName;
if (methodDef.MethodDefinition.PInvokeInfo != null)
newName = getPinvokeName(methodDef);
else if (methodDef.isStatic())
nameCreator = variableNameState.staticMethodNameCreator;
else
nameCreator = variableNameState.instanceMethodNameCreator;
if (newName != null)
nameCreator = new NameCreator2(newName);
renameMethod(methodDef, variableNameState.getNewMethodName(info.oldName, nameCreator));
}
}
public void add(MethodDef m)
{
methods.add(m);
}
void renameSpecialMethod(MethodDef methodDef, string newName)
{
if (methodDef == null)
return;
if (methodDef.isVirtual())
return;
renameMethod(methodDef, newName);
}
public void addMethodIfEmpty(MethodDef ifaceMethod, MethodDef classMethod)
{
if (ifaceMethodToClassMethod[ifaceMethod] == null)
addMethod(ifaceMethod, classMethod);
}
void Add(MethodDef md)
{
if (md == null || methodDefs.ContainsKey(md))
return;
if (md.DeclaringType != null && md.DeclaringType.Module != validModule)
return;
methodDefs[md] = true;
Add(md.Signature);
Add(md.ParamDefs);
Add(md.GenericParameters);
Add(md.DeclSecurities);
Add(md.MethodBody);
Add(md.CustomAttributes);
Add(md.Overrides);
Add(md.DeclaringType);
}
public MethodNameScope get(MethodDef method)
{
if (!method.isVirtual())
throw new ApplicationException("Not a virtual method");
MethodNameScope scope;
if (!methodScopes.TryGetValue(method, out scope)) {
methodScopes[method] = scope = new MethodNameScope();
scope.add(method);
}
return scope;
}
static IField GetFieldRef(MethodDef method) {
if (method == null || method.Body == null)
return null;
var instructions = method.Body.Instructions;
int index = 0;
var ldarg0 = DotNetUtils.GetInstruction(instructions, ref index);
if (ldarg0 == null || ldarg0.GetParameterIndex() != 0)
return null;
var ldfld = DotNetUtils.GetInstruction(instructions, ref index);
if (ldfld == null || ldfld.OpCode.Code != Code.Ldfld)
return null;
var ret = DotNetUtils.GetInstruction(instructions, ref index);
if (ret == null)
return null;
if (ret.IsStloc()) {
var local = ret.GetLocal(method.Body.Variables);
ret = DotNetUtils.GetInstruction(instructions, ref index);
if (ret == null || !ret.IsLdloc())
return null;
if (ret.GetLocal(method.Body.Variables) != local)
return null;
ret = DotNetUtils.GetInstruction(instructions, ref index);
}
if (ret == null || ret.OpCode.Code != Code.Ret)
return null;
return ldfld.Operand as IField;
}
public void add(MethodDef method)
{
methods.Add(method);
}
public MMethodDef FindMethod(MethodDef md)
{
return(methods.Find(md));
}
