public static NamedValue GetNullBasedArray(Value val)
{
IList<FieldInfo> flds = val.Type.GetFields();
if (flds.Count != 3) return null;
foreach (FieldInfo fi in flds)
if (fi.Name == "NullBasedArray") return fi.GetValue(val);
return null;
}
// Object graph visualizer: collection support temp disabled (porting to new NRefactory).
/*
/// <summary>
/// Creates an expression which, when evaluated, creates a List<T> in the debugee
/// filled with contents of IEnumerable<T> from the debugee.
/// </summary>
/// <param name="iEnumerableVariable">Expression for IEnumerable variable in the debugee.</param>
/// <param name="itemType">
/// The generic argument of IEnumerable<T> that <paramref name="iEnumerableVariable"/> implements.</param>
public static Expression CreateDebugListExpression(Expression iEnumerableVariable, DebugType itemType, out DebugType listType)
{
// is using itemType.AppDomain ok?
listType = DebugType.CreateFromType(itemType.AppDomain, typeof(System.Collections.Generic.List<>), itemType);
var iEnumerableType = DebugType.CreateFromType(itemType.AppDomain, typeof(IEnumerable<>), itemType);
// explicitely cast the variable to IEnumerable<T>, where T is itemType
Expression iEnumerableVariableExplicitCast = new CastExpression(iEnumerableType.GetTypeReference() , iEnumerableVariable, CastType.Cast);
return new ObjectCreateExpression(listType.GetTypeReference(), iEnumerableVariableExplicitCast.SingleItemList());
}*/
/// <summary>
/// Evaluates 'new List<T>(iEnumerableValue)' in the debuggee.
/// </summary>
public static Value CreateListFromIEnumerable(Value iEnumerableValue)
{
ParameterizedType iEnumerableType;
IType itemType;
if (!iEnumerableValue.Type.ResolveIEnumerableImplementation(out iEnumerableType, out itemType))
throw new GetValueException("Value is not IEnumerable");
return ValueNode.CreateListFromIEnumerable(iEnumerableType, iEnumerableValue).GetPermanentReferenceOfHeapValue();
}
/// <summary> Get the value of given member. </summary>
/// <param name="objectInstance">null if member is static</param>
public static Value GetMemberValue(Value objectInstance, MemberInfo memberInfo, Value[] arguments)
{
arguments = arguments ?? new Value[0];
if (memberInfo is FieldInfo) {
if (arguments.Length > 0) throw new GetValueException("Arguments can not be used for a field");
return GetFieldValue(objectInstance, (FieldInfo)memberInfo);
} else if (memberInfo is PropertyInfo) {
return GetPropertyValue(objectInstance, (PropertyInfo)memberInfo, arguments);
} else if (memberInfo is MethodInfo) {
return InvokeMethod(objectInstance, (MethodInfo)memberInfo, arguments);
}
throw new DebuggerException("Unknown member type: " + memberInfo.GetType());
}
static void CheckObject(Value objectInstance, MemberInfo memberInfo)
{
if (!memberInfo.IsStatic) {
if (objectInstance == null) {
throw new DebuggerException("No target object specified");
}
if (objectInstance.IsNull) {
throw new GetValueException("Null reference");
}
//if (!objectInstance.IsObject) // eg Array.Length can be called
if (!memberInfo.DeclaringType.IsInstanceOfType(objectInstance)) {
throw new GetValueException("Object is not of type " + memberInfo.DeclaringType.FullName);
}
}
}
/// <summary>
/// Given an object of correct type, get the value of this field
/// </summary>
public MemberValue GetValue(Value objectInstance) {
if (objectInstance != null)
return new MemberValue(
this,
this.Process,
new IExpirable[] {objectInstance},
new IMutable[] {objectInstance},
delegate { return GetCorValue(objectInstance); }
);
else return
new MemberValue(
this,
this.Process,
new IExpirable[0],
new IMutable[0] ,
delegate { return GetCorValue(objectInstance); }
);
}
public static int GetImageListIndex(Value val)
{
try
{
if (val.IsObject)
{
return 0; // Class
}
else
{
return 1; // Field
}
}
catch (System.Exception e)
{
return 1;
}
}
internal Exception(Thread thread)
{
creationTime = DateTime.Now;
this.process = thread.Process;
this.thread = thread;
corValue = thread.CorThread.CurrentException;
exceptionType = thread.CurrentExceptionType;
Value runtimeValue = new Value(process,
new IExpirable[] {process.PauseSession},
new IMutable[] {},
delegate { return corValue; } );
NamedValue nv = runtimeValue.GetMember("_message");
if (!nv.IsNull)
message = nv.AsString;
else message = runtimeValue.Type.FullName;
if (thread.LastFunctionWithLoadedSymbols != null) {
location = thread.LastFunctionWithLoadedSymbols.NextStatement;
}
callstack = "";
int callstackItems = 0;
if (!nv.IsNull)
foreach(Function function in thread.Callstack) {
if (callstackItems >= 100) {
callstack += "...\n";
break;
}
SourcecodeSegment loc = function.NextStatement;
callstack += function.Name + "()";
if (loc != null) {
callstack += " - " + loc.SourceFullFilename + ":" + loc.StartLine + "," + loc.StartColumn;
}
callstack += "\n";
callstackItems++;
}
type = runtimeValue.Type.FullName;
}
bool InjectInterpreter()
{
if (!DebuggerService.IsDebuggerLoaded) {
PrintLine(ResourceService.GetString("ICSharpCode.BooInterpreter.Debuggee.ErrorDebuggerNotLoaded"));
return false;
}
WindowsDebugger winDebugger = DebuggerService.CurrentDebugger as WindowsDebugger;
if (winDebugger == null) {
PrintLine(ResourceService.GetString("ICSharpCode.BooInterpreter.Debuggee.ErrorIncompatibleDebugger"));
return false;
}
if (winDebugger.DebuggedProcess == null) {
PrintLine(ResourceService.GetString("ICSharpCode.BooInterpreter.Debuggee.ErrorNoProgramDebugged"));
return false;
}
process = winDebugger.DebuggedProcess;
process.Expired += delegate { interpreter = null; };
process.LogMessage -= OnDebuggerLogMessage;
process.LogMessage += OnDebuggerLogMessage;
Value assembly;
// Boo.Lang.Interpreter.dll
string path = Path.Combine(Path.GetDirectoryName(typeof(InterpreterContext).Assembly.Location), "Boo.Lang.Interpreter.dll");
assembly = LoadAssembly(path);
// Debugger.BooInterpreter.dll
assembly = LoadAssembly(typeof(DebugeeInteractiveInterpreter).Assembly.Location);
Value interpreterType = Eval.NewString(process, typeof(DebugeeInteractiveInterpreter).FullName);
interpreter = Eval.InvokeMethod(process, typeof(Assembly), "CreateInstance", assembly, new Value[] {interpreterType});
interpreter_localVariable = interpreter.GetMember("localVariable");
RunCommand(
"import System\n" +
"import System.IO\n" +
"import System.Text\n" +
"interpreter.RememberLastValue = true\n" +
"interpreter.Print = def(msg): System.Diagnostics.Debugger.Log(0xB00, \"DebugeeInterpreterContext.PrintLine\", msg)");
return true;
}
static ICorDebugValue[] ValuesAsCorDebug(Value[] values)
{
ICorDebugValue[] valuesAsCorDebug = new ICorDebugValue[values.Length];
for(int i = 0; i < values.Length; i++) {
valuesAsCorDebug[i] = values[i].CorValue;
}
return valuesAsCorDebug;
}
public static Value NewObject(Thread evalThread, IMethod constructor, Value[] constructorArguments)
{
return AsyncNewObject(evalThread, constructor, constructorArguments).WaitForResult();
}
public static Eval AsyncInvokeMethod(Thread evalThread, IMethod method, Value thisValue, Value[] args)
{
return new Eval(
evalThread,
"Function call: " + method.FullName,
delegate(Eval eval) {
MethodInvokeStarter(eval, method, thisValue, args);
}
);
}
internal void NotifyEvaluationComplete(bool successful)
{
// Eval result should be ICorDebugHandleValue so it should survive Continue()
if (state == EvalState.EvaluatedTimeOut) {
return;
}
if (corEval.GetResult() == null) {
state = EvalState.EvaluatedNoResult;
} else {
if (successful) {
state = EvalState.EvaluatedSuccessfully;
} else {
state = EvalState.EvaluatedException;
}
result = new Value(AppDomain, corEval.GetResult());
}
}
/// <summary>
/// Formats current Value according to the given format, specified by <see cref="System.Diagnostics.DebuggerDisplayAttribute"/>.
/// </summary>
/// <param name="debugFormat">Format to use</param>
/// <returns>Formatted string.</returns>
/// <remarks>
/// Not all possible expressions are supported, but only a simple set.
/// Otherwise we would have to support any C# expression.
/// </remarks>
static string FormatDebugValue(Thread evalThread, Value value, string debugFormat)
{
StringBuilder formattedOutput = new StringBuilder();
StringBuilder currentFieldName = new StringBuilder();
bool insideFieldName = false;
bool ignoringRestOfExpression = false;
bool insideMethodBrackets = false;
bool isMethodName = false;
bool escapeNextChar = false;
for (int i = 0; i < debugFormat.Length; i++) {
char thisChar = debugFormat[i];
if (!escapeNextChar && (thisChar == '{')) {
insideFieldName = true;
} else if (!escapeNextChar && (thisChar == '}')) {
// Insert contents of specified member, if we can find it, otherwise we display "?"
string memberValueStr = "?";
// Decide if we want a method or field/property
Predicate<IUnresolvedMember> isNeededMember;
if (isMethodName) {
// We only support methods without parameters here!
isNeededMember = m => (m.Name == currentFieldName.ToString())
&& (m.SymbolKind == SymbolKind.Method)
&& (((IUnresolvedMethod) m).Parameters.Count == 0);
} else {
isNeededMember = m => (m.Name == currentFieldName.ToString())
&& ((m.SymbolKind == SymbolKind.Field) || (m.SymbolKind == SymbolKind.Property));
}
IMember member = value.type.GetMembers(isNeededMember).FirstOrDefault();
if (member != null) {
Value memberValue = value.GetMemberValue(evalThread, member);
memberValueStr = memberValue.InvokeToString(evalThread);
}
formattedOutput.Append(memberValueStr);
insideFieldName = false;
ignoringRestOfExpression = false;
insideMethodBrackets = false;
isMethodName = false;
currentFieldName.Clear();
} else if (!escapeNextChar && (thisChar == '\\')) {
// Next character will be escaped
escapeNextChar = true;
} else if (insideFieldName && (thisChar == '(')) {
insideMethodBrackets = true;
} else if ((thisChar == ')') && insideMethodBrackets) {
insideMethodBrackets = false;
isMethodName = true;
// Everything following the brackets will be ignored
ignoringRestOfExpression = true;
} else if (insideFieldName && !Char.IsDigit(thisChar) && !Char.IsLetter(thisChar)) {
// Char seems not to belong to a field name, ignore everything from now on
ignoringRestOfExpression = true;
} else {
if (insideFieldName) {
if (!ignoringRestOfExpression)
currentFieldName.Append(thisChar);
} else {
formattedOutput.Append(thisChar);
}
escapeNextChar = false;
}
}
return formattedOutput.ToString();
}
/// <summary> Set the value of the property using the set accessor </summary>
public Value SetPropertyValue(Thread evalThread, IProperty propertyInfo, Value[] arguments, Value newValue)
{
return SetPropertyValue(evalThread, this, propertyInfo, arguments, newValue);
}
/// <summary> Determines whether the given object is instance of the
/// current type or can be implicitly cast to it </summary>
public bool IsInstanceOfType(Value objectInstance)
{
return objectInstance.Type.Equals(this) ||
objectInstance.Type.IsSubclassOf(this);
}
static ICorDebugValue GetFieldCorValue(Thread contextThread, Value objectInstance, IField fieldInfo)
{
// Current frame is used to resolve context specific static values (eg. ThreadStatic)
ICorDebugFrame curFrame = null;
if (contextThread != null && contextThread.MostRecentStackFrame != null && contextThread.MostRecentStackFrame.CorILFrame != null) {
curFrame = contextThread.MostRecentStackFrame.CorILFrame;
}
try {
if (fieldInfo.IsStatic) {
return (fieldInfo.DeclaringType).ToCorDebug().GetStaticFieldValue(fieldInfo.GetMetadataToken(), curFrame);
} else {
return objectInstance.CorObjectValue.GetFieldValue((fieldInfo.DeclaringType).ToCorDebug().GetClass(), fieldInfo.GetMetadataToken());
}
} catch (COMException e) {
// System.Runtime.InteropServices.COMException (0x80131303): A class is not loaded. (Exception from HRESULT: 0x80131303)
if ((uint)e.ErrorCode == 0x80131303)
throw new GetValueException("Class " + fieldInfo.DeclaringType.FullName + " is not loaded");
throw new GetValueException("Can not get value of field", e);
}
}
/// <summary> Get the value of the property using the get accessor </summary>
public static Value GetPropertyValue(Thread evalThread, Value objectInstance, IProperty propertyInfo, params Value[] arguments)
{
CheckObject(objectInstance, propertyInfo);
if (!propertyInfo.CanGet) throw new GetValueException("Property does not have a get method");
return Value.InvokeMethod(evalThread, objectInstance, propertyInfo.Getter, arguments);
}
// Box value type
public Value Box(Thread evalThread)
{
byte[] rawValue = this.CorGenericValue.GetRawValue();
// The type must not be a primive type (always true in current design)
ICorDebugReferenceValue corRefValue = Eval.NewObjectNoConstructor(evalThread, this.Type).CorReferenceValue;
// Make the reference to box permanent
corRefValue = ((ICorDebugHeapValue2)corRefValue.Dereference()).CreateHandle(CorDebugHandleType.HANDLE_STRONG);
// Create new value
Value newValue = new Value(appDomain, corRefValue);
// Copy the data inside the box
newValue.CorGenericValue.SetRawValue(rawValue);
return newValue;
}
/// <summary> Set the value of the property using the set accessor </summary>
public static Value SetPropertyValue(Thread evalThread, Value objectInstance, IProperty propertyInfo, Value[] arguments, Value newValue)
{
CheckObject(objectInstance, propertyInfo);
if (!propertyInfo.CanSet) throw new GetValueException("Property does not have a set method");
arguments = arguments ?? new Value[0];
Value[] allParams = new Value[1 + arguments.Length];
allParams[0] = newValue;
arguments.CopyTo(allParams, 1);
return Value.InvokeMethod(evalThread, objectInstance, propertyInfo.Setter, allParams);
}
/// <summary> Copy the acutal value from some other Value object </summary>
public void SetValue(Thread evalThread, Value newValue)
{
ICorDebugValue newCorValue = newValue.CorValue;
if (this.CorValue is ICorDebugReferenceValue) {
if (!(newCorValue is ICorDebugReferenceValue))
newCorValue = newValue.Box(evalThread).CorValue;
((ICorDebugReferenceValue)this.CorValue).SetValue(((ICorDebugReferenceValue)newCorValue).GetValue());
} else {
this.CorGenericValue.SetRawValue(newValue.CorGenericValue.GetRawValue());
}
}
/// <summary> Asynchronously invoke the method </summary>
public static Eval AsyncInvokeMethod(Thread evalThread, Value objectInstance, IMethod methodInfo, params Value[] arguments)
{
CheckObject(objectInstance, methodInfo);
return Eval.AsyncInvokeMethod(
evalThread,
(IMethod)methodInfo,
methodInfo.IsStatic ? null : objectInstance,
arguments ?? new Value[0]
);
}
public void SetArrayElement(Thread evalThread, uint[] elementIndices, Value newVal)
{
Value elem = GetArrayElement(elementIndices);
elem.SetValue(evalThread, newVal);
}
/// <summary> Synchronously calls a function and returns its return value </summary>
public static Value InvokeMethod(Thread evalThread, IMethod method, Value thisValue, Value[] args)
{
uint fieldToken = method.GetBackingFieldToken();
if (fieldToken != 0) {
var field = method.DeclaringType.ImportField(fieldToken);
if (field != null) {
evalThread.Process.TraceMessage("Using backing field for " + method.FullName);
return Value.GetMemberValue(evalThread, thisValue, field, args);
}
}
return AsyncInvokeMethod(evalThread, method, thisValue, args).WaitForResult();
}
static void CheckObject(Value objectInstance, IMember memberInfo)
{
if (memberInfo == null)
throw new DebuggerException("memberInfo is null");
if (!memberInfo.IsStatic) {
if (objectInstance == null)
throw new DebuggerException("No target object specified");
if (objectInstance.IsNull)
throw new GetValueException("Null reference");
// Array.Length can be called
if (objectInstance.Type.Kind == TypeKind.Array)
return;
if (objectInstance.Type.GetDefinition() == null || !objectInstance.Type.GetDefinition().IsDerivedFrom(memberInfo.DeclaringType.GetDefinition()))
throw new GetValueException("Object is not of type " + memberInfo.DeclaringType.FullName);
}
}
/// <exception cref="GetValueException"><c>GetValueException</c>.</exception>
static void MethodInvokeStarter(Eval eval, IMethod method, Value thisValue, Value[] args)
{
List<ICorDebugValue> corArgs = new List<ICorDebugValue>();
args = args ?? new Value[0];
if (args.Length != method.Parameters.Count) {
throw new GetValueException("Invalid parameter count");
}
if (!method.IsStatic) {
if (thisValue == null)
throw new GetValueException("'this' is null");
if (thisValue.IsNull)
throw new GetValueException("Null reference");
corArgs.Add(thisValue.CorValue);
}
for(int i = 0; i < args.Length; i++) {
Value arg = args[i];
IType paramType = method.Parameters[i].Type;
if (!arg.IsNull &&
arg.Type.GetDefinition() != null &&
paramType.GetDefinition() != null &&
!arg.Type.GetDefinition().IsDerivedFrom(paramType.GetDefinition())) {
throw new GetValueException("Inncorrect parameter type. Expected " + paramType.ToString());
}
// It is importatnt to pass the parameter in the correct form (boxed/unboxed)
if (paramType.IsReferenceType == true) {
if (!arg.IsReference)
throw new DebuggerException("Reference expected as method argument");
corArgs.Add(arg.CorValue);
} else {
corArgs.Add(arg.CorGenericValue); // Unbox
}
}
ICorDebugType[] genericArgs = method.GetTypeArguments();
eval.CorEval2.CallParameterizedFunction(
method.ToCorFunction(),
(uint)genericArgs.Length, genericArgs,
(uint)corArgs.Count, corArgs.ToArray()
);
}
/// <summary> Get the value of given member. </summary>
/// <param name="objectInstance">null if member is static</param>
public static Value GetMemberValue(Thread evalThread, Value objectInstance, IMember memberInfo, params Value[] arguments)
{
if (memberInfo is IField) {
if (arguments.Length > 0)
throw new GetValueException("Arguments can not be used for a field");
return GetFieldValue(evalThread, objectInstance, (IField)memberInfo);
} else if (memberInfo is IProperty) {
return GetPropertyValue(evalThread, objectInstance, (IProperty)memberInfo, arguments);
} else if (memberInfo is IMethod) {
return InvokeMethod(evalThread, objectInstance, (IMethod)memberInfo, arguments);
} else if (memberInfo is IEvent) {
string name = memberInfo.Name;
IField f = memberInfo.DeclaringType.GetFields(m => m.Name == name, GetMemberOptions.None).FirstOrDefault();
if (f == null) {
name += "Event";
f = memberInfo.DeclaringType.GetFields(m => m.Name == name, GetMemberOptions.None).FirstOrDefault();
}
if (f == null)
throw new GetValueException("Cannot retrieve event value");
return GetFieldValue(evalThread, objectInstance, f);
}
throw new DebuggerException("Unknown member type: " + memberInfo.GetType());
}
public static Eval AsyncNewObject(Thread evalThread, IMethod constructor, Value[] constructorArguments)
{
ICorDebugType[] typeArgs = constructor.GetTypeArguments();
ICorDebugValue[] ctorArgs = ValuesAsCorDebug(constructorArguments);
return new Eval(
evalThread,
"New object: " + constructor.FullName,
delegate(Eval eval) {
eval.CorEval2.NewParameterizedObject(
constructor.ToCorFunction(),
(uint)typeArgs.Length, typeArgs,
(uint)ctorArgs.Length, ctorArgs);
}
);
}
public static void SetFieldValue(Thread evalThread, Value objectInstance, IField fieldInfo, Value newValue)
{
Value val = GetFieldValue(evalThread, objectInstance, fieldInfo);
if (!newValue.Type.GetDefinition().IsDerivedFrom(fieldInfo.Type.GetDefinition()))
throw new GetValueException("Cannot assign {0} to {1}", newValue.Type.FullName, fieldInfo.Type.FullName);
val.SetValue(evalThread, newValue);
}
/// <summary>
/// Asynchronously invoke the method of an a given object
/// </summary>
public Eval AsyncInvoke(Value objectInstance, Value[] arguments)
{
return Eval.AsyncInvokeMethod(
this,
this.IsStatic ? null : objectInstance,
arguments ?? new Value[0]
);
}
/// <summary> Get the value of given field. </summary>
/// <param name="thread"> Thread to use for thread-local storage </param>
/// <param name="objectInstance">null if field is static</param>
public static Value GetFieldValue(Thread evalThread, Value objectInstance, IField fieldInfo)
{
CheckObject(objectInstance, fieldInfo);
if (fieldInfo.IsStatic && fieldInfo.IsConst) {
return GetLiteralValue(evalThread, (IField)fieldInfo);
} else {
return new Value(evalThread.AppDomain, GetFieldCorValue(evalThread, objectInstance, fieldInfo));
}
}