static TargetObject ImplicitReferenceConversion(MdbEvaluationContext ctx,
TargetClassObject obj,
TargetClassType type)
{
if (obj.Type == type)
{
return(obj);
}
if (obj.Type.HasParent)
{
TargetObject pobj = obj.GetParentObject(ctx.Thread);
if (pobj != null)
{
pobj = ImplicitConversion(ctx, pobj, type);
if (pobj != null)
{
return(pobj);
}
}
}
if (ImplicitReferenceConversionExists(ctx, obj.Type, type))
{
return(obj);
}
return(null);
}
public static TargetObject ImplicitConversion(MdbEvaluationContext ctx,
TargetObject obj, TargetType type)
{
if (obj.Type.Equals(type))
{
return(obj);
}
if (type is TargetObjectType || ObjectUtil.FixTypeName(type.Name) == "System.Object")
{
if (obj.Type.IsByRef)
{
return(obj);
}
return(BoxValue(ctx, obj));
}
if (obj is TargetEnumObject && type is TargetFundamentalType)
{
TargetEnumObject e = (TargetEnumObject)obj;
return(ImplicitConversion(ctx, e.GetValue(ctx.Thread), type));
}
if (type is TargetEnumType)
{
TargetEnumType e = (TargetEnumType)type;
return(ImplicitConversion(ctx, obj, e.Value.Type));
}
if (obj is TargetArrayObject && type.Name == "System.Array")
{
return(obj);
}
if (obj is TargetArrayObject && type is TargetArrayType)
{
TargetArrayObject sa = (TargetArrayObject)obj;
TargetArrayType ta = (TargetArrayType)type;
if (sa.Type.ElementType.Equals(ta.ElementType))
{
return(obj);
}
}
if ((obj is TargetFundamentalObject) && (type is TargetFundamentalType))
{
return(ImplicitFundamentalConversion(
ctx, (TargetFundamentalObject)obj,
(TargetFundamentalType)type));
}
if ((obj is TargetClassObject) && (type is TargetClassType))
{
return(ImplicitReferenceConversion(
ctx, (TargetClassObject)obj,
(TargetClassType)type));
}
return(null);
}
static bool ImplicitReferenceConversionExists(MdbEvaluationContext ctx,
TargetStructType source,
TargetStructType target)
{
if (source == target)
{
return(true);
}
if (source.Module.Name.StartsWith("mscorlib,") && target.Module.Name.StartsWith("mscorlib,"))
{
Type t1 = Type.GetType(source.Name);
Type t2 = Type.GetType(target.Name);
return(t2.IsAssignableFrom(t1));
}
if (!source.HasParent)
{
return(false);
}
TargetStructType parent_type = source.GetParentType(ctx.Thread);
return(ImplicitReferenceConversionExists(ctx, parent_type, target));
}
public static TargetObject ExplicitFundamentalConversion(MdbEvaluationContext ctx,
TargetFundamentalObject obj,
TargetFundamentalType type)
{
TargetObject retval = ImplicitFundamentalConversion(ctx, obj, type);
if (retval != null)
{
return(retval);
}
FundamentalKind tkind = type.FundamentalKind;
try {
object value = obj.GetObject(ctx.Thread);
object new_value = ImplicitFundamentalConversion(value, tkind);
if (new_value == null)
{
return(null);
}
return(type.Language.CreateInstance(ctx.Thread, new_value));
} catch {
return(null);
}
}
public static TargetStructObject ToStructObject(MdbEvaluationContext ctx, TargetObject obj)
{
TargetStructObject sobj = obj as TargetStructObject;
if (sobj != null)
{
return(sobj);
}
TargetObjectObject oobj = obj as TargetObjectObject;
if (oobj != null)
{
return(oobj.GetClassObject(ctx.Thread));
}
TargetArrayObject aobj = obj as TargetArrayObject;
if ((aobj != null) && aobj.HasClassObject)
{
return(aobj.GetClassObject(ctx.Thread));
}
return(null);
}
public static ValueReference CreateIndexerValueReference (MdbEvaluationContext ctx, TargetObject target, TargetObject[] index)
{
TargetFundamentalObject mstr = target as TargetFundamentalObject;
if (mstr != null && mstr.TypeName == "string") {
// Special case for strings
string name = "[" + ctx.Evaluator.TargetObjectToExpression (ctx, index[0]) + "]";
string val = (string) mstr.GetObject (ctx.Thread);
object oo = ctx.Adapter.TargetObjectToObject (ctx, index[0]);
int idx = (int) Convert.ChangeType (oo, typeof(int));
return LiteralValueReference.CreateObjectLiteral (ctx, name, val [idx]);
}
TargetStructObject sob = target as TargetStructObject;
if (sob == null)
return null;
TargetPropertyInfo indexerProp = null;
foreach (MemberReference mem in ObjectUtil.GetTypeMembers (ctx, target.Type, false, true, true, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static)) {
if (mem.Member.IsStatic)
continue;
if (mem.Member is TargetPropertyInfo) {
TargetPropertyInfo prop = (TargetPropertyInfo) mem.Member;
if (prop.CanRead && prop.Getter.ParameterTypes.Length == 1) {
indexerProp = prop;
break;
}
}
}
if (indexerProp != null)
return new IndexerValueReference (ctx, sob, index, indexerProp);
else
return null;
}
public static bool ImplicitConversionExists(MdbEvaluationContext ctx,
TargetType source, TargetType target)
{
if (source.Equals(target))
{
return(true);
}
if (source is TargetArrayType && target.Name == "System.Array")
{
return(true);
}
if (ObjectUtil.FixTypeName(target.Name) == "System.Object")
{
return(true);
}
if (source is TargetArrayType && target is TargetArrayType)
{
TargetArrayType sa = (TargetArrayType)source;
TargetArrayType ta = (TargetArrayType)target;
return(sa.ElementType.Equals(ta.ElementType));
}
if (source is TargetEnumType)
{
TargetEnumType e = (TargetEnumType)source;
if (ImplicitConversionExists(ctx, e.Value.Type, target))
{
return(true);
}
}
if (target is TargetEnumType)
{
TargetEnumType e = (TargetEnumType)target;
if (ImplicitConversionExists(ctx, source, e.Value.Type))
{
return(true);
}
}
if ((source is TargetFundamentalType) && (target is TargetFundamentalType))
{
return(ImplicitFundamentalConversionExists(
(TargetFundamentalType)source,
(TargetFundamentalType)target));
}
if ((source is TargetClassType) && (target is TargetClassType))
{
return(ImplicitReferenceConversionExists(
ctx, (TargetClassType)source,
(TargetClassType)target));
}
return(false);
}
public override void CopyFrom(Mono.Debugging.Evaluation.EvaluationContext gctx)
{
base.CopyFrom(gctx);
MdbEvaluationContext ctx = (MdbEvaluationContext)gctx;
thread = ctx.thread;
frame = ctx.frame;
}
public ML.TargetObject RuntimeInvoke(MdbEvaluationContext ctx, ML.TargetFunctionType function,
ML.TargetStructObject object_argument,
params ML.TargetObject[] param_objects)
{
MethodCall mc = new MethodCall(ctx, function, object_argument, param_objects);
ctx.Adapter.AsyncExecute(mc, ctx.Options.EvaluationTimeout);
return(mc.ReturnValue);
}
static TargetStructObject TryCurrentCast(MdbEvaluationContext ctx, TargetClassObject source, TargetClassType target_type)
{
TargetStructObject current = source.GetCurrentObject(ctx.Thread);
if (current == null)
{
return(null);
}
return(TryParentCast(ctx, current, current.Type, target_type));
}
public static TargetObject ImplicitConversionRequired(MdbEvaluationContext ctx,
TargetObject obj, TargetType type)
{
TargetObject new_obj = ImplicitConversion(ctx, obj, type);
if (new_obj != null)
{
return(new_obj);
}
throw new Exception(string.Format("Cannot implicitly convert `{0}' to `{1}'", obj.Type.Name, type.Name));
}
public static ValueReference CreateIndexerValueReference(MdbEvaluationContext ctx, TargetObject target, TargetObject[] index)
{
TargetFundamentalObject mstr = target as TargetFundamentalObject;
if (mstr != null && mstr.TypeName == "string")
{
// Special case for strings
string name = "[" + ctx.Evaluator.TargetObjectToExpression(ctx, index[0]) + "]";
string val = (string)mstr.GetObject(ctx.Thread);
object oo = ctx.Adapter.TargetObjectToObject(ctx, index[0]);
int idx = (int)Convert.ChangeType(oo, typeof(int));
return(LiteralValueReference.CreateObjectLiteral(ctx, name, val [idx]));
}
TargetStructObject sob = target as TargetStructObject;
if (sob == null)
{
return(null);
}
TargetPropertyInfo indexerProp = null;
foreach (MemberReference mem in ObjectUtil.GetTypeMembers(ctx, target.Type, false, true, true, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static))
{
if (mem.Member.IsStatic)
{
continue;
}
if (mem.Member is TargetPropertyInfo)
{
TargetPropertyInfo prop = (TargetPropertyInfo)mem.Member;
if (prop.CanRead && prop.Getter.ParameterTypes.Length == 1)
{
indexerProp = prop;
break;
}
}
}
if (indexerProp != null)
{
return(new IndexerValueReference(ctx, sob, index, indexerProp));
}
else
{
return(null);
}
}
public static bool TryCast(MdbEvaluationContext ctx, TargetType source, TargetClassType target_type)
{
if (source == target_type)
{
return(true);
}
TargetClassType stype = ToClassType(source);
if (stype == null)
{
return(false);
}
return(TryParentCast(ctx, stype, target_type));
}
static bool TryParentCast(MdbEvaluationContext ctx, TargetStructType source_type, TargetStructType target_type)
{
if (source_type == target_type)
{
return(true);
}
if (!source_type.HasParent)
{
return(false);
}
TargetStructType parent_type = source_type.GetParentType(ctx.Thread);
return(TryParentCast(ctx, parent_type, target_type));
}
static TargetStructObject TryParentCast(MdbEvaluationContext ctx, TargetStructObject source, TargetStructType source_type, TargetStructType target_type)
{
if (source_type == target_type)
{
return(source);
}
if (!source_type.HasParent)
{
return(null);
}
TargetStructType parent_type = source_type.GetParentType(ctx.Thread);
source = TryParentCast(ctx, source, parent_type, target_type);
if (source == null)
{
return(null);
}
return(source.GetParentObject(ctx.Thread) as TargetClassObject);
}
static TargetObject ImplicitFundamentalConversion(MdbEvaluationContext ctx,
TargetFundamentalObject obj,
TargetFundamentalType type)
{
FundamentalKind skind = obj.Type.FundamentalKind;
FundamentalKind tkind = type.FundamentalKind;
if (!ImplicitFundamentalConversionExists(skind, tkind))
{
return(null);
}
object value = obj.GetObject(ctx.Thread);
object new_value = ImplicitFundamentalConversion(value, tkind);
if (new_value == null)
{
return(null);
}
return(type.Language.CreateInstance(ctx.Thread, new_value));
}
public static TargetObject TryCast(MdbEvaluationContext ctx, TargetObject source, TargetClassType target_type)
{
if (source.Type == target_type)
{
return(source);
}
TargetClassObject sobj = ToClassObject(ctx, source);
if (sobj == null)
{
return(null);
}
TargetStructObject result = TryParentCast(ctx, sobj, sobj.Type, target_type);
if (result != null)
{
return(result);
}
return(TryCurrentCast(ctx, sobj, target_type));
}
public static IEnumerable<MemberReference> GetTypeMembers (MdbEvaluationContext ctx, TargetType t, bool includeFields, bool includeProps, bool includeMethods, BindingFlags flags)
{
// Don't use yield in this method because the whole list of members
// must be retrieved before we can do anything with them.
List<MemberReference> members = new List<MemberReference> ();
Dictionary<string,string> foundMethods = new Dictionary<string,string> ();
while (t != null) {
TargetFieldInfo[] fields = null;
TargetPropertyInfo[] properties = null;
TargetMethodInfo[] methods = null;
TargetClass cls = t.HasClassType ? t.ClassType.GetClass (ctx.Thread) : null;
if (cls != null) {
if (includeFields)
fields = cls.GetFields (ctx.Thread);
if (includeProps)
properties = cls.GetProperties (ctx.Thread);
if (includeMethods)
methods = cls.GetMethods (ctx.Thread);
}
else {
TargetClassType ct = t as TargetClassType;
if (ct == null && t.HasClassType)
ct = t.ClassType;
if (ct != null) {
if (includeFields)
fields = ct.Fields;
if (includeProps)
properties = ct.Properties;
if (includeMethods)
methods = ct.Methods;
}
}
if (fields != null) {
foreach (TargetFieldInfo field in fields) {
if (field.IsCompilerGenerated)
continue;
if (field.Accessibility == TargetMemberAccessibility.Public && (flags & BindingFlags.Public) == 0)
continue;
if (field.Accessibility != TargetMemberAccessibility.Public && (flags & BindingFlags.NonPublic) == 0)
continue;
if (field.IsStatic && (flags & BindingFlags.Static) == 0)
continue;
if (!field.IsStatic && (flags & BindingFlags.Instance) == 0)
continue;
members.Add (new MemberReference (field, t));
}
}
if (properties != null) {
foreach (TargetPropertyInfo prop in properties) {
if (prop.Accessibility == TargetMemberAccessibility.Public && (flags & BindingFlags.Public) == 0)
continue;
if (prop.Accessibility != TargetMemberAccessibility.Public && (flags & BindingFlags.NonPublic) == 0)
continue;
if (prop.IsStatic && (flags & BindingFlags.Static) == 0)
continue;
if (!prop.IsStatic && (flags & BindingFlags.Instance) == 0)
continue;
members.Add (new MemberReference (prop, t));
}
}
if (methods != null) {
foreach (TargetMethodInfo met in methods) {
if (met.Accessibility == TargetMemberAccessibility.Public && (flags & BindingFlags.Public) == 0)
continue;
if (met.Accessibility != TargetMemberAccessibility.Public && (flags & BindingFlags.NonPublic) == 0)
continue;
if (met.IsStatic && (flags & BindingFlags.Static) == 0)
continue;
if (!met.IsStatic && (flags & BindingFlags.Instance) == 0)
continue;
string sig = met.FullName;
if (!foundMethods.ContainsKey (sig)) {
foundMethods [sig] = sig;
members.Add (new MemberReference (met, t));
}
}
}
TargetStructType type = t as TargetStructType;
if (type != null && type.HasParent && (flags & BindingFlags.DeclaredOnly) == 0)
t = type.GetParentType (ctx.Thread);
else
break;
}
return members;
}
static MemberReference OverloadResolve (MdbEvaluationContext ctx, string methodName, TargetType[] argtypes, List<MemberReference> candidates, bool throwIfNotFound)
{
// Ok, no we need to find an exact match.
MemberReference match = null;
int bestCount = -1;
bool repeatedBestCount = false;
foreach (MemberReference method in candidates) {
string error;
int matchCount;
TargetFunctionType func;
if (method.Member is TargetMethodInfo)
func = (TargetFunctionType) ((TargetMethodInfo) method.Member).Type;
else
func = (TargetFunctionType) ((TargetPropertyInfo) method.Member).Getter;
if (!IsApplicable (ctx, func, argtypes, out error, out matchCount))
continue;
if (matchCount == bestCount) {
repeatedBestCount = true;
} else if (matchCount > bestCount) {
match = method;
bestCount = matchCount;
repeatedBestCount = false;
}
}
if (match == null) {
if (!throwIfNotFound)
return null;
if (methodName != null)
throw new EvaluatorException ("Invalid arguments for method `{0}'.", methodName);
else
throw new EvaluatorException ("Invalid arguments for indexer.");
}
if (repeatedBestCount) {
// If there is an ambiguous match, just pick the first match. If the user was expecting
// something else, he can provide more specific arguments
/* if (!throwIfNotFound)
return null;
if (methodName != null)
throw new EvaluatorException ("Ambiguous method `{0}'; need to use full name", methodName);
else
throw new EvaluatorException ("Ambiguous arguments for indexer.", methodName);
*/ }
return match;
}
public static TargetObject Cast(MdbEvaluationContext ctx, TargetObject obj, TargetType targetType)
{
obj = ObjectUtil.GetRealObject(ctx, obj);
if (obj.Type == targetType)
{
return(obj);
}
if (targetType is TargetObjectType || ObjectUtil.FixTypeName(targetType.Name) == "System.Object")
{
if (obj.Type.IsByRef)
{
return(obj);
}
return(BoxValue(ctx, obj));
}
if (targetType is TargetPointerType)
{
throw new NotSupportedException();
}
if (targetType is TargetFundamentalType)
{
TargetFundamentalObject fobj = obj as TargetFundamentalObject;
if (fobj == null)
{
throw new NotSupportedException();
}
TargetFundamentalType ftype = targetType as TargetFundamentalType;
TargetObject ob = ExplicitFundamentalConversion(ctx, fobj, ftype);
if (ob == null)
{
throw new NotSupportedException();
}
return(ob);
}
if (targetType is TargetNullableType)
{
TargetNullableType ntype = (TargetNullableType)targetType;
if (obj.Kind == TargetObjectKind.Null)
{
return(obj);
}
else if (obj.Kind != TargetObjectKind.Nullable)
{
return(ImplicitConversion(ctx, obj, ntype.ElementType));
}
TargetNullableType ntype2 = (TargetNullableType)obj.Type;
if (ImplicitConversionExists(ctx, ntype2.ElementType, ntype.ElementType))
{
return(obj);
}
}
TargetClassType ctype = ToClassType(targetType);
TargetClassObject source = ToClassObject(ctx, obj);
if (source == null)
{
throw new Exception(string.Format("Variable is not a class type."));
}
return(TryCast(ctx, source, ctype));
}
static TargetObject BoxValue(MdbEvaluationContext ctx, TargetObject fobj)
{
return(ctx.Frame.Language.CreateBoxedObject(ctx.Thread, fobj));
}
public int InsertBreakEvent(DL.BreakEvent be, bool enable)
{
CancelRuntimeInvokes();
DL.Breakpoint bp = be as DL.Breakpoint;
MD.Event ev = null;
if (bp != null)
{
MD.SourceLocation location = new MD.SourceLocation(bp.FileName, bp.Line);
MD.SourceBreakpoint sbp = new MD.SourceBreakpoint(session, ThreadGroup.Global, location);
mdbAdaptor.InitializeBreakpoint(sbp);
session.AddEvent(sbp);
ev = sbp;
}
else if (be is Catchpoint)
{
lock (pendingCatchpoints) {
Catchpoint cp = (Catchpoint)be;
ML.TargetType exc = null;
if (process != null)
{
foreach (Module mod in process.Modules)
{
exc = mod.Language.LookupType(cp.ExceptionName);
if (exc != null)
{
break;
}
}
}
if (exc != null)
{
ev = session.InsertExceptionCatchPoint(process.MainThread, ThreadGroup.Global, exc);
}
else
{
pendingCatchpoints.Add(cp);
return(-1);
}
}
}
ev.IsEnabled = enable;
if (!initializing)
{
lock (debugger) {
mdbAdaptor.ActivateEvent(ev);
}
}
if (bp != null && !running && !initializing && activeThread.CurrentFrame != null && !string.IsNullOrEmpty(bp.ConditionExpression) && bp.BreakIfConditionChanges)
{
// Initial expression evaluation
MdbEvaluationContext ctx = new MdbEvaluationContext(activeThread, activeThread.CurrentFrame, null, SessionOptions.EvaluationOptions);
ML.TargetObject ob = EvaluateExp(ctx, bp.ConditionExpression);
if (ob != null)
{
lastConditionValue [ev.Index] = evaluator.TargetObjectToExpression(ctx, ob).Value;
}
}
events [ev.Index] = be;
return(ev.Index);
}
static bool TryParentCast (MdbEvaluationContext ctx, TargetStructType source_type, TargetStructType target_type)
{
if (source_type == target_type)
return true;
if (!source_type.HasParent)
return false;
TargetStructType parent_type = source_type.GetParentType (ctx.Thread);
return TryParentCast (ctx, parent_type, target_type);
}
static TargetStructObject TryCurrentCast (MdbEvaluationContext ctx, TargetClassObject source, TargetClassType target_type)
{
TargetStructObject current = source.GetCurrentObject (ctx.Thread);
if (current == null)
return null;
return TryParentCast (ctx, current, current.Type, target_type);
}
static TargetObject BoxValue (MdbEvaluationContext ctx, TargetObject fobj)
{
return ctx.Frame.Language.CreateBoxedObject (ctx.Thread, fobj);
}
public static TargetObject Cast (MdbEvaluationContext ctx, TargetObject obj, TargetType targetType)
{
obj = ObjectUtil.GetRealObject (ctx, obj);
if (obj.Type == targetType)
return obj;
if (targetType is TargetObjectType || ObjectUtil.FixTypeName (targetType.Name) == "System.Object") {
if (obj.Type.IsByRef)
return obj;
return BoxValue (ctx, obj);
}
if (targetType is TargetPointerType)
throw new NotSupportedException ();
if (targetType is TargetFundamentalType) {
TargetFundamentalObject fobj = obj as TargetFundamentalObject;
if (fobj == null)
throw new NotSupportedException ();
TargetFundamentalType ftype = targetType as TargetFundamentalType;
TargetObject ob = ExplicitFundamentalConversion (ctx, fobj, ftype);
if (ob == null)
throw new NotSupportedException ();
return ob;
}
if (targetType is TargetNullableType) {
TargetNullableType ntype = (TargetNullableType) targetType;
if (obj.Kind == TargetObjectKind.Null)
return obj;
else if (obj.Kind != TargetObjectKind.Nullable)
return ImplicitConversion (ctx, obj, ntype.ElementType);
TargetNullableType ntype2 = (TargetNullableType) obj.Type;
if (ImplicitConversionExists (ctx, ntype2.ElementType, ntype.ElementType))
return obj;
}
TargetClassType ctype = ToClassType (targetType);
TargetClassObject source = ToClassObject (ctx, obj);
if (source == null)
throw new Exception (string.Format ("Variable is not a class type."));
return TryCast (ctx, source, ctype);
}
public ArrayAdaptor (MdbEvaluationContext ctx, TargetArrayObject array)
{
this.ctx = ctx;
this.array = array;
}
static TargetStructObject TryParentCast (MdbEvaluationContext ctx, TargetStructObject source, TargetStructType source_type, TargetStructType target_type)
{
if (source_type == target_type)
return source;
if (!source_type.HasParent)
return null;
TargetStructType parent_type = source_type.GetParentType (ctx.Thread);
source = TryParentCast (ctx, source, parent_type, target_type);
if (source == null)
return null;
return source.GetParentObject (ctx.Thread) as TargetClassObject;
}
public TargetObject GetValue (MdbEvaluationContext ctx, TargetStructObject thisObj)
{
if (Member is TargetPropertyInfo) {
TargetPropertyInfo prop = (TargetPropertyInfo) Member;
return ObjectUtil.GetRealObject (ctx, Server.Instance.RuntimeInvoke (ctx, prop.Getter, thisObj));
}
else if (Member is TargetFieldInfo) {
TargetFieldInfo field = (TargetFieldInfo) Member;
if (field.HasConstValue)
return ctx.Frame.Language.CreateInstance (ctx.Thread, field.ConstValue);
TargetClass cls = DeclaringType.ClassType.GetClass (ctx.Thread);
return ObjectUtil.GetRealObject (ctx, cls.GetField (ctx.Thread, thisObj, field));
}
else {
TargetMethodInfo met = (TargetMethodInfo) Member;
return ObjectUtil.GetRealObject (ctx, Server.Instance.RuntimeInvoke (ctx, met.Type, thisObj));
}
}
public static TargetObject TryCast (MdbEvaluationContext ctx, TargetObject source, TargetClassType target_type)
{
if (source.Type == target_type)
return source;
TargetClassObject sobj = ToClassObject (ctx, source);
if (sobj == null)
return null;
TargetStructObject result = TryParentCast (ctx, sobj, sobj.Type, target_type);
if (result != null)
return result;
return TryCurrentCast (ctx, sobj, target_type);
}
object FindType (MdbEvaluationContext ctx, string typeName)
{
foreach (object typeDefinition in GetAllTypeDefinitions (ctx, true)) {
string fullName = (string) GetProp (typeDefinition, "FullName");
if (fullName == typeName)
return typeDefinition;
}
return null;
}
public static bool TryCast (MdbEvaluationContext ctx, TargetType source, TargetClassType target_type)
{
if (source == target_type)
return true;
TargetClassType stype = ToClassType (source);
if (stype == null)
return false;
return TryParentCast (ctx, stype, target_type);
}
public static TargetStructObject GetTypeOf (MdbEvaluationContext ctx, string typeName)
{
ctx.AssertTargetInvokeAllowed ();
TargetType tt = ctx.Frame.Language.LookupType ("System.Type");
if (tt == null)
return null;
TargetObject tn = ctx.Frame.Language.CreateInstance (ctx.Thread, ObjectUtil.FixTypeName (typeName));
TargetObject res = CallStaticMethod (ctx, "GetType", tt, tn);
return (TargetStructObject) ctx.GetRealObject (res);
}
bool BreakEventCheck(MD.TargetEventArgs args)
{
MD.StackFrame frame = args.Frame;
if (!(args.Data is int))
{
return(true);
}
int eventHandle = (int)args.Data;
DL.BreakEvent be;
if (!events.TryGetValue(eventHandle, out be))
{
return(true);
}
// Check hit count
if (be.HitCount > 0)
{
be.HitCount--;
DispatchEvent(delegate {
NotifyBreakEventUpdate(eventHandle, be.HitCount, null);
});
return(false);
}
MdbEvaluationContext ctx = new MdbEvaluationContext(frame.Thread, frame, null, SessionOptions.EvaluationOptions);
DL.Breakpoint bp = be as DL.Breakpoint;
if (bp != null && !string.IsNullOrEmpty(bp.ConditionExpression))
{
ML.TargetObject val = EvaluateExp(ctx, bp.ConditionExpression);
if (val == null)
{
return(false);
}
if (bp.BreakIfConditionChanges)
{
string current = evaluator.TargetObjectToExpression(ctx, val).Value;
string last;
bool found = lastConditionValue.TryGetValue(eventHandle, out last);
lastConditionValue [eventHandle] = current;
if (!found || last == current)
{
return(false);
}
}
else
{
ML.TargetFundamentalObject fob = val as ML.TargetFundamentalObject;
if (fob == null)
{
return(false);
}
object ob = fob.GetObject(frame.Thread);
if (!(ob is bool) || !(bool)ob)
{
return(false);
}
}
}
switch (be.HitAction)
{
case HitAction.Break:
return(true);
case HitAction.CustomAction:
return(controller.OnCustomBreakpointAction(be.CustomActionId, eventHandle));
case HitAction.PrintExpression:
if (string.IsNullOrEmpty(be.TraceExpression) || frame == null)
{
return(false);
}
ML.TargetObject val = EvaluateExp(ctx, be.TraceExpression);
if (val != null)
{
string str = evaluator.TargetObjectToString(ctx, val);
DispatchEvent(delegate {
NotifyBreakEventUpdate(eventHandle, -1, str);
});
}
return(false);
}
return(false);
}
public static TargetObject CallStaticMethod (MdbEvaluationContext ctx, string name,
string typeName,
params TargetObject[] args)
{
return CallStaticMethod (ctx, name, ctx.Frame.Language.LookupType (typeName), args);
}
static TargetObject ImplicitFundamentalConversion (MdbEvaluationContext ctx,
TargetFundamentalObject obj,
TargetFundamentalType type)
{
FundamentalKind skind = obj.Type.FundamentalKind;
FundamentalKind tkind = type.FundamentalKind;
if (!ImplicitFundamentalConversionExists (skind, tkind))
return null;
object value = obj.GetObject (ctx.Thread);
object new_value = ImplicitFundamentalConversion (value, tkind);
if (new_value == null)
return null;
return type.Language.CreateInstance (ctx.Thread, new_value);
}
public static MemberReference OverloadResolve (MdbEvaluationContext ctx, string methodName, TargetType type, TargetType[] argtypes, bool allowInstance, bool allowStatic, bool throwIfNotFound)
{
List<MemberReference> candidates = new List<MemberReference> ();
if (methodName == ".ctor") {
TargetClassType ct = type as TargetClassType;
if (ct == null && type.HasClassType)
ct = type.ClassType;
foreach (TargetMethodInfo met in ct.Constructors) {
if (met.Type.ParameterTypes.Length == argtypes.Length)
candidates.Add (new MemberReference (met, type));
}
}
else {
foreach (MemberReference mem in ObjectUtil.GetTypeMembers (ctx, type, false, false, true, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static)) {
TargetMethodInfo met = (TargetMethodInfo) mem.Member;
if (met.Name == methodName && met.Type.ParameterTypes.Length == argtypes.Length && (met.IsStatic && allowStatic || !met.IsStatic && allowInstance))
candidates.Add (mem);
}
}
if (candidates.Count == 1) {
TargetFunctionType func = (TargetFunctionType) ((TargetMethodInfo) candidates [0].Member).Type;
string error;
int matchCount;
if (IsApplicable (ctx, func, argtypes, out error, out matchCount))
return candidates [0];
if (throwIfNotFound)
throw new EvaluatorException ("Invalid arguments for method `{0}': {1}", methodName, error);
else
return null;
}
if (candidates.Count == 0) {
if (throwIfNotFound)
throw new EvaluatorException ("Method `{0}' not found in type `{1}'.", methodName, type.Name);
else
return null;
}
return OverloadResolve (ctx, methodName, argtypes, candidates, throwIfNotFound);
}
public MethodCall (MdbEvaluationContext ctx, TargetFunctionType function, TargetStructObject object_argument, TargetObject[] param_objects)
{
this.ctx = ctx;
this.function = function;
this.object_argument = object_argument;
this.param_objects = param_objects;
}
public static TargetObject ExplicitFundamentalConversion (MdbEvaluationContext ctx,
TargetFundamentalObject obj,
TargetFundamentalType type)
{
TargetObject retval = ImplicitFundamentalConversion (ctx, obj, type);
if (retval != null)
return retval;
FundamentalKind tkind = type.FundamentalKind;
try {
object value = obj.GetObject (ctx.Thread);
object new_value = ImplicitFundamentalConversion (value, tkind);
if (new_value == null)
return null;
return type.Language.CreateInstance (ctx.Thread, new_value);
} catch {
return null;
}
}
public IEnumerable<object> GetAllTypeDefinitions (MdbEvaluationContext ctx, bool includePrivate)
{
HashSet<object> visited = new HashSet<object> ();
object methodHandle = ctx.Frame.Method.MethodHandle;
if (methodHandle != null && methodHandle.GetType ().FullName == "Mono.Cecil.MethodDefinition") {
object declaringType = GetProp (methodHandle, "DeclaringType");
object module = GetProp (declaringType, "Module");
object assembly = GetProp (module, "Assembly");
object resolver = GetProp (module, "AssemblyResolver");
foreach (object typeDefinition in GetAllTypeDefinitions (includePrivate, resolver, visited, assembly))
yield return typeDefinition;
}
}
static bool ImplicitReferenceConversionExists (MdbEvaluationContext ctx,
TargetStructType source,
TargetStructType target)
{
if (source == target)
return true;
if (source.Module.Name.StartsWith ("mscorlib,") && target.Module.Name.StartsWith ("mscorlib,")) {
Type t1 = Type.GetType (source.Name);
Type t2 = Type.GetType (target.Name);
return t2.IsAssignableFrom (t1);
}
if (!source.HasParent)
return false;
TargetStructType parent_type = source.GetParentType (ctx.Thread);
return ImplicitReferenceConversionExists (ctx, parent_type, target);
}
public static TargetObject CallMethod (MdbEvaluationContext ctx, string name,
TargetObject target,
params TargetObject[] args)
{
#if REFLECTION_INVOKE
if (target is TargetGenericInstanceObject || !(target is TargetStructObject)) {
// Calling methods on generic objects is suprisingly not supported
// by the debugger. As a workaround we do the call using reflection.
if (name != "ToString" || args.Length != 0) {
GetTypeOf (ctx, "System.Convert");
TargetType cc = ctx.Frame.Language.LookupType ("System.Convert");
SR.BindingFlags sf = SR.BindingFlags.InvokeMethod | SR.BindingFlags.Static | SR.BindingFlags.FlattenHierarchy | SR.BindingFlags.Public | SR.BindingFlags.NonPublic;
CallMethodWithReflection (ctx, sf, "ToString", cc, null, target);
}
SR.BindingFlags f = SR.BindingFlags.InvokeMethod | SR.BindingFlags.Instance | SR.BindingFlags.Public | SR.BindingFlags.NonPublic;
return CallMethodWithReflection (ctx, f, name, target.Type, target, args);
}
#endif
ctx.AssertTargetInvokeAllowed ();
TargetType[] types = new TargetType [args.Length];
for (int n=0; n<types.Length; n++)
types [n] = args [n].Type;
TargetStructObject starget = (TargetStructObject) target;
MemberReference mem = OverloadResolve (ctx, name, starget.Type, types, true, false, true);
TargetFunctionType function = (TargetFunctionType) ((TargetMethodInfo) mem.Member).Type;
while (starget.Type != mem.DeclaringType) {
TargetStructObject par = starget.GetParentObject (ctx.Thread);
if (par != null)
starget = par;
else
break;
}
TargetMethodSignature sig = function.GetSignature (ctx.Thread);
TargetObject[] objs = new TargetObject [args.Length];
for (int i = 0; i < args.Length; i++) {
objs [i] = TargetObjectConvert.ImplicitConversionRequired (
ctx, args [i], sig.ParameterTypes [i]);
}
return Server.Instance.RuntimeInvoke (ctx, function, starget, objs);
}
static TargetObject ImplicitReferenceConversion (MdbEvaluationContext ctx,
TargetClassObject obj,
TargetClassType type)
{
if (obj.Type == type)
return obj;
if (obj.Type.HasParent) {
TargetObject pobj = obj.GetParentObject (ctx.Thread);
if (pobj != null) {
pobj = ImplicitConversion (ctx, pobj, type);
if (pobj != null)
return pobj;
}
}
if (ImplicitReferenceConversionExists (ctx, obj.Type, type))
return obj;
return null;
}
public static TargetObject CallStaticMethod (MdbEvaluationContext ctx, string name,
TargetType type,
params TargetObject[] args)
{
#if REFLECTION_INVOKE
if (type is TargetGenericInstanceType || !(type is TargetStructType)) {
// Calling methods on generic objects is suprisingly not supported
// by the debugger. As a workaround we do the call using reflection.
SR.BindingFlags f = SR.BindingFlags.InvokeMethod | SR.BindingFlags.Static | SR.BindingFlags.Public | SR.BindingFlags.NonPublic;
return CallMethodWithReflection (ctx, f, name, type, null, args);
}
#endif
ctx.AssertTargetInvokeAllowed ();
TargetType[] types = new TargetType [args.Length];
for (int n=0; n<types.Length; n++)
types [n] = args [n].Type;
MemberReference mem = OverloadResolve (ctx, name, type, types, false, true, true);
TargetFunctionType function = (TargetFunctionType) ((TargetMethodInfo) mem.Member).Type;
TargetMethodSignature sig = function.GetSignature (ctx.Thread);
TargetObject[] objs = new TargetObject [args.Length];
for (int i = 0; i < args.Length; i++) {
objs [i] = TargetObjectConvert.ImplicitConversionRequired (ctx, args [i], sig.ParameterTypes [i]);
}
return Server.Instance.RuntimeInvoke (ctx, function, null, objs);
}
public static bool ImplicitConversionExists (MdbEvaluationContext ctx,
TargetType source, TargetType target)
{
if (source.Equals (target))
return true;
if (source is TargetArrayType && target.Name == "System.Array")
return true;
if (ObjectUtil.FixTypeName (target.Name) == "System.Object")
return true;
if (source is TargetArrayType && target is TargetArrayType) {
TargetArrayType sa = (TargetArrayType) source;
TargetArrayType ta = (TargetArrayType) target;
return sa.ElementType.Equals (ta.ElementType);
}
if (source is TargetEnumType) {
TargetEnumType e = (TargetEnumType) source;
if (ImplicitConversionExists (ctx, e.Value.Type, target))
return true;
}
if (target is TargetEnumType) {
TargetEnumType e = (TargetEnumType) target;
if (ImplicitConversionExists (ctx, source, e.Value.Type))
return true;
}
if ((source is TargetFundamentalType) && (target is TargetFundamentalType))
return ImplicitFundamentalConversionExists (
(TargetFundamentalType) source,
(TargetFundamentalType) target);
if ((source is TargetClassType) && (target is TargetClassType))
return ImplicitReferenceConversionExists (
ctx, (TargetClassType) source,
(TargetClassType) target);
return false;
}
static bool IsApplicable (MdbEvaluationContext ctx, TargetFunctionType method, TargetType[] types, out string error, out int matchCount)
{
TargetMethodSignature sig = method.GetSignature (ctx.Thread);
matchCount = 0;
for (int i = 0; i < types.Length; i++) {
TargetType param_type = sig.ParameterTypes [i];
if (param_type == types [i]) {
matchCount++;
continue;
}
if (TargetObjectConvert.ImplicitConversionExists (ctx, types [i], param_type))
continue;
error = String.Format (
"Argument {0}: Cannot implicitly convert `{1}' to `{2}'",
i, types [i].Name, param_type.Name);
return false;
}
error = null;
return true;
}
public static TargetObject ImplicitConversion (MdbEvaluationContext ctx,
TargetObject obj, TargetType type)
{
if (obj.Type.Equals (type))
return obj;
if (type is TargetObjectType || ObjectUtil.FixTypeName (type.Name) == "System.Object") {
if (obj.Type.IsByRef)
return obj;
return BoxValue (ctx, obj);
}
if (obj is TargetEnumObject && type is TargetFundamentalType) {
TargetEnumObject e = (TargetEnumObject) obj;
return ImplicitConversion (ctx, e.GetValue (ctx.Thread), type);
}
if (type is TargetEnumType) {
TargetEnumType e = (TargetEnumType) type;
return ImplicitConversion (ctx, obj, e.Value.Type);
}
if (obj is TargetArrayObject && type.Name == "System.Array") {
return obj;
}
if (obj is TargetArrayObject && type is TargetArrayType) {
TargetArrayObject sa = (TargetArrayObject) obj;
TargetArrayType ta = (TargetArrayType) type;
if (sa.Type.ElementType.Equals (ta.ElementType))
return obj;
}
if ((obj is TargetFundamentalObject) && (type is TargetFundamentalType))
return ImplicitFundamentalConversion (
ctx, (TargetFundamentalObject) obj,
(TargetFundamentalType) type);
if ((obj is TargetClassObject) && (type is TargetClassType)) {
return ImplicitReferenceConversion (
ctx, (TargetClassObject) obj,
(TargetClassType) type);
}
return null;
}
public static TargetObject GetRealObject (MdbEvaluationContext ctx, TargetObject obj)
{
if (obj == null)
return null;
try {
switch (obj.Kind) {
case TargetObjectKind.Array:
case TargetObjectKind.Fundamental:
return obj;
case TargetObjectKind.Struct:
case TargetObjectKind.GenericInstance:
case TargetObjectKind.Class:
TargetStructObject co = obj as TargetStructObject;
if (co == null)
return null;
TargetObject res = co.GetCurrentObject (ctx.Thread);
return res ?? obj;
case TargetObjectKind.Object:
TargetObjectObject oob = obj as TargetObjectObject;
if (oob == null)
return null;
if (oob.Type.CanDereference)
return oob.GetDereferencedObject (ctx.Thread);
else
return oob;
}
}
catch {
// Ignore
}
return obj;
}
public static TargetObject ImplicitConversionRequired (MdbEvaluationContext ctx,
TargetObject obj, TargetType type)
{
TargetObject new_obj = ImplicitConversion (ctx, obj, type);
if (new_obj != null)
return new_obj;
throw new Exception (string.Format ("Cannot implicitly convert `{0}' to `{1}'", obj.Type.Name, type.Name));
}
public static TargetStructObject ToStructObject (MdbEvaluationContext ctx, TargetObject obj)
{
TargetStructObject sobj = obj as TargetStructObject;
if (sobj != null)
return sobj;
TargetObjectObject oobj = obj as TargetObjectObject;
if (oobj != null)
return oobj.GetClassObject (ctx.Thread);
TargetArrayObject aobj = obj as TargetArrayObject;
if ((aobj != null) && aobj.HasClassObject)
return aobj.GetClassObject (ctx.Thread);
return null;
}
public ArrayAdaptor(MdbEvaluationContext ctx, TargetArrayObject array)
{
this.ctx = ctx;
this.array = array;
}
