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|
//
// MdbObjectValueAdaptor.cs
//
// Author:
// Lluis Sanchez Gual <lluis@novell.com>
//
// Copyright (c) 2009 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Text;
using System.Collections;
using ST = System.Threading;
using System.Reflection;
using System.Collections.Generic;
using System.Diagnostics;
using Mono.Debugging.Evaluation;
using Mono.Debugger.Languages;
using Mono.Debugger;
using Mono.Debugging.Client;
using Mono.Debugging.Backend;
namespace DebuggerServer
{
public class MdbObjectValueAdaptor : ObjectValueAdaptor
{
public override string CallToString (EvaluationContext gctx, object obj)
{
if (!gctx.Options.AllowTargetInvoke)
return GetValueTypeName (gctx, obj);
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
TargetObject retval = CallMethod (ctx, "ToString", (TargetStructObject) obj);
object s = ((TargetFundamentalObject) retval).GetObject (ctx.Thread);
return s != null ? s.ToString () : "";
}
public override object Cast (EvaluationContext gctx, object obj, object targetType)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return TargetObjectConvert.Cast (ctx, (TargetObject) obj, (TargetType) targetType);
}
public override object TryCast (EvaluationContext gctx, object val, object type)
{
MdbEvaluationContext ctx = (MdbEvaluationContext)gctx;
TargetObject tval = ctx.GetRealObject (val);
if (type is TargetObjectType)
return val;
if (type is TargetClassType)
return TargetObjectConvert.TryCast (ctx, tval, (TargetClassType)type);
else
return null;
}
public override object TargetObjectToObject (EvaluationContext gctx, object vobj)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
TargetObject obj = ctx.GetRealObject (vobj);
switch (obj.Kind) {
case Mono.Debugger.Languages.TargetObjectKind.Array:
TargetArrayObject arr = obj as TargetArrayObject;
if (arr == null)
return null;
StringBuilder tn = new StringBuilder (arr.Type.ElementType.Name);
tn.Append ("[");
TargetArrayBounds ab = arr.GetArrayBounds (ctx.Thread);
if (ab.IsMultiDimensional) {
for (int n=0; n<ab.Rank; n++) {
if (n>0)
tn.Append (',');
tn.Append (ab.UpperBounds [n] - ab.LowerBounds [n] + 1);
}
}
else if (!ab.IsUnbound) {
tn.Append (ab.Length.ToString ());
}
tn.Append ("]");
return new LiteralExp (tn.ToString ());
case TargetObjectKind.GenericInstance:
case TargetObjectKind.Struct:
case TargetObjectKind.Class:
TypeDisplayData tdata = GetTypeDisplayData (ctx, obj.Type);
TargetStructObject co = obj as TargetStructObject;
if (co == null)
return null;
if (ctx.Options.AllowTargetInvoke) {
if (co.TypeName == "System.Decimal")
return new LiteralExp (CallToString (ctx, co));
if (tdata.ValueDisplayString != null && ctx.Options.AllowDisplayStringEvaluation)
return new LiteralExp (EvaluateDisplayString (ctx, co, tdata.ValueDisplayString));
}
// Return the type name
if (tdata.TypeDisplayString != null)
return new LiteralExp ("{" + tdata.TypeDisplayString + "}");
return new LiteralExp ("{" + obj.Type.Name + "}");
case TargetObjectKind.Enum:
TargetEnumObject eob = (TargetEnumObject) obj;
return new LiteralExp (Server.Instance.Evaluator.TargetObjectToString (ctx, eob.GetValue (ctx.Thread)));
case TargetObjectKind.Fundamental:
TargetFundamentalObject fob = obj as TargetFundamentalObject;
if (fob == null)
return "null";
return fob.GetObject (ctx.Thread);
case TargetObjectKind.Pointer:
if (IntPtr.Size < 8)
return new IntPtr ((int)obj.GetAddress (ctx.Thread).Address);
else
return new IntPtr (obj.GetAddress (ctx.Thread).Address);
case TargetObjectKind.Object:
TargetObjectObject oob = obj as TargetObjectObject;
if (oob == null)
return null;
else
return new LiteralExp ("{" + oob.TypeName + "}");
case TargetObjectKind.Nullable:
TargetNullableObject nob = (TargetNullableObject) obj;
if (nob.HasValue (ctx.Thread))
return TargetObjectToObject (ctx, nob.GetValue (ctx.Thread));
else
return null;
}
return new LiteralExp ("?");
}
public override bool HasMethod (EvaluationContext gctx, object targetType, string methodName, object[] argTypes, BindingFlags flags)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
if (argTypes == null) {
foreach (MemberReference mm in ObjectUtil.GetTypeMembers (ctx, (TargetType) targetType, false, false, true, flags | BindingFlags.Public | BindingFlags.NonPublic)) {
TargetMethodInfo met = (TargetMethodInfo) mm.Member;
if (met.Name == methodName)
return true;
}
return false;
}
TargetStructType stype = targetType as TargetStructType;
if (stype == null)
return false;
TargetType[] types = new TargetType [argTypes.Length];
Array.Copy (argTypes, types, argTypes.Length);
MemberReference mem;
mem = OverloadResolve (ctx, methodName, stype, types, (flags & BindingFlags.Instance) != 0, (flags & BindingFlags.Static) != 0, false);
return mem != null;
}
public override object RuntimeInvoke (EvaluationContext gctx, object targetType, object target, string methodName, object[] argTypes, object[] argValues)
{
gctx.AssertTargetInvokeAllowed ();
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
TargetObject[] lst = new TargetObject [argValues.Length];
Array.Copy (argValues, lst, argValues.Length);
if (target != null)
return CallMethod (ctx, methodName, (TargetObject) target, lst);
else
return CallStaticMethod (ctx, methodName, (TargetType) targetType, lst);
}
protected override TypeDisplayData OnGetTypeDisplayData (EvaluationContext gctx, object type)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
TargetType tt = (TargetType) type;
if (tt.HasClassType) {
TypeDisplayData data = new TypeDisplayData ();
if (tt.ClassType.DebuggerTypeProxyAttribute != null) {
data.ProxyType = tt.ClassType.DebuggerTypeProxyAttribute.ProxyTypeName;
}
if (tt.ClassType.DebuggerDisplayAttribute != null) {
data.NameDisplayString = tt.ClassType.DebuggerDisplayAttribute.Name;
data.TypeDisplayString = tt.ClassType.DebuggerDisplayAttribute.Type;
data.ValueDisplayString = tt.ClassType.DebuggerDisplayAttribute.Value;
}
foreach (MemberReference mem in ObjectUtil.GetTypeMembers (ctx, tt, true, true, true, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static)) {
if (mem.Member.DebuggerBrowsableState.HasValue) {
if (data.MemberData == null)
data.MemberData = new Dictionary<string, DebuggerBrowsableState> ();
data.MemberData [mem.Member.Name] = mem.Member.DebuggerBrowsableState.Value;
}
}
return data;
}
return base.OnGetTypeDisplayData (ctx, type);
}
public override bool IsPrimitive (EvaluationContext gctx, object val)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return ctx.GetRealObject (val) is TargetFundamentalObject;
}
public override bool IsEnum (EvaluationContext gctx, object val)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return ctx.GetRealObject (val) is TargetEnumObject;
}
public override bool IsNull (EvaluationContext gctx, object val)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
TargetObject ob = ctx.GetRealObject (val);
if (ob.Kind == TargetObjectKind.Null)
return true;
return (ob.HasAddress && ob.GetAddress (ctx.Thread).IsNull);
}
public override bool IsClass (object type)
{
return type is TargetClassType;
}
public override bool IsClassInstance (EvaluationContext gctx, object val)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return ctx.GetRealObject (val) is TargetStructObject;
}
public override bool IsArray (EvaluationContext gctx, object val)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return ctx.GetRealObject (val) is TargetArrayObject;
}
public override object GetValueType (EvaluationContext gctx, object val)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return ctx.GetRealObject (val).Type;
}
public override string GetTypeName (EvaluationContext ctx, object val)
{
return ObjectUtil.FixTypeName (((TargetType)val).Name);
}
public override object GetType (EvaluationContext ctx, string name, object[] typeArgs)
{
MdbEvaluationContext mctx = (MdbEvaluationContext) ctx;
name = name.Replace ('+','/');
return mctx.Frame.Language.LookupType (name);
}
public override object GetBaseType (EvaluationContext ctx, object t)
{
MdbEvaluationContext mctx = (MdbEvaluationContext) ctx;
TargetStructType type = t as TargetStructType;
if (type != null && type.HasParent)
return type.GetParentType (mctx.Thread);
else
return null;
}
public override object[] GetTypeArgs (EvaluationContext ctx, object type)
{
return new object [0];
}
public override ValueReference GetThisReference (EvaluationContext gctx)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
if (ctx.Frame.Method != null && ctx.Frame.Method.HasThis) {
ObjectValueFlags flags = ObjectValueFlags.Field | ObjectValueFlags.ReadOnly;
TargetVariable var = ctx.Frame.Method.GetThis (ctx.Thread);
VariableReference vref = new VariableReference (ctx, var, flags);
return vref;
}
else
return null;
}
public override IEnumerable<ValueReference> GetParameters (EvaluationContext gctx)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
if (ctx.Frame.Method != null) {
foreach (TargetVariable var in ctx.Frame.Method.GetParameters (ctx.Thread))
yield return new VariableReference (ctx, var, ObjectValueFlags.Parameter);
}
}
public override IEnumerable<object> GetNestedTypes (EvaluationContext gctx, object type)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
string[] tname = GetTypeName (ctx, type).Split ('+');
object td = FindType (ctx, tname[0]);
if (td != null) {
td = FindNestedType (td, tname, 1);
IEnumerable nestedTypes = (IEnumerable) GetProp (td, "NestedTypes");
foreach (object nt in nestedTypes) {
string name = (string) GetProp (nt, "FullName");
object tt = GetType (ctx, name);
if (tt != null)
yield return tt;
}
}
}
object FindNestedType (object td, string[] names, int index)
{
if (index == names.Length)
return td;
IEnumerable nestedTypes = (IEnumerable) GetProp (td, "NestedTypes");
foreach (object nt in nestedTypes) {
string name = (string) GetProp (nt, "Name");
if (name == names [index])
return FindNestedType (nt, names, index + 1);
}
return null;
}
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 override void GetNamespaceContents (EvaluationContext gctx, string namspace, out string[] childNamespaces, out string[] childTypes)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
// Child types
List<string> types = new List<string> ();
HashSet<string> namespaces = new HashSet<string> ();
string namspaceDotted = namspace + ".";
foreach (object typeDefinition in GetAllTypeDefinitions (ctx, false)) {
string typeNamespace = (string) GetProp (typeDefinition, "Namespace");
if (typeNamespace == namspace)
types.Add ((string) GetProp (typeDefinition, "FullName"));
else if (typeNamespace.StartsWith (namspaceDotted)) {
int i = typeNamespace.IndexOf ('.', namspaceDotted.Length);
if (i != -1)
typeNamespace = typeNamespace.Substring (0, i);
namespaces.Add (typeNamespace);
}
}
childTypes = types.ToArray ();
childNamespaces = new string [namespaces.Count];
namespaces.CopyTo (childNamespaces);
}
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 (assembly, "Resolver");
foreach (object typeDefinition in GetAllTypeDefinitions (includePrivate, resolver, visited, assembly))
yield return typeDefinition;
}
}
public IEnumerable<object> GetAllTypeDefinitions (bool includePrivate, object resolver, HashSet<object> visited, object asm)
{
if (!visited.Add (asm))
yield break;
object mainModule = GetProp (asm, "MainModule");
foreach (object typeDefinition in (IEnumerable) GetProp (mainModule, "Types")) {
bool isPublic = includePrivate || (bool) GetProp (typeDefinition, "IsPublic");
bool isInterface = (bool) GetProp (typeDefinition, "IsInterface");
bool isEnum = (bool) GetProp (typeDefinition, "IsEnum");
if (isPublic && !isInterface && !isEnum)
yield return typeDefinition;
}
Type assemblyNameReferenceType = resolver.GetType ().Assembly.GetType ("Mono.Cecil.AssemblyNameReference");
MethodInfo resolveMet = resolver.GetType ().GetMethod ("Resolve", new Type[] { assemblyNameReferenceType });
foreach (object an in (IEnumerable) GetProp (mainModule, "AssemblyReferences")) {
object refAsm = resolveMet.Invoke (resolver, new object[] {an});
if (refAsm != null) {
foreach (object td in GetAllTypeDefinitions (includePrivate, resolver, visited, refAsm))
yield return td;
}
}
}
static object GetProp (object obj, string name)
{
return obj.GetType ().GetProperty (name).GetValue (obj, null);
}
protected override IEnumerable<ValueReference> GetMembers (EvaluationContext gctx, object tt, object ob, BindingFlags bindingFlags)
{
MdbEvaluationContext ctx = (MdbEvaluationContext)gctx;
TargetStructObject co = ctx.GetRealObject (ob) as TargetStructObject; // It can be a TargetObjectObject
TargetType t = (TargetType)tt;
if (co == null) {
bindingFlags |= BindingFlags.Static;
bindingFlags &= ~BindingFlags.Instance;
}
foreach (MemberReference mem in ObjectUtil.GetTypeMembers (ctx, t, true, true, false, bindingFlags)) {
if (mem.Member is TargetFieldInfo) {
TargetFieldInfo field = (TargetFieldInfo)mem.Member;
yield return new FieldReference (ctx, co, mem.DeclaringType, field);
}
if (mem.Member is TargetPropertyInfo) {
TargetPropertyInfo prop = (TargetPropertyInfo) mem.Member;
if (prop.CanRead && (prop.Getter.ParameterTypes == null || prop.Getter.ParameterTypes.Length == 0))
yield return new PropertyReference (ctx, prop, co);
}
}
}
public override IEnumerable<ValueReference> GetLocalVariables (EvaluationContext gctx)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
foreach (TargetVariable var in ctx.Frame.Method.GetLocalVariables (ctx.Thread)) {
yield return new VariableReference (ctx, var, ObjectValueFlags.Variable);
}
}
public override ValueReference GetIndexerReference (EvaluationContext gctx, object target, object index)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return IndexerValueReference.CreateIndexerValueReference (ctx, (TargetObject) target, (TargetObject) index);
}
public override string[] GetImportedNamespaces (EvaluationContext gctx)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return ctx.Frame.Method.GetNamespaces ();
}
public override object GetEnclosingType (EvaluationContext gctx)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return ctx.Frame.Method.GetDeclaringType (ctx.Frame.Thread);
}
public override object GetBaseValue (EvaluationContext gctx, object val)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
TargetStructObject sob = (TargetStructObject) ctx.GetRealObject (val);
return sob.GetParentObject (ctx.Thread);
}
public override object CreateValue (EvaluationContext gctx, object value)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return ctx.Frame.Language.CreateInstance (ctx.Thread, value);
}
public override object CreateValue (EvaluationContext gctx, object type, params object[] args)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
TargetType tt = (TargetType) type;
TargetObject[] lst = new TargetObject [args.Length];
Array.Copy (args, lst, args.Length);
return CallStaticMethod (ctx, ".ctor", tt, lst);
}
public override object CreateTypeObject (EvaluationContext gctx, object type)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return GetTypeOf (ctx, ((TargetType)type).Name);
}
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);
}
protected override ObjectValue CreateObjectValueImpl (EvaluationContext gctx, IObjectValueSource source, ObjectPath path, object vobj, ObjectValueFlags flags)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
TargetObject obj = ctx.GetRealObject (vobj);
if (obj == null)
return ObjectValue.CreateObject (null, path, "", null, flags | ObjectValueFlags.ReadOnly, null);
if (obj.HasAddress && obj.GetAddress (ctx.Thread).IsNull)
return ObjectValue.CreateObject (null, path, obj.TypeName, ctx.Evaluator.ToExpression (null), flags, null);
switch (obj.Kind) {
case TargetObjectKind.Struct:
case TargetObjectKind.GenericInstance:
case TargetObjectKind.Class:
TypeDisplayData tdata = GetTypeDisplayData (ctx, obj.Type);
TargetStructObject co = obj as TargetStructObject;
if (co == null)
return ObjectValue.CreateUnknown (path.LastName);
else {
string tvalue;
if (!string.IsNullOrEmpty (tdata.ValueDisplayString) && ctx.Options.AllowDisplayStringEvaluation)
tvalue = EvaluateDisplayString (ctx, co, tdata.ValueDisplayString);
else
tvalue = ctx.Evaluator.TargetObjectToExpression (ctx, obj);
string tname;
if (!string.IsNullOrEmpty (tdata.TypeDisplayString) && ctx.Options.AllowDisplayStringEvaluation)
tname = EvaluateDisplayString (ctx, co, tdata.TypeDisplayString);
else
tname = obj.TypeName;
ObjectValue val = ObjectValue.CreateObject (source, path, tname, tvalue, flags, null);
if (!string.IsNullOrEmpty (tdata.NameDisplayString) && ctx.Options.AllowDisplayStringEvaluation)
val.Name = EvaluateDisplayString (ctx, co, tdata.NameDisplayString);
return val;
}
case TargetObjectKind.Object:
TargetObjectObject oob = obj as TargetObjectObject;
if (oob == null)
return ObjectValue.CreateUnknown (path.LastName);
else
return ObjectValue.CreateObject (source, path, obj.TypeName, Server.Instance.Evaluator.TargetObjectToExpression (ctx, obj), flags, null);
case TargetObjectKind.Array:
return ObjectValue.CreateObject (source, path, obj.TypeName, Server.Instance.Evaluator.TargetObjectToExpression (ctx, obj), flags, null);
case TargetObjectKind.Fundamental:
TargetFundamentalObject fob = (TargetFundamentalObject) obj;
return ObjectValue.CreatePrimitive (source, path, obj.TypeName, Server.Instance.Evaluator.TargetObjectToExpression (ctx, fob), flags);
case TargetObjectKind.Enum:
Console.WriteLine ("pp ??? ENUM: " + obj.GetType ());
TargetEnumObject enumobj = (TargetEnumObject) obj;
return CreateObjectValue (ctx, source, path, enumobj.GetValue (ctx.Thread), flags);
case TargetObjectKind.Pointer:
return ObjectValue.CreateObject (source, path, obj.TypeName, Server.Instance.Evaluator.TargetObjectToExpression (ctx, obj), flags, null);
case TargetObjectKind.Nullable:
TargetNullableObject tn = (TargetNullableObject) obj;
if (tn.HasValue (ctx.Thread)) {
ObjectValue val = CreateObjectValue (ctx, source, path, tn.GetValue (ctx.Thread), flags);
val.TypeName = obj.TypeName;
return val;
}
else {
flags |= ObjectValueFlags.Primitive;
return ObjectValue.CreateObject (source, path, obj.TypeName, ctx.Evaluator.ToExpression (null), flags, new ObjectValue [0]);
}
default:
return ObjectValue.CreateFatalError (path.LastName, "Unknown value type: " + obj.Kind, flags);
}
}
public override object CreateNullValue (EvaluationContext gctx, object type)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
return ctx.Frame.Language.CreateNullObject (ctx.Thread, (TargetType)type);
}
public override ICollectionAdaptor CreateArrayAdaptor (EvaluationContext gctx, object arr)
{
MdbEvaluationContext ctx = (MdbEvaluationContext) gctx;
TargetArrayObject aob = arr as TargetArrayObject;
if (aob != null)
return new ArrayAdaptor (ctx, aob);
else
return null;
}
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 (target.Type != mem.DeclaringType) {
TargetStructObject par = starget.GetParentObject (ctx.Thread);
if (par != null)
target = 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);
}
public static TargetObject CallStaticMethod (MdbEvaluationContext ctx, string name,
string typeName,
params TargetObject[] args)
{
return CallStaticMethod (ctx, name, ctx.Frame.Language.LookupType (typeName), args);
}
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, (TargetStructType) 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 MemberReference OverloadResolve (MdbEvaluationContext ctx, string methodName, TargetStructType 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);
}
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;
}
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;
}
}
class ObjectUtil
{
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.Enum:
TargetEnumObject eob = (TargetEnumObject) obj;
return eob.GetValue (ctx.Thread);
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 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> ();
TargetStructType type = t as TargetStructType;
Dictionary<string,string> foundMethods = new Dictionary<string,string> ();
while (type != null) {
TargetFieldInfo[] fields = null;
TargetPropertyInfo[] properties = null;
TargetMethodInfo[] methods = null;
TargetClass cls = type.GetClass (ctx.Thread);
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 = type as TargetClassType;
if (ct == null && type.HasClassType)
ct = type.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, type));
}
}
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, type));
}
}
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, type));
}
}
}
if (type.HasParent && (flags & BindingFlags.DeclaredOnly) == 0)
type = type.GetParentType (ctx.Thread);
else
break;
}
return members;
}
public static ObjectValueFlags GetAccessibility (TargetMemberAccessibility ma)
{
switch (ma) {
case TargetMemberAccessibility.Internal: return ObjectValueFlags.Internal;
case TargetMemberAccessibility.Protected: return ObjectValueFlags.Protected;
case TargetMemberAccessibility.Public: return ObjectValueFlags.Public;
default: return ObjectValueFlags.Private;
}
}
public static string FixTypeName (string typeName)
{
// Required since the debugger uses C# type aliases for fundamental types,
// which is silly, but looks like it won't be fixed any time soon.
typeName = typeName.Replace ('/','+');
switch (typeName) {
case "short": return "System.Int16";
case "ushort": return "System.UInt16";
case "int": return "System.Int32";
case "uint": return "System.UInt32";
case "long": return "System.Int64";
case "ulong": return "System.UInt64";
case "float": return "System.Single";
case "double": return "System.Double";
case "char": return "System.Char";
case "byte": return "System.Byte";
case "sbyte": return "System.SByte";
case "object": return "System.Object";
case "string": return "System.String";
case "bool": return "System.Boolean";
case "void": return "System.Void";
case "decimal": return "System.Decimal";
}
int i = typeName.IndexOf ('<');
if (i != -1) {
StringBuilder sb = new StringBuilder (typeName.Substring (0, i));
sb.Append ('[');
i++;
int e;
do {
e = FindTypeEnd (typeName, i);
sb.Append (FixTypeName (typeName.Substring (i, e-i)));
sb.Append (',');
i = e + 1;
} while (typeName [e] == ',');
sb.Remove (sb.Length - 1, 1);
sb.Append (']');
return sb.ToString ();
}
return typeName;
}
static int FindTypeEnd (string str, int index)
{
int level = 0;
while (index < str.Length) {
char c = str [index];
if (c == '[' || c == '<')
level++;
if (c == ']' || c == '>') {
if (level == 0)
return index;
else
level--;
}
if (c == ',' && level == 0)
return index;
index++;
}
return index;
}
}
public class MemberReference
{
public readonly TargetMemberInfo Member;
public readonly TargetStructType DeclaringType;
public MemberReference (TargetMemberInfo member, TargetStructType type)
{
Member = member;
DeclaringType = type;
}
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.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));
}
}
}
class MethodCall: AsyncOperation
{
MdbEvaluationContext ctx;
TargetFunctionType function;
TargetStructObject object_argument;
TargetObject[] param_objects;
RuntimeInvokeResult res;
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 override string Description {
get {
if (function.DeclaringType != null)
return function.DeclaringType.Name + "." + function.Name;
else
return function.Name;
}
}
public override void Invoke ( )
{
res = ctx.Thread.RuntimeInvoke (function, object_argument, param_objects, true, false);
}
public override void Abort ( )
{
res.Abort ();
res.CompletedEvent.WaitOne ();
Server.Instance.MdbAdaptor.AbortThread (ctx.Thread, res);
WaitToStop (ctx.Thread);
}
public override void Shutdown ()
{
res.Abort ();
if (!res.CompletedEvent.WaitOne (200))
return;
Server.Instance.MdbAdaptor.AbortThread (ctx.Thread, res);
}
public override bool WaitForCompleted (int timeout)
{
if (timeout != -1) {
if (!res.CompletedEvent.WaitOne (timeout, false))
return false;
}
else {
res.Wait ();
}
WaitToStop (ctx.Thread);
return true;
}
void WaitToStop (Thread thread)
{
thread.WaitHandle.WaitOne ();
while (!thread.IsStopped)
ST.Thread.Sleep (1);
}
public TargetObject ReturnValue {
get {
if (res.ExceptionMessage != null)
throw new EvaluatorException (res.ExceptionMessage);
return res.ReturnObject;
}
}
}
}
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