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Commit93a1313

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committed
use PyType instances instead of raw pointers in TypeManager type cache and ConstructorBinding instances
1 parentdb746aa commit93a1313

13 files changed

+142
-157
lines changed

‎src/runtime/classbase.cs

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -373,7 +373,7 @@ public static int tp_clear(IntPtr ob)
373373
protectedoverridevoidOnSave(InterDomainContextcontext)
374374
{
375375
base.OnSave(context);
376-
if(pyHandle!=tpHandle)
376+
if(!this.IsClrMetaTypeInstance())
377377
{
378378
IntPtrdict=GetObjectDict(pyHandle);
379379
Runtime.XIncref(dict);
@@ -384,7 +384,7 @@ protected override void OnSave(InterDomainContext context)
384384
protectedoverridevoidOnLoad(InterDomainContextcontext)
385385
{
386386
base.OnLoad(context);
387-
if(pyHandle!=tpHandle)
387+
if(!this.IsClrMetaTypeInstance())
388388
{
389389
IntPtrdict=context.Storage.GetValue<IntPtr>("dict");
390390
SetObjectDict(pyHandle,dict);

‎src/runtime/classderived.cs

Lines changed: 4 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -122,11 +122,13 @@ internal static IntPtr ToPython(IPythonDerivedType obj)
122122
/// </summary>
123123
internalstaticTypeCreateDerivedType(stringname,
124124
TypebaseType,
125-
IntPtrpy_dict,
125+
BorrowedReferencedictRef,
126126
stringnamespaceStr,
127127
stringassemblyName,
128128
stringmoduleName="Python.Runtime.Dynamic.dll")
129129
{
130+
// TODO: clean up
131+
IntPtrpy_dict=dictRef.DangerousGetAddress();
130132
if(null!=namespaceStr)
131133
{
132134
name=namespaceStr+"."+name;
@@ -824,7 +826,7 @@ public static void InvokeCtor(IPythonDerivedType obj, string origCtorName, objec
824826
try
825827
{
826828
// create the python object
827-
IntPtrtype=TypeManager.GetTypeHandle(obj.GetType());
829+
BorrowedReferencetype=TypeManager.GetTypeReference(obj.GetType());
828830
self=newCLRObject(obj,type);
829831

830832
// set __pyobj__ to self and deref the python object which will allow this

‎src/runtime/classmanager.cs

Lines changed: 7 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -117,7 +117,7 @@ internal static void SaveRuntimeData(RuntimeDataStorage storage)
117117
// Python object's dictionary tool; thus raising an AttributeError
118118
// instead of a TypeError.
119119
// Classes are re-initialized on in RestoreRuntimeData.
120-
vardict=newBorrowedReference(Marshal.ReadIntPtr(cls.Value.tpHandle,TypeOffset.tp_dict));
120+
usingvardict=Runtime.PyObject_GenericGetDict(cls.Value.TypeReference);
121121
foreach(varmemberincls.Value.dotNetMembers)
122122
{
123123
// No need to decref the member, the ClassBase instance does
@@ -135,7 +135,7 @@ internal static void SaveRuntimeData(RuntimeDataStorage storage)
135135
}
136136
}
137137
// We modified the Type object, notify it we did.
138-
Runtime.PyType_Modified(cls.Value.tpHandle);
138+
Runtime.PyType_Modified(cls.Value.TypeReference);
139139
}
140140
}
141141

@@ -155,7 +155,7 @@ internal static Dictionary<ManagedType, InterDomainContext> RestoreRuntimeData(R
155155
// re-init the class
156156
InitClassBase(pair.Key.Value,pair.Value);
157157
// We modified the Type object, notify it we did.
158-
Runtime.PyType_Modified(pair.Value.tpHandle);
158+
Runtime.PyType_Modified(pair.Value.TypeReference);
159159
varcontext=contexts[pair.Value.pyHandle];
160160
pair.Value.Load(context);
161161
loadedObjs.Add(pair.Value,context);
@@ -266,10 +266,10 @@ private static void InitClassBase(Type type, ClassBase impl)
266266
// point to the managed methods providing the implementation.
267267

268268

269-
IntPtrtp=TypeManager.GetTypeHandle(impl,type);
269+
varpyType=TypeManager.GetType(impl,type);
270270

271271
// Finally, initialize the class __dict__ and return the object.
272-
vardict=newBorrowedReference(Marshal.ReadIntPtr(tp,TypeOffset.tp_dict));
272+
usingvardict=Runtime.PyObject_GenericGetDict(pyType.Reference);
273273

274274

275275
if(impl.dotNetMembers==null)
@@ -312,7 +312,7 @@ private static void InitClassBase(Type type, ClassBase impl)
312312
// Implement Overloads on the class object
313313
if(!CLRModule._SuppressOverloads)
314314
{
315-
varctors=newConstructorBinding(type,tp,co.binder);
315+
varctors=newConstructorBinding(type,pyType,co.binder);
316316
// ExtensionType types are untracked, so don't Incref() them.
317317
// TODO: deprecate __overloads__ soon...
318318
Runtime.PyDict_SetItem(dict,PyIdentifier.__overloads__,ctors.ObjectReference);
@@ -332,7 +332,7 @@ private static void InitClassBase(Type type, ClassBase impl)
332332

333333
// The type has been modified after PyType_Ready has been called
334334
// Refresh the type
335-
Runtime.PyType_Modified(tp);
335+
Runtime.PyType_Modified(pyType.Reference);
336336
}
337337

338338
internalstaticboolShouldBindMethod(MethodBasemb)

‎src/runtime/clrobject.cs

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -26,6 +26,8 @@ internal CLRObject(object ob, IntPtr tp)
2626
if(obisExceptione)Exceptions.SetArgsAndCause(e,py);
2727
}
2828

29+
internalCLRObject(objectob,BorrowedReferencetp):this(ob,tp.DangerousGetAddress()){}
30+
2931
protectedCLRObject()
3032
{
3133
}

‎src/runtime/constructorbinding.cs

Lines changed: 10 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -23,16 +23,16 @@ namespace Python.Runtime
2323
internalclassConstructorBinding:ExtensionType
2424
{
2525
privateMaybeTypetype;// The managed Type being wrapped in a ClassObject
26-
privateIntPtrpyTypeHndl;// The python type tells GetInstHandle which Type to create.
26+
privatePyTypetypeToCreate;// The python type tells GetInstHandle which Type to create.
2727
privateConstructorBinderctorBinder;
2828

2929
[NonSerialized]
3030
privateIntPtrrepr;
3131

32-
publicConstructorBinding(Typetype,IntPtrpyTypeHndl,ConstructorBinderctorBinder)
32+
publicConstructorBinding(Typetype,PyTypetypeToCreate,ConstructorBinderctorBinder)
3333
{
3434
this.type=type;
35-
this.pyTypeHndl=pyTypeHndl;// steal a type reference
35+
this.typeToCreate=typeToCreate;
3636
this.ctorBinder=ctorBinder;
3737
repr=IntPtr.Zero;
3838
}
@@ -110,7 +110,7 @@ public static IntPtr mp_subscript(IntPtr op, IntPtr key)
110110
{
111111
returnExceptions.RaiseTypeError("No match found for constructor signature");
112112
}
113-
varboundCtor=newBoundContructor(tp,self.pyTypeHndl,self.ctorBinder,ci);
113+
varboundCtor=newBoundContructor(tp,self.typeToCreate,self.ctorBinder,ci);
114114

115115
returnboundCtor.pyHandle;
116116
}
@@ -169,7 +169,7 @@ public static int tp_clear(IntPtr ob)
169169
publicstaticinttp_traverse(IntPtrob,IntPtrvisit,IntPtrarg)
170170
{
171171
varself=(ConstructorBinding)GetManagedObject(ob);
172-
intres=PyVisit(self.pyTypeHndl,visit,arg);
172+
intres=PyVisit(self.typeToCreate.Handle,visit,arg);
173173
if(res!=0)returnres;
174174

175175
res=PyVisit(self.repr,visit,arg);
@@ -190,15 +190,15 @@ public static int tp_traverse(IntPtr ob, IntPtr visit, IntPtr arg)
190190
internalclassBoundContructor:ExtensionType
191191
{
192192
privateTypetype;// The managed Type being wrapped in a ClassObject
193-
privateIntPtrpyTypeHndl;// The python type tells GetInstHandle which Type to create.
193+
privatePyTypetypeToCreate;// The python type tells GetInstHandle which Type to create.
194194
privateConstructorBinderctorBinder;
195195
privateConstructorInfoctorInfo;
196196
privateIntPtrrepr;
197197

198-
publicBoundContructor(Typetype,IntPtrpyTypeHndl,ConstructorBinderctorBinder,ConstructorInfoci)
198+
publicBoundContructor(Typetype,PyTypetypeToCreate,ConstructorBinderctorBinder,ConstructorInfoci)
199199
{
200200
this.type=type;
201-
this.pyTypeHndl=pyTypeHndl;// steal a type reference
201+
this.typeToCreate=typeToCreate;
202202
this.ctorBinder=ctorBinder;
203203
ctorInfo=ci;
204204
repr=IntPtr.Zero;
@@ -229,7 +229,7 @@ public static IntPtr tp_call(IntPtr op, IntPtr args, IntPtr kw)
229229
}
230230
// Instantiate the python object that wraps the result of the method call
231231
// and return the PyObject* to it.
232-
returnCLRObject.GetInstHandle(obj,self.pyTypeHndl);
232+
returnCLRObject.GetInstHandle(obj,self.typeToCreate.Reference).DangerousMoveToPointer();
233233
}
234234

235235
/// <summary>
@@ -272,7 +272,7 @@ public static int tp_clear(IntPtr ob)
272272
publicstaticinttp_traverse(IntPtrob,IntPtrvisit,IntPtrarg)
273273
{
274274
varself=(BoundContructor)GetManagedObject(ob);
275-
intres=PyVisit(self.pyTypeHndl,visit,arg);
275+
intres=PyVisit(self.typeToCreate.Handle,visit,arg);
276276
if(res!=0)returnres;
277277

278278
res=PyVisit(self.repr,visit,arg);

‎src/runtime/exceptions.cs

Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -206,6 +206,15 @@ internal static void ErrorOccurredCheck(IntPtr pointer)
206206
}
207207
}
208208

209+
internalstaticIntPtrErrorCheckIfNull(IntPtrpointer)
210+
{
211+
if(pointer==IntPtr.Zero&&ErrorOccurred())
212+
{
213+
thrownewPythonException();
214+
}
215+
returnpointer;
216+
}
217+
209218
/// <summary>
210219
/// ExceptionMatches Method
211220
/// </summary>

‎src/runtime/extensiontype.cs

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -18,7 +18,7 @@ public ExtensionType()
1818
// The Python instance object is related to an instance of a
1919
// particular concrete subclass with a hidden CLR gchandle.
2020

21-
IntPtrtp=TypeManager.GetTypeHandle(GetType());
21+
BorrowedReferencetp=TypeManager.GetTypeReference(GetType());
2222

2323
//int rc = (int)Marshal.ReadIntPtr(tp, TypeOffset.ob_refcnt);
2424
//if (rc > 1050)
@@ -27,11 +27,11 @@ public ExtensionType()
2727
// DebugUtil.DumpType(tp);
2828
//}
2929

30-
IntPtrpy=Runtime.PyType_GenericAlloc(tp,0);
30+
NewReferencepy=Runtime.PyType_GenericAlloc(tp,0);
3131

32-
//Steals a ref to tpHandle.
33-
tpHandle=tp;
34-
pyHandle=py;
32+
//Borrowed reference. Valid as long as pyHandle is valid.
33+
tpHandle=tp.DangerousGetAddress();
34+
pyHandle=py.DangerousMoveToPointer();
3535

3636
#ifDEBUG
3737
GetGCHandle(ObjectReference,TypeReference,outvarexisting);

‎src/runtime/managedtype.cs

Lines changed: 16 additions & 19 deletions
Original file line numberDiff line numberDiff line change
@@ -1,3 +1,4 @@
1+
#nullable enable
12
usingSystem;
23
usingSystem.Collections.Generic;
34
usingSystem.Diagnostics;
@@ -27,8 +28,8 @@ internal enum TrackTypes
2728
internalIntPtrpyHandle;// PyObject *
2829
internalIntPtrtpHandle;// PyType *
2930

30-
internalBorrowedReferenceObjectReference=>newBorrowedReference(pyHandle);
31-
internalBorrowedReferenceTypeReference=>newBorrowedReference(tpHandle);
31+
internalBorrowedReferenceObjectReference=>new(pyHandle);
32+
internalBorrowedReferenceTypeReference=>new(tpHandle);
3233

3334
privatestaticreadonlyDictionary<ManagedType,TrackTypes>_managedObjs=newDictionary<ManagedType,TrackTypes>();
3435

@@ -78,12 +79,12 @@ internal void FreeGCHandle()
7879
}
7980
}
8081

81-
internalstaticManagedTypeGetManagedObject(BorrowedReferenceob)
82+
internalstaticManagedType?GetManagedObject(BorrowedReferenceob)
8283
=>GetManagedObject(ob.DangerousGetAddress());
8384
/// <summary>
8485
/// Given a Python object, return the associated managed object or null.
8586
/// </summary>
86-
internalstaticManagedTypeGetManagedObject(IntPtrob)
87+
internalstaticManagedType?GetManagedObject(IntPtrob)
8788
{
8889
if(ob!=IntPtr.Zero)
8990
{
@@ -106,7 +107,7 @@ internal static ManagedType GetManagedObject(IntPtr ob)
106107
/// <summary>
107108
/// Given a Python object, return the associated managed object type or null.
108109
/// </summary>
109-
internalstaticManagedTypeGetManagedObjectType(IntPtrob)
110+
internalstaticManagedType?GetManagedObjectType(IntPtrob)
110111
{
111112
if(ob!=IntPtr.Zero)
112113
{
@@ -121,18 +122,6 @@ internal static ManagedType GetManagedObjectType(IntPtr ob)
121122
returnnull;
122123
}
123124

124-
125-
internalstaticManagedTypeGetManagedObjectErr(IntPtrob)
126-
{
127-
ManagedTyperesult=GetManagedObject(ob);
128-
if(result==null)
129-
{
130-
Exceptions.SetError(Exceptions.TypeError,"invalid argument, expected CLR type");
131-
}
132-
returnresult;
133-
}
134-
135-
136125
internalstaticboolIsInstanceOfManagedType(BorrowedReferenceob)
137126
=>IsInstanceOfManagedType(ob.DangerousGetAddressOrNull());
138127
internalstaticboolIsInstanceOfManagedType(IntPtrob)
@@ -156,6 +145,13 @@ internal static bool IsManagedType(BorrowedReference type)
156145
return(flags&TypeFlags.HasClrInstance)!=0;
157146
}
158147

148+
publicboolIsClrMetaTypeInstance()
149+
{
150+
Debug.Assert(Runtime.PyCLRMetaType!=IntPtr.Zero);
151+
Debug.Assert(pyHandle!=IntPtr.Zero);
152+
returnRuntime.PyObject_TYPE(pyHandle)==Runtime.PyCLRMetaType;
153+
}
154+
159155
internalstaticIDictionary<ManagedType,TrackTypes>GetManagedObjects()
160156
{
161157
return_managedObjs;
@@ -185,7 +181,8 @@ internal void CallTypeClear()
185181
{
186182
return;
187183
}
188-
varclearPtr=Marshal.ReadIntPtr(tpHandle,TypeOffset.tp_clear);
184+
185+
varclearPtr=Runtime.PyType_GetSlot(TypeReference,TypeSlotID.tp_clear);
189186
if(clearPtr==IntPtr.Zero)
190187
{
191188
return;
@@ -203,7 +200,7 @@ internal void CallTypeTraverse(Interop.ObjObjFunc visitproc, IntPtr arg)
203200
{
204201
return;
205202
}
206-
vartraversePtr=Marshal.ReadIntPtr(tpHandle,TypeOffset.tp_traverse);
203+
vartraversePtr=Runtime.PyType_GetSlot(TypeReference,TypeSlotID.tp_traverse);
207204
if(traversePtr==IntPtr.Zero)
208205
{
209206
return;

‎src/runtime/metatype.cs

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -132,7 +132,7 @@ public static IntPtr tp_new(IntPtr tp, IntPtr args, IntPtr kw)
132132
{
133133
if(clsDict.HasKey("__assembly__")||clsDict.HasKey("__namespace__"))
134134
{
135-
returnTypeManager.CreateSubType(name,base_type,dict);
135+
returnTypeManager.CreateSubType(name,base_type,clsDict.Reference);
136136
}
137137
}
138138
}
@@ -266,7 +266,7 @@ public static int tp_setattro(IntPtr tp, IntPtr name, IntPtr value)
266266
}
267267

268268
intres=Runtime.PyObject_GenericSetAttr(tp,name,value);
269-
Runtime.PyType_Modified(tp);
269+
Runtime.PyType_Modified(newBorrowedReference(tp));
270270

271271
returnres;
272272
}

‎src/runtime/pytype.cs

Lines changed: 13 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -6,13 +6,20 @@
66

77
namespacePython.Runtime
88
{
9+
[Serializable]
910
publicclassPyType:PyObject
1011
{
1112
/// <summary>Creates heap type object from the <paramref name="spec"/>.</summary>
1213
publicPyType(TypeSpecspec,PyTuple?bases=null):base(FromSpec(spec,bases)){}
1314
/// <summary>Wraps an existing type object.</summary>
1415
publicPyType(PyObjecto):base(FromObject(o)){}
1516

17+
internalPyType(BorrowedReferencereference):base(reference)
18+
{
19+
if(!Runtime.PyType_Check(this.Handle))
20+
thrownewArgumentException("object is not a type");
21+
}
22+
1623
/// <summary>Checks if specified object is a Python type.</summary>
1724
publicstaticboolIsType(PyObjectvalue)
1825
{
@@ -21,6 +28,12 @@ public static bool IsType(PyObject value)
2128
returnRuntime.PyType_Check(value.obj);
2229
}
2330

31+
internalIntPtrGetSlot(TypeSlotIDslot)
32+
{
33+
IntPtrresult=Runtime.PyType_GetSlot(this.Reference,slot);
34+
returnExceptions.ErrorCheckIfNull(result);
35+
}
36+
2437
privatestaticBorrowedReferenceFromObject(PyObjecto)
2538
{
2639
if(oisnull)thrownewArgumentNullException(nameof(o));

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