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Commita21a388

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added debug information for failures to create a derived type
1 parent44a36dc commita21a388

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5 files changed

+65
-2
lines changed

5 files changed

+65
-2
lines changed

‎src/runtime/NewReference.cs

Lines changed: 21 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -36,6 +36,27 @@ public IntPtr DangerousMoveToPointerOrNull()
3636
returnresult;
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}
3838

39+
/// <summary>
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/// Moves ownership of this reference to a Python C API function,
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/// that steals reference passed to it.
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/// </summary>
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publicStolenReferenceSteal()
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{
45+
if(this.IsNull())thrownewNullReferenceException();
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returnthis.StealOrNull();
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}
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/// <summary>
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/// Moves ownership of this reference to a Python C API function,
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/// that steals reference passed to it.
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/// </summary>
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publicStolenReferenceStealOrNull()
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{
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IntPtrrawPointer=this.pointer;
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this.pointer=IntPtr.Zero;
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returnnewStolenReference(rawPointer);
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}
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3960
/// <summary>
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/// Removes this reference to a Python object, and sets it to <c>null</c>.
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/// </summary>

‎src/runtime/StolenReference.cs

Lines changed: 18 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,18 @@
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namespacePython.Runtime
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{
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usingSystem;
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/// <summary>
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/// Should only be used for the arguments of Python C API functions, that steal references
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/// </summary>
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[NonCopyable]
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readonlyrefstructStolenReference
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{
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readonlyIntPtrpointer;
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internalStolenReference(IntPtrpointer)
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{
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this.pointer=pointer;
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}
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}
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}

‎src/runtime/exceptions.cs

Lines changed: 13 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
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usingSystem;
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usingSystem.Diagnostics;
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usingSystem.Reflection;
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usingSystem.Runtime.InteropServices;
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@@ -374,6 +375,18 @@ internal static IntPtr RaiseTypeError(string message)
374375
returnIntPtr.Zero;
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}
376377

378+
internalstaticIntPtrSetCause(Exceptioncause){
379+
Runtime.PyErr_Fetch(outNewReferenceob,outNewReferenceval,outNewReferencetb);
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Debug.Assert(!ob.IsNull()||!val.IsNull());
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Runtime.PyErr_NormalizeException(refob,refval,reftb);
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varcausePyObj=NewReference.DangerousFromPointer(Converter.ToPython(cause));
384+
Runtime.PyException_SetCause(ob,causePyObj.Steal());
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386+
Runtime.PyErr_Restore(ob.Steal(),val.StealOrNull(),tb.StealOrNull());
387+
returnIntPtr.Zero;
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}
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377390
// 2010-11-16: Arranged in python (2.6 & 2.7) source header file order
378391
/* Predefined exceptions are
379392
puplic static variables on the Exceptions class filled in from

‎src/runtime/runtime.cs

Lines changed: 10 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2034,23 +2034,32 @@ internal static IntPtr PyMem_Realloc(IntPtr ptr, long size)
20342034
internalstaticexternint PyErr_GivenExceptionMatches(IntPtr ob, IntPtr val);
20352035

20362036
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
2037-
internalstaticexternvoid PyErr_NormalizeException(IntPtrob,IntPtrval,IntPtr tb);
2037+
internalstaticexternvoid PyErr_NormalizeException(ref NewReferenceob,ref NewReferenceval,ref NewReference tb);
20382038

20392039
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
20402040
internalstaticextern IntPtr PyErr_Occurred();
20412041

20422042
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
20432043
internalstaticexternvoid PyErr_Fetch(out IntPtr ob,out IntPtr val,out IntPtr tb);
2044+
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
2045+
internalstaticexternvoid PyErr_Fetch(out NewReference ob,out NewReference val,out NewReference tb);
20442046

20452047
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
20462048
internalstaticexternvoid PyErr_Restore(IntPtr ob, IntPtr val, IntPtr tb);
2049+
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
2050+
internalstaticexternvoid PyErr_Restore(StolenReference ob, StolenReference val, StolenReference tb);
20472051

20482052
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
20492053
internalstaticexternvoid PyErr_Clear();
20502054

20512055
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
20522056
internalstaticexternvoid PyErr_Print();
20532057

2058+
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
2059+
internalstaticexternvoid PyException_SetCause(BorrowedReference ex, StolenReference cause);
2060+
[DllImport(_PythonDll, CallingConvention= CallingConvention.Cdecl)]
2061+
internalstaticexternint PyException_SetTraceback(BorrowedReference ex, BorrowedReference cause);
2062+
20542063
//====================================================================
20552064
// Cell API
20562065
//====================================================================

‎src/runtime/typemanager.cs

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -384,7 +384,9 @@ internal static IntPtr CreateSubType(IntPtr py_name, IntPtr py_base_type, IntPtr
384384
}
385385
catch(Exceptione)
386386
{
387-
returnExceptions.RaiseTypeError(e.Message);
387+
Exceptions.RaiseTypeError("unable to create derived type");
388+
Exceptions.SetCause(e);
389+
returnIntPtr.Zero;
388390
}
389391
}
390392

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