merge latest master

pythonnet · lostmsu · Jun 1, 2021 · May 5, 2020 · Feb 25, 2020 · May 5, 2020
commit 67bd1c2429d8aa84b18ea04d05aa9549f60d09ef
diff --git a/src/embed_tests/TestRuntime.cs b/src/embed_tests/TestRuntime.cs
@@ -2,7 +2,6 @@
 using System.Collections.Generic;
 using NUnit.Framework;
 using Python.Runtime;
-using Python.Runtime.Platform;
 
 namespace Python.EmbeddingTest
 {
@@ -102,7 +101,7 @@ public static void PyCheck_Iter_PyObject_IsIterable_ThreadingLock_Test()
                 Exceptions.ErrorCheck(threadingDict);
                 var lockType = Runtime.Runtime.PyDict_GetItemString(threadingDict, "Lock");
                 if (lockType.IsNull)
-                    throw new PythonException();
+                    throw PythonException.ThrowLastAsClrException();
 
                 using var args = NewReference.DangerousFromPointer(Runtime.Runtime.PyTuple_New(0));
                 using var lockInstance = Runtime.Runtime.PyObject_CallObject(lockType, args);

diff --git a/src/runtime/clrobject.cs b/src/runtime/clrobject.cs
@@ -23,7 +23,7 @@ internal CLRObject(object ob, IntPtr tp)
 
             // Fix the BaseException args (and __cause__ in case of Python 3)
             // slot if wrapping a CLR exception
-            Exceptions.SetArgsAndCause(ObjectReference);
+            if (ob is Exception e) Exceptions.SetArgsAndCause(ObjectReference, e);
         }
 
         internal CLRObject(object ob, BorrowedReference tp) : this(ob, tp.DangerousGetAddress()) { }

diff --git a/src/runtime/converter.cs b/src/runtime/converter.cs
@@ -533,7 +533,7 @@ internal static int ToInt32(BorrowedReference value)
             nint num = Runtime.PyLong_AsSignedSize_t(value);
             if (num == -1 && Exceptions.ErrorOccurred())
            {
-                throw new PythonException();
+                throw PythonException.ThrowLastAsClrException();
             }
             return checked((int)num);
         }

diff --git a/src/runtime/exceptions.cs b/src/runtime/exceptions.cs
@@ -147,8 +147,7 @@ internal static void Shutdown()
         /// __getattr__ implementation, and thus dereferencing a NULL
         /// pointer.
         /// </summary>
-        /// <param name="ob">The python object wrapping </param>
-        internal static void SetArgsAndCause(BorrowedReference ob)
+        internal static void SetArgsAndCause(BorrowedReference ob, Exception e)
         {
             IntPtr args;
             if (!string.IsNullOrEmpty(e.Message))
@@ -162,7 +161,10 @@ internal static void SetArgsAndCause(BorrowedReference ob)
                 args = Runtime.PyTuple_New(0);
             }
 
-            Marshal.WriteIntPtr(ob.DangerousGetAddress(), ExceptionOffset.args, args);
+            using var argsTuple = NewReference.DangerousFromPointer(args);
+
+            if (Runtime.PyObject_SetAttrString(ob, "args", argsTuple) != 0)
+                throw PythonException.ThrowLastAsClrException();
 
             if (e.InnerException != null)
             {
@@ -201,7 +203,7 @@ internal static IntPtr ErrorCheckIfNull(IntPtr pointer)
         {
             if (pointer == IntPtr.Zero && ErrorOccurred())
             {
-                throw new PythonException();
+                throw PythonException.ThrowLastAsClrException();
             }
             return pointer;
         }

diff --git a/src/runtime/interop.cs b/src/runtime/interop.cs
@@ -68,279 +68,6 @@ public ModulePropertyAttribute()
         }
     }
 
-    internal static partial class TypeOffset
-    {
-        public static int magic() => ManagedDataOffsets.Magic;
-    }
-
-    internal static class ManagedDataOffsets
-    {
-        public static int Magic { get; internal set; }
-        public static readonly Dictionary<string, int> NameMapping = new Dictionary<string, int>();
-
-        static class DataOffsets
-        {
-            public static readonly int ob_data = 0;
-            public static readonly int ob_dict = 0;
-
-            static DataOffsets()
-            {
-                FieldInfo[] fields = typeof(DataOffsets).GetFields(BindingFlags.Static | BindingFlags.Public);
-                for (int i = 0; i < fields.Length; i++)
-                {
-                    fields[i].SetValue(null, -(i * IntPtr.Size) - IntPtr.Size);
-                }
-            }
-        }
-
-        static ManagedDataOffsets()
-        {
-            NameMapping = TypeOffset.GetOffsets();
-
-            FieldInfo[] fields = typeof(DataOffsets).GetFields(BindingFlags.Static | BindingFlags.Public);
-            size = fields.Length * IntPtr.Size;
-        }
-
-        public static int GetSlotOffset(string name)
-        {
-            return NameMapping[name];
-        }
-
-        private static int BaseOffset(IntPtr type)
-        {
-            Debug.Assert(type != IntPtr.Zero);
-            int typeSize = Marshal.ReadInt32(type, TypeOffset.tp_basicsize);
-            Debug.Assert(typeSize > 0);
-            return typeSize;
-        }
-
-        public static int DataOffset(IntPtr type)
-        {
-            return BaseOffset(type) + DataOffsets.ob_data;
-        }
-
-        public static int DictOffset(IntPtr type)
-        {
-            return BaseOffset(type) + DataOffsets.ob_dict;
-        }
-
-        public static int ob_data => DataOffsets.ob_data;
-        public static int ob_dict => DataOffsets.ob_dict;
-        public static int Size { get { return size; } }
-
-        private static readonly int size;
-    }
-
-    internal static class OriginalObjectOffsets
-    {
-        static OriginalObjectOffsets()
-        {
-            int size = IntPtr.Size;
-            var n = 0; // Py_TRACE_REFS add two pointers to PyObject_HEAD
-#if PYTHON_WITH_PYDEBUG
-            _ob_next = 0;
-            _ob_prev = 1 * size;
-            n = 2;
-#endif
-            ob_refcnt = (n + 0) * size;
-            ob_type = (n + 1) * size;
-        }
-
-        public static int Size { get { return size; } }
-
-        private static readonly int size =
-#if PYTHON_WITH_PYDEBUG
-            4 * IntPtr.Size;
-#else
-            2 * IntPtr.Size;
-#endif
-
-#if PYTHON_WITH_PYDEBUG
-        public static int _ob_next;
-        public static int _ob_prev;
-#endif
-        public static int ob_refcnt;
-        public static int ob_type;
-    }
-
-    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
-    internal class ObjectOffset
-    {
-        static ObjectOffset()
-        {
-#if PYTHON_WITH_PYDEBUG
-            _ob_next = OriginalObjectOffsets._ob_next;
-            _ob_prev = OriginalObjectOffsets._ob_prev;
-#endif
-            ob_refcnt = OriginalObjectOffsets.ob_refcnt;
-            ob_type = OriginalObjectOffsets.ob_type;
-
-            size = OriginalObjectOffsets.Size + ManagedDataOffsets.Size;
-        }
-
-        public static int magic(IntPtr type)
-        {
-            return ManagedDataOffsets.DataOffset(type);
-        }
-
-        public static int TypeDictOffset(IntPtr type)
-        {
-            Debug.Assert(TypeOffset.tp_dictoffset > 0);
-            int dictOffset = Marshal.ReadInt32(type, TypeOffset.tp_dictoffset);
-            Debug.Assert(dictOffset > 0);
-            return dictOffset;
-        }
-
-        public static int Size(IntPtr pyType)
-        {
-            if (IsException(pyType))
-            {
-                return ExceptionOffset.Size();
-            }
-
-            return size;
-        }
-
-#if PYTHON_WITH_PYDEBUG
-        public static int _ob_next;
-        public static int _ob_prev;
-#endif
-        public static int ob_refcnt;
-        public static int ob_type;
-        private static readonly int size;
-
-        private static bool IsException(IntPtr pyObjectPtr)
-        {
-            var pyObject = new BorrowedReference(pyObjectPtr);
-            var type = Runtime.PyObject_TYPE(pyObject);
-            return Runtime.PyType_IsSameAsOrSubtype(type, ofType: Exceptions.BaseException)
-                || Runtime.PyType_IsSameAsOrSubtype(type, ofType: Runtime.PyTypeType)
-                && Runtime.PyType_IsSubtype(pyObject, Exceptions.BaseException);
-        }
-    }
-
-    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
-    internal class ExceptionOffset
-    {
-        static ExceptionOffset()
-        {
-            Type type = typeof(ExceptionOffset);
-            FieldInfo[] fi = type.GetFields(BindingFlags.Static | BindingFlags.Public);
-            for (int i = 0; i < fi.Length; i++)
-            {
-                fi[i].SetValue(null, (i * IntPtr.Size) + OriginalObjectOffsets.Size);
-            }
-
-            size = fi.Length * IntPtr.Size + OriginalObjectOffsets.Size + ManagedDataOffsets.Size;
-        }
-
-        public static int Size() { return size; }
-
-        // PyException_HEAD
-        // (start after PyObject_HEAD)
-        public static int dict = 0;
-        public static int args = 0;
-        public static int traceback = 0;
-        public static int context = 0;
-        public static int cause = 0;
-        public static int suppress_context = 0;
-
-        private static readonly int size;
-    }
-
-
-    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
-    internal class BytesOffset
-    {
-        static BytesOffset()
-        {
-            Type type = typeof(BytesOffset);
-            FieldInfo[] fi = type.GetFields();
-            int size = IntPtr.Size;
-            for (int i = 0; i < fi.Length; i++)
-            {
-                fi[i].SetValue(null, i * size);
-            }
-        }
-
-        /* The *real* layout of a type object when allocated on the heap */
-        //typedef struct _heaptypeobject {
-#if PYTHON_WITH_PYDEBUG
-/* _PyObject_HEAD_EXTRA defines pointers to support a doubly-linked list of all live heap objects. */
-        public static int _ob_next = 0;
-        public static int _ob_prev = 0;
-#endif
-        // PyObject_VAR_HEAD {
-        //     PyObject_HEAD {
-        public static int ob_refcnt = 0;
-        public static int ob_type = 0;
-        // }
-        public static int ob_size = 0; /* Number of items in _VAR_iable part */
-        // }
-        public static int ob_shash = 0;
-        public static int ob_sval = 0; /* start of data */
-
-        /* Invariants:
-         *     ob_sval contains space for 'ob_size+1' elements.
-         *     ob_sval[ob_size] == 0.
-         *     ob_shash is the hash of the string or -1 if not computed yet.
-         */
-        //} PyBytesObject;
-    }
-
-    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
-    internal class ModuleDefOffset
-    {
-        static ModuleDefOffset()
-        {
-            Type type = typeof(ModuleDefOffset);
-            FieldInfo[] fi = type.GetFields();
-            int size = IntPtr.Size;
-            for (int i = 0; i < fi.Length; i++)
-            {
-                fi[i].SetValue(null, (i * size) + TypeOffset.ob_size);
-            }
-        }
-
-        public static IntPtr AllocModuleDef(string modulename)
-        {
-            byte[] ascii = Encoding.ASCII.GetBytes(modulename);
-            int size = name + ascii.Length + 1;
-            IntPtr ptr = Marshal.AllocHGlobal(size);
-            for (int i = 0; i <= m_free; i += IntPtr.Size)
-                Marshal.WriteIntPtr(ptr, i, IntPtr.Zero);
-            Marshal.Copy(ascii, 0, (IntPtr)(ptr + name), ascii.Length);
-            Marshal.WriteIntPtr(ptr, m_name, (IntPtr)(ptr + name));
-            Marshal.WriteByte(ptr, name + ascii.Length, 0);
            return ptr;
-        }
-
-        public static void FreeModuleDef(IntPtr ptr)
-        {
-            Marshal.FreeHGlobal(ptr);
-        }
-
-        // typedef struct PyModuleDef{
-        //  typedef struct PyModuleDef_Base {
-        // starts after PyObject_HEAD (TypeOffset.ob_type + 1)
-        public static int m_init = 0;
-        public static int m_index = 0;
-        public static int m_copy = 0;
-        //  } PyModuleDef_Base
-        public static int m_name = 0;
-        public static int m_doc = 0;
-        public static int m_size = 0;
-        public static int m_methods = 0;
-        public static int m_reload = 0;
-        public static int m_traverse = 0;
-        public static int m_clear = 0;
-        public static int m_free = 0;
-        // } PyModuleDef
-
-        public static int name = 0;
-    }
-
-
     /// <summary>
     /// TypeFlags(): The actual bit values for the Type Flags stored
     /// in a class.