Exemplo n.º 1
0
        internal static void Initialize(Version version)
        {
            string offsetsClassSuffix = string.Format(CultureInfo.InvariantCulture,
                                                      "{0}{1}", version.Major, version.Minor);

            var thisAssembly = Assembly.GetExecutingAssembly();

            const string nativeTypeOffsetClassName = "Python.Runtime.NativeTypeOffset";
            string       className          = "Python.Runtime.TypeOffset" + offsetsClassSuffix;
            Type         nativeOffsetsClass = thisAssembly.GetType(nativeTypeOffsetClassName, throwOnError: false);
            Type         typeOffsetsClass   =
                // Try platform native offsets first. It is only present when generated by setup.py
                nativeOffsetsClass ?? thisAssembly.GetType(className, throwOnError: false);

            if (typeOffsetsClass is null)
            {
                var    types   = thisAssembly.GetTypes().Select(type => type.Name).Where(name => name.StartsWith("TypeOffset"));
                string message = $"Searching for {className}, found {string.Join(",", types)}.";
                throw new NotSupportedException($"Python ABI v{version} is not supported: {message}");
            }

            var typeOffsets = (ITypeOffsets)Activator.CreateInstance(typeOffsetsClass);

            TypeOffset.Use(typeOffsets, nativeOffsetsClass == null ? ObjectHeadOffset : 0);
        }
Exemplo n.º 2
0
        internal static void Initialize(Version version, BorrowedReference pyType)
        {
            string offsetsClassSuffix = string.Format(CultureInfo.InvariantCulture,
                                                      "{0}{1}", version.Major, version.Minor);

            var thisAssembly = Assembly.GetExecutingAssembly();

            const string nativeTypeOffsetClassName = "Python.Runtime.NativeTypeOffset";
            string       className        = "Python.Runtime.TypeOffset" + offsetsClassSuffix;
            Type         typeOffsetsClass =
                // Try platform native offsets first. It is only present when generated by setup.py
                thisAssembly.GetType(nativeTypeOffsetClassName, throwOnError: false)
                ?? thisAssembly.GetType(className, throwOnError: false);

            if (typeOffsetsClass is null)
            {
                var    types   = thisAssembly.GetTypes().Select(type => type.Name).Where(name => name.StartsWith("TypeOffset"));
                string message = $"Searching for {className}, found {string.Join(",", types)}. " +
                                 "If you are building Python.NET from source, make sure you have run 'python setup.py configure' to fill in configured.props";
                throw new NotSupportedException($"Python ABI v{version} is not supported: {message}");
            }
            var typeOffsets = (ITypeOffsets)Activator.CreateInstance(typeOffsetsClass);

            TypeOffset.Use(typeOffsets);

            ManagedDataOffsets.Magic = Marshal.ReadInt32(pyType.DangerousGetAddress(), TypeOffset.tp_basicsize);
        }
Exemplo n.º 3
0
        internal static void Initialize(Version version, BorrowedReference pyType)
        {
            string offsetsClassSuffix = string.Format(CultureInfo.InvariantCulture,
                                                      "{0}{1}", version.Major, version.Minor);

            var thisAssembly = Assembly.GetExecutingAssembly();

            const string nativeTypeOffsetClassName = "Python.Runtime.NativeTypeOffset";
            string       className        = "Python.Runtime.TypeOffset" + offsetsClassSuffix;
            Type         typeOffsetsClass =
                // Try platform native offsets first. It is only present when generated by setup.py
                thisAssembly.GetType(nativeTypeOffsetClassName, throwOnError: false)
                ?? thisAssembly.GetType(className, throwOnError: false);

            if (typeOffsetsClass is null)
            {
                throw new NotSupportedException($"Python ABI v{version} is not supported");
            }
            var typeOffsets = (ITypeOffsets)Activator.CreateInstance(typeOffsetsClass);

            TypeOffset.Use(typeOffsets);

            ManagedDataOffsets.Magic = Marshal.ReadInt32(pyType.DangerousGetAddress(), TypeOffset.tp_basicsize);
        }