Python System.Reflection() Examples

The following are 18 code examples of System.Reflection(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module System , or try the search function .
Example #1
Source File: test_reachtype.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up 
def test_type_from_reflection_emit(self):
        import clr
        import System
        if is_netcoreapp:
            clr.AddReference("System.Reflection.Emit")

        sr = System.Reflection
        sre = System.Reflection.Emit
        array = System.Array
        cab = array[sre.CustomAttributeBuilder]([sre.CustomAttributeBuilder(clr.GetClrType(System.Security.SecurityTransparentAttribute).GetConstructor(System.Type.EmptyTypes), array[object]([]))])
        if is_netcoreapp: # no System.AppDomain.DefineDynamicAssembly
            ab = sre.AssemblyBuilder.DefineDynamicAssembly(sr.AssemblyName("temp"), sre.AssemblyBuilderAccess.Run, cab)  # tracking: 291888
        else:
            ab = System.AppDomain.CurrentDomain.DefineDynamicAssembly(sr.AssemblyName("temp"), sre.AssemblyBuilderAccess.RunAndSave, "temp", None, None, None, None, True, cab)  # tracking: 291888

        mb = ab.DefineDynamicModule("temp", "temp.dll")
        tb = mb.DefineType("EmittedNS.EmittedType", sr.TypeAttributes.Public)
        tb.CreateType()

        clr.AddReference(ab)
        import EmittedNS
        EmittedNS.EmittedType()
Example #2
Source File: test_missing.py    From ironpython2 with Apache License 2.0 6 votes vote down vote up 
def CreateAssemblyGenerator(path, name):
    dir = IO.Path.GetDirectoryName(path)
    file = IO.Path.GetFileName(path)

    aname = Reflection.AssemblyName(name)
    domain = System.AppDomain.CurrentDomain
    ab = domain.DefineDynamicAssembly(aname, Emit.AssemblyBuilderAccess.RunAndSave, dir, None)
    mb = ab.DefineDynamicModule(file, file, True);

    ab.DefineVersionInfoResource()

    constructor = clr.GetClrType(Diagnostics.DebuggableAttribute).GetConstructor(MakeArray(System.Type, clr.GetClrType(Diagnostics.DebuggableAttribute.DebuggingModes)))
    attributeValue = MakeArray(System.Object,
        Diagnostics.DebuggableAttribute.DebuggingModes.Default |
        Diagnostics.DebuggableAttribute.DebuggingModes.DisableOptimizations |
        Diagnostics.DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints
    )
    cab = Emit.CustomAttributeBuilder(constructor, attributeValue)

    ab.SetCustomAttribute(cab)
    mb.SetCustomAttribute(cab)

    return AssemblyGenerator(file, ab, mb, None)
Example #3
Source File: test_missing.py    From ironpython3 with Apache License 2.0 6 votes vote down vote up 
def CreateAssemblyGenerator(path, name):
    dir = IO.Path.GetDirectoryName(path)
    file = IO.Path.GetFileName(path)

    aname = Reflection.AssemblyName(name)
    domain = System.AppDomain.CurrentDomain
    ab = domain.DefineDynamicAssembly(aname, Emit.AssemblyBuilderAccess.RunAndSave, dir, None)
    mb = ab.DefineDynamicModule(file, file, True);

    ab.DefineVersionInfoResource()

    constructor = clr.GetClrType(Diagnostics.DebuggableAttribute).GetConstructor(MakeArray(System.Type, clr.GetClrType(Diagnostics.DebuggableAttribute.DebuggingModes)))
    attributeValue = MakeArray(System.Object,
        Diagnostics.DebuggableAttribute.DebuggingModes.Default |
        Diagnostics.DebuggableAttribute.DebuggingModes.DisableOptimizations |
        Diagnostics.DebuggableAttribute.DebuggingModes.IgnoreSymbolStoreSequencePoints
    )
    cab = Emit.CustomAttributeBuilder(constructor, attributeValue)

    ab.SetCustomAttribute(cab)
    mb.SetCustomAttribute(cab)

    return AssemblyGenerator(file, ab, mb, None)
Example #4
Source File: test_reachtype.py    From ironpython2 with Apache License 2.0 6 votes vote down vote up 
def test_type_from_reflection_emit(self):
        import clr
        import System
        if is_netcoreapp:
            clr.AddReference("System.Reflection.Emit")
        
        sr = System.Reflection
        sre = System.Reflection.Emit
        array = System.Array
        cab = array[sre.CustomAttributeBuilder]([sre.CustomAttributeBuilder(clr.GetClrType(System.Security.SecurityTransparentAttribute).GetConstructor(System.Type.EmptyTypes), array[object]([]))])
        if is_netcoreapp: # no System.AppDomain.DefineDynamicAssembly
            ab = sre.AssemblyBuilder.DefineDynamicAssembly(sr.AssemblyName("temp"), sre.AssemblyBuilderAccess.Run, cab)  # tracking: 291888
        else:
            ab = System.AppDomain.CurrentDomain.DefineDynamicAssembly(sr.AssemblyName("temp"), sre.AssemblyBuilderAccess.RunAndSave, "temp", None, None, None, None, True, cab)  # tracking: 291888

        mb = ab.DefineDynamicModule("temp", "temp.dll")
        tb = mb.DefineType("EmittedNS.EmittedType", sr.TypeAttributes.Public)
        tb.CreateType()
            
        clr.AddReference(ab)
        import EmittedNS
        EmittedNS.EmittedType()
Example #5
Source File: test_missing.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def DefineType(self, name):
        return TypeGenerator(self, self.mb.DefineType(name, Reflection.TypeAttributes.Public))
Example #6
Source File: test_assembly.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_type(self):
        from System.Reflection import Assembly
        from System.Reflection.Emit import AssemblyBuilder
        mscorlib = Assembly.Load("mscorlib")
        self.assertTrue("Assembly" in repr(mscorlib))
        self.assertGreaterEqual(len(dir(Assembly)), 75)
        self.assertGreaterEqual(len(dir(AssemblyBuilder)), 89)
Example #7
Source File: test_assembly.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_assemblybuilder_instance(self):
        import System
        name = System.Reflection.AssemblyName()
        name.Name = 'Test'
        assemblyBuilder = System.AppDomain.CurrentDomain.DefineDynamicAssembly(name, System.Reflection.Emit.AssemblyBuilderAccess.Run)
        
        asm_builder_dir = dir(assemblyBuilder)
        self.assertGreaterEqual(len(asm_builder_dir), 89)
        self.assertTrue("GetCustomAttributesData" in asm_builder_dir)
            
        self.assertTrue("AddResourceFile" in asm_builder_dir)
        self.assertTrue("CreateInstance" in asm_builder_dir)
Example #8
Source File: test_clrtype.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_pinvoke_method(self):
        self.assertTrue(NativeMethods.IsCharAlpha('A'))
        # Call statically-typed method from another .NET language (simulated using Reflection)
        isCharAlpha = clr.GetClrType(NativeMethods).GetMethod('IsCharAlpha')
        args = System.Array[object](('1'.Chars[0],))
        self.assertFalse(isCharAlpha.Invoke(None, args))
Example #9
Source File: test_missing.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def Save(self):
        self.ab.Save(self.fileName, Reflection.PortableExecutableKinds.ILOnly, Reflection.ImageFileMachine.I386);
Example #10
Source File: test_missing.py    From ironpython2 with Apache License 2.0 5 votes vote down vote up 
def DefineType(self, name):
        return TypeGenerator(self, self.mb.DefineType(name, Reflection.TypeAttributes.Public))
Example #11
Source File: test_assembly.py    From ironpython2 with Apache License 2.0 5 votes vote down vote up 
def test_type(self):
        from System.Reflection import Assembly
        from System.Reflection.Emit import AssemblyBuilder
        mscorlib = Assembly.Load("mscorlib")
        self.assertTrue("Assembly" in repr(mscorlib))
        self.assertGreaterEqual(len(dir(Assembly)), 75)
        self.assertGreaterEqual(len(dir(AssemblyBuilder)), 89)
Example #12
Source File: test_assembly.py    From ironpython2 with Apache License 2.0 5 votes vote down vote up 
def test_assemblybuilder_instance(self):
        import System
        name = System.Reflection.AssemblyName()
        name.Name = 'Test'
        assemblyBuilder = System.AppDomain.CurrentDomain.DefineDynamicAssembly(name, System.Reflection.Emit.AssemblyBuilderAccess.Run)
        
        asm_builder_dir = dir(assemblyBuilder)
        self.assertGreaterEqual(len(asm_builder_dir), 89)
        self.assertTrue("GetCustomAttributesData" in asm_builder_dir)
            
        self.assertTrue("AddResourceFile" in asm_builder_dir)
        self.assertTrue("CreateInstance" in asm_builder_dir)
Example #13
Source File: test_clrtype.py    From ironpython2 with Apache License 2.0 5 votes vote down vote up 
def test_pinvoke_method(self):
        self.assertTrue(NativeMethods.IsCharAlpha('A'))
        # Call statically-typed method from another .NET language (simulated using Reflection)
        isCharAlpha = clr.GetClrType(NativeMethods).GetMethod('IsCharAlpha')
        args = System.Array[object](('1'.Chars[0],))
        self.assertFalse(isCharAlpha.Invoke(None, args))
Example #14
Source File: test_missing.py    From ironpython2 with Apache License 2.0 5 votes vote down vote up 
def Save(self):
        self.ab.Save(self.fileName, Reflection.PortableExecutableKinds.ILOnly, Reflection.ImageFileMachine.I386);
Example #15
Source File: test___clrtype__.py    From ironpython2 with Apache License 2.0 4 votes vote down vote up 
def test_sanity_override_constructors(self):
        '''
        Create a new CLR Type and override all of its constructors.
        '''
        self.add_reference_to_dlr_core()
        
        from System import Reflection
        from Microsoft.Scripting.Generation import AssemblyGen
        from System.Reflection import Emit, FieldAttributes
        from System.Reflection.Emit import OpCodes    
        gen = AssemblyGen(Reflection.AssemblyName('test'), None, '.dll', False)
        
        try:
            class MyType(type):
                def __clrtype__(self):
                    baseType = super(MyType, self).__clrtype__()
                    t = gen.DefinePublicType(self.__name__, baseType, True)
                    
                    ctors = baseType.GetConstructors()
                    for ctor in ctors:            
                        builder = t.DefineConstructor(
                            Reflection.MethodAttributes.Public, 
                            Reflection.CallingConventions.Standard, 
                            tuple([p.ParameterType for p in ctor.GetParameters()])
                        )
                        ilgen = builder.GetILGenerator()
                        ilgen.Emit(OpCodes.Ldarg, 0)
                        for index in range(len(ctor.GetParameters())):
                            ilgen.Emit(OpCodes.Ldarg, index + 1)
                        ilgen.Emit(OpCodes.Call, ctor)
                        ilgen.Emit(OpCodes.Ret)
                    
                    newType = t.CreateType()
                    return newType
            
            class X(object):
                __metaclass__ = MyType
                def __init__(self):
                    self.abc = 3
                
            a = X()
            self.assertEqual(a.abc, 3)
            
        finally:
            #gen.SaveAssembly()
            pass
Example #16
Source File: test_missing.py    From ironpython3 with Apache License 2.0 4 votes vote down vote up 
def EmitTestMethod(tg, name, argType):
    cg = tg.DefineMethod(name, Reflection.MethodAttributes.Public | Reflection.MethodAttributes.Static, str, argType)
    pb = cg.mb.DefineParameter(1, Reflection.ParameterAttributes.In | Reflection.ParameterAttributes.Optional, "o");

    tostring = cg.ilg.DeclareLocal(str)

    baseType = argType
    if baseType.IsByRef:
        baseType = baseType.GetElementType()

    if not baseType.IsValueType:
        is_null = cg.ilg.DefineLabel()
        end = cg.ilg.DefineLabel()
        EmitArg(cg, argType)
        cg.ilg.Emit(OpCodes.Brfalse_S, is_null)
        cg.ilg.BeginExceptionBlock()
        EmitArg(cg, argType)
        cg.ilg.EmitCall(OpCodes.Callvirt, clr.GetClrType(object).GetMethod("ToString"), None)
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.BeginCatchBlock(clr.GetClrType(System.Exception))
        cg.ilg.Emit(OpCodes.Callvirt, clr.GetClrType(System.Exception).GetMethod("get_Message"))
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.Emit(OpCodes.Ldstr, "#EXCEPTION#")
        cg.ilg.Emit(OpCodes.Ldloc, tostring)
        cg.ilg.EmitCall(OpCodes.Call, clr.GetClrType(str).GetMethod("Concat", MakeArray(System.Type, clr.GetClrType(System.String), clr.GetClrType(System.String))), None)
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.EndExceptionBlock()
        cg.ilg.Emit(OpCodes.Br_S, end);
        cg.ilg.MarkLabel(is_null)
        cg.ilg.Emit(OpCodes.Ldstr, "(null)")
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.MarkLabel(end)
    else:
        cg.ilg.BeginExceptionBlock()
        EmitArg(cg, argType)
        cg.ilg.Emit(OpCodes.Box, baseType);
        cg.ilg.EmitCall(OpCodes.Callvirt, clr.GetClrType(object).GetMethod("ToString"), None)
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.BeginCatchBlock(clr.GetClrType(System.Exception))
        cg.ilg.Emit(OpCodes.Callvirt, clr.GetClrType(System.Exception).GetMethod("get_Message"))
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.Emit(OpCodes.Ldstr, "#EXCEPTION#")
        cg.ilg.Emit(OpCodes.Ldloc, tostring)
        cg.ilg.EmitCall(OpCodes.Call, clr.GetClrType(System.String).GetMethod("Concat", MakeArray(System.Type, clr.GetClrType(System.String), clr.GetClrType(System.String))), None)
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.EndExceptionBlock()

    cg.ilg.Emit(OpCodes.Ldstr, name + "$" + argType.FullName + "$")
    cg.ilg.Emit(OpCodes.Ldloc, tostring)
    cg.ilg.EmitCall(OpCodes.Call, clr.GetClrType(System.String).GetMethod("Concat", MakeArray(System.Type, clr.GetClrType(System.String), clr.GetClrType(System.String))), None)
    if trace:
        cg.ilg.Emit(OpCodes.Dup)
        cg.ilg.EmitCall(OpCodes.Call, clr.GetClrType(System.Console).GetMethod("WriteLine", MakeArray(System.Type, clr.GetClrType(System.String))), None)
    cg.ilg.Emit(OpCodes.Ret)
Example #17
Source File: test_missing.py    From ironpython2 with Apache License 2.0 4 votes vote down vote up 
def EmitTestMethod(tg, name, argType):
    cg = tg.DefineMethod(name, Reflection.MethodAttributes.Public | Reflection.MethodAttributes.Static, str, argType)
    pb = cg.mb.DefineParameter(1, Reflection.ParameterAttributes.In | Reflection.ParameterAttributes.Optional, "o");

    tostring = cg.ilg.DeclareLocal(str)

    baseType = argType
    if baseType.IsByRef:
        baseType = baseType.GetElementType()

    if not baseType.IsValueType:
        is_null = cg.ilg.DefineLabel()
        end = cg.ilg.DefineLabel()
        EmitArg(cg, argType)
        cg.ilg.Emit(OpCodes.Brfalse_S, is_null)
        cg.ilg.BeginExceptionBlock()
        EmitArg(cg, argType)
        cg.ilg.EmitCall(OpCodes.Callvirt, clr.GetClrType(object).GetMethod("ToString"), None)
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.BeginCatchBlock(clr.GetClrType(System.Exception))
        cg.ilg.Emit(OpCodes.Callvirt, clr.GetClrType(System.Exception).GetMethod("get_Message"))
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.Emit(OpCodes.Ldstr, "#EXCEPTION#")
        cg.ilg.Emit(OpCodes.Ldloc, tostring)
        cg.ilg.EmitCall(OpCodes.Call, clr.GetClrType(str).GetMethod("Concat", MakeArray(System.Type, clr.GetClrType(System.String), clr.GetClrType(System.String))), None)
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.EndExceptionBlock()
        cg.ilg.Emit(OpCodes.Br_S, end);
        cg.ilg.MarkLabel(is_null)
        cg.ilg.Emit(OpCodes.Ldstr, "(null)")
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.MarkLabel(end)
    else:
        cg.ilg.BeginExceptionBlock()
        EmitArg(cg, argType)
        cg.ilg.Emit(OpCodes.Box, baseType);
        cg.ilg.EmitCall(OpCodes.Callvirt, clr.GetClrType(object).GetMethod("ToString"), None)
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.BeginCatchBlock(clr.GetClrType(System.Exception))
        cg.ilg.Emit(OpCodes.Callvirt, clr.GetClrType(System.Exception).GetMethod("get_Message"))
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.Emit(OpCodes.Ldstr, "#EXCEPTION#")
        cg.ilg.Emit(OpCodes.Ldloc, tostring)
        cg.ilg.EmitCall(OpCodes.Call, clr.GetClrType(System.String).GetMethod("Concat", MakeArray(System.Type, clr.GetClrType(System.String), clr.GetClrType(System.String))), None)
        cg.ilg.Emit(OpCodes.Stloc, tostring)
        cg.ilg.EndExceptionBlock()

    cg.ilg.Emit(OpCodes.Ldstr, name + "$" + argType.FullName + "$")
    cg.ilg.Emit(OpCodes.Ldloc, tostring)
    cg.ilg.EmitCall(OpCodes.Call, clr.GetClrType(System.String).GetMethod("Concat", MakeArray(System.Type, clr.GetClrType(System.String), clr.GetClrType(System.String))), None)
    if trace:
        cg.ilg.Emit(OpCodes.Dup)
        cg.ilg.EmitCall(OpCodes.Call, clr.GetClrType(System.Console).GetMethod("WriteLine", MakeArray(System.Type, clr.GetClrType(System.String))), None)
    cg.ilg.Emit(OpCodes.Ret)
Example #18
Source File: test___clrtype.py    From ironpython3 with Apache License 2.0 4 votes vote down vote up 
def test_sanity_override_constructors(self):
        '''
        Create a new CLR Type and override all of its constructors.
        '''
        self.add_reference_to_dlr_core()
        
        from System import Reflection
        from Microsoft.Scripting.Generation import AssemblyGen
        from System.Reflection import Emit, FieldAttributes
        from System.Reflection.Emit import OpCodes    
        gen = AssemblyGen(Reflection.AssemblyName('test'), None, '.dll', False)
        
        try:
            class MyType(type):
                def __clrtype__(self):
                    baseType = super(MyType, self).__clrtype__()
                    t = gen.DefinePublicType(self.__name__, baseType, True)
                    
                    ctors = baseType.GetConstructors()
                    for ctor in ctors:            
                        builder = t.DefineConstructor(
                            Reflection.MethodAttributes.Public, 
                            Reflection.CallingConventions.Standard, 
                            tuple([p.ParameterType for p in ctor.GetParameters()])
                        )
                        ilgen = builder.GetILGenerator()
                        ilgen.Emit(OpCodes.Ldarg, 0)
                        for index in range(len(ctor.GetParameters())):
                            ilgen.Emit(OpCodes.Ldarg, index + 1)
                        ilgen.Emit(OpCodes.Call, ctor)
                        ilgen.Emit(OpCodes.Ret)
                    
                    newType = t.CreateType()
                    return newType
            
            class X(object):
                __metaclass__ = MyType
                def __init__(self):
                    self.abc = 3
                
            a = X()
            self.assertEqual(a.abc, 3)
            
        finally:
            #gen.SaveAssembly()
            pass