C# TypeInfo类代码示例

 private void EnumDCInterfaceMembers(TypeInfo info, EnumMembersHandler handler) {
     var generatedEntityInfo = info.FindDCXPClassInfo();
     var dcPropertyInfos = DCPropertyInfos(generatedEntityInfo);
     foreach (DCPropertyInfo dcPropertyInfo in dcPropertyInfos){
         handler(dcPropertyInfo, dcPropertyInfo.Name);
     }
 }

        /// <summary>
        /// Prompts the user to edit a value.
        /// </summary>
        public Variant ShowDialog(Session session, NodeId nodeId)
        {
            m_session = session;
            m_nodeId = nodeId;

            #region Task #B2 - Write Value
            // generate a default value based on the data type.
            m_value = Variant.Null;
            m_sourceType = GetExpectedType(session, nodeId);

            if (m_sourceType != null)
            {
                m_value = new Variant(TypeInfo.GetDefaultValue(m_sourceType.BuiltInType), m_sourceType);
            }

            // cast the value to a string.
            ValueTB.Text = (string)TypeInfo.Cast(m_value.Value, m_value.TypeInfo, BuiltInType.String);
            #endregion

            if (ShowDialog() != DialogResult.OK)
            {
                return Variant.Null;
            }

            return m_value;
        }

        public void ShouldSetTypePropertyWhenPassingTypeInfoToConstructor()
        {
            var typeInfo = new TypeInfo(typeof(CustomClass));
            var dynamicObject = new DynamicObject(typeInfo);

            dynamicObject.Type.ShouldBe(typeInfo);
        }

 LocalInfo(TypeInfo type, String name, int index, Label beginLabel, Label endLabel) {
     this.type = type;
     this.name = name;
     this.index = index;
     this.beginLabel = beginLabel;
     this.endLabel = endLabel;
 }

        public override FlatOperand Resolve(ExpressionSyntax expression, ArgumentListSyntax argumentList, TypeInfo result_type, SymbolInfo si, FlatOperand into_lvalue, Function function, List<FlatStatement> instructions)
        {
            FlatOperand fop_subject;
            if (expression is IdentifierNameSyntax)
            {
                // typeof this
                fop_subject = FlatOperand.ThisRef(FlatValue.FromType(result_type.ConvertedType));
            }
            else if (expression is MemberAccessExpressionSyntax)
            {
                MemberAccessExpressionSyntax meas = (MemberAccessExpressionSyntax)expression;

                fop_subject = function.ResolveExpression(meas.Expression, null, instructions);
            }
            else
            {
                throw new NotImplementedException("GetMetaTable on expression type " + expression.GetType().ToString());
            }

            if (into_lvalue == null)
            {
                FlatOperand fop_register = function.AllocateRegister("");
                into_lvalue = fop_register.GetLValue(function, instructions);
            }
            instructions.Add(FlatStatement.GETMETATABLE(into_lvalue, fop_subject));
            return into_lvalue.AsRValue(FlatValue.Table());
        }

        public void It_can_create_a_deep_clone_of_itself()
        {
            var type1 = new TypeInfo
                        {
                            Name = "MyType",
                            Kind = TypeKind.Class,
                            Obsolete = true,
                            ObsoleteMessage = "I'm obsolete!",
                            Members =
                                {
                                    new MemberInfo
                                    {
                                        Changes = { new MemberChangeInfo() }
                                    }
                                },
                            Changes =
                                {
                                    new TypeChangeInfo()
                                }
                        };

            var type2 = type1.Clone();

            Assert.AreNotSame(type1, type2);
            Assert.AreEqual(type1.Name, type2.Name);
            Assert.AreEqual(type1.Kind, type2.Kind);
            Assert.AreEqual(type1.Obsolete, type2.Obsolete);
            Assert.AreEqual(type1.ObsoleteMessage, type2.ObsoleteMessage);
            Assert.AreNotSame(type1.Members, type2.Members);
            Assert.AreNotSame(type1.Members.Single(), type2.Members.Single());
            Assert.AreNotSame(type1.Members.Single().Changes.Single(), type2.Members.Single().Changes.Single());
            Assert.AreNotSame(type1.Changes, type2.Changes);
            Assert.AreNotSame(type1.Changes.Single(), type2.Changes.Single());
        }

        public void It_detects_Obsolete_attributes()
        {
            var typeInfo = new TypeInfo();

            typeInfo.ReadType(Compiler.GetType(
            @"namespace MyNamespace
            {
            [System.Obsolete(""This class is obsolete!"")]
            public class MyClass
            {
            [System.Obsolete(""This constructor is obsolete!"")]
            public MyClass() { }
            [System.Obsolete(""This method is obsolete!"")]
            public void MyMethod() { }
            [System.Obsolete(""This property is obsolete!"")]
            public int MyProperty { get; set; }
            [System.Obsolete(""This event is obsolete!"")]
            public event System.EventHandler MyEvent;
            [System.Obsolete(""This field is obsolete!"")]
            public int MyField;
            }
            }"));
            Assert.IsTrue(typeInfo.Obsolete);
            Assert.AreEqual("This class is obsolete!", typeInfo.ObsoleteMessage);
            Assert.IsTrue(typeInfo.Members.Single(m => m.Name == ".ctor").Obsolete);
            Assert.AreEqual("This constructor is obsolete!", typeInfo.Members.Single(m => m.Name == ".ctor").ObsoleteMessage);
            Assert.IsTrue(typeInfo.Members.Single(m => m.Name == "MyMethod").Obsolete);
            Assert.AreEqual("This method is obsolete!", typeInfo.Members.Single(m => m.Name == "MyMethod").ObsoleteMessage);
            Assert.IsTrue(typeInfo.Members.Single(m => m.Name == "MyProperty").Obsolete);
            Assert.AreEqual("This property is obsolete!", typeInfo.Members.Single(m => m.Name == "MyProperty").ObsoleteMessage);
            Assert.IsTrue(typeInfo.Members.Single(m => m.Name == "MyEvent").Obsolete);
            Assert.AreEqual("This event is obsolete!", typeInfo.Members.Single(m => m.Name == "MyEvent").ObsoleteMessage);
            Assert.IsTrue(typeInfo.Members.Single(m => m.Name == "MyField").Obsolete);
            Assert.AreEqual("This field is obsolete!", typeInfo.Members.Single(m => m.Name == "MyField").ObsoleteMessage);
        }

        public static TypeInfo Create(Type rootType, Func<Type, IEntityMetaDataProvider> provider)
        {
            if (null == rootType)
                throw new ArgumentNullException(nameof(rootType));
            if (null == provider)
                throw new ArgumentNullException(nameof(provider));

            TypeInfo typeInfo = new TypeInfo();

            typeInfo.Id = rootType.FullName; //NosQL Id.

            typeInfo.Pageable = rootType.GetCustomAttribute<GridPageableAttribute>();


            typeInfo.Sortable = rootType.GetCustomAttribute<GridSortableAttribute>();

            typeInfo.Filterable = rootType.GetCustomAttribute<GridFilterableAttribute>();

            typeInfo.Editable = rootType.GetCustomAttribute<GridEditableAttribute>();

            GridAttribute ga = rootType.GetCustomAttribute<GridAttribute>();
            if (null != ga)
            {
                typeInfo.Groupable = ga.Groupable;
                typeInfo.Height = ga.Height;
            }


            LoadFields(typeInfo, null, rootType, provider);

            return typeInfo;
        }

 ExpressionInfo(TypeInfo type, Object value) {
     this.Type = type;
     this.Value = value;
     this.IsConstant = true;
     this.BoxingKind = BoxingKind.None;
     this.Negate = true;
 }

        public override void CheckSemantic(Scope scope, List<Error> errors)
        {
            countLoop++;
            //chekeo la semantica de la expr inicial
            ExprFor.CheckSemantic(scope, errors);

            //si el tipo de retorno no es int lanzo un error
            if (ExprFor.ReturnType!= null && ExprFor.ReturnType.BaseType.Name != "int")
                errors.Add(new Error(Row, Col, "The first expression of <for> must be an int"));

            //chekeo la semantica de la expr final
            ExprTo.CheckSemantic(scope, errors);
            //si no tiene errores esa expr

            //si el tipo de retorno no es int lanzo un error
            if (ExprTo.ReturnType != null && ExprTo.ReturnType.BaseType.Name != "int")
                errors.Add(new Error(Row, Col, "The To'expression of <for> must be an int"));

            //creo un nuevo scope
            Scope for_scope = new Scope(scope);
            //agrego la var de ciclo
            for_scope.Variables.Add(IdLoop, new VarInfo(IdLoop, scope.ExistType("int")));

            for_scope.IdLoop = IdLoop;

            ExprDo.CheckSemantic(for_scope, errors);

            ReturnType = new TypeInfo("void", null, TypeDecl.Base);
            countLoop--;
        }

 public ConventionInfo()
 {
     Source = new TypeInfo();
     Target = new TypeInfo();
     SourceProp = new PropInfo();
     TargetProp = new PropInfo();
 }

        public TypeInfo GetTypeInfo(Type type)
        {
            if (!_typeInfos.ContainsKey(type))
            {
                var typeInfo = new TypeInfo
                    {
                        Id = _typeInfos.Count,
                        TypeName = type.AssemblyQualifiedName,
                        IsEnumerable = type.IsImplOf<IEnumerable>()
                    };

                if (!typeInfo.IsEnumerable)
                {
                    var propertyInfos = type.GetProperties();
                    var propertyNames = new SimpleList<string>();
                    foreach (var propertyInfo in propertyInfos)
                    {
                        if (!IsAValidProperty(propertyInfo)) continue;
                        propertyNames.Add(propertyInfo.Name);
                    }
                    typeInfo.PropertyNames = propertyNames;
                }

                _typeInfos.Add(type, typeInfo);
                return typeInfo;
            }
            return _typeInfos[type];
        }

 public static void TypeInfo_CustomAttributes(TypeInfo typeInfo)
 {
     String typeName = typeInfo.NameString();
     if (typeName == null)
         return;
     ReflectionEventSource.Log.TypeInfo_CustomAttributes(typeName);
 }

        public When_resolving_two_types_with_same_name()
        {
            var a = new A { Int32Value = 0, StringValue = "" };
            var b = new { Int32Value = 0, StringValue = "" };

            var typeInfoA = new TypeInfo(a.GetType());
            var typeInfoB = new TypeInfo(b.GetType());

            typeInfoA.Name = "TestTypeName";
            typeInfoB.Name = "TestTypeName";

            typeInfoA.Namespace = "TestNamespace";
            typeInfoB.Namespace = "TestNamespace";

            typeInfoA.DeclaringType = null;
            typeInfoB.DeclaringType = null;

            var typeResolver = new TypeResolver();

            resolvedTypeA1 = typeResolver.ResolveType(typeInfoA);
            resolvedTypeB1 = typeResolver.ResolveType(typeInfoB);

            resolvedTypeA2 = typeResolver.ResolveType(typeInfoA);
            resolvedTypeB2 = typeResolver.ResolveType(typeInfoB);
        }

        public override void CheckSemantic(Scope scope, List<Error> errors)
        {
            string id_var = "";
            //chekeo la semantica del lvalue
            LeftExpr.CheckSemantic(scope, errors);
            TypeInfo t = LeftExpr.ReturnType;

            //en el caso de q sea una variable guardo
            //su valor para despues compararlo con el id del ciclo
            if (LeftExpr is VariableNode)
                id_var = ((VariableNode)LeftExpr).Value;

            //chekeo la semantica del rvalue
            RigthExpr.CheckSemantic(scope, errors);
            TypeInfo t1 = RigthExpr.ReturnType;

            if (t != null && t1 != null && t.Name != t1.Name)
            {
                if (t1.Name == "nil")
                {
                    if (t.Name == "int")
                        errors.Add(new Error(Row, Col, string.Format("Cannot assign nil to an int")));
                }
                else if(t1.Name == "void")
                    errors.Add(new Error(Row, Col, string.Format("The expression that try assign to \"{0}\" not return value", t.Name)));
                else
                    errors.Add(new Error(Row, Col, string.Format("Cannot asssign  \"{0}\" to  \"{1}\"", t1.Name, t.Name)));
            }
            else
            {
                if (countLoop >0  && id_var == scope.IdLoop)
                    errors.Add(new Error(Row, Col, string.Format("Cannot assign any value to variable \"{0}\" of <for>", scope.IdLoop)));
            }
            ReturnType = new TypeInfo("void", null, TypeDecl.Base);
        }