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C# CodeWriter.GetLiteralType方法代码示例

本文整理汇总了C#中CodeWriter.GetLiteralType方法的典型用法代码示例。如果您正苦于以下问题:C# CodeWriter.GetLiteralType方法的具体用法?C# CodeWriter.GetLiteralType怎么用?C# CodeWriter.GetLiteralType使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在CodeWriter的用法示例。


在下文中一共展示了CodeWriter.GetLiteralType方法的5个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: WriteClassParent


//.........这里部分代码省略.........
                    // 1.2. or HasLoadedOrAssignedValue is false (but why?)
                    // 2. implementations before change
                    // 3. if previous value not null
                    // 3.1. place parent in temp variable
                    // 3.2. set [Storage].Entity to null
                    // 3.3. remove it from parent list
                    // 4. assign value to [Storage].Entity
                    // 5. if value is not null
                    // 5.1. add it to parent list
                    // 5.2. set FK members with entity keys
                    // 6. else
                    // 6.1. set FK members to defaults (null or 0)
                    // 7. implementationas after change

                    //writer.WriteLine(writer.GetStatement(writer.GetAssignmentExpression(storage, writer.GetPropertySetValueExpression())));
                    var entityMember = writer.GetMemberExpression(parent.Storage, "Entity");
                    // 1.1
                    using (writer.WriteIf(writer.GetDifferentExpression(writer.GetPropertySetValueExpression(),
                                                                        entityMember)))
                    {
                        var otherAssociation = schema.GetReverseAssociation(parent);
                        // 2. code before the change
                        // TODO change interface to require a member instead of a column
                        //foreach (IImplementation implementation in context.Implementations())
                        //    implementation.WritePropertyBeforeSet(writer, ???, context);
                        // 3.
                        using (writer.WriteIf(writer.GetDifferentExpression(entityMember, writer.GetNullExpression())))
                        {
                            var previousEntityRefName = "previous" + parent.Type;
                            // 3.1.
                            writer.WriteLine(writer.GetStatement(
                                writer.GetVariableDeclarationInitialization(parent.Type, previousEntityRefName, entityMember)
                                ));
                            // 3.2.
                            writer.WriteLine(writer.GetStatement(
                                writer.GetAssignmentExpression(entityMember, writer.GetNullExpression())
                                ));
                            // 3.3.
                            writer.WriteLine(writer.GetStatement(
                                writer.GetMethodCallExpression(
                                    writer.GetMemberExpression(writer.GetMemberExpression(previousEntityRefName, otherAssociation.Member), "Remove"),
                                    writer.GetThisExpression())
                                ));
                        }
                        // 4.
                        writer.WriteLine(writer.GetStatement(
                            writer.GetAssignmentExpression(entityMember, writer.GetPropertySetValueExpression())
                            ));

                        // 5. if value is null or not
                        writer.WriteRawIf(writer.GetDifferentExpression(writer.GetPropertySetValueExpression(), writer.GetNullExpression()));
                        // 5.1.
                        writer.WriteLine(writer.GetStatement(
                            writer.GetMethodCallExpression(
                                writer.GetMemberExpression(writer.GetMemberExpression(writer.GetPropertySetValueExpression(), otherAssociation.Member), "Add"),
                                writer.GetThisExpression())
                            ));

                        // 5.2
                        var table = schema.Tables.Single(t => t.Type.Associations.Contains(parent));
                        var childKeys = parent.TheseKeys.ToArray();
                        var childColumns = (from ck in childKeys select table.Type.Columns.Single(c => c.Member == ck))
                                            .ToArray();
                        var parentKeys = parent.OtherKeys.ToArray();

                        for (int keyIndex = 0; keyIndex < parentKeys.Length; keyIndex++)
                        {
                            writer.WriteLine(writer.GetStatement(writer.GetAssignmentExpression(
                                childColumns[keyIndex].Storage ?? childColumns[keyIndex].Member,
                                writer.GetMemberExpression(writer.GetPropertySetValueExpression(), parentKeys[keyIndex])
                                )));
                        }

                        // 6.
                        writer.WriteRawElse();

                        // 6.1.
                        for (int keyIndex = 0; keyIndex < parentKeys.Length; keyIndex++)
                        {
                            var column = table.Type.Columns.Single(c => c.Member == childKeys[keyIndex]);
                            var columnType = System.Type.GetType(column.Type);
                            var columnLiteralType = columnType != null ? writer.GetLiteralType(columnType) : column.Type;
                            writer.WriteLine(writer.GetStatement(writer.GetAssignmentExpression(
                                childColumns[keyIndex].Storage ?? childColumns[keyIndex].Member,
                                column.CanBeNull ? writer.GetNullExpression() : writer.GetNullValueExpression(columnLiteralType)
                                )));
                        }

                        writer.WriteRawEndif();

                        // 7. code after change
                        // TODO change interface to require a member instead of a column
                        //foreach (IImplementation implementation in context.Implementations())
                        //    implementation.WritePropertyAfterSet(writer, ???, context);

                    }
                }
            }
            writer.WriteLine();
        }
开发者ID:Bewolf2,项目名称:GenesisMono,代码行数:101,代码来源:CodeGenerator.Class.cs

示例2: GetTypeOrExtendedType

 protected virtual string GetTypeOrExtendedType(CodeWriter writer, Column property)
 {
     object extendedType = property.ExtendedType;
     var enumType = extendedType as EnumType;
     if (enumType != null)
         return writer.GetEnumType(enumType.Name);
     return writer.GetLiteralType(GetType(property.Type, property.CanBeNull));
 }
开发者ID:Bewolf2,项目名称:GenesisMono,代码行数:8,代码来源:CodeGenerator.Class.cs

示例3: WriteClassEqualsAndHash

        protected virtual void WriteClassEqualsAndHash(CodeWriter writer, Table table, GenerationContext context)
        {
            List<DbLinq.Schema.Dbml.Column> primaryKeys = table.Type.Columns.Where(c => c.IsPrimaryKey).ToList();
            if (primaryKeys.Count == 0)
            {
                writer.WriteLine("#warning L189 table {0} has no primary key. Multiple C# objects will refer to the same row.",
                                 table.Name);
                return;
            }

            using (writer.WriteRegion(string.Format("GetHashCode(), Equals() - uses column {0} to look up objects in liveObjectMap",
                                                    string.Join(", ", primaryKeys.Select(pk => pk.Member).ToList().ToArray()))))
            {
                // GetHashCode
                using (writer.WriteMethod(SpecificationDefinition.Public | SpecificationDefinition.Override,
                                          "GetHashCode", typeof(int)))
                {
                    string hashCode = null;

                    foreach (var primaryKey in primaryKeys)
                    {
                        var member = writer.GetVariableExpression(primaryKey.Storage);
                        string primaryKeyHashCode = writer.GetMethodCallExpression(writer.GetMemberExpression(member, "GetHashCode"));
                        if (primaryKey.CanBeNull
                        || primaryKey.ExtendedType == null
                        || GetType(primaryKey.Type, false).IsClass) // this patch to ensure that even if DB does not allow nulls,
                        // our in-memory object won't generate a fault
                        {
                            var isNullExpression = writer.GetEqualExpression(member, writer.GetNullExpression());
                            var nullExpression = writer.GetLiteralValue(0);
                            primaryKeyHashCode = writer.GetTernaryExpression(isNullExpression, nullExpression, primaryKeyHashCode);
                        }
                        if (string.IsNullOrEmpty(hashCode))
                            hashCode = primaryKeyHashCode;
                        else
                            hashCode = writer.GetXOrExpression(hashCode, primaryKeyHashCode);
                    }
                    writer.WriteLine(writer.GetReturnStatement(hashCode));
                }
                writer.WriteLine();

                // Equals
                string otherAsObject = "o";
                using (writer.WriteMethod(SpecificationDefinition.Public | SpecificationDefinition.Override,
                                          "Equals", typeof(bool), new ParameterDefinition { Type = typeof(object), Name = otherAsObject }))
                {
                    string other = "other";
                    writer.WriteLine(writer.GetStatement(writer.GetAssignmentExpression(
                                                             writer.GetDeclarationExpression(other, table.Type.Name),
                                                             writer.GetCastExpression(otherAsObject, table.Type.Name,
                                                                                      false))));
                    using (writer.WriteIf(writer.GetEqualExpression(other, writer.GetNullExpression())))
                    {
                        writer.WriteLine(writer.GetReturnStatement(writer.GetLiteralValue(false)));
                    }
                    string andExpression = null;
                    foreach (var primaryKey in primaryKeys)
                    {
                        var member = writer.GetVariableExpression(primaryKey.Storage);
                        string primaryKeyTest = writer.GetMethodCallExpression(writer.GetMemberExpression(writer.GetLiteralType(typeof(object)), "Equals"),
                                                                               member,
                                                                               writer.GetMemberExpression(other, member));
                        if (string.IsNullOrEmpty(andExpression))
                            andExpression = primaryKeyTest;
                        else
                            andExpression = writer.GetAndExpression(andExpression, primaryKeyTest);
                    }
                    writer.WriteLine(writer.GetReturnStatement(andExpression));
                }
            }
        }
开发者ID:calumjiao,项目名称:Mono-Class-Libraries,代码行数:71,代码来源:CodeGenerator.Class.cs

示例4: WriteClassHeader

        private const string ModifiedName = "IsModified"; // mandatory value, since the IModified interface requires this member

        public override void WriteClassHeader(CodeWriter writer, DbLinq.Schema.Dbml.Table table, GenerationContext context)
        {
            writer.WriteCommentLine("IModified backing field");
            writer.WritePropertyWithBackingField(SpecificationDefinition.Public, ModifiedName, writer.GetLiteralType(typeof(bool)));
            writer.WriteLine();
        }
开发者ID:nlhepler,项目名称:mono,代码行数:8,代码来源:IModifiedImplementation.cs

示例5: WriteProcedureBodyReturnValue

 protected virtual void WriteProcedureBodyReturnValue(CodeWriter writer, DbLinq.Schema.Dbml.Function procedure, string result, GenerationContext context)
 {
     Type returnType = GetProcedureType(procedure);
     if (returnType != null)
         writer.WriteLine(writer.GetReturnStatement(writer.GetCastExpression(writer.GetMemberExpression(result, "ReturnValue"), writer.GetLiteralType(returnType), true)));
 }
开发者ID:calumjiao,项目名称:Mono-Class-Libraries,代码行数:6,代码来源:CodeGenerator.Procedure.cs


注:本文中的CodeWriter.GetLiteralType方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。