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C# CodeWriter.WriteRawElse方法代码示例

本文整理汇总了C#中CodeWriter.WriteRawElse方法的典型用法代码示例。如果您正苦于以下问题:C# CodeWriter.WriteRawElse方法的具体用法?C# CodeWriter.WriteRawElse怎么用?C# CodeWriter.WriteRawElse使用的例子?那么恭喜您, 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.WriteRawElse方法的1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


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