Overview • The own Predict Logics • Exclusive Ownership & Mutable Borrow • Hoare Logic Examples • Separation Logic • Rc ## Background  ## Logics Hoare Logic  Given the precondition

Principle 45 3.8 Induction by Pattern Matching 47 3.9 Summary of New Lean Constructs 49 II Functional-Logic Programming 51 4 Functional Programming 53 4.1 Inductive Types 53 4.2 Structural Induction 138 8.7 Parallelism ..... 139 9 Hoare Logic ..... 143 9.1 Hoare Triples ..... 143 9.2 Hoare Rules ..... 144 9.3 A Semantic Approach to Hoare Logic ..... 146 9.4 First Program: Exchanging Two logical argument expressed in a logical formalism. In this context, “formal” means “logical” or “logic-based.” Logicians—the mathematicians of logics—carried out formal proofs on papers decades before

architecture 1. Keep a design easy to change - > Separate external input/output and business logic 2. Reach common understanding of implementation policies in a team • -> To make readable and need server-side architecture 1. Keep a design easy to change We are not able to achieve business logic "common understanding" ### 2. Common understanding of implementation policies in a team ## • Refer to Layered Architecture • Apply DIP (Dependency Inversion Principle) to isolate domain logic from infrastructure implementations(ex. database handling) ## Example of my team ## Go Skills/Knowledge

Operating Systems ☐ Threads ☐ Layer Separation ☐ External Interfaces Simulators ☐ Logs Network Problems ☐ Monitoring ## Operating Systems ☐ Threads ☐ Layer Separation ☐ External Interfaces ☐ Simulators system for complex systems with soft real-time requirements Operating Systems ☐ Threads ☐ Layer Separation ☐ External Interfaces ☐ Simulators ☐ Logs Network Problems ☐ Monitoring  ## Separate the logic layer

MODEL-VIEW-CONTROLLER THE BAD Hasn't aged well • Data isn't always readily available • Logic has become more complex - View and Controller are bound by UIKit (UIViewController) • Difficult event-driven programming of user interfaces (2005) • Designed by Microsoft • Model represents business logic • View represents what the user sees and interacts with • ViewModel converts the Model for View Some felt that the ViewModel shouldn't import UIKit • Some suggested putting network request logic inside the ViewModel • Felt like we were trying to wedge it into iOS ## VIPER 2012 • Derivative

58 4.8.1 Background...58 4.8.2 Challenges...58 4.8.3 Goal...59 4.8.4 Core Concept...59 Logic Column...59 Cipher Column...59 Query Assistant Column...59 Plain Column...59 4.8.5 Use Norms apache.shardingsphere.proxy.Bootstrap, how to solve it? ..... 346 7.8.5 [Proxy] How to add a new logic schema dynamically when use ShardingSphere-Proxy? ..... 346 7.8.6 [Proxy] How to use a suitable is also called transverse sharding. Compared with the categorization method according to business logic of vertical sharding, horizontal sharding categorizes data to multiple databases or tables according

Background ..... 60 4.8.2 Challenges ..... 60 4.8.3 Goal ..... 61 4.8.4 Core Concept ..... 61 Logic Column ..... 61 Cipher Column ..... 61 Query Assistant Column ..... 61 Plain Column ..... 61 apache.shardingsphere.proxy.Bootstrap, how to solve it? ..... 358 7.8.5 [Proxy] How to add a new logic schema dynamically when use ShardingSphere-Proxy? ..... 358 7.8.6 [Proxy] How to use a suitable is also called transverse sharding. Compared with the categorization method according to business logic of vertical sharding, horizontal sharding categorizes data to multiple databases or tables according

Background ..... 61 4.7.2 Challenges ..... 62 4.7.3 Goal ..... 62 4.7.4 Core Concept ..... 62 Logic Column ..... 62 Cipher Column ..... 62 Query Assistant Column ..... 62 Plain Column ..... 62 org.apache.shardingsphere.proxy.Bootstrap, how to solve it? 304 7.7.5 5. [Proxy] How to add a new logic schema dynamically when use ShardingSphere-Proxy? 304 7.7.6 6. [Proxy] How to use a suitable database is also called transverse sharding. Compared with the categorization method according to business logic of vertical sharding, horizontal sharding categorizes data to multiple databases or tables according

os_signpost(.begin, log: .render_loop, name: "GameLogicUpdate", signpostID: .render_loop, "Game logic update started") DispatchQueue.main.async { self.updates.forEach($0(self.gameState)) } os_signpost(.end, log: .render_loop, name: "GameLogicUpdate", signpostID: .render_loop, "Game logic update finished") ## Activity Tracing WARNIN AY 7:36 func findPlaneGeometryNode(on node: planeGeometry.update(from: self.geometry) } } } ## 做一个好码农 Clean Swift-y Code ## 单一 ## Separation of concerns • AREngine: 所以AR相关的功能 - MultipeerSession: 广播，发现，加入玩家，发送，接收数据 • Game: 游戏逻辑 • Dispatcher:

Dependencies, training data, configuration files, etc. Promote separation of responsibilities and let developers iterate faster on writing business logic Built-in support for secure sharing by ecosystem ## I Dependencies, training data, configuration files, etc. • Promote separation of responsibilities and let developers iterate faster on writing business logic • Built-in support for secure sharing by ecosystem ##