完成 task 5

mover/chinazmc/code/task5/swap/.gitignore

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+build/*

mover/chinazmc/code/task5/swap/Move.lock

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+# @generated by Move, please check-in and do not edit manually.
+
+[move]
+version = 3
+manifest_digest = "D9330D6D66A2A2928A52F42E6CCFE947C71570DA19896E0C154B21570F8F3CEA"
+deps_digest = "060AD7E57DFB13104F21BE5F5C3759D03F0553FC3229247D9A7A6B45F50D03A3"
+dependencies = [
+  { id = "Sui", name = "Sui" },
+  { id = "faucet_coin", name = "faucet_coin" },
+  { id = "mycoin", name = "mycoin" },
+]
+
+[[move.package]]
+id = "MoveStdlib"
+source = { git = "https://github.com/MystenLabs/sui.git", rev = "framework/testnet", subdir = "crates\\sui-framework\\packages\\move-stdlib" }
+
+[[move.package]]
+id = "Sui"
+source = { git = "https://github.com/MystenLabs/sui.git", rev = "framework/testnet", subdir = "crates/sui-framework/packages/sui-framework" }
+
+dependencies = [
+  { id = "MoveStdlib", name = "MoveStdlib" },
+]
+
+[[move.package]]
+id = "faucet_coin"
+source = { local = "..\\..\\task2\\faucet_coin" }
+
+dependencies = [
+  { id = "Sui", name = "Sui" },
+]
+
+[[move.package]]
+id = "mycoin"
+source = { local = "..\\..\\task2\\mycoin" }
+
+dependencies = [
+  { id = "Sui", name = "Sui" },
+]
+
+[move.toolchain-version]
+compiler-version = "1.39.3"
+edition = "2024.beta"
+flavor = "sui"
+
+[env]
+
+[env.mainnet]
+chain-id = "35834a8a"
+original-published-id = "0xa6c85467bbeccb866123ff5ff524889fd70e13463ab2f155691d6163fb13a228"
+latest-published-id = "0xa6c85467bbeccb866123ff5ff524889fd70e13463ab2f155691d6163fb13a228"
+published-version = "1"

mover/chinazmc/code/task5/swap/Move.toml

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+[package]
+name = "swap"
+edition = "2024.beta" # edition = "legacy" to use legacy (pre-2024) Move
+# license = ""           # e.g., "MIT", "GPL", "Apache 2.0"
+# authors = ["..."]      # e.g., ["Joe Smith (joesmith@noemail.com)", "John Snow (johnsnow@noemail.com)"]
+
+[dependencies]
+Sui = { git = "https://github.com/MystenLabs/sui.git", subdir = "crates/sui-framework/packages/sui-framework", rev = "framework/testnet" }
+faucet_coin = { local = "../../task2/faucet_coin" }
+mycoin = { local = "../../task2/mycoin" }
+# For remote import, use the `{ git = "...", subdir = "...", rev = "..." }`.
+# Revision can be a branch, a tag, and a commit hash.
+# MyRemotePackage = { git = "https://some.remote/host.git", subdir = "remote/path", rev = "main" }
+
+# For local dependencies use `local = path`. Path is relative to the package root
+# Local = { local = "../path/to" }
+
+# To resolve a version conflict and force a specific version for dependency
+# override use `override = true`
+# Override = { local = "../conflicting/version", override = true }
+
+[addresses]
+swap = "0x0"
+
+# Named addresses will be accessible in Move as `@name`. They're also exported:
+# for example, `std = "0x1"` is exported by the Standard Library.
+# alice = "0xA11CE"
+
+[dev-dependencies]
+# The dev-dependencies section allows overriding dependencies for `--test` and
+# `--dev` modes. You can introduce test-only dependencies here.
+# Local = { local = "../path/to/dev-build" }
+
+[dev-addresses]
+# The dev-addresses section allows overwriting named addresses for the `--test`
+# and `--dev` modes.
+# alice = "0xB0B"
+

mover/chinazmc/code/task5/swap/readme.md

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+Transaction Digest: AJoqdHFTcJkQuyFom8RNCGRjckVu5PZJR6ogoVVRWqgo
+PackageID: 0xa6c85467bbeccb866123ff5ff524889fd70e13463ab2f155691d6163fb13a228 
+
+pool object id : 0xd7de7087e486b41d9ad7cc7092950ec6eef4d58ee22ceb1f43785aa13914841f
+
+
+add_liquidity Transaction Digest: GzQrbBmNes4fxUEMcECd9wodDg3tnrHiHeALTn4T2KEZ
+swap_a_to_b Transaction Digest: ZKq53uXr39c8TQ13PNzSFAMbNocZMFP4hbtfciAFy4m

mover/chinazmc/code/task5/swap/sources/swap.move

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+/*
+/// Module: swap
+module swap::swap;
+*/
+
+// For Move coding conventions, see
+// https://docs.sui.io/concepts/sui-move-concepts/conventions
+
+
+module swap::swap {
+    use sui::coin::{Self, Coin};
+    use sui::balance::{Self, Balance};
+    use sui::event;
+    use std::string::{Self, String};
+
+    // 导入自定义的代币模块
+    use mycoin::mycoin::MYCOIN;
+    use faucet_coin::faucet_coin::FAUCET_COIN;
+    const E_INSUFFICIENT_LIQUIDITY: u64 = 0;
+    const E_ZERO_AMOUNT: u64 = 1;
+
+    //流动性池结构体
+    public struct Pool has key {
+        id: UID,
+        coin_a: Balance<MYCOIN>, //代币A的余额
+        coin_b: Balance<FAUCET_COIN> //代币B的余额
+    }
+    //添加流动性事件结构体
+    public struct LiquidityEvent has copy,drop {
+        provider:address,//提供流动性的地址
+        coin_a_amount:u64,//代币A的数量
+        coin_b_amount:u64,//代币B的数量
+        coin_a_type:String,
+        coin_b_type:String,
+        timestamp:u64,//时间戳
+    }
+    //交换事件结构体
+    public struct SwapEvent has copy,drop {
+        sender:address,//发起交换的地址
+        coin_in_amount:u64,//输入代币的数量
+        coin_out_amount:u64,//输出代币的数量
+        coin_in_type:String,//输入代币的类型
+        coin_out_type:String,//输出代币的类型
+        timestamp:u64,//时间戳
+    }
+    fun init(ctx: &mut TxContext) {
+        let pool = Pool{
+            id: object::new(ctx),
+            coin_a:balance::zero<MYCOIN>(),
+            coin_b:balance::zero<FAUCET_COIN>(),
+        };
+        transfer::share_object(pool);
+    }
+    //添加流动性函数
+    public entry fun add_liquidity(
+        pool: &mut Pool,
+        coin_a: Coin<MYCOIN>,
+        coin_b: Coin<FAUCET_COIN>,
+        ctx: &mut TxContext
+    ){
+        let a_amount = coin::value(&coin_a);//获取代币A的数量
+        let b_amount = coin::value(&coin_b);//获取代币B的数量
+        assert!(a_amount > 0 && b_amount > 0,E_ZERO_AMOUNT);
+        balance::join(&mut pool.coin_a,coin::into_balance(coin_a));
+        balance::join(&mut pool.coin_b,coin::into_balance(coin_b));
+        //记录添加流动性的事件
+        event::emit(LiquidityEvent{
+           provider: ctx.sender(),
+            coin_a_amount:a_amount,
+            coin_b_amount:b_amount,
+            coin_a_type:string::utf8(b"mycoin"),
+            coin_b_type:string::utf8(b"faucet_coin"),
+            timestamp: tx_context::epoch(ctx),
+        });
+    }
+    //代币A换代币B的函数
+    public entry fun swap_a_to_b(
+        pool: &mut Pool,
+        coin_a_in: Coin<MYCOIN>,
+        ctx: &mut TxContext
+    ) {
+        let a_amount = coin::value(&coin_a_in); // 获取输入的代币A的数量
+        assert!(a_amount > 0, E_ZERO_AMOUNT); // 确保输入的代币数量大于零
+
+        let b_reserve = balance::value(&pool.coin_b); // 获取代币B的储备量
+        assert!(b_reserve > 0, E_INSUFFICIENT_LIQUIDITY); // 确保代币B的储备量大于零
+
+        let a_reserve = balance::value(&pool.coin_a); // 获取代币A的储备量
+        let b_out = (a_amount * b_reserve) / (a_reserve + a_amount); // 计算可以换取的代币B的数量
+        assert!(b_out > 0 && b_out <= b_reserve, E_INSUFFICIENT_LIQUIDITY); // 确保可以换取的代币B数量有效
+
+        // 更新流动性池的余额
+        balance::join(&mut pool.coin_a, coin::into_balance(coin_a_in)); // 将输入的代币A加入流动性池
+        let coin_b_out = coin::take(&mut pool.coin_b, b_out, ctx); // 从流动性池中取出代币B
+        transfer::public_transfer(coin_b_out, tx_context::sender(ctx)); // 将代币B转给发起者
+
+        // 记录交换事件
+        event::emit(SwapEvent {
+            sender: tx_context::sender(ctx), // 发起交换的地址
+            coin_in_amount: a_amount, // 输入的代币A的数量
+            coin_out_amount: b_out, // 输出的代币B的数量
+            coin_in_type: string::utf8(b"MYCOIN"), // 输入的代币A的类型
+            coin_out_type: string::utf8(b"faucet_coin"), // 输出的代币B的类型
+            timestamp: tx_context::epoch(ctx), // 当前时间戳
+        });
+    }
+    //代币B换代币A的函数
+    public entry fun swap_b_to_a(
+        pool: &mut Pool,
+        coin_b_in: Coin<FAUCET_COIN>,
+        ctx: &mut TxContext
+    ) {
+        let b_amount = coin::value(&coin_b_in); // 获取输入的代币B的数量
+        assert!(b_amount > 0, E_ZERO_AMOUNT); // 确保输入的代币数量大于零
+
+        let a_reserve = balance::value(&pool.coin_a); // 获取代币A的储备量
+        assert!(a_reserve > 0, E_INSUFFICIENT_LIQUIDITY); // 确保代币A的储备量大于零
+
+        let b_reserve = balance::value(&pool.coin_b); // 获取代币B的储备量
+        let a_out = (b_amount * a_reserve) / (b_reserve + b_amount); // 计算可以换取的代币A的数量
+        assert!(a_out > 0 && a_out <= b_reserve, E_INSUFFICIENT_LIQUIDITY); // 确保可以换取的代币A数量有效
+
+        // 更新流动性池的余额
+        balance::join(&mut pool.coin_b, coin::into_balance(coin_b_in)); // 将输入的代币B加入流动性池
+        let coin_a_out = coin::take(&mut pool.coin_a, a_out, ctx); // 从流动性池中取出代币A
+        transfer::public_transfer(coin_a_out, tx_context::sender(ctx)); // 将代币A转给发起者
+
+        // 记录交换事件
+        event::emit(SwapEvent {
+            sender: tx_context::sender(ctx), // 发起交换的地址
+            coin_in_amount: b_amount, // 输入的代币的数量
+            coin_out_amount: a_out, // 输出的代币的数量
+            coin_in_type: string::utf8(b"FAUCET_COIN"), // 输入的代币的类型
+            coin_out_type: string::utf8(b"MYCOIN"), // 输出的代币的类型
+            timestamp: tx_context::epoch(ctx), // 当前时间戳
+        });
+    }
+
+}

mover/chinazmc/code/task5/swap/tests/swap_tests.move

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+/*
+#[test_only]
+module swap::swap_tests;
+// uncomment this line to import the module
+// use swap::swap;
+
+const ENotImplemented: u64 = 0;
+
+#[test]
+fun test_swap() {
+    // pass
+}
+
+#[test, expected_failure(abort_code = ::swap::swap_tests::ENotImplemented)]
+fun test_swap_fail() {
+    abort ENotImplemented
+}
+*/