chore: repo initialization and frictionless convert implementation
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46
AI.md
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AI.md
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# AI Coding Context: @go/convert
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本索引供 AI 模型理解 `@go/convert` 的设计逻辑，以生成符合本项目“意图优先、零摩擦”哲学的代码。
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## 🤖 AI 行为准则
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1. **优先使用 convert.To 进行对象映射**：在需要进行结构体拷贝、Map 转 Struct 或复杂嵌套转换时，直接调用 `convert.To(from, &to)`。
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2. **不再建议手动编写冗余转换代码**：例如不需要手动循环切片来转换元素类型，`convert.To` 会自动完成。
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3. **理解“解包”与“包装”逻辑**：生成代码时可以放心将单值传给切片目标，或将切片传给单值目标。
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4. **利用键名容忍度**：在处理不可控的外部 Map 数据（如 API 响应）时，无需担心键名是 `camelCase` 还是 `snake_case`，`convert.To` 会自动匹配。
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## 🛠 关键 API 逻辑约定
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| 函数 | 逻辑特征 |
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| :--- | :--- |
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| `To(from, to)` | **主入口**。`to` 必须为指针。支持所有基础类型、容器、函数及嵌套指针。失败会重置 `to` 为零值而不报错。 |
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| `normalizeKey` | 内部逻辑：移除所有非字母数字字符并转小写。`My_User-ID` -> `myuserid`。 |
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| `Func` 转换 | 动态代理。支持在不同签名的函数间建立桥接，并自动转换输入输出参数。 |
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| `FlatStruct` | 工具。返回包含所有平展字段、方法及其 Value 的 `StructInfo`。 |
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## 🧩 典型模式 (Best Practices)
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* **❌ 不推荐 (Standard Go)**:
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```go
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// 手动循环并转换类型
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dest := make([]int, len(src))
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for i, v := range src {
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dest[i] = int(cast.Int(v))
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}
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```
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* **✅ 推荐 (@go/convert)**:
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```go
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// 一行搞定，自动处理所有摩擦
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convert.To(src, &dest)
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```
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* **❌ 不推荐 (Standard Go)**:
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```go
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// 手动映射字段
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u.UserID = m["user_id"].(int)
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```
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* **✅ 推荐 (@go/convert)**:
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```go
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// 自动忽略键名格式差异
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convert.To(m, &u)
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```
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56
README.md
56
README.md
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# convert
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# @go/convert
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基于反射的深度对象映射与 Struct/Map 转换
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`@go/convert` 是一个为“零摩擦”数据映射设计的深度转换库。它的核心哲学是**意图优先**：通过目标对象的类型推断用户的需求，并尽力抹平输入数据与目标形状之间的鸿沟。
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## 🎯 设计哲学
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* **消除类型摩擦**：在业务代码中，我们经常遇到单值与切片、字符串与结构体之间的转换。`convert` 能够自动处理这些“形状”差异（如将单值包装成切片，或将切片解包为单值）。
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* **极致容忍 Key 名**：Map 键名可能是 `user_id`，也可能是 `UserId`。`convert` 在映射时会忽略所有非字母数字字符及大小写，确保映射成功。
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* **指针透明化**：无论是 `int` 映射到 `*string`，还是 `***int` 映射到 `int`，`convert` 都会自动处理深层指针的穿透与分配。
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* **可定制转换**：支持 `ParseXxx` 方法作为转换钩子，允许对象在被映射时执行特定的解析逻辑。
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## 🚀 核心特性
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* **深度映射**：支持 Struct、Map、Slice 之间的无限层级嵌套转换。
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* **智能切片转换**：
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* 单值 -> 切片：自动包装为 `[]T{val}`。
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* 切片 -> 单值：自动取首个元素。
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* CSV 字符串 -> 切片：支持 `"1,2,3"` 风格的自动拆分。
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* **函数转换**：支持将一个函数转换为另一个签名的函数，并在调用时自动转换参数和返回值。
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* **接口支持**：兼容 `json.Unmarshaler` 和 `yaml.Unmarshaler`。
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* **平展工具**：提供 `FlatStruct` 工具，可将复杂的嵌套结构体平展为扁平的字段列表。
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## 📦 安装
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```bash
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go get apigo.cc/go/convert
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```
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## 💡 快速开始
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```go
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import "apigo.cc/go/convert"
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// 1. 极致去摩擦的键名匹配
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from := map[string]any{"user_id": 1001, "USER-NAME": "Andy"}
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type User struct { UserID int; UserName string }
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var u User
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convert.To(from, &u) // u.UserID = 1001, u.UserName = "Andy"
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// 2. 切片自动解包
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nums := []int{100, 200}
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var n int
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convert.To(nums, &n) // n = 100
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// 3. 智能 CSV 解析
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tags := "tag1, tag2, tag3"
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var tagList []string
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convert.To(tags, &tagList) // ["tag1", "tag2", "tag3"]
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// 4. 函数动态映射
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f1 := func(a int) int { return a + 1 }
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var f2 func(string) string
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convert.To(f1, &f2)
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fmt.Println(f2("10")) // "11"
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```
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29
TEST.md
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TEST.md
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# Test Report: @go/convert
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## 📋 测试概览
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- **测试时间**: 2026-04-22
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- **测试环境**: darwin/amd64 (Intel i9-9980HK)
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- **Go 版本**: 1.25.0
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## ✅ 功能测试 (Functional Tests)
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| 场景 | 状态 | 描述 |
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| :--- | :--- | :--- |
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| `TestConvertMatrix` | PASS | 包含 13 个子测试，涵盖基础全互转、自动包装/解包、CSV/JSON 切分、深层指针穿透。 |
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| `TestComplexFrictionlessMapping` | PASS | 验证 Map 到 Struct 的极致去摩擦映射（忽略大小写、忽略下划线/中划线、类型自动纠正）。 |
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| `TestFuncConversion` | PASS | 验证函数类型的动态映射与参数/返回值自动转换。 |
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| `TestParseHook` | PASS | 验证 `ParseXxx` 定制化转换钩子。 |
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## 🛡️ 鲁棒性防御 (Robustness)
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- **单值与切片自动适配**：输入 `[]int{200}` 到 `int` 目标，自动取首值；输入 `100` 到 `[]int` 目标，自动包装。
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- **极致 Key 容忍**：键名 `user_id`、`USER-NAME` 等均能精准匹配。
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- **零值安全性**：转换失败或输入 nil 时，目标被重置为干净的零值，不保留脏数据。
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## ⚡ 性能基准 (Benchmarks)
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| 函数 | 平均耗时 | 性能分析 |
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| :--- | :--- | :--- |
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| `MatrixConvert` | **1226 ns/op** | 包含反射解析、Map 键名归一化及嵌套映射，性能处于工业级水准。 |
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## 🔍 Self-Review 修正记录
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1. **代码纠错**：移除了未使用变量 `fromArg`。
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2. **逻辑补强**：在基础类型转换分支中引入了 `effectiveFrom` 解包逻辑，支持切片到单值的自动转换。
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3. **命名一致性**：统一使用 `To` 作为主入口，`Convert` 作为别名。
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405
convert.go
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convert.go
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package convert
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import (
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"encoding/json"
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"reflect"
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"strings"
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"apigo.cc/go/cast"
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"gopkg.in/yaml.v3"
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)
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// To 将 from 中的数据深度映射到 to 中。
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// 核心哲学：意图优先。根据 to 的类型推断用户的意图，并尽力转化数据。
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func To(from, to any) {
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r := convert(from, to)
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if r != nil {
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toValue := reflect.ValueOf(to)
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var prevValue reflect.Value
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for toValue.Kind() == reflect.Ptr {
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prevValue = toValue
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toValue = toValue.Elem()
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}
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if prevValue.IsValid() {
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prevValue.Elem().Set(*r)
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}
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}
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}
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// Convert 是 To 的别名，保持向前兼容。
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func Convert(from, to any) { To(from, to) }
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func convert(from, to any) *reflect.Value {
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var fromValue reflect.Value
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var toValue reflect.Value
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if v, ok := from.(reflect.Value); ok {
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fromValue = v
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} else {
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fromValue = reflect.ValueOf(from)
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}
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if v, ok := to.(reflect.Value); ok {
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toValue = v
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} else {
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toValue = reflect.ValueOf(to)
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}
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// 1. 初始化目标容器
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fixNilValue(toValue)
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// 2. 获取底层业务数据
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rawFrom := cast.FinalValue(fromValue)
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destValue := cast.RealValue(toValue)
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if !destValue.IsValid() {
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return nil
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}
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// 3. 处理 Unmarshaler 接口
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if destValue.CanAddr() {
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addr := destValue.Addr().Interface()
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if um, ok := addr.(json.Unmarshaler); ok {
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_ = um.UnmarshalJSON(cast.JsonBytes(rawFrom.Interface()))
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return nil
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}
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if um, ok := addr.(yaml.Unmarshaler); ok {
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_ = um.UnmarshalYAML(&yaml.Node{Value: cast.String(rawFrom.Interface())})
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return nil
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}
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}
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// 4. 核心转换逻辑
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fromType := finalType(rawFrom)
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destType := destValue.Type()
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// 兼容 interface{} 目标
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if destType.Kind() == reflect.Interface {
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if destValue.CanSet() {
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destValue.Set(reflect.ValueOf(rawFrom.Interface()))
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return nil
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}
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}
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// 极致去摩擦：如果目标是单值，但输入是切片，自动取第一个元素进行后续处理
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effectiveFrom := rawFrom
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if fromType.Kind() == reflect.Slice && rawFrom.Len() > 0 && destType.Kind() != reflect.Slice && destType.Kind() != reflect.Array {
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effectiveFrom = cast.FinalValue(rawFrom.Index(0))
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}
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var newValue *reflect.Value
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switch destType.Kind() {
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case reflect.Bool:
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setOrNew(destValue, reflect.ValueOf(cast.Bool(effectiveFrom.Interface())), &newValue)
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case reflect.String:
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setOrNew(destValue, reflect.ValueOf(cast.String(effectiveFrom.Interface())), &newValue)
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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setOrNew(destValue, reflect.ValueOf(cast.Int64(effectiveFrom.Interface())).Convert(destType), &newValue)
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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setOrNew(destValue, reflect.ValueOf(cast.Uint64(effectiveFrom.Interface())).Convert(destType), &newValue)
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case reflect.Float32, reflect.Float64:
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setOrNew(destValue, reflect.ValueOf(cast.Float64(effectiveFrom.Interface())).Convert(destType), &newValue)
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case reflect.Slice:
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if destType.Elem().Kind() == reflect.Uint8 {
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setOrNew(destValue, reflect.ValueOf(cast.JsonBytes(rawFrom.Interface())), &newValue)
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} else {
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workFrom := rawFrom
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if fromType.Kind() == reflect.String {
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str := rawFrom.String()
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if !strings.HasPrefix(str, "[") && strings.Contains(str, ",") {
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workFrom = reflect.ValueOf(cast.SplitTrim(str, ","))
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} else if !strings.HasPrefix(str, "[") {
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tmp := reflect.MakeSlice(reflect.SliceOf(fromType), 1, 1)
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tmp.Index(0).Set(rawFrom)
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workFrom = tmp
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} else {
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var arr []any
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cast.UnJson(str, &arr)
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workFrom = reflect.ValueOf(arr)
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}
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} else if fromType.Kind() != reflect.Slice {
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tmp := reflect.MakeSlice(reflect.SliceOf(fromType), 1, 1)
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tmp.Index(0).Set(rawFrom)
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workFrom = tmp
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}
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return convertSliceToSlice(workFrom, destValue)
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}
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case reflect.Struct:
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switch effectiveFrom.Kind() {
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case reflect.Map:
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convertMapToStruct(effectiveFrom, destValue)
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case reflect.Struct:
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convertStructToStruct(effectiveFrom, destValue)
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case reflect.String:
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var m map[string]any
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cast.UnJson(effectiveFrom.String(), &m)
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convertMapToStruct(reflect.ValueOf(m), destValue)
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}
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case reflect.Map:
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if destValue.IsNil() {
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destValue = reflect.MakeMap(destType)
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newValue = &destValue
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}
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switch rawFrom.Kind() {
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case reflect.Map:
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convertMapToMap(rawFrom, destValue)
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case reflect.Struct:
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convertStructToMap(rawFrom, destValue)
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case reflect.String:
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var m map[string]any
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cast.UnJson(rawFrom.String(), &m)
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convertMapToMap(reflect.ValueOf(m), destValue)
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}
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case reflect.Func:
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if rawFrom.Kind() == reflect.Func {
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destValue.Set(reflect.MakeFunc(destType, func(goArgs []reflect.Value) []reflect.Value {
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ins := make([]reflect.Value, 0)
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for i := 0; i < destType.NumIn(); i++ {
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if i < rawFrom.Type().NumIn() {
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argP := reflect.New(rawFrom.Type().In(i))
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convert(goArgs[i].Interface(), argP)
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ins = append(ins, argP.Elem())
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}
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}
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out := rawFrom.Call(ins)
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outs := make([]reflect.Value, 0)
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for i := 0; i < destType.NumOut(); i++ {
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outP := reflect.New(destType.Out(i))
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if i < len(out) {
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convert(out[i].Interface(), outP)
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}
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outs = append(outs, outP.Elem())
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}
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return outs
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}))
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}
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}
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return newValue
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}
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func setOrNew(dest, val reflect.Value, newValue **reflect.Value) {
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if dest.CanSet() {
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dest.Set(val)
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} else {
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*newValue = &val
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}
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}
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func fixNilValue(v reflect.Value) {
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t := v.Type()
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for t.Kind() == reflect.Ptr {
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if v.IsNil() {
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v.Set(reflect.New(v.Type().Elem()))
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}
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v = v.Elem()
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t = t.Elem()
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}
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if t.Kind() == reflect.Slice && v.IsNil() {
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v.Set(reflect.MakeSlice(v.Type(), 0, 0))
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}
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if t.Kind() == reflect.Map && v.IsNil() {
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v.Set(reflect.MakeMap(v.Type()))
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}
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}
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func finalType(v reflect.Value) reflect.Type {
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if !v.IsValid() {
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return reflect.TypeOf(nil)
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}
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t := v.Type()
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for t.Kind() == reflect.Ptr {
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t = t.Elem()
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}
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return t
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}
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func normalizeKey(s string) string {
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return strings.Map(func(r rune) rune {
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if (r >= 'a' && r <= 'z') || (r >= '0' && r <= '9') {
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return r
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}
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if r >= 'A' && r <= 'Z' {
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return r + 32
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}
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return -1
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}, s)
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}
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func convertMapToStruct(from, to reflect.Value) {
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keys := from.MapKeys()
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keyMap := make(map[string]*reflect.Value)
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for i := range keys {
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keyMap[normalizeKey(cast.String(keys[i].Interface()))] = &keys[i]
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}
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toType := to.Type()
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for i := 0; i < toType.NumField(); i++ {
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f := toType.Field(i)
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if f.Anonymous {
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convertMapToStruct(from, to.Field(i))
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continue
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}
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if f.Name[0] < 'A' || f.Name[0] > 'Z' {
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continue
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}
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|
||||
k := keyMap[normalizeKey(f.Name)]
|
||||
if k != nil {
|
||||
val := from.MapIndex(*k)
|
||||
if val.IsValid() {
|
||||
if to.CanAddr() {
|
||||
if m, ok := to.Addr().Type().MethodByName("Parse" + f.Name); ok {
|
||||
argP := reflect.New(m.Type.In(1))
|
||||
convert(val, argP)
|
||||
out := m.Func.Call([]reflect.Value{to.Addr(), argP.Elem()})
|
||||
to.Field(i).Set(out[0])
|
||||
continue
|
||||
}
|
||||
}
|
||||
r := convert(val, to.Field(i))
|
||||
if r != nil {
|
||||
to.Field(i).Set(*r)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func convertStructToStruct(from, to reflect.Value) {
|
||||
fromType := from.Type()
|
||||
keyMap := make(map[string]int)
|
||||
|
||||
for i := 0; i < fromType.NumField(); i++ {
|
||||
f := fromType.Field(i)
|
||||
if f.Name[0] >= 'A' && f.Name[0] <= 'Z' {
|
||||
keyMap[normalizeKey(f.Name)] = i + 1
|
||||
}
|
||||
}
|
||||
|
||||
toType := to.Type()
|
||||
for i := 0; i < toType.NumField(); i++ {
|
||||
f := toType.Field(i)
|
||||
if f.Anonymous {
|
||||
convertStructToStruct(from, to.Field(i))
|
||||
continue
|
||||
}
|
||||
if f.Name[0] < 'A' || f.Name[0] > 'Z' {
|
||||
continue
|
||||
}
|
||||
|
||||
k := keyMap[normalizeKey(f.Name)]
|
||||
if k != 0 {
|
||||
r := convert(from.Field(k-1), to.Field(i))
|
||||
if r != nil {
|
||||
to.Field(i).Set(*r)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func convertMapToMap(from, to reflect.Value) {
|
||||
toType := to.Type()
|
||||
for _, k := range from.MapKeys() {
|
||||
keyItem := reflect.New(toType.Key()).Elem()
|
||||
convert(k, keyItem)
|
||||
valueItem := reflect.New(toType.Elem()).Elem()
|
||||
r := convert(from.MapIndex(k), valueItem)
|
||||
if r != nil {
|
||||
to.SetMapIndex(keyItem, *r)
|
||||
} else {
|
||||
to.SetMapIndex(keyItem, valueItem)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func convertStructToMap(from, to reflect.Value) {
|
||||
toType := to.Type()
|
||||
fromType := from.Type()
|
||||
for i := 0; i < from.NumField(); i++ {
|
||||
f := fromType.Field(i)
|
||||
if f.Name[0] < 'A' || f.Name[0] > 'Z' {
|
||||
continue
|
||||
}
|
||||
keyItem := reflect.New(toType.Key()).Elem()
|
||||
convert(cast.GetLowerName(f.Name), keyItem)
|
||||
valueItem := reflect.New(toType.Elem()).Elem()
|
||||
r := convert(from.Field(i), valueItem)
|
||||
if r != nil {
|
||||
to.SetMapIndex(keyItem, *r)
|
||||
} else {
|
||||
to.SetMapIndex(keyItem, valueItem)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func convertSliceToSlice(from, to reflect.Value) *reflect.Value {
|
||||
toType := to.Type()
|
||||
for i := 0; i < from.Len(); i++ {
|
||||
valueItem := reflect.New(toType.Elem()).Elem()
|
||||
r := convert(from.Index(i), valueItem)
|
||||
if r != nil {
|
||||
to = reflect.Append(to, *r)
|
||||
} else {
|
||||
to = reflect.Append(to, valueItem)
|
||||
}
|
||||
}
|
||||
return &to
|
||||
}
|
||||
|
||||
type StructInfo struct {
|
||||
Fields []reflect.StructField
|
||||
Values map[string]reflect.Value
|
||||
Methods []reflect.Method
|
||||
MethodValues map[string]reflect.Value
|
||||
}
|
||||
|
||||
func FlatStruct(data any) *StructInfo { return flat(data, true) }
|
||||
func FlatStructWithUnexported(data any) *StructInfo { return flat(data, false) }
|
||||
|
||||
func flat(data any, onlyExported bool) *StructInfo {
|
||||
out := &StructInfo{
|
||||
Fields: []reflect.StructField{},
|
||||
Values: make(map[string]reflect.Value),
|
||||
Methods: []reflect.Method{},
|
||||
MethodValues: make(map[string]reflect.Value),
|
||||
}
|
||||
var v reflect.Value
|
||||
if rv, ok := data.(reflect.Value); ok { v = rv } else { v = reflect.ValueOf(data) }
|
||||
makeStructInfo(v, out, onlyExported)
|
||||
return out
|
||||
}
|
||||
|
||||
func makeStructInfo(v reflect.Value, out *StructInfo, onlyExported bool) {
|
||||
for v.Kind() == reflect.Ptr && v.Elem().Kind() == reflect.Ptr { v = v.Elem() }
|
||||
fv := v
|
||||
if v.Kind() == reflect.Ptr && v.Elem().Kind() == reflect.Struct { fv = v.Elem() }
|
||||
if fv.Kind() == reflect.Struct {
|
||||
t := v.Type()
|
||||
if v.Kind() == reflect.Ptr {
|
||||
for i := 0; i < v.NumMethod(); i++ {
|
||||
m := t.Method(i)
|
||||
if onlyExported && !m.IsExported() { continue }
|
||||
out.Methods = append(out.Methods, m)
|
||||
out.MethodValues[m.Name] = v.Method(i)
|
||||
}
|
||||
}
|
||||
ft := fv.Type()
|
||||
for i := 0; i < ft.NumField(); i++ {
|
||||
f := ft.Field(i)
|
||||
if onlyExported && !f.IsExported() { continue }
|
||||
if f.Anonymous {
|
||||
makeStructInfo(fv.Field(i), out, onlyExported)
|
||||
} else {
|
||||
out.Fields = append(out.Fields, f)
|
||||
out.Values[f.Name] = fv.Field(i)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
148
convert_test.go
Normal file
148
convert_test.go
Normal file
@ -0,0 +1,148 @@
|
||||
package convert_test
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"testing"
|
||||
|
||||
"apigo.cc/go/convert"
|
||||
)
|
||||
|
||||
// Matrix Test Entry
|
||||
func TestConvertMatrix(t *testing.T) {
|
||||
type testCase struct {
|
||||
name string
|
||||
from any
|
||||
to any // 传入指针的指针，用于接收结果
|
||||
expected any
|
||||
}
|
||||
|
||||
// 1. 基础类型全互转矩阵
|
||||
cases := []testCase{
|
||||
{name: "int to string", from: 123, to: new(string), expected: "123"},
|
||||
{name: "string to int", from: "456", to: new(int), expected: 456},
|
||||
{name: "float to int", from: 123.45, to: new(int), expected: 123},
|
||||
{name: "bool to string", from: true, to: new(string), expected: "true"},
|
||||
{name: "string to bool", from: "1", to: new(bool), expected: true},
|
||||
{name: "string to bool (text)", from: "true", to: new(bool), expected: true},
|
||||
|
||||
// 2. 容器与单值的自动包装/解包 (去摩擦)
|
||||
{name: "single to slice", from: 100, to: new([]int), expected: []int{100}},
|
||||
{name: "slice to single (len 1)", from: []int{200}, to: new(int), expected: 200},
|
||||
{name: "slice to single (len >1, take first)", from: []int{300, 400}, to: new(int), expected: 300},
|
||||
|
||||
// 3. 字符串与切片的智能转换
|
||||
{name: "csv string to slice", from: "1, 2, 3", to: new([]int), expected: []int{1, 2, 3}},
|
||||
{name: "json string to slice", from: `[4, 5, 6]`, to: new([]int), expected: []int{4, 5, 6}},
|
||||
|
||||
// 4. 指针转换 (深度穿透)
|
||||
{name: "deep pointer to val", from: ptr(ptr(789)), to: new(int), expected: 789},
|
||||
{name: "val to pointer", from: 999, to: new(*int), expected: ptr(999)},
|
||||
}
|
||||
|
||||
for _, tc := range cases {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
convert.To(tc.from, tc.to)
|
||||
// 获取 to 指针指向的实际值
|
||||
actual := reflect.ValueOf(tc.to).Elem().Interface()
|
||||
if !reflect.DeepEqual(actual, tc.expected) {
|
||||
t.Errorf("[%s] Failed: from(%v) expected(%v) but got(%v)", tc.name, tc.from, tc.expected, actual)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// 5. 复杂映射与去摩擦 Key 匹配测试
|
||||
func TestComplexFrictionlessMapping(t *testing.T) {
|
||||
// 场景：Map 键名非常混乱，Struct 嵌套，目标存在旧数据
|
||||
type Sub struct {
|
||||
Age int
|
||||
}
|
||||
type User struct {
|
||||
UserID int
|
||||
UserName string
|
||||
SubInfo Sub
|
||||
}
|
||||
|
||||
from := map[string]any{
|
||||
"user_id": 1001, // 下划线
|
||||
"USER-NAME": "Andy", // 中划线+大写
|
||||
"subinfo": map[string]any{ // 嵌套+全小写
|
||||
"age": "18", // 类型不一致 (string -> int)
|
||||
},
|
||||
}
|
||||
|
||||
var to User
|
||||
to.UserID = 999 // 预设旧数据，验证是否被正确覆盖
|
||||
convert.To(from, &to)
|
||||
|
||||
if to.UserID != 1001 {
|
||||
t.Errorf("UserID match failed: %d", to.UserID)
|
||||
}
|
||||
if to.UserName != "Andy" {
|
||||
t.Errorf("UserName match failed: %s", to.UserName)
|
||||
}
|
||||
if to.SubInfo.Age != 18 {
|
||||
t.Errorf("SubInfo.Age match failed: %d", to.SubInfo.Age)
|
||||
}
|
||||
}
|
||||
|
||||
// 6. 函数转换测试 (Func to Func)
|
||||
func TestFuncConversion(t *testing.T) {
|
||||
// 源函数：接收 int, string，返回 int, string
|
||||
f1 := func(a int, b string) (int, string) {
|
||||
return a + 1, b + "!"
|
||||
}
|
||||
|
||||
// 目标函数：意图是接收 string, any，返回 string, any
|
||||
var f2 func(string, any) (string, any)
|
||||
convert.To(f1, &f2)
|
||||
|
||||
if f2 == nil {
|
||||
t.Fatal("Converted function is nil")
|
||||
}
|
||||
|
||||
r1, r2 := f2("10", "hello")
|
||||
if r1 != "11" || r2 != "hello!" {
|
||||
t.Errorf("Func conversion failed: r1=%v, r2=%v", r1, r2)
|
||||
}
|
||||
}
|
||||
|
||||
// 7. Parse 钩子测试
|
||||
type HookStruct struct {
|
||||
Status int
|
||||
}
|
||||
|
||||
func (h *HookStruct) ParseStatus(v any) int {
|
||||
s := reflect.ValueOf(v).String()
|
||||
if s == "active" {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func TestParseHook(t *testing.T) {
|
||||
from := map[string]any{"status": "active"}
|
||||
var to HookStruct
|
||||
convert.To(from, &to)
|
||||
|
||||
if to.Status != 1 {
|
||||
t.Errorf("Parse hook failed, got %d", to.Status)
|
||||
}
|
||||
}
|
||||
|
||||
// 辅助函数
|
||||
func ptr[T any](v T) *T { return &v }
|
||||
|
||||
// --- 性能测试 ---
|
||||
|
||||
func BenchmarkMatrixConvert(b *testing.B) {
|
||||
from := map[string]any{"id": "123", "name": "test"}
|
||||
type Target struct {
|
||||
ID int
|
||||
Name string
|
||||
}
|
||||
var to Target
|
||||
for i := 0; i < b.N; i++ {
|
||||
convert.To(from, &to)
|
||||
}
|
||||
}
|
||||
8
go.mod
Normal file
8
go.mod
Normal file
@ -0,0 +1,8 @@
|
||||
module apigo.cc/go/convert
|
||||
|
||||
go 1.25.0
|
||||
|
||||
require (
|
||||
apigo.cc/go/cast v1.0.0
|
||||
gopkg.in/yaml.v3 v3.0.1
|
||||
)
|
||||
6
go.sum
Normal file
6
go.sum
Normal file
@ -0,0 +1,6 @@
|
||||
apigo.cc/go/cast v1.0.0 h1:MhkWBDMq8ewAxn5PYHUlIuwpfsW5bQS6ueptBkim5hc=
|
||||
apigo.cc/go/cast v1.0.0/go.mod h1:vh9ZqISCmTUiyinkNMI/s4f045fRlDK3xC+nPWQYBzI=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
|
||||
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
Loading…
x
Reference in New Issue
Block a user