structToSchema 将 struct 类型转换为 JSON Schema
(typ reflect.Type)
| 44 | |
| 45 | // structToSchema 将 struct 类型转换为 JSON Schema |
| 46 | func (g *SchemaGenerator) structToSchema(typ reflect.Type) (map[string]any, error) { |
| 47 | schema := map[string]any{ |
| 48 | "type": "object", |
| 49 | "properties": make(map[string]any), |
| 50 | } |
| 51 | |
| 52 | var required []string |
| 53 | properties := schema["properties"].(map[string]any) |
| 54 | |
| 55 | for i := 0; i < typ.NumField(); i++ { |
| 56 | field := typ.Field(i) |
| 57 | |
| 58 | // 跳过未导出的字段 |
| 59 | if !field.IsExported() { |
| 60 | continue |
| 61 | } |
| 62 | |
| 63 | // 获取 JSON 标签 |
| 64 | jsonTag := field.Tag.Get("json") |
| 65 | if jsonTag == "-" { |
| 66 | continue // 跳过标记为 "-" 的字段 |
| 67 | } |
| 68 | |
| 69 | // 解析 JSON 标签 |
| 70 | fieldName := field.Name |
| 71 | omitEmpty := false |
| 72 | if jsonTag != "" { |
| 73 | parts := strings.Split(jsonTag, ",") |
| 74 | if parts[0] != "" { |
| 75 | fieldName = parts[0] |
| 76 | } |
| 77 | for _, part := range parts[1:] { |
| 78 | if part == "omitempty" { |
| 79 | omitEmpty = true |
| 80 | } |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | // 生成字段 Schema |
| 85 | fieldSchema, err := g.typeToSchema(field.Type) |
| 86 | if err != nil { |
| 87 | return nil, fmt.Errorf("field %s: %w", fieldName, err) |
| 88 | } |
| 89 | |
| 90 | // 添加描述 |
| 91 | if desc := field.Tag.Get("description"); desc != "" { |
| 92 | fieldSchema["description"] = desc |
| 93 | } |
| 94 | |
| 95 | // 添加枚举 |
| 96 | if enumTag := field.Tag.Get("enum"); enumTag != "" { |
| 97 | values := strings.Split(enumTag, ",") |
| 98 | fieldSchema["enum"] = values |
| 99 | } |
| 100 | |
| 101 | // 添加数字范围约束 |
| 102 | if field.Type.Kind() == reflect.Int || field.Type.Kind() == reflect.Int64 || |
| 103 | field.Type.Kind() == reflect.Float64 { |
no test coverage detected