@voerkai18n/babel/dist/index.mjs.map

Babel插件,实现自动文本映射

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包含import语句\r\n * - 包含export语句\r\n \r\n * @param {*} path \r\n */\r\nexport function isEsModule(this:Voerkai18nBabelPluginOptions,path:NodePath<any>){\r\n    for(let ele of path.node.body){\r\n        if(ele.type===\"ImportDeclaration\" \r\n            || ele.type===\"ExportNamedDeclaration\" \r\n            || ele.type===\"ExportDefaultDeclaration\"\r\n        ){\r\n            return true\r\n        }\r\n    } \r\n}\r\n/**\r\n * 判断是否导入了翻译函数 \r\n * import { t } from \"./i18n\"\r\n * const { t }  form \"./languages\"\r\n * @param {*} path \r\n * @returns  \r\n */\r\nexport function hasImportTranslateFunction(this:Voerkai18nBabelPluginOptions,path:NodePath<any>){  \r\n    for(let ele of path.node.body){\r\n        if(ele.type===\"ImportDeclaration\"){ \r\n            if(Array.isArray(ele.specifiers) \r\n                && ele.specifiers.findIndex((s:any) => (s.type === \"ImportSpecifier\")  \r\n                && (s.imported.name =='t') \r\n                && (s.local.name==='t'))>-1\r\n            ){               \r\n                return true\r\n            }\r\n        }\r\n    }\r\n}\r\nexport function hasRequireTranslateFunction(this:Voerkai18nBabelPluginOptions,path:NodePath<any>){ \r\n    for(let ele of path.node.body){\r\n        if(ele.type===\"VariableDeclaration\"){ \r\n            if(Array.isArray(ele.specifiers) \r\n                && ele.specifiers.findIndex((s:any) => s.type === \"ImportSpecifier\"  \r\n                && s.imported.name == 't'\r\n                && s.local.name=== 't')>-1){\r\n                return true\r\n            }\r\n        }\r\n    }\r\n}","/**\r\n *  转译源码中的t翻译函数的翻译内容转换为唯一的id值\r\n * \r\n *  - 将源文件中的t(\"xxxxx\")转码成t(\"id\")\r\n *  - 自动导入languages/index.js中的翻译函数t\r\n * \r\n *  查看AST: https://astexplorer.net/\r\n *  Babel插件手册: https://github.com/jamiebuilds/babel-handbook/blob/master/translations/zh-Hans/plugin-handbook.md\r\n * \r\n *  使用方法:\r\n * \r\n * {\r\n *  plugins:[\r\n *      [\"voerkai18n\",{\r\n *           \r\n *      }]\r\n *  ]\r\n * \r\n * \r\n * \r\n * }\r\n * \r\n * \r\n * \r\n */\r\n\r\nimport {  PluginPass } from '@babel/core';\r\nimport {  getIdMap } from \"@voerkai18n/utils\"\r\nimport { hasImportTranslateFunction, hasRequireTranslateFunction, isEsModule } from \"./utils\";\r\nimport * as t from \"@babel/types\" \r\nimport { NodePath } from '@babel/traverse';\r\n \r\nexport type Voerkai18nBabelPluginOptions = {\r\n    autoImport?:boolean | string\r\n    idMap?:Record<string,string>\r\n}\r\n\r\nexport default function voerkai18nPlugin(babel:any) {\r\n    const t = babel.types;\r\n    const pluginOptions = {\r\n        autoImport: false,      // 是否自动导入t函数  \r\n        idMap:{}                // 此参数用于测试使用 默认会读取languages/idMap.json文件\r\n    }\r\n    let idMap:Record<string,any> = {};\r\n    return {\r\n        visitor:{ \r\n            Program(path: NodePath<t.Program>, state:PluginPass & Voerkai18nBabelPluginOptions){ \r\n                // 转码插件参数可以覆盖默认参数\r\n                const { autoImport,idMap:devIdMap } = Object.assign(pluginOptions,state.opts || {}); \r\n                if(Object.keys(idMap).length===0){\r\n                    idMap = devIdMap || getIdMap() || {}\r\n                }\r\n                // 是否自动导入t函数\r\n                if(autoImport){\r\n                    let module = isEsModule.call(pluginOptions,path) ? 'esm' : 'cjs' \r\n                    const importName = \"t\"\r\n                    const importModule = typeof(autoImport)=== 'string' ? autoImport : \"@/languages\"\r\n                    if(![\"esm\",\"es\",\"cjs\",\"commonjs\"].includes(module)) module = 'esm'\r\n                    if(module === 'esm'){\r\n                        //  如果没有定义t函数，则自动导入\r\n                        if(!hasImportTranslateFunction.call(pluginOptions, path)){       \r\n                            path.node.body.unshift(t.importDeclaration([\r\n                                t.ImportSpecifier(t.identifier(importName),t.identifier(importName)\r\n                            )],t.stringLiteral(importModule)))\r\n                        }\r\n                    }else{\r\n                        if(!hasRequireTranslateFunction.call(pluginOptions, path)){ \r\n                            path.node.body.unshift(t.variableDeclaration(\"const\",[\r\n                                t.variableDeclarator(\r\n                                    t.ObjectPattern([t.ObjectProperty(t.Identifier(importName),t.Identifier(importName),false,true)]),\r\n                                    t.CallExpression(t.Identifier(\"require\"),[t.stringLiteral(importModule)])\r\n                                )\r\n                            ]))\r\n                        }                    \r\n                    }   \r\n                }                          \r\n            },\r\n            // 将t函数的第一个参数转换为id\r\n            CallExpression(path:NodePath<any>){\r\n                if( path.node.callee.name === 't' ){\r\n                    if(path.node.arguments.length>0 && t.isStringLiteral(path.node.arguments[0])){\r\n                        let message = path.node.arguments[0].value\r\n                        const msgId =(message in idMap) ? idMap[message] : message\r\n                        path.node.arguments[0] = t.stringLiteral(String(msgId))\r\n                    }\r\n                }else{\r\n                    path.skip();\r\n                }\r\n            }\r\n        }\r\n    }\r\n}"]}