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