在使用webpack ts-loader时,不显示Typescript Source

时间:2016-03-30 23:57:22

标签: typescript gruntjs webpack ts-loader

我正在使用来自grunt任务的webpack和ts-loader来转换Typescript并生成用于调试生产的源图。我的团队希望能够看到原始的Typescript源代码,而不仅仅是JavaScript源代码。我已经仔细阅读了许多文档页面,以及许多问题/答案,寻找合适的解决方案,但到目前为止,我无法在浏览器中看到Typescript文件,只能看到JavaScript版本。

我们的项目根模块或webpack任务的“条目”webpackEntry是一个Javascript文件,它需要JavaScript文件,其中一些是从TypeScript编译的,但有些只是手动创建的。

我配置了一个webpack“prod”任务:

        webpack: {
        options: {
            entry: webpackEntry,
            output: {
                path: webpackDest,
                filename: 'app-min.js',
                libraryTarget: "assign",
                pathInfo: true
            },
            externals: grunt.file.readJSON('app-ui/webpack-externals.json'),
            progress: true
        },
        prod: {
            devtool: 'source-map',
            plugins: [
                new webpack.optimize.UglifyJsPlugin(),
                new webpack.optimize.OccurenceOrderPlugin(),
                new webpack.optimize.DedupePlugin(),
                new webpack.SourceMapDevToolPlugin({
                    test:  /\.tsx?$/,
                    exclude: 'node_modules',
                    module: true,
                    filename: '[file].map',
                    append: false
                })
            ],
            resolve: {
                // Add `.ts` and `.tsx` as a resolvable extension.
                extensions: ['', '.webpack.js', '.web.js', '.ts', '.tsx', '.js','.jsx']
            },
            module: {
                loaders: [
                    // all files with a `.ts` or `.tsx` extension will be handled by `ts-loader`
                    { test: /\.tsx?$/, loader: 'ts-loader', exclude: 'node_modules' }
                ]
            },
            ts: {
                // configures the ts compiler:
                "compilerOptions": {
                    "target": "es5",
                    "sourceMap": true,
                    "jsx": "react",
                    "experimentalDecorators": true
                },
                "exclude": [
                    "node_modules" // add other exclusions for the ts compiler.
                ]
            }
        }...

和tsconfig.json:

{
   "compilerOptions": {
        "target": "es5",
        "sourceMap": true
    },
    "exclude": [
        "node_modules"
      ]
}

...但我在Chrome开发工具源中看到的只是JavaScript源文件。我希望能够看到原始的JavaScript源文件,以及原始的Typescript文件,但不能看到已编译的JavaScript文件。

更新: 我按照@ basarat的建议在下面添加了source-map-loader工具。我仍然只在dev-tools窗口中看到JavaScript文件。

相关摘录:

module: {
                loaders: [
                    // all files with a `.ts` or `.tsx` extension will be handled by `ts-loader`
                    { test: /\.tsx?$/, loader: 'ts-loader', exclude: 'node_modules' }
                ],
                preLoaders: [
                    // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
                    { test: /\.js$/, loader: "source-map-loader", exclude: ['node_modules', 'ext-*', 'lib', 'tools'] }
                ]
            }, ...

ts-loader中的任何专家都能为此提供帮助吗?在此先感谢您的帮助!

2 个答案:

答案 0 :(得分:4)

您需要使用sourcemap加载程序。这包括:https://github.com/Microsoft/TypeScript-Handbook/blob/master/pages/quick-start/react-webpack.md

您的webpack配置应该是:

module: {
    loaders: [
        // All files with a '.ts' or '.tsx' extension will be handled by 'ts-loader'.
        { test: /\.tsx?$/, loader: "ts-loader" }
    ],

    preLoaders: [
        // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
        { test: /\.js$/, loader: "source-map-loader" }
    ]
},

答案 1 :(得分:1)

您可以将devTools值提供给您的webpack配置,如下所示:

module.exports = {
    entry:'./app/app',
    output:{
        filename:'bundle.js',
    },
    resolve:{
        extensions:['','.ts','.js'],
        modulesDirectories: ['node_modules']
    },
    module:{
        loaders:[
            {
                test: /\.ts$/, loader: 'ts-loader'
            }
        ]
    },
    devtool: "sourcemap" /*<=================*/
}

Microsoft指南位于:https://github.com/Microsoft/TypeScript-Handbook/blob/master/pages/tutorials/React%20%26%20Webpack.md