我正在尝试使用TypeScript(^ 2.9.2)和Webpack(^ 4.12.1)从头开始设置新的Screeps(游戏)项目。如何正确设置源 map ?我做了什么:

  • 在tsconfig.json中设置"sourceMap": true,
  • 在webpack.config.js中设置devtool: 'inline-source-map',。我想对于Screeps来说,内联是必须的吗?
  • 在webpack配置中将loader: "source-map-loader",设置为test: /\.ts$/, enforce: 'pre',,以不丢失TS源映射。

  • 在我的main.ts中,现在只是console.log(foo);导致:
    ReferenceError: foo is not defined
        at Object../src/main.ts:98:13
        at __webpack_require__:20:30
        at eval:84:18
        at main:87:10
        at eval:105:4
        at Object.<anonymous>:2:143759
        at Object.r.run:2:144268```
    

    在Screeps客户端控制台中就是这种情况。在Firefox中,我只看到foo is not defined,而没有更多具体信息。

    有什么办法可以在堆栈跟踪中的某处获取/src/main.ts:1:13(正确的行号)?看起来似乎没有任何源映射,但是main.js构建中的底部有一个:
    //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbIndlYnBhY2s6Ly8vd2VicGFjay9ib290c3RyYXAiLCJ3ZWJwYWNrOi8vLy4vc3JjL21haW4udHMiXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IjtBQUFBO0FBQ0E7O0FBRUE7QUFDQTs7QUFFQTtBQUNBO0FBQ0E7QUFDQTtBQUNBO0FBQ0E7QUFDQTtBQUNBO0FBQ0E7QUFDQTs7QUFFQTtBQUNBOztBQUVBO0FBQ0E7O0FBRUE7QUFDQTtBQUNBOzs7QUFHQTtBQUNBOztBQUVBO0FBQ0E7O0FBRUE7QUFDQTtBQUNBO0FBQ0Esa0RBQTBDLGdDQUFnQztBQUMxRTtBQUNBOztBQUVBO0FBQ0E7QUFDQTtBQUNBLGdFQUF3RCxrQkFBa0I7QUFDMUU7QUFDQSx5REFBaUQsY0FBYztBQUMvRDs7QUFFQTtBQUNBO0FBQ0E7QUFDQTtBQUNBO0FBQ0E7QUFDQTtBQUNBO0FBQ0E7QUFDQTtBQUNBO0FBQ0EsaURBQXlDLGlDQUFpQztBQUMxRSx3SEFBZ0gsbUJBQW1CLEVBQUU7QUFDckk7QUFDQTs7QUFFQTtBQUNBO0FBQ0E7QUFDQSxtQ0FBMkIsMEJBQTBCLEVBQUU7QUFDdkQseUNBQWlDLGVBQWU7QUFDaEQ7QUFDQTtBQUNBOztBQUVBO0FBQ0EsOERBQXNELCtEQUErRDs7QUFFckg7QUFDQTs7O0FBR0E7QUFDQTs7Ozs7Ozs7Ozs7Ozs7QUNsRkEsT0FBTyxDQUFDLEdBQUcsQ0FBQyxVQUFVLENBQUMsQ0FBQyIsImZpbGUiOiJtYWluLmpzIiwic291cmNlc0NvbnRlbnQiOlsiIFx0Ly8gVGhlIG1vZHVsZSBjYWNoZVxuIFx0dmFyIGluc3RhbGxlZE1vZHVsZXMgPSB7fTtcblxuIFx0Ly8gVGhlIHJlcXVpcmUgZnVuY3Rpb25cbiBcdGZ1bmN0aW9uIF9fd2VicGFja19yZXF1aXJlX18obW9kdWxlSWQpIHtcblxuIFx0XHQvLyBDaGVjayBpZiBtb2R1bGUgaXMgaW4gY2FjaGVcbiBcdFx0aWYoaW5zdGFsbGVkTW9kdWxlc1ttb2R1bGVJZF0pIHtcbiBcdFx0XHRyZXR1cm4gaW5zdGFsbGVkTW9kdWxlc1ttb2R1bGVJZF0uZXhwb3J0cztcbiBcdFx0fVxuIFx0XHQvLyBDcmVhdGUgYSBuZXcgbW9kdWxlIChhbmQgcHV0IGl0IGludG8gdGhlIGNhY2hlKVxuIFx0XHR2YXIgbW9kdWxlID0gaW5zdGFsbGVkTW9kdWxlc1ttb2R1bGVJZF0gPSB7XG4gXHRcdFx0aTogbW9kdWxlSWQsXG4gXHRcdFx0bDogZmFsc2UsXG4gXHRcdFx0ZXhwb3J0czoge31cbiBcdFx0fTtcblxuIFx0XHQvLyBFeGVjdXRlIHRoZSBtb2R1bGUgZnVuY3Rpb25cbiBcdFx0bW9kdWxlc1ttb2R1bGVJZF0uY2FsbChtb2R1bGUuZXhwb3J0cywgbW9kdWxlLCBtb2R1bGUuZXhwb3J0cywgX193ZWJwYWNrX3JlcXVpcmVfXyk7XG5cbiBcdFx0Ly8gRmxhZyB0aGUgbW9kdWxlIGFzIGxvYWRlZFxuIFx0XHRtb2R1bGUubCA9IHRydWU7XG5cbiBcdFx0Ly8gUmV0dXJuIHRoZSBleHBvcnRzIG9mIHRoZSBtb2R1bGVcbiBcdFx0cmV0dXJuIG1vZHVsZS5leHBvcnRzO1xuIFx0fVxuXG5cbiBcdC8vIGV4cG9zZSB0aGUgbW9kdWxlcyBvYmplY3QgKF9fd2VicGFja19tb2R1bGVzX18pXG4gXHRfX3dlYnBhY2tfcmVxdWlyZV9fLm0gPSBtb2R1bGVzO1xuXG4gXHQvLyBleHBvc2UgdGhlIG1vZHVsZSBjYWNoZVxuIFx0X193ZWJwYWNrX3JlcXVpcmVfXy5jID0gaW5zdGFsbGVkTW9kdWxlcztcblxuIFx0Ly8gZGVmaW5lIGdldHRlciBmdW5jdGlvbiBmb3IgaGFybW9ueSBleHBvcnRzXG4gXHRfX3dlYnBhY2tfcmVxdWlyZV9fLmQgPSBmdW5jdGlvbihleHBvcnRzLCBuYW1lLCBnZXR0ZXIpIHtcbiBcdFx0aWYoIV9fd2VicGFja19yZXF1aXJlX18ubyhleHBvcnRzLCBuYW1lKSkge1xuIFx0XHRcdE9iamVjdC5kZWZpbmVQcm9wZXJ0eShleHBvcnRzLCBuYW1lLCB7IGVudW1lcmFibGU6IHRydWUsIGdldDogZ2V0dGVyIH0pO1xuIFx0XHR9XG4gXHR9O1xuXG4gXHQvLyBkZWZpbmUgX19lc01vZHVsZSBvbiBleHBvcnRzXG4gXHRfX3dlYnBhY2tfcmVxdWlyZV9fLnIgPSBmdW5jdGlvbihleHBvcnRzKSB7XG4gXHRcdGlmKHR5cGVvZiBTeW1ib2wgIT09ICd1bmRlZmluZWQnICYmIFN5bWJvbC50b1N0cmluZ1RhZykge1xuIFx0XHRcdE9iamVjdC5kZWZpbmVQcm9wZXJ0eShleHBvcnRzLCBTeW1ib2wudG9TdHJpbmdUYWcsIHsgdmFsdWU6ICdNb2R1bGUnIH0pO1xuIFx0XHR9XG4gXHRcdE9iamVjdC5kZWZpbmVQcm9wZXJ0eShleHBvcnRzLCAnX19lc01vZHVsZScsIHsgdmFsdWU6IHRydWUgfSk7XG4gXHR9O1xuXG4gXHQvLyBjcmVhdGUgYSBmYWtlIG5hbWVzcGFjZSBvYmplY3RcbiBcdC8vIG1vZGUgJiAxOiB2YWx1ZSBpcyBhIG1vZHVsZSBpZCwgcmVxdWlyZSBpdFxuIFx0Ly8gbW9kZSAmIDI6IG1lcmdlIGFsbCBwcm9wZXJ0aWVzIG9mIHZhbHVlIGludG8gdGhlIG5zXG4gXHQvLyBtb2RlICYgNDogcmV0dXJuIHZhbHVlIHdoZW4gYWxyZWFkeSBucyBvYmplY3RcbiBcdC8vIG1vZGUgJiA4fDE6IGJlaGF2ZSBsaWtlIHJlcXVpcmVcbiBcdF9fd2VicGFja19yZXF1aXJlX18udCA9IGZ1bmN0aW9uKHZhbHVlLCBtb2RlKSB7XG4gXHRcdGlmKG1vZGUgJiAxKSB2YWx1ZSA9IF9fd2VicGFja19yZXF1aXJlX18odmFsdWUpO1xuIFx0XHRpZihtb2RlICYgOCkgcmV0dXJuIHZhbHVlO1xuIFx0XHRpZigobW9kZSAmIDQpICYmIHR5cGVvZiB2YWx1ZSA9PT0gJ29iamVjdCcgJiYgdmFsdWUgJiYgdmFsdWUuX19lc01vZHVsZSkgcmV0dXJuIHZhbHVlO1xuIFx0XHR2YXIgbnMgPSBPYmplY3QuY3JlYXRlKG51bGwpO1xuIFx0XHRfX3dlYnBhY2tfcmVxdWlyZV9fLnIobnMpO1xuIFx0XHRPYmplY3QuZGVmaW5lUHJvcGVydHkobnMsICdkZWZhdWx0JywgeyBlbnVtZXJhYmxlOiB0cnVlLCB2YWx1ZTogdmFsdWUgfSk7XG4gXHRcdGlmKG1vZGUgJiAyICYmIHR5cGVvZiB2YWx1ZSAhPSAnc3RyaW5nJykgZm9yKHZhciBrZXkgaW4gdmFsdWUpIF9fd2VicGFja19yZXF1aXJlX18uZChucywga2V5LCBmdW5jdGlvbihrZXkpIHsgcmV0dXJuIHZhbHVlW2tleV07IH0uYmluZChudWxsLCBrZXkpKTtcbiBcdFx0cmV0dXJuIG5zO1xuIFx0fTtcblxuIFx0Ly8gZ2V0RGVmYXVsdEV4cG9ydCBmdW5jdGlvbiBmb3IgY29tcGF0aWJpbGl0eSB3aXRoIG5vbi1oYXJtb255IG1vZHVsZXNcbiBcdF9fd2VicGFja19yZXF1aXJlX18ubiA9IGZ1bmN0aW9uKG1vZHVsZSkge1xuIFx0XHR2YXIgZ2V0dGVyID0gbW9kdWxlICYmIG1vZHVsZS5fX2VzTW9kdWxlID9cbiBcdFx0XHRmdW5jdGlvbiBnZXREZWZhdWx0KCkgeyByZXR1cm4gbW9kdWxlWydkZWZhdWx0J107IH0gOlxuIFx0XHRcdGZ1bmN0aW9uIGdldE1vZHVsZUV4cG9ydHMoKSB7IHJldHVybiBtb2R1bGU7IH07XG4gXHRcdF9fd2VicGFja19yZXF1aXJlX18uZChnZXR0ZXIsICdhJywgZ2V0dGVyKTtcbiBcdFx0cmV0dXJuIGdldHRlcjtcbiBcdH07XG5cbiBcdC8vIE9iamVjdC5wcm90b3R5cGUuaGFzT3duUHJvcGVydHkuY2FsbFxuIFx0X193ZWJwYWNrX3JlcXVpcmVfXy5vID0gZnVuY3Rpb24ob2JqZWN0LCBwcm9wZXJ0eSkgeyByZXR1cm4gT2JqZWN0LnByb3RvdHlwZS5oYXNPd25Qcm9wZXJ0eS5jYWxsKG9iamVjdCwgcHJvcGVydHkpOyB9O1xuXG4gXHQvLyBfX3dlYnBhY2tfcHVibGljX3BhdGhfX1xuIFx0X193ZWJwYWNrX3JlcXVpcmVfXy5wID0gXCJcIjtcblxuXG4gXHQvLyBMb2FkIGVudHJ5IG1vZHVsZSBhbmQgcmV0dXJuIGV4cG9ydHNcbiBcdHJldHVybiBfX3dlYnBhY2tfcmVxdWlyZV9fKF9fd2VicGFja19yZXF1aXJlX18ucyA9IFwiLi9zcmMvbWFpbi50c1wiKTtcbiIsImNvbnNvbGUubG9nKCdJdCB3b3JrcycpO1xuIl0sInNvdXJjZVJvb3QiOiIifQ==
    

    最佳答案

    ew,我设法做到了。这是需要做的:

  • 在webpack配置中:
  • 将目标设置为“节点”
    config.target = 'node';
    
  • 将输出库目标设置为commonjs2
    config.output.libraryTarget = 'commonjs2';
    
  • 设置常规devtool
    config.devtool = 'source-map';
    

    内联源 map 无法在Screeps中使用。
  • 设置外部
    config.externals = {
      'main.js.map': 'main.js.map',
    };
    

  • 这样一来,我们就可以在代码中编写require('main.js.map'),以在Screeps运行时中加载源映射文件,从而使Webpack不再使用它。
  • 在tsconfig.json中,将config.compilerOptions.sourceMap设置为true
  • 将您的代码上传到Screeps服务器:
  • 照常上载main.js捆绑文件。
  • 上传您的源 map 文件。将其命名为main.js.map.js。最后一个.js很重要-Screeps游戏会切断它,留下所需的main.js.map
  • 在运行时自己解析源 map !
  • yarn add source-map/npm -i source-map --save
  • 保留其版本^ 0.6.1。 ^ 0.7(目前最新)仅是异步的。异步代码不适用于Screeps。
  • 使用它来手动构建您的stacktrace消息错误。然后使用console.log()打印它。
  • 是的,这花费了游戏中的CPU。缓存您的错误消息,以便在遇到新错误时只对它解析一次,而不是在每个滴答声中都解析一次。
  • 另外,源 map 在模拟模式下将不起作用(我希望我能更快地知道)。
  • 将代码包装在错误映射器周围:
    export const loop = () => {
      errorMapper(tick)();
    };
    
    const tick = () => { /* your regular code for current tick */};
    
  • 以明智的方式进行调试很高兴!


  • 实际上,这是我的error-mapper.ts:
    import { escape } from 'lodash';
    import { MappedPosition, SourceMapConsumer } from 'source-map'; // leave it at version ^0.6.1. ^0.7 is async only.
    
    export default function errorMapper(tick: () => void): () => void {
        return () => {
            try {
                tick();
            } catch (error) {
                if (error instanceof Error) {
                    const isSimulation: boolean = ('sim' in Game.rooms);
                    if (isSimulation) {
                        printOriginalError(error);
                    } else {
                        printStackTrace(error);
                    }
                } else {
                    throw error;
                }
            }
        };
    }
    
    // tslint:disable-next-line: no-var-requires
    const consumer: SourceMapConsumer = new SourceMapConsumer(require('main.js.map')); // High CPU usage!
    const cache: { [key: string]: string } = {};
    
    function getSourceMapStackTrace(error: Error | string): string {
        const originalStackTrace: string = error instanceof Error ? error.stack as string : error;
        if (cache[originalStackTrace]) {
            return cache[originalStackTrace];
        }
    
        const re = /^\s+at\s+(.+?\s+)?\(?([0-z._\-\\\/]+):(\d+):(\d+)\)?$/gm;
        let match: RegExpExecArray | null;
        let outputStackTrace: string = error.toString();
    
        // tslint:disable-next-line:no-conditional-assignment
        while ((match = re.exec(originalStackTrace)) !== null) {
            const nameFromOriginalStackTrace: string = match[1];
            const isStackTraceLineControlledByMe: boolean = match[2] === 'main';
            const lineFromOriginalStackTrace: number = parseInt(match[3], 10);
            const columnFromOriginalStackTrace: number = parseInt(match[4], 10);
    
            if (!isStackTraceLineControlledByMe) {
                break;
            }
    
            const { name, source, line, column }: MappedPosition = consumer.originalPositionFor({
                column: columnFromOriginalStackTrace,
                line: lineFromOriginalStackTrace,
            });
    
            if (!line) {
                break;
            }
    
            const finalName = (name) ? name : (nameFromOriginalStackTrace) ? nameFromOriginalStackTrace : '';
    
            outputStackTrace += stripWebpackFromStackTrace(
                `\n    at ${finalName}(${source}:${line}:${column})`,
            );
        }
    
        cache[originalStackTrace] = outputStackTrace;
        return outputStackTrace;
    }
    
    function printOriginalError(error: Error) {
        const message = `Source maps don't work in the Simulation mode.`;
        console.log(`<span style="color: tomato">${message}\n${escape(error.stack)}</span>`);
    }
    
    function printStackTrace(error: Error) {
        const errorMessage = escape(getSourceMapStackTrace(error));
        console.log(`<span style="color: tomato">${errorMessage}</span>`);
        Game.notify(errorMessage);
    }
    
    function stripWebpackFromStackTrace(text: string): string {
        return text.replace('webpack:///', '');
    }
    

    另外,感谢screeps-typescript-starter,因为它对我在Screeps用例中对source-map库的使用很有帮助。如果我不想编写和理解我所有的Screeps代码并坚持使用Webpack,那么我可能不必在这个问题上花费太多。 :)

    10-07 19:04
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