diff options
Diffstat (limited to 'node_modules/source-map-support')
| -rw-r--r-- | node_modules/source-map-support/LICENSE.md | 21 | ||||
| -rw-r--r-- | node_modules/source-map-support/README.md | 284 | ||||
| -rw-r--r-- | node_modules/source-map-support/browser-source-map-support.js | 114 | ||||
| -rw-r--r-- | node_modules/source-map-support/package.json | 31 | ||||
| -rw-r--r-- | node_modules/source-map-support/register-hook-require.js | 1 | ||||
| -rw-r--r-- | node_modules/source-map-support/register.js | 1 | ||||
| -rw-r--r-- | node_modules/source-map-support/source-map-support.js | 625 |
7 files changed, 1077 insertions, 0 deletions
diff --git a/node_modules/source-map-support/LICENSE.md b/node_modules/source-map-support/LICENSE.md new file mode 100644 index 0000000..6247ca9 --- /dev/null +++ b/node_modules/source-map-support/LICENSE.md @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2014 Evan Wallace + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/node_modules/source-map-support/README.md b/node_modules/source-map-support/README.md new file mode 100644 index 0000000..40228b7 --- /dev/null +++ b/node_modules/source-map-support/README.md @@ -0,0 +1,284 @@ +# Source Map Support +[](https://travis-ci.org/evanw/node-source-map-support) + +This module provides source map support for stack traces in node via the [V8 stack trace API](https://github.com/v8/v8/wiki/Stack-Trace-API). It uses the [source-map](https://github.com/mozilla/source-map) module to replace the paths and line numbers of source-mapped files with their original paths and line numbers. The output mimics node's stack trace format with the goal of making every compile-to-JS language more of a first-class citizen. Source maps are completely general (not specific to any one language) so you can use source maps with multiple compile-to-JS languages in the same node process. + +## Installation and Usage + +#### Node support + +``` +$ npm install source-map-support +``` + +Source maps can be generated using libraries such as [source-map-index-generator](https://github.com/twolfson/source-map-index-generator). Once you have a valid source map, place a source mapping comment somewhere in the file (usually done automatically or with an option by your transpiler): + +``` +//# sourceMappingURL=path/to/source.map +``` + +If multiple sourceMappingURL comments exist in one file, the last sourceMappingURL comment will be +respected (e.g. if a file mentions the comment in code, or went through multiple transpilers). +The path should either be absolute or relative to the compiled file. + +From here you have two options. + +##### CLI Usage + +```bash +node -r source-map-support/register compiled.js +``` + +##### Programmatic Usage + +Put the following line at the top of the compiled file. + +```js +require('source-map-support').install(); +``` + +It is also possible to install the source map support directly by +requiring the `register` module which can be handy with ES6: + +```js +import 'source-map-support/register' + +// Instead of: +import sourceMapSupport from 'source-map-support' +sourceMapSupport.install() +``` +Note: if you're using babel-register, it includes source-map-support already. + +It is also very useful with Mocha: + +``` +$ mocha --require source-map-support/register tests/ +``` + +#### Browser support + +This library also works in Chrome. While the DevTools console already supports source maps, the V8 engine doesn't and `Error.prototype.stack` will be incorrect without this library. Everything will just work if you deploy your source files using [browserify](http://browserify.org/). Just make sure to pass the `--debug` flag to the browserify command so your source maps are included in the bundled code. + +This library also works if you use another build process or just include the source files directly. In this case, include the file `browser-source-map-support.js` in your page and call `sourceMapSupport.install()`. It contains the whole library already bundled for the browser using browserify. + +```html +<script src="browser-source-map-support.js"></script> +<script>sourceMapSupport.install();</script> +``` + +This library also works if you use AMD (Asynchronous Module Definition), which is used in tools like [RequireJS](http://requirejs.org/). Just list `browser-source-map-support` as a dependency: + +```html +<script> + define(['browser-source-map-support'], function(sourceMapSupport) { + sourceMapSupport.install(); + }); +</script> +``` + +## Options + +This module installs two things: a change to the `stack` property on `Error` objects and a handler for uncaught exceptions that mimics node's default exception handler (the handler can be seen in the demos below). You may want to disable the handler if you have your own uncaught exception handler. This can be done by passing an argument to the installer: + +```js +require('source-map-support').install({ + handleUncaughtExceptions: false +}); +``` + +This module loads source maps from the filesystem by default. You can provide alternate loading behavior through a callback as shown below. For example, [Meteor](https://github.com/meteor) keeps all source maps cached in memory to avoid disk access. + +```js +require('source-map-support').install({ + retrieveSourceMap: function(source) { + if (source === 'compiled.js') { + return { + url: 'original.js', + map: fs.readFileSync('compiled.js.map', 'utf8') + }; + } + return null; + } +}); +``` + +The module will by default assume a browser environment if XMLHttpRequest and window are defined. If either of these do not exist it will instead assume a node environment. +In some rare cases, e.g. when running a browser emulation and where both variables are also set, you can explictly specify the environment to be either 'browser' or 'node'. + +```js +require('source-map-support').install({ + environment: 'node' +}); +``` + +To support files with inline source maps, the `hookRequire` options can be specified, which will monitor all source files for inline source maps. + + +```js +require('source-map-support').install({ + hookRequire: true +}); +``` + +This monkey patches the `require` module loading chain, so is not enabled by default and is not recommended for any sort of production usage. + +## Demos + +#### Basic Demo + +original.js: + +```js +throw new Error('test'); // This is the original code +``` + +compiled.js: + +```js +require('source-map-support').install(); + +throw new Error('test'); // This is the compiled code +// The next line defines the sourceMapping. +//# sourceMappingURL=compiled.js.map +``` + +compiled.js.map: + +```json +{ + "version": 3, + "file": "compiled.js", + "sources": ["original.js"], + "names": [], + "mappings": ";;AAAA,MAAM,IAAI" +} +``` + +Run compiled.js using node (notice how the stack trace uses original.js instead of compiled.js): + +``` +$ node compiled.js + +original.js:1 +throw new Error('test'); // This is the original code + ^ +Error: test + at Object.<anonymous> (original.js:1:7) + at Module._compile (module.js:456:26) + at Object.Module._extensions..js (module.js:474:10) + at Module.load (module.js:356:32) + at Function.Module._load (module.js:312:12) + at Function.Module.runMain (module.js:497:10) + at startup (node.js:119:16) + at node.js:901:3 +``` + +#### TypeScript Demo + +demo.ts: + +```typescript +declare function require(name: string); +require('source-map-support').install(); +class Foo { + constructor() { this.bar(); } + bar() { throw new Error('this is a demo'); } +} +new Foo(); +``` + +Compile and run the file using the TypeScript compiler from the terminal: + +``` +$ npm install source-map-support typescript +$ node_modules/typescript/bin/tsc -sourcemap demo.ts +$ node demo.js + +demo.ts:5 + bar() { throw new Error('this is a demo'); } + ^ +Error: this is a demo + at Foo.bar (demo.ts:5:17) + at new Foo (demo.ts:4:24) + at Object.<anonymous> (demo.ts:7:1) + at Module._compile (module.js:456:26) + at Object.Module._extensions..js (module.js:474:10) + at Module.load (module.js:356:32) + at Function.Module._load (module.js:312:12) + at Function.Module.runMain (module.js:497:10) + at startup (node.js:119:16) + at node.js:901:3 +``` + +There is also the option to use `-r source-map-support/register` with typescript, without the need add the `require('source-map-support').install()` in the code base: + +``` +$ npm install source-map-support typescript +$ node_modules/typescript/bin/tsc -sourcemap demo.ts +$ node -r source-map-support/register demo.js + +demo.ts:5 + bar() { throw new Error('this is a demo'); } + ^ +Error: this is a demo + at Foo.bar (demo.ts:5:17) + at new Foo (demo.ts:4:24) + at Object.<anonymous> (demo.ts:7:1) + at Module._compile (module.js:456:26) + at Object.Module._extensions..js (module.js:474:10) + at Module.load (module.js:356:32) + at Function.Module._load (module.js:312:12) + at Function.Module.runMain (module.js:497:10) + at startup (node.js:119:16) + at node.js:901:3 +``` + +#### CoffeeScript Demo + +demo.coffee: + +```coffee +require('source-map-support').install() +foo = -> + bar = -> throw new Error 'this is a demo' + bar() +foo() +``` + +Compile and run the file using the CoffeeScript compiler from the terminal: + +```sh +$ npm install source-map-support coffeescript +$ node_modules/.bin/coffee --map --compile demo.coffee +$ node demo.js + +demo.coffee:3 + bar = -> throw new Error 'this is a demo' + ^ +Error: this is a demo + at bar (demo.coffee:3:22) + at foo (demo.coffee:4:3) + at Object.<anonymous> (demo.coffee:5:1) + at Object.<anonymous> (demo.coffee:1:1) + at Module._compile (module.js:456:26) + at Object.Module._extensions..js (module.js:474:10) + at Module.load (module.js:356:32) + at Function.Module._load (module.js:312:12) + at Function.Module.runMain (module.js:497:10) + at startup (node.js:119:16) +``` + +## Tests + +This repo contains both automated tests for node and manual tests for the browser. The automated tests can be run using mocha (type `mocha` in the root directory). To run the manual tests: + +* Build the tests using `build.js` +* Launch the HTTP server (`npm run serve-tests`) and visit + * http://127.0.0.1:1336/amd-test + * http://127.0.0.1:1336/browser-test + * http://127.0.0.1:1336/browserify-test - **Currently not working** due to a bug with browserify (see [pull request #66](https://github.com/evanw/node-source-map-support/pull/66) for details). +* For `header-test`, run `server.js` inside that directory and visit http://127.0.0.1:1337/ + +## License + +This code is available under the [MIT license](http://opensource.org/licenses/MIT). diff --git a/node_modules/source-map-support/browser-source-map-support.js b/node_modules/source-map-support/browser-source-map-support.js new file mode 100644 index 0000000..782da50 --- /dev/null +++ b/node_modules/source-map-support/browser-source-map-support.js @@ -0,0 +1,114 @@ +/* + * Support for source maps in V8 stack traces + * https://github.com/evanw/node-source-map-support + */ +/* + The buffer module from node.js, for the browser. + + @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org> + license MIT +*/ +(this.define||function(R,U){this.sourceMapSupport=U()})("browser-source-map-support",function(R){(function e(C,J,A){function p(f,c){if(!J[f]){if(!C[f]){var l="function"==typeof require&&require;if(!c&&l)return l(f,!0);if(t)return t(f,!0);throw Error("Cannot find module '"+f+"'");}l=J[f]={exports:{}};C[f][0].call(l.exports,function(q){var r=C[f][1][q];return p(r?r:q)},l,l.exports,e,C,J,A)}return J[f].exports}for(var t="function"==typeof require&&require,m=0;m<A.length;m++)p(A[m]);return p})({1:[function(C, +J,A){R=C("./source-map-support")},{"./source-map-support":21}],2:[function(C,J,A){(function(e){function p(m){m=m.charCodeAt(0);if(43===m)return 62;if(47===m)return 63;if(48>m)return-1;if(58>m)return m-48+52;if(91>m)return m-65;if(123>m)return m-97+26}var t="undefined"!==typeof Uint8Array?Uint8Array:Array;e.toByteArray=function(m){function f(d){q[k++]=d}if(0<m.length%4)throw Error("Invalid string. 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this[a]&128?-1*(255-this[a]+1):this[a]}; +e.prototype.readInt16LE=function(a,b){b||t(a,2,this.length);var h=this[a]|this[a+1]<<8;return h&32768?h|4294901760:h};e.prototype.readInt16BE=function(a,b){b||t(a,2,this.length);var h=this[a+1]|this[a]<<8;return h&32768?h|4294901760:h};e.prototype.readInt32LE=function(a,b){b||t(a,4,this.length);return this[a]|this[a+1]<<8|this[a+2]<<16|this[a+3]<<24};e.prototype.readInt32BE=function(a,b){b||t(a,4,this.length);return this[a]<<24|this[a+1]<<16|this[a+2]<<8|this[a+3]};e.prototype.readFloatLE=function(a, +b){b||t(a,4,this.length);return v.read(this,a,!0,23,4)};e.prototype.readFloatBE=function(a,b){b||t(a,4,this.length);return v.read(this,a,!1,23,4)};e.prototype.readDoubleLE=function(a,b){b||t(a,8,this.length);return v.read(this,a,!0,52,8)};e.prototype.readDoubleBE=function(a,b){b||t(a,8,this.length);return 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k&&(d=f.parseSourceMapInput(k));return null!=d.sections?new m(d,u):new p(d,u)}function p(k,u){var d=k;"string"===typeof k&&(d=f.parseSourceMapInput(k));var g=f.getArg(d,"version"),n=f.getArg(d,"sources"),v=f.getArg(d,"names",[]),z=f.getArg(d,"sourceRoot",null),G=f.getArg(d,"sourcesContent",null),D=f.getArg(d, +"mappings");d=f.getArg(d,"file",null);if(g!=this._version)throw Error("Unsupported version: "+g);z&&(z=f.normalize(z));n=n.map(String).map(f.normalize).map(function(L){return z&&f.isAbsolute(z)&&f.isAbsolute(L)?f.relative(z,L):L});this._names=l.fromArray(v.map(String),!0);this._sources=l.fromArray(n,!0);this.sourceRoot=z;this.sourcesContent=G;this._mappings=D;this._sourceMapURL=u;this.file=d}function t(){this.generatedColumn=this.generatedLine=0;this.name=this.originalColumn=this.originalLine=this.source= +null}function m(k,u){var d=k;"string"===typeof k&&(d=f.parseSourceMapInput(k));var g=f.getArg(d,"version");d=f.getArg(d,"sections");if(g!=this._version)throw Error("Unsupported version: "+g);this._sources=new l;this._names=new l;var n={line:-1,column:0};this._sections=d.map(function(v){if(v.url)throw Error("Support for url field in sections not implemented.");var z=f.getArg(v,"offset"),G=f.getArg(z,"line"),D=f.getArg(z,"column");if(G<n.line||G===n.line&&D<n.column)throw Error("Section offsets must be ordered and non-overlapping."); +n=z;return{generatedOffset:{generatedLine:G+1,generatedColumn:D+1},consumer:new e(f.getArg(v,"map"),u)}})}var f=C("./util"),c=C("./binary-search"),l=C("./array-set").ArraySet,q=C("./base64-vlq"),r=C("./quick-sort").quickSort;e.fromSourceMap=function(k){return p.fromSourceMap(k)};e.prototype._version=3;e.prototype.__generatedMappings=null;Object.defineProperty(e.prototype,"_generatedMappings",{configurable:!0,enumerable:!0,get:function(){this.__generatedMappings||this._parseMappings(this._mappings, +this.sourceRoot);return this.__generatedMappings}});e.prototype.__originalMappings=null;Object.defineProperty(e.prototype,"_originalMappings",{configurable:!0,enumerable:!0,get:function(){this.__originalMappings||this._parseMappings(this._mappings,this.sourceRoot);return this.__originalMappings}});e.prototype._charIsMappingSeparator=function(k,u){var d=k.charAt(u);return";"===d||","===d};e.prototype._parseMappings=function(k,u){throw Error("Subclasses must implement _parseMappings");};e.GENERATED_ORDER= +1;e.ORIGINAL_ORDER=2;e.GREATEST_LOWER_BOUND=1;e.LEAST_UPPER_BOUND=2;e.prototype.eachMapping=function(k,u,d){u=u||null;switch(d||e.GENERATED_ORDER){case e.GENERATED_ORDER:d=this._generatedMappings;break;case e.ORIGINAL_ORDER:d=this._originalMappings;break;default:throw Error("Unknown order of iteration.");}var g=this.sourceRoot;d.map(function(n){var v=null===n.source?null:this._sources.at(n.source);v=f.computeSourceURL(g,v,this._sourceMapURL);return{source:v,generatedLine:n.generatedLine,generatedColumn:n.generatedColumn, +originalLine:n.originalLine,originalColumn:n.originalColumn,name:null===n.name?null:this._names.at(n.name)}},this).forEach(k,u)};e.prototype.allGeneratedPositionsFor=function(k){var u=f.getArg(k,"line"),d={source:f.getArg(k,"source"),originalLine:u,originalColumn:f.getArg(k,"column",0)};null!=this.sourceRoot&&(d.source=f.relative(this.sourceRoot,d.source));if(!this._sources.has(d.source))return[];d.source=this._sources.indexOf(d.source);var g=[];d=this._findMapping(d,this._originalMappings,"originalLine", +"originalColumn",f.compareByOriginalPositions,c.LEAST_UPPER_BOUND);if(0<=d){var n=this._originalMappings[d];if(void 0===k.column)for(u=n.originalLine;n&&n.originalLine===u;)g.push({line:f.getArg(n,"generatedLine",null),column:f.getArg(n,"generatedColumn",null),lastColumn:f.getArg(n,"lastGeneratedColumn",null)}),n=this._originalMappings[++d];else for(k=n.originalColumn;n&&n.originalLine===u&&n.originalColumn==k;)g.push({line:f.getArg(n,"generatedLine",null),column:f.getArg(n,"generatedColumn",null), +lastColumn:f.getArg(n,"lastGeneratedColumn",null)}),n=this._originalMappings[++d]}return g};A.SourceMapConsumer=e;p.prototype=Object.create(e.prototype);p.prototype.consumer=e;p.fromSourceMap=function(k,u){var d=Object.create(p.prototype),g=d._names=l.fromArray(k._names.toArray(),!0),n=d._sources=l.fromArray(k._sources.toArray(),!0);d.sourceRoot=k._sourceRoot;d.sourcesContent=k._generateSourcesContent(d._sources.toArray(),d.sourceRoot);d.file=k._file;d._sourceMapURL=u;for(var v=k._mappings.toArray().slice(), +z=d.__generatedMappings=[],G=d.__originalMappings=[],D=0,L=v.length;D<L;D++){var a=v[D],b=new t;b.generatedLine=a.generatedLine;b.generatedColumn=a.generatedColumn;a.source&&(b.source=n.indexOf(a.source),b.originalLine=a.originalLine,b.originalColumn=a.originalColumn,a.name&&(b.name=g.indexOf(a.name)),G.push(b));z.push(b)}r(d.__originalMappings,f.compareByOriginalPositions);return d};p.prototype._version=3;Object.defineProperty(p.prototype,"sources",{get:function(){return this._sources.toArray().map(function(k){return f.computeSourceURL(this.sourceRoot, +k,this._sourceMapURL)},this)}});p.prototype._parseMappings=function(k,u){for(var d=1,g=0,n=0,v=0,z=0,G=0,D=k.length,L=0,a={},b={},h=[],w=[],y,I,K,N,P;L<D;)if(";"===k.charAt(L))d++,L++,g=0;else if(","===k.charAt(L))L++;else{y=new t;y.generatedLine=d;for(N=L;N<D&&!this._charIsMappingSeparator(k,N);N++);I=k.slice(L,N);if(K=a[I])L+=I.length;else{for(K=[];L<N;)q.decode(k,L,b),P=b.value,L=b.rest,K.push(P);if(2===K.length)throw Error("Found a source, but no line and column");if(3===K.length)throw Error("Found a source and line, but no column"); +a[I]=K}y.generatedColumn=g+K[0];g=y.generatedColumn;1<K.length&&(y.source=z+K[1],z+=K[1],y.originalLine=n+K[2],n=y.originalLine,y.originalLine+=1,y.originalColumn=v+K[3],v=y.originalColumn,4<K.length&&(y.name=G+K[4],G+=K[4]));w.push(y);"number"===typeof y.originalLine&&h.push(y)}r(w,f.compareByGeneratedPositionsDeflated);this.__generatedMappings=w;r(h,f.compareByOriginalPositions);this.__originalMappings=h};p.prototype._findMapping=function(k,u,d,g,n,v){if(0>=k[d])throw new TypeError("Line must be greater than or equal to 1, got "+ +k[d]);if(0>k[g])throw new TypeError("Column must be greater than or equal to 0, got "+k[g]);return c.search(k,u,n,v)};p.prototype.computeColumnSpans=function(){for(var k=0;k<this._generatedMappings.length;++k){var u=this._generatedMappings[k];if(k+1<this._generatedMappings.length){var d=this._generatedMappings[k+1];if(u.generatedLine===d.generatedLine){u.lastGeneratedColumn=d.generatedColumn-1;continue}}u.lastGeneratedColumn=Infinity}};p.prototype.originalPositionFor=function(k){var u={generatedLine:f.getArg(k, +"line"),generatedColumn:f.getArg(k,"column")};k=this._findMapping(u,this._generatedMappings,"generatedLine","generatedColumn",f.compareByGeneratedPositionsDeflated,f.getArg(k,"bias",e.GREATEST_LOWER_BOUND));if(0<=k&&(k=this._generatedMappings[k],k.generatedLine===u.generatedLine)){u=f.getArg(k,"source",null);null!==u&&(u=this._sources.at(u),u=f.computeSourceURL(this.sourceRoot,u,this._sourceMapURL));var d=f.getArg(k,"name",null);null!==d&&(d=this._names.at(d));return{source:u,line:f.getArg(k,"originalLine", +null),column:f.getArg(k,"originalColumn",null),name:d}}return{source:null,line:null,column:null,name:null}};p.prototype.hasContentsOfAllSources=function(){return this.sourcesContent?this.sourcesContent.length>=this._sources.size()&&!this.sourcesContent.some(function(k){return null==k}):!1};p.prototype.sourceContentFor=function(k,u){if(!this.sourcesContent)return null;var d=k;null!=this.sourceRoot&&(d=f.relative(this.sourceRoot,d));if(this._sources.has(d))return this.sourcesContent[this._sources.indexOf(d)]; +var g=this.sources,n;for(n=0;n<g.length;++n)if(g[n]==k)return this.sourcesContent[n];var v;if(null!=this.sourceRoot&&(v=f.urlParse(this.sourceRoot))){g=d.replace(/^file:\/\//,"");if("file"==v.scheme&&this._sources.has(g))return this.sourcesContent[this._sources.indexOf(g)];if((!v.path||"/"==v.path)&&this._sources.has("/"+d))return this.sourcesContent[this._sources.indexOf("/"+d)]}if(u)return null;throw Error('"'+d+'" is not in the SourceMap.');};p.prototype.generatedPositionFor=function(k){var u= +f.getArg(k,"source");null!=this.sourceRoot&&(u=f.relative(this.sourceRoot,u));if(!this._sources.has(u))return{line:null,column:null,lastColumn:null};u=this._sources.indexOf(u);u={source:u,originalLine:f.getArg(k,"line"),originalColumn:f.getArg(k,"column")};k=this._findMapping(u,this._originalMappings,"originalLine","originalColumn",f.compareByOriginalPositions,f.getArg(k,"bias",e.GREATEST_LOWER_BOUND));return 0<=k&&(k=this._originalMappings[k],k.source===u.source)?{line:f.getArg(k,"generatedLine", +null),column:f.getArg(k,"generatedColumn",null),lastColumn:f.getArg(k,"lastGeneratedColumn",null)}:{line:null,column:null,lastColumn:null}};A.BasicSourceMapConsumer=p;m.prototype=Object.create(e.prototype);m.prototype.constructor=e;m.prototype._version=3;Object.defineProperty(m.prototype,"sources",{get:function(){for(var k=[],u=0;u<this._sections.length;u++)for(var d=0;d<this._sections[u].consumer.sources.length;d++)k.push(this._sections[u].consumer.sources[d]);return k}});m.prototype.originalPositionFor= +function(k){var u={generatedLine:f.getArg(k,"line"),generatedColumn:f.getArg(k,"column")},d=c.search(u,this._sections,function(g,n){var v=g.generatedLine-n.generatedOffset.generatedLine;return v?v:g.generatedColumn-n.generatedOffset.generatedColumn});return(d=this._sections[d])?d.consumer.originalPositionFor({line:u.generatedLine-(d.generatedOffset.generatedLine-1),column:u.generatedColumn-(d.generatedOffset.generatedLine===u.generatedLine?d.generatedOffset.generatedColumn-1:0),bias:k.bias}):{source:null, +line:null,column:null,name:null}};m.prototype.hasContentsOfAllSources=function(){return this._sections.every(function(k){return k.consumer.hasContentsOfAllSources()})};m.prototype.sourceContentFor=function(k,u){for(var d=0;d<this._sections.length;d++){var g=this._sections[d].consumer.sourceContentFor(k,!0);if(g)return g}if(u)return null;throw Error('"'+k+'" is not in the SourceMap.');};m.prototype.generatedPositionFor=function(k){for(var u=0;u<this._sections.length;u++){var d=this._sections[u];if(-1!== +d.consumer.sources.indexOf(f.getArg(k,"source"))){var g=d.consumer.generatedPositionFor(k);if(g)return{line:g.line+(d.generatedOffset.generatedLine-1),column:g.column+(d.generatedOffset.generatedLine===g.line?d.generatedOffset.generatedColumn-1:0)}}}return{line:null,column:null}};m.prototype._parseMappings=function(k,u){this.__generatedMappings=[];this.__originalMappings=[];for(var d=0;d<this._sections.length;d++)for(var g=this._sections[d],n=g.consumer._generatedMappings,v=0;v<n.length;v++){var z= +n[v],G=g.consumer._sources.at(z.source);G=f.computeSourceURL(g.consumer.sourceRoot,G,this._sourceMapURL);this._sources.add(G);G=this._sources.indexOf(G);var D=null;z.name&&(D=g.consumer._names.at(z.name),this._names.add(D),D=this._names.indexOf(D));z={source:G,generatedLine:z.generatedLine+(g.generatedOffset.generatedLine-1),generatedColumn:z.generatedColumn+(g.generatedOffset.generatedLine===z.generatedLine?g.generatedOffset.generatedColumn-1:0),originalLine:z.originalLine,originalColumn:z.originalColumn, +name:D};this.__generatedMappings.push(z);"number"===typeof z.originalLine&&this.__originalMappings.push(z)}r(this.__generatedMappings,f.compareByGeneratedPositionsDeflated);r(this.__originalMappings,f.compareByOriginalPositions)};A.IndexedSourceMapConsumer=m},{"./array-set":10,"./base64-vlq":11,"./binary-search":13,"./quick-sort":15,"./util":19}],17:[function(C,J,A){function e(c){c||(c={});this._file=t.getArg(c,"file",null);this._sourceRoot=t.getArg(c,"sourceRoot",null);this._skipValidation=t.getArg(c, +"skipValidation",!1);this._sources=new m;this._names=new m;this._mappings=new f;this._sourcesContents=null}var p=C("./base64-vlq"),t=C("./util"),m=C("./array-set").ArraySet,f=C("./mapping-list").MappingList;e.prototype._version=3;e.fromSourceMap=function(c){var l=c.sourceRoot,q=new e({file:c.file,sourceRoot:l});c.eachMapping(function(r){var k={generated:{line:r.generatedLine,column:r.generatedColumn}};null!=r.source&&(k.source=r.source,null!=l&&(k.source=t.relative(l,k.source)),k.original={line:r.originalLine, +column:r.originalColumn},null!=r.name&&(k.name=r.name));q.addMapping(k)});c.sources.forEach(function(r){var k=r;null!==l&&(k=t.relative(l,r));q._sources.has(k)||q._sources.add(k);k=c.sourceContentFor(r);null!=k&&q.setSourceContent(r,k)});return q};e.prototype.addMapping=function(c){var l=t.getArg(c,"generated"),q=t.getArg(c,"original",null),r=t.getArg(c,"source",null);c=t.getArg(c,"name",null);this._skipValidation||this._validateMapping(l,q,r,c);null!=r&&(r=String(r),this._sources.has(r)||this._sources.add(r)); +null!=c&&(c=String(c),this._names.has(c)||this._names.add(c));this._mappings.add({generatedLine:l.line,generatedColumn:l.column,originalLine:null!=q&&q.line,originalColumn:null!=q&&q.column,source:r,name:c})};e.prototype.setSourceContent=function(c,l){var q=c;null!=this._sourceRoot&&(q=t.relative(this._sourceRoot,q));null!=l?(this._sourcesContents||(this._sourcesContents=Object.create(null)),this._sourcesContents[t.toSetString(q)]=l):this._sourcesContents&&(delete this._sourcesContents[t.toSetString(q)], +0===Object.keys(this._sourcesContents).length&&(this._sourcesContents=null))};e.prototype.applySourceMap=function(c,l,q){var r=l;if(null==l){if(null==c.file)throw Error('SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, or the source map\'s "file" property. Both were omitted.');r=c.file}var k=this._sourceRoot;null!=k&&(r=t.relative(k,r));var u=new m,d=new m;this._mappings.unsortedForEach(function(g){if(g.source===r&&null!=g.originalLine){var n=c.originalPositionFor({line:g.originalLine, +column:g.originalColumn});null!=n.source&&(g.source=n.source,null!=q&&(g.source=t.join(q,g.source)),null!=k&&(g.source=t.relative(k,g.source)),g.originalLine=n.line,g.originalColumn=n.column,null!=n.name&&(g.name=n.name))}n=g.source;null==n||u.has(n)||u.add(n);g=g.name;null==g||d.has(g)||d.add(g)},this);this._sources=u;this._names=d;c.sources.forEach(function(g){var n=c.sourceContentFor(g);null!=n&&(null!=q&&(g=t.join(q,g)),null!=k&&(g=t.relative(k,g)),this.setSourceContent(g,n))},this)};e.prototype._validateMapping= +function(c,l,q,r){if(l&&"number"!==typeof l.line&&"number"!==typeof l.column)throw Error("original.line and original.column are not numbers -- you probably meant to omit the original mapping entirely and only map the generated position. If so, pass null for the original mapping instead of an object with empty or null values.");if(!(c&&"line"in c&&"column"in c&&0<c.line&&0<=c.column&&!l&&!q&&!r||c&&"line"in c&&"column"in c&&l&&"line"in l&&"column"in l&&0<c.line&&0<=c.column&&0<l.line&&0<=l.column&& +q))throw Error("Invalid mapping: "+JSON.stringify({generated:c,source:q,original:l,name:r}));};e.prototype._serializeMappings=function(){for(var c=0,l=1,q=0,r=0,k=0,u=0,d="",g,n,v,z=this._mappings.toArray(),G=0,D=z.length;G<D;G++){n=z[G];g="";if(n.generatedLine!==l)for(c=0;n.generatedLine!==l;)g+=";",l++;else if(0<G){if(!t.compareByGeneratedPositionsInflated(n,z[G-1]))continue;g+=","}g+=p.encode(n.generatedColumn-c);c=n.generatedColumn;null!=n.source&&(v=this._sources.indexOf(n.source),g+=p.encode(v- +u),u=v,g+=p.encode(n.originalLine-1-r),r=n.originalLine-1,g+=p.encode(n.originalColumn-q),q=n.originalColumn,null!=n.name&&(n=this._names.indexOf(n.name),g+=p.encode(n-k),k=n));d+=g}return d};e.prototype._generateSourcesContent=function(c,l){return c.map(function(q){if(!this._sourcesContents)return null;null!=l&&(q=t.relative(l,q));q=t.toSetString(q);return Object.prototype.hasOwnProperty.call(this._sourcesContents,q)?this._sourcesContents[q]:null},this)};e.prototype.toJSON=function(){var c={version:this._version, +sources:this._sources.toArray(),names:this._names.toArray(),mappings:this._serializeMappings()};null!=this._file&&(c.file=this._file);null!=this._sourceRoot&&(c.sourceRoot=this._sourceRoot);this._sourcesContents&&(c.sourcesContent=this._generateSourcesContent(c.sources,c.sourceRoot));return c};e.prototype.toString=function(){return JSON.stringify(this.toJSON())};A.SourceMapGenerator=e},{"./array-set":10,"./base64-vlq":11,"./mapping-list":14,"./util":19}],18:[function(C,J,A){function e(f,c,l,q,r){this.children= +[];this.sourceContents={};this.line=null==f?null:f;this.column=null==c?null:c;this.source=null==l?null:l;this.name=null==r?null:r;this.$$$isSourceNode$$$=!0;null!=q&&this.add(q)}var p=C("./source-map-generator").SourceMapGenerator,t=C("./util"),m=/(\r?\n)/;e.fromStringWithSourceMap=function(f,c,l){function q(z,G){if(null===z||void 0===z.source)r.add(G);else{var D=l?t.join(l,z.source):z.source;r.add(new e(z.originalLine,z.originalColumn,D,G,z.name))}}var r=new e,k=f.split(m),u=0,d=function(){var z= +u<k.length?k[u++]:void 0,G=(u<k.length?k[u++]:void 0)||"";return z+G},g=1,n=0,v=null;c.eachMapping(function(z){if(null!==v)if(g<z.generatedLine)q(v,d()),g++,n=0;else{var G=k[u]||"",D=G.substr(0,z.generatedColumn-n);k[u]=G.substr(z.generatedColumn-n);n=z.generatedColumn;q(v,D);v=z;return}for(;g<z.generatedLine;)r.add(d()),g++;n<z.generatedColumn&&(G=k[u]||"",r.add(G.substr(0,z.generatedColumn)),k[u]=G.substr(z.generatedColumn),n=z.generatedColumn);v=z},this);u<k.length&&(v&&q(v,d()),r.add(k.splice(u).join(""))); +c.sources.forEach(function(z){var G=c.sourceContentFor(z);null!=G&&(null!=l&&(z=t.join(l,z)),r.setSourceContent(z,G))});return r};e.prototype.add=function(f){if(Array.isArray(f))f.forEach(function(c){this.add(c)},this);else if(f.$$$isSourceNode$$$||"string"===typeof f)f&&this.children.push(f);else throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+f);return this};e.prototype.prepend=function(f){if(Array.isArray(f))for(var c=f.length-1;0<=c;c--)this.prepend(f[c]); +else if(f.$$$isSourceNode$$$||"string"===typeof f)this.children.unshift(f);else throw new TypeError("Expected a SourceNode, string, or an array of SourceNodes and strings. Got "+f);return this};e.prototype.walk=function(f){for(var c,l=0,q=this.children.length;l<q;l++)c=this.children[l],c.$$$isSourceNode$$$?c.walk(f):""!==c&&f(c,{source:this.source,line:this.line,column:this.column,name:this.name})};e.prototype.join=function(f){var c,l=this.children.length;if(0<l){var q=[];for(c=0;c<l-1;c++)q.push(this.children[c]), +q.push(f);q.push(this.children[c]);this.children=q}return this};e.prototype.replaceRight=function(f,c){var l=this.children[this.children.length-1];l.$$$isSourceNode$$$?l.replaceRight(f,c):"string"===typeof l?this.children[this.children.length-1]=l.replace(f,c):this.children.push("".replace(f,c));return this};e.prototype.setSourceContent=function(f,c){this.sourceContents[t.toSetString(f)]=c};e.prototype.walkSourceContents=function(f){for(var c=0,l=this.children.length;c<l;c++)this.children[c].$$$isSourceNode$$$&& +this.children[c].walkSourceContents(f);var q=Object.keys(this.sourceContents);c=0;for(l=q.length;c<l;c++)f(t.fromSetString(q[c]),this.sourceContents[q[c]])};e.prototype.toString=function(){var f="";this.walk(function(c){f+=c});return f};e.prototype.toStringWithSourceMap=function(f){var c="",l=1,q=0,r=new p(f),k=!1,u=null,d=null,g=null,n=null;this.walk(function(v,z){c+=v;null!==z.source&&null!==z.line&&null!==z.column?(u===z.source&&d===z.line&&g===z.column&&n===z.name||r.addMapping({source:z.source, +original:{line:z.line,column:z.column},generated:{line:l,column:q},name:z.name}),u=z.source,d=z.line,g=z.column,n=z.name,k=!0):k&&(r.addMapping({generated:{line:l,column:q}}),u=null,k=!1);for(var G=0,D=v.length;G<D;G++)10===v.charCodeAt(G)?(l++,q=0,G+1===D?(u=null,k=!1):k&&r.addMapping({source:z.source,original:{line:z.line,column:z.column},generated:{line:l,column:q},name:z.name})):q++});this.walkSourceContents(function(v,z){r.setSourceContent(v,z)});return{code:c,map:r}};A.SourceNode=e},{"./source-map-generator":17, +"./util":19}],19:[function(C,J,A){function e(d){return(d=d.match(k))?{scheme:d[1],auth:d[2],host:d[3],port:d[4],path:d[5]}:null}function p(d){var g="";d.scheme&&(g+=d.scheme+":");g+="//";d.auth&&(g+=d.auth+"@");d.host&&(g+=d.host);d.port&&(g+=":"+d.port);d.path&&(g+=d.path);return g}function t(d){var g=d,n=e(d);if(n){if(!n.path)return d;g=n.path}d=A.isAbsolute(g);g=g.split(/\/+/);for(var v,z=0,G=g.length-1;0<=G;G--)v=g[G],"."===v?g.splice(G,1):".."===v?z++:0<z&&(""===v?(g.splice(G+1,z),z=0):(g.splice(G, +2),z--));g=g.join("/");""===g&&(g=d?"/":".");return n?(n.path=g,p(n)):g}function m(d,g){""===d&&(d=".");""===g&&(g=".");var n=e(g),v=e(d);v&&(d=v.path||"/");if(n&&!n.scheme)return v&&(n.scheme=v.scheme),p(n);if(n||g.match(u))return g;if(v&&!v.host&&!v.path)return v.host=g,p(v);n="/"===g.charAt(0)?g:t(d.replace(/\/+$/,"")+"/"+g);return v?(v.path=n,p(v)):n}function f(d){return d}function c(d){return q(d)?"$"+d:d}function l(d){return q(d)?d.slice(1):d}function q(d){if(!d)return!1;var 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at [^(]+ \((.*):(\d+):(\d+)\)/.exec(x.stack);if(B){x=B[1];var F=+B[2];B=+B[3];var E=b[x];if(!E&&v&&v.existsSync(x))try{E=v.readFileSync(x,"utf8")}catch(H){E=""}if(E&&(E=E.split(/(?:\r\n|\r|\n)/)[F-1]))return x+":"+F+"\n"+E+"\n"+Array(B).join(" ")+ +"^"}return null}function d(){var x=e.emit;e.emit=function(B){if("uncaughtException"===B){var F=arguments[1]&&arguments[1].stack,E=0<this.listeners(B).length;if(F&&!E){F=arguments[1];E=u(F);var H="object"===typeof e&&null!==e?e.stderr:void 0;H&&H._handle&&H._handle.setBlocking&&H._handle.setBlocking(!0);E&&(console.error(),console.error(E));console.error(F.stack);"object"===typeof e&&null!==e&&"function"===typeof e.exit&&e.exit(1);return}}return x.apply(this,arguments)}}var g=C("source-map").SourceMapConsumer, +n=C("path");try{var v=C("fs");v.existsSync&&v.readFileSync||(v=null)}catch(x){}var z=C("buffer-from"),G=!1,D=!1,L=!1,a="auto",b={},h={},w=/^data:application\/json[^,]+base64,/,y=[],I=[],K=t(y);y.push(function(x){x=x.trim();/^file:/.test(x)&&(x=x.replace(/file:\/\/\/(\w:)?/,function(E,H){return H?"":"/"}));if(x in b)return b[x];var B="";try{if(v)v.existsSync(x)&&(B=v.readFileSync(x,"utf8"));else{var F=new XMLHttpRequest;F.open("GET",x,!1);F.send(null);4===F.readyState&&200===F.status&&(B=F.responseText)}}catch(E){}return b[x]= +B});var N=t(I);I.push(function(x){a:{if(p())try{var B=new XMLHttpRequest;B.open("GET",x,!1);B.send(null);var F=B.getResponseHeader("SourceMap")||B.getResponseHeader("X-SourceMap");if(F){var E=F;break a}}catch(M){}E=K(x);B=/(?:\/\/[@#][\s]*sourceMappingURL=([^\s'"]+)[\s]*$)|(?:\/\*[@#][\s]*sourceMappingURL=([^\s*'"]+)[\s]*(?:\*\/)[\s]*$)/mg;for(var H;F=B.exec(E);)H=F;E=H?H[1]:null}if(!E)return null;w.test(E)?(H=E.slice(E.indexOf(",")+1),H=z(H,"base64").toString(),E=x):(E=m(x,E),H=K(E));return H?{url:E, +map:H}:null});var P=y.slice(0),W=I.slice(0);A.wrapCallSite=r;A.getErrorSource=u;A.mapSourcePosition=f;A.retrieveSourceMap=N;A.install=function(x){x=x||{};if(x.environment&&(a=x.environment,-1===["node","browser","auto"].indexOf(a)))throw Error("environment "+a+" was unknown. Available options are {auto, browser, node}");x.retrieveFile&&(x.overrideRetrieveFile&&(y.length=0),y.unshift(x.retrieveFile));x.retrieveSourceMap&&(x.overrideRetrieveSourceMap&&(I.length=0),I.unshift(x.retrieveSourceMap));if(x.hookRequire&& +!p()){var B=J.require("module"),F=B.prototype._compile;F.__sourceMapSupport||(B.prototype._compile=function(E,H){b[H]=E;h[H]=void 0;return F.call(this,E,H)},B.prototype._compile.__sourceMapSupport=!0)}L||(L="emptyCacheBetweenOperations"in x?x.emptyCacheBetweenOperations:!1);G||(G=!0,Error.prepareStackTrace=k);if(!D){x="handleUncaughtExceptions"in x?x.handleUncaughtExceptions:!0;try{!1===J.require("worker_threads").isMainThread&&(x=!1)}catch(E){}x&&"object"===typeof e&&null!==e&&"function"===typeof e.on&& +(D=!0,d())}};A.resetRetrieveHandlers=function(){y.length=0;I.length=0;y=P.slice(0);I=W.slice(0);N=t(I);K=t(y)}}).call(this,C("g5I+bs"))},{"buffer-from":4,fs:3,"g5I+bs":9,path:8,"source-map":20}]},{},[1]);return R}); diff --git a/node_modules/source-map-support/package.json b/node_modules/source-map-support/package.json new file mode 100644 index 0000000..48ee1fd --- /dev/null +++ b/node_modules/source-map-support/package.json @@ -0,0 +1,31 @@ +{ + "name": "source-map-support", + "description": "Fixes stack traces for files with source maps", + "version": "0.5.21", + "main": "./source-map-support.js", + "scripts": { + "build": "node build.js", + "serve-tests": "http-server -p 1336", + "prepublish": "npm run build", + "test": "mocha" + }, + "dependencies": { + "buffer-from": "^1.0.0", + "source-map": "^0.6.0" + }, + "devDependencies": { + "browserify": "^4.2.3", + "coffeescript": "^1.12.7", + "http-server": "^0.11.1", + "mocha": "^3.5.3", + "webpack": "^1.15.0" + }, + "repository": { + "type": "git", + "url": "https://github.com/evanw/node-source-map-support" + }, + "bugs": { + "url": "https://github.com/evanw/node-source-map-support/issues" + }, + "license": "MIT" +} diff --git a/node_modules/source-map-support/register-hook-require.js b/node_modules/source-map-support/register-hook-require.js new file mode 100644 index 0000000..68fda03 --- /dev/null +++ b/node_modules/source-map-support/register-hook-require.js @@ -0,0 +1 @@ +require('./').install({hookRequire: true}); diff --git a/node_modules/source-map-support/register.js b/node_modules/source-map-support/register.js new file mode 100644 index 0000000..4f68e67 --- /dev/null +++ b/node_modules/source-map-support/register.js @@ -0,0 +1 @@ +require('./').install(); diff --git a/node_modules/source-map-support/source-map-support.js b/node_modules/source-map-support/source-map-support.js new file mode 100644 index 0000000..2942b5e --- /dev/null +++ b/node_modules/source-map-support/source-map-support.js @@ -0,0 +1,625 @@ +var SourceMapConsumer = require('source-map').SourceMapConsumer; +var path = require('path'); + +var fs; +try { + fs = require('fs'); + if (!fs.existsSync || !fs.readFileSync) { + // fs doesn't have all methods we need + fs = null; + } +} catch (err) { + /* nop */ +} + +var bufferFrom = require('buffer-from'); + +/** + * Requires a module which is protected against bundler minification. + * + * @param {NodeModule} mod + * @param {string} request + */ +function dynamicRequire(mod, request) { + return mod.require(request); +} + +// Only install once if called multiple times +var errorFormatterInstalled = false; +var uncaughtShimInstalled = false; + +// If true, the caches are reset before a stack trace formatting operation +var emptyCacheBetweenOperations = false; + +// Supports {browser, node, auto} +var environment = "auto"; + +// Maps a file path to a string containing the file contents +var fileContentsCache = {}; + +// Maps a file path to a source map for that file +var sourceMapCache = {}; + +// Regex for detecting source maps +var reSourceMap = /^data:application\/json[^,]+base64,/; + +// Priority list of retrieve handlers +var retrieveFileHandlers = []; +var retrieveMapHandlers = []; + +function isInBrowser() { + if (environment === "browser") + return true; + if (environment === "node") + return false; + return ((typeof window !== 'undefined') && (typeof XMLHttpRequest === 'function') && !(window.require && window.module && window.process && window.process.type === "renderer")); +} + +function hasGlobalProcessEventEmitter() { + return ((typeof process === 'object') && (process !== null) && (typeof process.on === 'function')); +} + +function globalProcessVersion() { + if ((typeof process === 'object') && (process !== null)) { + return process.version; + } else { + return ''; + } +} + +function globalProcessStderr() { + if ((typeof process === 'object') && (process !== null)) { + return process.stderr; + } +} + +function globalProcessExit(code) { + if ((typeof process === 'object') && (process !== null) && (typeof process.exit === 'function')) { + return process.exit(code); + } +} + +function handlerExec(list) { + return function(arg) { + for (var i = 0; i < list.length; i++) { + var ret = list[i](arg); + if (ret) { + return ret; + } + } + return null; + }; +} + +var retrieveFile = handlerExec(retrieveFileHandlers); + +retrieveFileHandlers.push(function(path) { + // Trim the path to make sure there is no extra whitespace. + path = path.trim(); + if (/^file:/.test(path)) { + // existsSync/readFileSync can't handle file protocol, but once stripped, it works + path = path.replace(/file:\/\/\/(\w:)?/, function(protocol, drive) { + return drive ? + '' : // file:///C:/dir/file -> C:/dir/file + '/'; // file:///root-dir/file -> /root-dir/file + }); + } + if (path in fileContentsCache) { + return fileContentsCache[path]; + } + + var contents = ''; + try { + if (!fs) { + // Use SJAX if we are in the browser + var xhr = new XMLHttpRequest(); + xhr.open('GET', path, /** async */ false); + xhr.send(null); + if (xhr.readyState === 4 && xhr.status === 200) { + contents = xhr.responseText; + } + } else if (fs.existsSync(path)) { + // Otherwise, use the filesystem + contents = fs.readFileSync(path, 'utf8'); + } + } catch (er) { + /* ignore any errors */ + } + + return fileContentsCache[path] = contents; +}); + +// Support URLs relative to a directory, but be careful about a protocol prefix +// in case we are in the browser (i.e. directories may start with "http://" or "file:///") +function supportRelativeURL(file, url) { + if (!file) return url; + var dir = path.dirname(file); + var match = /^\w+:\/\/[^\/]*/.exec(dir); + var protocol = match ? match[0] : ''; + var startPath = dir.slice(protocol.length); + if (protocol && /^\/\w\:/.test(startPath)) { + // handle file:///C:/ paths + protocol += '/'; + return protocol + path.resolve(dir.slice(protocol.length), url).replace(/\\/g, '/'); + } + return protocol + path.resolve(dir.slice(protocol.length), url); +} + +function retrieveSourceMapURL(source) { + var fileData; + + if (isInBrowser()) { + try { + var xhr = new XMLHttpRequest(); + xhr.open('GET', source, false); + xhr.send(null); + fileData = xhr.readyState === 4 ? xhr.responseText : null; + + // Support providing a sourceMappingURL via the SourceMap header + var sourceMapHeader = xhr.getResponseHeader("SourceMap") || + xhr.getResponseHeader("X-SourceMap"); + if (sourceMapHeader) { + return sourceMapHeader; + } + } catch (e) { + } + } + + // Get the URL of the source map + fileData = retrieveFile(source); + var re = /(?:\/\/[@#][\s]*sourceMappingURL=([^\s'"]+)[\s]*$)|(?:\/\*[@#][\s]*sourceMappingURL=([^\s*'"]+)[\s]*(?:\*\/)[\s]*$)/mg; + // Keep executing the search to find the *last* sourceMappingURL to avoid + // picking up sourceMappingURLs from comments, strings, etc. + var lastMatch, match; + while (match = re.exec(fileData)) lastMatch = match; + if (!lastMatch) return null; + return lastMatch[1]; +}; + +// Can be overridden by the retrieveSourceMap option to install. Takes a +// generated source filename; returns a {map, optional url} object, or null if +// there is no source map. The map field may be either a string or the parsed +// JSON object (ie, it must be a valid argument to the SourceMapConsumer +// constructor). +var retrieveSourceMap = handlerExec(retrieveMapHandlers); +retrieveMapHandlers.push(function(source) { + var sourceMappingURL = retrieveSourceMapURL(source); + if (!sourceMappingURL) return null; + + // Read the contents of the source map + var sourceMapData; + if (reSourceMap.test(sourceMappingURL)) { + // Support source map URL as a data url + var rawData = sourceMappingURL.slice(sourceMappingURL.indexOf(',') + 1); + sourceMapData = bufferFrom(rawData, "base64").toString(); + sourceMappingURL = source; + } else { + // Support source map URLs relative to the source URL + sourceMappingURL = supportRelativeURL(source, sourceMappingURL); + sourceMapData = retrieveFile(sourceMappingURL); + } + + if (!sourceMapData) { + return null; + } + + return { + url: sourceMappingURL, + map: sourceMapData + }; +}); + +function mapSourcePosition(position) { + var sourceMap = sourceMapCache[position.source]; + if (!sourceMap) { + // Call the (overrideable) retrieveSourceMap function to get the source map. + var urlAndMap = retrieveSourceMap(position.source); + if (urlAndMap) { + sourceMap = sourceMapCache[position.source] = { + url: urlAndMap.url, + map: new SourceMapConsumer(urlAndMap.map) + }; + + // Load all sources stored inline with the source map into the file cache + // to pretend like they are already loaded. They may not exist on disk. + if (sourceMap.map.sourcesContent) { + sourceMap.map.sources.forEach(function(source, i) { + var contents = sourceMap.map.sourcesContent[i]; + if (contents) { + var url = supportRelativeURL(sourceMap.url, source); + fileContentsCache[url] = contents; + } + }); + } + } else { + sourceMap = sourceMapCache[position.source] = { + url: null, + map: null + }; + } + } + + // Resolve the source URL relative to the URL of the source map + if (sourceMap && sourceMap.map && typeof sourceMap.map.originalPositionFor === 'function') { + var originalPosition = sourceMap.map.originalPositionFor(position); + + // Only return the original position if a matching line was found. If no + // matching line is found then we return position instead, which will cause + // the stack trace to print the path and line for the compiled file. It is + // better to give a precise location in the compiled file than a vague + // location in the original file. + if (originalPosition.source !== null) { + originalPosition.source = supportRelativeURL( + sourceMap.url, originalPosition.source); + return originalPosition; + } + } + + return position; +} + +// Parses code generated by FormatEvalOrigin(), a function inside V8: +// https://code.google.com/p/v8/source/browse/trunk/src/messages.js +function mapEvalOrigin(origin) { + // Most eval() calls are in this format + var match = /^eval at ([^(]+) \((.+):(\d+):(\d+)\)$/.exec(origin); + if (match) { + var position = mapSourcePosition({ + source: match[2], + line: +match[3], + column: match[4] - 1 + }); + return 'eval at ' + match[1] + ' (' + position.source + ':' + + position.line + ':' + (position.column + 1) + ')'; + } + + // Parse nested eval() calls using recursion + match = /^eval at ([^(]+) \((.+)\)$/.exec(origin); + if (match) { + return 'eval at ' + match[1] + ' (' + mapEvalOrigin(match[2]) + ')'; + } + + // Make sure we still return useful information if we didn't find anything + return origin; +} + +// This is copied almost verbatim from the V8 source code at +// https://code.google.com/p/v8/source/browse/trunk/src/messages.js. The +// implementation of wrapCallSite() used to just forward to the actual source +// code of CallSite.prototype.toString but unfortunately a new release of V8 +// did something to the prototype chain and broke the shim. The only fix I +// could find was copy/paste. +function CallSiteToString() { + var fileName; + var fileLocation = ""; + if (this.isNative()) { + fileLocation = "native"; + } else { + fileName = this.getScriptNameOrSourceURL(); + if (!fileName && this.isEval()) { + fileLocation = this.getEvalOrigin(); + fileLocation += ", "; // Expecting source position to follow. + } + + if (fileName) { + fileLocation += fileName; + } else { + // Source code does not originate from a file and is not native, but we + // can still get the source position inside the source string, e.g. in + // an eval string. + fileLocation += "<anonymous>"; + } + var lineNumber = this.getLineNumber(); + if (lineNumber != null) { + fileLocation += ":" + lineNumber; + var columnNumber = this.getColumnNumber(); + if (columnNumber) { + fileLocation += ":" + columnNumber; + } + } + } + + var line = ""; + var functionName = this.getFunctionName(); + var addSuffix = true; + var isConstructor = this.isConstructor(); + var isMethodCall = !(this.isToplevel() || isConstructor); + if (isMethodCall) { + var typeName = this.getTypeName(); + // Fixes shim to be backward compatable with Node v0 to v4 + if (typeName === "[object Object]") { + typeName = "null"; + } + var methodName = this.getMethodName(); + if (functionName) { + if (typeName && functionName.indexOf(typeName) != 0) { + line += typeName + "."; + } + line += functionName; + if (methodName && functionName.indexOf("." + methodName) != functionName.length - methodName.length - 1) { + line += " [as " + methodName + "]"; + } + } else { + line += typeName + "." + (methodName || "<anonymous>"); + } + } else if (isConstructor) { + line += "new " + (functionName || "<anonymous>"); + } else if (functionName) { + line += functionName; + } else { + line += fileLocation; + addSuffix = false; + } + if (addSuffix) { + line += " (" + fileLocation + ")"; + } + return line; +} + +function cloneCallSite(frame) { + var object = {}; + Object.getOwnPropertyNames(Object.getPrototypeOf(frame)).forEach(function(name) { + object[name] = /^(?:is|get)/.test(name) ? function() { return frame[name].call(frame); } : frame[name]; + }); + object.toString = CallSiteToString; + return object; +} + +function wrapCallSite(frame, state) { + // provides interface backward compatibility + if (state === undefined) { + state = { nextPosition: null, curPosition: null } + } + if(frame.isNative()) { + state.curPosition = null; + return frame; + } + + // Most call sites will return the source file from getFileName(), but code + // passed to eval() ending in "//# sourceURL=..." will return the source file + // from getScriptNameOrSourceURL() instead + var source = frame.getFileName() || frame.getScriptNameOrSourceURL(); + if (source) { + var line = frame.getLineNumber(); + var column = frame.getColumnNumber() - 1; + + // Fix position in Node where some (internal) code is prepended. + // See https://github.com/evanw/node-source-map-support/issues/36 + // Header removed in node at ^10.16 || >=11.11.0 + // v11 is not an LTS candidate, we can just test the one version with it. + // Test node versions for: 10.16-19, 10.20+, 12-19, 20-99, 100+, or 11.11 + var noHeader = /^v(10\.1[6-9]|10\.[2-9][0-9]|10\.[0-9]{3,}|1[2-9]\d*|[2-9]\d|\d{3,}|11\.11)/; + var headerLength = noHeader.test(globalProcessVersion()) ? 0 : 62; + if (line === 1 && column > headerLength && !isInBrowser() && !frame.isEval()) { + column -= headerLength; + } + + var position = mapSourcePosition({ + source: source, + line: line, + column: column + }); + state.curPosition = position; + frame = cloneCallSite(frame); + var originalFunctionName = frame.getFunctionName; + frame.getFunctionName = function() { + if (state.nextPosition == null) { + return originalFunctionName(); + } + return state.nextPosition.name || originalFunctionName(); + }; + frame.getFileName = function() { return position.source; }; + frame.getLineNumber = function() { return position.line; }; + frame.getColumnNumber = function() { return position.column + 1; }; + frame.getScriptNameOrSourceURL = function() { return position.source; }; + return frame; + } + + // Code called using eval() needs special handling + var origin = frame.isEval() && frame.getEvalOrigin(); + if (origin) { + origin = mapEvalOrigin(origin); + frame = cloneCallSite(frame); + frame.getEvalOrigin = function() { return origin; }; + return frame; + } + + // If we get here then we were unable to change the source position + return frame; +} + +// This function is part of the V8 stack trace API, for more info see: +// https://v8.dev/docs/stack-trace-api +function prepareStackTrace(error, stack) { + if (emptyCacheBetweenOperations) { + fileContentsCache = {}; + sourceMapCache = {}; + } + + var name = error.name || 'Error'; + var message = error.message || ''; + var errorString = name + ": " + message; + + var state = { nextPosition: null, curPosition: null }; + var processedStack = []; + for (var i = stack.length - 1; i >= 0; i--) { + processedStack.push('\n at ' + wrapCallSite(stack[i], state)); + state.nextPosition = state.curPosition; + } + state.curPosition = state.nextPosition = null; + return errorString + processedStack.reverse().join(''); +} + +// Generate position and snippet of original source with pointer +function getErrorSource(error) { + var match = /\n at [^(]+ \((.*):(\d+):(\d+)\)/.exec(error.stack); + if (match) { + var source = match[1]; + var line = +match[2]; + var column = +match[3]; + + // Support the inline sourceContents inside the source map + var contents = fileContentsCache[source]; + + // Support files on disk + if (!contents && fs && fs.existsSync(source)) { + try { + contents = fs.readFileSync(source, 'utf8'); + } catch (er) { + contents = ''; + } + } + + // Format the line from the original source code like node does + if (contents) { + var code = contents.split(/(?:\r\n|\r|\n)/)[line - 1]; + if (code) { + return source + ':' + line + '\n' + code + '\n' + + new Array(column).join(' ') + '^'; + } + } + } + return null; +} + +function printErrorAndExit (error) { + var source = getErrorSource(error); + + // Ensure error is printed synchronously and not truncated + var stderr = globalProcessStderr(); + if (stderr && stderr._handle && stderr._handle.setBlocking) { + stderr._handle.setBlocking(true); + } + + if (source) { + console.error(); + console.error(source); + } + + console.error(error.stack); + globalProcessExit(1); +} + +function shimEmitUncaughtException () { + var origEmit = process.emit; + + process.emit = function (type) { + if (type === 'uncaughtException') { + var hasStack = (arguments[1] && arguments[1].stack); + var hasListeners = (this.listeners(type).length > 0); + + if (hasStack && !hasListeners) { + return printErrorAndExit(arguments[1]); + } + } + + return origEmit.apply(this, arguments); + }; +} + +var originalRetrieveFileHandlers = retrieveFileHandlers.slice(0); +var originalRetrieveMapHandlers = retrieveMapHandlers.slice(0); + +exports.wrapCallSite = wrapCallSite; +exports.getErrorSource = getErrorSource; +exports.mapSourcePosition = mapSourcePosition; +exports.retrieveSourceMap = retrieveSourceMap; + +exports.install = function(options) { + options = options || {}; + + if (options.environment) { + environment = options.environment; + if (["node", "browser", "auto"].indexOf(environment) === -1) { + throw new Error("environment " + environment + " was unknown. Available options are {auto, browser, node}") + } + } + + // Allow sources to be found by methods other than reading the files + // directly from disk. + if (options.retrieveFile) { + if (options.overrideRetrieveFile) { + retrieveFileHandlers.length = 0; + } + + retrieveFileHandlers.unshift(options.retrieveFile); + } + + // Allow source maps to be found by methods other than reading the files + // directly from disk. + if (options.retrieveSourceMap) { + if (options.overrideRetrieveSourceMap) { + retrieveMapHandlers.length = 0; + } + + retrieveMapHandlers.unshift(options.retrieveSourceMap); + } + + // Support runtime transpilers that include inline source maps + if (options.hookRequire && !isInBrowser()) { + // Use dynamicRequire to avoid including in browser bundles + var Module = dynamicRequire(module, 'module'); + var $compile = Module.prototype._compile; + + if (!$compile.__sourceMapSupport) { + Module.prototype._compile = function(content, filename) { + fileContentsCache[filename] = content; + sourceMapCache[filename] = undefined; + return $compile.call(this, content, filename); + }; + + Module.prototype._compile.__sourceMapSupport = true; + } + } + + // Configure options + if (!emptyCacheBetweenOperations) { + emptyCacheBetweenOperations = 'emptyCacheBetweenOperations' in options ? + options.emptyCacheBetweenOperations : false; + } + + // Install the error reformatter + if (!errorFormatterInstalled) { + errorFormatterInstalled = true; + Error.prepareStackTrace = prepareStackTrace; + } + + if (!uncaughtShimInstalled) { + var installHandler = 'handleUncaughtExceptions' in options ? + options.handleUncaughtExceptions : true; + + // Do not override 'uncaughtException' with our own handler in Node.js + // Worker threads. Workers pass the error to the main thread as an event, + // rather than printing something to stderr and exiting. + try { + // We need to use `dynamicRequire` because `require` on it's own will be optimized by WebPack/Browserify. + var worker_threads = dynamicRequire(module, 'worker_threads'); + if (worker_threads.isMainThread === false) { + installHandler = false; + } + } catch(e) {} + + // Provide the option to not install the uncaught exception handler. This is + // to support other uncaught exception handlers (in test frameworks, for + // example). If this handler is not installed and there are no other uncaught + // exception handlers, uncaught exceptions will be caught by node's built-in + // exception handler and the process will still be terminated. However, the + // generated JavaScript code will be shown above the stack trace instead of + // the original source code. + if (installHandler && hasGlobalProcessEventEmitter()) { + uncaughtShimInstalled = true; + shimEmitUncaughtException(); + } + } +}; + +exports.resetRetrieveHandlers = function() { + retrieveFileHandlers.length = 0; + retrieveMapHandlers.length = 0; + + retrieveFileHandlers = originalRetrieveFileHandlers.slice(0); + retrieveMapHandlers = originalRetrieveMapHandlers.slice(0); + + retrieveSourceMap = handlerExec(retrieveMapHandlers); + retrieveFile = handlerExec(retrieveFileHandlers); +} |