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Commit6040974

Browse files
committed
- added Coffee-Script supportclosesjhnns#8 (jashkenas/coffeescript#2707)
- renamed internalRewire.js to simply rewire.js- moved all the stuff related to manipulating the module environment to moduleEnv.js
1 parent5fcb70f commit6040974

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6 files changed

+159
-90
lines changed

6 files changed

+159
-90
lines changed

‎lib/index.js

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
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varrewireModule=require("./internalRewire.js");
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varrewireModule=require("./rewire.js");
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/**
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* Adds a special setter and getter to the module located at filename. After the module has been rewired, you can

‎lib/internalRewire.js

Lines changed: 0 additions & 88 deletions
This file was deleted.

‎lib/moduleEnv.js

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"use strict";
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varModule=require("module"),
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fs=require("fs");
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// caching original wrapper
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varmoduleWrapper0=Module.wrapper[0],
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moduleWrapper1=Module.wrapper[1],
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originalExtensions={},
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nodeRequire,
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currentModule;
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functionload(targetModule){
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nodeRequire=targetModule.require;
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targetModule.require=requireProxy;
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currentModule=targetModule;
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registerExtensions();
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targetModule.load(targetModule.id);
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// This is only necessary if nothing has been required within the module
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reset();
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}
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functionreset(){
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Module.wrapper[0]=moduleWrapper0;
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Module.wrapper[1]=moduleWrapper1;
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restoreExtensions();
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}
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functioninject(prelude,appendix){
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Module.wrapper[0]=moduleWrapper0+prelude;
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Module.wrapper[1]=appendix+moduleWrapper1;
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}
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/**
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* Proxies the first require call in order to draw back all changes to the Module.wrapper.
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* Thus our changes don't influence other modules
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*
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*@param {!String} path
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*/
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functionrequireProxy(path){
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reset();
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currentModule.require=nodeRequire;
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returnnodeRequire.call(currentModule,path);// node's require only works when "this" points to the module
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}
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functionregisterExtensions(){
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originalExtensions.coffee=require.extensions[".coffee"];
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require.extensions[".coffee"]=coffeeExtension;
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}
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functionrestoreExtensions(){
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require.extensions[".coffee"]=originalExtensions.coffee;
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}
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functioncoffeeExtension(module,filename){
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varcoffee=require("coffee-script"),
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content=stripBOM(fs.readFileSync(filename,"utf8"));
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content=coffee.compile(content,{
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filename:filename,
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bare:true
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});
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module._compile(content,filename);
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}
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/**
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*@see https://github.com/joyent/node/blob/master/lib/module.js
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*/
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functionstripBOM(content){
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// Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
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// because the buffer-to-string conversion in `fs.readFileSync()`
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// translates it to FEFF, the UTF-16 BOM.
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if(content.charCodeAt(0)===0xFEFF){
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content=content.slice(1);
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}
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returncontent;
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}
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exports.load=load;
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exports.inject=inject;

‎lib/rewire.js

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varModule=require("module"),
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fs=require("fs"),
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__get__=require("./__get__.js"),
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__set__=require("./__set__.js"),
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getImportGlobalsSrc=require("./getImportGlobalsSrc.js"),
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detectStrictMode=require("./detectStrictMode.js"),
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moduleEnv=require("./moduleEnv.js");
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/**
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* Does actual rewiring the module. For further documentation @see index.js
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*/
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functioninternalRewire(parentModulePath,targetPath){
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vartargetModule,
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prelude,
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appendix,
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src;
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// Checking params
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if(typeoftargetPath!=="string"){
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thrownewTypeError("Filename must be a string");
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}
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// Resolve full filename relative to the parent module
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targetPath=Module._resolveFilename(targetPath,parentModulePath);
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// Special support for older node versions that returned an array on Module._resolveFilename
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//@see https://github.com/joyent/node/blob/865b077819a9271a29f982faaef99dc635b57fbc/lib/module.js#L319
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// TODO Remove this switch on the next major release
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if(Array.isArray(targetPath)){
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targetPath=targetPath[1];
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}
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// Create testModule as it would be created by require()
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targetModule=newModule(targetPath,parentModulePath);
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// We prepend a list of all globals declared with var so they can be overridden (without changing original globals)
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prelude=getImportGlobalsSrc();
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// We append our special setter and getter.
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appendix="module.exports.__set__ = "+__set__.toString()+"; ";
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appendix+="module.exports.__get__ = "+__get__.toString()+"; ";
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// Check if the module uses the strict mode.
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// If so we must ensure that "use strict"; stays at the beginning of the module.
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src=fs.readFileSync(targetPath,"utf8");
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if(detectStrictMode(src)===true){
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prelude=' "use strict"; '+prelude;
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}
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moduleEnv.inject(prelude,appendix);
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moduleEnv.load(targetModule);
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returntargetModule.exports;
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}
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module.exports=internalRewire;

‎test/internalRewire.test.jsrenamed to‎test/rewire.test.js

Lines changed: 17 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2,10 +2,26 @@
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// In case this module was in strict mode, all other modules called by this would also be strict.
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// But when testing if the strict mode is preserved, we must ensure that this module is NOT strict.
44

5-
describe("internalRewire",function(){
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varexpect=require("expect.js");
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varrewire;
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describe("rewire",function(){
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before(require("./testHelpers/createFakePackageJSON.js"));
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after(require("./testHelpers/removeFakePackageJSON.js"));
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it("should pass all shared test cases",function(){
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require("./testModules/sharedTestCases.js");
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});
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it("should also work with CoffeeScript",function(){
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varcoffeeModule;
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rewire=require("rewire");
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coffeeModule=rewire("./testModules/module.coffee");
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coffeeModule.__set__("fs",{
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readFileSync:function(){
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return"It works!";
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}
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});
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expect(coffeeModule.readFileSync()).to.be("It works!");
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});
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});

‎test/testModules/module.coffee

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fs=require"fs"
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exports.readFileSync= ()->fs.readFileSync()

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