coffeescript中的命名空间 [英] namespaces in coffeescript

问题描述

我想使用命名空间作为一个在javascript中使用关键字with，但CoffeeScript报告这是一个保留的关键字，拒绝编译是否有任何方式，我可以使用命名空间在cs？

特别是，我想动态包含一个CoffeeScript文件（可信源），比如为数据库模式加载模型，但是我想让包含的脚本访问本地命名空间。 / p>

---

编辑：

我想做什么。我设置了一个web框架，将目录树映射到基于express和mongoose的应用程序。例如，有一个子目录models包含一个文件'user.coffee'，代码如下：

  name：
 type：String 
 unique：on 
个人资料：[个人资料] 
  

$ b b

其中配置文件是位于名为 model 的本地对象中的类。当用户模型正在加载时，我想要它访问位于我的本地模型存储中的模型类。

我现在的工作是将 model.Profile 写入文件'user.coffee'。希望这很清楚我的意思。

---

第二编辑 b

以下是我使用与 c>

结合使用的方法：

user.coffee

  name：
 type：String 
 unique：on 
个人资料：[@profile] 
  

profile.coffee

  content：String 
  

以下是动态加载方式：

  for fs.readdirSync＃{base} / models
m = path.basename fm，'.coffee'
 schema [m] =（（） - > 
 new Schema coffee.eval（
 fs.readFileSync＃{base} / models /＃{fm}，'utf8'
） bare：on 
）.call模型
 mongoose.model m，schema [m] 
 model [m] = mongoose.model m 
  pre> 
 
 
似乎是我的一个好的解决方案。
解决方案
 fork的CoffeeScript支持和语法;请参阅 https://github.com/satyr/coco/wiki/additions 。但是，该语法只是将这个的值设置到块中的目标对象，而不是编译到有问题的和已弃用的和关键字。
 
 
 
假设你想在CoffeeScript中模仿Coco的和语法。你会这样做：
  withObj =（obj，func） - > func.call obj 
  
然后你可以写
  withObj =（obj，func） - > func.call obj 
 withObj annoyingly.lengthy.obj.reference， - > 
 @foo ='bar'
 @bar ='baz'
  
当然，在这种简单的情况下，最好使用一个效用函数像jQuery或Underscore的 extend ：
  _。extend annoyingly.lengthy.obj.reference，foo：'bar'，bar：'baz'
  
 
I'd like to use namespaces as one would in javascript by using the keyword "with", but CoffeeScript reports this as a reserved keyword and refuses to compile is there any way I could use namespaces in cs?

In particular, I want to include a CoffeeScript file dynamically (trusted source), like loading models for a database schema, but I want the included script to have access to a local namespace.



Edit:

Here's what I want to do. I am setting up a web framework that maps the directory tree to an application based on express and mongoose. For example, there's a sub-directory 'models' that contains a file 'user.coffee' with code like this inside:
name:
    type: String
    unique: on
profiles: [ Profile ]
Whereby Profile is a class that sits in a local object named model. When the user model is being loaded, I wanted it to access the model classes that sit in my local model store. 

My work-around for now was to write model.Profile into the file 'user.coffee'. Hope it is clear what I mean.



2nd Edit

Here's how I did it without using with:

user.coffee
name:
    type: String
    unique: on
profiles: [ @profile ]
profile.coffee
content: String
And here's how it's dynamically loaded:
for fm in fs.readdirSync "#{base}/models"
    m = path.basename fm, '.coffee'
    schema[m] = (()->
        new Schema coffee.eval (
            fs.readFileSync "#{base}/models/#{fm}", 'utf8'
        ), bare: on
    ).call model
    mongoose.model m, schema[m]
    model[m] = mongoose.model m
Seems an okay solution to me.
解决方案
The Coco fork of CoffeeScript supports a with syntax; see https://github.com/satyr/coco/wiki/additions. However, that syntax simply sets the value of this to the target object in a block, rather than compiling to the problematic and deprecated with keyword.

Let's say that you wanted to emulate Coco's with syntax in CoffeeScript. You'd do something like this:
withObj = (obj, func) -> func.call obj
Then you could write
withObj = (obj, func) -> func.call obj
withObj annoyingly.lengthy.obj.reference, ->
  @foo = 'bar'
  @bar = 'baz'
Of course, in such simple cases, it's better to use a utility function like jQuery or Underscore's extend:
_.extend annoyingly.lengthy.obj.reference, foo: 'bar', bar: 'baz'


                        
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