Go - Idiomatic way to return (potentially shadowed) variables which have been defined as part of a separate multiple variable return -


normal status

While typing a function with the named return value, you typically use nude returns (Whether or not you have a different discussion). They can look like something: 

  func add (x, y int) (z int) {z = x + y return}   
  Return  is the same problem as  return z   
  
 though with the compressed snippet below ...  ( Module, ".md") {module, err: = readConvertMDFile (fileRoot + "htdocs / md /" +) 
  func load module (module-name, fileRoot string) (module [] byte) {if String.HasSuffix (moduleName, ".md" module_name) If mistake! = Zero {log. Printerline (fault)} return module} and {module = [] byte {} return}}   
  (this snippet runs fine, and this is my current solution to the problem)   
 ... The compiler will complain that   module is shaded   if instead of  return module  bus  Return . The reason for this is that the  module  was declared with  err  (second time), which has to be announced because it is still not present in this area.  
 Possible Solutions  
     
  1.  
     As I have done and clearly name the return variable name. Although this is not a terrible solution, I feel like there should be a way to organize the code so that it can run with a nude return. That this clear return leads to 'code odor'.   
  2.  
     Add a  var error error  in the beginning and use an assignment instead of the declaration. Maybe there is a better solution, but I would like to use the built-in assignment where possible for continuity and reducing unnecessary lines.   
  3.  
     Assign a temporary  moduleT  variable then  module = module T  ... it's just messy and redundant.    
     While I can get compiled results, I am hoping someone can recommend a clear, idiomatic way of writing it.   
     
     
     I always use your suggested solution 2 - An additional  var  Add statement.  
      func loadModule (module-name, file root string) (module [] byte) {var errors error if wire HasSuffix (moduleName, ".md") {module, err = readConvertMDFile (fileRoot + "htdocs / md /" + moduleName) If mistake! = Zero {log. Printline (mistake)} return} else {// There is no need for this module to be zero if it is not written on // If a blue piece is completely legal and lane () = 0 / Option 2 is also the most effective measure Remember that all the values ​​on the stack are returned, hence the named return value A stack is equivalent to the allocated variable.  
     If you do not have a naked return in Option 1 or Option 3, then there is a vested  module = module  or  module = module T  statement anyway .  
     Unfortunately, there is something like that which bites every go programmer after some time. I like the compiler very much so that the function does not allow all to hide inside because it is the source of the actual insect.

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