Compile errors using code on the website

[teodor-pripoae]

I'm using the code listed here: http://eerolanguage.org/index.html

I'm getting the following compile error:

test.eero:2:13: error: use of undeclared identifier 'FileHelper'
  helper := FileHelper new  // declare variable "helper" via type inference
            ^
test.eero:4:12: error: NSArray must be available to use Objective-C array literals
  files := []  // empty array literal implies mutable
           ^
test.eero:7:7: error: use of undeclared identifier 'FileHandle'
  for FileHandle handle in files  // all objects are pointers, so no '*' needed
      ^
test.eero:11:3: error: expected expression
  return 0  // semicolons are optional almost everywhere
  ^
test.eero:11:3: error: expected expression
5 errors generated.

[pcperini]

you need to #import <Cocoa/Cocoa.h> and #import <Foundation/Foundation.h>, and the interface for FileHelper needs to come before your use of FileHelper objects (remember: eero, while fancy, is still ObjC. also note that you might be able to get around this by specifying class FileHelper before main(), but I haven't tested it).

update: class FileHelper doesn't work, because you actually call the class's methods in main(). to circumvent, put either the interface or the interface and implementation before main(), or put the interface and implementation in another file and #import "FileHelper.eero"

[claybridges]

Seems like a reasonable first thing to do to try to compile that code. Perhaps, to avoid many others repeating this problem, it might be useful to put a prominent link on that page to a compiling version (e.g. a gist).

[pcperini]

@claybridges Or simply rewrite the main-page code.

[andyarvanitis]

Agreed. I rearranged the code and omitted some details to keep the front page compact, but in hindsight it wasn't a great idea. Keeping this issue open until I either change the code or create a link to a compiling version.

[pcperini]

here you go: https://gist.github.com/3080412

also, i've written a python script, eeroc (executable, just drop it anywhere in your $PATH, like /usr/local/bin) that wraps around eero's clang installation for ease of use. with regards to the demo code, you don't have to #import anything if you use eeroc, simply: eeroc demo.eero -X --autoframework, where -X specifies to compile with Cocoa, Foundation, and AppKit, and --autoframework slips those #import statements in for compiling.

[andyarvanitis]

Updated with compilable version link (which also includes build/run instructions in the header comments). More samples to follow on github. Thanks guys!