walkDirRec Error

[TheAnonymous]

I tried to make a small webapp with Jester and something strange happens when I try to use walkDirRec in a GET request like this

import os, re, jester, asyncdispatch, htmlgen, asyncnet


routes:

  get "/":
    var html = ""
    html.add "<form action=\"upload\" method=\"post\"enctype=\"multipart/form-data\">"
    html.add "<input type=\"file\" name=\"file\"value=\"file\">"
    html.add "<input type=\"submit\" value=\"Submit\" name=\"submit\">"
    html.add "</form>"
    html.add "<h3>Folder</h3>"
    for file in walkDirRec("./"):
      html.add "<li><a href=\"" &file & "\">" & file & "</li>"
    resp(html)

runForever()

i get this error

/nimcache/posix.c:103:18: error: invalid application of 'sizeof' to an incomplete type 'DIR' (aka 'struct __dirstream')
NTI103214.size = sizeof(DIR);
                 ^     ~~~~~
/usr/include/dirent.h:127:16: note: forward declaration of 'struct __dirstream'
typedef struct __dirstream DIR;
               ^
1 error generated.
Error: execution of an external program failed

I first made a ticket at the jester projekt (dom96/jester#23) but they say that this is probably a compiler bug.
This happens with "Nim Compiler Version 0.10.2 (2014-12-31) [Linux: amd64]" as also with "Nim Compiler Version 0.10.3 (2015-02-13) [Linux: amd64]"
If I don't use jester and just make a simple program like this

import os, re
for f in walkDirRec("./"):
  echo f

it works perfectly fine.

Greetings Jakob

[TheAnonymous]

Hi seems like this bug needs to be reopen again but this time I get another error.
with this

import os, re, jester, asyncdispatch, htmlgen, asyncnet


routes:

  get "/":
    var html = ""
    html.add "<form action=\"upload\" method=\"post\"enctype=\"multipart/form-data\">"
    html.add "<input type=\"file\" name=\"file\"value=\"file\">"
    html.add "<input type=\"submit\" value=\"Submit\" name=\"submit\">"
    html.add "</form>"
    html.add "<h3>Folder</h3>"
    for file in walkDirRec("./"):
      html.add "<li><a href=\"" &file & "\">" & file & "</li>"
    resp(html)

runForever()

i get this error

clang -c  -w  -I/Users/jakob/Nim/lib -o /Users/jakob/Downloads/Repositorys/Uploader/nimcache/stdlib_posix.o /Users/jakob/Downloads/Repositorys/Uploader/nimcache/stdlib_posix.c
/Users/jakob/Downloads/Repositorys/Uploader/nimcache/stdlib_posix.c:134:20: error: no member named 'd_off' in 'dirent'
TMP380[3].offset = offsetof(struct dirent, d_off);
                   ^                       ~~~~~
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/6.0/include/stddef.h:87:24: note: 
      expanded from macro 'offsetof'
#define offsetof(t, d) __builtin_offsetof(t, d)
                       ^
1 error generated.
Error: execution of an external program failed

nim -v is
Nim Compiler Version 0.10.3 (2015-03-21) [MacOSX: amd64]
Copyright (c) 2006-2015 by Andreas Rumpf

active boot switches: -d:release

[TheAnonymous]

Im sorry but even in

Nim Compiler Version 0.10.3 (2015-03-25) [MacOSX: amd64]
Copyright (c) 2006-2015 by Andreas Rumpf

I get the same error with the example code from above.

[reactormonk]

Works for me on devel on Linux.

[TheAnonymous]

Yep thats right tried it on Linux right now and it works like charm.

[TheAnonymous]

Even if it works on Linux shouldn't this be reopened if it doesn't work on OSX ?

[reactormonk]

@TheAnonymous I don't know who has an OSX machine, so fixing it yourself might be fastest.