# Pastebin B7qA2dhk
src/libponyc/type/viewpoint.c:123: viewpoint_type: Assertion `0` failed.

Backtrace:
  0   ponyc                               0x0000000109f6e982 ponyint_assert_fail + 162
  1   ponyc                               0x0000000109f599e7 viewpoint_type + 999
  2   ponyc                               0x0000000109f50730 reify_arrow + 256
  3   ponyc                               0x0000000109f4f979 reify_one + 249
  4   ponyc                               0x0000000109f4f8d0 reify_one + 80
  5   ponyc                               0x0000000109f4f8d0 reify_one + 80
  6   ponyc                               0x0000000109f4f8d0 reify_one + 80
  7   ponyc                               0x0000000109f4f90f reify_one + 143
  8   ponyc                               0x0000000109f4f8d0 reify_one + 80
  9   ponyc                               0x0000000109f4f8d0 reify_one + 80
  10  ponyc                               0x0000000109f4f8d0 reify_one + 80
  11  ponyc                               0x0000000109f4f8d0 reify_one + 80
  12  ponyc                               0x0000000109f4f8d0 reify_one + 80
  13  ponyc                               0x0000000109f4f8d0 reify_one + 80
  14  ponyc                               0x0000000109f4f8d0 reify_one + 80
  15  ponyc                               0x0000000109f4f8d0 reify_one + 80
  16  ponyc                               0x0000000109f4f8d0 reify_one + 80
  17  ponyc                               0x0000000109f4f8d0 reify_one + 80
  18  ponyc                               0x0000000109f4f8d0 reify_one + 80
  19  ponyc                               0x0000000109f4f8d0 reify_one + 80
  20  ponyc                               0x0000000109f4f8d0 reify_one + 80
  21  ponyc                               0x0000000109f4f8d0 reify_one + 80
  22  ponyc                               0x0000000109f4f8d0 reify_one + 80
  23  ponyc                               0x0000000109f4f8d0 reify_one + 80
  24  ponyc                               0x0000000109f4f7e8 reify + 312
  25  ponyc                               0x0000000109f4fd26 deferred_reify + 118
  26  ponyc                               0x0000000109eb0602 genfun_fun + 162
  27  ponyc                               0x0000000109eaf84e genfun_method_bodies + 526
  28  ponyc                               0x0000000109ee3c1c gentypes + 988
  29  ponyc                               0x0000000109ead266 genexe + 646
  30  ponyc                               0x0000000109e9b83c codegen + 300
  31  ponyc                               0x0000000109f17213 generate_passes + 51
  32  ponyc                               0x0000000109e60451 compile_package + 177
  33  ponyc                               0x0000000109e602e7 main + 423
  34  libdyld.dylib                       0x00007fffca223235 start + 1
  35  ???                                 0x0000000000000002 0x0 + 2
Abort