Any chances to make such syntax/semantics consistent? Can we allow multiple unwinds 1) per defer 2) dynamically per await (eg in await for-loops) 3) statically per await

Unwinds.iced

someFunc = (x,y,z, cb) ->
   await check x, defer err, res_x
   return cb err if err
   await check x, defer err, res_y
   return cb err if err
   await check x, defer err, res_z
   return cb err if err
   cb null, res_x + res_y + res_z


# PROPOSAL: "unwinding defers"
# use 
#
#       await f defer cb(err), res
#
# as short syntax for
#  
#       await f defer err, res
#       return cb err if err
#

someFunc2 = (x,y,z, cb) ->
   await check x, defer cb(err), res_x
   await check x, defer cb(err), res_y
   await check x, defer cb(err), res_z
   cb null, res_x + res_y + res_z





 

Here's the way I deal with this. Cheers.

{make_esc} = require 'iced-error'

someFunc3 = (x,y,z,cb) ->
  esc = make_esc cb, "Error Short Circuiter for someFunc3"
  await check x, esc defer res_x
  await check y, esc defer res_y
  await check z, esc defer res_z
  cb null, res_x + res_y + res_z

Thanks a lot! Just what I needed!