gokr

type
  Vehicle* = ref object of RootRef
    color*: string

type
  Car* = ref object of Vehicle
    make*: string

# This method ... is never called, it seems
# that system.`==` is preferred, why?

gokr

var a = [1,2,3,4,5,6]

iterator twopow[T](a: openarray[T]): T =
  var i = 1
  while i <= a.high:
    yield a[i-1]
    i = i * 2

for x in twopow(a): echo x

gokr

/* Generated by Nim Compiler v0.13.1 */
/*   (c) 2015 Andreas Rumpf */
/* The generated code is subject to the original license. */
#define NIM_INTBITS 32

#include "nimbase.h"
#include "wiring_digital.h"
#include "wiring.h"
N_NIMCALL(void, setup)(void);
N_NIMCALL(void, loop)(void);

gokr

The language constructs are explained using an extended BNF, in which (a)* means 0 or more a's,
a+ means 1 or more a's, and (a)? means an optional a. Parentheses may be used to group elements.
{} are used to describe character sets. Stuff I can't figure out is described inside {{ }}.

# Ints are parsed using Nim parseInt, floats using parseFloat and strings using unescape
int = ['+' | '-'] digit (['_'] digit)*
exponent = ('e' | 'E' ) ['+' | '-'] digit ( ['_'] digit )*
float = ['+' | '-'] digit (['_'] digit)* (('.' (['_'] digit)* [exponent]) | exponent)

# Inside the string we replace any \\ by \, any \' by ', any \" by " and any

gokr

home/gokr/nim/test/a.nim(1, 8) Error: cannot open 'c'
  import c
         ^
Traceback (most recent call last)
nim.nim(115)             nim
nim.nim(71)              handleCmdLine
main.nim(253)            mainCommand
main.nim(64)             commandCompileToC
modules.nim(227)         compileProject
modules.nim(172)         compileModule

gokr

Howto:

https://github.com/ttn-zh/ic880a-gateway/wiki


Get Raspbian Lite:

https://www.raspberrypi.org/downloads/raspbian/

Writing image to sdcard:

gokr

import osproc, threadpool

setMinPoolSize(200)
setMaxPoolSize(200)

proc perform() =
  echo "Starting"
  discard execCmdEx("sleep 25")
  echo "Done "

gokr

import httpclient, marshal, json

type
    User* = ref object
        login*: string
        id*: int
        avatar_url*: string
        gravatar_id*: string
        url*: string
        html_url*: string

gokr

2018-01-24 00:01:18 =CRASH REPORT====
  crasher:
    initial call: tls_connection:init/1
    pid: <0.413.0>
    registered_name: []
    exception error: bad argument: [{erlang,binary_to_list,[undefined],[]},{ssl_config,file_error,2,[{file,"ssl_config.erl"},{line,137}]},{ssl_config,init,2,[{file,"ssl_config.erl"},{line,36}]},{ssl_connection,ssl_config,3,[{file,"ssl_connection.erl"},{line,334}]},{tls_connection,init,1,[{file,"tls_connection.erl"},{line,186}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,247}]}]
    ancestors: [tls_connection_sup,ssl_connection_sup,ssl_sup,<0.165.0>]
    messages: [{'$gen_call',{<0.371.0>,#Ref<0.0.2.660>},{new_user,<0.368.0>}}]
    links: [<0.171.0>,#Port<0.9115>]
    dictionary: [{ssl_pem_cache,ssl_pem_cache},{ssl_manager,ssl_manager}]

gokr

class Harness extends TestHarness<TransformerChannel> with TestHarnessAuthMixin<TransformerChannel>, TestHarnessORMMixin {
  @override
  ManagedContext get context => channel.context;

  @override
  AuthServer get authServer => channel.authServer;

  Agent publicAgent;
  Agent adminAgent;