Views: GCC error when construct object with openArray from proc parameter

[gabbhack]

Example

{.experimental: "views".}

type
  Test = object
    tokens: openArray[string]

func init(Self: typedesc[Test], tokens: openArray[string]): Self = Self(tokens: tokens)

echo Test.init ["123"]

https://play.nim-lang.org/#ix=44yx

Current Output

C:\Users\Noname\nimcache\a_d\@ma.nim.c: In function 'init__a_9':
C:\Users\Noname\nimcache\a_d\@ma.nim.c:111:25: error: incompatible types when assigning to type 'tyOpenArray__eiGhHdDILTzcMBo9aGYM3ww' from type 'NimStringDesc **'
  111 |         result.tokens = tokens;
      |                         ^~~~~~
Error: execution of an external compiler program 'gcc.exe -c  -w -fmax-errors=3 -mno-ms-bitfields   -IC:\Users\Noname\.choosenim\toolchains\nim-1.6.6\lib -IC:\Users\Noname\Desktop -o C:\Users\Noname\nimcache\a_d\@ma.nim.c.o C:\Users\Noname\nimcache\a_d\@ma.nim.c' failed with exit code: 1

Expected Output

(tokens: ["123"])

Workaround

{.experimental: "views".}

type
  Test = object
    tokens: openArray[string]

func init(Self: typedesc[Test], tokens: openArray[string]): Self = 
  Self(tokens: tokens.toOpenArray(tokens.low, tokens.high))

echo Test.init ["123"]

$ nim -v
Nim Compiler Version 1.6.6 [Windows: amd64]
Compiled at 2022-05-05
Copyright (c) 2006-2021 by Andreas Rumpf

active boot switches: -d:release

[gabbhack]

I guess related:

{.experimental: "views".}

type
  Test = object
    tokens: openArray[int]

func init(Self: typedesc[Test], tokens: openArray[int]): Self = 
  Self(tokens: tokens.toOpenArray(tokens.low, tokens.high))

func main() =
  var test = Test.init [1,2,3]
  test.tokens = test.tokens[1..test.tokens.high]

main()

https://play.nim-lang.org/#ix=44Ae

Output:

/usercode/nimcache/@min.nim.c: In function 'main__in_9':
/usercode/nimcache/@min.nim.c:177:82: error: 'X5BX5D___in_80(test.tokens.Field0,  test.tokens.Field1,  T1_)' is a pointer; did you mean to use '->'?
  test.tokens.Field0 = X5BX5D___in_80(test.tokens.Field0, test.tokens.Field1, T1_).Field0; test.tokens.Field1 = X5BX5D___in_80(test.tokens.Field0, test.tokens.Field1, T1_).Field1;
                                                                                  ^
                                                                                  ->
/usercode/nimcache/@min.nim.c:177:171: error: 'X5BX5D___in_80(test.tokens.Field0,  test.tokens.Field1,  T1_)' is a pointer; did you mean to use '->'?
  test.tokens.Field0 = X5BX5D___in_80(test.tokens.Field0, test.tokens.Field1, T1_).Field0; test.tokens.Field1 = X5BX5D___in_80(test.tokens.Field0, test.tokens.Field1, T1_).Field1;

[hamidb80]

minimal example

proc test(a: openArray[int]) =
  echo (a, a.len)

test [1, 2, 3]

error:

 error: incompatible types when assigning to type 'tyOpenArray__0HB6wOMHiJYheBmdOv6sWw' {aka 'struct <anonymous>'} from type 'NI *' {aka 'long long int *'}
  T2_.Field0 = a;