cannot add custom pragma to templates

[hamidb80]

Example

import macros

macro myCustomPragma(s: untyped): untyped =
  discard

template myTmplt(): untyped  {.myCustomPragma.}=
  discard

Current Output

Error: cannot attach a custom pragma to 'myTmplt'

Expected Output

compiles successfully

Additional Information

• Nim compiler version: 1.4.8
• OS: windows 10

[kaushalmodi]

I can confirm this on Nim devel too.

From https://nim-lang.org/docs/manual.html#userminusdefined-pragmas-custom-annotations:

Custom pragmas can be used in all locations where ordinary pragmas can be specified. It is possible to annotate procs, templates, type and variable definitions, statements, etc.

But running below:

template myCustomPragma {.pragma.}

template myTmplt() {.myCustomPragma.} =
  discard

gives:

Error: cannot attach a custom pragma to 'myTmplt'

> nim -v
Nim Compiler Version 1.5.1 [Linux: amd64]
Compiled at 2021-06-07
Copyright (c) 2006-2021 by Andreas Rumpf

git hash: 5bad022d58e21f0da455fbd7d421cd26a2b5c812
active boot switches: -d:release

[timotheecour]

please check if duplicate of #15920, is so, close it

[hamidb80]

related to timotheecour#129

[Clyybber]

please check if duplicate of #15920, is so, close it

It isn't. template/macro pragma not working inside templates is different than not being able to attach a custom pragma to templates.

[hamidb80]

@Clyybber, it is the same as

related to timotheecour#129

[timotheecour]

related to timotheecour#129

that's not in nim repo though, it's my own issue tracker, so wouldn't count as duplicate