Macros as variable declaration pragmas

[mratsim]

I want to do the equivalent to the following but as a macro:

`{.pragma: align64, codegenDecl: "$# $# __attribute__((aligned(64)))".}`

Macros as pragmas for procs work fine, is it also available for variables?
    
    
    macro align64*(x: untyped): untyped =
      # expectKind(x, nnkIdent)
      result = x
      when defined(js):
        return
      # codegenDecl code goes here
    
    
    # This works
    proc foo() {.align64.} =
      discard
    
    
    # How to get this to work
    let bar {.align64.} = [1, 2, 3, 4]