compiler.out

[~/c/c/t/ppap] : nim c -r ppap.nim
Hint: used config file '/home/xena/.choosenim/toolchains/nim-0.17.0/config/nim.cfg' [Conf]
Hint: system [Processing]
Hint: ppap [Processing]
ppap.nim(8, 11) Error: identifier expected, but found 'p:🖋'

ppap.nim

type
  🖋 = object
  🍎 = object
  🍍 = object
  🍎🖋 = object
  🍍🖋 = object

proc `$`(p:🖋): string = "🖋"
proc `$`(a:🍎): string = "🍎"
proc `$`(p:🍍): string = "🍍"
proc `$`(ap:🍎🖋): string = "🍎🖋"
proc `$`(pp:🍍🖋): string = "🍍🖋"

echo 🖋(), 🍎(), " -> ", 🍎🖋()
echo 🖋(), 🍍(), " -> ", 🍍🖋()
echo 🍎🖋(), 🍍🖋()
echo 🖋(), 🍍(), 🍎(), 🖋()