strangeness when macro is closure for proc

[shaunc]

The following code:

macro foo(a : static[string]) : typed =
  proc bar() : void =
    discard capitalize(a)
  bar()
discard foo("foo")

Generates:

parameter.nim(139, 12) template/generic instantiation from here 
lib/pure/strutils.nim(242, 21) Error: attempt to access a nil address

[Araq]

I think lambda-lifting doesn't consider macro properly.

[metagn]

Does not error anymore, with 1.2.0 My mistake, with 1.2.0, if you replace discard capitalize with echo capitalizeAscii it prints an empty line, so the string is still zeroed in memory

[ringabout]

Updated example:

import strutils

macro foo(a : static[string]) =
  proc bar() =
    echo capitalizeAscii(a)
  bar()

foo("foo")

[metagn]

Even simpler:

macro foo(a: static[string]) =
  proc bar() =
    echo a
  bar()

foo("foo")

[demotomohiro]

I found similar strange bug with static[int] type.

macro foo(a: static[int]) =
  echo a
  proc bar() =
    echo a
  bar()

foo(123)

Output:

0
0