GitLab

bug: values in same function scope are not writable from matches, conditionals or loops. Additionally, one can not write into variables of higher scope. We need to clarify the syntax for this.

expect: It should be possible to write values in functions.

code: input

let x = 4
let y = 0
let z = 0
let a = 4
fn demo
  if test 1 == 1
    let x += 1
  end
  echo "x:" $x
  if test $x != 5
    echo "x broken"
  end

  for i in {0..=4}
    let z += 1
  end
  echo "z:" $z
  if test $z != 5
    echo "z broken"
  end

  match $a
    case 4; let a += 1
    case _; echo "FAIL"
  end
  echo "a:" $a
  if test $a != 5
    echo "a broken"
  end
  #echo $y
  #while test $y -lt  5
  #  let y += 1    # BROKEN: does not update y
  #  #echo $y
  #end
  #echo "y:" $y
  #if test $y != 5
  #  echo "y broken"
  #end
end
demo
echo $x
echo $y
echo $z
echo $a

actual: output

x: 4
x broken
z: 0
z broken
a: 4
a broken
4
0
0
4

expect: output

x: 5
y: 5
z: 5
a: 5
5
5
5
5

version: e033ca1c

interaction: none