vlib/v/checker/tests/method_call_on_undefined_err.vv:6:10: error: undefined ident: `input`
    4 | fn foo() !string {
    5 |     // without next error does not occurs
    6 |     a, b := input.split_once('%') or { '', 'empty' }
      |             ~~~~~
    7 |     if b == '' {
    8 |         return error('')
vlib/v/checker/tests/method_call_on_undefined_err.vv:6:32: error: unexpected `or` block, the function `split_once` does not return an Option or a Result
    4 | fn foo() !string {
    5 |     // without next error does not occurs
    6 |     a, b := input.split_once('%') or { '', 'empty' }
      |                                   ~~~~~~~~~~~~~~~~~~
    7 |     if b == '' {
    8 |         return error('')
vlib/v/checker/tests/method_call_on_undefined_err.vv:6:7: error: assignment mismatch: 2 variables but `split_once()` returns 0 values
    4 | fn foo() !string {
    5 |     // without next error does not occurs
    6 |     a, b := input.split_once('%') or { '', 'empty' }
      |          ~~
    7 |     if b == '' {
    8 |         return error('')
vlib/v/checker/tests/method_call_on_undefined_err.vv:7:5: error: invalid variable `b`
    5 |     // without next error does not occurs
    6 |     a, b := input.split_once('%') or { '', 'empty' }
    7 |     if b == '' {
      |        ^
    8 |         return error('')
    9 |     }
vlib/v/checker/tests/method_call_on_undefined_err.vv:7:5: error: non-bool type `void` used as if condition
    5 |     // without next error does not occurs
    6 |     a, b := input.split_once('%') or { '', 'empty' }
    7 |     if b == '' {
      |        ~~~~~~~
    8 |         return error('')
    9 |     }
vlib/v/checker/tests/method_call_on_undefined_err.vv:10:9: error: invalid variable `a`
    8 |         return error('')
    9 |     }
   10 |     return a
      |            ^
   11 | }
   12 |
vlib/v/checker/tests/method_call_on_undefined_err.vv:10:2: error: `a` used as value
    8 |         return error('')
    9 |     }
   10 |     return a
      |     ~~~~~~~~
   11 | }
   12 |
vlib/v/checker/tests/method_call_on_undefined_err.vv:14:13: error: expected 0 arguments, but got 1
   12 | 
   13 | fn main() {
   14 |     res := foo('fe80::1234%ne0') or {
      |                ~~~~~~~~~~~~~~~~
   15 |         eprintln(err)
   16 |         exit(1)
Details: have (string)
         want ()