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<?php $function = function () { yield 1; }; $wrapper = function () use ($function) { $generator = $function(); $generator->valid(); yield from $generator; $generator = $function(); // Comment out this line to get the correct result. $generator->valid(); yield from $generator; }; foreach ($wrapper() as $value) { echo $value; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 8, Position 2 = 11
Branch analysis from position: 8
2 jumps found. (Code = 78) Position 1 = 9, Position 2 = 11
Branch analysis from position: 9
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
filename:       /in/UfhNA
function name:  (null)
number of ops:  13
compiled vars:  !0 = $function, !1 = $wrapper, !2 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FUfhNA%3A3%240'
          1        ASSIGN                                                   !0, ~3
    7     2        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FUfhNA%3A7%241'
          3        BIND_LEXICAL                                             ~5, !0
          4        ASSIGN                                                   !1, ~5
   18     5        INIT_DYNAMIC_CALL                                        !1
          6        DO_FCALL                                      0  $7      
          7      > FE_RESET_R                                       $8      $7, ->11
          8    > > FE_FETCH_R                                               $8, !2, ->11
   19     9    >   ECHO                                                     !2
   18    10      > JMP                                                      ->8
         11    >   FE_FREE                                                  $8
   20    12      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FUfhNA%3A3%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/UfhNA
function name:  {closure}
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    4     1        YIELD                                                    1
    5     2      > GENERATOR_RETURN                                         

End of function %00%7Bclosure%7D%2Fin%2FUfhNA%3A3%240

Function %00%7Bclosure%7D%2Fin%2FUfhNA%3A7%241:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/UfhNA
function name:  {closure}
number of ops:  17
compiled vars:  !0 = $function, !1 = $generator
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   GENERATOR_CREATE                                         
          1        BIND_STATIC                                              !0
    8     2        INIT_DYNAMIC_CALL                                        !0
          3        DO_FCALL                                      0  $2      
          4        ASSIGN                                                   !1, $2
    9     5        INIT_METHOD_CALL                                         !1, 'valid'
          6        DO_FCALL                                      0          
   10     7        YIELD_FROM                                       ~5      !1
          8        FREE                                                     ~5
   12     9        INIT_DYNAMIC_CALL                                        !0
         10        DO_FCALL                                      0  $6      
         11        ASSIGN                                                   !1, $6
   14    12        INIT_METHOD_CALL                                         !1, 'valid'
         13        DO_FCALL                                      0          
   15    14        YIELD_FROM                                       ~9      !1
         15        FREE                                                     ~9
   16    16      > GENERATOR_RETURN                                         

End of function %00%7Bclosure%7D%2Fin%2FUfhNA%3A7%241

Generated using Vulcan Logic Dumper, using php 8.0.0


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