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<?php function gen($x) { yield $x; return $x * 5; } function yf() { $x = yield from gen(1); echo "x is $x\n"; $y = yield from gen(2); echo "y is $y\n"; return yield from gen(42); } $g = yf(); foreach($g as $val) { var_dump($val); } echo "====================\n"; var_dump($g->getReturn());
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 9
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 9
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
filename:       /in/tHA6N
function name:  (null)
number of ops:  17
compiled vars:  !0 = $g, !1 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   16     0  E >   INIT_FCALL                                               'yf'
          1        DO_FCALL                                      0  $2      
          2        ASSIGN                                                   !0, $2
   17     3      > FE_RESET_R                                       $4      !0, ->9
          4    > > FE_FETCH_R                                               $4, !1, ->9
          5    >   INIT_FCALL                                               'var_dump'
          6        SEND_VAR                                                 !1
          7        DO_ICALL                                                 
          8      > JMP                                                      ->4
          9    >   FE_FREE                                                  $4
   18    10        ECHO                                                     '%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%0A'
   19    11        INIT_FCALL                                               'var_dump'
         12        INIT_METHOD_CALL                                         !0, 'getReturn'
         13        DO_FCALL                                      0  $6      
         14        SEND_VAR                                                 $6
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Function gen:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/tHA6N
function name:  gen
number of ops:  6
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
          1        GENERATOR_CREATE                                         
    4     2        YIELD                                                    !0
    5     3        MUL                                              ~2      !0, 5
          4      > GENERATOR_RETURN                                         
    6     5*     > GENERATOR_RETURN                                         

End of function gen

Function yf:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/tHA6N
function name:  yf
number of ops:  25
compiled vars:  !0 = $x, !1 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   GENERATOR_CREATE                                         
    9     1        INIT_FCALL                                               'gen'
          2        SEND_VAL                                                 1
          3        DO_FCALL                                      0  $2      
          4        YIELD_FROM                                       ~3      $2
          5        ASSIGN                                                   !0, ~3
   10     6        ROPE_INIT                                     3  ~6      'x+is+'
          7        ROPE_ADD                                      1  ~6      ~6, !0
          8        ROPE_END                                      2  ~5      ~6, '%0A'
          9        ECHO                                                     ~5
   11    10        INIT_FCALL                                               'gen'
         11        SEND_VAL                                                 2
         12        DO_FCALL                                      0  $8      
         13        YIELD_FROM                                       ~9      $8
         14        ASSIGN                                                   !1, ~9
   12    15        ROPE_INIT                                     3  ~12     'y+is+'
         16        ROPE_ADD                                      1  ~12     ~12, !1
         17        ROPE_END                                      2  ~11     ~12, '%0A'
         18        ECHO                                                     ~11
   13    19        INIT_FCALL                                               'gen'
         20        SEND_VAL                                                 42
         21        DO_FCALL                                      0  $14     
         22        YIELD_FROM                                       ~15     $14
         23      > GENERATOR_RETURN                                         
   14    24*     > GENERATOR_RETURN                                         

End of function yf

Generated using Vulcan Logic Dumper, using php 8.0.0


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173.18 ms | 1403 KiB | 19 Q