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<?php function foo() { yield 1; } function bar($foo) { yield from $foo; yield 2; } $foo = foo(); $foo->next(); foreach (bar($foo) as $v) { var_dump($v); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 9, Position 2 = 14
Branch analysis from position: 9
2 jumps found. (Code = 78) Position 1 = 10, Position 2 = 14
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
filename:       /in/Xs08X
function name:  (null)
number of ops:  16
compiled vars:  !0 = $foo, !1 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   15     0  E >   INIT_FCALL                                               'foo'
          1        DO_FCALL                                      0  $2      
          2        ASSIGN                                                   !0, $2
   16     3        INIT_METHOD_CALL                                         !0, 'next'
          4        DO_FCALL                                      0          
   17     5        INIT_FCALL                                               'bar'
          6        SEND_VAR                                                 !0
          7        DO_FCALL                                      0  $5      
          8      > FE_RESET_R                                       $6      $5, ->14
          9    > > FE_FETCH_R                                               $6, !1, ->14
   18    10    >   INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !1
         12        DO_ICALL                                                 
   17    13      > JMP                                                      ->9
         14    >   FE_FREE                                                  $6
   19    15      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/Xs08X
function name:  foo
number of ops:  3
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   GENERATOR_CREATE                                         
    5     1        YIELD                                                    1
    6     2      > GENERATOR_RETURN                                         

End of function foo

Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 161) Position 1 = -2
filename:       /in/Xs08X
function name:  bar
number of ops:  6
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   RECV                                             !0      
          1        GENERATOR_CREATE                                         
   10     2        YIELD_FROM                                       ~1      !0
          3        FREE                                                     ~1
   12     4        YIELD                                                    2
   13     5      > GENERATOR_RETURN                                         

End of function bar

Generated using Vulcan Logic Dumper, using php 8.0.0


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