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<?php class X { function test(): self { return $this; } } class Y extends X { } $x = new Y; $y = $x->test();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TvJjC
function name:  (null)
number of ops:  7
compiled vars:  !0 = $x, !1 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   NEW                                              $2      'Y'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
   18     3        INIT_METHOD_CALL                                         !0, 'test'
          4        DO_FCALL                                      0  $5      
          5        ASSIGN                                                   !1, $5
          6      > RETURN                                                   1

Class X:
Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TvJjC
function name:  test
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   FETCH_THIS                                       ~0      
          1        VERIFY_RETURN_TYPE                                       ~0
          2      > RETURN                                                   ~0
    8     3*       VERIFY_RETURN_TYPE                                       
          4*     > RETURN                                                   null

End of function test

End of class X.

Class Y:
Function test:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TvJjC
function name:  test
number of ops:  5
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    7     0  E >   FETCH_THIS                                       ~0      
          1        VERIFY_RETURN_TYPE                                       ~0
          2      > RETURN                                                   ~0
    8     3*       VERIFY_RETURN_TYPE                                       
          4*     > RETURN                                                   null

End of function test

End of class Y.

Generated using Vulcan Logic Dumper, using php 8.0.0


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