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<?php error_reporting(-1); interface Supertype {} class Superclass implements Supertype { public function fn(Superclass $x) {} } class Subclass extends Superclass { public function fn(Supertype $x) {} } new Subclass;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8t23V
function name:  (null)
number of ops:  9
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'error_reporting'
          1        SEND_VAL                                                 -1
          2        DO_ICALL                                                 
    6     3        DECLARE_CLASS                                            'superclass'
   11     4        DECLARE_CLASS                                            'subclass', 'superclass'
   16     5        NEW                                              $1      'Subclass'
          6        DO_FCALL                                      0          
          7        FREE                                                     $1
          8      > RETURN                                                   1

Class Supertype: [no user functions]
Class Superclass:
Function fn:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8t23V
function name:  fn
number of ops:  2
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   RECV                                             !0      
          1      > RETURN                                                   null

End of function fn

End of class Superclass.

Class Subclass:
Function fn:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8t23V
function name:  fn
number of ops:  2
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   13     0  E >   RECV                                             !0      
          1      > RETURN                                                   null

End of function fn

End of class Subclass.

Generated using Vulcan Logic Dumper, using php 8.0.0


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