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<?php class A { public function foo(): self { return $this; } } class B extends A { public function foo(): self { return $this; } } (new B())->foo();
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ttop8
function name:  (null)
number of ops:  5
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   19     0  E >   NEW                                                  $0      'B'
          1        DO_FCALL                                          0          
          2        INIT_METHOD_CALL                                             $0, 'foo'
          3        DO_FCALL                                          0          
          4      > RETURN                                                       1

Class A:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ttop8
function name:  foo
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 foo

End of class A.

Class B:
Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ttop8
function name:  foo
number of ops:  5
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   15     0  E >   FETCH_THIS                                           ~0      
          1        VERIFY_RETURN_TYPE                                           ~0
          2      > RETURN                                                       ~0
   16     3*       VERIFY_RETURN_TYPE                                           
          4*     > RETURN                                                       null

End of function foo

End of class B.

Generated using Vulcan Logic Dumper, using php 8.5.0


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