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<?php interface MyObjectInterface {} class MyObject implements MyObjectInterface {} class MyBaseClass { public function bar(MyObjectInterface $object): MyObjectInterface { return $object; } } interface YourObjectInterface extends MyObjectInterface {} class YourObject extends MyObject implements YourObjectInterface {} class YourSubclass extends MyBaseClass { public function bar(MyObjectInterface $object): YourObjectInterface { return $object; } } $subclass = new YourSubclass(); $object = new YourObject(); $subclass->bar($object);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eEuTg
function name:  (null)
number of ops:  14
compiled vars:  !0 = $subclass, !1 = $object
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   DECLARE_CLASS                                                'myobject'
   13     1        DECLARE_CLASS                                                'yourobjectinterface'
   15     2        DECLARE_CLASS                                                'yourobject', 'myobject'
   17     3        DECLARE_CLASS                                                'yoursubclass', 'mybaseclass'
   23     4        NEW                                                  $2      'YourSubclass'
          5        DO_FCALL                                          0          
          6        ASSIGN                                                       !0, $2
   25     7        NEW                                                  $5      'YourObject'
          8        DO_FCALL                                          0          
          9        ASSIGN                                                       !1, $5
   27    10        INIT_METHOD_CALL                                             !0, 'bar'
         11        SEND_VAR_EX                                                  !1
         12        DO_FCALL                                          0          
         13      > RETURN                                                       1

Class MyObjectInterface: [no user functions]
Class MyObject: [no user functions]
Class MyBaseClass:
Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eEuTg
function name:  bar
number of ops:  5
compiled vars:  !0 = $object
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    8     0  E >   RECV                                                 !0      
    9     1        VERIFY_RETURN_TYPE                                           !0
          2      > RETURN                                                       !0
   10     3*       VERIFY_RETURN_TYPE                                           
          4*     > RETURN                                                       null

End of function bar

End of class MyBaseClass.

Class YourObjectInterface: [no user functions]
Class YourObject: [no user functions]
Class YourSubclass:
Function bar:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/eEuTg
function name:  bar
number of ops:  5
compiled vars:  !0 = $object
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   18     0  E >   RECV                                                 !0      
   19     1        VERIFY_RETURN_TYPE                                           !0
          2      > RETURN                                                       !0
   20     3*       VERIFY_RETURN_TYPE                                           
          4*     > RETURN                                                       null

End of function bar

End of class YourSubclass.

Generated using Vulcan Logic Dumper, using php 8.5.0


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