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<?php class Dictionary { private $kMap; private $vMap; private $kvHashMap; private $vkHashMap; public function add($k, $v) { $kHash = spl_object_hash($k); $vHash = spl_object_hash($v); $this->kMap[$kHash] = $k; $this->vMap[$vHash] = $v; $this->kvHashMap[$kHash] = $vHash; $this->vkHashMap[$vHash] = $kHash; } public function get($k) { $kHash = spl_object_hash($k); if (isset($this->kvHashMap[$kHash])) { $vHash = $this->kvHashMap[$kHash]; if (isset($this->vMap[$vHash])) { return $this->vMap[$vHash]; } } return null; } public function getKey($v) { $vHash = spl_object_hash($v); if (isset($this->vkHashMap[$vHash])) { $kHash = $this->vkHashMap[$vHash]; if (isset($this->kMap[$kHash])) { return $this->kMap[$kHash]; } } return null; } } $dictionary = new Dictionary(); $k = (object) ['i' => 'am a key']; $v = (object) ['i' => 'am a value']; $dictionary->add($k, $v); var_dump($dictionary->get($k)); var_dump($dictionary->getKey($v));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/W8qch
function name:  (null)
number of ops:  24
compiled vars:  !0 = $dictionary, !1 = $k, !2 = $v
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   50     0  E >   NEW                                              $3      'Dictionary'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $3
   51     3        CAST                                          8  ~6      <array>
          4        ASSIGN                                                   !1, ~6
   52     5        CAST                                          8  ~8      <array>
          6        ASSIGN                                                   !2, ~8
   54     7        INIT_METHOD_CALL                                         !0, 'add'
          8        SEND_VAR_EX                                              !1
          9        SEND_VAR_EX                                              !2
         10        DO_FCALL                                      0          
   55    11        INIT_FCALL                                               'var_dump'
         12        INIT_METHOD_CALL                                         !0, 'get'
         13        SEND_VAR_EX                                              !1
         14        DO_FCALL                                      0  $11     
         15        SEND_VAR                                                 $11
         16        DO_ICALL                                                 
   56    17        INIT_FCALL                                               'var_dump'
         18        INIT_METHOD_CALL                                         !0, 'getKey'
         19        SEND_VAR_EX                                              !2
         20        DO_FCALL                                      0  $13     
         21        SEND_VAR                                                 $13
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

Class Dictionary:
Function add:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/W8qch
function name:  add
number of ops:  23
compiled vars:  !0 = $k, !1 = $v, !2 = $kHash, !3 = $vHash
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   16     2        INIT_FCALL                                               'spl_object_hash'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $4      
          5        ASSIGN                                                   !2, $4
   17     6        INIT_FCALL                                               'spl_object_hash'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                         $6      
          9        ASSIGN                                                   !3, $6
   18    10        FETCH_OBJ_W                                      $8      'kMap'
         11        ASSIGN_DIM                                               $8, !2
         12        OP_DATA                                                  !0
   19    13        FETCH_OBJ_W                                      $10     'vMap'
         14        ASSIGN_DIM                                               $10, !3
         15        OP_DATA                                                  !1
   20    16        FETCH_OBJ_W                                      $12     'kvHashMap'
         17        ASSIGN_DIM                                               $12, !2
         18        OP_DATA                                                  !3
   21    19        FETCH_OBJ_W                                      $14     'vkHashMap'
         20        ASSIGN_DIM                                               $14, !3
         21        OP_DATA                                                  !2
   22    22      > RETURN                                                   null

End of function add

Function get:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 17
Branch analysis from position: 8
2 jumps found. (Code = 43) Position 1 = 14, Position 2 = 17
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/W8qch
function name:  get
number of ops:  19
compiled vars:  !0 = $k, !1 = $kHash, !2 = $vHash
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   24     0  E >   RECV                                             !0      
   26     1        INIT_FCALL                                               'spl_object_hash'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $3      
          4        ASSIGN                                                   !1, $3
   27     5        FETCH_OBJ_IS                                     ~5      'kvHashMap'
          6        ISSET_ISEMPTY_DIM_OBJ                         0          ~5, !1
          7      > JMPZ                                                     ~6, ->17
   28     8    >   FETCH_OBJ_R                                      ~7      'kvHashMap'
          9        FETCH_DIM_R                                      ~8      ~7, !1
         10        ASSIGN                                                   !2, ~8
   29    11        FETCH_OBJ_IS                                     ~10     'vMap'
         12        ISSET_ISEMPTY_DIM_OBJ                         0          ~10, !2
         13      > JMPZ                                                     ~11, ->17
   30    14    >   FETCH_OBJ_R                                      ~12     'vMap'
         15        FETCH_DIM_R                                      ~13     ~12, !2
         16      > RETURN                                                   ~13
   33    17    > > RETURN                                                   null
   34    18*     > RETURN                                                   null

End of function get

Function getkey:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 17
Branch analysis from position: 8
2 jumps found. (Code = 43) Position 1 = 14, Position 2 = 17
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/W8qch
function name:  getKey
number of ops:  19
compiled vars:  !0 = $v, !1 = $vHash, !2 = $kHash
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   36     0  E >   RECV                                             !0      
   38     1        INIT_FCALL                                               'spl_object_hash'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $3      
          4        ASSIGN                                                   !1, $3
   39     5        FETCH_OBJ_IS                                     ~5      'vkHashMap'
          6        ISSET_ISEMPTY_DIM_OBJ                         0          ~5, !1
          7      > JMPZ                                                     ~6, ->17
   40     8    >   FETCH_OBJ_R                                      ~7      'vkHashMap'
          9        FETCH_DIM_R                                      ~8      ~7, !1
         10        ASSIGN                                                   !2, ~8
   41    11        FETCH_OBJ_IS                                     ~10     'kMap'
         12        ISSET_ISEMPTY_DIM_OBJ                         0          ~10, !2
         13      > JMPZ                                                     ~11, ->17
   42    14    >   FETCH_OBJ_R                                      ~12     'kMap'
         15        FETCH_DIM_R                                      ~13     ~12, !2
         16      > RETURN                                                   ~13
   45    17    > > RETURN                                                   null
   46    18*     > RETURN                                                   null

End of function getkey

End of class Dictionary.

Generated using Vulcan Logic Dumper, using php 8.0.0


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