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<?php class ObjectMap { private $keyMap = []; private $valMap = []; private $keyVal = []; private $valKey = []; private function hash($object) { return spl_object_hash($object); } public function set($key, $val) { $this->keyMap[$keyHash = $this->hash($key)] = $key; $this->valMap[$valHash = $this->hash($val)] = $val; $this->keyVal[$keyHash] = $valHash; $this->valKey[$valHash] = $keyHash; } public function get($key) { if (isset($this->keyVal[$keyHash = $this->hash($key)], $this->valMap[$this->keyVal[$keyHash]])) { return $this->valMap[$this->keyVal[$keyHash]]; } return null; } public function getKey($val) { if (isset($this->valKey[$valHash = $this->hash($val)], $this->keyMap[$this->valKey[$valHash]])) { return $this->keyMap[$this->valKey[$valHash]]; } } } $objectMap = new ObjectMap(); $objectMap->set($a = (object) ['value' => 'a'], $b = (object) ['value' => 'b']); $objectMap->set($c = (object) ['value' => 'c'], $d = (object) ['value' => 'd']); $objectMap->set($e = (object) ['value' => 'e'], $f = (object) ['value' => 'f']); var_dump($objectMap->get($a)); var_dump($objectMap->get($c)); var_dump($objectMap->getKey($f));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/46auN
function name:  (null)
number of ops:  46
compiled vars:  !0 = $objectMap, !1 = $a, !2 = $b, !3 = $c, !4 = $d, !5 = $e, !6 = $f
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   44     0  E >   NEW                                              $7      'ObjectMap'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $7
   45     3        INIT_METHOD_CALL                                         !0, 'set'
          4        CAST                                          8  ~10     <array>
          5        ASSIGN                                           ~11     !1, ~10
          6        SEND_VAL_EX                                              ~11
          7        CAST                                          8  ~12     <array>
          8        ASSIGN                                           ~13     !2, ~12
          9        SEND_VAL_EX                                              ~13
         10        DO_FCALL                                      0          
   46    11        INIT_METHOD_CALL                                         !0, 'set'
         12        CAST                                          8  ~15     <array>
         13        ASSIGN                                           ~16     !3, ~15
         14        SEND_VAL_EX                                              ~16
         15        CAST                                          8  ~17     <array>
         16        ASSIGN                                           ~18     !4, ~17
         17        SEND_VAL_EX                                              ~18
         18        DO_FCALL                                      0          
   47    19        INIT_METHOD_CALL                                         !0, 'set'
         20        CAST                                          8  ~20     <array>
         21        ASSIGN                                           ~21     !5, ~20
         22        SEND_VAL_EX                                              ~21
         23        CAST                                          8  ~22     <array>
         24        ASSIGN                                           ~23     !6, ~22
         25        SEND_VAL_EX                                              ~23
         26        DO_FCALL                                      0          
   49    27        INIT_FCALL                                               'var_dump'
         28        INIT_METHOD_CALL                                         !0, 'get'
         29        SEND_VAR_EX                                              !1
         30        DO_FCALL                                      0  $25     
         31        SEND_VAR                                                 $25
         32        DO_ICALL                                                 
   50    33        INIT_FCALL                                               'var_dump'
         34        INIT_METHOD_CALL                                         !0, 'get'
         35        SEND_VAR_EX                                              !3
         36        DO_FCALL                                      0  $27     
         37        SEND_VAR                                                 $27
         38        DO_ICALL                                                 
   51    39        INIT_FCALL                                               'var_dump'
         40        INIT_METHOD_CALL                                         !0, 'getKey'
         41        SEND_VAR_EX                                              !6
         42        DO_FCALL                                      0  $29     
         43        SEND_VAR                                                 $29
         44        DO_ICALL                                                 
         45      > RETURN                                                   1

Class ObjectMap:
Function hash:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/46auN
function name:  hash
number of ops:  6
compiled vars:  !0 = $object
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   RECV                                             !0      
   16     1        INIT_FCALL                                               'spl_object_hash'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $1      
          4      > RETURN                                                   $1
   17     5*     > RETURN                                                   null

End of function hash

Function set:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/46auN
function name:  set
number of ops:  23
compiled vars:  !0 = $key, !1 = $val, !2 = $keyHash, !3 = $valHash
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   19     0  E >   RECV                                             !0      
          1        RECV                                             !1      
   21     2        INIT_METHOD_CALL                                         'hash'
          3        SEND_VAR                                                 !0
          4        DO_FCALL                                      0  $5      
          5        ASSIGN                                           ~6      !2, $5
          6        FETCH_OBJ_W                                      $4      'keyMap'
          7        ASSIGN_DIM                                               $4, ~6
          8        OP_DATA                                                  !0
   22     9        INIT_METHOD_CALL                                         'hash'
         10        SEND_VAR                                                 !1
         11        DO_FCALL                                      0  $9      
         12        ASSIGN                                           ~10     !3, $9
         13        FETCH_OBJ_W                                      $8      'valMap'
         14        ASSIGN_DIM                                               $8, ~10
         15        OP_DATA                                                  !1
   23    16        FETCH_OBJ_W                                      $12     'keyVal'
         17        ASSIGN_DIM                                               $12, !2
         18        OP_DATA                                                  !3
   24    19        FETCH_OBJ_W                                      $14     'valKey'
         20        ASSIGN_DIM                                               $14, !3
         21        OP_DATA                                                  !2
   25    22      > RETURN                                                   null

End of function set

Function get:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 8, Position 2 = 13
Branch analysis from position: 8
2 jumps found. (Code = 43) Position 1 = 14, Position 2 = 19
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 19
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
filename:       /in/46auN
function name:  get
number of ops:  21
compiled vars:  !0 = $key, !1 = $keyHash
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   27     0  E >   RECV                                             !0      
   29     1        INIT_METHOD_CALL                                         'hash'
          2        SEND_VAR                                                 !0
          3        DO_FCALL                                      0  $3      
          4        ASSIGN                                           ~4      !1, $3
          5        FETCH_OBJ_IS                                     ~2      'keyVal'
          6        ISSET_ISEMPTY_DIM_OBJ                         0  ~5      ~2, ~4
          7      > JMPZ_EX                                          ~5      ~5, ->13
          8    >   FETCH_OBJ_R                                      ~7      'keyVal'
          9        FETCH_DIM_R                                      ~8      ~7, !1
         10        FETCH_OBJ_IS                                     ~6      'valMap'
         11        ISSET_ISEMPTY_DIM_OBJ                         0  ~9      ~6, ~8
         12        BOOL                                             ~5      ~9
         13    > > JMPZ                                                     ~5, ->19
   30    14    >   FETCH_OBJ_R                                      ~11     'keyVal'
         15        FETCH_DIM_R                                      ~12     ~11, !1
         16        FETCH_OBJ_R                                      ~10     'valMap'
         17        FETCH_DIM_R                                      ~13     ~10, ~12
         18      > RETURN                                                   ~13
   32    19    > > RETURN                                                   null
   33    20*     > RETURN                                                   null

End of function get

Function getkey:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 8, Position 2 = 13
Branch analysis from position: 8
2 jumps found. (Code = 43) Position 1 = 14, Position 2 = 19
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 19
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 13
filename:       /in/46auN
function name:  getKey
number of ops:  20
compiled vars:  !0 = $val, !1 = $valHash
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   35     0  E >   RECV                                             !0      
   37     1        INIT_METHOD_CALL                                         'hash'
          2        SEND_VAR                                                 !0
          3        DO_FCALL                                      0  $3      
          4        ASSIGN                                           ~4      !1, $3
          5        FETCH_OBJ_IS                                     ~2      'valKey'
          6        ISSET_ISEMPTY_DIM_OBJ                         0  ~5      ~2, ~4
          7      > JMPZ_EX                                          ~5      ~5, ->13
          8    >   FETCH_OBJ_R                                      ~7      'valKey'
          9        FETCH_DIM_R                                      ~8      ~7, !1
         10        FETCH_OBJ_IS                                     ~6      'keyMap'
         11        ISSET_ISEMPTY_DIM_OBJ                         0  ~9      ~6, ~8
         12        BOOL                                             ~5      ~9
         13    > > JMPZ                                                     ~5, ->19
   38    14    >   FETCH_OBJ_R                                      ~11     'valKey'
         15        FETCH_DIM_R                                      ~12     ~11, !1
         16        FETCH_OBJ_R                                      ~10     'keyMap'
         17        FETCH_DIM_R                                      ~13     ~10, ~12
         18      > RETURN                                                   ~13
   40    19    > > RETURN                                                   null

End of function getkey

End of class ObjectMap.

Generated using Vulcan Logic Dumper, using php 8.0.0


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