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<?php /** * @template T * * @param class-string<T> $foo * * @return T */ function Foo(string $foo) : object { return new $foo; } var_dump(Foo('DateTime'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/SHnqX
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   14     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'foo'
          2        SEND_VAL                                                 'DateTime'
          3        DO_FCALL                                      0  $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
          6      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/SHnqX
function name:  Foo
number of ops:  8
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E >   RECV                                             !0      
   11     1        FETCH_CLASS                                   0  $1      !0
          2        NEW                                              $2      $1
          3        DO_FCALL                                      0          
          4        VERIFY_RETURN_TYPE                                       $2
          5      > RETURN                                                   $2
   12     6*       VERIFY_RETURN_TYPE                                       
          7*     > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


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