| 1 | module builtin_interface |
| 2 | use shell_types |
| 3 | implicit none |
| 4 | |
| 5 | ! Abstract interface for builtin execution |
| 6 | ! This allows executor to call builtins without directly depending on the builtins module |
| 7 | abstract interface |
| 8 | logical function is_builtin_func(cmd_name) result(is_builtin) |
| 9 | character(len=*), intent(in) :: cmd_name |
| 10 | end function is_builtin_func |
| 11 | |
| 12 | subroutine execute_builtin_sub(cmd, shell) |
| 13 | import :: command_t, shell_state_t |
| 14 | type(command_t), intent(in) :: cmd |
| 15 | type(shell_state_t), intent(inout) :: shell |
| 16 | end subroutine execute_builtin_sub |
| 17 | end interface |
| 18 | |
| 19 | ! Function pointers that will be set by the builtins module |
| 20 | procedure(is_builtin_func), pointer :: is_builtin_ptr => null() |
| 21 | procedure(execute_builtin_sub), pointer :: execute_builtin_ptr => null() |
| 22 | |
| 23 | contains |
| 24 | |
| 25 | ! Wrapper functions that executor will call |
| 26 | logical function is_builtin(cmd_name) result(res) |
| 27 | character(len=*), intent(in) :: cmd_name |
| 28 | if (associated(is_builtin_ptr)) then |
| 29 | res = is_builtin_ptr(cmd_name) |
| 30 | else |
| 31 | res = .false. |
| 32 | end if |
| 33 | end function is_builtin |
| 34 | |
| 35 | subroutine execute_builtin(cmd, shell) |
| 36 | type(command_t), intent(in) :: cmd |
| 37 | type(shell_state_t), intent(inout) :: shell |
| 38 | if (associated(execute_builtin_ptr)) then |
| 39 | call execute_builtin_ptr(cmd, shell) |
| 40 | else |
| 41 | shell%last_exit_status = 127 ! Command not found |
| 42 | end if |
| 43 | end subroutine execute_builtin |
| 44 | |
| 45 | end module builtin_interface |