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TheRock/compiler/amd-llvm/flang/test/Semantics/resolve44.f90
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

49 lines
2.1 KiB
Fortran

! RUN: %python %S/test_errors.py %s %flang_fc1
! Error tests for recursive use of derived types.
! C744 If neither the POINTER nor the ALLOCATABLE attribute is specified, the
! declaration-type-spec in the component-def-stmt shall specify an intrinsic
! type or a previously defined derived type.
program main
type :: recursive1
!ERROR: Recursive use of the derived type requires POINTER or ALLOCATABLE
type(recursive1) :: bad1
type(recursive1), pointer :: ok1
type(recursive1), allocatable :: ok2
!ERROR: Recursive use of the derived type requires POINTER or ALLOCATABLE
!ERROR: CLASS entity 'bad2' must be a dummy argument, allocatable, or object pointer
class(recursive1) :: bad2
class(recursive1), pointer :: ok3
class(recursive1), allocatable :: ok4
end type recursive1
type :: recursive2(kind,len)
integer, kind :: kind
integer, len :: len
!ERROR: Recursive use of the derived type requires POINTER or ALLOCATABLE
type(recursive2(kind,len)) :: bad1
type(recursive2(kind,len)), pointer :: ok1
type(recursive2(kind,len)), allocatable :: ok2
!ERROR: Recursive use of the derived type requires POINTER or ALLOCATABLE
!ERROR: CLASS entity 'bad2' must be a dummy argument, allocatable, or object pointer
class(recursive2(kind,len)) :: bad2
class(recursive2(kind,len)), pointer :: ok3
class(recursive2(kind,len)), allocatable :: ok4
end type recursive2
type :: recursive3(kind,len)
integer, kind :: kind = 1
integer, len :: len = 2
!ERROR: Recursive use of the derived type requires POINTER or ALLOCATABLE
type(recursive3) :: bad1
type(recursive3), pointer :: ok1
type(recursive3), allocatable :: ok2
!ERROR: Recursive use of the derived type requires POINTER or ALLOCATABLE
!ERROR: CLASS entity 'bad2' must be a dummy argument, allocatable, or object pointer
class(recursive3) :: bad2
class(recursive3), pointer :: ok3
class(recursive3), allocatable :: ok4
end type recursive3
!ERROR: Derived type 'recursive4' cannot extend itself
type, extends(recursive4) :: recursive4
end type recursive4
end program main