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| author | Janus Weil <janus@gcc.gnu.org> | 2016-12-03 19:48:48 +0100 |
|---|---|---|
| committer | Janus Weil <janus@gcc.gnu.org> | 2016-12-03 19:48:48 +0100 |
| commit | 4ceda20498ec82d0fd24a2ab1e56c6c1e38b0174 (patch) | |
| tree | 82c3f00c21994444b743b447187631ac06291467 | |
| parent | 20fee4a901c0cf097df1f1ba00e226f1eb8e973c (diff) | |
| download | gcc-4ceda20498ec82d0fd24a2ab1e56c6c1e38b0174.zip gcc-4ceda20498ec82d0fd24a2ab1e56c6c1e38b0174.tar.gz gcc-4ceda20498ec82d0fd24a2ab1e56c6c1e38b0174.tar.bz2 | |
re PR fortran/43207 ([OOP] invalid (pointer) assignment to and from abstract non-polymorphic expressions)
2016-12-03 Janus Weil <janus@gcc.gnu.org>
PR fortran/43207
* primary.c (gfc_match_varspec): Reject nonpolymorphic references to
abstract types.
2016-12-03 Janus Weil <janus@gcc.gnu.org>
PR fortran/43207
* gfortran.dg/abstract_type_9.f90: New test case.
From-SVN: r243224
| -rw-r--r-- | gcc/fortran/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/fortran/primary.c | 10 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/abstract_type_9.f90 | 34 |
4 files changed, 54 insertions, 1 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog index eaae696..3489bc4 100644 --- a/gcc/fortran/ChangeLog +++ b/gcc/fortran/ChangeLog @@ -1,5 +1,11 @@ 2016-12-03 Janus Weil <janus@gcc.gnu.org> + PR fortran/43207 + * primary.c (gfc_match_varspec): Reject nonpolymorphic references to + abstract types. + +2016-12-03 Janus Weil <janus@gcc.gnu.org> + PR fortran/42188 * primary.c (gfc_match_rvalue): Add a new check that gives better error messages. diff --git a/gcc/fortran/primary.c b/gcc/fortran/primary.c index 2cdc9a4..f13b0f0 100644 --- a/gcc/fortran/primary.c +++ b/gcc/fortran/primary.c @@ -2222,7 +2222,15 @@ check_substring: } } - /* F2008, C727. */ + /* F08:C611. */ + if (primary->ts.type == BT_DERIVED && primary->ref + && primary->ts.u.derived && primary->ts.u.derived->attr.abstract) + { + gfc_error ("Nonpolymorphic reference to abstract type at %C"); + return MATCH_ERROR; + } + + /* F08:C727. */ if (primary->expr_type == EXPR_PPC && gfc_is_coindexed (primary)) { gfc_error ("Coindexed procedure-pointer component at %C"); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0d95973..84fc6fa 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2016-12-03 Janus Weil <janus@gcc.gnu.org> + PR fortran/43207 + * gfortran.dg/abstract_type_9.f90: New test case. + +2016-12-03 Janus Weil <janus@gcc.gnu.org> + PR fortran/42188 * gfortran.dg/derived_result_2.f90.f90: New test case. diff --git a/gcc/testsuite/gfortran.dg/abstract_type_9.f90 b/gcc/testsuite/gfortran.dg/abstract_type_9.f90 new file mode 100644 index 0000000..77d48ba --- /dev/null +++ b/gcc/testsuite/gfortran.dg/abstract_type_9.f90 @@ -0,0 +1,34 @@ +! { dg-do compile } +! +! PR 43207: [OOP] invalid (pointer) assignment to and from abstract non-polymorphic expressions +! +! Contributed by Tobias Burnus <burnus@gcc.gnu.org> + + implicit none + type, abstract :: parent + integer :: i + end type + type, extends(parent) :: child + class(parent), pointer :: comp + end type + + type(child), target :: c1 + class(child), allocatable :: c2 + class(parent), pointer :: cp + + c1%parent = c1%parent ! { dg-error "Nonpolymorphic reference to abstract type" } + c2%parent = c1%parent ! { dg-error "Nonpolymorphic reference to abstract type" } + + cp => c1%comp + cp => c1%parent ! { dg-error "Nonpolymorphic reference to abstract type" } + + call sub(c1%comp) + call sub(c1%parent) ! { dg-error "Nonpolymorphic reference to abstract type" } + +contains + + subroutine sub(arg) + class(parent) :: arg + end subroutine + +end |