llvm-project/flang/test/Semantics/pointer01.f90
Peter Klausler 6f6af76b84 [flang] Catch bad usage of POINTER attribute
Most attributes apply to only object or only procedure entities,
and attempts to apply them to other kinds of symbol table entries
are caught in name resolution when ConvertToObjectEntity() or
ConvertToProcEntity() fails.  However, the POINTER attribute can
be applied to both, and name resolution can't perform that conversion
yet, and as a result we don't catch many kinds of silly errors.
Fix by ensuring that the symbol is of a type that could eventually
become an object or procedure entity if it is not one already.

Differential Revision: https://reviews.llvm.org/D140137
2022-12-16 09:04:54 -08:00

38 lines
993 B
Fortran

! RUN: %python %S/test_errors.py %s %flang_fc1
module m
real mobj
contains
subroutine msubr
end subroutine
end module
program main
use m
!PORTABILITY: Name 'main' declared in a main program should not have the same name as the main program
pointer main
!ERROR: Cannot change POINTER attribute on use-associated 'mobj'
pointer mobj
!ERROR: Cannot change POINTER attribute on use-associated 'msubr'
pointer msubr
!ERROR: 'inner' cannot have the POINTER attribute
pointer inner
real obj
!ERROR: 'ip' may not have both the POINTER and PARAMETER attributes
integer, parameter :: ip = 123
pointer ip
type dt; end type
!ERROR: 'dt' cannot have the POINTER attribute
pointer dt
interface generic
subroutine extsub
end subroutine
end interface
!ERROR: 'generic' cannot have the POINTER attribute
pointer generic
namelist /nml/ obj
!ERROR: 'nml' cannot have the POINTER attribute
pointer nml
contains
subroutine inner
end subroutine
end