xref: /llvm-project/flang/test/Semantics/resolve82.f90 (revision 7cc789bcfba8050eb20ecb8a24508d9a4711dba0)
1! RUN: %python %S/test_errors.py %s %flang_fc1
2! C815 An entity shall not be explicitly given any attribute more than once in
3! a scoping unit.
4!
5! R1512 procedure-declaration-stmt ->
6!         PROCEDURE ( [proc-interface] ) [[, proc-attr-spec]... ::]
7!         proc-decl-list
8!  proc-attr-spec values are:
9!    PUBLIC, PRIVATE, BIND(C), INTENT (intent-spec), OPTIONAL, POINTER,
10!    PROTECTED, SAVE
11module m
12  abstract interface
13    real function procFunc()
14    end function procFunc
15  end interface
16
17  !WARNING: Attribute 'PUBLIC' cannot be used more than once
18  procedure(procFunc), public, pointer, public :: proc1
19  !WARNING: Attribute 'PRIVATE' cannot be used more than once
20  procedure(procFunc), private, pointer, private :: proc2
21  !WARNING: Attribute 'BIND(C)' cannot be used more than once
22  !ERROR: An interface name with the BIND attribute must appear if the BIND attribute appears in a procedure declaration
23  procedure(procFunc), bind(c), pointer, bind(c) :: proc3
24  !WARNING: Attribute 'PROTECTED' cannot be used more than once
25  procedure(procFunc), protected, pointer, protected :: proc4
26  !ERROR: A PROTECTED entity must be a variable or pointer
27  external extsub
28  protected extsub
29  real x
30  !ERROR: A PROTECTED entity must be a variable or pointer
31  namelist /nml/ x
32  protected nml
33  !ERROR: A PROTECTED entity may not be in a common block
34  real y
35  common /blk/ y
36  protected y
37  logical,protected,external,pointer :: z
38
39contains
40
41    subroutine testProcDecl(arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11)
42      !WARNING: Attribute 'INTENT(IN)' cannot be used more than once
43      procedure(procFunc), intent(in), pointer, intent(in) :: arg4
44      !WARNING: Attribute 'INTENT(OUT)' cannot be used more than once
45      procedure(procFunc), intent(out), pointer, intent(out) :: arg5
46      !WARNING: Attribute 'INTENT(INOUT)' cannot be used more than once
47      procedure(procFunc), intent(inout), pointer, intent(inout) :: arg6
48      !ERROR: Attributes 'INTENT(INOUT)' and 'INTENT(OUT)' conflict with each other
49      procedure(procFunc), intent(inout), pointer, intent(out) :: arg7
50      !ERROR: Attributes 'INTENT(INOUT)' and 'INTENT(OUT)' conflict with each other
51      procedure(procFunc), intent(out), pointer, intent(inout) :: arg8
52      !WARNING: Attribute 'OPTIONAL' cannot be used more than once
53      procedure(procFunc), optional, pointer, optional :: arg9
54      !WARNING: Attribute 'POINTER' cannot be used more than once
55      procedure(procFunc), pointer, optional, pointer :: arg10
56      !WARNING: Attribute 'SAVE' cannot be used more than once
57      procedure(procFunc), save, pointer, save :: localProc
58      !ERROR: A PROTECTED entity must be in the specification part of a module
59      real x
60      protected x
61    end subroutine testProcDecl
62
63end module m
64
65subroutine subb()
66  !Ensure no spurious error from a benign UseError
67  use m, testProcDecl=>z
68end
69