1! { dg-do compile }
2!
3! Error checking for the SELECT TYPE statement
4!
5! Contributed by Janus Weil <janus@gcc.gnu.org>
6
7  type :: t1
8    integer :: i = 42
9    class(t1),pointer :: cp
10  end type
11
12  type, extends(t1) :: t2
13    integer :: j = 99
14  end type
15
16  type :: t3
17    real :: r
18  end type
19
20  type :: ts
21    sequence
22    integer :: k = 5
23  end type
24
25  class(t1), pointer :: a => NULL()
26  type(t1), target :: b
27  type(t2), target :: c
28  a => b
29  print *, a%i
30
31  type is (t1)  ! { dg-error "Unexpected TYPE IS statement" }
32
33  select type (3.5)  ! { dg-error "is not a named variable" }
34  select type (a%cp) ! { dg-error "is not a named variable" }
35  select type (b)    ! { dg-error "Selector shall be polymorphic" }
36  end select
37
38  select type (a)
39    print *,"hello world!"  ! { dg-error "Expected TYPE IS, CLASS IS or END SELECT" }
40  type is (t1)
41    print *,"a is TYPE(t1)"
42  type is (t2)
43    print *,"a is TYPE(t2)"
44  class is (ts)  ! { dg-error "must be extensible" }
45    print *,"a is TYPE(ts)"
46  type is (t3)   ! { dg-error "must be an extension of" }
47    print *,"a is TYPE(t3)"
48  type is (t4)   ! { dg-error "error in TYPE IS specification" }
49    print *,"a is TYPE(t3)"
50  class is (t1)
51    print *,"a is CLASS(t1)"
52  class is (t2) label  ! { dg-error "Syntax error" }
53    print *,"a is CLASS(t2)"
54  class default  ! { dg-error "cannot be followed by a second DEFAULT CASE" }
55    print *,"default"
56  class default  ! { dg-error "cannot be followed by a second DEFAULT CASE" }
57    print *,"default2"
58  end select
59
60label: select type (a)
61  type is (t1) label
62    print *,"a is TYPE(t1)"
63  type is (t2)  ! { dg-error "overlaps with CASE label" }
64    print *,"a is TYPE(t2)"
65  type is (t2)  ! { dg-error "overlaps with CASE label" }
66    print *,"a is still TYPE(t2)"
67  class is (t1) labe   ! { dg-error "Expected block name" }
68    print *,"a is CLASS(t1)"
69  end select label
70
71end
72