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! { dg-do compile }
!
! Error checking for the SELECT TYPE statement
!
! Contributed by Janus Weil <janus@gcc.gnu.org>
type :: t1
integer :: i = 42
class(t1),pointer :: cp
end type
type, extends(t1) :: t2
integer :: j = 99
end type
type :: t3
real :: r
end type
type :: ts
sequence
integer :: k = 5
end type
class(t1), pointer :: a => NULL()
type(t1), target :: b
type(t2), target :: c
a => b
print *, a%i
type is (t1) ! { dg-error "Unexpected TYPE IS statement" }
select type (3.5) ! { dg-error "is not a named variable" }
select type (a%cp) ! { dg-error "is not a named variable" }
select type (b) ! { dg-error "Selector shall be polymorphic" }
end select
select type (a)
print *,"hello world!" ! { dg-error "Expected TYPE IS, CLASS IS or END SELECT" }
type is (t1)
print *,"a is TYPE(t1)"
type is (t2)
print *,"a is TYPE(t2)"
class is (ts) ! { dg-error "must be extensible" }
print *,"a is TYPE(ts)"
type is (t3) ! { dg-error "must be an extension of" }
print *,"a is TYPE(t3)"
type is (t4) ! { dg-error "error in TYPE IS specification" }
print *,"a is TYPE(t3)"
class is (t1)
print *,"a is CLASS(t1)"
class is (t2) label ! { dg-error "Syntax error" }
print *,"a is CLASS(t2)"
class default ! { dg-error "cannot be followed by a second DEFAULT CASE" }
print *,"default"
class default ! { dg-error "cannot be followed by a second DEFAULT CASE" }
print *,"default2"
end select
label: select type (a)
type is (t1) label
print *,"a is TYPE(t1)"
type is (t2) ! { dg-error "overlaps with CASE label" }
print *,"a is TYPE(t2)"
type is (t2) ! { dg-error "overlaps with CASE label" }
print *,"a is still TYPE(t2)"
class is (t1) labe ! { dg-error "Expected block name" }
print *,"a is CLASS(t1)"
end select label
end
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