dc65c3f2ff
Derived types with SEQUENCE must have data components of sequence types; but this rule is relaxed as common an extension in the case of pointer components, whose targets' types are not really relevant to the implementation requirements of sequence types. Differential Revision: https://reviews.llvm.org/D117158
108 lines
2.6 KiB
Fortran
108 lines
2.6 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
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! C735 If EXTENDS appears, SEQUENCE shall not appear.
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! C738 The same private-or-sequence shall not appear more than once in a
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! given derived-type-def .
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!
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! C740 If SEQUENCE appears,
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! the type shall have at least one component,
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! each data component shall be declared to be of an intrinsic type or of a sequence type,
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! the derived type shall not have any type parameter,
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! and a type-bound-procedure-part shall not appear.
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subroutine s1
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integer :: t0
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!ERROR: 't0' is not a derived type
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type(t0) :: x
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type :: t1
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end type
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type, extends(t1) :: t2
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end type
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!ERROR: Derived type 't3' not found
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type, extends(t3) :: t4
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end type
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!ERROR: 't0' is not a derived type
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type, extends(t0) :: t5
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end type
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end subroutine
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module m1
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type t0
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end type
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end
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module m2
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type t
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end type
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end
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module m3
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type t0
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end type
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end
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subroutine s2
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use m1
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use m2, t0 => t
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use m3
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!ERROR: Reference to 't0' is ambiguous
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type, extends(t0) :: t1
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end type
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end subroutine
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module m4
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type :: t1
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private
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sequence
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private ! not a fatal error
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sequence ! not a fatal error
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real :: t1Field
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end type
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type :: t1a
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end type
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!ERROR: A sequence type may not have the EXTENDS attribute
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type, extends(t1a) :: t2
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sequence
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integer i
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end type
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type :: t3
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sequence
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integer i
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!ERROR: A sequence type may not have a CONTAINS statement
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contains
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end type
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!ERROR: A sequence type must have at least one component
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type :: emptyType
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sequence
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end type emptyType
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type :: plainType
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real :: plainField
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end type plainType
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type :: sequenceType
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sequence
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real :: sequenceField
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end type sequenceType
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type :: testType
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sequence
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!ERROR: A sequence type data component must either be of an intrinsic type or a derived sequence type
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class(*), allocatable :: typeStarField
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!ERROR: A sequence type data component must either be of an intrinsic type or a derived sequence type
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type(plainType) :: testField1
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!Pointers are ok as an extension
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type(plainType), pointer :: testField1p
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type(sequenceType) :: testField2
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procedure(real), pointer, nopass :: procField
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end type testType
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!ERROR: A sequence type may not have type parameters
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type :: paramType(param)
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integer, kind :: param
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sequence
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real :: paramField
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end type paramType
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contains
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subroutine s3
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type :: t1
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!ERROR: PRIVATE is only allowed in a derived type that is in a module
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private
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contains
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!ERROR: PRIVATE is only allowed in a derived type that is in a module
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private
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end type
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end
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end
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