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Presently, semantics doesn't check for discrepancies between known constant corresponding LEN type parameters between the declared type of an allocatable/pointer and either the type-spec or the SOURCE=/MOLD= on an ALLOCATE statement. This allows discrepancies between character lengths to go unchecked. Some compilers accept mismatched character lengths on SOURCE=/MOLD= and the allocate object, and that's useful and unambiguous feature that already works in f18 via truncation or padding. A portability warning should issue, however. But for mismatched character lengths between an allocate object and an explicit type-spec, and for any mismatch between derived type LEN type parameters, an error is appropriate. Differential Revision: https://reviews.llvm.org/D146583
104 lines
5.5 KiB
Fortran
104 lines
5.5 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
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! Check for semantic errors in ALLOCATE statements
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subroutine C936(param_ca_4_assumed, param_ta_4_assumed, param_ca_4_deferred)
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! If type-spec appears, the kind type parameter values of each
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! allocate-object shall be the same as the corresponding type
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! parameter values of the type-spec.
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real(kind=4), allocatable :: x1, x2(:)
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type WithParam(k1, l1)
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integer, kind :: k1=1
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integer, len :: l1=2
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end type
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type, extends(WithParam) :: WithParamExtent(k2, l2)
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integer, kind :: k2
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integer, len :: l2
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end type
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type, extends(WithParamExtent) :: WithParamExtent2(k3, l3)
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integer, kind :: k3 = 8
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integer, len :: l3
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end type
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type(WithParam(4, 2)), allocatable :: param_ta_4_2
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class(WithParam(4, 2)), pointer :: param_ca_4_2
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type(WithParam(4, *)), pointer :: param_ta_4_assumed
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class(WithParam(4, *)), allocatable :: param_ca_4_assumed
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type(WithParam(4, :)), allocatable :: param_ta_4_deferred
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class(WithParam(4, :)), pointer :: param_ca_4_deferred
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class(WithParam), allocatable :: param_defaulted
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type(WithParamExtent2(k1=4, l1=:, k2=5, l2=:, l3=8 )), pointer :: extended2
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class(*), pointer :: whatever
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character(:), allocatable :: deferredChar
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character(2), allocatable :: char2
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! Nominal test cases
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allocate(real(kind=4):: x1, x2(10))
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allocate(WithParam(4, 2):: param_ta_4_2, param_ca_4_2)
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allocate(WithParamExtent(4, 2, 8, 3):: param_ca_4_2)
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allocate(WithParam(4, *):: param_ta_4_assumed, param_ca_4_assumed)
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allocate(WithParamExtent(4, *, 8, 3):: param_ca_4_assumed)
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allocate(WithParam(4, 2):: param_ta_4_deferred, param_ca_4_deferred)
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allocate(WithParamExtent(4, 2, 8, 3):: param_ca_4_deferred)
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allocate(WithParamExtent2(k1=4, l1=5, k2=5, l2=6, l3=8 ):: extended2)
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allocate(WithParamExtent2(k1=4, l1=2, k2=5, l2=6, k3=5, l3=8 ):: param_ca_4_2)
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allocate(WithParam:: param_defaulted)
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allocate(WithParam(k1=1, l1=2):: param_defaulted)
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allocate(WithParam(k1=1):: param_defaulted)
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allocate(WithParamExtent2(k1=1, l1=2, k2=5, l2=6, k3=5, l3=8 ):: param_defaulted)
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allocate(WithParamExtent2(k1=1, l1=2, k2=5, l2=6, k3=5, l3=8 ):: whatever)
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allocate(character(len=1):: deferredChar)
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allocate(character(len=2):: char2)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(real(kind=8):: x1)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(real(kind=8):: x2(10))
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParam(8, 2):: param_ta_4_2)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParam(8, 2):: param_ca_4_2)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParamExtent(8, 2, 8, 3):: param_ca_4_2)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParam(8, *):: param_ta_4_assumed)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParam(8, *):: param_ca_4_assumed)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParamExtent(8, *, 8, 3):: param_ca_4_assumed)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParam(8, 2):: param_ta_4_deferred)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParam(8, 2):: param_ca_4_deferred)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParamExtent(8, 2, 8, 3):: param_ca_4_deferred)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParamExtent2(k1=5, l1=5, k2=5, l2=6, l3=8 ):: extended2)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParamExtent2(k1=5, l1=2, k2=5, l2=6, k3=5, l3=8 ):: param_ca_4_2)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParamExtent2(k1=4, l1=5, k2=5, l2=6, k3=5, l3=8 ):: extended2)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParam:: param_ca_4_2)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParam(k1=2, l1=2):: param_defaulted)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParam(k1=2):: param_defaulted)
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!ERROR: Type parameters of allocatable object in ALLOCATE must be the same as the corresponding ones in type-spec
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allocate(WithParamExtent2(k1=5, l1=2, k2=5, l2=6, k3=5, l3=8 ):: param_defaulted)
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!ERROR: Either type-spec or source-expr must appear in ALLOCATE when allocatable object has a deferred type parameters
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allocate(deferredChar)
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!ERROR: Character length of allocatable object in ALLOCATE must be the same as the type-spec
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allocate(character(len=1):: char2)
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end subroutine
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