034bab4cc8
f18 current ignores attempts to initialize (with =expr) things that are not objects, or allows meaningless initializations of things that have mistakenly been promoted to be objects. Fix by refusing to promote to objects names that have any attributes that cannot be applied to objects, and then catch data initializations of symbols that are not objects. Differential Revision: https://reviews.llvm.org/D142766
109 lines
4.3 KiB
Fortran
109 lines
4.3 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
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! Initializer error tests
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subroutine objectpointers(j)
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integer, intent(in) :: j
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real, allocatable, target, save :: x1
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real, codimension[*], target, save :: x2
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real, save :: x3
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real, target :: x4
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real, target, save :: x5(10)
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!ERROR: An initial data target may not be a reference to an ALLOCATABLE 'x1'
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real, pointer :: p1 => x1
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!ERROR: An initial data target may not be a reference to a coarray 'x2'
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real, pointer :: p2 => x2
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!ERROR: An initial data target may not be a reference to an object 'x3' that lacks the TARGET attribute
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real, pointer :: p3 => x3
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!ERROR: An initial data target may not be a reference to an object 'x4' that lacks the SAVE attribute
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real, pointer :: p4 => x4
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!ERROR: An initial data target must be a designator with constant subscripts
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real, pointer :: p5 => x5(j)
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!ERROR: Pointer has rank 0 but target has rank 1
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real, pointer :: p6 => x5
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!TODO: type incompatibility, non-deferred type parameter values, contiguity
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end subroutine
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subroutine dataobjects(j)
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integer, intent(in) :: j
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real, parameter :: x1(*) = [1., 2.]
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!ERROR: Implied-shape parameter 'x2' has rank 2 but its initializer has rank 1
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real, parameter :: x2(*,*) = [1., 2.]
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!ERROR: Named constant 'x3' array must have constant shape
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real, parameter :: x3(j) = [1., 2.]
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!ERROR: Shape of initialized object 'x4' must be constant
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real :: x4(j) = [1., 2.]
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!ERROR: Rank of initialized object is 2, but initialization expression has rank 1
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real :: x5(2,2) = [1., 2., 3., 4.]
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real :: x6(2,2) = 5.
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!ERROR: Rank of initialized object is 0, but initialization expression has rank 1
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real :: x7 = [1.]
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real :: x8(2,2) = reshape([1., 2., 3., 4.], [2, 2])
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!ERROR: Dimension 1 of initialized object has extent 3, but initialization expression has extent 2
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real :: x9(3) = [1., 2.]
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!ERROR: Dimension 1 of initialized object has extent 2, but initialization expression has extent 3
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real :: x10(2,3) = reshape([real::(k,k=1,6)], [3, 2])
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end subroutine
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subroutine components(n)
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integer, intent(in) :: n
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real, target, save :: a1(3)
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real, target :: a2
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real, save :: a3
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real, target, save :: a4
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type :: t1
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!ERROR: Dimension 1 of initialized object has extent 2, but initialization expression has extent 3
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real :: x1(2) = [1., 2., 3.]
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end type
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type :: t2(kind, len)
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integer, kind :: kind
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integer, len :: len
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!ERROR: Dimension 1 of initialized object has extent 2, but initialization expression has extent 3
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!ERROR: Dimension 1 of initialized object has extent 2, but initialization expression has extent 3
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real :: x1(2) = [1., 2., 3.]
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!ERROR: Dimension 1 of initialized object has extent 2, but initialization expression has extent 3
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real :: x2(kind) = [1., 2., 3.]
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!ERROR: Dimension 1 of initialized object has extent 2, but initialization expression has extent 3
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!ERROR: Shape of initialized object 'x3' must be constant
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real :: x3(len) = [1., 2., 3.]
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real, pointer :: p1(:) => a1
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!ERROR: An initial data target may not be a reference to an object 'a2' that lacks the SAVE attribute
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!ERROR: An initial data target may not be a reference to an object 'a2' that lacks the SAVE attribute
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real, pointer :: p2 => a2
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!ERROR: An initial data target may not be a reference to an object 'a3' that lacks the TARGET attribute
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!ERROR: An initial data target may not be a reference to an object 'a3' that lacks the TARGET attribute
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real, pointer :: p3 => a3
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!ERROR: Pointer has rank 0 but target has rank 1
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!ERROR: Pointer has rank 0 but target has rank 1
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real, pointer :: p4 => a1
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!ERROR: Pointer has rank 1 but target has rank 0
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!ERROR: Pointer has rank 1 but target has rank 0
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real, pointer :: p5(:) => a4
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end type
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type(t2(3,2)) :: o1
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type(t2(2,n)) :: o2
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type :: t3
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real :: x
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end type
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type(t3), save, target :: o3
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real, pointer :: p10 => o3%x
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associate (a1 => o3, a2 => o3%x)
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block
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real, pointer :: p11 => a1
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real, pointer :: p12 => a2
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end block
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end associate
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end subroutine
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subroutine notObjects
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!ERROR: 'x1' is not an object that can be initialized
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real, external :: x1 = 1.
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!ERROR: 'x2' is not a pointer but is initialized like one
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real, external :: x2 => sin
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!ERROR: 'x3' is not an object that can be initialized
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real, intrinsic :: x3 = 1.
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!ERROR: 'x4' is not a pointer but is initialized like one
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real, intrinsic :: x4 => cos
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end subroutine
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