9e7eef9989
For parameterized derived type component initializers whose
expressions' types depend on parameter values, f18's current
scheme of analyzing the initialization expression once during
name resolution fails. For example,
type :: pdt(k)
integer, kind :: k
real :: component = real(0.0, kind=k)
end type
To handle such cases, it is necessary to re-analyze the parse
trees of these initialization expressions once for each distinct
initialization of the type.
This patch adds code to wipe an expression parse tree of its
typed expressions, and update those of its symbol table pointers
that reference type parameters, and then re-analyze that parse
tree to generate the properly typed component initializers.
Differential Revision: https://reviews.llvm.org/D123728
98 lines
3.9 KiB
Fortran
98 lines
3.9 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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