forked from OSchip/llvm-project
483 lines
11 KiB
Fortran
483 lines
11 KiB
Fortran
! RUN: %S/test_errors.sh %s %t %f18
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! 15.4.3.4.5 Restrictions on generic declarations
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! Specific procedures of generic interfaces must be distinguishable.
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module m1
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!ERROR: Generic 'g' may not have specific procedures 's2' and 's4' as their interfaces are not distinguishable
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interface g
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procedure s1
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procedure s2
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procedure s3
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procedure s4
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end interface
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contains
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subroutine s1(x)
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integer(8) x
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end
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subroutine s2(x)
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integer x
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end
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subroutine s3
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end
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subroutine s4(x)
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integer x
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end
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end
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module m2
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!ERROR: Generic 'g' may not have specific procedures 's1' and 's2' as their interfaces are not distinguishable
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interface g
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subroutine s1(x)
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end subroutine
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subroutine s2(x)
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real x
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end subroutine
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end interface
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end
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module m3
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!ERROR: Generic 'g' may not have specific procedures 'f1' and 'f2' as their interfaces are not distinguishable
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interface g
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integer function f1()
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end function
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real function f2()
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end function
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end interface
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end
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module m4
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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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interface g
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subroutine s1(x)
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import :: t1
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type(t1) :: x
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end
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subroutine s2(x)
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import :: t2
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type(t2) :: x
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end
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end interface
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end
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! These are all different ranks so they are distinguishable
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module m5
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interface g
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subroutine s1(x)
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real x
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end subroutine
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subroutine s2(x)
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real x(:)
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end subroutine
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subroutine s3(x)
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real x(:,:)
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end subroutine
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end interface
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end
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module m6
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use m5
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!ERROR: Generic 'g' may not have specific procedures 's1' and 's4' as their interfaces are not distinguishable
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interface g
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subroutine s4(x)
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end subroutine
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end interface
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end
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module m7
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use m5
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!ERROR: Generic 'g' may not have specific procedures 's1' and 's5' as their interfaces are not distinguishable
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!ERROR: Generic 'g' may not have specific procedures 's2' and 's5' as their interfaces are not distinguishable
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!ERROR: Generic 'g' may not have specific procedures 's3' and 's5' as their interfaces are not distinguishable
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interface g
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subroutine s5(x)
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real x(..)
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end subroutine
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end interface
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end
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! Two procedures that differ only by attributes are not distinguishable
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module m8
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!ERROR: Generic 'g' may not have specific procedures 's1' and 's2' as their interfaces are not distinguishable
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interface g
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pure subroutine s1(x)
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real, intent(in) :: x
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end subroutine
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subroutine s2(x)
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real, intent(in) :: x
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end subroutine
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end interface
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end
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module m9
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!ERROR: Generic 'g' may not have specific procedures 's1' and 's2' as their interfaces are not distinguishable
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interface g
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subroutine s1(x)
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real :: x(10)
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end subroutine
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subroutine s2(x)
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real :: x(100)
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end subroutine
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end interface
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end
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module m10
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!ERROR: Generic 'g' may not have specific procedures 's1' and 's2' as their interfaces are not distinguishable
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interface g
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subroutine s1(x)
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real :: x(10)
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end subroutine
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subroutine s2(x)
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real :: x(..)
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end subroutine
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end interface
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end
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program m11
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interface g1
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subroutine s1(x)
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real, pointer, intent(out) :: x
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end subroutine
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subroutine s2(x)
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real, allocatable :: x
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end subroutine
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end interface
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!ERROR: Generic 'g2' may not have specific procedures 's3' and 's4' as their interfaces are not distinguishable
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interface g2
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subroutine s3(x)
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real, pointer, intent(in) :: x
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end subroutine
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subroutine s4(x)
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real, allocatable :: x
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end subroutine
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end interface
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end
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module m12
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!ERROR: Generic 'g1' may not have specific procedures 's1' and 's2' as their interfaces are not distinguishable
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generic :: g1 => s1, s2 ! rank-1 and assumed-rank
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!ERROR: Generic 'g2' may not have specific procedures 's2' and 's3' as their interfaces are not distinguishable
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generic :: g2 => s2, s3 ! scalar and assumed-rank
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!ERROR: Generic 'g3' may not have specific procedures 's1' and 's4' as their interfaces are not distinguishable
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generic :: g3 => s1, s4 ! different shape, same rank
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contains
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subroutine s1(x)
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real :: x(10)
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end
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subroutine s2(x)
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real :: x(..)
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end
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subroutine s3(x)
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real :: x
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end
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subroutine s4(x)
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real :: x(100)
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end
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end
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! Procedures that are distinguishable by return type of a dummy argument
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module m13
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interface g1
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procedure s1
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procedure s2
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end interface
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interface g2
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procedure s1
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procedure s3
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end interface
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contains
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subroutine s1(x)
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procedure(real), pointer :: x
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end
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subroutine s2(x)
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procedure(integer), pointer :: x
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end
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subroutine s3(x)
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interface
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function x()
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procedure(real), pointer :: x
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end function
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end interface
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end
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end
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! Check user-defined operators
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module m14
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interface operator(*)
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module procedure f1
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module procedure f2
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end interface
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!ERROR: Generic 'operator(+)' may not have specific procedures 'f1' and 'f3' as their interfaces are not distinguishable
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interface operator(+)
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module procedure f1
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module procedure f3
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end interface
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interface operator(.foo.)
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module procedure f1
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module procedure f2
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end interface
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!ERROR: Generic operator '.bar.' may not have specific procedures 'f1' and 'f3' as their interfaces are not distinguishable
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interface operator(.bar.)
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module procedure f1
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module procedure f3
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end interface
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contains
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real function f1(x, y)
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real, intent(in) :: x
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logical, intent(in) :: y
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end
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integer function f2(x, y)
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integer, intent(in) :: x
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logical, intent(in) :: y
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end
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real function f3(x, y)
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real, value :: x
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logical, value :: y
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end
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end module
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! Types distinguished by kind (but not length) parameters
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module m15
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type :: t1(k1, l1)
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integer, kind :: k1 = 1
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integer, len :: l1 = 101
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end type
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type, extends(t1) :: t2(k2a, l2, k2b)
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integer, kind :: k2a = 2
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integer, kind :: k2b = 3
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integer, len :: l2 = 102
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end type
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type, extends(t2) :: t3(l3, k3)
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integer, kind :: k3 = 4
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integer, len :: l3 = 103
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end type
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interface g1
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procedure s1
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procedure s2
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end interface
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!ERROR: Generic 'g2' may not have specific procedures 's1' and 's3' as their interfaces are not distinguishable
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interface g2
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procedure s1
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procedure s3
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end interface
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!ERROR: Generic 'g3' may not have specific procedures 's4' and 's5' as their interfaces are not distinguishable
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interface g3
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procedure s4
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procedure s5
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end interface
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interface g4
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procedure s5
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procedure s6
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procedure s9
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end interface
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interface g5
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procedure s4
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procedure s7
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procedure s9
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end interface
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interface g6
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procedure s5
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procedure s8
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procedure s9
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end interface
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!ERROR: Generic 'g7' may not have specific procedures 's6' and 's7' as their interfaces are not distinguishable
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interface g7
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procedure s6
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procedure s7
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end interface
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!ERROR: Generic 'g8' may not have specific procedures 's6' and 's8' as their interfaces are not distinguishable
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interface g8
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procedure s6
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procedure s8
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end interface
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!ERROR: Generic 'g9' may not have specific procedures 's7' and 's8' as their interfaces are not distinguishable
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interface g9
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procedure s7
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procedure s8
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end interface
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contains
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subroutine s1(x)
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type(t1(1, 4)) :: x
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end
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subroutine s2(x)
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type(t1(2, 4)) :: x
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end
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subroutine s3(x)
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type(t1(l1=5)) :: x
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end
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subroutine s4(x)
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type(t3(1, 101, 2, 102, 3, 103, 4)) :: x
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end subroutine
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subroutine s5(x)
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type(t3) :: x
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end subroutine
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subroutine s6(x)
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type(t3(1, 99, k2b=2, k2a=3, l2=*, l3=97, k3=4)) :: x
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end subroutine
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subroutine s7(x)
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type(t3(k1=1, l1=99, k2a=3, k2b=2, k3=4)) :: x
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end subroutine
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subroutine s8(x)
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type(t3(1, :, 3, :, 2, :, 4)), allocatable :: x
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end subroutine
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subroutine s9(x)
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type(t3(k1=2)) :: x
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end subroutine
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end
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! Check that specifics for type-bound generics can be distinguished
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module m16
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type :: t
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contains
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procedure, nopass :: s1
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procedure, nopass :: s2
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procedure, nopass :: s3
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generic :: g1 => s1, s2
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!ERROR: Generic 'g2' may not have specific procedures 's1' and 's3' as their interfaces are not distinguishable
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generic :: g2 => s1, s3
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end type
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contains
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subroutine s1(x)
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real :: x
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end
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subroutine s2(x)
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integer :: x
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end
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subroutine s3(x)
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real :: x
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end
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end
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! Check polymorphic types
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module m17
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type :: t
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end type
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type, extends(t) :: t1
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end type
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type, extends(t) :: t2
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end type
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type, extends(t2) :: t2a
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end type
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interface g1
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procedure s1
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procedure s2
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end interface
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!ERROR: Generic 'g2' may not have specific procedures 's3' and 's4' as their interfaces are not distinguishable
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interface g2
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procedure s3
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procedure s4
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end interface
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interface g3
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procedure s1
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procedure s4
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end interface
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!ERROR: Generic 'g4' may not have specific procedures 's2' and 's3' as their interfaces are not distinguishable
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interface g4
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procedure s2
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procedure s3
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end interface
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!ERROR: Generic 'g5' may not have specific procedures 's2' and 's5' as their interfaces are not distinguishable
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interface g5
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procedure s2
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procedure s5
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end interface
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!ERROR: Generic 'g6' may not have specific procedures 's2' and 's6' as their interfaces are not distinguishable
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interface g6
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procedure s2
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procedure s6
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end interface
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contains
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subroutine s1(x)
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type(t) :: x
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end
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subroutine s2(x)
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type(t2a) :: x
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end
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subroutine s3(x)
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class(t) :: x
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end
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subroutine s4(x)
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class(t2) :: x
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end
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subroutine s5(x)
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class(*) :: x
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end
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subroutine s6(x)
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type(*) :: x
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end
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end
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! Test C1514 rule 3 -- distinguishable passed-object dummy arguments
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module m18
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type :: t(k)
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integer, kind :: k
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contains
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procedure, pass(x) :: p1 => s
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procedure, pass :: p2 => s
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procedure :: p3 => s
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procedure, pass(y) :: p4 => s
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generic :: g1 => p1, p4
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generic :: g2 => p2, p4
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generic :: g3 => p3, p4
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end type
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contains
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subroutine s(x, y)
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class(t(1)) :: x
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class(t(2)) :: y
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end
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end
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! C1511 - rules for operators
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module m19
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interface operator(.foo.)
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module procedure f1
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module procedure f2
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end interface
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!ERROR: Generic operator '.bar.' may not have specific procedures 'f2' and 'f3' as their interfaces are not distinguishable
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interface operator(.bar.)
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module procedure f2
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module procedure f3
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end interface
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contains
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integer function f1(i)
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integer :: i
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end
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integer function f2(i, j)
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integer :: i, j
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end
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integer function f3(i, j)
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integer :: i, j
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end
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end
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module m20
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interface operator(.not.)
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real function f(x)
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character(*),intent(in) :: x
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end function
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end interface
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interface operator(+)
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procedure f
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end interface
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end module
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subroutine s1()
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use m20
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interface operator(.not.)
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!ERROR: Procedure 'f' is already specified in generic 'operator(.not.)'
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procedure f
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end interface
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interface operator(+)
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!ERROR: Procedure 'f' is already specified in generic 'operator(+)'
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procedure f
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end interface
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end subroutine s1
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