7ff9064b26
When an I/O statement's UNIT= specifier is a variable that is a function reference, parse tree rewriting may determine the wrong type of the result because generic resolution has not yet been performed. So move this bit of parse tree rewriting into I/O semantic checking so that the right handling (integer -> external file unit number, character pointer -> internal I/O) applies. Differential Revision: https://reviews.llvm.org/D135210
54 lines
1.6 KiB
Fortran
54 lines
1.6 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
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! Tests for UNIT=function()
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module m1
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integer, target :: itarget
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character(20), target :: ctarget
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logical, target :: ltarget
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interface gf
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module procedure :: intf, pintf, pchf, logf, plogf
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end interface
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contains
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integer function intf(n)
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integer(1), intent(in) :: n
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intf = n
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end function
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function pintf(n)
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integer(2), intent(in) :: n
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integer, pointer :: pintf
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pintf => itarget
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pintf = n
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end function
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function pchf(n)
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integer(4), intent(in) :: n
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character(:), pointer :: pchf
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pchf => ctarget
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end function
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logical function logf(n)
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integer(8), intent(in) :: n
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logf = .true.
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end function
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function plogf(n)
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integer(16), intent(in) :: n
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logical, pointer :: plf
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plf => ltarget
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end function
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subroutine test
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write(intf(6_1),"('hi')")
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write(pintf(6_2),"('hi')")
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write(pchf(123_4),"('hi')")
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write(gf(6_1),"('hi')")
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write(gf(6_2),"('hi')")
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write(gf(666_4),"('hi')")
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!ERROR: I/O unit must be a character variable or a scalar integer expression
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write(logf(666_8),"('hi')")
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!ERROR: I/O unit must be a character variable or a scalar integer expression
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write(plogf(666_16),"('hi')")
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!ERROR: I/O unit must be a character variable or a scalar integer expression
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write(gf(666_8),"('hi')")
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!ERROR: I/O unit must be a character variable or a scalar integer expression
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write(gf(666_16),"('hi')")
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!ERROR: I/O unit must be a character variable or a scalar integer expression
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write(null(),"('hi')")
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end subroutine
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end module
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