5a14e4f231
This is the implementation of part of F2023 new feature US 03. Extracting tokens from a string, SPLIT intrinsic. It's section 16.9.196 SPLIT (STRING, SET, POS [, BACK]) of Fortran 2023 Standard. It's part of Flang issue [#178044](https://github.com/llvm/llvm-project/issues/178044). Note that I work with @kwyatt-ext on this issue. He implemented the other part, TOKENIZE. A test will be added into [llvm-test-suite](https://github.com/llvm/llvm-test-suite) later after this PR is merged.
99 lines
3.5 KiB
Fortran
99 lines
3.5 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
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! Check for semantic errors in split() subroutine calls
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! Based on Fortran 2023 standard requirements
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program test_split_errors
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implicit none
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character(20) :: string
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character(5) :: set
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integer :: pos
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logical :: back
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! Valid declarations for testing
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integer :: int_scalar
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real :: real_scalar
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character(10) :: string_array(5)
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character(5) :: set_array(5)
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character(len=20, kind=2) :: string_k2
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character(len=5, kind=2) :: set_k2
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character(len=20, kind=4) :: string_k4
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character(len=5, kind=4) :: set_k4
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!========================================================================
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! Valid calls (reference)
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!========================================================================
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call split(string, set, pos)
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call split(string, set, pos, back)
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call split("hello world", " ", pos)
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call split("hello world", " ", pos, .false.)
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! Valid calls with different character kinds
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call split(string_k2, set_k2, pos)
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call split(string_k2, set_k2, pos, back)
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call split(string_k4, set_k4, pos)
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call split(string_k4, set_k4, pos, back)
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!========================================================================
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! Wrong types for STRING argument
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!========================================================================
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!ERROR: Actual argument for 'string=' has bad type 'INTEGER(4)'
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call split(int_scalar, set, pos)
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!ERROR: Actual argument for 'string=' has bad type 'REAL(4)'
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call split(real_scalar, set, pos)
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!========================================================================
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! Wrong rank for STRING (must be scalar)
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!========================================================================
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!ERROR: 'string=' argument has unacceptable rank 1
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call split(string_array, set, pos)
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!========================================================================
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! Wrong types for SET argument
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!========================================================================
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!ERROR: Actual argument for 'set=' has bad type 'INTEGER(4)'
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call split(string, int_scalar, pos)
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!ERROR: Actual argument for 'set=' has bad type 'REAL(4)'
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call split(string, real_scalar, pos)
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!========================================================================
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! Wrong types for POS argument
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!========================================================================
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!ERROR: Actual argument for 'pos=' has bad type 'REAL(4)'
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call split(string, set, real_scalar)
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!========================================================================
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! Wrong types for BACK argument
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!========================================================================
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!ERROR: Actual argument for 'back=' has bad type 'INTEGER(4)'
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call split(string, set, pos, int_scalar)
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!========================================================================
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! Character kind mismatches between STRING and SET
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!========================================================================
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!ERROR: Actual argument for 'set=' has bad type or kind 'CHARACTER(KIND=1,LEN=5_8)'
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call split(string_k2, set, pos)
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!ERROR: Actual argument for 'set=' has bad type or kind 'CHARACTER(KIND=2,LEN=5_8)'
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call split(string, set_k2, pos)
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!ERROR: Actual argument for 'set=' has bad type or kind 'CHARACTER(KIND=1,LEN=5_8)'
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call split(string_k4, set, pos)
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!ERROR: Actual argument for 'set=' has bad type or kind 'CHARACTER(KIND=4,LEN=5_8)'
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call split(string, set_k4, pos)
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!ERROR: Actual argument for 'set=' has bad type or kind 'CHARACTER(KIND=4,LEN=5_8)'
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call split(string_k2, set_k4, pos)
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end program test_split_errors
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