edf9eec265
Resolve the index name in a FORALL, DO, or DO CONCURRENT. Handle pointer-stmt. Add DeclareUnknownEntity() to declare an entity that is not yet know to be an object or procedure. This is used in the EntityDecl and PointerDecl cases. When an array element assignment is mistakenly parsed as a statement function, ensure the index names are resolved. Detect erroneous use-association with local name that matches the name of the containing subprogram. Cleanup: Eliminate GetVariableName() and CheckImplicitSymbol() in favor of using the Resolve* functions consistently. Add ResolveName() to do what CheckImplicitSymbol() used to do. Disable warnings about unresolved names for some categories of constructs that are not yet implemented: common blocks, namelist statements, etc. These will be turned back on when they are implemented. Original-commit: flang-compiler/f18@9a41bf37fd Reviewed-on: https://github.com/flang-compiler/f18/pull/210
45 lines
1.2 KiB
Fortran
45 lines
1.2 KiB
Fortran
! Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
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!
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! Licensed under the Apache License, Version 2.0 (the "License");
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! you may not use this file except in compliance with the License.
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! You may obtain a copy of the License at
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!
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! http://www.apache.org/licenses/LICENSE-2.0
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!
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! Unless required by applicable law or agreed to in writing, software
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! distributed under the License is distributed on an "AS IS" BASIS,
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! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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! See the License for the specific language governing permissions and
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! limitations under the License.
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module m1
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implicit none
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contains
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subroutine foo(x)
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real :: x
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end subroutine
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end module
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!Note: PGI, Intel, GNU, and NAG allow this; Sun does not
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module m2
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use m1
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implicit none
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!ERROR: 'foo' is already declared in this scoping unit
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interface foo
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module procedure s
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end interface
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contains
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subroutine s(i)
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integer :: i
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end subroutine
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end module
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subroutine foo
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!ERROR: Cannot use-associate 'foo'; it is already declared in this scope
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use m1
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end
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subroutine bar
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!ERROR: Cannot use-associate 'bar'; it is already declared in this scope
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use m1, bar => foo
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end
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