| 1 | //===-- flang/runtime/non-tbp-dio.h -----------------------------*- C++ -*-===// |
|---|
| 2 | // |
|---|
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
|---|
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
|---|
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
|---|
| 6 | // |
|---|
| 7 | //===----------------------------------------------------------------------===// |
|---|
| 8 | |
|---|
| 9 | // Defines a structure used to identify the non-type-bound defined I/O |
|---|
| 10 | // generic interfaces that are accessible in a particular scope. This |
|---|
| 11 | // table is used by some I/O APIs and is also part of the NAMELIST |
|---|
| 12 | // group table. |
|---|
| 13 | // |
|---|
| 14 | // A specific procedure for a particular derived type must appear in |
|---|
| 15 | // this table if it (a) is a dummy procedure or procedure pointer, |
|---|
| 16 | // (b) is part of the defined I/O generic definition in a scope other |
|---|
| 17 | // than the one that contains the derived type definition, or (c) |
|---|
| 18 | // is a null pointer signifying that some specific procedure from |
|---|
| 19 | // a containing scope has become inaccessible in a nested scope due |
|---|
| 20 | // to the use of "IMPORT, NONE" or "IMPORT, ONLY:". |
|---|
| 21 | |
|---|
| 22 | #ifndef FORTRAN_RUNTIME_NON_TBP_DIO_H_ |
|---|
| 23 | #define FORTRAN_RUNTIME_NON_TBP_DIO_H_ |
|---|
| 24 | |
|---|
| 25 | #include "flang/Common/Fortran.h" |
|---|
| 26 | #include <cstddef> |
|---|
| 27 | |
|---|
| 28 | namespace Fortran::runtime::typeInfo { |
|---|
| 29 | class DerivedType; |
|---|
| 30 | } // namespace Fortran::runtime::typeInfo |
|---|
| 31 | |
|---|
| 32 | namespace Fortran::runtime::io { |
|---|
| 33 | |
|---|
| 34 | struct NonTbpDefinedIo { |
|---|
| 35 | const typeInfo::DerivedType &derivedType; |
|---|
| 36 | void (*subroutine)(); // null means no non-TBP defined I/O here |
|---|
| 37 | common::DefinedIo definedIo; |
|---|
| 38 | bool isDtvArgPolymorphic; // first dummy arg is CLASS(T) |
|---|
| 39 | }; |
|---|
| 40 | |
|---|
| 41 | struct NonTbpDefinedIoTable { |
|---|
| 42 | RT_API_ATTRS const NonTbpDefinedIo *Find( |
|---|
| 43 | const typeInfo::DerivedType &, common::DefinedIo) const; |
|---|
| 44 | std::size_t items{0}; |
|---|
| 45 | const NonTbpDefinedIo *item{nullptr}; |
|---|
| 46 | // True when the only procedures to be used are the type-bound special |
|---|
| 47 | // procedures in the type information tables and any non-null procedures |
|---|
| 48 | // in this table. When false, the entries in this table override whatever |
|---|
| 49 | // non-type-bound specific procedures might be in the type information, |
|---|
| 50 | // but the remaining specifics remain visible. |
|---|
| 51 | bool ignoreNonTbpEntries{false}; |
|---|
| 52 | }; |
|---|
| 53 | |
|---|
| 54 | } // namespace Fortran::runtime::io |
|---|
| 55 | #endif // FORTRAN_RUNTIME_NON_TBP_DIO_H_ |
|---|
| 56 | |
|---|
