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//===-- flang/runtime/non-tbp-dio.h -----------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// Defines a structure used to identify the non-type-bound defined I/O
// generic interfaces that are accessible in a particular scope. This
// table is used by some I/O APIs and is also part of the NAMELIST
// group table.
//
// A specific procedure for a particular derived type must appear in
// this table if it (a) is a dummy procedure or procedure pointer,
// (b) is part of the defined I/O generic definition in a scope other
// than the one that contains the derived type definition, or (c)
// is a null pointer signifying that some specific procedure from
// a containing scope has become inaccessible in a nested scope due
// to the use of "IMPORT, NONE" or "IMPORT, ONLY:".
#ifndef FORTRAN_RUNTIME_NON_TBP_DIO_H_
#define FORTRAN_RUNTIME_NON_TBP_DIO_H_
#include "flang/Common/Fortran.h"
#include <cstddef>
namespace Fortran::runtime::typeInfo {
class DerivedType;
} // namespace Fortran::runtime::typeInfo
namespace Fortran::runtime::io {
struct NonTbpDefinedIo {
const typeInfo::DerivedType &derivedType;
void (*subroutine)(); // null means no non-TBP defined I/O here
common::DefinedIo definedIo;
bool isDtvArgPolymorphic; // first dummy arg is CLASS(T)
};
struct NonTbpDefinedIoTable {
const NonTbpDefinedIo *Find(
const typeInfo::DerivedType &, common::DefinedIo) const;
std::size_t items{0};
const NonTbpDefinedIo *item{nullptr};
// True when the only procedures to be used are the type-bound special
// procedures in the type information tables and any non-null procedures
// in this table. When false, the entries in this table override whatever
// non-type-bound specific procedures might be in the type information,
// but the remaining specifics remain visible.
bool ignoreNonTbpEntries{false};
};
} // namespace Fortran::runtime::io
#endif // FORTRAN_RUNTIME_NON_TBP_DIO_H_
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