forked from OSchip/llvm-project
1098 lines
38 KiB
C++
1098 lines
38 KiB
C++
//===-- runtime/io-api.cpp --------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// Implements the I/O statement API
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#include "io-api.h"
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#include "descriptor-io.h"
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#include "descriptor.h"
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#include "edit-input.h"
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#include "edit-output.h"
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#include "environment.h"
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#include "format.h"
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#include "io-stmt.h"
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#include "memory.h"
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#include "terminator.h"
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#include "tools.h"
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#include "unit.h"
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#include <cstdlib>
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#include <memory>
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namespace Fortran::runtime::io {
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const char *InquiryKeywordHashDecode(
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char *buffer, std::size_t n, InquiryKeywordHash hash) {
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if (n < 1) {
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return nullptr;
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}
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char *p{buffer + n};
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*--p = '\0';
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while (hash > 1) {
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if (p < buffer) {
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return nullptr;
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}
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*--p = 'A' + (hash % 26);
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hash /= 26;
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}
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return hash == 1 ? p : nullptr;
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}
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template <Direction DIR>
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Cookie BeginInternalArrayListIO(const Descriptor &descriptor,
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void ** /*scratchArea*/, std::size_t /*scratchBytes*/,
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const char *sourceFile, int sourceLine) {
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Terminator oom{sourceFile, sourceLine};
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return &New<InternalListIoStatementState<DIR>>{oom}(
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descriptor, sourceFile, sourceLine)
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.release()
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->ioStatementState();
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}
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Cookie IONAME(BeginInternalArrayListOutput)(const Descriptor &descriptor,
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void **scratchArea, std::size_t scratchBytes, const char *sourceFile,
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int sourceLine) {
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return BeginInternalArrayListIO<Direction::Output>(
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descriptor, scratchArea, scratchBytes, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginInternalArrayListInput)(const Descriptor &descriptor,
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void **scratchArea, std::size_t scratchBytes, const char *sourceFile,
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int sourceLine) {
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return BeginInternalArrayListIO<Direction::Input>(
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descriptor, scratchArea, scratchBytes, sourceFile, sourceLine);
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}
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template <Direction DIR>
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Cookie BeginInternalArrayFormattedIO(const Descriptor &descriptor,
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const char *format, std::size_t formatLength, void ** /*scratchArea*/,
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std::size_t /*scratchBytes*/, const char *sourceFile, int sourceLine) {
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Terminator oom{sourceFile, sourceLine};
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return &New<InternalFormattedIoStatementState<DIR>>{oom}(
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descriptor, format, formatLength, sourceFile, sourceLine)
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.release()
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->ioStatementState();
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}
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Cookie IONAME(BeginInternalArrayFormattedOutput)(const Descriptor &descriptor,
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const char *format, std::size_t formatLength, void **scratchArea,
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std::size_t scratchBytes, const char *sourceFile, int sourceLine) {
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return BeginInternalArrayFormattedIO<Direction::Output>(descriptor, format,
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formatLength, scratchArea, scratchBytes, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginInternalArrayFormattedInput)(const Descriptor &descriptor,
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const char *format, std::size_t formatLength, void **scratchArea,
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std::size_t scratchBytes, const char *sourceFile, int sourceLine) {
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return BeginInternalArrayFormattedIO<Direction::Input>(descriptor, format,
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formatLength, scratchArea, scratchBytes, sourceFile, sourceLine);
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}
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template <Direction DIR>
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Cookie BeginInternalListIO(
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std::conditional_t<DIR == Direction::Input, const char, char> *internal,
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std::size_t internalLength, void ** /*scratchArea*/,
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std::size_t /*scratchBytes*/, const char *sourceFile, int sourceLine) {
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Terminator oom{sourceFile, sourceLine};
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return &New<InternalListIoStatementState<DIR>>{oom}(
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internal, internalLength, sourceFile, sourceLine)
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.release()
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->ioStatementState();
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}
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Cookie IONAME(BeginInternalListOutput)(char *internal,
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std::size_t internalLength, void **scratchArea, std::size_t scratchBytes,
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const char *sourceFile, int sourceLine) {
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return BeginInternalListIO<Direction::Output>(internal, internalLength,
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scratchArea, scratchBytes, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginInternalListInput)(const char *internal,
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std::size_t internalLength, void **scratchArea, std::size_t scratchBytes,
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const char *sourceFile, int sourceLine) {
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return BeginInternalListIO<Direction::Input>(internal, internalLength,
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scratchArea, scratchBytes, sourceFile, sourceLine);
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}
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template <Direction DIR>
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Cookie BeginInternalFormattedIO(
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std::conditional_t<DIR == Direction::Input, const char, char> *internal,
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std::size_t internalLength, const char *format, std::size_t formatLength,
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void ** /*scratchArea*/, std::size_t /*scratchBytes*/,
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const char *sourceFile, int sourceLine) {
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Terminator oom{sourceFile, sourceLine};
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return &New<InternalFormattedIoStatementState<DIR>>{oom}(
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internal, internalLength, format, formatLength, sourceFile, sourceLine)
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.release()
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->ioStatementState();
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}
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Cookie IONAME(BeginInternalFormattedOutput)(char *internal,
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std::size_t internalLength, const char *format, std::size_t formatLength,
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void **scratchArea, std::size_t scratchBytes, const char *sourceFile,
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int sourceLine) {
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return BeginInternalFormattedIO<Direction::Output>(internal, internalLength,
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format, formatLength, scratchArea, scratchBytes, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginInternalFormattedInput)(const char *internal,
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std::size_t internalLength, const char *format, std::size_t formatLength,
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void **scratchArea, std::size_t scratchBytes, const char *sourceFile,
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int sourceLine) {
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return BeginInternalFormattedIO<Direction::Input>(internal, internalLength,
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format, formatLength, scratchArea, scratchBytes, sourceFile, sourceLine);
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}
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template <Direction DIR>
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Cookie BeginExternalListIO(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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Terminator terminator{sourceFile, sourceLine};
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if (unitNumber == DefaultUnit) {
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unitNumber = DIR == Direction::Input ? 5 : 6;
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}
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ExternalFileUnit &unit{ExternalFileUnit::LookUpOrCreateAnonymous(
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unitNumber, DIR, false /*formatted*/, terminator)};
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if (unit.access == Access::Direct) {
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terminator.Crash("List-directed I/O attempted on direct access file");
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return nullptr;
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}
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if (unit.isUnformatted) {
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terminator.Crash("List-directed I/O attempted on unformatted file");
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return nullptr;
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}
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IoErrorHandler handler{terminator};
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unit.SetDirection(DIR, handler);
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IoStatementState &io{unit.BeginIoStatement<ExternalListIoStatementState<DIR>>(
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unit, sourceFile, sourceLine)};
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return &io;
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}
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Cookie IONAME(BeginExternalListOutput)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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return BeginExternalListIO<Direction::Output>(
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unitNumber, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginExternalListInput)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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return BeginExternalListIO<Direction::Input>(
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unitNumber, sourceFile, sourceLine);
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}
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template <Direction DIR>
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Cookie BeginExternalFormattedIO(const char *format, std::size_t formatLength,
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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Terminator terminator{sourceFile, sourceLine};
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if (unitNumber == DefaultUnit) {
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unitNumber = DIR == Direction::Input ? 5 : 6;
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}
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ExternalFileUnit &unit{ExternalFileUnit::LookUpOrCreateAnonymous(
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unitNumber, DIR, false /*formatted*/, terminator)};
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if (unit.isUnformatted) {
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terminator.Crash("Formatted I/O attempted on unformatted file");
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return nullptr;
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}
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IoErrorHandler handler{terminator};
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unit.SetDirection(DIR, handler);
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IoStatementState &io{
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unit.BeginIoStatement<ExternalFormattedIoStatementState<DIR>>(
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unit, format, formatLength, sourceFile, sourceLine)};
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return &io;
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}
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Cookie IONAME(BeginExternalFormattedOutput)(const char *format,
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std::size_t formatLength, ExternalUnit unitNumber, const char *sourceFile,
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int sourceLine) {
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return BeginExternalFormattedIO<Direction::Output>(
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format, formatLength, unitNumber, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginExternalFormattedInput)(const char *format,
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std::size_t formatLength, ExternalUnit unitNumber, const char *sourceFile,
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int sourceLine) {
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return BeginExternalFormattedIO<Direction::Input>(
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format, formatLength, unitNumber, sourceFile, sourceLine);
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}
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template <Direction DIR>
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Cookie BeginUnformattedIO(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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Terminator terminator{sourceFile, sourceLine};
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ExternalFileUnit &unit{ExternalFileUnit::LookUpOrCreateAnonymous(
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unitNumber, DIR, true /*unformatted*/, terminator)};
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if (!unit.isUnformatted) {
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terminator.Crash("Unformatted output attempted on formatted file");
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}
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IoStatementState &io{unit.BeginIoStatement<UnformattedIoStatementState<DIR>>(
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unit, sourceFile, sourceLine)};
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IoErrorHandler handler{terminator};
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unit.SetDirection(DIR, handler);
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if constexpr (DIR == Direction::Output) {
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if (unit.access == Access::Sequential && !unit.isFixedRecordLength) {
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// Create space for (sub)record header to be completed by
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// UnformattedIoStatementState<Direction::Output>::EndIoStatement()
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unit.recordLength.reset(); // in case of prior BACKSPACE
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io.Emit("\0\0\0\0", 4); // placeholder for record length header
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}
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}
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return &io;
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}
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Cookie IONAME(BeginUnformattedOutput)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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return BeginUnformattedIO<Direction::Output>(
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unitNumber, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginUnformattedInput)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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return BeginUnformattedIO<Direction::Input>(
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unitNumber, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginOpenUnit)( // OPEN(without NEWUNIT=)
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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bool wasExtant{false};
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Terminator terminator{sourceFile, sourceLine};
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ExternalFileUnit &unit{
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ExternalFileUnit::LookUpOrCreate(unitNumber, terminator, wasExtant)};
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return &unit.BeginIoStatement<OpenStatementState>(
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unit, wasExtant, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginOpenNewUnit)( // OPEN(NEWUNIT=j)
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const char *sourceFile, int sourceLine) {
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Terminator terminator{sourceFile, sourceLine};
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bool ignored{false};
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ExternalFileUnit &unit{ExternalFileUnit::LookUpOrCreate(
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ExternalFileUnit::NewUnit(terminator), terminator, ignored)};
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return &unit.BeginIoStatement<OpenStatementState>(
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unit, false /*was an existing file*/, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginClose)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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if (ExternalFileUnit * unit{ExternalFileUnit::LookUpForClose(unitNumber)}) {
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return &unit->BeginIoStatement<CloseStatementState>(
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*unit, sourceFile, sourceLine);
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} else {
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// CLOSE(UNIT=bad unit) is just a no-op
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Terminator oom{sourceFile, sourceLine};
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return &New<NoopCloseStatementState>{oom}(sourceFile, sourceLine)
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.release()
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->ioStatementState();
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}
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}
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Cookie IONAME(BeginFlush)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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Terminator terminator{sourceFile, sourceLine};
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ExternalFileUnit &unit{
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ExternalFileUnit::LookUpOrCrash(unitNumber, terminator)};
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return &unit.BeginIoStatement<ExternalMiscIoStatementState>(
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unit, ExternalMiscIoStatementState::Flush, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginBackspace)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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Terminator terminator{sourceFile, sourceLine};
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ExternalFileUnit &unit{
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ExternalFileUnit::LookUpOrCrash(unitNumber, terminator)};
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return &unit.BeginIoStatement<ExternalMiscIoStatementState>(
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unit, ExternalMiscIoStatementState::Backspace, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginEndfile)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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Terminator terminator{sourceFile, sourceLine};
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ExternalFileUnit &unit{ExternalFileUnit::LookUpOrCreateAnonymous(
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unitNumber, Direction::Output, true /*formatted*/, terminator)};
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return &unit.BeginIoStatement<ExternalMiscIoStatementState>(
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unit, ExternalMiscIoStatementState::Endfile, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginRewind)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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Terminator terminator{sourceFile, sourceLine};
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ExternalFileUnit &unit{ExternalFileUnit::LookUpOrCreateAnonymous(
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unitNumber, Direction::Input, true /*formatted*/, terminator)};
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return &unit.BeginIoStatement<ExternalMiscIoStatementState>(
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unit, ExternalMiscIoStatementState::Rewind, sourceFile, sourceLine);
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}
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Cookie IONAME(BeginInquireUnit)(
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ExternalUnit unitNumber, const char *sourceFile, int sourceLine) {
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if (ExternalFileUnit * unit{ExternalFileUnit::LookUp(unitNumber)}) {
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return &unit->BeginIoStatement<InquireUnitState>(
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*unit, sourceFile, sourceLine);
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} else {
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// INQUIRE(UNIT=unrecognized unit)
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Terminator oom{sourceFile, sourceLine};
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return &New<InquireNoUnitState>{oom}(sourceFile, sourceLine)
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.release()
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->ioStatementState();
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}
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}
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Cookie IONAME(BeginInquireFile)(const char *path, std::size_t pathLength,
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const char *sourceFile, int sourceLine) {
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Terminator oom{sourceFile, sourceLine};
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auto trimmed{
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SaveDefaultCharacter(path, TrimTrailingSpaces(path, pathLength), oom)};
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if (ExternalFileUnit * unit{ExternalFileUnit::LookUp(trimmed.get())}) {
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// INQUIRE(FILE=) to a connected unit
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return &unit->BeginIoStatement<InquireUnitState>(
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*unit, sourceFile, sourceLine);
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} else {
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return &New<InquireUnconnectedFileState>{oom}(
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std::move(trimmed), sourceFile, sourceLine)
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.release()
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->ioStatementState();
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}
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}
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Cookie IONAME(BeginInquireIoLength)(const char *sourceFile, int sourceLine) {
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Terminator oom{sourceFile, sourceLine};
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return &New<InquireIOLengthState>{oom}(sourceFile, sourceLine)
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.release()
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->ioStatementState();
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}
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// Control list items
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void IONAME(EnableHandlers)(Cookie cookie, bool hasIoStat, bool hasErr,
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bool hasEnd, bool hasEor, bool hasIoMsg) {
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IoErrorHandler &handler{cookie->GetIoErrorHandler()};
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if (hasIoStat) {
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handler.HasIoStat();
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}
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if (hasErr) {
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handler.HasErrLabel();
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}
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if (hasEnd) {
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handler.HasEndLabel();
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}
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if (hasEor) {
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handler.HasEorLabel();
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}
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if (hasIoMsg) {
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handler.HasIoMsg();
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}
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}
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static bool YesOrNo(const char *keyword, std::size_t length, const char *what,
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IoErrorHandler &handler) {
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static const char *keywords[]{"YES", "NO", nullptr};
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switch (IdentifyValue(keyword, length, keywords)) {
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case 0:
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return true;
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case 1:
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return false;
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default:
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handler.SignalError(IostatErrorInKeyword, "Invalid %s='%.*s'", what,
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static_cast<int>(length), keyword);
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return false;
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}
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}
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bool IONAME(SetAdvance)(
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Cookie cookie, const char *keyword, std::size_t length) {
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IoStatementState &io{*cookie};
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ConnectionState &connection{io.GetConnectionState()};
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connection.nonAdvancing =
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!YesOrNo(keyword, length, "ADVANCE", io.GetIoErrorHandler());
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if (connection.nonAdvancing && connection.access == Access::Direct) {
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io.GetIoErrorHandler().SignalError(
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"Non-advancing I/O attempted on direct access file");
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}
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return true;
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}
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bool IONAME(SetBlank)(Cookie cookie, const char *keyword, std::size_t length) {
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IoStatementState &io{*cookie};
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ConnectionState &connection{io.GetConnectionState()};
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static const char *keywords[]{"NULL", "ZERO", nullptr};
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switch (IdentifyValue(keyword, length, keywords)) {
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case 0:
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connection.modes.editingFlags &= ~blankZero;
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return true;
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case 1:
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connection.modes.editingFlags |= blankZero;
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return true;
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default:
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io.GetIoErrorHandler().SignalError(IostatErrorInKeyword,
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"Invalid BLANK='%.*s'", static_cast<int>(length), keyword);
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return false;
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}
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}
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bool IONAME(SetDecimal)(
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Cookie cookie, const char *keyword, std::size_t length) {
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IoStatementState &io{*cookie};
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ConnectionState &connection{io.GetConnectionState()};
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static const char *keywords[]{"COMMA", "POINT", nullptr};
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switch (IdentifyValue(keyword, length, keywords)) {
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case 0:
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connection.modes.editingFlags |= decimalComma;
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return true;
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case 1:
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connection.modes.editingFlags &= ~decimalComma;
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return true;
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default:
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io.GetIoErrorHandler().SignalError(IostatErrorInKeyword,
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"Invalid DECIMAL='%.*s'", static_cast<int>(length), keyword);
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return false;
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}
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}
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bool IONAME(SetDelim)(Cookie cookie, const char *keyword, std::size_t length) {
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IoStatementState &io{*cookie};
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ConnectionState &connection{io.GetConnectionState()};
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static const char *keywords[]{"APOSTROPHE", "QUOTE", "NONE", nullptr};
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switch (IdentifyValue(keyword, length, keywords)) {
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case 0:
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connection.modes.delim = '\'';
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return true;
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case 1:
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connection.modes.delim = '"';
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return true;
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case 2:
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connection.modes.delim = '\0';
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return true;
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default:
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io.GetIoErrorHandler().SignalError(IostatErrorInKeyword,
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"Invalid DELIM='%.*s'", static_cast<int>(length), keyword);
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return false;
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}
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}
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bool IONAME(SetPad)(Cookie cookie, const char *keyword, std::size_t length) {
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IoStatementState &io{*cookie};
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ConnectionState &connection{io.GetConnectionState()};
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connection.modes.pad =
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YesOrNo(keyword, length, "PAD", io.GetIoErrorHandler());
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return true;
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}
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bool IONAME(SetPos)(Cookie cookie, std::int64_t pos) {
|
|
IoStatementState &io{*cookie};
|
|
ConnectionState &connection{io.GetConnectionState()};
|
|
if (connection.access != Access::Stream) {
|
|
io.GetIoErrorHandler().SignalError(
|
|
"REC= may not appear unless ACCESS='STREAM'");
|
|
return false;
|
|
}
|
|
if (pos < 1) {
|
|
io.GetIoErrorHandler().SignalError(
|
|
"POS=%zd is invalid", static_cast<std::intmax_t>(pos));
|
|
return false;
|
|
}
|
|
if (auto *unit{io.GetExternalFileUnit()}) {
|
|
unit->SetPosition(pos);
|
|
return true;
|
|
}
|
|
io.GetIoErrorHandler().Crash("SetPos() on internal unit");
|
|
return false;
|
|
}
|
|
|
|
bool IONAME(SetRec)(Cookie cookie, std::int64_t rec) {
|
|
IoStatementState &io{*cookie};
|
|
ConnectionState &connection{io.GetConnectionState()};
|
|
if (connection.access != Access::Direct) {
|
|
io.GetIoErrorHandler().SignalError(
|
|
"REC= may not appear unless ACCESS='DIRECT'");
|
|
return false;
|
|
}
|
|
if (!connection.isFixedRecordLength || !connection.recordLength) {
|
|
io.GetIoErrorHandler().SignalError("RECL= was not specified");
|
|
return false;
|
|
}
|
|
if (rec < 1) {
|
|
io.GetIoErrorHandler().SignalError(
|
|
"REC=%zd is invalid", static_cast<std::intmax_t>(rec));
|
|
return false;
|
|
}
|
|
connection.currentRecordNumber = rec;
|
|
if (auto *unit{io.GetExternalFileUnit()}) {
|
|
unit->SetPosition((rec - 1) * *connection.recordLength);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool IONAME(SetRound)(Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
ConnectionState &connection{io.GetConnectionState()};
|
|
static const char *keywords[]{"UP", "DOWN", "ZERO", "NEAREST", "COMPATIBLE",
|
|
"PROCESSOR_DEFINED", nullptr};
|
|
switch (IdentifyValue(keyword, length, keywords)) {
|
|
case 0:
|
|
connection.modes.round = decimal::RoundUp;
|
|
return true;
|
|
case 1:
|
|
connection.modes.round = decimal::RoundDown;
|
|
return true;
|
|
case 2:
|
|
connection.modes.round = decimal::RoundToZero;
|
|
return true;
|
|
case 3:
|
|
connection.modes.round = decimal::RoundNearest;
|
|
return true;
|
|
case 4:
|
|
connection.modes.round = decimal::RoundCompatible;
|
|
return true;
|
|
case 5:
|
|
connection.modes.round = executionEnvironment.defaultOutputRoundingMode;
|
|
return true;
|
|
default:
|
|
io.GetIoErrorHandler().SignalError(IostatErrorInKeyword,
|
|
"Invalid ROUND='%.*s'", static_cast<int>(length), keyword);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool IONAME(SetSign)(Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
ConnectionState &connection{io.GetConnectionState()};
|
|
static const char *keywords[]{"PLUS", "YES", "PROCESSOR_DEFINED", nullptr};
|
|
switch (IdentifyValue(keyword, length, keywords)) {
|
|
case 0:
|
|
connection.modes.editingFlags |= signPlus;
|
|
return true;
|
|
case 1:
|
|
case 2: // processor default is SS
|
|
connection.modes.editingFlags &= ~signPlus;
|
|
return true;
|
|
default:
|
|
io.GetIoErrorHandler().SignalError(IostatErrorInKeyword,
|
|
"Invalid SIGN='%.*s'", static_cast<int>(length), keyword);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool IONAME(SetAccess)(Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetAccess() called when not in an OPEN statement");
|
|
}
|
|
static const char *keywords[]{"SEQUENTIAL", "DIRECT", "STREAM", nullptr};
|
|
switch (IdentifyValue(keyword, length, keywords)) {
|
|
case 0:
|
|
open->set_access(Access::Sequential);
|
|
break;
|
|
case 1:
|
|
open->set_access(Access::Direct);
|
|
break;
|
|
case 2:
|
|
open->set_access(Access::Stream);
|
|
break;
|
|
default:
|
|
open->SignalError(IostatErrorInKeyword, "Invalid ACCESS='%.*s'",
|
|
static_cast<int>(length), keyword);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool IONAME(SetAction)(Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetAction() called when not in an OPEN statement");
|
|
}
|
|
std::optional<Action> action;
|
|
static const char *keywords[]{"READ", "WRITE", "READWRITE", nullptr};
|
|
switch (IdentifyValue(keyword, length, keywords)) {
|
|
case 0:
|
|
action = Action::Read;
|
|
break;
|
|
case 1:
|
|
action = Action::Write;
|
|
break;
|
|
case 2:
|
|
action = Action::ReadWrite;
|
|
break;
|
|
default:
|
|
open->SignalError(IostatErrorInKeyword, "Invalid ACTION='%.*s'",
|
|
static_cast<int>(length), keyword);
|
|
return false;
|
|
}
|
|
RUNTIME_CHECK(io.GetIoErrorHandler(), action.has_value());
|
|
if (open->wasExtant()) {
|
|
if ((*action != Action::Write) != open->unit().mayRead() ||
|
|
(*action != Action::Read) != open->unit().mayWrite()) {
|
|
open->SignalError("ACTION= may not be changed on an open unit");
|
|
}
|
|
}
|
|
open->set_action(*action);
|
|
return true;
|
|
}
|
|
|
|
bool IONAME(SetAsynchronous)(
|
|
Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetAsynchronous() called when not in an OPEN statement");
|
|
}
|
|
static const char *keywords[]{"YES", "NO", nullptr};
|
|
switch (IdentifyValue(keyword, length, keywords)) {
|
|
case 0:
|
|
open->unit().set_mayAsynchronous(true);
|
|
return true;
|
|
case 1:
|
|
open->unit().set_mayAsynchronous(false);
|
|
return true;
|
|
default:
|
|
open->SignalError(IostatErrorInKeyword, "Invalid ASYNCHRONOUS='%.*s'",
|
|
static_cast<int>(length), keyword);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool IONAME(SetCarriagecontrol)(
|
|
Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetCarriageControl() called when not in an OPEN statement");
|
|
}
|
|
static const char *keywords[]{"LIST", "FORTRAN", "NONE", nullptr};
|
|
switch (IdentifyValue(keyword, length, keywords)) {
|
|
case 0:
|
|
return true;
|
|
case 1:
|
|
case 2:
|
|
open->SignalError(IostatErrorInKeyword,
|
|
"Unimplemented CARRIAGECONTROL='%.*s'", static_cast<int>(length),
|
|
keyword);
|
|
return false;
|
|
default:
|
|
open->SignalError(IostatErrorInKeyword, "Invalid CARRIAGECONTROL='%.*s'",
|
|
static_cast<int>(length), keyword);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool IONAME(SetConvert)(
|
|
Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetConvert() called when not in an OPEN statement");
|
|
}
|
|
if (auto convert{GetConvertFromString(keyword, length)}) {
|
|
open->set_convert(*convert);
|
|
return true;
|
|
} else {
|
|
open->SignalError(IostatErrorInKeyword, "Invalid CONVERT='%.*s'",
|
|
static_cast<int>(length), keyword);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool IONAME(SetEncoding)(
|
|
Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetEncoding() called when not in an OPEN statement");
|
|
}
|
|
bool isUTF8{false};
|
|
static const char *keywords[]{"UTF-8", "DEFAULT", nullptr};
|
|
switch (IdentifyValue(keyword, length, keywords)) {
|
|
case 0:
|
|
isUTF8 = true;
|
|
break;
|
|
case 1:
|
|
isUTF8 = false;
|
|
break;
|
|
default:
|
|
open->SignalError(IostatErrorInKeyword, "Invalid ENCODING='%.*s'",
|
|
static_cast<int>(length), keyword);
|
|
}
|
|
if (isUTF8 != open->unit().isUTF8) {
|
|
if (open->wasExtant()) {
|
|
open->SignalError("ENCODING= may not be changed on an open unit");
|
|
}
|
|
open->unit().isUTF8 = isUTF8;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool IONAME(SetForm)(Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetForm() called when not in an OPEN statement");
|
|
}
|
|
static const char *keywords[]{"FORMATTED", "UNFORMATTED", nullptr};
|
|
switch (IdentifyValue(keyword, length, keywords)) {
|
|
case 0:
|
|
open->set_isUnformatted(false);
|
|
break;
|
|
case 1:
|
|
open->set_isUnformatted(true);
|
|
break;
|
|
default:
|
|
open->SignalError(IostatErrorInKeyword, "Invalid FORM='%.*s'",
|
|
static_cast<int>(length), keyword);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool IONAME(SetPosition)(
|
|
Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetPosition() called when not in an OPEN statement");
|
|
}
|
|
static const char *positions[]{"ASIS", "REWIND", "APPEND", nullptr};
|
|
switch (IdentifyValue(keyword, length, positions)) {
|
|
case 0:
|
|
open->set_position(Position::AsIs);
|
|
return true;
|
|
case 1:
|
|
open->set_position(Position::Rewind);
|
|
return true;
|
|
case 2:
|
|
open->set_position(Position::Append);
|
|
return true;
|
|
default:
|
|
io.GetIoErrorHandler().SignalError(IostatErrorInKeyword,
|
|
"Invalid POSITION='%.*s'", static_cast<int>(length), keyword);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool IONAME(SetRecl)(Cookie cookie, std::size_t n) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetRecl() called when not in an OPEN statement");
|
|
}
|
|
if (n <= 0) {
|
|
io.GetIoErrorHandler().SignalError("RECL= must be greater than zero");
|
|
}
|
|
if (open->wasExtant() && open->unit().isFixedRecordLength &&
|
|
open->unit().recordLength.value_or(n) != static_cast<std::int64_t>(n)) {
|
|
open->SignalError("RECL= may not be changed for an open unit");
|
|
}
|
|
open->unit().isFixedRecordLength = true;
|
|
open->unit().recordLength = n;
|
|
return true;
|
|
}
|
|
|
|
bool IONAME(SetStatus)(Cookie cookie, const char *keyword, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
if (auto *open{io.get_if<OpenStatementState>()}) {
|
|
static const char *statuses[]{
|
|
"OLD", "NEW", "SCRATCH", "REPLACE", "UNKNOWN", nullptr};
|
|
switch (IdentifyValue(keyword, length, statuses)) {
|
|
case 0:
|
|
open->set_status(OpenStatus::Old);
|
|
return true;
|
|
case 1:
|
|
open->set_status(OpenStatus::New);
|
|
return true;
|
|
case 2:
|
|
open->set_status(OpenStatus::Scratch);
|
|
return true;
|
|
case 3:
|
|
open->set_status(OpenStatus::Replace);
|
|
return true;
|
|
case 4:
|
|
open->set_status(OpenStatus::Unknown);
|
|
return true;
|
|
default:
|
|
io.GetIoErrorHandler().SignalError(IostatErrorInKeyword,
|
|
"Invalid STATUS='%.*s'", static_cast<int>(length), keyword);
|
|
}
|
|
return false;
|
|
}
|
|
if (auto *close{io.get_if<CloseStatementState>()}) {
|
|
static const char *statuses[]{"KEEP", "DELETE", nullptr};
|
|
switch (IdentifyValue(keyword, length, statuses)) {
|
|
case 0:
|
|
close->set_status(CloseStatus::Keep);
|
|
return true;
|
|
case 1:
|
|
close->set_status(CloseStatus::Delete);
|
|
return true;
|
|
default:
|
|
io.GetIoErrorHandler().SignalError(IostatErrorInKeyword,
|
|
"Invalid STATUS='%.*s'", static_cast<int>(length), keyword);
|
|
}
|
|
return false;
|
|
}
|
|
if (io.get_if<NoopCloseStatementState>()) {
|
|
return true; // don't bother validating STATUS= in a no-op CLOSE
|
|
}
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetStatus() called when not in an OPEN or CLOSE statement");
|
|
}
|
|
|
|
bool IONAME(SetFile)(Cookie cookie, const char *path, std::size_t chars) {
|
|
IoStatementState &io{*cookie};
|
|
if (auto *open{io.get_if<OpenStatementState>()}) {
|
|
open->set_path(path, chars);
|
|
return true;
|
|
}
|
|
io.GetIoErrorHandler().Crash(
|
|
"SetFile() called when not in an OPEN statement");
|
|
return false;
|
|
}
|
|
|
|
template <typename INT>
|
|
static bool SetInteger(INT &x, int kind, std::int64_t value) {
|
|
switch (kind) {
|
|
case 1:
|
|
reinterpret_cast<std::int8_t &>(x) = value;
|
|
return true;
|
|
case 2:
|
|
reinterpret_cast<std::int16_t &>(x) = value;
|
|
return true;
|
|
case 4:
|
|
reinterpret_cast<std::int32_t &>(x) = value;
|
|
return true;
|
|
case 8:
|
|
reinterpret_cast<std::int64_t &>(x) = value;
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool IONAME(GetNewUnit)(Cookie cookie, int &unit, int kind) {
|
|
IoStatementState &io{*cookie};
|
|
auto *open{io.get_if<OpenStatementState>()};
|
|
if (!open) {
|
|
io.GetIoErrorHandler().Crash(
|
|
"GetNewUnit() called when not in an OPEN statement");
|
|
}
|
|
if (!SetInteger(unit, kind, open->unit().unitNumber())) {
|
|
open->SignalError("GetNewUnit(): Bad INTEGER kind(%d) for result");
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// Data transfers
|
|
|
|
bool IONAME(OutputDescriptor)(Cookie cookie, const Descriptor &descriptor) {
|
|
return descr::DescriptorIO<Direction::Output>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(InputDescriptor)(Cookie cookie, const Descriptor &descriptor) {
|
|
return descr::DescriptorIO<Direction::Input>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(OutputUnformattedBlock)(Cookie cookie, const char *x,
|
|
std::size_t length, std::size_t elementBytes) {
|
|
IoStatementState &io{*cookie};
|
|
if (auto *unf{io.get_if<UnformattedIoStatementState<Direction::Output>>()}) {
|
|
return unf->Emit(x, length, elementBytes);
|
|
}
|
|
io.GetIoErrorHandler().Crash("OutputUnformattedBlock() called for an I/O "
|
|
"statement that is not unformatted output");
|
|
return false;
|
|
}
|
|
|
|
bool IONAME(InputUnformattedBlock)(
|
|
Cookie cookie, char *x, std::size_t length, std::size_t elementBytes) {
|
|
IoStatementState &io{*cookie};
|
|
io.BeginReadingRecord();
|
|
if (auto *unf{io.get_if<UnformattedIoStatementState<Direction::Input>>()}) {
|
|
return unf->Receive(x, length, elementBytes);
|
|
}
|
|
io.GetIoErrorHandler().Crash("InputUnformattedBlock() called for an I/O "
|
|
"statement that is not unformatted output");
|
|
return false;
|
|
}
|
|
|
|
bool IONAME(OutputInteger64)(Cookie cookie, std::int64_t n) {
|
|
cookie->CheckFormattedStmtType<Direction::Output>("OutputInteger64");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(
|
|
TypeCategory::Integer, sizeof n, reinterpret_cast<void *>(&n), 0);
|
|
return descr::DescriptorIO<Direction::Output>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(InputInteger)(Cookie cookie, std::int64_t &n, int kind) {
|
|
cookie->CheckFormattedStmtType<Direction::Input>("InputInteger");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(
|
|
TypeCategory::Integer, kind, reinterpret_cast<void *>(&n), 0);
|
|
return descr::DescriptorIO<Direction::Input>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(OutputReal32)(Cookie cookie, float x) {
|
|
cookie->CheckFormattedStmtType<Direction::Output>("OutputReal32");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(TypeCategory::Real, 4, reinterpret_cast<void *>(&x), 0);
|
|
return descr::DescriptorIO<Direction::Output>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(OutputReal64)(Cookie cookie, double x) {
|
|
cookie->CheckFormattedStmtType<Direction::Output>("OutputReal64");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(TypeCategory::Real, 8, reinterpret_cast<void *>(&x), 0);
|
|
return descr::DescriptorIO<Direction::Output>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(InputReal32)(Cookie cookie, float &x) {
|
|
cookie->CheckFormattedStmtType<Direction::Input>("InputReal32");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(TypeCategory::Real, 4, reinterpret_cast<void *>(&x), 0);
|
|
return descr::DescriptorIO<Direction::Input>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(InputReal64)(Cookie cookie, double &x) {
|
|
cookie->CheckFormattedStmtType<Direction::Input>("InputReal64");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(TypeCategory::Real, 8, reinterpret_cast<void *>(&x), 0);
|
|
return descr::DescriptorIO<Direction::Input>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(OutputComplex32)(Cookie cookie, float r, float i) {
|
|
cookie->CheckFormattedStmtType<Direction::Output>("OutputComplex32");
|
|
float z[2]{r, i};
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(
|
|
TypeCategory::Complex, 4, reinterpret_cast<void *>(&z), 0);
|
|
return descr::DescriptorIO<Direction::Output>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(OutputComplex64)(Cookie cookie, double r, double i) {
|
|
cookie->CheckFormattedStmtType<Direction::Output>("OutputComplex64");
|
|
double z[2]{r, i};
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(
|
|
TypeCategory::Complex, 8, reinterpret_cast<void *>(&z), 0);
|
|
return descr::DescriptorIO<Direction::Output>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(InputComplex32)(Cookie cookie, float z[2]) {
|
|
cookie->CheckFormattedStmtType<Direction::Input>("InputComplex32");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(
|
|
TypeCategory::Complex, 4, reinterpret_cast<void *>(z), 0);
|
|
return descr::DescriptorIO<Direction::Input>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(InputComplex64)(Cookie cookie, double z[2]) {
|
|
cookie->CheckFormattedStmtType<Direction::Input>("InputComplex64");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(
|
|
TypeCategory::Complex, 8, reinterpret_cast<void *>(z), 0);
|
|
return descr::DescriptorIO<Direction::Input>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(OutputCharacter)(
|
|
Cookie cookie, const char *x, std::size_t length, int kind) {
|
|
cookie->CheckFormattedStmtType<Direction::Output>("OutputCharacter");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(
|
|
kind, length, reinterpret_cast<void *>(const_cast<char *>(x)), 0);
|
|
return descr::DescriptorIO<Direction::Output>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(OutputAscii)(Cookie cookie, const char *x, std::size_t length) {
|
|
return IONAME(OutputCharacter(cookie, x, length, 1));
|
|
}
|
|
|
|
bool IONAME(InputCharacter)(
|
|
Cookie cookie, char *x, std::size_t length, int kind) {
|
|
cookie->CheckFormattedStmtType<Direction::Input>("InputCharacter");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(kind, length, reinterpret_cast<void *>(x), 0);
|
|
return descr::DescriptorIO<Direction::Input>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(InputAscii)(Cookie cookie, char *x, std::size_t length) {
|
|
return IONAME(InputCharacter(cookie, x, length, 1));
|
|
}
|
|
|
|
bool IONAME(OutputLogical)(Cookie cookie, bool truth) {
|
|
cookie->CheckFormattedStmtType<Direction::Output>("OutputLogical");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(
|
|
TypeCategory::Logical, sizeof truth, reinterpret_cast<void *>(&truth), 0);
|
|
return descr::DescriptorIO<Direction::Output>(*cookie, descriptor);
|
|
}
|
|
|
|
bool IONAME(InputLogical)(Cookie cookie, bool &truth) {
|
|
cookie->CheckFormattedStmtType<Direction::Input>("InputLogical");
|
|
StaticDescriptor staticDescriptor;
|
|
Descriptor &descriptor{staticDescriptor.descriptor()};
|
|
descriptor.Establish(
|
|
TypeCategory::Logical, sizeof truth, reinterpret_cast<void *>(&truth), 0);
|
|
return descr::DescriptorIO<Direction::Input>(*cookie, descriptor);
|
|
}
|
|
|
|
void IONAME(GetIoMsg)(Cookie cookie, char *msg, std::size_t length) {
|
|
IoErrorHandler &handler{cookie->GetIoErrorHandler()};
|
|
if (handler.GetIoStat()) { // leave "msg" alone when no error
|
|
handler.GetIoMsg(msg, length);
|
|
}
|
|
}
|
|
|
|
bool IONAME(InquireCharacter)(Cookie cookie, InquiryKeywordHash inquiry,
|
|
char *result, std::size_t length) {
|
|
IoStatementState &io{*cookie};
|
|
return io.Inquire(inquiry, result, length);
|
|
}
|
|
|
|
bool IONAME(InquireLogical)(
|
|
Cookie cookie, InquiryKeywordHash inquiry, bool &result) {
|
|
IoStatementState &io{*cookie};
|
|
return io.Inquire(inquiry, result);
|
|
}
|
|
|
|
bool IONAME(InquirePendingId)(Cookie cookie, std::int64_t id, bool &result) {
|
|
IoStatementState &io{*cookie};
|
|
return io.Inquire(HashInquiryKeyword("PENDING"), id, result);
|
|
}
|
|
|
|
bool IONAME(InquireInteger64)(
|
|
Cookie cookie, InquiryKeywordHash inquiry, std::int64_t &result, int kind) {
|
|
IoStatementState &io{*cookie};
|
|
std::int64_t n;
|
|
if (io.Inquire(inquiry, n)) {
|
|
SetInteger(result, kind, n);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
enum Iostat IONAME(EndIoStatement)(Cookie cookie) {
|
|
IoStatementState &io{*cookie};
|
|
return static_cast<enum Iostat>(io.EndIoStatement());
|
|
}
|
|
} // namespace Fortran::runtime::io
|