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[flang] Set right "inNamelist" flag 

NAMELIST I/O was inconsistent in its choice of which set of I/O modes
to set the "inNamelist" flag.  The wrong choice was in the set of modes
that are part of the persistent state of an I/O connection; the right
place is the set of modes that are reinitialized at the beginning of
each I/O statement so that they can be modified by READ/WRITE control
list specifiers and FORMAT control edit descriptors.  Fix.

Differential Revision: https://reviews.llvm.org/D118745
This commit is contained in:
Peter Klausler 2022-01-27 12:09:07 -08:00
parent ddd3807e69
commit 9772dbba74
2 changed files with 5 additions and 7 deletions
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2
flang/runtime/io-stmt.h
View File

@ -220,7 +220,7 @@ public:
// Skips spaces, advances records, and ignores NAMELIST comments
std::optional<char32_t> GetNextNonBlank() {
auto ch{GetCurrentChar()};
bool inNamelist{GetConnectionState().modes.inNamelist};
bool inNamelist{mutableModes().inNamelist};
while (!ch || *ch == ' ' || *ch == '\t' || (inNamelist && *ch == '!')) {
if (ch && (*ch == ' ' || *ch == '\t')) {
HandleRelativePosition(1);

10
flang/runtime/namelist.cpp
View File

@ -28,9 +28,9 @@ static inline char32_t GetComma(IoStatementState &io) {
bool IONAME(OutputNamelist)(Cookie cookie, const NamelistGroup &group) {
IoStatementState &io{*cookie};
io.CheckFormattedStmtType<Direction::Output>("OutputNamelist");
ConnectionState &connection{io.GetConnectionState()};
connection.modes.inNamelist = true;
io.mutableModes().inNamelist = true;
char comma{static_cast<char>(GetComma(io))};
ConnectionState &connection{io.GetConnectionState()};
// Internal functions to advance records and convert case
const auto EmitWithAdvance{[&](char ch) -> bool {
return (!connection.NeedAdvance(1) || io.AdvanceRecord()) &&
@ -355,8 +355,7 @@ static void SkipNamelistGroup(IoStatementState &io) {
bool IONAME(InputNamelist)(Cookie cookie, const NamelistGroup &group) {
IoStatementState &io{*cookie};
io.CheckFormattedStmtType<Direction::Input>("InputNamelist");
ConnectionState &connection{io.GetConnectionState()};
connection.modes.inNamelist = true;
io.mutableModes().inNamelist = true;
IoErrorHandler &handler{io.GetIoErrorHandler()};
auto *listInput{io.get_if<ListDirectedStatementState<Direction::Input>>()};
RUNTIME_CHECK(handler, listInput != nullptr);
@ -485,8 +484,7 @@ bool IONAME(InputNamelist)(Cookie cookie, const NamelistGroup &group) {
bool IsNamelistName(IoStatementState &io) {
if (io.get_if<ListDirectedStatementState<Direction::Input>>()) {
ConnectionState &connection{io.GetConnectionState()};
if (connection.modes.inNamelist) {
if (io.mutableModes().inNamelist) {
SavedPosition savedPosition{io};
if (auto ch{io.GetNextNonBlank()}) {
if (IsLegalIdStart(*ch)) {