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llvm-project/flang/lib/Parser/unparse.cpp

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//===-- lib/Parser/unparse.cpp --------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// Generates Fortran from the content of a parse tree, using the
// traversal templates in parse-tree-visitor.h.
#include "flang/Parser/unparse.h"
#include "flang/Common/Fortran.h"
#include "flang/Common/idioms.h"
#include "flang/Common/indirection.h"
#include "flang/Parser/characters.h"
#include "flang/Parser/parse-tree-visitor.h"
#include "flang/Parser/parse-tree.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cinttypes>
#include <cstddef>
#include <set>
namespace Fortran::parser {
class UnparseVisitor {
public:
UnparseVisitor(llvm::raw_ostream &out, int indentationAmount,
Encoding encoding, bool capitalize, bool backslashEscapes,
preStatementType *preStatement, AnalyzedObjectsAsFortran *asFortran)
: out_{out}, indentationAmount_{indentationAmount}, encoding_{encoding},
capitalizeKeywords_{capitalize}, backslashEscapes_{backslashEscapes},
preStatement_{preStatement}, asFortran_{asFortran} {}
// In nearly all cases, this code avoids defining Boolean-valued Pre()
// callbacks for the parse tree walking framework in favor of two void
// functions, Before() and Unparse(), which imply true and false return
// values for Pre() respectively.
template <typename T> void Before(const T &) {}
template <typename T> double Unparse(const T &); // not void, never used
template <typename T> bool Pre(const T &x) {
if constexpr (std::is_void_v<decltype(Unparse(x))>) {
// There is a local definition of Unparse() for this type. It
// overrides the parse tree walker's default Walk() over the descendents.
Before(x);
Unparse(x);
Post(x);
return false; // Walk() does not visit descendents
} else {
Before(x);
return true; // there's no Unparse() defined here, Walk() the descendents
}
}
template <typename T> void Post(const T &) {}
// Emit simple types as-is.
void Unparse(const std::string &x) { Put(x); }
void Unparse(int x) { Put(std::to_string(x)); }
void Unparse(unsigned int x) { Put(std::to_string(x)); }
void Unparse(long x) { Put(std::to_string(x)); }
void Unparse(unsigned long x) { Put(std::to_string(x)); }
void Unparse(long long x) { Put(std::to_string(x)); }
void Unparse(unsigned long long x) { Put(std::to_string(x)); }
void Unparse(char x) { Put(x); }
// Statement labels and ends of lines
template <typename T> void Before(const Statement<T> &x) {
if (preStatement_) {
(*preStatement_)(x.source, out_, indent_);
}
Walk(x.label, " ");
}
template <typename T> void Post(const Statement<T> &) { Put('\n'); }
// The special-case formatting functions for these productions are
// ordered to correspond roughly to their order of appearance in
// the Fortran 2018 standard (and parse-tree.h).
void Unparse(const Program &x) { // R501
Walk("", x.v, "\n"); // put blank lines between ProgramUnits
}
void Unparse(const Name &x) { // R603
Put(x.ToString());
}
void Unparse(const DefinedOperator::IntrinsicOperator &x) { // R608
switch (x) {
case DefinedOperator::IntrinsicOperator::Power:
Put("**");
break;
case DefinedOperator::IntrinsicOperator::Multiply:
Put('*');
break;
case DefinedOperator::IntrinsicOperator::Divide:
Put('/');
break;
case DefinedOperator::IntrinsicOperator::Add:
Put('+');
break;
case DefinedOperator::IntrinsicOperator::Subtract:
Put('-');
break;
case DefinedOperator::IntrinsicOperator::Concat:
Put("//");
break;
case DefinedOperator::IntrinsicOperator::LT:
Put('<');
break;
case DefinedOperator::IntrinsicOperator::LE:
Put("<=");
break;
case DefinedOperator::IntrinsicOperator::EQ:
Put("==");
break;
case DefinedOperator::IntrinsicOperator::NE:
Put("/=");
break;
case DefinedOperator::IntrinsicOperator::GE:
Put(">=");
break;
case DefinedOperator::IntrinsicOperator::GT:
Put('>');
break;
default:
Put('.'), Word(DefinedOperator::EnumToString(x)), Put('.');
}
}
void Post(const Star &) { Put('*'); } // R701 &c.
void Post(const TypeParamValue::Deferred &) { Put(':'); } // R701
void Unparse(const DeclarationTypeSpec::Type &x) { // R703
Word("TYPE("), Walk(x.derived), Put(')');
}
void Unparse(const DeclarationTypeSpec::Class &x) {
Word("CLASS("), Walk(x.derived), Put(')');
}
void Post(const DeclarationTypeSpec::ClassStar &) { Word("CLASS(*)"); }
void Post(const DeclarationTypeSpec::TypeStar &) { Word("TYPE(*)"); }
void Unparse(const DeclarationTypeSpec::Record &x) {
Word("RECORD/"), Walk(x.v), Put('/');
}
void Before(const IntrinsicTypeSpec::Real &) { // R704
Word("REAL");
}
void Before(const IntrinsicTypeSpec::Complex &) { Word("COMPLEX"); }
void Post(const IntrinsicTypeSpec::DoublePrecision &) {
Word("DOUBLE PRECISION");
}
void Before(const IntrinsicTypeSpec::Character &) { Word("CHARACTER"); }
void Before(const IntrinsicTypeSpec::Logical &) { Word("LOGICAL"); }
void Post(const IntrinsicTypeSpec::DoubleComplex &) {
Word("DOUBLE COMPLEX");
}
void Before(const IntegerTypeSpec &) { // R705
Word("INTEGER");
}
void Unparse(const KindSelector &x) { // R706
std::visit(
common::visitors{
[&](const ScalarIntConstantExpr &y) {
Put('('), Word("KIND="), Walk(y), Put(')');
},
[&](const KindSelector::StarSize &y) { Put('*'), Walk(y.v); },
},
x.u);
}
void Unparse(const SignedIntLiteralConstant &x) { // R707
Put(std::get<CharBlock>(x.t).ToString());
Walk("_", std::get<std::optional<KindParam>>(x.t));
}
void Unparse(const IntLiteralConstant &x) { // R708
Put(std::get<CharBlock>(x.t).ToString());
Walk("_", std::get<std::optional<KindParam>>(x.t));
}
void Unparse(const Sign &x) { // R712
Put(x == Sign::Negative ? '-' : '+');
}
void Unparse(const RealLiteralConstant &x) { // R714, R715
Put(x.real.source.ToString()), Walk("_", x.kind);
}
void Unparse(const ComplexLiteralConstant &x) { // R718 - R720
Put('('), Walk(x.t, ","), Put(')');
}
void Unparse(const CharSelector::LengthAndKind &x) { // R721
Put('('), Word("KIND="), Walk(x.kind);
Walk(", LEN=", x.length), Put(')');
}
void Unparse(const LengthSelector &x) { // R722
std::visit(common::visitors{
[&](const TypeParamValue &y) {
Put('('), Word("LEN="), Walk(y), Put(')');
},
[&](const CharLength &y) { Put('*'), Walk(y); },
},
x.u);
}
void Unparse(const CharLength &x) { // R723
std::visit(
common::visitors{
[&](const TypeParamValue &y) { Put('('), Walk(y), Put(')'); },
[&](const std::int64_t &y) { Walk(y); },
},
x.u);
}
void Unparse(const CharLiteralConstant &x) { // R724
const auto &str{std::get<std::string>(x.t)};
if (const auto &k{std::get<std::optional<KindParam>>(x.t)}) {
Walk(*k), Put('_');
}
PutNormalized(str);
}
void Unparse(const HollerithLiteralConstant &x) {
auto ucs{DecodeString<std::u32string, Encoding::UTF_8>(x.v, false)};
Unparse(ucs.size());
Put('H');
for (char32_t ch : ucs) {
EncodedCharacter encoded{EncodeCharacter(encoding_, ch)};
for (int j{0}; j < encoded.bytes; ++j) {
Put(encoded.buffer[j]);
}
}
}
void Unparse(const LogicalLiteralConstant &x) { // R725
Put(std::get<bool>(x.t) ? ".TRUE." : ".FALSE.");
Walk("_", std::get<std::optional<KindParam>>(x.t));
}
void Unparse(const DerivedTypeStmt &x) { // R727
Word("TYPE"), Walk(", ", std::get<std::list<TypeAttrSpec>>(x.t), ", ");
Put(" :: "), Walk(std::get<Name>(x.t));
Walk("(", std::get<std::list<Name>>(x.t), ", ", ")");
Indent();
}
void Unparse(const Abstract &) { // R728, &c.
Word("ABSTRACT");
}
void Post(const TypeAttrSpec::BindC &) { Word("BIND(C)"); }
void Unparse(const TypeAttrSpec::Extends &x) {
Word("EXTENDS("), Walk(x.v), Put(')');
}
void Unparse(const EndTypeStmt &x) { // R730
Outdent(), Word("END TYPE"), Walk(" ", x.v);
}
void Unparse(const SequenceStmt &) { // R731
Word("SEQUENCE");
}
void Unparse(const TypeParamDefStmt &x) { // R732
Walk(std::get<IntegerTypeSpec>(x.t));
Put(", "), Walk(std::get<common::TypeParamAttr>(x.t));
Put(" :: "), Walk(std::get<std::list<TypeParamDecl>>(x.t), ", ");
}
void Unparse(const TypeParamDecl &x) { // R733
Walk(std::get<Name>(x.t));
Walk("=", std::get<std::optional<ScalarIntConstantExpr>>(x.t));
}
void Unparse(const DataComponentDefStmt &x) { // R737
const auto &dts{std::get<DeclarationTypeSpec>(x.t)};
const auto &attrs{std::get<std::list<ComponentAttrSpec>>(x.t)};
const auto &decls{std::get<std::list<ComponentDecl>>(x.t)};
Walk(dts), Walk(", ", attrs, ", ");
if (!attrs.empty() ||
(!std::holds_alternative<DeclarationTypeSpec::Record>(dts.u) &&
std::none_of(
decls.begin(), decls.end(), [](const ComponentDecl &d) {
const auto &init{
std::get<std::optional<Initialization>>(d.t)};
return init &&
std::holds_alternative<
std::list<common::Indirection<DataStmtValue>>>(
init->u);
}))) {
Put(" ::");
}
Put(' '), Walk(decls, ", ");
}
void Unparse(const Allocatable &) { // R738
Word("ALLOCATABLE");
}
void Unparse(const Pointer &) { Word("POINTER"); }
void Unparse(const Contiguous &) { Word("CONTIGUOUS"); }
void Before(const ComponentAttrSpec &x) {
std::visit(common::visitors{
[&](const CoarraySpec &) { Word("CODIMENSION["); },
[&](const ComponentArraySpec &) { Word("DIMENSION("); },
[](const auto &) {},
},
x.u);
}
void Post(const ComponentAttrSpec &x) {
std::visit(common::visitors{
[&](const CoarraySpec &) { Put(']'); },
[&](const ComponentArraySpec &) { Put(')'); },
[](const auto &) {},
},
x.u);
}
void Unparse(const ComponentDecl &x) { // R739
Walk(std::get<ObjectName>(x.t));
Walk("(", std::get<std::optional<ComponentArraySpec>>(x.t), ")");
Walk("[", std::get<std::optional<CoarraySpec>>(x.t), "]");
Walk("*", std::get<std::optional<CharLength>>(x.t));
Walk(std::get<std::optional<Initialization>>(x.t));
}
void Unparse(const ComponentArraySpec &x) { // R740
std::visit(common::visitors{
[&](const std::list<ExplicitShapeSpec> &y) { Walk(y, ","); },
[&](const DeferredShapeSpecList &y) { Walk(y); },
},
x.u);
}
void Unparse(const ProcComponentDefStmt &x) { // R741
Word("PROCEDURE(");
Walk(std::get<std::optional<ProcInterface>>(x.t)), Put(')');
Walk(", ", std::get<std::list<ProcComponentAttrSpec>>(x.t), ", ");
Put(" :: "), Walk(std::get<std::list<ProcDecl>>(x.t), ", ");
}
void Unparse(const NoPass &) { // R742
Word("NOPASS");
}
void Unparse(const Pass &x) { Word("PASS"), Walk("(", x.v, ")"); }
void Unparse(const Initialization &x) { // R743 & R805
std::visit(common::visitors{
[&](const ConstantExpr &y) { Put(" = "), Walk(y); },
[&](const NullInit &y) { Put(" => "), Walk(y); },
[&](const InitialDataTarget &y) { Put(" => "), Walk(y); },
[&](const std::list<common::Indirection<DataStmtValue>> &y) {
Walk("/", y, ", ", "/");
},
},
x.u);
}
void Unparse(const PrivateStmt &) { // R745
Word("PRIVATE");
}
void Unparse(const TypeBoundProcedureStmt::WithoutInterface &x) { // R749
Word("PROCEDURE"), Walk(", ", x.attributes, ", ");
Put(" :: "), Walk(x.declarations, ", ");
}
void Unparse(const TypeBoundProcedureStmt::WithInterface &x) {
Word("PROCEDURE("), Walk(x.interfaceName), Put("), ");
Walk(x.attributes);
Put(" :: "), Walk(x.bindingNames, ", ");
}
void Unparse(const TypeBoundProcDecl &x) { // R750
Walk(std::get<Name>(x.t));
Walk(" => ", std::get<std::optional<Name>>(x.t));
}
void Unparse(const TypeBoundGenericStmt &x) { // R751
Word("GENERIC"), Walk(", ", std::get<std::optional<AccessSpec>>(x.t));
Put(" :: "), Walk(std::get<common::Indirection<GenericSpec>>(x.t));
Put(" => "), Walk(std::get<std::list<Name>>(x.t), ", ");
}
void Post(const BindAttr::Deferred &) { Word("DEFERRED"); } // R752
void Post(const BindAttr::Non_Overridable &) { Word("NON_OVERRIDABLE"); }
void Unparse(const FinalProcedureStmt &x) { // R753
Word("FINAL :: "), Walk(x.v, ", ");
}
void Unparse(const DerivedTypeSpec &x) { // R754
Walk(std::get<Name>(x.t));
Walk("(", std::get<std::list<TypeParamSpec>>(x.t), ",", ")");
}
void Unparse(const TypeParamSpec &x) { // R755
Walk(std::get<std::optional<Keyword>>(x.t), "=");
Walk(std::get<TypeParamValue>(x.t));
}
void Unparse(const StructureConstructor &x) { // R756
Walk(std::get<DerivedTypeSpec>(x.t));
Put('('), Walk(std::get<std::list<ComponentSpec>>(x.t), ", "), Put(')');
}
void Unparse(const ComponentSpec &x) { // R757
Walk(std::get<std::optional<Keyword>>(x.t), "=");
Walk(std::get<ComponentDataSource>(x.t));
}
void Unparse(const EnumDefStmt &) { // R760
Word("ENUM, BIND(C)"), Indent();
}
void Unparse(const EnumeratorDefStmt &x) { // R761
Word("ENUMERATOR :: "), Walk(x.v, ", ");
}
void Unparse(const Enumerator &x) { // R762
Walk(std::get<NamedConstant>(x.t));
Walk(" = ", std::get<std::optional<ScalarIntConstantExpr>>(x.t));
}
void Post(const EndEnumStmt &) { // R763
Outdent(), Word("END ENUM");
}
void Unparse(const BOZLiteralConstant &x) { // R764 - R767
Put(x.v);
}
void Unparse(const AcValue::Triplet &x) { // R773
Walk(std::get<0>(x.t)), Put(':'), Walk(std::get<1>(x.t));
Walk(":", std::get<std::optional<ScalarIntExpr>>(x.t));
}
void Unparse(const ArrayConstructor &x) { // R769
Put('['), Walk(x.v), Put(']');
}
void Unparse(const AcSpec &x) { // R770
Walk(x.type, "::"), Walk(x.values, ", ");
}
template <typename A, typename B> void Unparse(const LoopBounds<A, B> &x) {
Walk(x.name), Put('='), Walk(x.lower), Put(','), Walk(x.upper);
Walk(",", x.step);
}
void Unparse(const AcImpliedDo &x) { // R774
Put('('), Walk(std::get<std::list<AcValue>>(x.t), ", ");
Put(", "), Walk(std::get<AcImpliedDoControl>(x.t)), Put(')');
}
void Unparse(const AcImpliedDoControl &x) { // R775
Walk(std::get<std::optional<IntegerTypeSpec>>(x.t), "::");
Walk(std::get<AcImpliedDoControl::Bounds>(x.t));
}
void Unparse(const TypeDeclarationStmt &x) { // R801
const auto &dts{std::get<DeclarationTypeSpec>(x.t)};
const auto &attrs{std::get<std::list<AttrSpec>>(x.t)};
const auto &decls{std::get<std::list<EntityDecl>>(x.t)};
Walk(dts), Walk(", ", attrs, ", ");
static const auto isInitializerOldStyle{[](const Initialization &i) {
return std::holds_alternative<
std::list<common::Indirection<DataStmtValue>>>(i.u);
}};
static const auto hasAssignmentInitializer{[](const EntityDecl &d) {
// Does a declaration have a new-style =x initializer?
const auto &init{std::get<std::optional<Initialization>>(d.t)};
return init && !isInitializerOldStyle(*init);
}};
static const auto hasSlashDelimitedInitializer{[](const EntityDecl &d) {
// Does a declaration have an old-style /x/ initializer?
const auto &init{std::get<std::optional<Initialization>>(d.t)};
return init && isInitializerOldStyle(*init);
}};
const auto useDoubledColons{[&]() {
bool isRecord{std::holds_alternative<DeclarationTypeSpec::Record>(dts.u)};
if (!attrs.empty()) {
// Attributes after the type require :: before the entities.
CHECK(!isRecord);
return true;
}
if (std::any_of(decls.begin(), decls.end(), hasAssignmentInitializer)) {
// Always use :: with new style standard initializers (=x),
// since the standard requires them to appear (even in free form,
// where mandatory spaces already disambiguate INTEGER J=666).
CHECK(!isRecord);
return true;
}
if (isRecord) {
// Never put :: in a legacy extension RECORD// statement.
return false;
}
// The :: is optional for this declaration. Avoid usage that can
// crash the pgf90 compiler.
if (std::any_of(
decls.begin(), decls.end(), hasSlashDelimitedInitializer)) {
// Don't use :: when a declaration uses legacy DATA-statement-like
// /x/ initialization.
return false;
}
// Don't use :: with intrinsic types. Otherwise, use it.
return !std::holds_alternative<IntrinsicTypeSpec>(dts.u);
}};
if (useDoubledColons()) {
Put(" ::");
}
Put(' '), Walk(std::get<std::list<EntityDecl>>(x.t), ", ");
}
void Before(const AttrSpec &x) { // R802
std::visit(common::visitors{
[&](const CoarraySpec &) { Word("CODIMENSION["); },
[&](const ArraySpec &) { Word("DIMENSION("); },
[](const auto &) {},
},
x.u);
}
void Post(const AttrSpec &x) {
std::visit(common::visitors{
[&](const CoarraySpec &) { Put(']'); },
[&](const ArraySpec &) { Put(')'); },
[](const auto &) {},
},
x.u);
}
void Unparse(const EntityDecl &x) { // R803
Walk(std::get<ObjectName>(x.t));
Walk("(", std::get<std::optional<ArraySpec>>(x.t), ")");
Walk("[", std::get<std::optional<CoarraySpec>>(x.t), "]");
Walk("*", std::get<std::optional<CharLength>>(x.t));
Walk(std::get<std::optional<Initialization>>(x.t));
}
void Unparse(const NullInit &) { // R806
Word("NULL()");
}
void Unparse(const LanguageBindingSpec &x) { // R808 & R1528
Word("BIND(C"), Walk(", NAME=", x.v), Put(')');
}
void Unparse(const CoarraySpec &x) { // R809
std::visit(common::visitors{
[&](const DeferredCoshapeSpecList &y) { Walk(y); },
[&](const ExplicitCoshapeSpec &y) { Walk(y); },
},
x.u);
}
void Unparse(const DeferredCoshapeSpecList &x) { // R810
for (auto j{x.v}; j > 0; --j) {
Put(':');
if (j > 1) {
Put(',');
}
}
}
void Unparse(const ExplicitCoshapeSpec &x) { // R811
Walk(std::get<std::list<ExplicitShapeSpec>>(x.t), ",", ",");
Walk(std::get<std::optional<SpecificationExpr>>(x.t), ":"), Put('*');
}
void Unparse(const ExplicitShapeSpec &x) { // R812 - R813 & R816 - R818
Walk(std::get<std::optional<SpecificationExpr>>(x.t), ":");
Walk(std::get<SpecificationExpr>(x.t));
}
void Unparse(const ArraySpec &x) { // R815
std::visit(common::visitors{
[&](const std::list<ExplicitShapeSpec> &y) { Walk(y, ","); },
[&](const std::list<AssumedShapeSpec> &y) { Walk(y, ","); },
[&](const DeferredShapeSpecList &y) { Walk(y); },
[&](const AssumedSizeSpec &y) { Walk(y); },
[&](const ImpliedShapeSpec &y) { Walk(y); },
[&](const AssumedRankSpec &y) { Walk(y); },
},
x.u);
}
void Post(const AssumedShapeSpec &) { Put(':'); } // R819
void Unparse(const DeferredShapeSpecList &x) { // R820
for (auto j{x.v}; j > 0; --j) {
Put(':');
if (j > 1) {
Put(',');
}
}
}
void Unparse(const AssumedImpliedSpec &x) { // R821
Walk(x.v, ":");
Put('*');
}
void Unparse(const AssumedSizeSpec &x) { // R822
Walk(std::get<std::list<ExplicitShapeSpec>>(x.t), ",", ",");
Walk(std::get<AssumedImpliedSpec>(x.t));
}
void Unparse(const ImpliedShapeSpec &x) { // R823
Walk(x.v, ",");
}
void Post(const AssumedRankSpec &) { Put(".."); } // R825
void Post(const Asynchronous &) { Word("ASYNCHRONOUS"); }
void Post(const External &) { Word("EXTERNAL"); }
void Post(const Intrinsic &) { Word("INTRINSIC"); }
void Post(const Optional &) { Word("OPTIONAL"); }
void Post(const Parameter &) { Word("PARAMETER"); }
void Post(const Protected &) { Word("PROTECTED"); }
void Post(const Save &) { Word("SAVE"); }
void Post(const Target &) { Word("TARGET"); }
void Post(const Value &) { Word("VALUE"); }
void Post(const Volatile &) { Word("VOLATILE"); }
void Unparse(const IntentSpec &x) { // R826
Word("INTENT("), Walk(x.v), Put(")");
}
void Unparse(const AccessStmt &x) { // R827
Walk(std::get<AccessSpec>(x.t));
Walk(" :: ", std::get<std::list<AccessId>>(x.t), ", ");
}
void Unparse(const AllocatableStmt &x) { // R829
Word("ALLOCATABLE :: "), Walk(x.v, ", ");
}
void Unparse(const ObjectDecl &x) { // R830 & R860
Walk(std::get<ObjectName>(x.t));
Walk("(", std::get<std::optional<ArraySpec>>(x.t), ")");
Walk("[", std::get<std::optional<CoarraySpec>>(x.t), "]");
}
void Unparse(const AsynchronousStmt &x) { // R831
Word("ASYNCHRONOUS :: "), Walk(x.v, ", ");
}
void Unparse(const BindStmt &x) { // R832
Walk(x.t, " :: ");
}
void Unparse(const BindEntity &x) { // R833
bool isCommon{std::get<BindEntity::Kind>(x.t) == BindEntity::Kind::Common};
const char *slash{isCommon ? "/" : ""};
Put(slash), Walk(std::get<Name>(x.t)), Put(slash);
}
void Unparse(const CodimensionStmt &x) { // R834
Word("CODIMENSION :: "), Walk(x.v, ", ");
}
void Unparse(const CodimensionDecl &x) { // R835
Walk(std::get<Name>(x.t));
Put('['), Walk(std::get<CoarraySpec>(x.t)), Put(']');
}
void Unparse(const ContiguousStmt &x) { // R836
Word("CONTIGUOUS :: "), Walk(x.v, ", ");
}
void Unparse(const DataStmt &x) { // R837
Word("DATA "), Walk(x.v, ", ");
}
void Unparse(const DataStmtSet &x) { // R838
Walk(std::get<std::list<DataStmtObject>>(x.t), ", ");
Put('/'), Walk(std::get<std::list<DataStmtValue>>(x.t), ", "), Put('/');
}
void Unparse(const DataImpliedDo &x) { // R840, R842
Put('('), Walk(std::get<std::list<DataIDoObject>>(x.t), ", "), Put(',');
Walk(std::get<std::optional<IntegerTypeSpec>>(x.t), "::");
Walk(std::get<DataImpliedDo::Bounds>(x.t)), Put(')');
}
void Unparse(const DataStmtValue &x) { // R843
Walk(std::get<std::optional<DataStmtRepeat>>(x.t), "*");
Walk(std::get<DataStmtConstant>(x.t));
}
void Unparse(const DimensionStmt &x) { // R848
Word("DIMENSION :: "), Walk(x.v, ", ");
}
void Unparse(const DimensionStmt::Declaration &x) {
Walk(std::get<Name>(x.t));
Put('('), Walk(std::get<ArraySpec>(x.t)), Put(')');
}
void Unparse(const IntentStmt &x) { // R849
Walk(x.t, " :: ");
}
void Unparse(const OptionalStmt &x) { // R850
Word("OPTIONAL :: "), Walk(x.v, ", ");
}
void Unparse(const ParameterStmt &x) { // R851
Word("PARAMETER("), Walk(x.v, ", "), Put(')');
}
void Unparse(const NamedConstantDef &x) { // R852
Walk(x.t, "=");
}
void Unparse(const PointerStmt &x) { // R853
Word("POINTER :: "), Walk(x.v, ", ");
}
void Unparse(const PointerDecl &x) { // R854
Walk(std::get<Name>(x.t));
Walk("(", std::get<std::optional<DeferredShapeSpecList>>(x.t), ")");
}
void Unparse(const ProtectedStmt &x) { // R855
Word("PROTECTED :: "), Walk(x.v, ", ");
}
void Unparse(const SaveStmt &x) { // R856
Word("SAVE"), Walk(" :: ", x.v, ", ");
}
void Unparse(const SavedEntity &x) { // R857, R858
bool isCommon{
std::get<SavedEntity::Kind>(x.t) == SavedEntity::Kind::Common};
const char *slash{isCommon ? "/" : ""};
Put(slash), Walk(std::get<Name>(x.t)), Put(slash);
}
void Unparse(const TargetStmt &x) { // R859
Word("TARGET :: "), Walk(x.v, ", ");
}
void Unparse(const ValueStmt &x) { // R861
Word("VALUE :: "), Walk(x.v, ", ");
}
void Unparse(const VolatileStmt &x) { // R862
Word("VOLATILE :: "), Walk(x.v, ", ");
}
void Unparse(const ImplicitStmt &x) { // R863
Word("IMPLICIT ");
std::visit(common::visitors{
[&](const std::list<ImplicitSpec> &y) { Walk(y, ", "); },
[&](const std::list<ImplicitStmt::ImplicitNoneNameSpec> &y) {
Word("NONE"), Walk(" (", y, ", ", ")");
},
},
x.u);
}
void Unparse(const ImplicitSpec &x) { // R864
Walk(std::get<DeclarationTypeSpec>(x.t));
Put('('), Walk(std::get<std::list<LetterSpec>>(x.t), ", "), Put(')');
}
void Unparse(const LetterSpec &x) { // R865
Put(*std::get<const char *>(x.t));
auto second{std::get<std::optional<const char *>>(x.t)};
if (second) {
Put('-'), Put(**second);
}
}
void Unparse(const ImportStmt &x) { // R867
Word("IMPORT");
switch (x.kind) {
case common::ImportKind::Default:
Walk(" :: ", x.names, ", ");
break;
case common::ImportKind::Only:
Put(", "), Word("ONLY: ");
Walk(x.names, ", ");
break;
case common::ImportKind::None:
Word(", NONE");
break;
case common::ImportKind::All:
Word(", ALL");
break;
}
}
void Unparse(const NamelistStmt &x) { // R868
Word("NAMELIST"), Walk(x.v, ", ");
}
void Unparse(const NamelistStmt::Group &x) {
Put('/'), Walk(std::get<Name>(x.t)), Put('/');
Walk(std::get<std::list<Name>>(x.t), ", ");
}
void Unparse(const EquivalenceStmt &x) { // R870, R871
Word("EQUIVALENCE");
const char *separator{" "};
for (const std::list<EquivalenceObject> &y : x.v) {
Put(separator), Put('('), Walk(y), Put(')');
separator = ", ";
}
}
void Unparse(const CommonStmt &x) { // R873
Word("COMMON ");
Walk(x.blocks);
}
void Unparse(const CommonBlockObject &x) { // R874
Walk(std::get<Name>(x.t));
Walk("(", std::get<std::optional<ArraySpec>>(x.t), ")");
}
void Unparse(const CommonStmt::Block &x) {
Word("/"), Walk(std::get<std::optional<Name>>(x.t)), Word("/");
Walk(std::get<std::list<CommonBlockObject>>(x.t));
}
void Unparse(const Substring &x) { // R908, R909
Walk(std::get<DataRef>(x.t));
Put('('), Walk(std::get<SubstringRange>(x.t)), Put(')');
}
void Unparse(const CharLiteralConstantSubstring &x) {
Walk(std::get<CharLiteralConstant>(x.t));
Put('('), Walk(std::get<SubstringRange>(x.t)), Put(')');
}
void Unparse(const SubstringRange &x) { // R910
Walk(x.t, ":");
}
void Unparse(const PartRef &x) { // R912
Walk(x.name);
Walk("(", x.subscripts, ",", ")");
Walk(x.imageSelector);
}
void Unparse(const StructureComponent &x) { // R913
Walk(x.base);
if (structureComponents_.find(x.component.source) !=
structureComponents_.end()) {
Put('.');
} else {
Put('%');
}
Walk(x.component);
}
void Unparse(const ArrayElement &x) { // R917
Walk(x.base);
Put('('), Walk(x.subscripts, ","), Put(')');
}
void Unparse(const SubscriptTriplet &x) { // R921
Walk(std::get<0>(x.t)), Put(':'), Walk(std::get<1>(x.t));
Walk(":", std::get<2>(x.t));
}
void Unparse(const ImageSelector &x) { // R924
Put('['), Walk(std::get<std::list<Cosubscript>>(x.t), ",");
Walk(",", std::get<std::list<ImageSelectorSpec>>(x.t), ","), Put(']');
}
void Before(const ImageSelectorSpec::Stat &) { // R926
Word("STAT=");
}
void Before(const ImageSelectorSpec::Team_Number &) { Word("TEAM_NUMBER="); }
void Before(const ImageSelectorSpec &x) {
if (std::holds_alternative<TeamValue>(x.u)) {
Word("TEAM=");
}
}
void Unparse(const AllocateStmt &x) { // R927
Word("ALLOCATE(");
Walk(std::get<std::optional<TypeSpec>>(x.t), "::");
Walk(std::get<std::list<Allocation>>(x.t), ", ");
Walk(", ", std::get<std::list<AllocOpt>>(x.t), ", "), Put(')');
}
void Before(const AllocOpt &x) { // R928, R931
std::visit(common::visitors{
[&](const AllocOpt::Mold &) { Word("MOLD="); },
[&](const AllocOpt::Source &) { Word("SOURCE="); },
[](const StatOrErrmsg &) {},
},
x.u);
}
void Unparse(const Allocation &x) { // R932
Walk(std::get<AllocateObject>(x.t));
Walk("(", std::get<std::list<AllocateShapeSpec>>(x.t), ",", ")");
Walk("[", std::get<std::optional<AllocateCoarraySpec>>(x.t), "]");
}
void Unparse(const AllocateShapeSpec &x) { // R934 & R938
Walk(std::get<std::optional<BoundExpr>>(x.t), ":");
Walk(std::get<BoundExpr>(x.t));
}
void Unparse(const AllocateCoarraySpec &x) { // R937
Walk(std::get<std::list<AllocateCoshapeSpec>>(x.t), ",", ",");
Walk(std::get<std::optional<BoundExpr>>(x.t), ":"), Put('*');
}
void Unparse(const NullifyStmt &x) { // R939
Word("NULLIFY("), Walk(x.v, ", "), Put(')');
}
void Unparse(const DeallocateStmt &x) { // R941
Word("DEALLOCATE(");
Walk(std::get<std::list<AllocateObject>>(x.t), ", ");
Walk(", ", std::get<std::list<StatOrErrmsg>>(x.t), ", "), Put(')');
}
void Before(const StatOrErrmsg &x) { // R942 & R1165
std::visit(common::visitors{
[&](const StatVariable &) { Word("STAT="); },
[&](const MsgVariable &) { Word("ERRMSG="); },
},
x.u);
}
// R1001 - R1022
bool Pre(const Expr &x) {
if (asFortran_ && x.typedExpr) {
// Format the expression representation from semantics
asFortran_->expr(out_, *x.typedExpr);
return false;
} else {
return true;
}
}
void Unparse(const Expr::Parentheses &x) { Put('('), Walk(x.v), Put(')'); }
void Before(const Expr::UnaryPlus &) { Put("+"); }
void Before(const Expr::Negate &) { Put("-"); }
void Before(const Expr::NOT &) { Word(".NOT."); }
void Unparse(const Expr::PercentLoc &x) {
Word("%LOC("), Walk(x.v), Put(')');
}
void Unparse(const Expr::Power &x) { Walk(x.t, "**"); }
void Unparse(const Expr::Multiply &x) { Walk(x.t, "*"); }
void Unparse(const Expr::Divide &x) { Walk(x.t, "/"); }
void Unparse(const Expr::Add &x) { Walk(x.t, "+"); }
void Unparse(const Expr::Subtract &x) { Walk(x.t, "-"); }
void Unparse(const Expr::Concat &x) { Walk(x.t, "//"); }
void Unparse(const Expr::LT &x) { Walk(x.t, "<"); }
void Unparse(const Expr::LE &x) { Walk(x.t, "<="); }
void Unparse(const Expr::EQ &x) { Walk(x.t, "=="); }
void Unparse(const Expr::NE &x) { Walk(x.t, "/="); }
void Unparse(const Expr::GE &x) { Walk(x.t, ">="); }
void Unparse(const Expr::GT &x) { Walk(x.t, ">"); }
void Unparse(const Expr::AND &x) { Walk(x.t, ".AND."); }
void Unparse(const Expr::OR &x) { Walk(x.t, ".OR."); }
void Unparse(const Expr::EQV &x) { Walk(x.t, ".EQV."); }
void Unparse(const Expr::NEQV &x) { Walk(x.t, ".NEQV."); }
void Unparse(const Expr::ComplexConstructor &x) {
Put('('), Walk(x.t, ","), Put(')');
}
void Unparse(const Expr::DefinedBinary &x) {
Walk(std::get<1>(x.t)); // left
Walk(std::get<DefinedOpName>(x.t));
Walk(std::get<2>(x.t)); // right
}
void Unparse(const DefinedOpName &x) { // R1003, R1023, R1414, & R1415
Walk(x.v);
}
void Unparse(const AssignmentStmt &x) { // R1032
if (asFortran_ && x.typedAssignment.get()) {
Put(' ');
asFortran_->assignment(out_, *x.typedAssignment);
Put('\n');
} else {
Walk(x.t, " = ");
}
}
void Unparse(const PointerAssignmentStmt &x) { // R1033, R1034, R1038
if (asFortran_ && x.typedAssignment.get()) {
Put(' ');
asFortran_->assignment(out_, *x.typedAssignment);
Put('\n');
} else {
Walk(std::get<DataRef>(x.t));
std::visit(
common::visitors{
[&](const std::list<BoundsRemapping> &y) {
Put('('), Walk(y), Put(')');
},
[&](const std::list<BoundsSpec> &y) { Walk("(", y, ", ", ")"); },
},
std::get<PointerAssignmentStmt::Bounds>(x.t).u);
Put(" => "), Walk(std::get<Expr>(x.t));
}
}
void Post(const BoundsSpec &) { // R1035
Put(':');
}
void Unparse(const BoundsRemapping &x) { // R1036
Walk(x.t, ":");
}
void Unparse(const WhereStmt &x) { // R1041, R1045, R1046
Word("WHERE ("), Walk(x.t, ") ");
}
void Unparse(const WhereConstructStmt &x) { // R1043
Walk(std::get<std::optional<Name>>(x.t), ": ");
Word("WHERE ("), Walk(std::get<LogicalExpr>(x.t)), Put(')');
Indent();
}
void Unparse(const MaskedElsewhereStmt &x) { // R1047
Outdent();
Word("ELSEWHERE ("), Walk(std::get<LogicalExpr>(x.t)), Put(')');
Walk(" ", std::get<std::optional<Name>>(x.t));
Indent();
}
void Unparse(const ElsewhereStmt &x) { // R1048
Outdent(), Word("ELSEWHERE"), Walk(" ", x.v), Indent();
}
void Unparse(const EndWhereStmt &x) { // R1049
Outdent(), Word("END WHERE"), Walk(" ", x.v);
}
void Unparse(const ForallConstructStmt &x) { // R1051
Walk(std::get<std::optional<Name>>(x.t), ": ");
Word("FORALL"), Walk(std::get<common::Indirection<ConcurrentHeader>>(x.t));
Indent();
}
void Unparse(const EndForallStmt &x) { // R1054
Outdent(), Word("END FORALL"), Walk(" ", x.v);
}
void Before(const ForallStmt &) { // R1055
Word("FORALL");
}
void Unparse(const AssociateStmt &x) { // R1103
Walk(std::get<std::optional<Name>>(x.t), ": ");
Word("ASSOCIATE (");
Walk(std::get<std::list<Association>>(x.t), ", "), Put(')'), Indent();
}
void Unparse(const Association &x) { // R1104
Walk(x.t, " => ");
}
void Unparse(const EndAssociateStmt &x) { // R1106
Outdent(), Word("END ASSOCIATE"), Walk(" ", x.v);
}
void Unparse(const BlockStmt &x) { // R1108
Walk(x.v, ": "), Word("BLOCK"), Indent();
}
void Unparse(const EndBlockStmt &x) { // R1110
Outdent(), Word("END BLOCK"), Walk(" ", x.v);
}
void Unparse(const ChangeTeamStmt &x) { // R1112
Walk(std::get<std::optional<Name>>(x.t), ": ");
Word("CHANGE TEAM ("), Walk(std::get<TeamValue>(x.t));
Walk(", ", std::get<std::list<CoarrayAssociation>>(x.t), ", ");
Walk(", ", std::get<std::list<StatOrErrmsg>>(x.t), ", "), Put(')');
Indent();
}
void Unparse(const CoarrayAssociation &x) { // R1113
Walk(x.t, " => ");
}
void Unparse(const EndChangeTeamStmt &x) { // R1114
Outdent(), Word("END TEAM (");
Walk(std::get<std::list<StatOrErrmsg>>(x.t), ", ");
Put(')'), Walk(" ", std::get<std::optional<Name>>(x.t));
}
void Unparse(const CriticalStmt &x) { // R1117
Walk(std::get<std::optional<Name>>(x.t), ": ");
Word("CRITICAL ("), Walk(std::get<std::list<StatOrErrmsg>>(x.t), ", ");
Put(')'), Indent();
}
void Unparse(const EndCriticalStmt &x) { // R1118
Outdent(), Word("END CRITICAL"), Walk(" ", x.v);
}
void Unparse(const DoConstruct &x) { // R1119, R1120
Walk(std::get<Statement<NonLabelDoStmt>>(x.t));
Indent(), Walk(std::get<Block>(x.t), ""), Outdent();
Walk(std::get<Statement<EndDoStmt>>(x.t));
}
void Unparse(const LabelDoStmt &x) { // R1121
Walk(std::get<std::optional<Name>>(x.t), ": ");
Word("DO "), Walk(std::get<Label>(x.t));
Walk(" ", std::get<std::optional<LoopControl>>(x.t));
}
void Unparse(const NonLabelDoStmt &x) { // R1122
Walk(std::get<std::optional<Name>>(x.t), ": ");
Word("DO "), Walk(std::get<std::optional<LoopControl>>(x.t));
}
void Unparse(const LoopControl &x) { // R1123
std::visit(common::visitors{
[&](const ScalarLogicalExpr &y) {
Word("WHILE ("), Walk(y), Put(')');
},
[&](const auto &y) { Walk(y); },
},
x.u);
}
void Unparse(const ConcurrentHeader &x) { // R1125
Put('('), Walk(std::get<std::optional<IntegerTypeSpec>>(x.t), "::");
Walk(std::get<std::list<ConcurrentControl>>(x.t), ", ");
Walk(", ", std::get<std::optional<ScalarLogicalExpr>>(x.t)), Put(')');
}
void Unparse(const ConcurrentControl &x) { // R1126 - R1128
Walk(std::get<Name>(x.t)), Put('='), Walk(std::get<1>(x.t));
Put(':'), Walk(std::get<2>(x.t));
Walk(":", std::get<std::optional<ScalarIntExpr>>(x.t));
}
void Before(const LoopControl::Concurrent &) { // R1129
Word("CONCURRENT");
}
void Unparse(const LocalitySpec::Local &x) {
Word("LOCAL("), Walk(x.v, ", "), Put(')');
}
void Unparse(const LocalitySpec::LocalInit &x) {
Word("LOCAL_INIT("), Walk(x.v, ", "), Put(')');
}
void Unparse(const LocalitySpec::Shared &x) {
Word("SHARED("), Walk(x.v, ", "), Put(')');
}
void Post(const LocalitySpec::DefaultNone &) { Word("DEFAULT(NONE)"); }
void Unparse(const EndDoStmt &x) { // R1132
Word("END DO"), Walk(" ", x.v);
}
void Unparse(const CycleStmt &x) { // R1133
Word("CYCLE"), Walk(" ", x.v);
}
void Unparse(const IfThenStmt &x) { // R1135
Walk(std::get<std::optional<Name>>(x.t), ": ");
Word("IF ("), Walk(std::get<ScalarLogicalExpr>(x.t));
Put(") "), Word("THEN"), Indent();
}
void Unparse(const ElseIfStmt &x) { // R1136
Outdent(), Word("ELSE IF (");
Walk(std::get<ScalarLogicalExpr>(x.t)), Put(") "), Word("THEN");
Walk(" ", std::get<std::optional<Name>>(x.t)), Indent();
}
void Unparse(const ElseStmt &x) { // R1137
Outdent(), Word("ELSE"), Walk(" ", x.v), Indent();
}
void Unparse(const EndIfStmt &x) { // R1138
Outdent(), Word("END IF"), Walk(" ", x.v);
}
void Unparse(const IfStmt &x) { // R1139
Word("IF ("), Walk(x.t, ") ");
}
void Unparse(const SelectCaseStmt &x) { // R1141, R1144
Walk(std::get<std::optional<Name>>(x.t), ": ");
Word("SELECT CASE (");
Walk(std::get<Scalar<Expr>>(x.t)), Put(')'), Indent();
}
void Unparse(const CaseStmt &x) { // R1142
Outdent(), Word("CASE "), Walk(std::get<CaseSelector>(x.t));
Walk(" ", std::get<std::optional<Name>>(x.t)), Indent();
}
void Unparse(const EndSelectStmt &x) { // R1143 & R1151 & R1155
Outdent(), Word("END SELECT"), Walk(" ", x.v);
}
void Unparse(const CaseSelector &x) { // R1145
std::visit(common::visitors{
[&](const std::list<CaseValueRange> &y) {
Put('('), Walk(y), Put(')');
},
[&](const Default &) { Word("DEFAULT"); },
},
x.u);
}
void Unparse(const CaseValueRange::Range &x) { // R1146
Walk(x.lower), Put(':'), Walk(x.upper);
}
void Unparse(const SelectRankStmt &x) { // R1149
Walk(std::get<0>(x.t), ": ");
Word("SELECT RANK ("), Walk(std::get<1>(x.t), " => ");
Walk(std::get<Selector>(x.t)), Put(')'), Indent();
}
void Unparse(const SelectRankCaseStmt &x) { // R1150
Outdent(), Word("RANK ");
std::visit(common::visitors{
[&](const ScalarIntConstantExpr &y) {
Put('('), Walk(y), Put(')');
},
[&](const Star &) { Put("(*)"); },
[&](const Default &) { Word("DEFAULT"); },
},
std::get<SelectRankCaseStmt::Rank>(x.t).u);
Walk(" ", std::get<std::optional<Name>>(x.t)), Indent();
}
void Unparse(const SelectTypeStmt &x) { // R1153
Walk(std::get<0>(x.t), ": ");
Word("SELECT TYPE ("), Walk(std::get<1>(x.t), " => ");
Walk(std::get<Selector>(x.t)), Put(')'), Indent();
}
void Unparse(const TypeGuardStmt &x) { // R1154
Outdent(), Walk(std::get<TypeGuardStmt::Guard>(x.t));
Walk(" ", std::get<std::optional<Name>>(x.t)), Indent();
}
void Unparse(const TypeGuardStmt::Guard &x) {
std::visit(
common::visitors{
[&](const TypeSpec &y) { Word("TYPE IS ("), Walk(y), Put(')'); },
[&](const DerivedTypeSpec &y) {
Word("CLASS IS ("), Walk(y), Put(')');
},
[&](const Default &) { Word("CLASS DEFAULT"); },
},
x.u);
}
void Unparse(const ExitStmt &x) { // R1156
Word("EXIT"), Walk(" ", x.v);
}
void Before(const GotoStmt &) { // R1157
Word("GO TO ");
}
void Unparse(const ComputedGotoStmt &x) { // R1158
Word("GO TO ("), Walk(x.t, "), ");
}
void Unparse(const ContinueStmt &) { // R1159
Word("CONTINUE");
}
void Unparse(const StopStmt &x) { // R1160, R1161
if (std::get<StopStmt::Kind>(x.t) == StopStmt::Kind::ErrorStop) {
Word("ERROR ");
}
Word("STOP"), Walk(" ", std::get<std::optional<StopCode>>(x.t));
Walk(", QUIET=", std::get<std::optional<ScalarLogicalExpr>>(x.t));
}
void Unparse(const FailImageStmt &) { // R1163
Word("FAIL IMAGE");
}
void Unparse(const SyncAllStmt &x) { // R1164
Word("SYNC ALL ("), Walk(x.v, ", "), Put(')');
}
void Unparse(const SyncImagesStmt &x) { // R1166
Word("SYNC IMAGES (");
Walk(std::get<SyncImagesStmt::ImageSet>(x.t));
Walk(", ", std::get<std::list<StatOrErrmsg>>(x.t), ", "), Put(')');
}
void Unparse(const SyncMemoryStmt &x) { // R1168
Word("SYNC MEMORY ("), Walk(x.v, ", "), Put(')');
}
void Unparse(const SyncTeamStmt &x) { // R1169
Word("SYNC TEAM ("), Walk(std::get<TeamValue>(x.t));
Walk(", ", std::get<std::list<StatOrErrmsg>>(x.t), ", "), Put(')');
}
void Unparse(const EventPostStmt &x) { // R1170
Word("EVENT POST ("), Walk(std::get<EventVariable>(x.t));
Walk(", ", std::get<std::list<StatOrErrmsg>>(x.t), ", "), Put(')');
}
void Before(const EventWaitStmt::EventWaitSpec &x) { // R1173, R1174
std::visit(common::visitors{
[&](const ScalarIntExpr &) { Word("UNTIL_COUNT="); },
[](const StatOrErrmsg &) {},
},
x.u);
}
void Unparse(const EventWaitStmt &x) { // R1170
Word("EVENT WAIT ("), Walk(std::get<EventVariable>(x.t));
Walk(", ", std::get<std::list<EventWaitStmt::EventWaitSpec>>(x.t), ", ");
Put(')');
}
void Unparse(const FormTeamStmt &x) { // R1175, R1177
Word("FORM TEAM ("), Walk(std::get<ScalarIntExpr>(x.t));
Put(','), Walk(std::get<TeamVariable>(x.t));
Walk(", ", std::get<std::list<FormTeamStmt::FormTeamSpec>>(x.t), ", ");
Put(')');
}
void Before(const FormTeamStmt::FormTeamSpec &x) { // R1176, R1178
std::visit(common::visitors{
[&](const ScalarIntExpr &) { Word("NEW_INDEX="); },
[](const StatOrErrmsg &) {},
},
x.u);
}
void Unparse(const LockStmt &x) { // R1179
Word("LOCK ("), Walk(std::get<LockVariable>(x.t));
Walk(", ", std::get<std::list<LockStmt::LockStat>>(x.t), ", ");
Put(')');
}
void Before(const LockStmt::LockStat &x) { // R1180
std::visit(
common::visitors{
[&](const ScalarLogicalVariable &) { Word("ACQUIRED_LOCK="); },
[](const StatOrErrmsg &) {},
},
x.u);
}
void Unparse(const UnlockStmt &x) { // R1181
Word("UNLOCK ("), Walk(std::get<LockVariable>(x.t));
Walk(", ", std::get<std::list<StatOrErrmsg>>(x.t), ", ");
Put(')');
}
void Unparse(const OpenStmt &x) { // R1204
Word("OPEN ("), Walk(x.v, ", "), Put(')');
}
bool Pre(const ConnectSpec &x) { // R1205
return std::visit(common::visitors{
[&](const FileUnitNumber &) {
Word("UNIT=");
return true;
},
[&](const FileNameExpr &) {
Word("FILE=");
return true;
},
[&](const ConnectSpec::CharExpr &y) {
Walk(y.t, "=");
return false;
},
[&](const MsgVariable &) {
Word("IOMSG=");
return true;
},
[&](const StatVariable &) {
Word("IOSTAT=");
return true;
},
[&](const ConnectSpec::Recl &) {
Word("RECL=");
return true;
},
[&](const ConnectSpec::Newunit &) {
Word("NEWUNIT=");
return true;
},
[&](const ErrLabel &) {
Word("ERR=");
return true;
},
[&](const StatusExpr &) {
Word("STATUS=");
return true;
},
},
x.u);
}
void Unparse(const CloseStmt &x) { // R1208
Word("CLOSE ("), Walk(x.v, ", "), Put(')');
}
void Before(const CloseStmt::CloseSpec &x) { // R1209
std::visit(common::visitors{
[&](const FileUnitNumber &) { Word("UNIT="); },
[&](const StatVariable &) { Word("IOSTAT="); },
[&](const MsgVariable &) { Word("IOMSG="); },
[&](const ErrLabel &) { Word("ERR="); },
[&](const StatusExpr &) { Word("STATUS="); },
},
x.u);
}
void Unparse(const ReadStmt &x) { // R1210
Word("READ ");
if (x.iounit) {
Put('('), Walk(x.iounit);
if (x.format) {
Put(", "), Walk(x.format);
}
Walk(", ", x.controls, ", ");
Put(')');
} else if (x.format) {
Walk(x.format);
if (!x.items.empty()) {
Put(", ");
}
} else {
Put('('), Walk(x.controls, ", "), Put(')');
}
Walk(" ", x.items, ", ");
}
void Unparse(const WriteStmt &x) { // R1211
Word("WRITE (");
if (x.iounit) {
Walk(x.iounit);
if (x.format) {
Put(", "), Walk(x.format);
}
Walk(", ", x.controls, ", ");
} else {
Walk(x.controls, ", ");
}
Put(')'), Walk(" ", x.items, ", ");
}
void Unparse(const PrintStmt &x) { // R1212
Word("PRINT "), Walk(std::get<Format>(x.t));
Walk(", ", std::get<std::list<OutputItem>>(x.t), ", ");
}
bool Pre(const IoControlSpec &x) { // R1213
return std::visit(common::visitors{
[&](const IoUnit &) {
Word("UNIT=");
return true;
},
[&](const Format &) {
Word("FMT=");
return true;
},
[&](const Name &) {
Word("NML=");
return true;
},
[&](const IoControlSpec::CharExpr &y) {
Walk(y.t, "=");
return false;
},
[&](const IoControlSpec::Asynchronous &) {
Word("ASYNCHRONOUS=");
return true;
},
[&](const EndLabel &) {
Word("END=");
return true;
},
[&](const EorLabel &) {
Word("EOR=");
return true;
},
[&](const ErrLabel &) {
Word("ERR=");
return true;
},
[&](const IdVariable &) {
Word("ID=");
return true;
},
[&](const MsgVariable &) {
Word("IOMSG=");
return true;
},
[&](const StatVariable &) {
Word("IOSTAT=");
return true;
},
[&](const IoControlSpec::Pos &) {
Word("POS=");
return true;
},
[&](const IoControlSpec::Rec &) {
Word("REC=");
return true;
},
[&](const IoControlSpec::Size &) {
Word("SIZE=");
return true;
},
},
x.u);
}
void Unparse(const InputImpliedDo &x) { // R1218
Put('('), Walk(std::get<std::list<InputItem>>(x.t), ", "), Put(", ");
Walk(std::get<IoImpliedDoControl>(x.t)), Put(')');
}
void Unparse(const OutputImpliedDo &x) { // R1219
Put('('), Walk(std::get<std::list<OutputItem>>(x.t), ", "), Put(", ");
Walk(std::get<IoImpliedDoControl>(x.t)), Put(')');
}
void Unparse(const WaitStmt &x) { // R1222
Word("WAIT ("), Walk(x.v, ", "), Put(')');
}
void Before(const WaitSpec &x) { // R1223
std::visit(common::visitors{
[&](const FileUnitNumber &) { Word("UNIT="); },
[&](const EndLabel &) { Word("END="); },
[&](const EorLabel &) { Word("EOR="); },
[&](const ErrLabel &) { Word("ERR="); },
[&](const IdExpr &) { Word("ID="); },
[&](const MsgVariable &) { Word("IOMSG="); },
[&](const StatVariable &) { Word("IOSTAT="); },
},
x.u);
}
void Unparse(const BackspaceStmt &x) { // R1224
Word("BACKSPACE ("), Walk(x.v, ", "), Put(')');
}
void Unparse(const EndfileStmt &x) { // R1225
Word("ENDFILE ("), Walk(x.v, ", "), Put(')');
}
void Unparse(const RewindStmt &x) { // R1226
Word("REWIND ("), Walk(x.v, ", "), Put(')');
}
void Before(const PositionOrFlushSpec &x) { // R1227 & R1229
std::visit(common::visitors{
[&](const FileUnitNumber &) { Word("UNIT="); },
[&](const MsgVariable &) { Word("IOMSG="); },
[&](const StatVariable &) { Word("IOSTAT="); },
[&](const ErrLabel &) { Word("ERR="); },
},
x.u);
}
void Unparse(const FlushStmt &x) { // R1228
Word("FLUSH ("), Walk(x.v, ", "), Put(')');
}
void Unparse(const InquireStmt &x) { // R1230
Word("INQUIRE (");
std::visit(
common::visitors{
[&](const InquireStmt::Iolength &y) {
Word("IOLENGTH="), Walk(y.t, ") ");
},
[&](const std::list<InquireSpec> &y) { Walk(y, ", "), Put(')'); },
},
x.u);
}
bool Pre(const InquireSpec &x) { // R1231
return std::visit(common::visitors{
[&](const FileUnitNumber &) {
Word("UNIT=");
return true;
},
[&](const FileNameExpr &) {
Word("FILE=");
return true;
},
[&](const InquireSpec::CharVar &y) {
Walk(y.t, "=");
return false;
},
[&](const InquireSpec::IntVar &y) {
Walk(y.t, "=");
return false;
},
[&](const InquireSpec::LogVar &y) {
Walk(y.t, "=");
return false;
},
[&](const IdExpr &) {
Word("ID=");
return true;
},
[&](const ErrLabel &) {
Word("ERR=");
return true;
},
},
x.u);
}
void Before(const FormatStmt &) { // R1301
Word("FORMAT");
}
void Unparse(const format::FormatSpecification &x) { // R1302, R1303, R1305
Put('('), Walk("", x.items, ",", x.unlimitedItems.empty() ? "" : ",");
Walk("*(", x.unlimitedItems, ",", ")"), Put(')');
}
void Unparse(const format::FormatItem &x) { // R1304, R1306, R1321
if (x.repeatCount) {
Walk(*x.repeatCount);
}
std::visit(common::visitors{
[&](const std::string &y) { PutNormalized(y); },
[&](const std::list<format::FormatItem> &y) {
Walk("(", y, ",", ")");
},
[&](const auto &y) { Walk(y); },
},
x.u);
}
void Unparse(
const format::IntrinsicTypeDataEditDesc &x) { // R1307(1/2) - R1311
switch (x.kind) {
#define FMT(x) \
case format::IntrinsicTypeDataEditDesc::Kind::x: \
Put(#x); \
break
FMT(I);
FMT(B);
FMT(O);
FMT(Z);
FMT(F);
FMT(E);
FMT(EN);
FMT(ES);
FMT(EX);
FMT(G);
FMT(L);
FMT(A);
FMT(D);
#undef FMT
}
Walk(x.width), Walk(".", x.digits), Walk("E", x.exponentWidth);
}
void Unparse(const format::DerivedTypeDataEditDesc &x) { // R1307(2/2), R1312
Word("DT");
if (!x.type.empty()) {
Put('"'), Put(x.type), Put('"');
}
Walk("(", x.parameters, ",", ")");
}
void Unparse(const format::ControlEditDesc &x) { // R1313, R1315-R1320
switch (x.kind) {
case format::ControlEditDesc::Kind::T:
Word("T");
Walk(x.count);
break;
case format::ControlEditDesc::Kind::TL:
Word("TL");
Walk(x.count);
break;
case format::ControlEditDesc::Kind::TR:
Word("TR");
Walk(x.count);
break;
case format::ControlEditDesc::Kind::X:
if (x.count != 1) {
Walk(x.count);
}
Word("X");
break;
case format::ControlEditDesc::Kind::Slash:
if (x.count != 1) {
Walk(x.count);
}
Put('/');
break;
case format::ControlEditDesc::Kind::Colon:
Put(':');
break;
case format::ControlEditDesc::Kind::P:
Walk(x.count);
Word("P");
break;
#define FMT(x) \
case format::ControlEditDesc::Kind::x: \
Put(#x); \
break
FMT(SS);
FMT(SP);
FMT(S);
FMT(BN);
FMT(BZ);
FMT(RU);
FMT(RD);
FMT(RZ);
FMT(RN);
FMT(RC);
FMT(RP);
FMT(DC);
FMT(DP);
#undef FMT
case format::ControlEditDesc::Kind::Dollar:
Put('$');
break;
case format::ControlEditDesc::Kind::Backslash:
Put('\\');
break;
}
}
void Before(const MainProgram &x) { // R1401
if (!std::get<std::optional<Statement<ProgramStmt>>>(x.t)) {
Indent();
}
}
void Before(const ProgramStmt &) { // R1402
Word("PROGRAM "), Indent();
}
void Unparse(const EndProgramStmt &x) { // R1403
EndSubprogram("PROGRAM", x.v);
}
void Before(const ModuleStmt &) { // R1405
Word("MODULE "), Indent();
}
void Unparse(const EndModuleStmt &x) { // R1406
EndSubprogram("MODULE", x.v);
}
void Unparse(const UseStmt &x) { // R1409
Word("USE"), Walk(", ", x.nature), Put(" :: "), Walk(x.moduleName);
std::visit(common::visitors{
[&](const std::list<Rename> &y) { Walk(", ", y, ", "); },
[&](const std::list<Only> &y) { Walk(", ONLY: ", y, ", "); },
},
x.u);
}
void Unparse(const Rename &x) { // R1411
std::visit(common::visitors{
[&](const Rename::Names &y) { Walk(y.t, " => "); },
[&](const Rename::Operators &y) {
Word("OPERATOR("), Walk(y.t, ") => OPERATOR("), Put(")");
},
},
x.u);
}
void Unparse(const SubmoduleStmt &x) { // R1417
Word("SUBMODULE ("), WalkTupleElements(x.t, ")"), Indent();
}
void Unparse(const ParentIdentifier &x) { // R1418
Walk(std::get<Name>(x.t)), Walk(":", std::get<std::optional<Name>>(x.t));
}
void Unparse(const EndSubmoduleStmt &x) { // R1419
EndSubprogram("SUBMODULE", x.v);
}
void Unparse(const BlockDataStmt &x) { // R1421
Word("BLOCK DATA"), Walk(" ", x.v), Indent();
}
void Unparse(const EndBlockDataStmt &x) { // R1422
EndSubprogram("BLOCK DATA", x.v);
}
void Unparse(const InterfaceStmt &x) { // R1503
std::visit(common::visitors{
[&](const std::optional<GenericSpec> &y) {
Word("INTERFACE"), Walk(" ", y);
},
[&](const Abstract &) { Word("ABSTRACT INTERFACE"); },
},
x.u);
Indent();
}
void Unparse(const EndInterfaceStmt &x) { // R1504
Outdent(), Word("END INTERFACE"), Walk(" ", x.v);
}
void Unparse(const ProcedureStmt &x) { // R1506
if (std::get<ProcedureStmt::Kind>(x.t) ==
ProcedureStmt::Kind::ModuleProcedure) {
Word("MODULE ");
}
Word("PROCEDURE :: ");
Walk(std::get<std::list<Name>>(x.t), ", ");
}
void Before(const GenericSpec &x) { // R1508, R1509
std::visit(
common::visitors{
[&](const DefinedOperator &) { Word("OPERATOR("); },
[&](const GenericSpec::Assignment &) { Word("ASSIGNMENT(=)"); },
[&](const GenericSpec::ReadFormatted &) {
Word("READ(FORMATTED)");
},
[&](const GenericSpec::ReadUnformatted &) {
Word("READ(UNFORMATTED)");
},
[&](const GenericSpec::WriteFormatted &) {
Word("WRITE(FORMATTED)");
},
[&](const GenericSpec::WriteUnformatted &) {
Word("WRITE(UNFORMATTED)");
},
[](const auto &) {},
},
x.u);
}
void Post(const GenericSpec &x) {
std::visit(common::visitors{
[&](const DefinedOperator &) { Put(')'); },
[](const auto &) {},
},
x.u);
}
void Unparse(const GenericStmt &x) { // R1510
Word("GENERIC"), Walk(", ", std::get<std::optional<AccessSpec>>(x.t));
Put(" :: "), Walk(std::get<GenericSpec>(x.t)), Put(" => ");
Walk(std::get<std::list<Name>>(x.t), ", ");
}
void Unparse(const ExternalStmt &x) { // R1511
Word("EXTERNAL :: "), Walk(x.v, ", ");
}
void Unparse(const ProcedureDeclarationStmt &x) { // R1512
Word("PROCEDURE("), Walk(std::get<std::optional<ProcInterface>>(x.t));
Put(')'), Walk(", ", std::get<std::list<ProcAttrSpec>>(x.t), ", ");
Put(" :: "), Walk(std::get<std::list<ProcDecl>>(x.t), ", ");
}
void Unparse(const ProcDecl &x) { // R1515
Walk(std::get<Name>(x.t));
Walk(" => ", std::get<std::optional<ProcPointerInit>>(x.t));
}
void Unparse(const IntrinsicStmt &x) { // R1519
Word("INTRINSIC :: "), Walk(x.v, ", ");
}
void Unparse(const FunctionReference &x) { // R1520
Walk(std::get<ProcedureDesignator>(x.v.t));
Put('('), Walk(std::get<std::list<ActualArgSpec>>(x.v.t), ", "), Put(')');
}
void Unparse(const CallStmt &x) { // R1521
if (asFortran_ && x.typedCall.get()) {
Put(' ');
asFortran_->call(out_, *x.typedCall);
Put('\n');
} else {
const auto &pd{std::get<ProcedureDesignator>(x.v.t)};
const auto &args{std::get<std::list<ActualArgSpec>>(x.v.t)};
Word("CALL "), Walk(pd);
if (args.empty()) {
if (std::holds_alternative<ProcComponentRef>(pd.u)) {
Put("()"); // pgf90 crashes on CALL to tbp without parentheses
}
} else {
Walk("(", args, ", ", ")");
}
}
}
void Unparse(const ActualArgSpec &x) { // R1523
Walk(std::get<std::optional<Keyword>>(x.t), "=");
Walk(std::get<ActualArg>(x.t));
}
void Unparse(const ActualArg::PercentRef &x) { // R1524
Word("%REF("), Walk(x.v), Put(')');
}
void Unparse(const ActualArg::PercentVal &x) {
Word("%VAL("), Walk(x.v), Put(')');
}
void Before(const AltReturnSpec &) { // R1525
Put('*');
}
void Post(const PrefixSpec::Elemental) { Word("ELEMENTAL"); } // R1527
void Post(const PrefixSpec::Impure) { Word("IMPURE"); }
void Post(const PrefixSpec::Module) { Word("MODULE"); }
void Post(const PrefixSpec::Non_Recursive) { Word("NON_RECURSIVE"); }
void Post(const PrefixSpec::Pure) { Word("PURE"); }
void Post(const PrefixSpec::Recursive) { Word("RECURSIVE"); }
void Unparse(const FunctionStmt &x) { // R1530
Walk("", std::get<std::list<PrefixSpec>>(x.t), " ", " ");
Word("FUNCTION "), Walk(std::get<Name>(x.t)), Put("(");
Walk(std::get<std::list<Name>>(x.t), ", "), Put(')');
Walk(" ", std::get<std::optional<Suffix>>(x.t)), Indent();
}
void Unparse(const Suffix &x) { // R1532
if (x.resultName) {
Word("RESULT("), Walk(x.resultName), Put(')');
Walk(" ", x.binding);
} else {
Walk(x.binding);
}
}
void Unparse(const EndFunctionStmt &x) { // R1533
EndSubprogram("FUNCTION", x.v);
}
void Unparse(const SubroutineStmt &x) { // R1535
Walk("", std::get<std::list<PrefixSpec>>(x.t), " ", " ");
Word("SUBROUTINE "), Walk(std::get<Name>(x.t));
const auto &args{std::get<std::list<DummyArg>>(x.t)};
const auto &bind{std::get<std::optional<LanguageBindingSpec>>(x.t)};
if (args.empty()) {
Walk(" () ", bind);
} else {
Walk(" (", args, ", ", ")");
Walk(" ", bind);
}
Indent();
}
void Unparse(const EndSubroutineStmt &x) { // R1537
EndSubprogram("SUBROUTINE", x.v);
}
void Before(const MpSubprogramStmt &) { // R1539
Word("MODULE PROCEDURE "), Indent();
}
void Unparse(const EndMpSubprogramStmt &x) { // R1540
EndSubprogram("PROCEDURE", x.v);
}
void Unparse(const EntryStmt &x) { // R1541
Word("ENTRY "), Walk(std::get<Name>(x.t)), Put("(");
Walk(std::get<std::list<DummyArg>>(x.t), ", "), Put(")");
Walk(" ", std::get<std::optional<Suffix>>(x.t));
}
void Unparse(const ReturnStmt &x) { // R1542
Word("RETURN"), Walk(" ", x.v);
}
void Unparse(const ContainsStmt &) { // R1543
Outdent();
Word("CONTAINS");
Indent();
}
void Unparse(const StmtFunctionStmt &x) { // R1544
Walk(std::get<Name>(x.t)), Put('(');
Walk(std::get<std::list<Name>>(x.t), ", "), Put(") = ");
Walk(std::get<Scalar<Expr>>(x.t));
}
// Directives, extensions, and deprecated constructs
void Unparse(const CompilerDirective &x) {
std::visit(
common::visitors{
[&](const std::list<CompilerDirective::IgnoreTKR> &tkr) {
Word("!DIR$ IGNORE_TKR"); // emitted even if tkr list is empty
Walk(" ", tkr, ", ");
},
[&](const std::list<CompilerDirective::NameValue> &names) {
Walk("!DIR$ ", names, " ");
},
},
x.u);
Put('\n');
}
void Unparse(const CompilerDirective::IgnoreTKR &x) {
const auto &list{std::get<std::list<const char *>>(x.t)};
if (!list.empty()) {
Put("(");
for (const char *tkr : list) {
Put(*tkr);
}
Put(") ");
}
Walk(std::get<Name>(x.t));
}
void Unparse(const CompilerDirective::NameValue &x) {
Walk(std::get<Name>(x.t));
Walk("=", std::get<std::optional<std::uint64_t>>(x.t));
}
// OpenACC Directives & Clauses
void Unparse(const AccAtomicCapture &x) {
BeginOpenACC();
Word("!$ACC CAPTURE");
Put("\n");
EndOpenACC();
Walk(std::get<AccAtomicCapture::Stmt1>(x.t));
Put("\n");
Walk(std::get<AccAtomicCapture::Stmt2>(x.t));
BeginOpenACC();
Word("!$ACC END ATOMIC\n");
EndOpenACC();
}
void Unparse(const AccAtomicRead &x) {
BeginOpenACC();
Word("!$ACC ATOMIC READ");
Put("\n");
EndOpenACC();
Walk(std::get<Statement<AssignmentStmt>>(x.t));
BeginOpenACC();
Walk(std::get<std::optional<AccEndAtomic>>(x.t), "!$ACC END ATOMIC\n");
EndOpenACC();
}
void Unparse(const AccAtomicWrite &x) {
BeginOpenACC();
Word("!$ACC ATOMIC WRITE");
Put("\n");
EndOpenACC();
Walk(std::get<Statement<AssignmentStmt>>(x.t));
BeginOpenACC();
Walk(std::get<std::optional<AccEndAtomic>>(x.t), "!$ACC END ATOMIC\n");
EndOpenACC();
}
void Unparse(const AccAtomicUpdate &x) {
BeginOpenACC();
Word("!$ACC ATOMIC UPDATE");
Put("\n");
EndOpenACC();
Walk(std::get<Statement<AssignmentStmt>>(x.t));
BeginOpenACC();
Walk(std::get<std::optional<AccEndAtomic>>(x.t), "!$ACC END ATOMIC\n");
EndOpenACC();
}
void Unparse(const llvm::acc::Directive &x) {
Word(llvm::acc::getOpenACCDirectiveName(x).str());
}
#define GEN_FLANG_CLAUSE_UNPARSE
#include "llvm/Frontend/OpenACC/ACC.inc"
void Unparse(const AccObjectListWithModifier &x) {
Walk(std::get<std::optional<AccDataModifier>>(x.t), ":");
Walk(std::get<AccObjectList>(x.t));
}
void Unparse(const AccDataModifier::Modifier &x) {
Word(AccDataModifier::EnumToString(x));
}
void Unparse(const AccBindClause &x) {
std::visit(common::visitors{
[&](const Name &y) { Put('('), Walk(y), Put(')'); },
[&](const ScalarDefaultCharExpr &y) {
Put('('), Walk(y), Put(')');
},
},
x.u);
}
void Unparse(const AccDefaultClause &x) {
switch (x.v) {
case llvm::acc::DefaultValue::ACC_Default_none:
Put("NONE");
break;
case llvm::acc::DefaultValue::ACC_Default_present:
Put("PRESENT");
break;
}
}
void Unparse(const AccClauseList &x) { Walk(" ", x.v, " "); }
void Unparse(const AccGangArgument &x) {
Walk("NUM:", std::get<std::optional<ScalarIntExpr>>(x.t));
Walk(", STATIC:", std::get<std::optional<AccSizeExpr>>(x.t));
}
void Unparse(const OpenACCBlockConstruct &x) {
BeginOpenACC();
Word("!$ACC ");
Walk(std::get<AccBeginBlockDirective>(x.t));
Put("\n");
EndOpenACC();
Walk(std::get<Block>(x.t), "");
BeginOpenACC();
Word("!$ACC END ");
Walk(std::get<AccEndBlockDirective>(x.t));
Put("\n");
EndOpenACC();
}
void Unparse(const OpenACCLoopConstruct &x) {
BeginOpenACC();
Word("!$ACC ");
Walk(std::get<AccBeginLoopDirective>(x.t));
Put("\n");
EndOpenACC();
Walk(std::get<std::optional<DoConstruct>>(x.t));
}
void Unparse(const AccBeginLoopDirective &x) {
Walk(std::get<AccLoopDirective>(x.t));
Walk(std::get<AccClauseList>(x.t));
}
void Unparse(const OpenACCStandaloneConstruct &x) {
BeginOpenACC();
Word("!$ACC ");
Walk(std::get<AccStandaloneDirective>(x.t));
Walk(std::get<AccClauseList>(x.t));
Put("\n");
EndOpenACC();
}
void Unparse(const OpenACCStandaloneDeclarativeConstruct &x) {
BeginOpenACC();
Word("!$ACC ");
Walk(std::get<AccDeclarativeDirective>(x.t));
Walk(std::get<AccClauseList>(x.t));
Put("\n");
EndOpenACC();
}
void Unparse(const OpenACCCombinedConstruct &x) {
BeginOpenACC();
Word("!$ACC ");
Walk(std::get<AccBeginCombinedDirective>(x.t));
Put("\n");
EndOpenACC();
Walk(std::get<std::optional<DoConstruct>>(x.t));
BeginOpenACC();
Walk("!$ACC END ", std::get<std::optional<AccEndCombinedDirective>>(x.t),
"\n");
EndOpenACC();
}
void Unparse(const OpenACCRoutineConstruct &x) {
BeginOpenACC();
Word("!$ACC ROUTINE");
Walk("(", std::get<std::optional<Name>>(x.t), ")");
Walk(std::get<AccClauseList>(x.t));
Put("\n");
EndOpenACC();
}
void Unparse(const AccObject &x) {
std::visit(common::visitors{
[&](const Designator &y) { Walk(y); },
[&](const Name &y) { Put("/"), Walk(y), Put("/"); },
},
x.u);
}
void Unparse(const AccObjectList &x) { Walk(x.v, ","); }
void Unparse(const AccReductionOperator::Operator &x) {
Word(AccReductionOperator::EnumToString(x));
}
void Unparse(const AccObjectListWithReduction &x) {
Walk(std::get<AccReductionOperator>(x.t));
Put(":");
Walk(std::get<AccObjectList>(x.t));
}
void Unparse(const OpenACCCacheConstruct &x) {
BeginOpenACC();
Word("!$ACC ");
Word("CACHE(");
Walk(std::get<AccObjectListWithModifier>(x.t));
Put(")");
Put("\n");
EndOpenACC();
}
void Unparse(const AccWaitArgument &x) {
Walk("DEVNUM:", std::get<std::optional<ScalarIntExpr>>(x.t), ":");
Walk(std::get<std::list<ScalarIntExpr>>(x.t), ",");
}
void Unparse(const OpenACCWaitConstruct &x) {
BeginOpenACC();
Word("!$ACC ");
Word("WAIT(");
Walk(std::get<std::optional<AccWaitArgument>>(x.t));
Walk(std::get<AccClauseList>(x.t));
Put(")");
Put("\n");
EndOpenACC();
}
// OpenMP Clauses & Directives
void Unparse(const OmpObject &x) {
std::visit(common::visitors{
[&](const Designator &y) { Walk(y); },
[&](const Name &y) { Put("/"), Walk(y), Put("/"); },
},
x.u);
}
void Unparse(const OmpMapType::Always &) { Word("ALWAYS,"); }
void Unparse(const OmpMapClause &x) {
Walk(std::get<std::optional<OmpMapType>>(x.t), ":");
Walk(std::get<OmpObjectList>(x.t));
}
void Unparse(const OmpScheduleModifier &x) {
Walk(std::get<OmpScheduleModifier::Modifier1>(x.t));
Walk(",", std::get<std::optional<OmpScheduleModifier::Modifier2>>(x.t));
}
void Unparse(const OmpScheduleClause &x) {
Walk(std::get<std::optional<OmpScheduleModifier>>(x.t), ":");
Walk(std::get<OmpScheduleClause::ScheduleType>(x.t));
Walk(",", std::get<std::optional<ScalarIntExpr>>(x.t));
}
void Unparse(const OmpAlignedClause &x) {
Walk(std::get<std::list<Name>>(x.t), ",");
Walk(std::get<std::optional<ScalarIntConstantExpr>>(x.t));
}
void Unparse(const OmpIfClause &x) {
Walk(std::get<std::optional<OmpIfClause::DirectiveNameModifier>>(x.t), ":");
Walk(std::get<ScalarLogicalExpr>(x.t));
}
void Unparse(const OmpLinearClause::WithoutModifier &x) {
Walk(x.names, ", ");
Walk(":", x.step);
}
void Unparse(const OmpLinearClause::WithModifier &x) {
Walk(x.modifier), Put("("), Walk(x.names, ","), Put(")");
Walk(":", x.step);
}
void Unparse(const OmpReductionClause &x) {
Walk(std::get<OmpReductionOperator>(x.t));
Put(":");
Walk(std::get<OmpObjectList>(x.t));
}
void Unparse(const OmpAllocateClause &x) {
Walk(std::get<std::optional<OmpAllocateClause::Allocator>>(x.t));
Put(":");
Walk(std::get<OmpObjectList>(x.t));
}
void Unparse(const OmpDependSinkVecLength &x) {
Walk(std::get<DefinedOperator>(x.t));
Walk(std::get<ScalarIntConstantExpr>(x.t));
}
void Unparse(const OmpDependSinkVec &x) {
Walk(std::get<Name>(x.t));
Walk(std::get<std::optional<OmpDependSinkVecLength>>(x.t));
}
void Unparse(const OmpDependClause::InOut &x) {
Put("(");
Walk(std::get<OmpDependenceType>(x.t));
Put(":");
Walk(std::get<std::list<Designator>>(x.t), ",");
Put(")");
}
bool Pre(const OmpDependClause &x) {
return std::visit(common::visitors{
[&](const OmpDependClause::Source &) {
Word("SOURCE");
return false;
},
[&](const OmpDependClause::Sink &y) {
Word("SINK:");
Walk(y.v);
Put(")");
return false;
},
[&](const OmpDependClause::InOut &) { return true; },
},
x.u);
}
void Unparse(const OmpDefaultmapClause &x) {
Walk(std::get<OmpDefaultmapClause::ImplicitBehavior>(x.t));
Walk(":",
std::get<std::optional<OmpDefaultmapClause::VariableCategory>>(x.t));
}
#define GEN_FLANG_CLAUSE_UNPARSE
#include "llvm/Frontend/OpenMP/OMP.inc"
void Unparse(const OmpLoopDirective &x) {
switch (x.v) {
case llvm::omp::Directive::OMPD_distribute:
Word("DISTRIBUTE ");
break;
case llvm::omp::Directive::OMPD_distribute_parallel_do:
Word("DISTRIBUTE PARALLEL DO ");
break;
case llvm::omp::Directive::OMPD_distribute_parallel_do_simd:
Word("DISTRIBUTE PARALLEL DO SIMD ");
break;
case llvm::omp::Directive::OMPD_distribute_simd:
Word("DISTRIBUTE SIMD ");
break;
case llvm::omp::Directive::OMPD_do:
Word("DO ");
break;
case llvm::omp::Directive::OMPD_do_simd:
Word("DO SIMD ");
break;
case llvm::omp::Directive::OMPD_parallel_do:
Word("PARALLEL DO ");
break;
case llvm::omp::Directive::OMPD_parallel_do_simd:
Word("PARALLEL DO SIMD ");
break;
case llvm::omp::Directive::OMPD_simd:
Word("SIMD ");
break;
case llvm::omp::Directive::OMPD_target_parallel_do:
Word("TARGET PARALLEL DO ");
break;
case llvm::omp::Directive::OMPD_target_parallel_do_simd:
Word("TARGET PARALLEL DO SIMD ");
break;
case llvm::omp::Directive::OMPD_target_teams_distribute:
Word("TARGET TEAMS DISTRIBUTE ");
break;
case llvm::omp::Directive::OMPD_target_teams_distribute_parallel_do:
Word("TARGET TEAMS DISTRIBUTE PARALLEL DO ");
break;
case llvm::omp::Directive::OMPD_target_teams_distribute_parallel_do_simd:
Word("TARGET TEAMS DISTRIBUTE PARALLEL DO SIMD ");
break;
case llvm::omp::Directive::OMPD_target_teams_distribute_simd:
Word("TARGET TEAMS DISTRIBUTE SIMD ");
break;
case llvm::omp::Directive::OMPD_target_simd:
Word("TARGET SIMD ");
break;
case llvm::omp::Directive::OMPD_taskloop:
Word("TASKLOOP ");
break;
case llvm::omp::Directive::OMPD_taskloop_simd:
Word("TASKLOOP SIMD ");
break;
case llvm::omp::Directive::OMPD_teams_distribute:
Word("TEAMS DISTRIBUTE ");
break;
case llvm::omp::Directive::OMPD_teams_distribute_parallel_do:
Word("TEAMS DISTRIBUTE PARALLEL DO ");
break;
case llvm::omp::Directive::OMPD_teams_distribute_parallel_do_simd:
Word("TEAMS DISTRIBUTE PARALLEL DO SIMD ");
break;
case llvm::omp::Directive::OMPD_teams_distribute_simd:
Word("TEAMS DISTRIBUTE SIMD ");
break;
default:
break;
}
}
void Unparse(const OmpObjectList &x) { Walk(x.v, ","); }
void Unparse(const OmpSimpleStandaloneDirective &x) {
switch (x.v) {
case llvm::omp::Directive::OMPD_barrier:
Word("BARRIER ");
break;
case llvm::omp::Directive::OMPD_taskwait:
Word("TASKWAIT ");
break;
case llvm::omp::Directive::OMPD_taskyield:
Word("TASKYIELD ");
break;
case llvm::omp::Directive::OMPD_target_enter_data:
Word("TARGET ENTER DATA ");
break;
case llvm::omp::Directive::OMPD_target_exit_data:
Word("TARGET EXIT DATA ");
break;
case llvm::omp::Directive::OMPD_target_update:
Word("TARGET UPDATE ");
break;
case llvm::omp::Directive::OMPD_ordered:
Word("ORDERED ");
break;
default:
// Nothing to be done
break;
}
}
void Unparse(const OmpBlockDirective &x) {
switch (x.v) {
case llvm::omp::Directive::OMPD_master:
Word("MASTER");
break;
case llvm::omp::Directive::OMPD_ordered:
Word("ORDERED ");
break;
case llvm::omp::Directive::OMPD_parallel_workshare:
Word("PARALLEL WORKSHARE ");
break;
case llvm::omp::Directive::OMPD_parallel:
Word("PARALLEL ");
break;
case llvm::omp::Directive::OMPD_single:
Word("SINGLE ");
break;
case llvm::omp::Directive::OMPD_target_data:
Word("TARGET DATA ");
break;
case llvm::omp::Directive::OMPD_target_parallel:
Word("TARGET PARALLEL ");
break;
case llvm::omp::Directive::OMPD_target_teams:
Word("TARGET TEAMS ");
break;
case llvm::omp::Directive::OMPD_target:
Word("TARGET ");
break;
case llvm::omp::Directive::OMPD_taskgroup:
Word("TASKGROUP ");
break;
case llvm::omp::Directive::OMPD_task:
Word("TASK ");
break;
case llvm::omp::Directive::OMPD_teams:
Word("TEAMS ");
break;
case llvm::omp::Directive::OMPD_workshare:
Word("WORKSHARE ");
break;
default:
// Nothing to be done
break;
}
}
void Unparse(const OmpAtomicClauseList &x) { Walk(" ", x.v, " "); }
void Unparse(const OmpAtomic &x) {
BeginOpenMP();
Word("!$OMP ATOMIC");
Walk(std::get<OmpAtomicClauseList>(x.t));
Put("\n");
EndOpenMP();
Walk(std::get<Statement<AssignmentStmt>>(x.t));
BeginOpenMP();
Walk(std::get<std::optional<OmpEndAtomic>>(x.t), "!$OMP END ATOMIC\n");
EndOpenMP();
}
void Unparse(const OmpAtomicCapture &x) {
BeginOpenMP();
Word("!$OMP ATOMIC");
Walk(std::get<0>(x.t));
Word(" CAPTURE");
Walk(std::get<2>(x.t));
Put("\n");
EndOpenMP();
Walk(std::get<OmpAtomicCapture::Stmt1>(x.t));
Put("\n");
Walk(std::get<OmpAtomicCapture::Stmt2>(x.t));
BeginOpenMP();
Word("!$OMP END ATOMIC\n");
EndOpenMP();
}
void Unparse(const OmpAtomicRead &x) {
BeginOpenMP();
Word("!$OMP ATOMIC");
Walk(std::get<0>(x.t));
Word(" READ");
Walk(std::get<2>(x.t));
Put("\n");
EndOpenMP();
Walk(std::get<Statement<AssignmentStmt>>(x.t));
BeginOpenMP();
Walk(std::get<std::optional<OmpEndAtomic>>(x.t), "!$OMP END ATOMIC\n");
EndOpenMP();
}
void Unparse(const OmpAtomicUpdate &x) {
BeginOpenMP();
Word("!$OMP ATOMIC");
Walk(std::get<0>(x.t));
Word(" UPDATE");
Walk(std::get<2>(x.t));
Put("\n");
EndOpenMP();
Walk(std::get<Statement<AssignmentStmt>>(x.t));
BeginOpenMP();
Walk(std::get<std::optional<OmpEndAtomic>>(x.t), "!$OMP END ATOMIC\n");
EndOpenMP();
}
void Unparse(const OmpAtomicWrite &x) {
BeginOpenMP();
Word("!$OMP ATOMIC");
Walk(std::get<0>(x.t));
Word(" WRITE");
Walk(std::get<2>(x.t));
Put("\n");
EndOpenMP();
Walk(std::get<Statement<AssignmentStmt>>(x.t));
BeginOpenMP();
Walk(std::get<std::optional<OmpEndAtomic>>(x.t), "!$OMP END ATOMIC\n");
EndOpenMP();
}
void Unparse(const OpenMPExecutableAllocate &x) {
BeginOpenMP();
Word("!$OMP ALLOCATE");
Walk(" (", std::get<std::optional<OmpObjectList>>(x.t), ")");
Walk(std::get<OmpClauseList>(x.t));
Put("\n");
EndOpenMP();
Walk(std::get<Statement<AllocateStmt>>(x.t));
}
void Unparse(const OpenMPDeclarativeAllocate &x) {
BeginOpenMP();
Word("!$OMP ALLOCATE");
Put(" (");
Walk(std::get<OmpObjectList>(x.t));
Put(")");
Walk(std::get<OmpClauseList>(x.t));
Put("\n");
EndOpenMP();
}
void Unparse(const OmpCriticalDirective &x) {
BeginOpenMP();
Word("!$OMP CRITICAL");
Walk(" (", std::get<std::optional<Name>>(x.t), ")");
Walk(std::get<std::optional<OmpClause>>(x.t));
Put("\n");
EndOpenMP();
}
void Unparse(const OmpEndCriticalDirective &x) {
BeginOpenMP();
Word("!$OMP END CRITICAL");
Walk(" (", std::get<std::optional<Name>>(x.t), ")");
Put("\n");
EndOpenMP();
}
void Unparse(const OpenMPCriticalConstruct &x) {
Walk(std::get<OmpCriticalDirective>(x.t));
Walk(std::get<Block>(x.t), "");
Walk(std::get<OmpEndCriticalDirective>(x.t));
}
void Unparse(const OmpDeclareTargetWithList &x) {
Put("("), Walk(x.v), Put(")");
}
void Unparse(const OmpReductionInitializerClause &x) {
Word(" INITIALIZER(OMP_PRIV = ");
Walk(x.v);
Put(")");
}
void Unparse(const OmpReductionCombiner::FunctionCombiner &x) {
const auto &pd = std::get<ProcedureDesignator>(x.v.t);
const auto &args = std::get<std::list<ActualArgSpec>>(x.v.t);
Walk(pd);
if (args.empty()) {
if (std::holds_alternative<ProcComponentRef>(pd.u)) {
Put("()");
}
} else {
Walk("(", args, ", ", ")");
}
}
void Unparse(const OpenMPDeclareReductionConstruct &x) {
Put("(");
Walk(std::get<OmpReductionOperator>(x.t)), Put(" : ");
Walk(std::get<std::list<DeclarationTypeSpec>>(x.t), ","), Put(" : ");
Walk(std::get<OmpReductionCombiner>(x.t));
Put(")");
Walk(std::get<std::optional<OmpReductionInitializerClause>>(x.t));
}
bool Pre(const OpenMPDeclarativeConstruct &x) {
BeginOpenMP();
Word("!$OMP ");
return std::visit(common::visitors{
[&](const OpenMPDeclarativeAllocate &z) {
Word("ALLOCATE (");
Walk(std::get<OmpObjectList>(z.t));
Put(")");
Walk(std::get<OmpClauseList>(z.t));
Put("\n");
EndOpenMP();
return false;
},
[&](const OpenMPDeclareReductionConstruct &) {
Word("DECLARE REDUCTION ");
return true;
},
[&](const OpenMPDeclareSimdConstruct &y) {
Word("DECLARE SIMD ");
Walk("(", std::get<std::optional<Name>>(y.t), ")");
Walk(std::get<OmpClauseList>(y.t));
Put("\n");
EndOpenMP();
return false;
},
[&](const OpenMPDeclareTargetConstruct &) {
Word("DECLARE TARGET ");
return true;
},
[&](const OpenMPThreadprivate &) {
Word("THREADPRIVATE (");
return true;
},
},
x.u);
}
void Post(const OpenMPDeclarativeConstruct &) {
Put("\n");
EndOpenMP();
}
void Post(const OpenMPThreadprivate &) {
Put(")\n");
EndOpenMP();
}
void Unparse(const OmpSectionsDirective &x) {
switch (x.v) {
case llvm::omp::Directive::OMPD_sections:
Word("SECTIONS ");
break;
case llvm::omp::Directive::OMPD_parallel_sections:
Word("PARALLEL SECTIONS ");
break;
default:
break;
}
}
void Unparse(const OmpSectionBlocks &x) {
for (const auto &y : x.v) {
BeginOpenMP();
Word("!$OMP SECTION");
Put("\n");
EndOpenMP();
Walk(y, ""); // y is Block
}
}
void Unparse(const OpenMPSectionsConstruct &x) {
BeginOpenMP();
Word("!$OMP ");
Walk(std::get<OmpBeginSectionsDirective>(x.t));
Put("\n");
EndOpenMP();
Walk(std::get<OmpSectionBlocks>(x.t));
BeginOpenMP();
Word("!$OMP END ");
Walk(std::get<OmpEndSectionsDirective>(x.t));
Put("\n");
EndOpenMP();
}
void Unparse(const OpenMPCancellationPointConstruct &x) {
BeginOpenMP();
Word("!$OMP CANCELLATION POINT ");
Walk(std::get<OmpCancelType>(x.t));
Put("\n");
EndOpenMP();
}
void Unparse(const OpenMPCancelConstruct &x) {
BeginOpenMP();
Word("!$OMP CANCEL ");
Walk(std::get<OmpCancelType>(x.t));
Walk(std::get<std::optional<OpenMPCancelConstruct::If>>(x.t));
Put("\n");
EndOpenMP();
}
void Unparse(const OmpMemoryOrderClause &x) { Walk(x.v); }
void Unparse(const OmpAtomicClause &x) {
std::visit(common::visitors{
[&](const OmpMemoryOrderClause &y) { Walk(y); },
[&](const OmpClause &z) { Walk(z); },
},
x.u);
}
void Unparse(const OpenMPFlushConstruct &x) {
BeginOpenMP();
Word("!$OMP FLUSH ");
Walk(std::get<std::optional<std::list<OmpMemoryOrderClause>>>(x.t));
Walk(" (", std::get<std::optional<OmpObjectList>>(x.t), ")");
Put("\n");
EndOpenMP();
}
void Unparse(const OmpEndLoopDirective &x) {
BeginOpenMP();
Word("!$OMP END ");
Walk(std::get<OmpLoopDirective>(x.t));
Walk(std::get<OmpClauseList>(x.t));
Put("\n");
EndOpenMP();
}
void Unparse(const OmpClauseList &x) { Walk(" ", x.v, " "); }
void Unparse(const OpenMPSimpleStandaloneConstruct &x) {
BeginOpenMP();
Word("!$OMP ");
Walk(std::get<OmpSimpleStandaloneDirective>(x.t));
Walk(std::get<OmpClauseList>(x.t));
Put("\n");
EndOpenMP();
}
void Unparse(const OpenMPBlockConstruct &x) {
BeginOpenMP();
Word("!$OMP ");
Walk(std::get<OmpBeginBlockDirective>(x.t));
Put("\n");
EndOpenMP();
Walk(std::get<Block>(x.t), "");
BeginOpenMP();
Word("!$OMP END ");
Walk(std::get<OmpEndBlockDirective>(x.t));
Put("\n");
EndOpenMP();
}
void Unparse(const OpenMPLoopConstruct &x) {
BeginOpenMP();
Word("!$OMP ");
Walk(std::get<OmpBeginLoopDirective>(x.t));
Put("\n");
EndOpenMP();
Walk(std::get<std::optional<DoConstruct>>(x.t));
Walk(std::get<std::optional<OmpEndLoopDirective>>(x.t));
}
void Unparse(const BasedPointer &x) {
Put('('), Walk(std::get<0>(x.t)), Put(","), Walk(std::get<1>(x.t));
Walk("(", std::get<std::optional<ArraySpec>>(x.t), ")"), Put(')');
}
void Unparse(const BasedPointerStmt &x) { Walk("POINTER ", x.v, ","); }
void Post(const StructureField &x) {
if (const auto *def{std::get_if<Statement<DataComponentDefStmt>>(&x.u)}) {
for (const auto &decl :
std::get<std::list<ComponentDecl>>(def->statement.t)) {
structureComponents_.insert(std::get<Name>(decl.t).source);
}
}
}
void Unparse(const StructureStmt &x) {
Word("STRUCTURE ");
if (std::get<bool>(x.t)) { // slashes around name
Put('/'), Walk(std::get<Name>(x.t)), Put('/');
Walk(" ", std::get<std::list<EntityDecl>>(x.t), ", ");
} else {
CHECK(std::get<std::list<EntityDecl>>(x.t).empty());
Walk(std::get<Name>(x.t));
}
Indent();
}
void Post(const Union::UnionStmt &) { Word("UNION"), Indent(); }
void Post(const Union::EndUnionStmt &) { Outdent(), Word("END UNION"); }
void Post(const Map::MapStmt &) { Word("MAP"), Indent(); }
void Post(const Map::EndMapStmt &) { Outdent(), Word("END MAP"); }
void Post(const StructureDef::EndStructureStmt &) {
Outdent(), Word("END STRUCTURE");
}
void Unparse(const OldParameterStmt &x) {
Word("PARAMETER "), Walk(x.v, ", ");
}
void Unparse(const ArithmeticIfStmt &x) {
Word("IF ("), Walk(std::get<Expr>(x.t)), Put(") ");
Walk(std::get<1>(x.t)), Put(", ");
Walk(std::get<2>(x.t)), Put(", ");
Walk(std::get<3>(x.t));
}
void Unparse(const AssignStmt &x) {
Word("ASSIGN "), Walk(std::get<Label>(x.t));
Word(" TO "), Walk(std::get<Name>(x.t));
}
void Unparse(const AssignedGotoStmt &x) {
Word("GO TO "), Walk(std::get<Name>(x.t));
Walk(", (", std::get<std::list<Label>>(x.t), ", ", ")");
}
void Unparse(const PauseStmt &x) { Word("PAUSE"), Walk(" ", x.v); }
#define WALK_NESTED_ENUM(CLASS, ENUM) \
void Unparse(const CLASS::ENUM &x) { Word(CLASS::EnumToString(x)); }
WALK_NESTED_ENUM(AccessSpec, Kind) // R807
WALK_NESTED_ENUM(common, TypeParamAttr) // R734
WALK_NESTED_ENUM(IntentSpec, Intent) // R826
WALK_NESTED_ENUM(ImplicitStmt, ImplicitNoneNameSpec) // R866
WALK_NESTED_ENUM(ConnectSpec::CharExpr, Kind) // R1205
WALK_NESTED_ENUM(IoControlSpec::CharExpr, Kind)
WALK_NESTED_ENUM(InquireSpec::CharVar, Kind)
WALK_NESTED_ENUM(InquireSpec::IntVar, Kind)
WALK_NESTED_ENUM(InquireSpec::LogVar, Kind)
WALK_NESTED_ENUM(ProcedureStmt, Kind) // R1506
WALK_NESTED_ENUM(UseStmt, ModuleNature) // R1410
WALK_NESTED_ENUM(OmpProcBindClause, Type) // OMP PROC_BIND
WALK_NESTED_ENUM(OmpDefaultClause, Type) // OMP DEFAULT
WALK_NESTED_ENUM(OmpDefaultmapClause, ImplicitBehavior) // OMP DEFAULTMAP
WALK_NESTED_ENUM(OmpDefaultmapClause, VariableCategory) // OMP DEFAULTMAP
WALK_NESTED_ENUM(OmpScheduleModifierType, ModType) // OMP schedule-modifier
WALK_NESTED_ENUM(OmpLinearModifier, Type) // OMP linear-modifier
WALK_NESTED_ENUM(OmpDependenceType, Type) // OMP dependence-type
WALK_NESTED_ENUM(OmpMapType, Type) // OMP map-type
WALK_NESTED_ENUM(OmpScheduleClause, ScheduleType) // OMP schedule-type
WALK_NESTED_ENUM(OmpIfClause, DirectiveNameModifier) // OMP directive-modifier
WALK_NESTED_ENUM(OmpCancelType, Type) // OMP cancel-type
#undef WALK_NESTED_ENUM
void Done() const { CHECK(indent_ == 0); }
private:
void Put(char);
void Put(const char *);
void Put(const std::string &);
void PutNormalized(const std::string &);
void PutKeywordLetter(char);
void Word(const char *);
void Word(const std::string &);
void Indent() { indent_ += indentationAmount_; }
void Outdent() {
CHECK(indent_ >= indentationAmount_);
indent_ -= indentationAmount_;
}
void BeginOpenMP() { openmpDirective_ = true; }
void EndOpenMP() { openmpDirective_ = false; }
void BeginOpenACC() { openaccDirective_ = true; }
void EndOpenACC() { openaccDirective_ = false; }
// Call back to the traversal framework.
template <typename T> void Walk(const T &x) {
Fortran::parser::Walk(x, *this);
}
// Traverse a std::optional<> value. Emit a prefix and/or a suffix string
// only when it contains a value.
template <typename A>
void Walk(
const char *prefix, const std::optional<A> &x, const char *suffix = "") {
if (x) {
Word(prefix), Walk(*x), Word(suffix);
}
}
template <typename A>
void Walk(const std::optional<A> &x, const char *suffix = "") {
return Walk("", x, suffix);
}
// Traverse a std::list<>. Separate the elements with an optional string.
// Emit a prefix and/or a suffix string only when the list is not empty.
template <typename A>
void Walk(const char *prefix, const std::list<A> &list,
const char *comma = ", ", const char *suffix = "") {
if (!list.empty()) {
const char *str{prefix};
for (const auto &x : list) {
Word(str), Walk(x);
str = comma;
}
Word(suffix);
}
}
template <typename A>
void Walk(const std::list<A> &list, const char *comma = ", ",
const char *suffix = "") {
return Walk("", list, comma, suffix);
}
// Traverse a std::tuple<>, with an optional separator.
template <std::size_t J = 0, typename T>
void WalkTupleElements(const T &tuple, const char *separator) {
if (J > 0 && J < std::tuple_size_v<T>) {
Word(separator); // this usage dodges "unused parameter" warning
}
if constexpr (J < std::tuple_size_v<T>) {
Walk(std::get<J>(tuple));
WalkTupleElements<J + 1>(tuple, separator);
}
}
template <typename... A>
void Walk(const std::tuple<A...> &tuple, const char *separator = "") {
WalkTupleElements(tuple, separator);
}
void EndSubprogram(const char *kind, const std::optional<Name> &name) {
Outdent(), Word("END "), Word(kind), Walk(" ", name);
structureComponents_.clear();
}
llvm::raw_ostream &out_;
int indent_{0};
const int indentationAmount_{1};
int column_{1};
const int maxColumns_{80};
std::set<CharBlock> structureComponents_;
Encoding encoding_{Encoding::UTF_8};
bool capitalizeKeywords_{true};
bool openaccDirective_{false};
bool openmpDirective_{false};
bool backslashEscapes_{false};
preStatementType *preStatement_{nullptr};
AnalyzedObjectsAsFortran *asFortran_{nullptr};
};
void UnparseVisitor::Put(char ch) {
int sav = indent_;
if (openmpDirective_ || openaccDirective_) {
indent_ = 0;
}
if (column_ <= 1) {
if (ch == '\n') {
return;
}
for (int j{0}; j < indent_; ++j) {
out_ << ' ';
}
column_ = indent_ + 2;
} else if (ch == '\n') {
column_ = 1;
} else if (++column_ >= maxColumns_) {
out_ << "&\n";
for (int j{0}; j < indent_; ++j) {
out_ << ' ';
}
if (openmpDirective_) {
out_ << "!$OMP&";
column_ = 8;
} else if (openaccDirective_) {
out_ << "!$ACC&";
column_ = 8;
} else {
out_ << '&';
column_ = indent_ + 3;
}
}
out_ << ch;
if (openmpDirective_ || openaccDirective_) {
indent_ = sav;
}
}
void UnparseVisitor::Put(const char *str) {
for (; *str != '\0'; ++str) {
Put(*str);
}
}
void UnparseVisitor::Put(const std::string &str) {
for (char ch : str) {
Put(ch);
}
}
void UnparseVisitor::PutNormalized(const std::string &str) {
auto decoded{DecodeString<std::string, Encoding::LATIN_1>(str, true)};
std::string encoded{EncodeString<Encoding::LATIN_1>(decoded)};
Put(QuoteCharacterLiteral(encoded, backslashEscapes_));
}
void UnparseVisitor::PutKeywordLetter(char ch) {
if (capitalizeKeywords_) {
Put(ToUpperCaseLetter(ch));
} else {
Put(ToLowerCaseLetter(ch));
}
}
void UnparseVisitor::Word(const char *str) {
for (; *str != '\0'; ++str) {
PutKeywordLetter(*str);
}
}
void UnparseVisitor::Word(const std::string &str) { Word(str.c_str()); }
void Unparse(llvm::raw_ostream &out, const Program &program, Encoding encoding,
bool capitalizeKeywords, bool backslashEscapes,
preStatementType *preStatement, AnalyzedObjectsAsFortran *asFortran) {
UnparseVisitor visitor{out, 1, encoding, capitalizeKeywords, backslashEscapes,
preStatement, asFortran};
Walk(program, visitor);
visitor.Done();
}
} // namespace Fortran::parser
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