b861018e3a
Original-commit: flang-compiler/f18@6f1ef45b2f Reviewed-on: https://github.com/flang-compiler/f18/pull/162 Tree-same-pre-rewrite: false
804 lines
27 KiB
C++
804 lines
27 KiB
C++
// Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "expression.h"
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#include "int-power.h"
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#include "variable.h"
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#include "../common/idioms.h"
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#include "../parser/characters.h"
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#include "../parser/message.h"
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#include <ostream>
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#include <string>
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#include <type_traits>
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using namespace Fortran::parser::literals;
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namespace Fortran::evaluate {
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// Dumping
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template<typename... A>
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std::ostream &DumpExprWithType(std::ostream &o, const std::variant<A...> &u) {
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std::visit(
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[&](const auto &x) {
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using Ty = typename std::remove_reference_t<decltype(x)>::Result;
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x.Dump(o << '(' << Ty::Dump() << "::") << ')';
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},
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u);
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return o;
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}
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template<typename... A>
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std::ostream &DumpExpr(std::ostream &o, const std::variant<A...> &u) {
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std::visit([&](const auto &x) { x.Dump(o); }, u);
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return o;
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}
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template<Category CAT>
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std::ostream &Expr<AnyKindType<CAT>>::Dump(std::ostream &o) const {
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return DumpExpr(o, u);
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}
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template<Category CAT>
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std::ostream &CategoryComparison<CAT>::Dump(std::ostream &o) const {
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return DumpExpr(o, u);
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}
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std::ostream &GenericExpr::Dump(std::ostream &o) const {
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return DumpExpr(o, u);
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}
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template<typename CRTP, typename RESULT, typename A>
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std::ostream &Unary<CRTP, RESULT, A>::Dump(
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std::ostream &o, const char *opr) const {
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return operand().Dump(o << opr) << ')';
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}
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template<typename CRTP, typename RESULT, typename A, typename B>
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std::ostream &Binary<CRTP, RESULT, A, B>::Dump(
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std::ostream &o, const char *opr, const char *before) const {
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return right().Dump(left().Dump(o << before) << opr) << ')';
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}
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template<int KIND>
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std::ostream &IntegerExpr<KIND>::Dump(std::ostream &o) const {
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std::visit(common::visitors{[&](const Scalar &n) { o << n.SignedDecimal(); },
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[&](const CopyableIndirection<DataRef> &d) { d->Dump(o); },
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[&](const CopyableIndirection<FunctionRef> &d) { d->Dump(o); },
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[&](const Parentheses &p) { p.Dump(o, "("); },
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[&](const Negate &n) { n.Dump(o, "(-"); },
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[&](const Add &a) { a.Dump(o, "+"); },
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[&](const Subtract &s) { s.Dump(o, "-"); },
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[&](const Multiply &m) { m.Dump(o, "*"); },
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[&](const Divide &d) { d.Dump(o, "/"); },
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[&](const Power &p) { p.Dump(o, "**"); },
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[&](const Max &m) { m.Dump(o, ",", "MAX("); },
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[&](const Min &m) { m.Dump(o, ",", "MIN("); },
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[&](const auto &convert) {
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DumpExprWithType(o, convert.operand().u);
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}},
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u_);
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return o;
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}
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template<int KIND> std::ostream &RealExpr<KIND>::Dump(std::ostream &o) const {
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std::visit(
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common::visitors{[&](const Scalar &n) { o << n.DumpHexadecimal(); },
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[&](const CopyableIndirection<DataRef> &d) { d->Dump(o); },
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[&](const CopyableIndirection<ComplexPart> &d) { d->Dump(o); },
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[&](const CopyableIndirection<FunctionRef> &d) { d->Dump(o); },
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[&](const Parentheses &p) { p.Dump(o, "("); },
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[&](const Negate &n) { n.Dump(o, "(-"); },
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[&](const Add &a) { a.Dump(o, "+"); },
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[&](const Subtract &s) { s.Dump(o, "-"); },
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[&](const Multiply &m) { m.Dump(o, "*"); },
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[&](const Divide &d) { d.Dump(o, "/"); },
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[&](const Power &p) { p.Dump(o, "**"); },
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[&](const IntPower &p) { p.Dump(o, "**"); },
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[&](const Max &m) { m.Dump(o, ",", "MAX("); },
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[&](const Min &m) { m.Dump(o, ",", "MIN("); },
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[&](const RealPart &z) { z.Dump(o, "REAL("); },
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[&](const AIMAG &p) { p.Dump(o, "AIMAG("); },
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[&](const auto &convert) {
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DumpExprWithType(o, convert.operand().u);
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}},
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u_);
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return o;
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}
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template<int KIND>
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std::ostream &ComplexExpr<KIND>::Dump(std::ostream &o) const {
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std::visit(
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common::visitors{[&](const Scalar &n) { o << n.DumpHexadecimal(); },
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[&](const CopyableIndirection<DataRef> &d) { d->Dump(o); },
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[&](const CopyableIndirection<FunctionRef> &d) { d->Dump(o); },
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[&](const Parentheses &p) { p.Dump(o, "("); },
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[&](const Negate &n) { n.Dump(o, "(-"); },
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[&](const Add &a) { a.Dump(o, "+"); },
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[&](const Subtract &s) { s.Dump(o, "-"); },
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[&](const Multiply &m) { m.Dump(o, "*"); },
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[&](const Divide &d) { d.Dump(o, "/"); },
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[&](const Power &p) { p.Dump(o, "**"); },
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[&](const IntPower &p) { p.Dump(o, "**"); },
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[&](const CMPLX &c) { c.Dump(o, ","); }},
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u_);
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return o;
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}
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template<int KIND>
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std::ostream &CharacterExpr<KIND>::Dump(std::ostream &o) const {
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std::visit(common::visitors{[&](const Scalar &s) {
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o << parser::QuoteCharacterLiteral(s);
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},
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[&](const Concat &concat) { concat.Dump(o, "//"); },
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[&](const Max &m) { m.Dump(o, ",", "MAX("); },
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[&](const Min &m) { m.Dump(o, ",", "MIN("); },
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[&](const auto &ind) { ind->Dump(o); }},
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u_);
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return o;
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}
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template<typename A> std::ostream &Comparison<A>::Dump(std::ostream &o) const {
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o << '(' << A::Dump() << "::";
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this->left().Dump(o);
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o << '.' << EnumToString(this->opr) << '.';
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return this->right().Dump(o) << ')';
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}
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template<int KIND>
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std::ostream &LogicalExpr<KIND>::Dump(std::ostream &o) const {
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std::visit(common::visitors{[&](const Scalar &tf) {
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o << (tf.IsTrue() ? ".TRUE." : ".FALSE.");
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},
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[&](const CopyableIndirection<DataRef> &d) { d->Dump(o); },
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[&](const CopyableIndirection<FunctionRef> &d) { d->Dump(o); },
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[&](const Not &n) { n.Dump(o, "(.NOT."); },
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[&](const And &a) { a.Dump(o, ".AND."); },
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[&](const Or &a) { a.Dump(o, ".OR."); },
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[&](const Eqv &a) { a.Dump(o, ".EQV."); },
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[&](const Neqv &a) { a.Dump(o, ".NEQV."); },
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[&](const auto &comparison) { comparison.Dump(o); }},
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u_);
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return o;
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}
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// LEN()
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template<int KIND> SubscriptIntegerExpr CharacterExpr<KIND>::LEN() const {
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return std::visit(
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common::visitors{[](const Scalar &c) {
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// std::string::size_type isn't convertible to uint64_t
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// on Darwin
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return SubscriptIntegerExpr{
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static_cast<std::uint64_t>(c.size())};
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},
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[](const Concat &c) { return c.left().LEN() + c.right().LEN(); },
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[](const Max &c) {
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return SubscriptIntegerExpr{
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SubscriptIntegerExpr::Max{c.left().LEN(), c.right().LEN()}};
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},
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[](const Min &c) {
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return SubscriptIntegerExpr{
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SubscriptIntegerExpr::Max{c.left().LEN(), c.right().LEN()}};
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},
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[](const CopyableIndirection<DataRef> &dr) { return dr->LEN(); },
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[](const CopyableIndirection<Substring> &ss) { return ss->LEN(); },
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[](const CopyableIndirection<FunctionRef> &fr) {
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return fr->proc().LEN();
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}},
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u_);
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}
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// Rank
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template<typename CRTP, typename RESULT, typename A, typename B>
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int Binary<CRTP, RESULT, A, B>::Rank() const {
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int lrank{left_.Rank()};
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if (lrank > 0) {
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return lrank;
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}
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return right_.Rank();
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}
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// Folding
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template<typename CRTP, typename RESULT, typename A>
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auto Unary<CRTP, RESULT, A>::Fold(FoldingContext &context)
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-> std::optional<Scalar> {
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if (std::optional<OperandScalarConstant> c{operand_->Fold(context)}) {
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return static_cast<CRTP *>(this)->FoldScalar(context, *c);
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}
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return std::nullopt;
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}
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template<typename CRTP, typename RESULT, typename A, typename B>
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auto Binary<CRTP, RESULT, A, B>::Fold(FoldingContext &context)
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-> std::optional<Scalar> {
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std::optional<LeftScalar> lc{left_->Fold(context)};
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std::optional<RightScalar> rc{right_->Fold(context)};
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if (lc.has_value() && rc.has_value()) {
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return static_cast<CRTP *>(this)->FoldScalar(context, *lc, *rc);
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}
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return std::nullopt;
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}
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template<int KIND>
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auto IntegerExpr<KIND>::ConvertInteger::FoldScalar(FoldingContext &context,
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const ScalarConstant<Category::Integer> &c) -> std::optional<Scalar> {
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return std::visit(
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[&](auto &x) -> std::optional<Scalar> {
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auto converted{Scalar::ConvertSigned(x)};
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if (converted.overflow) {
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context.messages.Say("integer conversion overflowed"_en_US);
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return std::nullopt;
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}
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return {std::move(converted.value)};
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},
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c.u);
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}
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template<int KIND>
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auto IntegerExpr<KIND>::ConvertReal::FoldScalar(FoldingContext &context,
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const ScalarConstant<Category::Real> &c) -> std::optional<Scalar> {
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return std::visit(
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[&](auto &x) -> std::optional<Scalar> {
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auto converted{x.template ToInteger<Scalar>()};
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if (converted.flags.test(RealFlag::Overflow)) {
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context.messages.Say("real->integer conversion overflowed"_en_US);
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return std::nullopt;
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}
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if (converted.flags.test(RealFlag::InvalidArgument)) {
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context.messages.Say(
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"real->integer conversion: invalid argument"_en_US);
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return std::nullopt;
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}
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return {std::move(converted.value)};
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},
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c.u);
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}
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template<int KIND>
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auto IntegerExpr<KIND>::Negate::FoldScalar(
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FoldingContext &context, const Scalar &c) -> std::optional<Scalar> {
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auto negated{c.Negate()};
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if (negated.overflow) {
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context.messages.Say("integer negation overflowed"_en_US);
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return std::nullopt;
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}
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return {std::move(negated.value)};
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}
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template<int KIND>
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auto IntegerExpr<KIND>::Add::FoldScalar(FoldingContext &context,
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const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
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auto sum{a.AddSigned(b)};
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if (sum.overflow) {
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context.messages.Say("integer addition overflowed"_en_US);
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return std::nullopt;
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}
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return {std::move(sum.value)};
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}
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template<int KIND>
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auto IntegerExpr<KIND>::Subtract::FoldScalar(FoldingContext &context,
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const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
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auto diff{a.SubtractSigned(b)};
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if (diff.overflow) {
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context.messages.Say("integer subtraction overflowed"_en_US);
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return std::nullopt;
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}
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return {std::move(diff.value)};
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}
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template<int KIND>
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auto IntegerExpr<KIND>::Multiply::FoldScalar(FoldingContext &context,
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const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
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auto product{a.MultiplySigned(b)};
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if (product.SignedMultiplicationOverflowed()) {
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context.messages.Say("integer multiplication overflowed"_en_US);
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return std::nullopt;
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}
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return {std::move(product.lower)};
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}
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template<int KIND>
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auto IntegerExpr<KIND>::Divide::FoldScalar(FoldingContext &context,
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const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
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auto qr{a.DivideSigned(b)};
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if (qr.divisionByZero) {
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context.messages.Say("integer division by zero"_en_US);
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return std::nullopt;
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}
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if (qr.overflow) {
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context.messages.Say("integer division overflowed"_en_US);
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return std::nullopt;
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}
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return {std::move(qr.quotient)};
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}
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template<int KIND>
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auto IntegerExpr<KIND>::Power::FoldScalar(FoldingContext &context,
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const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
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typename Scalar::PowerWithErrors power{a.Power(b)};
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if (power.divisionByZero) {
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context.messages.Say("zero to negative power"_en_US);
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return std::nullopt;
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}
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if (power.overflow) {
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context.messages.Say("integer power overflowed"_en_US);
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return std::nullopt;
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}
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if (power.zeroToZero) {
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context.messages.Say("integer 0**0"_en_US);
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return std::nullopt;
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}
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return {std::move(power.power)};
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}
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template<int KIND>
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auto IntegerExpr<KIND>::Max::FoldScalar(FoldingContext &context,
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const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
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if (a.CompareSigned(b) == Ordering::Greater) {
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return {a};
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}
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return {b};
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}
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template<int KIND>
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auto IntegerExpr<KIND>::Min::FoldScalar(FoldingContext &context,
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const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
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if (a.CompareSigned(b) == Ordering::Less) {
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return {a};
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}
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return {b};
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}
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template<int KIND>
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auto IntegerExpr<KIND>::Fold(FoldingContext &context) -> std::optional<Scalar> {
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return std::visit(
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[&](auto &x) -> std::optional<Scalar> {
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using Ty = typename std::decay<decltype(x)>::type;
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if constexpr (std::is_same_v<Ty, Scalar>) {
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return {x};
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}
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if constexpr (evaluate::FoldableTrait<Ty>) {
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auto c{x.Fold(context)};
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if (c.has_value()) {
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u_ = *c;
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return c;
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}
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}
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return std::nullopt;
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},
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u_);
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}
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static void RealFlagWarnings(
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FoldingContext &context, const RealFlags &flags, const char *operation) {
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if (flags.test(RealFlag::Overflow)) {
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context.messages.Say(
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parser::MessageFormattedText("overflow on %s"_en_US, operation));
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}
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if (flags.test(RealFlag::DivideByZero)) {
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context.messages.Say(parser::MessageFormattedText(
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"division by zero on %s"_en_US, operation));
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}
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if (flags.test(RealFlag::InvalidArgument)) {
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context.messages.Say(parser::MessageFormattedText(
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"invalid argument on %s"_en_US, operation));
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}
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if (flags.test(RealFlag::Underflow)) {
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context.messages.Say(
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parser::MessageFormattedText("underflow on %s"_en_US, operation));
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}
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}
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template<int KIND>
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auto RealExpr<KIND>::ConvertInteger::FoldScalar(FoldingContext &context,
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const ScalarConstant<Category::Integer> &c) -> std::optional<Scalar> {
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return std::visit(
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[&](auto &x) -> std::optional<Scalar> {
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auto converted{Scalar::FromInteger(x)};
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RealFlagWarnings(context, converted.flags, "integer->real conversion");
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return {std::move(converted.value)};
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},
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c.u);
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}
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template<int KIND>
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auto RealExpr<KIND>::ConvertReal::FoldScalar(FoldingContext &context,
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const ScalarConstant<Category::Real> &c) -> std::optional<Scalar> {
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return std::visit(
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[&](auto &x) -> std::optional<Scalar> {
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auto converted{Scalar::Convert(x)};
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RealFlagWarnings(context, converted.flags, "real conversion");
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return {std::move(converted.value)};
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},
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c.u);
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}
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template<int KIND>
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auto RealExpr<KIND>::Negate::FoldScalar(
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FoldingContext &context, const Scalar &c) -> std::optional<Scalar> {
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return {c.Negate()};
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}
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template<int KIND>
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auto RealExpr<KIND>::Add::FoldScalar(FoldingContext &context, const Scalar &a,
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const Scalar &b) -> std::optional<Scalar> {
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auto sum{a.Add(b, context.rounding)};
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RealFlagWarnings(context, sum.flags, "real addition");
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return {std::move(sum.value)};
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}
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template<int KIND>
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auto RealExpr<KIND>::Subtract::FoldScalar(FoldingContext &context,
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const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
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auto difference{a.Subtract(b, context.rounding)};
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RealFlagWarnings(context, difference.flags, "real subtraction");
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return {std::move(difference.value)};
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}
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template<int KIND>
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auto RealExpr<KIND>::Multiply::FoldScalar(FoldingContext &context,
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const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
auto product{a.Multiply(b, context.rounding)};
|
|
RealFlagWarnings(context, product.flags, "real multiplication");
|
|
return {std::move(product.value)};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto RealExpr<KIND>::Divide::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
auto quotient{a.Divide(b, context.rounding)};
|
|
RealFlagWarnings(context, quotient.flags, "real division");
|
|
return {std::move(quotient.value)};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto RealExpr<KIND>::Power::FoldScalar(FoldingContext &context, const Scalar &a,
|
|
const Scalar &b) -> std::optional<Scalar> {
|
|
return std::nullopt; // TODO
|
|
}
|
|
|
|
template<int KIND>
|
|
auto RealExpr<KIND>::IntPower::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const ScalarConstant<Category::Integer> &b)
|
|
-> std::optional<Scalar> {
|
|
return std::visit(
|
|
[&](const auto &pow) -> std::optional<Scalar> {
|
|
auto power{evaluate::IntPower(a, pow)};
|
|
RealFlagWarnings(context, power.flags, "raising to integer power");
|
|
return {std::move(power.value)};
|
|
},
|
|
b.u);
|
|
}
|
|
|
|
template<int KIND>
|
|
auto RealExpr<KIND>::Max::FoldScalar(FoldingContext &context, const Scalar &a,
|
|
const Scalar &b) -> std::optional<Scalar> {
|
|
if (b.IsNotANumber() || a.Compare(b) == Relation::Less) {
|
|
return {b};
|
|
}
|
|
return {a};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto RealExpr<KIND>::Min::FoldScalar(FoldingContext &context, const Scalar &a,
|
|
const Scalar &b) -> std::optional<Scalar> {
|
|
if (b.IsNotANumber() || a.Compare(b) == Relation::Greater) {
|
|
return {b};
|
|
}
|
|
return {a};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto RealExpr<KIND>::RealPart::FoldScalar(
|
|
FoldingContext &context, const CplxScalar &z) -> std::optional<Scalar> {
|
|
return {z.REAL()};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto RealExpr<KIND>::AIMAG::FoldScalar(
|
|
FoldingContext &context, const CplxScalar &z) -> std::optional<Scalar> {
|
|
return {z.AIMAG()};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto RealExpr<KIND>::Fold(FoldingContext &context) -> std::optional<Scalar> {
|
|
return std::visit(
|
|
[&](auto &x) -> std::optional<Scalar> {
|
|
using Ty = typename std::decay<decltype(x)>::type;
|
|
if constexpr (std::is_same_v<Ty, Scalar>) {
|
|
return {x};
|
|
}
|
|
if constexpr (evaluate::FoldableTrait<Ty>) {
|
|
auto c{x.Fold(context)};
|
|
if (c.has_value()) {
|
|
if (context.flushDenormalsToZero) {
|
|
*c = c->FlushDenormalToZero();
|
|
}
|
|
u_ = *c;
|
|
return c;
|
|
}
|
|
}
|
|
return std::nullopt;
|
|
},
|
|
u_);
|
|
}
|
|
|
|
template<int KIND>
|
|
auto ComplexExpr<KIND>::Negate::FoldScalar(
|
|
FoldingContext &context, const Scalar &c) -> std::optional<Scalar> {
|
|
return {c.Negate()};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto ComplexExpr<KIND>::Add::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
auto sum{a.Add(b, context.rounding)};
|
|
RealFlagWarnings(context, sum.flags, "complex addition");
|
|
return {std::move(sum.value)};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto ComplexExpr<KIND>::Subtract::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
auto difference{a.Subtract(b, context.rounding)};
|
|
RealFlagWarnings(context, difference.flags, "complex subtraction");
|
|
return {std::move(difference.value)};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto ComplexExpr<KIND>::Multiply::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
auto product{a.Multiply(b, context.rounding)};
|
|
RealFlagWarnings(context, product.flags, "complex multiplication");
|
|
return {std::move(product.value)};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto ComplexExpr<KIND>::Divide::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
auto quotient{a.Divide(b, context.rounding)};
|
|
RealFlagWarnings(context, quotient.flags, "complex division");
|
|
return {std::move(quotient.value)};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto ComplexExpr<KIND>::Power::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
return std::nullopt; // TODO
|
|
}
|
|
|
|
template<int KIND>
|
|
auto ComplexExpr<KIND>::IntPower::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const ScalarConstant<Category::Integer> &b)
|
|
-> std::optional<Scalar> {
|
|
return std::visit(
|
|
[&](const auto &pow) -> std::optional<Scalar> {
|
|
auto power{evaluate::IntPower(a, pow)};
|
|
RealFlagWarnings(context, power.flags, "raising to integer power");
|
|
return {std::move(power.value)};
|
|
},
|
|
b.u);
|
|
}
|
|
|
|
template<int KIND>
|
|
auto ComplexExpr<KIND>::CMPLX::FoldScalar(FoldingContext &context,
|
|
const PartScalar &a, const PartScalar &b) -> std::optional<Scalar> {
|
|
return {Scalar{a, b}};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto ComplexExpr<KIND>::Fold(FoldingContext &context) -> std::optional<Scalar> {
|
|
return std::visit(
|
|
[&](auto &x) -> std::optional<Scalar> {
|
|
using Ty = typename std::decay<decltype(x)>::type;
|
|
if constexpr (std::is_same_v<Ty, Scalar>) {
|
|
return {x};
|
|
}
|
|
if constexpr (evaluate::FoldableTrait<Ty>) {
|
|
auto c{x.Fold(context)};
|
|
if (c.has_value()) {
|
|
if (context.flushDenormalsToZero) {
|
|
*c = c->FlushDenormalToZero();
|
|
}
|
|
u_ = *c;
|
|
return c;
|
|
}
|
|
}
|
|
return std::nullopt;
|
|
},
|
|
u_);
|
|
}
|
|
|
|
template<int KIND>
|
|
auto CharacterExpr<KIND>::Fold(FoldingContext &context)
|
|
-> std::optional<Scalar> {
|
|
return std::nullopt; // TODO
|
|
}
|
|
|
|
template<typename A>
|
|
auto Comparison<A>::FoldScalar(FoldingContext &c,
|
|
const OperandScalarConstant &a, const OperandScalarConstant &b)
|
|
-> std::optional<Scalar> {
|
|
if constexpr (A::category == Category::Integer) {
|
|
switch (a.CompareSigned(b)) {
|
|
case Ordering::Less:
|
|
return {opr == RelationalOperator::LE || opr == RelationalOperator::LE ||
|
|
opr == RelationalOperator::NE};
|
|
case Ordering::Equal:
|
|
return {opr == RelationalOperator::LE || opr == RelationalOperator::EQ ||
|
|
opr == RelationalOperator::GE};
|
|
case Ordering::Greater:
|
|
return {opr == RelationalOperator::NE || opr == RelationalOperator::GE ||
|
|
opr == RelationalOperator::GT};
|
|
}
|
|
}
|
|
if constexpr (A::category == Category::Real) {
|
|
switch (a.Compare(b)) {
|
|
case Relation::Less:
|
|
return {opr == RelationalOperator::LE || opr == RelationalOperator::LE ||
|
|
opr == RelationalOperator::NE};
|
|
case Relation::Equal:
|
|
return {opr == RelationalOperator::LE || opr == RelationalOperator::EQ ||
|
|
opr == RelationalOperator::GE};
|
|
case Relation::Greater:
|
|
return {opr == RelationalOperator::NE || opr == RelationalOperator::GE ||
|
|
opr == RelationalOperator::GT};
|
|
case Relation::Unordered: return std::nullopt;
|
|
}
|
|
}
|
|
// TODO complex and character comparisons
|
|
return std::nullopt;
|
|
}
|
|
|
|
template<int KIND>
|
|
auto LogicalExpr<KIND>::Not::FoldScalar(
|
|
FoldingContext &context, const Scalar &x) -> std::optional<Scalar> {
|
|
return {Scalar{!x.IsTrue()}};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto LogicalExpr<KIND>::And::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
return {Scalar{a.IsTrue() && b.IsTrue()}};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto LogicalExpr<KIND>::Or::FoldScalar(FoldingContext &context, const Scalar &a,
|
|
const Scalar &b) -> std::optional<Scalar> {
|
|
return {Scalar{a.IsTrue() || b.IsTrue()}};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto LogicalExpr<KIND>::Eqv::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
return {Scalar{a.IsTrue() == b.IsTrue()}};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto LogicalExpr<KIND>::Neqv::FoldScalar(FoldingContext &context,
|
|
const Scalar &a, const Scalar &b) -> std::optional<Scalar> {
|
|
return {Scalar{a.IsTrue() != b.IsTrue()}};
|
|
}
|
|
|
|
template<int KIND>
|
|
auto LogicalExpr<KIND>::Fold(FoldingContext &context) -> std::optional<Scalar> {
|
|
return std::visit(
|
|
[&](auto &x) -> std::optional<Scalar> {
|
|
using Ty = typename std::decay<decltype(x)>::type;
|
|
if constexpr (std::is_same_v<Ty, Scalar>) {
|
|
return {x};
|
|
}
|
|
if constexpr (evaluate::FoldableTrait<Ty>) {
|
|
std::optional<Scalar> c{x.Fold(context)};
|
|
if (c.has_value()) {
|
|
u_ = *c;
|
|
return c;
|
|
}
|
|
}
|
|
return std::nullopt;
|
|
},
|
|
u_);
|
|
}
|
|
|
|
std::optional<GenericScalar> GenericExpr::ScalarValue() const {
|
|
return std::visit(
|
|
[](const auto &x) -> std::optional<GenericScalar> {
|
|
if (auto c{x.ScalarValue()}) {
|
|
return {GenericScalar{std::move(*c)}};
|
|
}
|
|
return std::nullopt;
|
|
},
|
|
u);
|
|
}
|
|
|
|
template<Category CAT>
|
|
auto Expr<AnyKindType<CAT>>::ScalarValue() const -> std::optional<Scalar> {
|
|
return std::visit(
|
|
[](const auto &x) -> std::optional<Scalar> {
|
|
if (auto c{x.ScalarValue()}) {
|
|
return {Scalar{std::move(*c)}};
|
|
}
|
|
return std::nullopt;
|
|
},
|
|
u);
|
|
}
|
|
|
|
template<Category CAT>
|
|
auto Expr<AnyKindType<CAT>>::Fold(FoldingContext &context)
|
|
-> std::optional<Scalar> {
|
|
return std::visit(
|
|
[&](auto &x) -> std::optional<Scalar> {
|
|
if (auto c{x.Fold(context)}) {
|
|
return {Scalar{std::move(*c)}};
|
|
}
|
|
return std::nullopt;
|
|
},
|
|
u);
|
|
}
|
|
|
|
std::optional<GenericScalar> GenericExpr::Fold(FoldingContext &context) {
|
|
return std::visit(
|
|
[&](auto &x) -> std::optional<GenericScalar> {
|
|
if (auto c{x.Fold(context)}) {
|
|
return {GenericScalar{std::move(*c)}};
|
|
}
|
|
return std::nullopt;
|
|
},
|
|
u);
|
|
}
|
|
|
|
template class Expr<AnyKindType<Category::Integer>>;
|
|
template class Expr<AnyKindType<Category::Real>>;
|
|
template class Expr<AnyKindType<Category::Complex>>;
|
|
template class Expr<AnyKindType<Category::Character>>;
|
|
template class Expr<AnyKindType<Category::Logical>>;
|
|
|
|
template class Expr<Type<Category::Integer, 1>>;
|
|
template class Expr<Type<Category::Integer, 2>>;
|
|
template class Expr<Type<Category::Integer, 4>>;
|
|
template class Expr<Type<Category::Integer, 8>>;
|
|
template class Expr<Type<Category::Integer, 16>>;
|
|
template class Expr<Type<Category::Real, 2>>;
|
|
template class Expr<Type<Category::Real, 4>>;
|
|
template class Expr<Type<Category::Real, 8>>;
|
|
template class Expr<Type<Category::Real, 10>>;
|
|
template class Expr<Type<Category::Real, 16>>;
|
|
template class Expr<Type<Category::Complex, 2>>;
|
|
template class Expr<Type<Category::Complex, 4>>;
|
|
template class Expr<Type<Category::Complex, 8>>;
|
|
template class Expr<Type<Category::Complex, 10>>;
|
|
template class Expr<Type<Category::Complex, 16>>;
|
|
template class Expr<Type<Category::Character, 1>>;
|
|
template class Expr<Type<Category::Logical, 1>>;
|
|
template class Expr<Type<Category::Logical, 2>>;
|
|
template class Expr<Type<Category::Logical, 4>>;
|
|
template class Expr<Type<Category::Logical, 8>>;
|
|
|
|
template struct Comparison<Type<Category::Integer, 1>>;
|
|
template struct Comparison<Type<Category::Integer, 2>>;
|
|
template struct Comparison<Type<Category::Integer, 4>>;
|
|
template struct Comparison<Type<Category::Integer, 8>>;
|
|
template struct Comparison<Type<Category::Integer, 16>>;
|
|
template struct Comparison<Type<Category::Real, 2>>;
|
|
template struct Comparison<Type<Category::Real, 4>>;
|
|
template struct Comparison<Type<Category::Real, 8>>;
|
|
template struct Comparison<Type<Category::Real, 10>>;
|
|
template struct Comparison<Type<Category::Real, 16>>;
|
|
template struct Comparison<Type<Category::Complex, 2>>;
|
|
template struct Comparison<Type<Category::Complex, 4>>;
|
|
template struct Comparison<Type<Category::Complex, 8>>;
|
|
template struct Comparison<Type<Category::Complex, 10>>;
|
|
template struct Comparison<Type<Category::Complex, 16>>;
|
|
template struct Comparison<Type<Category::Character, 1>>;
|
|
} // namespace Fortran::evaluate
|