2eac1d0475
Original-commit: flang-compiler/f18@85d16ace6c Reviewed-on: https://github.com/flang-compiler/f18/pull/144 Tree-same-pre-rewrite: false
651 lines
23 KiB
C++
651 lines
23 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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#ifndef FORTRAN_EVALUATE_EXPRESSION_H_
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#define FORTRAN_EVALUATE_EXPRESSION_H_
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// Represent Fortran expressions in a type-safe manner.
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// Expressions are the sole owners of their constituents; i.e., there is no
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// context-independent hash table or sharing of common subexpressions.
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// Both deep copy and move semantics are supported for expression construction
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// and manipulation in place.
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// TODO: convenience wrappers for constructing conversions
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#include "common.h"
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#include "expression-forward.h"
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#include "type.h"
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#include "variable.h"
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#include "../lib/common/idioms.h"
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#include "../lib/parser/char-block.h"
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#include "../lib/parser/message.h"
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#include <ostream>
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#include <variant>
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namespace Fortran::evaluate {
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CLASS_TRAIT(FoldableTrait);
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struct FoldingContext {
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const parser::CharBlock &at;
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parser::Messages *messages;
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};
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// Holds a scalar constant of any kind in an intrinsic type category.
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template<Category CAT> struct CategoryScalar {
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CLASS_BOILERPLATE(CategoryScalar)
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template<int KIND> using KindScalar = typename Type<CAT, KIND>::Value;
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template<typename A> CategoryScalar(const A &x) : u{x} {}
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template<typename A>
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CategoryScalar(std::enable_if_t<!std::is_reference_v<A>, A> &&x)
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: u{std::move(x)} {}
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typename KindsVariant<CAT, KindScalar>::type u;
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};
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template<> struct CategoryScalar<Category::Logical> { std::variant<bool> u; };
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// Holds a scalar constant of any intrinsic category and size.
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struct GenericScalar {
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CLASS_BOILERPLATE(GenericScalar)
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template<Category CAT, int KIND>
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GenericScalar(const typename Type<CAT, KIND>::Value &x)
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: u{CategoryScalar<CAT>{x}} {}
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template<Category CAT, int KIND>
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GenericScalar(typename Type<CAT, KIND>::Value &&x)
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: u{CategoryScalar<CAT>{std::move(x)}} {}
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template<typename A> GenericScalar(const A &x) : u{x} {}
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template<typename A>
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GenericScalar(std::enable_if_t<!std::is_reference_v<A>, A> &&x)
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: u{std::move(x)} {}
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std::variant<CategoryScalar<Category::Integer>,
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CategoryScalar<Category::Real>, CategoryScalar<Category::Complex>,
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CategoryScalar<Category::Character>, bool>
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u;
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};
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// Helper base classes for packaging subexpressions.
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template<typename CRTP, typename RESULT, typename A,
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typename ASCALAR = typename A::Scalar>
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class Unary {
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public:
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using Result = RESULT;
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using Scalar = typename Type<Result::category, Result::kind>::Value;
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using FoldableTrait = std::true_type;
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CLASS_BOILERPLATE(Unary)
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Unary(const A &a) : operand_{a} {}
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Unary(A &&a) : operand_{std::move(a)} {}
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Unary(CopyableIndirection<A> &&a) : operand_{std::move(a)} {}
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const A &operand() const { return *operand_; }
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A &operand() { return *operand_; }
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std::ostream &Dump(std::ostream &, const char *opr) const;
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int Rank() const { return operand_.Rank(); }
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std::optional<Scalar> Fold(FoldingContext &); // TODO: array result
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protected:
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using Operand = A;
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using OperandScalar = ASCALAR;
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private:
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CopyableIndirection<Operand> operand_;
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};
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template<typename CRTP, typename RESULT, typename A, typename B = A,
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typename ASCALAR = typename A::Scalar,
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typename BSCALAR = typename B::Scalar>
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class Binary {
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public:
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using Result = RESULT;
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using Scalar = typename Type<Result::category, Result::kind>::Value;
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using FoldableTrait = std::true_type;
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CLASS_BOILERPLATE(Binary)
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Binary(const A &a, const B &b) : left_{a}, right_{b} {}
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Binary(A &&a, B &&b) : left_{std::move(a)}, right_{std::move(b)} {}
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Binary(CopyableIndirection<const A> &&a, CopyableIndirection<const B> &&b)
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: left_{std::move(a)}, right_{std::move(b)} {}
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const A &left() const { return *left_; }
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A &left() { return *left_; }
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const B &right() const { return *right_; }
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B &right() { return *right_; }
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std::ostream &Dump(
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std::ostream &, const char *opr, const char *before = "(") const;
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int Rank() const;
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std::optional<Scalar> Fold(FoldingContext &);
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protected:
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using Left = A;
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using Right = B;
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using LeftScalar = ASCALAR;
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using RightScalar = BSCALAR;
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private:
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CopyableIndirection<Left> left_;
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CopyableIndirection<Right> right_;
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};
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// Per-category expressions
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template<int KIND> class Expr<Category::Integer, KIND> {
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public:
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using Result = Type<Category::Integer, KIND>;
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using Scalar = typename Result::Value;
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using FoldableTrait = std::true_type;
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struct ConvertInteger
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: public Unary<ConvertInteger, Result, GenericIntegerExpr,
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CategoryScalar<Category::Integer>> {
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using Unary<ConvertInteger, Result, GenericIntegerExpr,
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CategoryScalar<Category::Integer>>::Unary;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const CategoryScalar<Category::Integer> &);
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};
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struct ConvertReal : public Unary<ConvertReal, Result, GenericRealExpr,
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CategoryScalar<Category::Real>> {
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using Unary<ConvertReal, Result, GenericRealExpr,
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CategoryScalar<Category::Real>>::Unary;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const CategoryScalar<Category::Real> &) {
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return {};
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} // TODO
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};
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template<typename CRTP> using Un = Unary<CRTP, Result, Expr>;
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template<typename CRTP>
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using Bin = Binary<CRTP, Result, Expr, Expr, Scalar, Scalar>;
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struct Parentheses : public Un<Parentheses> {
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using Un<Parentheses>::Un;
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static std::optional<Scalar> FoldScalar(FoldingContext &, const Scalar &x) {
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return {x};
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}
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};
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struct Negate : public Un<Negate> {
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using Un<Negate>::Un;
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static std::optional<Scalar> FoldScalar(FoldingContext &, const Scalar &);
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};
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struct Add : public Bin<Add> {
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using Bin<Add>::Bin;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const Scalar &, const Scalar &);
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};
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struct Subtract : public Bin<Subtract> {
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using Bin<Subtract>::Bin;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const Scalar &, const Scalar &);
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};
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struct Multiply : public Bin<Multiply> {
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using Bin<Multiply>::Bin;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const Scalar &, const Scalar &);
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};
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struct Divide : public Bin<Divide> {
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using Bin<Divide>::Bin;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const Scalar &, const Scalar &);
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};
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struct Power : public Bin<Power> {
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using Bin<Power>::Bin;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const Scalar &, const Scalar &);
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};
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struct Max : public Bin<Max> {
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using Bin<Max>::Bin;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const Scalar &, const Scalar &);
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};
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struct Min : public Bin<Min> {
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using Bin<Min>::Bin;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const Scalar &, const Scalar &);
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};
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// TODO: R916 type-param-inquiry
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CLASS_BOILERPLATE(Expr)
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Expr(const Scalar &x) : u_{x} {}
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Expr(std::int64_t n) : u_{Scalar{n}} {}
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Expr(std::uint64_t n) : u_{Scalar{n}} {}
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Expr(int n) : u_{Scalar{n}} {}
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template<int K>
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Expr(const IntegerExpr<K> &x) : u_{ConvertInteger{GenericIntegerExpr{x}}} {}
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template<int K>
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Expr(IntegerExpr<K> &&x)
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: u_{ConvertInteger{GenericIntegerExpr{std::move(x)}}} {}
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template<int K>
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Expr(const RealExpr<K> &x) : u_{ConvertReal{GenericRealExpr{x}}} {}
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template<int K>
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Expr(RealExpr<K> &&x) : u_{ConvertReal{GenericRealExpr{std::move(x)}}} {}
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template<typename A> Expr(const A &x) : u_{x} {}
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template<typename A>
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Expr(std::enable_if_t<!std::is_reference_v<A> &&
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(std::is_base_of_v<Un, A> || std::is_base_of_v<Bin, A>),
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A> &&x)
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: u_(std::move(x)) {}
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template<typename A> Expr(CopyableIndirection<A> &&x) : u_{std::move(x)} {}
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std::optional<Scalar> ScalarValue() const {
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return common::GetIf<Scalar>(u_);
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}
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std::optional<Scalar> Fold(FoldingContext &c);
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private:
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std::variant<Scalar, CopyableIndirection<DataRef>,
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CopyableIndirection<FunctionRef>, ConvertInteger, ConvertReal,
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Parentheses, Negate, Add, Subtract, Multiply, Divide, Power, Max, Min>
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u_;
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};
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template<int KIND> class Expr<Category::Real, KIND> {
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public:
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using Result = Type<Category::Real, KIND>;
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using Scalar = typename Result::Value;
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using FoldableTrait = std::true_type;
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// N.B. Real->Complex and Complex->Real conversions are done with CMPLX
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// and part access operations (resp.). Conversions between kinds of
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// Complex are done via decomposition to Real and reconstruction.
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struct ConvertInteger
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: public Unary<ConvertInteger, Result, GenericIntegerExpr,
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CategoryScalar<Category::Integer>> {
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using Unary<ConvertInteger, Result, GenericIntegerExpr,
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CategoryScalar<Category::Integer>>::Unary;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const CategoryScalar<Category::Integer> &);
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};
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struct ConvertReal : public Unary<ConvertReal, Result, GenericRealExpr,
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CategoryScalar<Category::Real>> {
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using Unary<ConvertReal, Result, GenericRealExpr,
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CategoryScalar<Category::Real>>::Unary;
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static std::optional<Scalar> FoldScalar(
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FoldingContext &, const CategoryScalar<Category::Real> &);
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};
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template<typename CRTP> using Un = Unary<CRTP, Result, Expr, Scalar>;
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template<typename CRTP>
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using Bin = Binary<CRTP, Result, Expr, Expr, Scalar, Scalar>;
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struct Parentheses : public Un<Parentheses> {
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using Un<Parentheses>::Un;
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};
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struct Negate : public Un<Negate> {
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using Un<Negate>::Un;
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};
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struct Add : public Bin<Add> {
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using Bin<Add>::Bin;
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};
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struct Subtract : public Bin<Subtract> {
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using Bin<Subtract>::Bin;
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};
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struct Multiply : public Bin<Multiply> {
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using Bin<Multiply>::Bin;
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};
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struct Divide : public Bin<Divide> {
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using Bin<Divide>::Bin;
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};
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struct Power : public Bin<Power> {
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using Bin<Power>::Bin;
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};
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struct IntPower : public Binary<IntPower, Result, Expr, GenericIntegerExpr,
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Scalar, CategoryScalar<Category::Integer>> {
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using Binary<IntPower, Result, Expr, GenericIntegerExpr, Scalar,
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CategoryScalar<Category::Integer>>::Binary;
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};
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struct Max : public Bin<Max> {
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using Bin<Max>::Bin;
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};
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struct Min : public Bin<Min> {
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using Bin<Min>::Bin;
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};
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template<typename CRTP>
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using CplxUn = Unary<CRTP, Result, ComplexExpr<KIND>,
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typename Type<Category::Complex, KIND>::Value>;
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struct RealPart : public CplxUn<RealPart> {
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using CplxUn<RealPart>::CplxUn;
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};
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struct AIMAG : public CplxUn<AIMAG> {
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using CplxUn<AIMAG>::CplxUn;
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};
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CLASS_BOILERPLATE(Expr)
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Expr(const Scalar &x) : u_{x} {}
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template<int K>
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Expr(const IntegerExpr<K> &x) : u_{ConvertInteger{GenericIntegerExpr{x}}} {}
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template<int K>
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Expr(IntegerExpr<K> &&x)
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: u_{ConvertInteger{GenericIntegerExpr{std::move(x)}}} {}
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template<int K>
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Expr(const RealExpr<K> &x) : u_{ConvertReal{GenericRealExpr{x}}} {}
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template<int K>
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Expr(RealExpr<K> &&x) : u_{ConvertReal{GenericRealExpr{std::move(x)}}} {}
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template<typename A> Expr(const A &x) : u_{x} {}
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template<typename A>
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Expr(std::enable_if_t<!std::is_reference_v<A>, A> &&x) : u_{std::move(x)} {}
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template<typename A> Expr(CopyableIndirection<A> &&x) : u_{std::move(x)} {}
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std::optional<Scalar> ScalarValue() const {
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return common::GetIf<Scalar>(u_);
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}
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std::optional<Scalar> Fold(FoldingContext &c);
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private:
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std::variant<Scalar, CopyableIndirection<DataRef>,
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CopyableIndirection<ComplexPart>, CopyableIndirection<FunctionRef>,
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ConvertInteger, ConvertReal, Parentheses, Negate, Add, Subtract, Multiply,
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Divide, Power, IntPower, Max, Min, RealPart, AIMAG>
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u_;
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};
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template<int KIND> class Expr<Category::Complex, KIND> {
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public:
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using Result = Type<Category::Complex, KIND>;
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using Scalar = typename Result::Value;
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using FoldableTrait = std::true_type;
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template<typename CRTP> using Un = Unary<CRTP, Result, Expr, Scalar>;
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template<typename CRTP>
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using Bin = Binary<CRTP, Result, Expr, Expr, Scalar, Scalar>;
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struct Parentheses : public Un<Parentheses> {
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using Un<Parentheses>::Un;
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};
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struct Negate : public Un<Negate> {
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using Un<Negate>::Un;
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};
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struct Add : public Bin<Add> {
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using Bin<Add>::Bin;
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};
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struct Subtract : public Bin<Subtract> {
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using Bin<Subtract>::Bin;
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};
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struct Multiply : public Bin<Multiply> {
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using Bin<Multiply>::Bin;
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};
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struct Divide : public Bin<Divide> {
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using Bin<Divide>::Bin;
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};
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struct Power : public Bin<Power> {
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using Bin<Power>::Bin;
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};
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struct IntPower : public Binary<IntPower, Result, Expr, GenericIntegerExpr,
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Scalar, CategoryScalar<Category::Integer>> {
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using Binary<IntPower, Result, Expr, GenericIntegerExpr, Scalar,
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CategoryScalar<Category::Integer>>::Binary;
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};
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struct CMPLX : public Binary<CMPLX, Result, RealExpr<KIND>, RealExpr<KIND>,
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typename Scalar::Part, typename Scalar::Part> {
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using Binary<CMPLX, Result, RealExpr<KIND>, RealExpr<KIND>,
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typename Scalar::Part, typename Scalar::Part>::Binary;
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};
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CLASS_BOILERPLATE(Expr)
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Expr(const Scalar &x) : u_{x} {}
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template<typename A> Expr(const A &x) : u_{x} {}
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template<typename A>
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Expr(std::enable_if_t<!std::is_reference_v<A>, A> &&x) : u_{std::move(x)} {}
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template<typename A> Expr(CopyableIndirection<A> &&x) : u_{std::move(x)} {}
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std::optional<Scalar> ScalarValue() const {
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return common::GetIf<Scalar>(u_);
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}
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std::optional<Scalar> Fold(FoldingContext &c);
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private:
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std::variant<Scalar, CopyableIndirection<DataRef>,
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CopyableIndirection<FunctionRef>, Parentheses, Negate, Add, Subtract,
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Multiply, Divide, Power, IntPower, CMPLX>
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u_;
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};
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template<int KIND> class Expr<Category::Character, KIND> {
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public:
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using Result = Type<Category::Character, KIND>;
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using Scalar = typename Result::Value;
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using FoldableTrait = std::true_type;
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template<typename CRTP>
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using Bin = Binary<CRTP, Result, Expr, Expr, Scalar, Scalar>;
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struct Concat : public Bin<Concat> {
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using Bin<Concat>::Bin;
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};
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struct Max : public Bin<Max> {
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using Bin<Max>::Bin;
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};
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struct Min : public Bin<Min> {
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using Bin<Min>::Bin;
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};
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CLASS_BOILERPLATE(Expr)
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Expr(const Scalar &x) : u_{x} {}
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Expr(Scalar &&x) : u_{std::move(x)} {}
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template<typename A> Expr(const A &x) : u_{x} {}
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template<typename A>
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Expr(std::enable_if_t<!std::is_reference_v<A>, A> &&x) : u_{std::move(x)} {}
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template<typename A> Expr(CopyableIndirection<A> &&x) : u_{std::move(x)} {}
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std::optional<Scalar> ScalarValue() const {
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return common::GetIf<Scalar>(u_);
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}
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std::optional<Scalar> Fold(FoldingContext &c);
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SubscriptIntegerExpr LEN() const;
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private:
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std::variant<Scalar, CopyableIndirection<DataRef>,
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CopyableIndirection<Substring>, CopyableIndirection<FunctionRef>, Concat,
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Max, Min>
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u_;
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};
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// The Comparison class template is a helper for constructing logical
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// expressions with polymorphism over the cross product of the possible
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// categories and kinds of comparable operands.
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ENUM_CLASS(RelationalOperator, LT, LE, EQ, NE, GE, GT)
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template<typename EXPR>
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struct Comparison
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: public Binary<Comparison<EXPR>, Type<Category::Logical, 1>, EXPR, EXPR> {
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using Base = Binary<Comparison<EXPR>, Type<Category::Logical, 1>, EXPR, EXPR>;
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CLASS_BOILERPLATE(Comparison)
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Comparison(RelationalOperator r, const EXPR &a, const EXPR &b)
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: Base{a, b}, opr{r} {}
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Comparison(RelationalOperator r, EXPR &&a, EXPR &&b)
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: Base{std::move(a), std::move(b)}, opr{r} {}
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std::optional<bool> FoldScalar(FoldingContext &c,
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const typename Base::LeftScalar &, const typename Base::RightScalar &);
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RelationalOperator opr;
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};
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extern template struct Comparison<IntegerExpr<1>>;
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extern template struct Comparison<IntegerExpr<2>>;
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extern template struct Comparison<IntegerExpr<4>>;
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extern template struct Comparison<IntegerExpr<8>>;
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extern template struct Comparison<IntegerExpr<16>>;
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extern template struct Comparison<RealExpr<2>>;
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extern template struct Comparison<RealExpr<4>>;
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extern template struct Comparison<RealExpr<8>>;
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extern template struct Comparison<RealExpr<10>>;
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extern template struct Comparison<RealExpr<16>>;
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extern template struct Comparison<ComplexExpr<2>>;
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extern template struct Comparison<ComplexExpr<4>>;
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extern template struct Comparison<ComplexExpr<8>>;
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extern template struct Comparison<ComplexExpr<10>>;
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extern template struct Comparison<ComplexExpr<16>>;
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extern template struct Comparison<CharacterExpr<1>>;
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// Dynamically polymorphic comparisons whose operands are expressions of
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// the same supported kind of a particular type category.
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template<Category CAT> struct CategoryComparison {
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CLASS_BOILERPLATE(CategoryComparison)
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template<int KIND> using KindComparison = Comparison<Expr<CAT, KIND>>;
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template<int KIND> CategoryComparison(const KindComparison<KIND> &x) : u{x} {}
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template<int KIND>
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CategoryComparison(KindComparison<KIND> &&x) : u{std::move(x)} {}
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std::optional<bool> Fold(FoldingContext &c);
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typename KindsVariant<CAT, KindComparison>::type u;
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};
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// No need to distinguish the various kinds of LOGICAL expression results.
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template<> class Expr<Category::Logical, 1> {
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public:
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using Result = Type<Category::Logical, 1>;
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using Scalar = bool;
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using FoldableTrait = std::true_type;
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struct Not : Unary<Not, Result, Expr, bool> {
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using Unary<Not, Result, Expr, bool>::Unary;
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};
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template<typename CRTP>
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using Bin = Binary<CRTP, Result, Expr, Expr, bool, bool>;
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struct And : public Bin<And> {
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using Bin<And>::Bin;
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};
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struct Or : public Bin<Or> {
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using Bin<Or>::Bin;
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};
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struct Eqv : public Bin<Eqv> {
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using Bin<Eqv>::Bin;
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};
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struct Neqv : public Bin<Neqv> {
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using Bin<Neqv>::Bin;
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};
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CLASS_BOILERPLATE(Expr)
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Expr(bool x) : u_{x} {}
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template<Category CAT, int KIND>
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Expr(const Comparison<Expr<CAT, KIND>> &x) : u_{CategoryComparison<CAT>{x}} {}
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template<Category CAT, int KIND>
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Expr(Comparison<Expr<CAT, KIND>> &&x)
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: u_{CategoryComparison<CAT>{std::move(x)}} {}
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template<typename A> Expr(const A &x) : u_(x) {}
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template<typename A>
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Expr(std::enable_if_t<!std::is_reference_v<A>, A> &&x) : u_{std::move(x)} {}
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template<typename A> Expr(CopyableIndirection<A> &&x) : u_{std::move(x)} {}
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std::optional<bool> ScalarValue() const { return common::GetIf<bool>(u_); }
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std::optional<Scalar> Fold(FoldingContext &c);
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private:
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std::variant<bool, CopyableIndirection<DataRef>,
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CopyableIndirection<FunctionRef>, Not, And, Or, Eqv, Neqv,
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CategoryComparison<Category::Integer>, CategoryComparison<Category::Real>,
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CategoryComparison<Category::Complex>,
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CategoryComparison<Category::Character>>
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u_;
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};
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extern template class Expr<Category::Integer, 1>;
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extern template class Expr<Category::Integer, 2>;
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extern template class Expr<Category::Integer, 4>;
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extern template class Expr<Category::Integer, 8>;
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extern template class Expr<Category::Integer, 16>;
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extern template class Expr<Category::Real, 2>;
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extern template class Expr<Category::Real, 4>;
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extern template class Expr<Category::Real, 8>;
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extern template class Expr<Category::Real, 10>;
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extern template class Expr<Category::Real, 16>;
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extern template class Expr<Category::Complex, 2>;
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extern template class Expr<Category::Complex, 4>;
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extern template class Expr<Category::Complex, 8>;
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extern template class Expr<Category::Complex, 10>;
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extern template class Expr<Category::Complex, 16>;
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extern template class Expr<Category::Character, 1>;
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extern template class Expr<Category::Logical, 1>;
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|
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// Dynamically polymorphic expressions that can hold any supported kind
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|
// of a specific intrinsic type category.
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|
template<Category CAT> struct CategoryExpr {
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|
static constexpr Category category{CAT};
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|
using Scalar = CategoryScalar<CAT>;
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|
using FoldableTrait = std::true_type;
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|
CLASS_BOILERPLATE(CategoryExpr)
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|
template<int KIND> using KindExpr = Expr<CAT, KIND>;
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|
template<int KIND> CategoryExpr(const KindExpr<KIND> &x) : u{x} {}
|
|
template<int KIND> CategoryExpr(KindExpr<KIND> &&x) : u{std::move(x)} {}
|
|
std::optional<Scalar> ScalarValue() const;
|
|
std::optional<Scalar> Fold(FoldingContext &);
|
|
typename KindsVariant<CAT, KindExpr>::type u;
|
|
};
|
|
|
|
// A completely generic expression, polymorphic across the intrinsic type
|
|
// categories and each of their kinds.
|
|
struct GenericExpr {
|
|
using Scalar = GenericScalar;
|
|
using FoldableTrait = std::true_type;
|
|
CLASS_BOILERPLATE(GenericExpr)
|
|
template<Category CAT, int KIND>
|
|
GenericExpr(const Expr<CAT, KIND> &x) : u{CategoryExpr<CAT>{x}} {}
|
|
template<Category CAT, int KIND>
|
|
GenericExpr(Expr<CAT, KIND> &&x) : u{CategoryExpr<CAT>{std::move(x)}} {}
|
|
template<typename A> GenericExpr(const A &x) : u{x} {}
|
|
template<typename A>
|
|
GenericExpr(std::enable_if_t<!std::is_reference_v<A>, A> &&x)
|
|
: u{std::move(x)} {}
|
|
std::optional<Scalar> ScalarValue() const;
|
|
std::optional<Scalar> Fold(FoldingContext &);
|
|
int Rank() const { return 1; } // TODO
|
|
std::variant<GenericIntegerExpr, GenericRealExpr, GenericComplexExpr,
|
|
GenericCharacterExpr, LogicalExpr>
|
|
u;
|
|
};
|
|
|
|
// Convenience functions and operator overloadings for expression construction.
|
|
// These definitions are created with temporary helper macros to reduce
|
|
// C++ boilerplate. All combinations of lvalue and rvalue references are
|
|
// allowed for operands.
|
|
#define UNARY(FUNC, CONSTR) \
|
|
template<typename A> A FUNC(const A &x) { return {typename A::CONSTR{x}}; }
|
|
UNARY(Parentheses, Parentheses)
|
|
UNARY(operator-, Negate)
|
|
#undef UNARY
|
|
|
|
#define BINARY(FUNC, CONSTR) \
|
|
template<typename A> A FUNC(const A &x, const A &y) { \
|
|
return {typename A::CONSTR{x, y}}; \
|
|
} \
|
|
template<typename A> \
|
|
std::enable_if_t<!std::is_reference_v<A>, A> FUNC(const A &x, A &&y) { \
|
|
return {typename A::CONSTR{A{x}, std::move(y)}}; \
|
|
} \
|
|
template<typename A> \
|
|
std::enable_if_t<!std::is_reference_v<A>, A> FUNC(A &&x, const A &y) { \
|
|
return {typename A::CONSTR{std::move(x), A{y}}}; \
|
|
} \
|
|
template<typename A> \
|
|
std::enable_if_t<!std::is_reference_v<A>, A> FUNC(A &&x, A &&y) { \
|
|
return {typename A::CONSTR{std::move(x), std::move(y)}}; \
|
|
}
|
|
|
|
BINARY(operator+, Add)
|
|
BINARY(operator-, Subtract)
|
|
BINARY(operator*, Multiply)
|
|
BINARY(operator/, Divide)
|
|
BINARY(Power, Power)
|
|
#undef BINARY
|
|
|
|
#define BINARY(FUNC, OP) \
|
|
template<typename A> LogicalExpr FUNC(const A &x, const A &y) { \
|
|
return {Comparison<A>{OP, x, y}}; \
|
|
} \
|
|
template<typename A> \
|
|
std::enable_if_t<!std::is_reference_v<A>, LogicalExpr> FUNC( \
|
|
const A &x, A &&y) { \
|
|
return {Comparison<A>{OP, x, std::move(y)}}; \
|
|
} \
|
|
template<typename A> \
|
|
std::enable_if_t<!std::is_reference_v<A>, LogicalExpr> FUNC( \
|
|
A &&x, const A &y) { \
|
|
return {Comparison<A>{OP, std::move(x), y}}; \
|
|
} \
|
|
template<typename A> \
|
|
std::enable_if_t<!std::is_reference_v<A>, LogicalExpr> FUNC(A &&x, A &&y) { \
|
|
return {Comparison<A>{OP, std::move(x), std::move(y)}}; \
|
|
}
|
|
|
|
BINARY(operator<, RelationalOperator::LT)
|
|
BINARY(operator<=, RelationalOperator::LE)
|
|
BINARY(operator==, RelationalOperator::EQ)
|
|
BINARY(operator!=, RelationalOperator::NE)
|
|
BINARY(operator>=, RelationalOperator::GE)
|
|
BINARY(operator>, RelationalOperator::GT)
|
|
#undef BINARY
|
|
} // namespace Fortran::evaluate
|
|
#endif // FORTRAN_EVALUATE_EXPRESSION_H_
|