wehub-resource-sync
95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
// Copyright (c) 2024 PaddlePaddle Authors. 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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#pragma once
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#include <functional>
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#include <optional>
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#include <vector>
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#include "paddle/ap/include/axpr/adt.h"
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#include "paddle/ap/include/axpr/atomic.h"
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namespace ap::axpr {
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template <typename Expr>
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struct IfImpl {
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Atomic<Expr> cond;
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Expr true_expr;
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Expr false_expr;
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bool operator==(const IfImpl& other) const {
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return (this->cond == other.cond) &&
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(this->true_expr == other.false_expr) &&
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(this->false_expr == other.false_expr);
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}
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};
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template <typename Expr>
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ADT_DEFINE_RC(If, const IfImpl<Expr>);
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template <typename Expr>
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using CombinedBase = std::variant<Call<Expr>, If<Expr>>;
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template <typename Expr>
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struct Combined : public CombinedBase<Expr> {
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using CombinedBase<Expr>::CombinedBase;
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ADT_DEFINE_VARIANT_METHODS(CombinedBase<Expr>);
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};
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template <typename Expr>
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struct Bind {
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tVar<std::string> var;
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Combined<Expr> val;
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bool operator==(const Bind& other) const {
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return this->var == other.var && this->val == other.val;
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}
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};
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template <typename Expr>
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struct LetImpl {
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std::vector<Bind<Expr>> bindings;
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Expr body;
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bool operator==(const LetImpl& other) const {
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return this->bindings == other.bindings && this->body == other.body;
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}
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};
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template <typename Expr>
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ADT_DEFINE_RC(Let, const LetImpl<Expr>);
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struct AnfExpr;
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// expr := aexpr | cexpr | let [VAR cexpr] expr
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// cexpr := (aexpr aexpr ...) | (If aexpr expr expr)
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using AnfExprBase =
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std::variant<Atomic<AnfExpr>, Combined<AnfExpr>, Let<AnfExpr>>;
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// A-norm form
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struct AnfExpr : public AnfExprBase {
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using AnfExprBase::AnfExprBase;
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ADT_DEFINE_VARIANT_METHODS(AnfExprBase);
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static constexpr const char* kString() { return "str"; }
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static constexpr const char* kLambda() { return "lambda"; }
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static constexpr const char* kIf() { return "if"; }
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static constexpr const char* kLet() { return "__builtin_let__"; }
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std::string DumpToJsonString() const;
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std::string DumpToJsonString(int indent) const;
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};
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} // namespace ap::axpr
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