splitter.h

/*
 * SPDX-FileCopyrightText: 2025 Altera Corporation
 * Copyright 2025-present Altera Corporation.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef IR_SPLITTER_H_
#define IR_SPLITTER_H_
 
#include "ir/ir.h"
#include "ir/visitor.h"
 
namespace P4 {
 
class NameGenerator;
class TypeMap;
 
template <typename Node>
struct SplitResult {
    const Node *before = nullptr;
    const Node *after = nullptr;
    std::vector<const IR::Declaration *> hoistedDeclarations;

    explicit operator bool() const { return after; }
    void clear() {
        before = after = nullptr;
        hoistedDeclarations.clear();
    }
};

SplitResult<IR::Statement> splitStatementBefore(
    const IR::Statement *stat,
    std::function<bool(const IR::Statement *, const P4::Visitor_Context *)> predicate,
    P4::NameGenerator &nameGen, P4::TypeMap *typeMap = nullptr);
 
}  // namespace P4
 
#endif  // IR_SPLITTER_H_