forspll/var.hpp

/**
 * forspll - LLVM-based Forsp compiler
 * Copyright (C) 2024  Clyne Sullivan <clyne@bitgloo.com>
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef FORSPLL_VAR_HPP
#define FORSPLL_VAR_HPP

#include <llvm/IR/Type.h>
#include <llvm/IR/DerivedTypes.h>

#include <list>
#include <map>
#include <string>

struct Var {
    llvm::Value *value;
    bool native;

    Var(llvm::Value *v = nullptr, bool n = false):
        value(v), native(n) {}

    static std::list<std::map<std::string, Var>> vars;

    static Var lookup(const std::string& name, int skip = 0);
    static Var lookupLocal(const std::string& name);
    static void rename(const std::string& old, const std::string& neww, int skip = 0);
    static void pushScope();
    static void popScope();
    static Var& addGlobal(const std::string& name, Var var);
    static Var& addLocal(const std::string& name, Var var);
};

#endif // FORSPLL_VAR_HPP