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/**
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* forspll - LLVM-based Forsp compiler
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* Copyright (C) 2024 Clyne Sullivan <clyne@bitgloo.com>
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "var.hpp"
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std::list<std::map<std::string, Var>> Var::vars;
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Var Var::lookup(const std::string& name, int skip)
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{
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for (auto sc = vars.rbegin(); sc != vars.rend(); ++sc) {
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if (skip > 0) {
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--skip;
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continue;
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}
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if (sc->contains(name))
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return (*sc)[name];
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}
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return {};
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}
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Var Var::lookupLocal(const std::string& name)
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{
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return vars.back().contains(name) ? vars.back()[name] : Var();
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}
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void Var::pushScope()
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{
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vars.emplace_back();
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}
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void Var::popScope()
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{
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vars.pop_back();
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}
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Var& Var::addGlobal(const std::string& name, Var var)
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{
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return vars.front().emplace(name, var).first->second;
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}
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Var& Var::addLocal(const std::string& name, Var var)
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{
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return vars.back().emplace(name, var).first->second;
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}
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