// Clang plugin declaration
// Copyright (C) 2024  Nguyễn Gia Phong
//
// This file is part of GoatC.
//
// GoatC is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GoatC 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GoatC.  If not, see <https://www.gnu.org/licenses/>.

#include <clang/AST/RecursiveASTVisitor.h>
#include <clang/Frontend/FrontendPluginRegistry.h>

class GoatCVisitor : public clang::RecursiveASTVisitor<GoatCVisitor> {
  clang::ASTContext* ctx;

public:
  GoatCVisitor(clang::ASTContext* ctx) : ctx {ctx}
  { }
};

class GoatCConsumer : public clang::ASTConsumer {
  clang::CompilerInstance& ci;
  /// Consuming source file that is not patched
  bool noop;

  bool HandleTopLevelDecl (clang::DeclGroupRef) override;

public:
  GoatCConsumer (clang::CompilerInstance& ci, bool noop) : ci {ci}, noop {noop}
  { }
};

class GoatCAction : public clang::PluginASTAction {
  std::string source_file;

  std::unique_ptr <clang::ASTConsumer> CreateASTConsumer
    (clang::CompilerInstance&, llvm::StringRef) override;

  bool ParseArgs (const clang::CompilerInstance&,
                  const std::vector <std::string>&) override;

  clang::PluginASTAction::ActionType getActionType () override;
};

static clang::FrontendPluginRegistry::Add <GoatCAction>
X {"goatc", "chimera breeder"};