source: src/CodeGen/Generate.cc@ 790d835

//
// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// Generate.cc --
//
// Author           : Richard C. Bilson
// Created On       : Mon May 18 07:44:20 2015
// Last Modified By : Peter A. Buhr
// Last Modified On : Sun Feb 16 03:01:51 2020
// Update Count     : 9
//
#include "Generate.h"

#include <iostream>                  // for ostream, endl, operator<<
#include <list>                      // for list
#include <string>                    // for operator<<

#include "CodeGeneratorNew.hpp"      // for CodeGenerator_new, doSemicolon, ...
#include "CodeGenerator.h"           // for CodeGenerator, doSemicolon, oper...
#include "GenType.h"                 // for genPrettyType
#include "Common/PassVisitor.h"      // for PassVisitor
#include "SynTree/LinkageSpec.h"     // for isBuiltin, isGeneratable
#include "SynTree/BaseSyntaxNode.h"  // for BaseSyntaxNode
#include "SynTree/Declaration.h"     // for Declaration
#include "SynTree/Type.h"            // for Type

using namespace std;

namespace CodeGen {
        namespace {
                /// Removes misc. nodes that should not exist in CodeGen
                struct TreeCleaner {
                        void premutate( CompoundStmt * stmt );
                        Statement * postmutate( ImplicitCtorDtorStmt * stmt );

                        static bool shouldClean( Declaration * );
                };

                void cleanTree( std::list< Declaration * > & translationUnit ) {
                        PassVisitor<TreeCleaner> cleaner;
                        filter( translationUnit, [](Declaration * decl) { return TreeCleaner::shouldClean(decl); }, false );
                        mutateAll( translationUnit, cleaner );
                } // cleanTree
        } // namespace

        void generate( std::list< Declaration* > translationUnit, std::ostream &os, bool doIntrinsics, bool pretty, bool generateC, bool lineMarks, bool printExprTypes ) {
                cleanTree( translationUnit );

                PassVisitor<CodeGenerator> cgv( os, pretty, generateC, lineMarks, printExprTypes );
                for ( auto & dcl : translationUnit ) {
                        if ( LinkageSpec::isGeneratable( dcl->get_linkage() ) && (doIntrinsics || ! LinkageSpec::isBuiltin( dcl->get_linkage() ) ) ) {
                                cgv.pass.updateLocation( dcl );
                                dcl->accept(cgv);
                                if ( doSemicolon( dcl ) ) {
                                        os << ";";
                                } // if
                                os << cgv.pass.endl;
                        } // if
                } // for
        }

        void generate( BaseSyntaxNode * node, std::ostream & os ) {
                if ( Type * type = dynamic_cast< Type * >( node ) ) {
                        os << genPrettyType( type, "" );
                } else {
                        PassVisitor<CodeGenerator> cgv( os, true, false, false, false );
                        node->accept( cgv );
                }
                os << std::endl;
        }

        namespace {
                void TreeCleaner::premutate( CompoundStmt * cstmt ) {
                        filter( cstmt->kids, [](Statement * stmt) {
                                if ( DeclStmt * declStmt = dynamic_cast< DeclStmt * >( stmt ) ) {
                                        return shouldClean( declStmt->decl );
                                }
                                return false;
                        }, false );
                }

                Statement * TreeCleaner::postmutate( ImplicitCtorDtorStmt * stmt ) {
                        Statement * callStmt = nullptr;
                        std::swap( stmt->callStmt, callStmt );
                        delete stmt;
                        return callStmt;
                }

                bool TreeCleaner::shouldClean( Declaration * decl ) {
                        return dynamic_cast< TraitDecl * >( decl );
                }
        } // namespace

namespace {
        bool shouldClean( ast::Decl const * decl ) {
                return dynamic_cast<ast::TraitDecl const *>( decl );
        }

        /// Removes various nodes that should not exist in CodeGen.
        struct TreeCleaner_new {
                ast::CompoundStmt const * previsit( ast::CompoundStmt const * stmt ) {
                        auto mutStmt = ast::mutate( stmt );
                        erase_if( mutStmt->kids, []( ast::Stmt const * stmt ){
                                auto declStmt = dynamic_cast<ast::DeclStmt const *>( stmt );
                                return ( declStmt ) ? shouldClean( declStmt->decl ) : false;
                        } );
                        return mutStmt;
                }

                ast::Stmt const * postvisit( ast::ImplicitCtorDtorStmt const * stmt ) {
                        return stmt->callStmt;
                }
        };
} // namespace

void generate( ast::TranslationUnit & translationUnit, std::ostream & os, bool doIntrinsics,
                bool pretty, bool generateC, bool lineMarks, bool printExprTypes ) {
        erase_if( translationUnit.decls, shouldClean );
        ast::Pass<TreeCleaner_new>::run( translationUnit );

        ast::Pass<CodeGenerator_new> cgv( os,
                        Options( pretty, generateC, lineMarks, printExprTypes ) );
        for ( auto & decl : translationUnit.decls ) {
                if ( decl->linkage.is_generatable && (doIntrinsics || !decl->linkage.is_builtin ) ) {
                        cgv.core.updateLocation( decl );
                        decl->accept( cgv );
                        if ( doSemicolon( decl ) ) {
                                os << ";";
                        }
                        os << cgv.core.endl;
                }
        }
}

} // namespace CodeGen

// Local Variables: //
// tab-width: 4 //
// mode: c++ //
// compile-command: "make install" //
// End: //