de.uni.bremen.monty.moco.codegeneration.CodeWriter.java Source code

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Here is the source code for de.uni.bremen.monty.moco.codegeneration.CodeWriter.java

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/*
 * moco, the Monty Compiler
 * Copyright (c) 2013-2014, Monty's Coconut, All rights reserved.
 *
 * This file is part of moco, the Monty Compiler.
 *
 * moco 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 3.0 of the License, or (at your option) any later version.
 *
 * moco 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.
 *
 * Linking this program and/or its accompanying libraries statically or
 * dynamically with other modules is making a combined work based on this
 * program. Thus, the terms and conditions of the GNU General Public License
 * cover the whole combination.
 *
 * As a special exception, the copyright holders of moco give
 * you permission to link this programm and/or its accompanying libraries
 * with independent modules to produce an executable, regardless of the
 * license terms of these independent modules, and to copy and distribute the
 * resulting executable under terms of your choice, provided that you also meet,
 * for each linked independent module, the terms and conditions of the
 * license of that module.
 *
 * An independent module is a module which is not
 * derived from or based on this program and/or its accompanying libraries.
 * If you modify this library, you may extend this exception to your version of
 * the program or library, but you are not obliged to do so. If you do not wish
 * to do so, delete this exception statement from your version.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library.
 */
package de.uni.bremen.monty.moco.codegeneration;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOUtils;

import de.uni.bremen.monty.moco.util.Params;

public class CodeWriter {

    private final OutputStream llOutputStream;

    public CodeWriter(Params params) throws IOException {
        this.llOutputStream = initLlvmOutput(params);
        IOUtils.copy(getClass().getResourceAsStream("/std_llvm_include.ll"), this.llOutputStream);
    }

    private OutputStream initLlvmOutput(Params params) throws FileNotFoundException {
        OutputStream llOutputStream;
        if (params.isGenerateOnlyLLVM()) {
            if (params.getOutputFile() == null) {
                //llOutputStream = System.out;
                llOutputStream = new NopOutputStream();
            } else {
                llOutputStream = new FileOutputStream(params.getOutputFile());
            }
        } else {
            String llFile;
            if (params.getInputFile() != null) {
                llFile = FilenameUtils.removeExtension(params.getInputFile()) + ".ll";
            } else {
                llFile = params.getInputFolder() + "/Main.ll";
            }
            llOutputStream = new FileOutputStream(llFile);
            params.setLlFile(llFile);
        }
        return llOutputStream;
    }

    public void write(String data) throws IOException {
        this.llOutputStream.write(data.getBytes());
        this.llOutputStream.flush();
    }
}