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package org.netbeans.modules.jackpot30.backend.language.api;

import com.sun.tools.javac.api.JavacTaskImpl;

import com.sun.tools.javac.api.JavacTool;

import com.sun.tools.javac.main.JavaCompiler;

import com.sun.tools.javac.util.Context;

import java.io.IOException;

import java.io.PrintWriter;

import java.io.Writer;

import java.util.ArrayList;

import java.util.List;

import javax.tools.DiagnosticListener;

import javax.tools.JavaFileManager;

import javax.tools.JavaFileObject;

import org.netbeans.lib.nbjavac.services.NBAttr;

import org.netbeans.lib.nbjavac.services.NBClassReader;

import org.netbeans.lib.nbjavac.services.NBClassWriter;

import org.netbeans.lib.nbjavac.services.NBJavacTrees;

import org.netbeans.lib.nbjavac.services.NBJavadocEnter;

import org.netbeans.lib.nbjavac.services.NBJavadocMemberEnter;

import org.netbeans.lib.nbjavac.services.NBMessager;

import org.netbeans.lib.nbjavac.services.NBParserFactory;

import org.netbeans.lib.nbjavac.services.NBTreeMaker;

import org.netbeans.modules.jackpot30.resolve.api.JavacCreator;

import org.openide.util.lookup.ServiceProvider;

/**

 *

 * @author lahvac

 */

@ServiceProvider(service = JavacCreator.class)

public class JavacCreatorImpl extends JavacCreator {

    @Override

    protected JavacTaskImpl doCreate(Writer out, JavaFileManager fileManager, DiagnosticListener<? super JavaFileObject> diagnosticListener, Iterable<String> options, Iterable<String> classes, Iterable<? extends JavaFileObject> compilationUnits) {

        List<String> realOptions = new ArrayList<String>();

        for (String option : options) {

            realOptions.add(option);

        }

        realOptions.add("-Xjcov"); //NOI18N, Make the compiler store end positions

        realOptions.add("-XDallowStringFolding=false"); //NOI18N

        realOptions.add("-XDshouldStopPolicy=GENERATE");   // NOI18N, parsing should not stop in phase where an error is found

        realOptions.add("-XDsuppressAbortOnBadClassFile=true");

        realOptions.add("-XDkeepComments=true"); //NOI18N

        Context context = new Context();

        //need to preregister the Messages here, because the getTask below requires Log instance:

        NBMessager.preRegister(context, null, DEV_NULL, DEV_NULL, DEV_NULL);

        JavacTaskImpl task = (JavacTaskImpl) JavacTool.create().getTask(out, fileManager, diagnosticListener, realOptions, classes, compilationUnits, context);

        NBClassReader.preRegister(context, true);

        NBAttr.preRegister(context);

        NBClassWriter.preRegister(context);

        NBParserFactory.preRegister(context);

        NBTreeMaker.preRegister(context);

        NBJavacTrees.preRegister(context);

        NBJavadocEnter.preRegister(context);

        NBJavadocMemberEnter.preRegister(context);

        return task;

    }

    private static final PrintWriter DEV_NULL = new PrintWriter(new NullWriter(), false);

    private static class NullWriter extends Writer {

        public void write(char[] cbuf, int off, int len) throws IOException {

        }

        public void flush() throws IOException {

        }

        public void close() throws IOException {

        }

    }

}