OS390CCompiler.java

/*
 * #%L
 * Native ARchive plugin for Maven
 * %%
 * Copyright (C) 2002 - 2014 NAR Maven Plugin developers.
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
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 */
package com.github.maven_nar.cpptasks.os390;

import java.io.File;
import java.util.Vector;

import org.apache.tools.ant.types.Environment;

import com.github.maven_nar.cpptasks.CUtil;
import com.github.maven_nar.cpptasks.CompilerDef;
import com.github.maven_nar.cpptasks.OptimizationEnum;
import com.github.maven_nar.cpptasks.compiler.AbstractCompiler;
import com.github.maven_nar.cpptasks.compiler.CommandLineCCompiler;
import com.github.maven_nar.cpptasks.compiler.LinkType;
import com.github.maven_nar.cpptasks.compiler.Linker;
import com.github.maven_nar.cpptasks.compiler.Processor;
import com.github.maven_nar.cpptasks.types.UndefineArgument;

/**
 * Adapter for the IBM (R) OS/390 (tm) C++ Compiler
 *
 * @author Hiram Chirino (cojonudo14@hotmail.com)
 */
public class OS390CCompiler extends CommandLineCCompiler {
  private static final AbstractCompiler instance = new OS390CCompiler(false, null);

  public static AbstractCompiler getInstance() {
    return instance;
  }

  private OS390CCompiler(final boolean newEnvironment, final Environment env) {
    super("cxx", null, new String[] {
        ".c", ".cc", ".cpp", ".cxx", ".c++", ".s"
    }, new String[] {
        ".h", ".hpp"
    }, ".o", false, null, newEnvironment, env);
  }

  @Override
  protected void addImpliedArgs(final Vector<String> args, final boolean debug, final boolean multithreaded,
      final boolean exceptions, final LinkType linkType, final Boolean rtti, final OptimizationEnum optimization) {
    // Specifies that only compilations and assemblies be done.
    // Link-edit is not done
    args.addElement("-c");
    args.addElement("-W");
    args.addElement("c,NOEXPMAC,NOSHOWINC");
    /*
     * if (exceptions) { args.addElement("/GX"); }
     */
    if (debug) {
      args.addElement("-g");
      args.addElement("-D");
      args.addElement("_DEBUG");
      /*
       * if (multithreaded) { args.addElement("/D_MT"); if (staticLink) {
       * args.addElement("/MTd"); } else { args.addElement("/MDd");
       * args.addElement("/D_DLL"); } } else { args.addElement("/MLd"); }
       */
    } else {
      args.addElement("-D");
      args.addElement("NEBUG");
      /*
       * if (multithreaded) { args.addElement("/D_MT"); if (staticLink) {
       * args.addElement("/MT"); } else { args.addElement("/MD");
       * args.addElement("/D_DLL"); } } else { args.addElement("/ML"); }
       */
    }
  }

  @Override
  protected void addWarningSwitch(final Vector<String> args, final int level) {
    OS390Processor.addWarningSwitch(args, level);
  }

  /**
   * The buildDefineArguments implementation CommandLineCCompiler is not good
   * for us because os390 defines are give by -D definex instead of
   * /Ddefinex, 2 args not 1! since we implement this ourslefs, we do not
   * have to implement the getDefineSwitch() and the getUndefineSwitch().
   */
  @Override
  protected void buildDefineArguments(final CompilerDef[] defs, final Vector<String> args) {
    //
    // assume that we aren't inheriting defines from containing <cc>
    //
    UndefineArgument[] merged = defs[0].getActiveDefines();
    for (int i = 1; i < defs.length; i++) {
      //
      // if we are inheriting, merge the specific defines with the
      // containing defines
      merged = UndefineArgument.merge(defs[i].getActiveDefines(), merged);
    }
    final StringBuffer buf = new StringBuffer(30);
    for (final UndefineArgument current : merged) {
      buf.setLength(0);
      if (current.isDefine()) {
        args.addElement("-D");
        buf.append(current.getName());
        if (current.getValue() != null && current.getValue().length() > 0) {
          buf.append('=');
          buf.append(current.getValue());
        }
        args.addElement(buf.toString());
      } else {
        args.addElement("-U");
        args.addElement(current.getName());
      }
    }
  }

  @Override
  public Processor changeEnvironment(final boolean newEnvironment, final Environment env) {
    if (newEnvironment || env != null) {
      return new OS390CCompiler(newEnvironment, env);
    }
    return this;
  }

  @Override
  protected void getDefineSwitch(final StringBuffer buffer, final String define, final String value) {
  }

  @Override
  protected File[] getEnvironmentIncludePath() {
    return CUtil.getPathFromEnvironment("INCLUDE", ":");
  }

  @Override
  protected String getIncludeDirSwitch(final String includeDir) {
    return OS390Processor.getIncludeDirSwitch(includeDir);
  }

  @Override
  public Linker getLinker(final LinkType type) {
    return OS390Linker.getInstance().getLinker(type);
  }

  @Override
  public int getMaximumCommandLength() {
    return Integer.MAX_VALUE;
  }

  /* Only compile one file at time for now */
  @Override
  protected int getMaximumInputFilesPerCommand() {
    return Integer.MAX_VALUE;
  }

  @Override
  protected void getUndefineSwitch(final StringBuffer buffer, final String define) {
  }
}