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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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// ASM: a very small and fast Java bytecode manipulation framework
// Copyright (c) 2000-2011 INRIA, France Telecom
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 3. Neither the name of the copyright holders nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.

package aj.org.objectweb.asm.commons;

import aj.org.objectweb.asm.ModuleVisitor;
import aj.org.objectweb.asm.Opcodes;

/**
 * A {@link ModuleVisitor} that remaps types with a {@link Remapper}.
 *
 * @author Remi Forax
 */
public class ModuleRemapper extends ModuleVisitor {

  /** The remapper used to remap the types in the visited module. */
  protected final Remapper remapper;

  /**
   * Constructs a new {@link ModuleRemapper}. Subclasses must not use this constructor.
   * Instead, they must use the {@link #ModuleRemapper(int,ModuleVisitor,Remapper)} version.
   *
   * @param moduleVisitor the module visitor this remapper must delegate to.
   * @param remapper the remapper to use to remap the types in the visited module.
   */
  public ModuleRemapper(final ModuleVisitor moduleVisitor, final Remapper remapper) {
    this(/* latest api = */ Opcodes.ASM9, moduleVisitor, remapper);
  }

  /**
   * Constructs a new {@link ModuleRemapper}.
   *
   * @param api the ASM API version supported by this remapper. Must be one of the {@code
   *     ASM}x values in {@link Opcodes}.
   * @param moduleVisitor the module visitor this remapper must delegate to.
   * @param remapper the remapper to use to remap the types in the visited module.
   */
  protected ModuleRemapper(
      final int api, final ModuleVisitor moduleVisitor, final Remapper remapper) {
    super(api, moduleVisitor);
    this.remapper = remapper;
  }

  @Override
  public void visitMainClass(final String mainClass) {
    super.visitMainClass(remapper.mapType(mainClass));
  }

  @Override
  public void visitPackage(final String packaze) {
    super.visitPackage(remapper.mapPackageName(packaze));
  }

  @Override
  public void visitRequire(final String module, final int access, final String version) {
    super.visitRequire(remapper.mapModuleName(module), access, version);
  }

  @Override
  public void visitExport(final String packaze, final int access, final String... modules) {
    String[] remappedModules = null;
    if (modules != null) {
      remappedModules = new String[modules.length];
      for (int i = 0; i < modules.length; ++i) {
        remappedModules[i] = remapper.mapModuleName(modules[i]);
      }
    }
    super.visitExport(remapper.mapPackageName(packaze), access, remappedModules);
  }

  @Override
  public void visitOpen(final String packaze, final int access, final String... modules) {
    String[] remappedModules = null;
    if (modules != null) {
      remappedModules = new String[modules.length];
      for (int i = 0; i < modules.length; ++i) {
        remappedModules[i] = remapper.mapModuleName(modules[i]);
      }
    }
    super.visitOpen(remapper.mapPackageName(packaze), access, remappedModules);
  }

  @Override
  public void visitUse(final String service) {
    super.visitUse(remapper.mapType(service));
  }

  @Override
  public void visitProvide(final String service, final String... providers) {
    String[] remappedProviders = new String[providers.length];
    for (int i = 0; i < providers.length; ++i) {
      remappedProviders[i] = remapper.mapType(providers[i]);
    }
    super.visitProvide(remapper.mapType(service), remappedProviders);
  }
}