arrays.jrag

JDK1.4编译器前端

/*
 * The JastAdd Extensible Java Compiler (http://jastadd.org) is covered
 * by the modified BSD License. You should have received a copy of the
 * modified BSD license with this compiler.
 * 
 * Copyright (c) 2005-2008, Torbjorn Ekman
 * All rights reserved.
 */

aspect Arrays {
  syn lazy int TypeDecl.dimension() = 0;
  eq ArrayDecl.dimension() = componentType().dimension() + 1;
  
  // TypeDecl.elementType() - the ground type that the array is based on
  syn lazy TypeDecl TypeDecl.elementType() = this;
  eq ArrayDecl.elementType() = componentType().elementType();

  // TypeDecl.componentType() -  the elements in an array has this type
  eq Program.getChild().componentType() = unknownType();
  eq TypeDecl.arrayType().componentType() = this;
  inh lazy TypeDecl TypeDecl.componentType();

  syn nta TypeDecl TypeDecl.arrayType() {
    String name = name() + "[]";
    TypeDecl typeDecl =
      new ArrayDecl(
        new Modifiers(new List().add(new Modifier("public"))),
        name,
        new Opt(typeObject().createQualifiedAccess()), // [SuperClassAccess]
        new List().add(typeCloneable().createQualifiedAccess()).add(typeSerializable().createQualifiedAccess()), // Implements*
        new List().add( // BodyDecl*
          new FieldDeclaration(
            new Modifiers(new List().add(new Modifier("public")).add(new Modifier("final"))),
            new PrimitiveTypeAccess("int"),
            "length",
            new Opt() // [Init:Expr]
          )).add(
          new MethodDecl(
            new Modifiers(new List().add(new Modifier("public"))),
            typeObject().createQualifiedAccess(),
            "clone",
            new List(),
            new List(),
            new Opt(new Block())
          )
        )
      );
    return typeDecl;
  }
  inh TypeDecl TypeDecl.typeCloneable();
  inh TypeDecl TypeDecl.typeSerializable();
  
  eq ArrayDecl.name() = fullName();
  eq ArrayDecl.fullName() = getID();

  syn lazy String ArrayTypeAccess.getPackage() = getAccess().type().packageName();
  syn lazy String ArrayTypeAccess.getID() = getAccess().type().name();

  public Access ArrayDecl.createQualifiedAccess() {
    return new ArrayTypeAccess(componentType().createQualifiedAccess());
  }
}