boundnames.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 BoundNames {
  public Access FieldDeclaration.createQualifiedBoundAccess() {
    if(isStatic())
      return hostType().createQualifiedAccess().qualifiesAccess(new BoundFieldAccess(this));
    else
      return new ThisAccess("this").qualifiesAccess(
        new BoundFieldAccess(this));
  }

  // The memberMethods(String name) attribute is used to lookup member methods.
  // It uses the methodsNameMap() map where a name is mapped to a list of member
  // methods. We extend the map with the declaration m by either appending
  // it to an existing list of declarations or adding a new list. That list
  // will be used to name bind a new qualified name access.
  public MethodDecl TypeDecl.addMemberMethod(MethodDecl m) {
    addBodyDecl(m);
    return (MethodDecl)getBodyDecl(getNumBodyDecl()-1);
    /*
    HashMap map = methodsNameMap();
    ArrayList list = (ArrayList)map.get(m.name());
    if(list == null) {
      list = new ArrayList(4);
      map.put(m.name(), list);
    }
    list.add(m);
    if(!memberMethods(m.name()).contains(m))
      throw new Error("The method " + m.signature() + " added to " + typeName() + " can not be found using lookupMemberMethod");
    */
  }

  public ConstructorDecl TypeDecl.addConstructor(ConstructorDecl c) {
    addBodyDecl(c);
    return (ConstructorDecl)getBodyDecl(getNumBodyDecl()-1);
  }

  public ClassDecl TypeDecl.addMemberClass(ClassDecl c) {
    addBodyDecl(new MemberClassDecl(c));
    return ((MemberClassDecl)getBodyDecl(getNumBodyDecl()-1)).getClassDecl();
  }


  // the new field must be unique otherwise an error occurs
  public FieldDeclaration TypeDecl.addMemberField(FieldDeclaration f) {
    addBodyDecl(f);
    return (FieldDeclaration)getBodyDecl(getNumBodyDecl()-1);
    //if(!memberFields(f.name()).contains(f))
    //  throw new Error("The field " + f.name() + " added to " + typeName() + " can not be found using lookupMemberField");
  }

  // A BoundMethodAccess is a MethodAccess where the name analysis is bypassed by explicitly setting the desired binding
  // this is useful when name binding is cached and recomputation is undesired
  public BoundMethodAccess.BoundMethodAccess(String name, List args, MethodDecl methodDecl) {
    this(name, args);
    this.methodDecl = methodDecl;
  }
  private MethodDecl BoundMethodAccess.methodDecl;
  eq BoundMethodAccess.decl() = methodDecl;

  public BoundFieldAccess.BoundFieldAccess(FieldDeclaration f) {
    this(f.name(), f);
  }

  eq BoundFieldAccess.decl() = getFieldDeclaration();
  public boolean BoundFieldAccess.isExactVarAccess() {
    return false;
  }

  public Access MethodDecl.createBoundAccess(List args) {
    if(isStatic()) {
      return hostType().createQualifiedAccess().qualifiesAccess(
        new BoundMethodAccess(name(), args, this)
      );
    }
    return new BoundMethodAccess(name(), args, this);
  }

  public Access FieldDeclaration.createBoundFieldAccess() {
    return createQualifiedBoundAccess();
  }

  public TypeAccess TypeDecl.createBoundAccess() {
    return new BoundTypeAccess("", name(), this);
  }
  eq BoundTypeAccess.decls() = SimpleSet.emptySet.add(getTypeDecl());
}