Java example source code file (javaAssertions.hpp)

This example Java source code file (javaAssertions.hpp) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

allstatic, cheapobj, javaassertions::setsystemclassdefault, javaassertions\:\:optionlist, javaassertions\:\:setuserclassdefault, javaassertions\:\:systemclassdefault, javaassertions\:\:userclassdefault, optionlist, options, share_vm_classfile_javaassertions_hpp, tracejavaassertions, traps

The javaAssertions.hpp Java example source code

/*
 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_VM_CLASSFILE_JAVAASSERTIONS_HPP
#define SHARE_VM_CLASSFILE_JAVAASSERTIONS_HPP

#include "oops/objArrayOop.hpp"
#include "oops/typeArrayOop.hpp"
#include "utilities/exceptions.hpp"
#include "utilities/ostream.hpp"

class JavaAssertions: AllStatic {
public:
  static inline bool userClassDefault();
  static inline void setUserClassDefault(bool enabled);
  static inline bool systemClassDefault();
  static inline void setSystemClassDefault(bool enabled);

  // Add a command-line option.  A name ending in "..." applies to a package and
  // any subpackages; other names apply to a single class.
  static void addOption(const char* name, bool enable);

  // Return true if command-line options have enabled assertions for the named
  // class.  Should be called only after all command-line options have been
  // processed.  Note:  this only consults command-line options and does not
  // account for any dynamic changes to assertion status.
  static bool enabled(const char* classname, bool systemClass);

  // Create an instance of java.lang.AssertionStatusDirectives and fill in the
  // fields based on the command-line assertion options.
  static oop createAssertionStatusDirectives(TRAPS);

private:
  class OptionList;
  static void fillJavaArrays(const OptionList* p, int len, objArrayHandle names,
    typeArrayHandle status, TRAPS);

  static inline void trace(const char* name, const char* typefound,
    const char* namefound, bool enabled);

  static inline OptionList*     match_class(const char* classname);
  static OptionList*            match_package(const char* classname);

  static bool           _userDefault;   // User class default (-ea/-da).
  static bool           _sysDefault;    // System class default (-esa/-dsa).
  static OptionList*    _classes;       // Options for classes.
  static OptionList*    _packages;      // Options for package trees.
};

class JavaAssertions::OptionList: public CHeapObj<mtClass> {
public:
  inline OptionList(const char* name, bool enable, OptionList* next);

  inline const char*    name() const    { return _name; }
  inline bool           enabled() const { return _enabled; }
  inline OptionList*    next() const    { return _next; }

  static int count(OptionList* p);

private:
  const char*   _name;
  OptionList*   _next;
  bool          _enabled;
};

inline bool JavaAssertions::userClassDefault() {
  return _userDefault;
}

inline void JavaAssertions::setUserClassDefault(bool enabled) {
  if (TraceJavaAssertions)
    tty->print_cr("JavaAssertions::setUserClassDefault(%d)", enabled);
  _userDefault = enabled;
}

inline bool JavaAssertions::systemClassDefault() {
  return _sysDefault;
}

inline void JavaAssertions::setSystemClassDefault(bool enabled) {
  if (TraceJavaAssertions)
    tty->print_cr("JavaAssertions::setSystemClassDefault(%d)", enabled);
  _sysDefault = enabled;
}

#endif // SHARE_VM_CLASSFILE_JAVAASSERTIONS_HPP