diff options
| author | Tom Tromey <tromey@redhat.com> | 2001-11-14 22:42:42 +0000 |
|---|---|---|
| committer | Tom Tromey <tromey@gcc.gnu.org> | 2001-11-14 22:42:42 +0000 |
| commit | 81bc01c265b5115163d06812174653e1db13d537 (patch) | |
| tree | 9920797685b7e32b45ec0c20d4ab6d559e176429 /libjava/java/lang/reflect/Modifier.java | |
| parent | 0f7a7be7ceaf26e2355a8f623d0986a2cde145ab (diff) | |
Re-merges with Classpath, from various people:
* java/lang/reflect/Modifier.java: Reindented.
(toString): Only trim trailing space if text was added to
StringBuffer.
* java/lang/reflect/ReflectPermission: Reindented.
From-SVN: r47028
Diffstat (limited to 'libjava/java/lang/reflect/Modifier.java')
| -rw-r--r-- | libjava/java/lang/reflect/Modifier.java | 212 |
1 files changed, 124 insertions, 88 deletions
diff --git a/libjava/java/lang/reflect/Modifier.java b/libjava/java/lang/reflect/Modifier.java index 2724057474b..5daa1275a37 100644 --- a/libjava/java/lang/reflect/Modifier.java +++ b/libjava/java/lang/reflect/Modifier.java @@ -27,12 +27,6 @@ executable file might be covered by the GNU General Public License. */ package java.lang.reflect; -/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3 - * "The Java Language Specification", ISBN 0-201-63451-1 - * plus online API docs for JDK 1.2 beta from http://www.javasoft.com. - * Status: Believed complete and correct to version 1.2. - */ - /** * Modifier is a helper class with static methods to determine whether an * int returned from getModifiers() represents static, public, protected, @@ -46,12 +40,13 @@ package java.lang.reflect; * * @author John Keiser * @author Tom Tromey <tromey@cygnus.com> - * + * @author Eric Blake <ebb9@email.byu.edu> * @see Member#getModifiers() * @see Method#getModifiers() * @see Field#getModifiers() * @see Constructor#getModifiers() * @see Class#getModifiers() + * @since 1.1 */ public class Modifier { @@ -60,226 +55,267 @@ public class Modifier * worthless. However, this function is in the 1.1 spec, so it is added * for completeness.</STRONG> */ - public Modifier() {} + public Modifier() + { + } - /** Public: accessible from any other class. **/ + /** + * Public: accessible from any other class. + */ public static final int PUBLIC = 0x0001; - /** Private: accessible only from the declaring class. **/ + /** + * Private: accessible only from the same enclosing class. + */ public static final int PRIVATE = 0x0002; - /** Protected: accessible only to subclasses. **/ + /** + * Protected: accessible only to subclasses, or within the package. + */ public static final int PROTECTED = 0x0004; - /** Static: field or method - can be accessed or invoked without an - instance of the declaring class. **/ + /** + * Static:<br><ul> + * <li>Class: no enclosing instance for nested class.</li> + * <li>Field or Method: can be accessed or invoked without an + * instance of the declaring class.</li> + * </ul> + */ public static final int STATIC = 0x0008; - /** Final:<BR> - * <UL> - * <LI> Class: no subclasses allowed. </LI> - * <LI> Field: cannot be changed. </LI> - * <LI> Method: cannot be overriden. </LI> - * </UL> + /** + * Final:<br><ul> + * <li>Class: no subclasses allowed.</li> + * <li>Field: cannot be changed.</li> + * <li>Method: cannot be overriden.</li> + * </ul> */ public static final int FINAL = 0x0010; - /** Synchronized: lock the class while calling this method. **/ + /** + * Synchronized: Method: lock the class while calling this method. + */ public static final int SYNCHRONIZED = 0x0020; - /** Volatile: cannot be cached.<P> **/ + /** + * Volatile: Field: cannot be cached. + */ public static final int VOLATILE = 0x0040; - /** Transient: not serialized or deserialized. **/ + /** + * Transient: Field: not serialized or deserialized. + */ public static final int TRANSIENT = 0x0080; - /** Native: use JNI to call this method. **/ + /** + * Native: Method: use JNI to call this method. + */ public static final int NATIVE = 0x0100; - /** Interface: is an interface. **/ + /** + * Interface: Class: is an interface. + */ public static final int INTERFACE = 0x0200; - /** Abstract: class - may not be instantiated; - method - may not be called. **/ + /** + * Abstract:<br><ul> + * <li>Class: may not be instantiated.</li> + * <li>Method: may not be called.</li> + * </ul> + */ public static final int ABSTRACT = 0x0400; - /** Class or method - expressions are FP-strict. **/ + /** + * Strictfp: Method: expressions are FP-strict.<p> + * Also used as a modifier for classes, to mean that all initializers + * and constructors are FP-strict, but does not show up in + * Class.getModifiers. + */ public static final int STRICT = 0x0800; - /* NOTE: THIS IS HERE BECAUSE IT IS IN THE VM SPEC. - I INCLUDE IT FOR COMPLETENESS. IT ATTACHES TO A CLASS AND MEANS - "Treat superclasses specially in invokespecial". Note that it is the - same as synchronized. Reuse of the constant. *shudder* */ - private static final int SUPER = 0x0020; + /** + * Super - treat invokespecial as polymorphic so that super.foo() works + * according to the JLS. This is a reuse of the synchronized constant + * to patch a hole in JDK 1.0. *shudder*. + */ + static final int SUPER = 0x0020; - // This can only used by other code in this package, so it is not public. + /** + * All the flags, only used by code in this package. + */ static final int ALL_FLAGS = 0xfff; - /** Check whether the given modifier is abstract. + /** + * Check whether the given modifier is abstract. * @param mod the modifier. * @return <code>true</code> if abstract, <code>false</code> otherwise. */ - public static boolean isAbstract (int mod) + public static boolean isAbstract(int mod) { return (mod & ABSTRACT) != 0; } - /** Check whether the given modifier is final. + /** + * Check whether the given modifier is final. * @param mod the modifier. * @return <code>true</code> if final, <code>false</code> otherwise. */ - public static boolean isFinal (int mod) + public static boolean isFinal(int mod) { return (mod & FINAL) != 0; } - /** Check whether the given modifier is an interface. + /** + * Check whether the given modifier is an interface. * @param mod the modifier. * @return <code>true</code> if an interface, <code>false</code> otherwise. */ - public static boolean isInterface (int mod) + public static boolean isInterface(int mod) { return (mod & INTERFACE) != 0; } - /** Check whether the given modifier is native. + /** + * Check whether the given modifier is native. * @param mod the modifier. * @return <code>true</code> if native, <code>false</code> otherwise. */ - public static boolean isNative (int mod) + public static boolean isNative(int mod) { return (mod & NATIVE) != 0; } - /** Check whether the given modifier is private. + /** + * Check whether the given modifier is private. * @param mod the modifier. * @return <code>true</code> if private, <code>false</code> otherwise. */ - public static boolean isPrivate (int mod) + public static boolean isPrivate(int mod) { return (mod & PRIVATE) != 0; } - /** Check whether the given modifier is protected. + /** + * Check whether the given modifier is protected. * @param mod the modifier. * @return <code>true</code> if protected, <code>false</code> otherwise. */ - public static boolean isProtected (int mod) + public static boolean isProtected(int mod) { return (mod & PROTECTED) != 0; } - /** Check whether the given modifier is public. + /** + * Check whether the given modifier is public. * @param mod the modifier. * @return <code>true</code> if public, <code>false</code> otherwise. */ - public static boolean isPublic (int mod) + public static boolean isPublic(int mod) { return (mod & PUBLIC) != 0; } - /** Check whether the given modifier is static. + /** + * Check whether the given modifier is static. * @param mod the modifier. * @return <code>true</code> if static, <code>false</code> otherwise. */ - public static boolean isStatic (int mod) + public static boolean isStatic(int mod) { return (mod & STATIC) != 0; } - /** Check whether the given modifier is strictfp. + /** + * Check whether the given modifier is strictfp. * @param mod the modifier. * @return <code>true</code> if strictfp, <code>false</code> otherwise. */ - public static boolean isStrict (int mod) + public static boolean isStrict(int mod) { return (mod & STRICT) != 0; } - /** Check whether the given modifier is synchronized. + /** + * Check whether the given modifier is synchronized. * @param mod the modifier. * @return <code>true</code> if synchronized, <code>false</code> otherwise. */ - public static boolean isSynchronized (int mod) + public static boolean isSynchronized(int mod) { return (mod & SYNCHRONIZED) != 0; } - /** Check whether the given modifier is transient. + /** + * Check whether the given modifier is transient. * @param mod the modifier. * @return <code>true</code> if transient, <code>false</code> otherwise. */ - public static boolean isTransient (int mod) + public static boolean isTransient(int mod) { return (mod & TRANSIENT) != 0; } - /** Check whether the given modifier is volatile. + /** + * Check whether the given modifier is volatile. * @param mod the modifier. * @return <code>true</code> if volatile, <code>false</code> otherwise. */ - public static boolean isVolatile (int mod) + public static boolean isVolatile(int mod) { return (mod & VOLATILE) != 0; } - /** Get a string representation of all the modifiers represented by the - * given int. - * The keywords are printed in this order: + /** + * Get a string representation of all the modifiers represented by the + * given int. The keywords are printed in this order: * <code><public|private|protected> abstract static final transient - * volatile native synchronized interface strictfp</code><P> - * - * <STRONG>This is, near as I can tell, the "canonical order" of modifiers - * mentioned by Sun in the reference implementation. I have inferred this - * from the order of printing in the Field, Method and Constructor - * classes.</STRONG> + * volatile native synchronized interface strictfp</code>. * * @param mod the modifier. * @return the String representing the modifiers. */ - public static String toString (int mod) + public static String toString(int mod) { - StringBuffer r = new StringBuffer (); - toString(mod, r); - return r.toString(); + return toString(mod, new StringBuffer()).toString(); } /** - * Package private helper toString() method that can take a StringBuffer. + * Package helper method that can take a StringBuffer. * @param mod the modifier * @param r the StringBuffer to which the String representation is appended + * @return r, with information appended */ - static void toString (int mod, StringBuffer r) + static StringBuffer toString(int mod, StringBuffer r) { - if (isPublic (mod)) + if (isPublic(mod)) r.append("public "); - if (isProtected (mod)) - r.append("protected "); - if (isPrivate (mod)) + if (isPrivate(mod)) r.append("private "); - if (isAbstract (mod)) + if (isProtected(mod)) + r.append("protected "); + if (isAbstract(mod)) r.append("abstract "); - if (isStatic (mod)) + if (isStatic(mod)) r.append("static "); - if (isFinal (mod)) + if (isFinal(mod)) r.append("final "); - if (isTransient (mod)) + if (isTransient(mod)) r.append("transient "); - if (isVolatile (mod)) + if (isVolatile(mod)) r.append("volatile "); - if (isNative (mod)) + if (isNative(mod)) r.append("native "); - if (isSynchronized (mod)) + if (isSynchronized(mod)) r.append("synchronized "); - if (isInterface (mod)) + if (isInterface(mod)) r.append("interface "); - if (isStrict (mod)) + if (isStrict(mod)) r.append("strictfp "); // Trim trailing space. - int l = r.length(); - if (l > 0) - r.setLength(l - 1); + if ((mod & ALL_FLAGS) != 0) + r.setLength(r.length() - 1); + return r; } } |
