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Class.java (getClasses): New method.

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* java/lang/Class.java (getClasses): New method.
	(internalGetClasses): Likewise.
	(getClassLoader): Updated documentation.
	(getDeclaredClasses): New overload; old overload no longer
	native.
	(_getConstructors): Removed.
	(resourcePath): Updated.
	* java/lang/natClass.cc (getClasses): Removed.
	* java/lang/Class.h (getDeclaredClasses, getDeclaredConstructors):
	Updated.
	(_getConstructors): Removed.

From-SVN: r100948
This commit is contained in:
Tom Tromey 2005-06-14 18:51:54 +00:00 committed by Tom Tromey
parent c9a3d12830
commit 7666af8941
4 changed files with 97 additions and 90 deletions
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14
libjava/ChangeLog
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@ -1,3 +1,17 @@
2005-06-14 Tom Tromey <tromey@redhat.com>
* java/lang/Class.java (getClasses): New method.
(internalGetClasses): Likewise.
(getClassLoader): Updated documentation.
(getDeclaredClasses): New overload; old overload no longer
native.
(_getConstructors): Removed.
(resourcePath): Updated.
* java/lang/natClass.cc (getClasses): Removed.
* java/lang/Class.h (getDeclaredClasses, getDeclaredConstructors):
Updated.
(_getConstructors): Removed.
2005-06-13 Jim Huang <jserv@kaffe.org>
PR libgcj/22036:

4
libjava/java/lang/Class.h
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@ -273,7 +273,7 @@ public:
java::lang::reflect::Constructor *getConstructor (JArray<jclass> *);
JArray<java::lang::reflect::Constructor *> *getConstructors (void);
java::lang::reflect::Constructor *getDeclaredConstructor (JArray<jclass> *);
JArray<java::lang::reflect::Constructor *> *getDeclaredConstructors (void);
JArray<java::lang::reflect::Constructor *> *getDeclaredConstructors (jboolean);
java::lang::reflect::Field *getDeclaredField (jstring);
JArray<java::lang::reflect::Field *> *getDeclaredFields ();
JArray<java::lang::reflect::Field *> *getDeclaredFields (jboolean);
@ -281,12 +281,12 @@ public:
JArray<java::lang::reflect::Method *> *getDeclaredMethods (void);
JArray<jclass> *getDeclaredClasses (void);
JArray<jclass> *getDeclaredClasses (jboolean);
jclass getDeclaringClass (void);
java::lang::reflect::Field *getField (jstring);
private:
JArray<java::lang::reflect::Field *> internalGetFields ();
JArray<java::lang::reflect::Constructor *> *_getConstructors (jboolean);
java::lang::reflect::Field *getField (jstring, jint);
jint _getMethods (JArray<java::lang::reflect::Method *> *result,
jint offset);

136
libjava/java/lang/Class.java
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@ -1,5 +1,5 @@
/* Class.java -- Representation of a Java class.
Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004
Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2005
Free Software Foundation
This file is part of GNU Classpath.
@ -46,6 +46,7 @@ import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.net.URL;
import java.security.ProtectionDomain;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
@ -54,9 +55,11 @@ import java.util.HashSet;
* objects with identical names and ClassLoaders. Primitive types, array
* types, and void also have a Class object.
*
* <p>Arrays with identical type and number of dimensions share the same
* class (and null "system" ClassLoader, incidentally). The name of an
* array class is <code>[&lt;signature format&gt;;</code> ... for example,
* <p>Arrays with identical type and number of dimensions share the same class.
* The array class ClassLoader is the same as the ClassLoader of the element
* type of the array (which can be null to indicate the bootstrap classloader).
* The name of an array class is <code>[&lt;signature format&gt;;</code>.
* <p> For example,
* String[]'s class is <code>[Ljava.lang.String;</code>. boolean, byte,
* short, char, int, long, float and double have the "type name" of
* Z,B,S,C,I,J,F,D for the purposes of array classes. If it's a
@ -148,13 +151,31 @@ public final class Class implements Serializable
* @throws SecurityException if the security check fails
* @since 1.1
*/
public native Class[] getClasses ();
public Class[] getClasses()
{
memberAccessCheck(Member.PUBLIC);
return internalGetClasses();
}
/**
* Like <code>getClasses()</code> but without the security checks.
*/
private Class[] internalGetClasses()
{
ArrayList list = new ArrayList();
list.addAll(Arrays.asList(getDeclaredClasses(true)));
Class superClass = getSuperclass();
if (superClass != null)
list.addAll(Arrays.asList(superClass.internalGetClasses()));
return (Class[])list.toArray(new Class[list.size()]);
}
/**
* Get the ClassLoader that loaded this class. If it was loaded by the
* system classloader, this method will return null. If there is a security
* manager, and the caller's class loader does not match the requested
* one, a security check of <code>RuntimePermission("getClassLoader")</code>
* Get the ClassLoader that loaded this class. If the class was loaded
* by the bootstrap classloader, this method will return null.
* If there is a security manager, and the caller's class loader is not
* an ancestor of the requested one, a security check of
* <code>RuntimePermission("getClassLoader")</code>
* must first succeed. Primitive types and void return null.
*
* @return the ClassLoader that loaded this class
@ -193,10 +214,6 @@ public final class Class implements Serializable
public native Constructor getConstructor(Class[] args)
throws NoSuchMethodException;
// This is used to implement getConstructors and
// getDeclaredConstructors.
private native Constructor[] _getConstructors (boolean declared);
/**
* Get all the public constructors of this class. This returns an array of
* length 0 if there are no constructors, including for primitive types,
@ -211,7 +228,8 @@ public final class Class implements Serializable
*/
public Constructor[] getConstructors()
{
return _getConstructors(false);
memberAccessCheck(Member.PUBLIC);
return getDeclaredConstructors(true);
}
/**
@ -243,7 +261,13 @@ public final class Class implements Serializable
* @throws SecurityException if the security check fails
* @since 1.1
*/
public native Class[] getDeclaredClasses();
public Class[] getDeclaredClasses()
{
memberAccessCheck(Member.DECLARED);
return getDeclaredClasses(false);
}
native Class[] getDeclaredClasses (boolean publicOnly);
/**
* Get all the declared constructors of this class. This returns an array of
@ -259,9 +283,12 @@ public final class Class implements Serializable
*/
public Constructor[] getDeclaredConstructors()
{
return _getConstructors(true);
memberAccessCheck(Member.DECLARED);
return getDeclaredConstructors(false);
}
native Constructor[] getDeclaredConstructors (boolean publicOnly);
/**
* Get a field declared in this class, where name is its simple name. The
* implicit length field of arrays is not available. A security check may
@ -303,8 +330,8 @@ public final class Class implements Serializable
/**
* Get a method declared in this class, where name is its simple name. The
* implicit methods of Object are not available from arrays or interfaces.
* Constructors (named "<init>" in the class file) and class initializers
* (name "<clinit>") are not available. The Virtual Machine allows
* Constructors (named "&lt;init&gt;" in the class file) and class initializers
* (name "&lt;clinit&gt;") are not available. The Virtual Machine allows
* multiple methods with the same signature but differing return types; in
* such a case the most specific return types are favored, then the final
* choice is arbitrary. If the method takes no argument, an array of zero
@ -438,14 +465,7 @@ public final class Class implements Serializable
{
ClassLoader cl = getClassLoader();
if (cl != null)
{
String name = getName();
String pkg = "";
int idx = name.lastIndexOf('.');
if (idx >= 0)
pkg = name.substring(0, idx);
return cl.getPackage(pkg);
}
return cl.getPackage(getPackagePortion(getName()));
return null;
}
@ -468,8 +488,8 @@ public final class Class implements Serializable
/**
* Get a public method declared or inherited in this class, where name is
* its simple name. The implicit methods of Object are not available from
* interfaces. Constructors (named "<init>" in the class file) and class
* initializers (name "<clinit>") are not available. The Virtual
* interfaces. Constructors (named "&lt;init&gt;" in the class file) and class
* initializers (name "&lt;clinit&gt;") are not available. The Virtual
* Machine allows multiple methods with the same signature but differing
* return types, and the class can inherit multiple methods of the same
* return type; in such a case the most specific return types are favored,
@ -537,8 +557,16 @@ public final class Class implements Serializable
/**
* Get the name of this class, separated by dots for package separators.
* Primitive types and arrays are encoded as:
* If the class represents a primitive type, or void, then the
* name of the type as it appears in the Java programming language
* is returned. For instance, <code>Byte.TYPE.getName()</code>
* returns "byte".
*
* Arrays are specially encoded as shown on this table.
* <pre>
* array type [<em>element type</em>
* (note that the element type is encoded per
* this table)
* boolean Z
* byte B
* char C
@ -548,9 +576,9 @@ public final class Class implements Serializable
* float F
* double D
* void V
* array type [<em>element type</em>
* class or interface, alone: &lt;dotted name&gt;
* class or interface, as element type: L&lt;dotted name&gt;;
* </pre>
*
* @return the name of this class
*/
@ -562,9 +590,9 @@ public final class Class implements Serializable
* the system classloader, ClassLoader.getSystemResource() is used instead.
*
* <p>If the name you supply is absolute (it starts with a <code>/</code>),
* then it is passed on to getResource() as is. If it is relative, the
* package name is prepended, and <code>.</code>'s are replaced with
* <code>/</code>.
* then the leading <code>/</code> is removed and it is passed on to
* getResource(). If it is relative, the package name is prepended, and
* <code>.</code>'s are replaced with <code>/</code>.
*
* <p>The URL returned is system- and classloader-dependent, and could
* change across implementations.
@ -590,9 +618,9 @@ public final class Class implements Serializable
* instead.
*
* <p>If the name you supply is absolute (it starts with a <code>/</code>),
* then it is passed on to getResource() as is. If it is relative, the
* package name is prepended, and <code>.</code>'s are replaced with
* <code>/</code>.
* then the leading <code>/</code> is removed and it is passed on to
* getResource(). If it is relative, the package name is prepended, and
* <code>.</code>'s are replaced with <code>/</code>.
*
* <p>The URL returned is system- and classloader-dependent, and could
* change across implementations.
@ -613,17 +641,19 @@ public final class Class implements Serializable
private String resourcePath(String resourceName)
{
if (resourceName.startsWith("/"))
return resourceName.substring(1);
Class c = this;
while (c.isArray())
c = c.getComponentType();
String packageName = c.getName().replace('.', '/');
int end = packageName.lastIndexOf('/');
if (end != -1)
return packageName.substring(0, end + 1) + resourceName;
if (resourceName.length() > 0)
{
if (resourceName.charAt(0) != '/')
{
String pkg = getPackagePortion(getName());
if (pkg.length() > 0)
resourceName = pkg.replace('.','/') + '/' + resourceName;
}
else
{
resourceName = resourceName.substring(1);
}
}
return resourceName;
}
@ -739,18 +769,6 @@ public final class Class implements Serializable
// can't add fields to java.lang.Class that are accessible from Java.
private native ProtectionDomain getProtectionDomain0();
/**
* Returns the protection domain of this class. If the classloader did not
* record the protection domain when creating this class the unknown
* protection domain is returned which has a <code>null</code> code source
* and all permissions.
*
* @return the protection domain
* @throws SecurityException if the security manager exists and the caller
* does not have <code>RuntimePermission("getProtectionDomain")</code>.
* @see RuntimePermission
* @since 1.2
*/
public ProtectionDomain getProtectionDomain()
{
SecurityManager sm = System.getSecurityManager();

33
libjava/java/lang/natClass.cc
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@ -126,15 +126,6 @@ java::lang::Class::getClassLoader (void)
s->checkPermission (new RuntimePermission (JvNewStringLatin1 ("getClassLoader")));
}
// This particular 'return' has been changed a couple of times over
// libgcj's history. This particular approach is a little weird,
// because it means that all classes linked into the application
// will see NULL for their class loader. This may confuse some
// applications that aren't expecting this; the solution is to use a
// different linking model for these applications. In the past we
// returned the system class loader in this case, but that is
// incorrect. Also, back then we didn't have other linkage models
// to fall back on.
return loader;
}
@ -167,10 +158,8 @@ java::lang::Class::getConstructor (JArray<jclass> *param_types)
}
JArray<java::lang::reflect::Constructor *> *
java::lang::Class::_getConstructors (jboolean declared)
java::lang::Class::getDeclaredConstructors (jboolean publicOnly)
{
memberAccessCheck(java::lang::reflect::Member::PUBLIC);
int numConstructors = 0;
int max = isPrimitive () ? 0 : method_count;
int i;
@ -180,7 +169,7 @@ java::lang::Class::_getConstructors (jboolean declared)
if (method->name == NULL
|| ! _Jv_equalUtf8Consts (method->name, init_name))
continue;
if (! declared
if (publicOnly
&& ! java::lang::reflect::Modifier::isPublic(method->accflags))
continue;
numConstructors++;
@ -197,7 +186,7 @@ java::lang::Class::_getConstructors (jboolean declared)
if (method->name == NULL
|| ! _Jv_equalUtf8Consts (method->name, init_name))
continue;
if (! declared
if (publicOnly
&& ! java::lang::reflect::Modifier::isPublic(method->accflags))
continue;
java::lang::reflect::Constructor *cons
@ -427,22 +416,8 @@ java::lang::Class::getName (void)
}
JArray<jclass> *
java::lang::Class::getClasses (void)
java::lang::Class::getDeclaredClasses (jboolean /*publicOnly*/)
{
// FIXME: security checking.
// Until we have inner classes, it always makes sense to return an
// empty array.
JArray<jclass> *result
= (JArray<jclass> *) JvNewObjectArray (0, &java::lang::Class::class$,
NULL);
return result;
}
JArray<jclass> *
java::lang::Class::getDeclaredClasses (void)
{
memberAccessCheck (java::lang::reflect::Member::DECLARED);
// Until we have inner classes, it always makes sense to return an
// empty array.
JArray<jclass> *result