d5b7beb930
2008-01-04 Andrew Haley <aph@redhat.com> PR libgcj/34444 * java/lang/natClass.cc (Class::getEnclosingClass): Call getDeclaringClass(). From-SVN: r131326
2085 lines
55 KiB
C++
2085 lines
55 KiB
C++
// natClass.cc - Implementation of java.lang.Class native methods.
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/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#include <config.h>
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#include <limits.h>
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#include <string.h>
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#include <stddef.h>
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#include <stdio.h>
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#pragma implementation "Class.h"
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#include <gcj/cni.h>
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#include <jvm.h>
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#include <java-threads.h>
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#include <java/lang/Class.h>
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#include <java/lang/ClassLoader.h>
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#include <java/lang/String.h>
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#include <java/lang/reflect/Modifier.h>
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#include <java/lang/reflect/Member.h>
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#include <java/lang/reflect/Method.h>
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#include <java/lang/reflect/Field.h>
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#include <java/lang/reflect/Proxy.h>
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#include <java/lang/reflect/Constructor.h>
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#include <java/lang/AbstractMethodError.h>
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#include <java/lang/ArrayStoreException.h>
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#include <java/lang/ClassCastException.h>
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#include <java/lang/ClassNotFoundException.h>
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#include <java/lang/ExceptionInInitializerError.h>
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#include <java/lang/IllegalAccessException.h>
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#include <java/lang/IllegalAccessError.h>
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#include <java/lang/IllegalArgumentException.h>
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#include <java/lang/IncompatibleClassChangeError.h>
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#include <java/lang/NoSuchFieldError.h>
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#include <java/lang/ArrayIndexOutOfBoundsException.h>
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#include <java/lang/InstantiationException.h>
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#include <java/lang/NoClassDefFoundError.h>
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#include <java/lang/NoSuchFieldException.h>
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#include <java/lang/NoSuchMethodError.h>
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#include <java/lang/NoSuchMethodException.h>
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#include <java/lang/Thread.h>
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#include <java/lang/NullPointerException.h>
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#include <java/lang/RuntimePermission.h>
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#include <java/lang/System.h>
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#include <java/lang/SecurityException.h>
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#include <java/lang/SecurityManager.h>
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#include <java/lang/StringBuffer.h>
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#include <java/lang/VMClassLoader.h>
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#include <gcj/method.h>
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#include <gnu/gcj/RawData.h>
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#include <java/lang/VerifyError.h>
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#include <java/lang/InternalError.h>
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#include <java/lang/TypeNotPresentException.h>
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#include <java/lang/Byte.h>
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#include <java/lang/Short.h>
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#include <java/lang/Integer.h>
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#include <java/lang/Float.h>
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#include <java/lang/Double.h>
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#include <java/lang/Long.h>
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#include <java/lang/Character.h>
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#include <java/lang/Boolean.h>
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#include <java/lang/annotation/Annotation.h>
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#include <java/util/HashMap.h>
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#include <java/util/Map.h>
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#include <sun/reflect/annotation/AnnotationInvocationHandler.h>
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#include <java/lang/Enum.h>
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#include <java-cpool.h>
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#include <java-interp.h>
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#include <java-assert.h>
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#include <java-stack.h>
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#include <execution.h>
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using namespace gcj;
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jclass
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java::lang::Class::forName (jstring className, jboolean initialize,
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java::lang::ClassLoader *loader)
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{
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if (! className)
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throw new java::lang::NullPointerException;
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jsize length = _Jv_GetStringUTFLength (className);
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char buffer[length];
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_Jv_GetStringUTFRegion (className, 0, className->length(), buffer);
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_Jv_Utf8Const *name = _Jv_makeUtf8Const (buffer, length);
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if (! _Jv_VerifyClassName (name))
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throw new java::lang::ClassNotFoundException (className);
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jclass klass = (buffer[0] == '['
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? _Jv_FindClassFromSignature (name->chars(), loader)
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: _Jv_FindClass (name, loader));
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if (klass == NULL)
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throw new java::lang::ClassNotFoundException (className);
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if (initialize)
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_Jv_InitClass (klass);
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return klass;
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}
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jclass
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java::lang::Class::forName (jstring className)
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{
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java::lang::ClassLoader *loader = NULL;
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jclass caller = _Jv_StackTrace::GetCallingClass (&Class::class$);
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if (caller)
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loader = caller->getClassLoaderInternal();
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return forName (className, true, loader);
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}
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java::lang::ClassLoader *
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java::lang::Class::getClassLoader (void)
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{
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java::lang::SecurityManager *s = java::lang::System::getSecurityManager();
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if (s != NULL)
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{
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jclass caller = _Jv_StackTrace::GetCallingClass (&Class::class$);
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return getClassLoader (caller);
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}
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return loader;
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}
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java::lang::ClassLoader *
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java::lang::Class::getClassLoader (jclass caller)
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{
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java::lang::SecurityManager *s = java::lang::System::getSecurityManager();
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if (s != NULL)
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{
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ClassLoader *caller_loader = caller->getClassLoaderInternal();
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// If the caller has a non-null class loader, and that loader
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// is not this class' loader or an ancestor thereof, then do a
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// security check.
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if (caller_loader != NULL && ! caller_loader->isAncestorOf(loader))
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s->checkPermission (new RuntimePermission (JvNewStringLatin1 ("getClassLoader")));
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}
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return loader;
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}
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java::lang::reflect::Constructor *
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java::lang::Class::getConstructor (JArray<jclass> *param_types)
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{
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memberAccessCheck(java::lang::reflect::Member::PUBLIC);
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jstring partial_sig = getSignature (param_types, true);
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jint hash = partial_sig->hashCode ();
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int i = isPrimitive () ? 0 : method_count;
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while (--i >= 0)
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{
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if (_Jv_equalUtf8Consts (methods[i].name, init_name)
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&& _Jv_equal (methods[i].signature, partial_sig, hash))
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{
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// Found it. For getConstructor, the constructor must be
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// public.
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using namespace java::lang::reflect;
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if (! Modifier::isPublic(methods[i].accflags))
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break;
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Constructor *cons = new Constructor ();
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cons->offset = (char *) (&methods[i]) - (char *) methods;
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cons->declaringClass = this;
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return cons;
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}
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}
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throw new java::lang::NoSuchMethodException (_Jv_NewStringUtf8Const (init_name));
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}
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JArray<java::lang::reflect::Constructor *> *
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java::lang::Class::getDeclaredConstructors (jboolean publicOnly)
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{
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int numConstructors = 0;
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int max = isPrimitive () ? 0 : method_count;
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int i;
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for (i = max; --i >= 0; )
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{
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_Jv_Method *method = &methods[i];
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if (method->name == NULL
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|| ! _Jv_equalUtf8Consts (method->name, init_name))
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continue;
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if (publicOnly
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&& ! java::lang::reflect::Modifier::isPublic(method->accflags))
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continue;
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numConstructors++;
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}
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JArray<java::lang::reflect::Constructor *> *result
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= (JArray<java::lang::reflect::Constructor *> *)
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JvNewObjectArray (numConstructors,
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&java::lang::reflect::Constructor::class$,
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NULL);
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java::lang::reflect::Constructor** cptr = elements (result);
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for (i = 0; i < max; i++)
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{
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_Jv_Method *method = &methods[i];
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if (method->name == NULL
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|| ! _Jv_equalUtf8Consts (method->name, init_name))
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continue;
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if (publicOnly
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&& ! java::lang::reflect::Modifier::isPublic(method->accflags))
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continue;
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java::lang::reflect::Constructor *cons
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= new java::lang::reflect::Constructor ();
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cons->offset = (char *) method - (char *) methods;
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cons->declaringClass = this;
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*cptr++ = cons;
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}
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return result;
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}
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java::lang::reflect::Constructor *
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java::lang::Class::getDeclaredConstructor (JArray<jclass> *param_types)
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{
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memberAccessCheck(java::lang::reflect::Member::DECLARED);
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jstring partial_sig = getSignature (param_types, true);
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jint hash = partial_sig->hashCode ();
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int i = isPrimitive () ? 0 : method_count;
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while (--i >= 0)
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{
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if (_Jv_equalUtf8Consts (methods[i].name, init_name)
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&& _Jv_equal (methods[i].signature, partial_sig, hash))
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{
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// Found it.
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using namespace java::lang::reflect;
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Constructor *cons = new Constructor ();
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cons->offset = (char *) (&methods[i]) - (char *) methods;
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cons->declaringClass = this;
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return cons;
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}
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}
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throw new java::lang::NoSuchMethodException (_Jv_NewStringUtf8Const (init_name));
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}
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java::lang::reflect::Field *
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java::lang::Class::getField (jstring name, jint hash)
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{
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java::lang::reflect::Field* rfield;
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for (int i = 0; i < field_count; i++)
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{
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_Jv_Field *field = &fields[i];
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if (! _Jv_equal (field->name, name, hash))
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continue;
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if (! (field->getModifiers() & java::lang::reflect::Modifier::PUBLIC))
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continue;
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rfield = new java::lang::reflect::Field ();
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rfield->offset = (char*) field - (char*) fields;
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rfield->declaringClass = this;
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rfield->name = name;
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return rfield;
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}
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jclass superclass = getSuperclass();
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if (superclass == NULL)
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return NULL;
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rfield = superclass->getField(name, hash);
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for (int i = 0; i < interface_count && rfield == NULL; ++i)
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rfield = interfaces[i]->getField (name, hash);
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return rfield;
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}
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java::lang::reflect::Field *
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java::lang::Class::getDeclaredField (jstring name)
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{
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memberAccessCheck(java::lang::reflect::Member::DECLARED);
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int hash = name->hashCode();
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for (int i = 0; i < field_count; i++)
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{
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_Jv_Field *field = &fields[i];
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if (! _Jv_equal (field->name, name, hash))
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continue;
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java::lang::reflect::Field* rfield = new java::lang::reflect::Field ();
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rfield->offset = (char*) field - (char*) fields;
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rfield->declaringClass = this;
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rfield->name = name;
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return rfield;
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}
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throw new java::lang::NoSuchFieldException (name);
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}
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JArray<java::lang::reflect::Field *> *
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java::lang::Class::getDeclaredFields (jboolean public_only)
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{
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int size;
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if (public_only)
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{
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size = 0;
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for (int i = 0; i < field_count; ++i)
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{
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_Jv_Field *field = &fields[i];
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if ((field->flags & java::lang::reflect::Modifier::PUBLIC))
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++size;
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}
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}
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else
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size = field_count;
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JArray<java::lang::reflect::Field *> *result
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= (JArray<java::lang::reflect::Field *> *)
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JvNewObjectArray (size, &java::lang::reflect::Field::class$, NULL);
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java::lang::reflect::Field** fptr = elements (result);
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for (int i = 0; i < field_count; i++)
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{
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_Jv_Field *field = &fields[i];
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if (public_only
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&& ! (field->flags & java::lang::reflect::Modifier::PUBLIC))
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continue;
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java::lang::reflect::Field* rfield = new java::lang::reflect::Field ();
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rfield->offset = (char*) field - (char*) fields;
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rfield->declaringClass = this;
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*fptr++ = rfield;
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}
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return result;
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}
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void
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java::lang::Class::getSignature (java::lang::StringBuffer *buffer)
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{
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if (isPrimitive())
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buffer->append((jchar) method_count);
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else
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{
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jstring name = getName();
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if (name->charAt(0) != '[')
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buffer->append((jchar) 'L');
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buffer->append(name);
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if (name->charAt(0) != '[')
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buffer->append((jchar) ';');
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}
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}
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// This doesn't have to be native. It is an implementation detail
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// only called from the C++ code, though, so maybe this is clearer.
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jstring
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java::lang::Class::getSignature (JArray<jclass> *param_types,
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jboolean is_constructor)
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{
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java::lang::StringBuffer *buf = new java::lang::StringBuffer ();
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buf->append((jchar) '(');
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// A NULL param_types means "no parameters".
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if (param_types != NULL)
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{
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jclass *v = elements (param_types);
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for (int i = 0; i < param_types->length; ++i)
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v[i]->getSignature(buf);
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}
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buf->append((jchar) ')');
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if (is_constructor)
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buf->append((jchar) 'V');
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return buf->toString();
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}
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java::lang::reflect::Method *
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java::lang::Class::_getDeclaredMethod (jstring name,
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JArray<jclass> *param_types)
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{
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jstring partial_sig = getSignature (param_types, false);
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jint p_len = partial_sig->length();
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_Jv_Utf8Const *utf_name = _Jv_makeUtf8Const (name);
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int i = isPrimitive () ? 0 : method_count;
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while (--i >= 0)
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{
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if (_Jv_equalUtf8Consts (methods[i].name, utf_name)
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&& _Jv_equaln (methods[i].signature, partial_sig, p_len)
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&& (methods[i].accflags
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& java::lang::reflect::Modifier::INVISIBLE) == 0)
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{
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// Found it.
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using namespace java::lang::reflect;
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Method *rmethod = new Method ();
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rmethod->offset = (char*) (&methods[i]) - (char*) methods;
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rmethod->declaringClass = this;
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return rmethod;
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}
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}
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return NULL;
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}
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JArray<java::lang::reflect::Method *> *
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java::lang::Class::getDeclaredMethods (void)
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{
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memberAccessCheck(java::lang::reflect::Member::DECLARED);
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int numMethods = 0;
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int max = isPrimitive () ? 0 : method_count;
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int i;
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for (i = max; --i >= 0; )
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{
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_Jv_Method *method = &methods[i];
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if (method->name == NULL
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|| _Jv_equalUtf8Consts (method->name, clinit_name)
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|| _Jv_equalUtf8Consts (method->name, init_name)
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|| _Jv_equalUtf8Consts (method->name, finit_name)
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|| (methods[i].accflags
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& java::lang::reflect::Modifier::INVISIBLE) != 0)
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continue;
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numMethods++;
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}
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JArray<java::lang::reflect::Method *> *result
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= (JArray<java::lang::reflect::Method *> *)
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JvNewObjectArray (numMethods, &java::lang::reflect::Method::class$, NULL);
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java::lang::reflect::Method** mptr = elements (result);
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for (i = 0; i < max; i++)
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{
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_Jv_Method *method = &methods[i];
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if (method->name == NULL
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|| _Jv_equalUtf8Consts (method->name, clinit_name)
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|| _Jv_equalUtf8Consts (method->name, init_name)
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|| _Jv_equalUtf8Consts (method->name, finit_name)
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|| (methods[i].accflags
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& java::lang::reflect::Modifier::INVISIBLE) != 0)
|
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continue;
|
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java::lang::reflect::Method* rmethod
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= new java::lang::reflect::Method ();
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rmethod->offset = (char*) method - (char*) methods;
|
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rmethod->declaringClass = this;
|
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*mptr++ = rmethod;
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}
|
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return result;
|
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}
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jstring
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java::lang::Class::getName (void)
|
||
{
|
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return name->toString();
|
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}
|
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|
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JArray<jclass> *
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java::lang::Class::getInterfaces (void)
|
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{
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jobjectArray r = JvNewObjectArray (interface_count, getClass (), NULL);
|
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jobject *data = elements (r);
|
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for (int i = 0; i < interface_count; ++i)
|
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{
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typedef unsigned int uaddr __attribute__ ((mode (pointer)));
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data[i] = interfaces[i];
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if ((uaddr)data[i] < (uaddr)constants.size)
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fprintf (stderr, "ERROR !!!\n");
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}
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return reinterpret_cast<JArray<jclass> *> (r);
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}
|
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|
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java::lang::reflect::Method *
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java::lang::Class::_getMethod (jstring name, JArray<jclass> *param_types)
|
||
{
|
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jstring partial_sig = getSignature (param_types, false);
|
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jint p_len = partial_sig->length();
|
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_Jv_Utf8Const *utf_name = _Jv_makeUtf8Const (name);
|
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|
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for (Class *klass = this; klass; klass = klass->getSuperclass())
|
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{
|
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int i = klass->isPrimitive () ? 0 : klass->method_count;
|
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while (--i >= 0)
|
||
{
|
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if (_Jv_equalUtf8Consts (klass->methods[i].name, utf_name)
|
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&& _Jv_equaln (klass->methods[i].signature, partial_sig, p_len)
|
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&& (klass->methods[i].accflags
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& java::lang::reflect::Modifier::INVISIBLE) == 0)
|
||
{
|
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// Found it.
|
||
using namespace java::lang::reflect;
|
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|
||
// Method must be public.
|
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if (! Modifier::isPublic (klass->methods[i].accflags))
|
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break;
|
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|
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Method *rmethod = new Method ();
|
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rmethod->offset = ((char *) (&klass->methods[i])
|
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- (char *) klass->methods);
|
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rmethod->declaringClass = klass;
|
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return rmethod;
|
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}
|
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}
|
||
}
|
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|
||
// If we haven't found a match, and this class is an interface, then
|
||
// check all the superinterfaces.
|
||
if (isInterface())
|
||
{
|
||
for (int i = 0; i < interface_count; ++i)
|
||
{
|
||
using namespace java::lang::reflect;
|
||
Method *rmethod = interfaces[i]->_getMethod (name, param_types);
|
||
if (rmethod != NULL)
|
||
return rmethod;
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
// This is a very slow implementation, since it re-scans all the
|
||
// methods we've already listed to make sure we haven't duplicated a
|
||
// method. It also over-estimates the required size, so we have to
|
||
// shrink the result array later.
|
||
jint
|
||
java::lang::Class::_getMethods (JArray<java::lang::reflect::Method *> *result,
|
||
jint offset)
|
||
{
|
||
jint count = 0;
|
||
|
||
// First examine all local methods
|
||
for (int i = isPrimitive () ? 0 : method_count; --i >= 0; )
|
||
{
|
||
_Jv_Method *method = &methods[i];
|
||
if (method->name == NULL
|
||
|| _Jv_equalUtf8Consts (method->name, clinit_name)
|
||
|| _Jv_equalUtf8Consts (method->name, init_name)
|
||
|| _Jv_equalUtf8Consts (method->name, finit_name)
|
||
|| (method->accflags
|
||
& java::lang::reflect::Modifier::INVISIBLE) != 0)
|
||
continue;
|
||
// Only want public methods.
|
||
if (! java::lang::reflect::Modifier::isPublic (method->accflags))
|
||
continue;
|
||
|
||
// This is where we over-count the slots required if we aren't
|
||
// filling the result for real.
|
||
if (result != NULL)
|
||
{
|
||
jboolean add = true;
|
||
java::lang::reflect::Method **mp = elements (result);
|
||
// If we already have a method with this name and signature,
|
||
// then ignore this one. This can happen with virtual
|
||
// methods.
|
||
for (int j = 0; j < offset; ++j)
|
||
{
|
||
_Jv_Method *meth_2 = _Jv_FromReflectedMethod (mp[j]);
|
||
if (_Jv_equalUtf8Consts (method->name, meth_2->name)
|
||
&& _Jv_equalUtf8Consts (method->signature,
|
||
meth_2->signature))
|
||
{
|
||
add = false;
|
||
break;
|
||
}
|
||
}
|
||
if (! add)
|
||
continue;
|
||
}
|
||
|
||
if (result != NULL)
|
||
{
|
||
using namespace java::lang::reflect;
|
||
Method *rmethod = new Method ();
|
||
rmethod->offset = (char *) method - (char *) methods;
|
||
rmethod->declaringClass = this;
|
||
Method **mp = elements (result);
|
||
mp[offset + count] = rmethod;
|
||
}
|
||
++count;
|
||
}
|
||
offset += count;
|
||
|
||
// Now examine superclasses.
|
||
if (getSuperclass () != NULL)
|
||
{
|
||
jint s_count = getSuperclass()->_getMethods (result, offset);
|
||
offset += s_count;
|
||
count += s_count;
|
||
}
|
||
|
||
// Finally, examine interfaces.
|
||
for (int i = 0; i < interface_count; ++i)
|
||
{
|
||
int f_count = interfaces[i]->_getMethods (result, offset);
|
||
count += f_count;
|
||
offset += f_count;
|
||
}
|
||
|
||
return count;
|
||
}
|
||
|
||
JArray<java::lang::reflect::Method *> *
|
||
java::lang::Class::getMethods (void)
|
||
{
|
||
using namespace java::lang::reflect;
|
||
|
||
memberAccessCheck(Member::PUBLIC);
|
||
|
||
// This will overestimate the size we need.
|
||
jint count = _getMethods (NULL, 0);
|
||
|
||
JArray<Method *> *result
|
||
= ((JArray<Method *> *) JvNewObjectArray (count,
|
||
&Method::class$,
|
||
NULL));
|
||
|
||
// When filling the array for real, we get the actual count. Then
|
||
// we resize the array.
|
||
jint real_count = _getMethods (result, 0);
|
||
|
||
if (real_count != count)
|
||
{
|
||
JArray<Method *> *r2
|
||
= ((JArray<Method *> *) JvNewObjectArray (real_count,
|
||
&Method::class$,
|
||
NULL));
|
||
|
||
Method **destp = elements (r2);
|
||
Method **srcp = elements (result);
|
||
|
||
for (int i = 0; i < real_count; ++i)
|
||
*destp++ = *srcp++;
|
||
|
||
result = r2;
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
jboolean
|
||
java::lang::Class::isAssignableFrom (jclass klass)
|
||
{
|
||
// Arguments may not have been initialized, given ".class" syntax.
|
||
// This ensures we can at least look at their superclasses.
|
||
_Jv_Linker::wait_for_state (this, JV_STATE_LOADING);
|
||
_Jv_Linker::wait_for_state (klass, JV_STATE_LOADING);
|
||
return _Jv_IsAssignableFrom (klass, this);
|
||
}
|
||
|
||
jboolean
|
||
java::lang::Class::isInstance (jobject obj)
|
||
{
|
||
if (! obj)
|
||
return false;
|
||
return _Jv_IsAssignableFrom (JV_CLASS (obj), this);
|
||
}
|
||
|
||
jobject
|
||
java::lang::Class::newInstance (void)
|
||
{
|
||
memberAccessCheck(java::lang::reflect::Member::PUBLIC);
|
||
|
||
if (isPrimitive ()
|
||
|| isInterface ()
|
||
|| isArray ()
|
||
|| java::lang::reflect::Modifier::isAbstract(accflags))
|
||
throw new java::lang::InstantiationException (getName ());
|
||
|
||
_Jv_InitClass (this);
|
||
|
||
_Jv_Method *meth = _Jv_GetMethodLocal (this, init_name, void_signature);
|
||
if (! meth)
|
||
throw new java::lang::InstantiationException (getName());
|
||
|
||
jobject r = _Jv_AllocObject (this);
|
||
((void (*) (jobject)) meth->ncode) (r);
|
||
return r;
|
||
}
|
||
|
||
void
|
||
java::lang::Class::finalize (void)
|
||
{
|
||
engine->unregister(this);
|
||
}
|
||
|
||
#ifdef INTERPRETER
|
||
void
|
||
_Jv_ClosureList::releaseClosures (_Jv_ClosureList **closures)
|
||
{
|
||
if (!closures)
|
||
return;
|
||
|
||
while (_Jv_ClosureList *current = *closures)
|
||
{
|
||
*closures = current->next;
|
||
ffi_closure_free (current->ptr);
|
||
}
|
||
}
|
||
|
||
void
|
||
_Jv_ClosureList::registerClosure (jclass klass, void *ptr)
|
||
{
|
||
_Jv_ClosureList **closures = klass->engine->get_closure_list (klass);
|
||
this->ptr = ptr;
|
||
this->next = *closures;
|
||
*closures = this;
|
||
}
|
||
#endif
|
||
|
||
// This implements the initialization process for a class. From Spec
|
||
// section 12.4.2.
|
||
void
|
||
java::lang::Class::initializeClass (void)
|
||
{
|
||
// Short-circuit to avoid needless locking (expression includes
|
||
// JV_STATE_PHANTOM and JV_STATE_DONE).
|
||
if (state >= JV_STATE_PHANTOM)
|
||
return;
|
||
|
||
// Step 1. We introduce a new scope so we can synchronize more
|
||
// easily.
|
||
{
|
||
JvSynchronize sync (this);
|
||
|
||
if (state < JV_STATE_LINKED)
|
||
{
|
||
try
|
||
{
|
||
_Jv_Linker::wait_for_state(this, JV_STATE_LINKED);
|
||
}
|
||
catch (java::lang::SecurityException *x)
|
||
{
|
||
throw x;
|
||
}
|
||
catch (java::lang::Throwable *x)
|
||
{
|
||
// Turn into a NoClassDefFoundError.
|
||
java::lang::NoClassDefFoundError *result
|
||
= new java::lang::NoClassDefFoundError(getName());
|
||
result->initCause(x);
|
||
throw result;
|
||
}
|
||
}
|
||
|
||
// Step 2.
|
||
java::lang::Thread *self = java::lang::Thread::currentThread();
|
||
self = (java::lang::Thread *) ((long) self | 1);
|
||
while (state == JV_STATE_IN_PROGRESS && thread && thread != self)
|
||
wait ();
|
||
|
||
// Steps 3 & 4.
|
||
if (state == JV_STATE_DONE || state == JV_STATE_IN_PROGRESS)
|
||
return;
|
||
|
||
// Step 5.
|
||
if (state == JV_STATE_ERROR)
|
||
throw new java::lang::NoClassDefFoundError (getName());
|
||
|
||
// Step 6.
|
||
thread = self;
|
||
_Jv_Linker::wait_for_state (this, JV_STATE_LINKED);
|
||
state = JV_STATE_IN_PROGRESS;
|
||
}
|
||
|
||
// Step 7.
|
||
if (! isInterface () && superclass)
|
||
{
|
||
try
|
||
{
|
||
_Jv_InitClass (superclass);
|
||
}
|
||
catch (java::lang::SecurityException *x)
|
||
{
|
||
throw x;
|
||
}
|
||
catch (java::lang::Throwable *except)
|
||
{
|
||
// Caught an exception.
|
||
JvSynchronize sync (this);
|
||
state = JV_STATE_ERROR;
|
||
notifyAll ();
|
||
throw except;
|
||
}
|
||
}
|
||
|
||
// Steps 8, 9, 10, 11.
|
||
try
|
||
{
|
||
_Jv_Method *meth = _Jv_GetMethodLocal (this, clinit_name,
|
||
void_signature);
|
||
if (meth)
|
||
((void (*) (void)) meth->ncode) ();
|
||
}
|
||
catch (java::lang::SecurityException *x)
|
||
{
|
||
throw x;
|
||
}
|
||
catch (java::lang::Throwable *except)
|
||
{
|
||
if (! java::lang::Error::class$.isInstance(except))
|
||
{
|
||
try
|
||
{
|
||
except = new ExceptionInInitializerError (except);
|
||
}
|
||
catch (java::lang::Throwable *t)
|
||
{
|
||
except = t;
|
||
}
|
||
}
|
||
|
||
JvSynchronize sync (this);
|
||
state = JV_STATE_ERROR;
|
||
notifyAll ();
|
||
throw except;
|
||
}
|
||
|
||
JvSynchronize sync (this);
|
||
state = JV_STATE_DONE;
|
||
notifyAll ();
|
||
}
|
||
|
||
// Only used by serialization
|
||
java::lang::reflect::Field *
|
||
java::lang::Class::getPrivateField (jstring name)
|
||
{
|
||
int hash = name->hashCode ();
|
||
|
||
java::lang::reflect::Field* rfield;
|
||
for (int i = 0; i < field_count; i++)
|
||
{
|
||
_Jv_Field *field = &fields[i];
|
||
if (! _Jv_equal (field->name, name, hash))
|
||
continue;
|
||
rfield = new java::lang::reflect::Field ();
|
||
rfield->offset = (char*) field - (char*) fields;
|
||
rfield->declaringClass = this;
|
||
rfield->name = name;
|
||
return rfield;
|
||
}
|
||
jclass superclass = getSuperclass();
|
||
if (superclass == NULL)
|
||
return NULL;
|
||
rfield = superclass->getPrivateField(name);
|
||
for (int i = 0; i < interface_count && rfield == NULL; ++i)
|
||
rfield = interfaces[i]->getPrivateField (name);
|
||
return rfield;
|
||
}
|
||
|
||
// Only used by serialization
|
||
java::lang::reflect::Method *
|
||
java::lang::Class::getPrivateMethod (jstring name, JArray<jclass> *param_types)
|
||
{
|
||
jstring partial_sig = getSignature (param_types, false);
|
||
jint p_len = partial_sig->length();
|
||
_Jv_Utf8Const *utf_name = _Jv_makeUtf8Const (name);
|
||
for (Class *klass = this; klass; klass = klass->getSuperclass())
|
||
{
|
||
int i = klass->isPrimitive () ? 0 : klass->method_count;
|
||
while (--i >= 0)
|
||
{
|
||
if (_Jv_equalUtf8Consts (klass->methods[i].name, utf_name)
|
||
&& _Jv_equaln (klass->methods[i].signature, partial_sig, p_len))
|
||
{
|
||
// Found it.
|
||
using namespace java::lang::reflect;
|
||
|
||
Method *rmethod = new Method ();
|
||
rmethod->offset = ((char *) (&klass->methods[i])
|
||
- (char *) klass->methods);
|
||
rmethod->declaringClass = klass;
|
||
return rmethod;
|
||
}
|
||
}
|
||
}
|
||
throw new java::lang::NoSuchMethodException (name);
|
||
}
|
||
|
||
// Private accessor method for Java code to retrieve the protection domain.
|
||
java::security::ProtectionDomain *
|
||
java::lang::Class::getProtectionDomain0 ()
|
||
{
|
||
return protectionDomain;
|
||
}
|
||
|
||
JArray<jobject> *
|
||
java::lang::Class::getSigners()
|
||
{
|
||
return hack_signers;
|
||
}
|
||
|
||
void
|
||
java::lang::Class::setSigners(JArray<jobject> *s)
|
||
{
|
||
hack_signers = s;
|
||
}
|
||
|
||
|
||
|
||
static unsigned char
|
||
read_u1 (unsigned char *&p)
|
||
{
|
||
return *p++;
|
||
}
|
||
|
||
static unsigned char
|
||
read_u1 (unsigned char *&p, unsigned char *next)
|
||
{
|
||
if (next - p < 1)
|
||
throw new java::lang::InternalError();
|
||
return *p++;
|
||
}
|
||
|
||
static unsigned int
|
||
read_u2 (unsigned char *&p)
|
||
{
|
||
unsigned int b1 = *p++;
|
||
unsigned int b2 = *p++;
|
||
return (b1 << 8) | b2;
|
||
}
|
||
|
||
static unsigned int
|
||
read_u2 (unsigned char *&p, unsigned char *next)
|
||
{
|
||
if (next - p < 2)
|
||
throw new java::lang::InternalError();
|
||
return read_u2 (p);
|
||
}
|
||
|
||
static int
|
||
read_4 (unsigned char *&p)
|
||
{
|
||
int b1 = *p++;
|
||
int b2 = *p++;
|
||
int b3 = *p++;
|
||
int b4 = *p++;
|
||
return (b1 << 24) | (b2 << 16) | (b3 << 8) | b4;
|
||
}
|
||
|
||
jstring
|
||
java::lang::Class::getReflectionSignature (jint /*jv_attr_type*/ type,
|
||
jint obj_index)
|
||
{
|
||
// We just re-parse the bytecode for this data each time. If
|
||
// necessary we can cache results, but I suspect this is not
|
||
// performance sensitive.
|
||
unsigned char *bytes = reflection_data;
|
||
if (bytes == NULL)
|
||
return NULL;
|
||
while (true)
|
||
{
|
||
int kind = read_u1 (bytes);
|
||
if (kind == JV_DONE_ATTR)
|
||
return NULL;
|
||
int len = read_4 (bytes);
|
||
unsigned char *next = bytes + len;
|
||
if (kind != type)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
if (type != JV_CLASS_ATTR)
|
||
{
|
||
unsigned short index = read_u2 (bytes, next);
|
||
if (index != obj_index)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
}
|
||
int nt = read_u1 (bytes, next);
|
||
if (nt != JV_SIGNATURE_KIND)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
unsigned int cpool_idx = read_u2 (bytes, next);
|
||
if (cpool_idx >= (unsigned int) constants.size
|
||
|| constants.tags[cpool_idx] != JV_CONSTANT_Utf8)
|
||
{
|
||
// We just ignore errors for now. It isn't clear what is
|
||
// best to do here, as an encoding error here means a bug
|
||
// either in the compiler or in defineclass.cc.
|
||
return NULL;
|
||
}
|
||
return _Jv_NewStringUtf8Const (constants.data[cpool_idx].utf8);
|
||
}
|
||
}
|
||
|
||
jstring
|
||
java::lang::Class::getReflectionSignature (::java::lang::reflect::Constructor *c)
|
||
{
|
||
_Jv_Method *meth = _Jv_FromReflectedConstructor (c);
|
||
unsigned short meth_index = meth - methods;
|
||
return getReflectionSignature (JV_METHOD_ATTR, meth_index);
|
||
}
|
||
|
||
jstring
|
||
java::lang::Class::getReflectionSignature (::java::lang::reflect::Method *m)
|
||
{
|
||
_Jv_Method *meth = _Jv_FromReflectedMethod (m);
|
||
unsigned short meth_index = meth - methods;
|
||
return getReflectionSignature (JV_METHOD_ATTR, meth_index);
|
||
}
|
||
|
||
jstring
|
||
java::lang::Class::getReflectionSignature (::java::lang::reflect::Field *f)
|
||
{
|
||
_Jv_Field *fld = _Jv_FromReflectedField (f);
|
||
unsigned short fld_index = fld - fields;
|
||
return getReflectionSignature (JV_FIELD_ATTR, fld_index);
|
||
}
|
||
|
||
jstring
|
||
java::lang::Class::getClassSignature()
|
||
{
|
||
return getReflectionSignature (JV_CLASS_ATTR, 0);
|
||
}
|
||
|
||
jint
|
||
java::lang::Class::getEnclosingMethodData()
|
||
{
|
||
unsigned char *bytes = reflection_data;
|
||
if (bytes == NULL)
|
||
return 0;
|
||
while (true)
|
||
{
|
||
int kind = read_u1 (bytes);
|
||
if (kind == JV_DONE_ATTR)
|
||
return 0;
|
||
int len = read_4 (bytes);
|
||
unsigned char *next = bytes + len;
|
||
if (kind != JV_CLASS_ATTR)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
int type = read_u1 (bytes, next);
|
||
if (type != JV_ENCLOSING_METHOD_KIND)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
int class_index = read_u2 (bytes, next);
|
||
int method_index = read_u2 (bytes, next);
|
||
_Jv_word result;
|
||
_Jv_storeIndexes (&result, class_index, method_index);
|
||
return result.i;
|
||
}
|
||
}
|
||
|
||
jclass
|
||
java::lang::Class::getEnclosingClass()
|
||
{
|
||
_Jv_word indexes;
|
||
indexes.i = getEnclosingMethodData();
|
||
if (indexes.i == 0)
|
||
// No enclosing method, but perhaps a member or anonymous class
|
||
return getDeclaringClass();
|
||
_Jv_ushort class_index, method_index;
|
||
_Jv_loadIndexes (&indexes, class_index, method_index);
|
||
return _Jv_Linker::resolve_pool_entry (this, class_index).clazz;
|
||
}
|
||
|
||
::java::lang::reflect::Method *
|
||
java::lang::Class::getEnclosingMethod()
|
||
{
|
||
_Jv_word indexes;
|
||
indexes.i = getEnclosingMethodData();
|
||
if (indexes.i == 0)
|
||
return NULL;
|
||
_Jv_ushort class_index, method_index;
|
||
_Jv_loadIndexes (&indexes, class_index, method_index);
|
||
jclass found_class;
|
||
_Jv_Method *method = _Jv_Linker::resolve_method_entry (this, found_class,
|
||
class_index,
|
||
method_index,
|
||
false, false);
|
||
using namespace java::lang::reflect;
|
||
Method *rmethod = new Method ();
|
||
rmethod->offset = (char *) method - (char *) found_class->methods;
|
||
rmethod->declaringClass = found_class;
|
||
return rmethod;
|
||
}
|
||
|
||
::java::lang::reflect::Constructor *
|
||
java::lang::Class::getEnclosingConstructor()
|
||
{
|
||
_Jv_word indexes;
|
||
indexes.i = getEnclosingMethodData();
|
||
if (indexes.i == 0)
|
||
return NULL;
|
||
_Jv_ushort class_index, method_index;
|
||
_Jv_loadIndexes (&indexes, class_index, method_index);
|
||
jclass found_class;
|
||
_Jv_Method *method = _Jv_Linker::resolve_method_entry (this, found_class,
|
||
class_index,
|
||
method_index,
|
||
false, false);
|
||
using namespace java::lang::reflect;
|
||
Constructor *cons = new Constructor ();
|
||
cons->offset = (char *) method - (char *) found_class->methods;
|
||
cons->declaringClass = this;
|
||
return cons;
|
||
}
|
||
|
||
static void
|
||
check_constant (_Jv_Constants *pool, jint cpool_index, jint type)
|
||
{
|
||
if (cpool_index <= 0 || cpool_index >= pool->size)
|
||
throw new InternalError(JvNewStringLatin1("invalid constant pool index"));
|
||
if ((pool->tags[cpool_index] &
|
||
~(JV_CONSTANT_ResolvedFlag|JV_CONSTANT_LazyFlag)) != type)
|
||
{
|
||
::java::lang::StringBuffer *sb = new ::java::lang::StringBuffer();
|
||
sb->append(JvNewStringLatin1("expected pool constant "));
|
||
sb->append(type);
|
||
sb->append(JvNewStringLatin1(" but got "));
|
||
sb->append(jint (pool->tags[cpool_index]));
|
||
throw new InternalError(sb->toString());
|
||
}
|
||
}
|
||
|
||
// Forward declaration
|
||
static ::java::lang::annotation::Annotation *
|
||
parseAnnotation(jclass klass, _Jv_Constants *pool,
|
||
unsigned char *&bytes, unsigned char *last);
|
||
|
||
static jobject
|
||
parseAnnotationElement(jclass klass, _Jv_Constants *pool,
|
||
unsigned char *&bytes, unsigned char *last)
|
||
{
|
||
int tag = read_u1 (bytes, last);
|
||
jobject result;
|
||
switch (tag)
|
||
{
|
||
case 'B':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
check_constant (pool, cindex, JV_CONSTANT_Integer);
|
||
result = Byte::valueOf (pool->data[cindex].i);
|
||
}
|
||
break;
|
||
case 'C':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
check_constant (pool, cindex, JV_CONSTANT_Integer);
|
||
result = Character::valueOf (pool->data[cindex].i);
|
||
}
|
||
break;
|
||
case 'S':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
check_constant (pool, cindex, JV_CONSTANT_Integer);
|
||
result = Short::valueOf (pool->data[cindex].i);
|
||
}
|
||
break;
|
||
case 'Z':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
check_constant (pool, cindex, JV_CONSTANT_Integer);
|
||
result = Boolean::valueOf (jboolean (pool->data[cindex].i));
|
||
}
|
||
break;
|
||
case 'I':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
check_constant (pool, cindex, JV_CONSTANT_Integer);
|
||
result = Integer::valueOf (pool->data[cindex].i);
|
||
}
|
||
break;
|
||
case 'D':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
check_constant (pool, cindex, JV_CONSTANT_Double);
|
||
_Jv_word2 word;
|
||
memcpy (&word, &pool->data[cindex], 2 * sizeof (_Jv_word));
|
||
result = Double::valueOf (word.d);
|
||
}
|
||
break;
|
||
case 'F':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
check_constant (pool, cindex, JV_CONSTANT_Float);
|
||
result = Float::valueOf (pool->data[cindex].f);
|
||
}
|
||
break;
|
||
case 'J':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
check_constant (pool, cindex, JV_CONSTANT_Long);
|
||
_Jv_word2 word;
|
||
memcpy (&word, &pool->data[cindex], 2 * sizeof (_Jv_word));
|
||
result = Long::valueOf (word.l);
|
||
}
|
||
break;
|
||
case 's':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
// Despite what the JVM spec says, compilers generate a Utf8
|
||
// constant here, not a String.
|
||
check_constant (pool, cindex, JV_CONSTANT_Utf8);
|
||
result = pool->data[cindex].utf8->toString();
|
||
}
|
||
break;
|
||
case 'e':
|
||
{
|
||
int type_name_index = read_u2 (bytes, last);
|
||
check_constant (pool, type_name_index, JV_CONSTANT_Utf8);
|
||
int const_name_index = read_u2 (bytes, last);
|
||
check_constant (pool, const_name_index, JV_CONSTANT_Utf8);
|
||
|
||
_Jv_Utf8Const *u_name = pool->data[type_name_index].utf8;
|
||
_Jv_Utf8Const *e_name = pool->data[const_name_index].utf8;
|
||
|
||
// FIXME: throw correct exceptions at the correct times.
|
||
jclass e_class = _Jv_FindClassFromSignature(u_name->chars(),
|
||
klass->getClassLoaderInternal());
|
||
result = ::java::lang::Enum::valueOf(e_class, e_name->toString());
|
||
}
|
||
break;
|
||
case 'c':
|
||
{
|
||
int cindex = read_u2 (bytes, last);
|
||
check_constant (pool, cindex, JV_CONSTANT_Utf8);
|
||
_Jv_Utf8Const *u_name = pool->data[cindex].utf8;
|
||
jclass anno_class
|
||
= _Jv_FindClassFromSignatureNoException(u_name->chars(),
|
||
klass->getClassLoaderInternal());
|
||
// FIXME: not correct: we should lazily do this when trying to
|
||
// read the element. This means that
|
||
// AnnotationInvocationHandler needs to have a special case.
|
||
if (! anno_class)
|
||
// FIXME: original exception...
|
||
throw new TypeNotPresentException(u_name->toString(), NULL);
|
||
result = anno_class;
|
||
}
|
||
break;
|
||
case '@':
|
||
result = parseAnnotation (klass, pool, bytes, last);
|
||
break;
|
||
case '[':
|
||
{
|
||
int n_array_elts = read_u2 (bytes, last);
|
||
jobjectArray aresult = _Jv_NewObjectArray (n_array_elts,
|
||
&Object::class$, NULL);
|
||
jobject *elts = elements (aresult);
|
||
for (int i = 0; i < n_array_elts; ++i)
|
||
elts[i] = parseAnnotationElement(klass, pool, bytes, last);
|
||
result = aresult;
|
||
}
|
||
break;
|
||
default:
|
||
throw new java::lang::InternalError();
|
||
}
|
||
return result;
|
||
}
|
||
|
||
static ::java::lang::annotation::Annotation *
|
||
parseAnnotation(jclass klass, _Jv_Constants *pool,
|
||
unsigned char *&bytes, unsigned char *last)
|
||
{
|
||
int type_index = read_u2 (bytes, last);
|
||
check_constant (pool, type_index, JV_CONSTANT_Utf8);
|
||
|
||
_Jv_Utf8Const *u_name = pool->data[type_index].utf8;
|
||
jclass anno_class = _Jv_FindClassFromSignatureNoException(u_name->chars(),
|
||
klass->getClassLoaderInternal());
|
||
// FIXME: what to do if anno_class==NULL?
|
||
|
||
::java::util::HashMap *hmap = new ::java::util::HashMap();
|
||
int npairs = read_u2 (bytes, last);
|
||
for (int i = 0; i < npairs; ++i)
|
||
{
|
||
int name_index = read_u2 (bytes, last);
|
||
check_constant (pool, name_index, JV_CONSTANT_Utf8);
|
||
jstring name = _Jv_NewStringUtf8Const (pool->data[name_index].utf8);
|
||
jobject value = parseAnnotationElement (klass, pool, bytes, last);
|
||
// FIXME: any checks needed for name?
|
||
hmap->put(name, value);
|
||
}
|
||
using namespace ::sun::reflect::annotation;
|
||
return AnnotationInvocationHandler::create (anno_class,
|
||
(::java::util::Map *) hmap);
|
||
}
|
||
|
||
static jobjectArray
|
||
parseAnnotations(jclass klass, _Jv_Constants *pool,
|
||
unsigned char *&bytes, unsigned char *last)
|
||
{
|
||
int num = read_u2 (bytes, last);
|
||
jobjectArray result = _Jv_NewObjectArray (num,
|
||
&::java::lang::annotation::Annotation::class$,
|
||
NULL);
|
||
jobject *elts = elements (result);
|
||
for (int i = 0; i < num; ++i)
|
||
elts[i] = parseAnnotation(klass, pool, bytes, last);
|
||
return result;
|
||
}
|
||
|
||
static jobjectArray
|
||
parseParameterAnnotations(jclass klass, _Jv_Constants *pool,
|
||
unsigned char *&bytes, unsigned char *last)
|
||
{
|
||
jclass anno = &::java::lang::annotation::Annotation::class$;
|
||
jclass annoary = _Jv_GetArrayClass (anno, anno->getClassLoaderInternal());
|
||
|
||
// FIXME: something should check the number of params versus the
|
||
// method
|
||
int n_params = read_u1 (bytes, last);
|
||
jobjectArray result = _Jv_NewObjectArray (n_params, annoary, NULL);
|
||
jobject *elts = elements (result);
|
||
for (int i = 0; i < n_params; ++i)
|
||
elts[i] = parseAnnotations(klass, pool, bytes, last);
|
||
return result;
|
||
}
|
||
|
||
jobject
|
||
java::lang::Class::getMethodDefaultValue(::java::lang::reflect::Method *meth)
|
||
{
|
||
// FIXME: could cache the value here...
|
||
|
||
unsigned char *bytes = reflection_data;
|
||
if (bytes == NULL)
|
||
return 0;
|
||
|
||
unsigned short meth_index = _Jv_FromReflectedMethod (meth) - methods;
|
||
|
||
while (true)
|
||
{
|
||
int type = read_u1 (bytes);
|
||
if (type == JV_DONE_ATTR)
|
||
return NULL;
|
||
int len = read_4 (bytes);
|
||
unsigned char *next = bytes + len;
|
||
if (type != JV_METHOD_ATTR)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
int kind = read_u1 (bytes, next);
|
||
if (kind != JV_ANNOTATION_DEFAULT_KIND)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
int index = read_u2 (bytes, next);
|
||
if (meth_index != index)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
|
||
// FIXME: could cache here. If we do then we have to clone any
|
||
// array result.
|
||
return parseAnnotationElement(this, &this->constants, bytes, next);
|
||
}
|
||
}
|
||
|
||
jobjectArray
|
||
java::lang::Class::getDeclaredAnnotations(jint /* jv_attr_type */ member_type,
|
||
jint member_index,
|
||
jint /* jv_attr_kind */ kind_req)
|
||
{
|
||
using namespace java::lang::annotation;
|
||
jobjectArray result;
|
||
|
||
unsigned char *bytes = reflection_data;
|
||
if (bytes == NULL)
|
||
return 0;
|
||
|
||
if (loader == NULL)
|
||
loader = (ClassLoader *)VMClassLoader::bootLoader;
|
||
|
||
result = (loader->getDeclaredAnnotations
|
||
(this, member_type, member_index, kind_req));
|
||
if (result)
|
||
return result;
|
||
|
||
for (;;)
|
||
{
|
||
int type = read_u1 (bytes);
|
||
if (type == JV_DONE_ATTR)
|
||
return NULL;
|
||
int len = read_4 (bytes);
|
||
unsigned char *next = bytes + len;
|
||
if (type != member_type)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
int kind = read_u1 (bytes, next);
|
||
if (kind != kind_req)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
if (member_type != JV_CLASS_ATTR)
|
||
{
|
||
int index = read_u2 (bytes, next);
|
||
if (member_index != index)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
}
|
||
|
||
if (kind_req == JV_PARAMETER_ANNOTATIONS_KIND)
|
||
result = ((parseParameterAnnotations
|
||
(this, &this->constants, bytes, next)));
|
||
else
|
||
result = ((parseAnnotations (this, &this->constants, bytes, next)));
|
||
break;
|
||
}
|
||
|
||
return (loader->putDeclaredAnnotations
|
||
(this, member_type, member_index, kind_req, result));
|
||
}
|
||
|
||
jobjectArray
|
||
java::lang::Class::getDeclaredAnnotations(::java::lang::reflect::Method *meth,
|
||
jboolean is_param)
|
||
{
|
||
unsigned short meth_index = _Jv_FromReflectedMethod (meth) - methods;
|
||
return getDeclaredAnnotations(JV_METHOD_ATTR, meth_index,
|
||
(is_param
|
||
? JV_PARAMETER_ANNOTATIONS_KIND
|
||
: JV_ANNOTATIONS_KIND));
|
||
}
|
||
|
||
jobjectArray
|
||
java::lang::Class::getDeclaredAnnotations(::java::lang::reflect::Constructor *cons,
|
||
jboolean is_param)
|
||
{
|
||
unsigned short meth_index = _Jv_FromReflectedConstructor (cons) - methods;
|
||
return getDeclaredAnnotations(JV_METHOD_ATTR, meth_index,
|
||
(is_param
|
||
? JV_PARAMETER_ANNOTATIONS_KIND
|
||
: JV_ANNOTATIONS_KIND));
|
||
}
|
||
|
||
jobjectArray
|
||
java::lang::Class::getDeclaredAnnotations(::java::lang::reflect::Field *fld)
|
||
{
|
||
unsigned short field_index = _Jv_FromReflectedField (fld) - fields;
|
||
return getDeclaredAnnotations(JV_FIELD_ATTR, field_index,
|
||
JV_ANNOTATIONS_KIND);
|
||
}
|
||
|
||
JArray< ::java::lang::annotation::Annotation *> *
|
||
java::lang::Class::getDeclaredAnnotationsInternal()
|
||
{
|
||
return (JArray< ::java::lang::annotation::Annotation *> *) getDeclaredAnnotations(JV_CLASS_ATTR, 0, JV_ANNOTATIONS_KIND);
|
||
}
|
||
|
||
static jclass
|
||
resolve_class_constant (jclass klass, _Jv_Constants *pool, int cpool_index)
|
||
{
|
||
check_constant (pool, cpool_index, JV_CONSTANT_Class);
|
||
// FIXME: what is the correct thing to do with an exception here?
|
||
return _Jv_Linker::resolve_pool_entry (klass, cpool_index, false).clazz;
|
||
}
|
||
|
||
jint
|
||
java::lang::Class::findInnerClassAttribute()
|
||
{
|
||
unsigned char *bytes = reflection_data;
|
||
if (bytes == NULL)
|
||
return -1;
|
||
while (true)
|
||
{
|
||
int type = read_u1 (bytes);
|
||
if (type == JV_DONE_ATTR)
|
||
break;
|
||
// After the type but before the length.
|
||
unsigned char *save = bytes;
|
||
int len = read_4 (bytes);
|
||
unsigned char *next = bytes + len;
|
||
if (type != JV_CLASS_ATTR)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
int kind = read_u1 (bytes, next);
|
||
if (kind != JV_INNER_CLASSES_KIND)
|
||
{
|
||
bytes = next;
|
||
continue;
|
||
}
|
||
return save - reflection_data;
|
||
}
|
||
return -1;
|
||
}
|
||
|
||
jint
|
||
java::lang::Class::findDeclaredClasses(JArray<jclass> *result,
|
||
jboolean publicOnly,
|
||
jint offset)
|
||
{
|
||
unsigned char *bytes = reflection_data + offset;
|
||
int len = read_4 (bytes);
|
||
unsigned char *next = bytes + len;
|
||
// Skip a byte.
|
||
read_u1 (bytes, next);
|
||
int n_classes = read_u2 (bytes, next);
|
||
int count = 0;
|
||
for (int i = 0; i < n_classes; ++i)
|
||
{
|
||
int inner_class_index = read_u2 (bytes, next);
|
||
int outer_class_index = read_u2 (bytes, next);
|
||
/*int inner_name_index = */ read_u2 (bytes, next);
|
||
int inner_flags = read_u2 (bytes, next);
|
||
|
||
if (inner_class_index == 0 || outer_class_index == 0)
|
||
continue;
|
||
if (resolve_class_constant (this, &constants, outer_class_index) == this)
|
||
{
|
||
jclass inner = resolve_class_constant (this, &constants,
|
||
inner_class_index);
|
||
if (! publicOnly
|
||
|| ((inner_flags
|
||
& java::lang::reflect::Modifier::PUBLIC) != 0))
|
||
{
|
||
if (result)
|
||
{
|
||
jclass *elts = elements (result);
|
||
elts[count] = inner;
|
||
}
|
||
++count;
|
||
}
|
||
}
|
||
}
|
||
|
||
return count;
|
||
}
|
||
|
||
JArray<jclass> *
|
||
java::lang::Class::getDeclaredClasses (jboolean publicOnly)
|
||
{
|
||
int offset = findInnerClassAttribute();
|
||
int count;
|
||
if (offset == -1)
|
||
{
|
||
// No InnerClasses attribute, so no declared classes.
|
||
count = 0;
|
||
}
|
||
else
|
||
count = findDeclaredClasses(NULL, publicOnly, offset);
|
||
JArray<jclass> *result
|
||
= (JArray<jclass> *) JvNewObjectArray (count, &java::lang::Class::class$,
|
||
NULL);
|
||
if (count > 0)
|
||
findDeclaredClasses(result, publicOnly, offset);
|
||
return result;
|
||
}
|
||
|
||
jclass
|
||
java::lang::Class::getDeclaringClass (void)
|
||
{
|
||
int offset = findInnerClassAttribute();
|
||
if (offset == -1)
|
||
return NULL;
|
||
|
||
unsigned char *bytes = reflection_data + offset;
|
||
int len = read_4 (bytes);
|
||
unsigned char *next = bytes + len;
|
||
// Skip a byte.
|
||
read_u1 (bytes, next);
|
||
int n_classes = read_u2 (bytes, next);
|
||
for (int i = 0; i < n_classes; ++i)
|
||
{
|
||
int inner_class_index = read_u2 (bytes, next);
|
||
int outer_class_index = read_u2 (bytes, next);
|
||
/*int inner_name_index = */read_u2 (bytes, next);
|
||
/*int inner_flags = */read_u2 (bytes, next);
|
||
|
||
if (inner_class_index == 0 || outer_class_index == 0)
|
||
continue;
|
||
if (resolve_class_constant (this, &constants, inner_class_index) == this)
|
||
return resolve_class_constant (this, &constants, outer_class_index);
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
jboolean
|
||
java::lang::Class::isAnonymousClass()
|
||
{
|
||
int offset = findInnerClassAttribute();
|
||
if (offset == -1)
|
||
return false;
|
||
|
||
unsigned char *bytes = reflection_data + offset;
|
||
int len = read_4 (bytes);
|
||
unsigned char *next = bytes + len;
|
||
// Skip a byte.
|
||
read_u1 (bytes, next);
|
||
int n_classes = read_u2 (bytes, next);
|
||
for (int i = 0; i < n_classes; ++i)
|
||
{
|
||
int inner_class_index = read_u2 (bytes, next);
|
||
/*int outer_class_index = */read_u2 (bytes, next);
|
||
int inner_name_index = read_u2 (bytes, next);
|
||
/*int inner_flags = */read_u2 (bytes, next);
|
||
|
||
if (inner_class_index == 0)
|
||
continue;
|
||
if (resolve_class_constant (this, &constants, inner_class_index) == this)
|
||
return inner_name_index == 0;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
jboolean
|
||
java::lang::Class::isLocalClass()
|
||
{
|
||
_Jv_word indexes;
|
||
indexes.i = getEnclosingMethodData();
|
||
return indexes.i != 0;
|
||
}
|
||
|
||
jboolean
|
||
java::lang::Class::isMemberClass()
|
||
{
|
||
// FIXME: is this correct?
|
||
return !isLocalClass() && getDeclaringClass() != NULL;
|
||
}
|
||
|
||
|
||
|
||
//
|
||
// Some class-related convenience functions.
|
||
//
|
||
|
||
// Find a method declared in the class. If it is not declared locally
|
||
// (or if it is inherited), return NULL.
|
||
_Jv_Method *
|
||
_Jv_GetMethodLocal (jclass klass, _Jv_Utf8Const *name,
|
||
_Jv_Utf8Const *signature)
|
||
{
|
||
for (int i = 0; i < klass->method_count; ++i)
|
||
{
|
||
if (_Jv_equalUtf8Consts (name, klass->methods[i].name)
|
||
&& _Jv_equalUtf8Consts (signature, klass->methods[i].signature))
|
||
return &klass->methods[i];
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
_Jv_Method *
|
||
_Jv_LookupDeclaredMethod (jclass klass, _Jv_Utf8Const *name,
|
||
_Jv_Utf8Const *signature,
|
||
jclass *declarer_result)
|
||
{
|
||
for (; klass; klass = klass->getSuperclass())
|
||
{
|
||
_Jv_Method *meth = _Jv_GetMethodLocal (klass, name, signature);
|
||
|
||
if (meth)
|
||
{
|
||
if (declarer_result)
|
||
*declarer_result = klass;
|
||
return meth;
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
java::lang::reflect::Method *
|
||
_Jv_GetReflectedMethod (jclass klass, _Jv_Utf8Const *name,
|
||
_Jv_Utf8Const *signature)
|
||
{
|
||
for (; klass; klass = klass->getSuperclass())
|
||
{
|
||
_Jv_Method *meth = _Jv_GetMethodLocal (klass, name, signature);
|
||
if (meth)
|
||
{
|
||
using namespace java::lang::reflect;
|
||
Method *rmethod = new Method ();
|
||
rmethod->offset = (char*) meth - (char*) klass->methods;
|
||
rmethod->declaringClass = klass;
|
||
return rmethod;
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
#ifdef HAVE_TLS
|
||
|
||
// NOTE: MCACHE_SIZE should be a power of 2 minus one.
|
||
#define MCACHE_SIZE 31
|
||
|
||
struct _Jv_mcache
|
||
{
|
||
jclass klass;
|
||
_Jv_Method *method;
|
||
};
|
||
|
||
static __thread _Jv_mcache *method_cache;
|
||
#endif // HAVE_TLS
|
||
|
||
static void *
|
||
_Jv_FindMethodInCache (jclass klass MAYBE_UNUSED,
|
||
_Jv_Utf8Const *name MAYBE_UNUSED,
|
||
_Jv_Utf8Const *signature MAYBE_UNUSED)
|
||
{
|
||
#ifdef HAVE_TLS
|
||
_Jv_mcache *cache = method_cache;
|
||
if (cache)
|
||
{
|
||
int index = name->hash16 () & MCACHE_SIZE;
|
||
_Jv_mcache *mc = &cache[index];
|
||
_Jv_Method *m = mc->method;
|
||
|
||
if (mc->klass == klass
|
||
&& _Jv_equalUtf8Consts (m->name, name)
|
||
&& _Jv_equalUtf8Consts (m->signature, signature))
|
||
return mc->method->ncode;
|
||
}
|
||
#endif // HAVE_TLS
|
||
return NULL;
|
||
}
|
||
|
||
static void
|
||
_Jv_AddMethodToCache (jclass klass MAYBE_UNUSED,
|
||
_Jv_Method *method MAYBE_UNUSED)
|
||
{
|
||
#ifdef HAVE_TLS
|
||
if (method_cache == NULL)
|
||
method_cache = (_Jv_mcache *) _Jv_MallocUnchecked((MCACHE_SIZE + 1)
|
||
* sizeof (_Jv_mcache));
|
||
// If the allocation failed, just keep going.
|
||
if (method_cache != NULL)
|
||
{
|
||
int index = method->name->hash16 () & MCACHE_SIZE;
|
||
method_cache[index].method = method;
|
||
method_cache[index].klass = klass;
|
||
}
|
||
#endif // HAVE_TLS
|
||
}
|
||
|
||
// Free this thread's method cache. We explicitly manage this memory
|
||
// as the GC does not yet know how to scan TLS on all platforms.
|
||
void
|
||
_Jv_FreeMethodCache ()
|
||
{
|
||
#ifdef HAVE_TLS
|
||
if (method_cache != NULL)
|
||
{
|
||
_Jv_Free(method_cache);
|
||
method_cache = NULL;
|
||
}
|
||
#endif // HAVE_TLS
|
||
}
|
||
|
||
void *
|
||
_Jv_LookupInterfaceMethod (jclass klass, _Jv_Utf8Const *name,
|
||
_Jv_Utf8Const *signature)
|
||
{
|
||
using namespace java::lang::reflect;
|
||
|
||
void *ncode = _Jv_FindMethodInCache (klass, name, signature);
|
||
if (ncode != 0)
|
||
return ncode;
|
||
|
||
for (; klass; klass = klass->getSuperclass())
|
||
{
|
||
_Jv_Method *meth = _Jv_GetMethodLocal (klass, name, signature);
|
||
if (! meth)
|
||
continue;
|
||
|
||
if (Modifier::isStatic(meth->accflags))
|
||
throw new java::lang::IncompatibleClassChangeError
|
||
(_Jv_GetMethodString (klass, meth));
|
||
if (Modifier::isAbstract(meth->accflags))
|
||
throw new java::lang::AbstractMethodError
|
||
(_Jv_GetMethodString (klass, meth));
|
||
if (! Modifier::isPublic(meth->accflags))
|
||
throw new java::lang::IllegalAccessError
|
||
(_Jv_GetMethodString (klass, meth));
|
||
|
||
_Jv_AddMethodToCache (klass, meth);
|
||
|
||
return meth->ncode;
|
||
}
|
||
throw new java::lang::IncompatibleClassChangeError;
|
||
}
|
||
|
||
// Fast interface method lookup by index.
|
||
void *
|
||
_Jv_LookupInterfaceMethodIdx (jclass klass, jclass iface, int method_idx)
|
||
{
|
||
_Jv_IDispatchTable *cldt = klass->idt;
|
||
int idx = iface->ioffsets[cldt->iindex] + method_idx;
|
||
return cldt->itable[idx];
|
||
}
|
||
|
||
jboolean
|
||
_Jv_IsAssignableFrom (jclass source, jclass target)
|
||
{
|
||
if (source == target)
|
||
return true;
|
||
|
||
// If target is array, so must source be.
|
||
while (target->isArray ())
|
||
{
|
||
if (! source->isArray())
|
||
return false;
|
||
target = target->getComponentType();
|
||
source = source->getComponentType();
|
||
}
|
||
|
||
if (target->isInterface())
|
||
{
|
||
// Abstract classes have no IDT, and IDTs provide no way to check
|
||
// two interfaces for assignability.
|
||
if (__builtin_expect
|
||
(source->idt == NULL || source->isInterface(), false))
|
||
return _Jv_InterfaceAssignableFrom (source, target);
|
||
|
||
_Jv_IDispatchTable *cl_idt = source->idt;
|
||
|
||
if (__builtin_expect ((target->ioffsets == NULL), false))
|
||
return false; // No class implementing TARGET has been loaded.
|
||
jshort cl_iindex = cl_idt->iindex;
|
||
if (cl_iindex < target->ioffsets[0])
|
||
{
|
||
jshort offset = target->ioffsets[cl_iindex];
|
||
if (offset != -1 && offset < cl_idt->itable_length
|
||
&& cl_idt->itable[offset] == target)
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// Primitive TYPE classes are only assignable to themselves.
|
||
if (__builtin_expect (target->isPrimitive() || source->isPrimitive(), false))
|
||
return false;
|
||
|
||
if (target == &java::lang::Object::class$)
|
||
return true;
|
||
else if (source->ancestors == NULL || target->ancestors == NULL)
|
||
{
|
||
// We need this case when either SOURCE or TARGET has not has
|
||
// its constant-time tables prepared.
|
||
|
||
// At this point we know that TARGET can't be Object, so it is
|
||
// safe to use that as the termination point.
|
||
while (source && source != &java::lang::Object::class$)
|
||
{
|
||
if (source == target)
|
||
return true;
|
||
source = source->getSuperclass();
|
||
}
|
||
}
|
||
else if (source->depth >= target->depth
|
||
&& source->ancestors[source->depth - target->depth] == target)
|
||
return true;
|
||
|
||
return false;
|
||
}
|
||
|
||
// Interface type checking, the slow way. Returns TRUE if IFACE is a
|
||
// superinterface of SOURCE. This is used when SOURCE is also an interface,
|
||
// or a class with no interface dispatch table.
|
||
jboolean
|
||
_Jv_InterfaceAssignableFrom (jclass source, jclass iface)
|
||
{
|
||
for (int i = 0; i < source->interface_count; i++)
|
||
{
|
||
jclass interface = source->interfaces[i];
|
||
if (iface == interface
|
||
|| _Jv_InterfaceAssignableFrom (interface, iface))
|
||
return true;
|
||
}
|
||
|
||
if (!source->isInterface()
|
||
&& source->superclass
|
||
&& _Jv_InterfaceAssignableFrom (source->superclass, iface))
|
||
return true;
|
||
|
||
return false;
|
||
}
|
||
|
||
jboolean
|
||
_Jv_IsInstanceOf(jobject obj, jclass cl)
|
||
{
|
||
if (__builtin_expect (!obj, false))
|
||
return false;
|
||
return _Jv_IsAssignableFrom (JV_CLASS (obj), cl);
|
||
}
|
||
|
||
void *
|
||
_Jv_CheckCast (jclass c, jobject obj)
|
||
{
|
||
if (__builtin_expect
|
||
(obj != NULL && ! _Jv_IsAssignableFrom(JV_CLASS (obj), c), false))
|
||
throw new java::lang::ClassCastException
|
||
((new java::lang::StringBuffer
|
||
(obj->getClass()->getName()))->append
|
||
(JvNewStringUTF(" cannot be cast to "))->append
|
||
(c->getName())->toString());
|
||
|
||
return obj;
|
||
}
|
||
|
||
void
|
||
_Jv_CheckArrayStore (jobject arr, jobject obj)
|
||
{
|
||
if (obj)
|
||
{
|
||
JvAssert (arr != NULL);
|
||
jclass elt_class = (JV_CLASS (arr))->getComponentType();
|
||
if (elt_class == &java::lang::Object::class$)
|
||
return;
|
||
jclass obj_class = JV_CLASS (obj);
|
||
if (__builtin_expect
|
||
(! _Jv_IsAssignableFrom (obj_class, elt_class), false))
|
||
throw new java::lang::ArrayStoreException
|
||
((new java::lang::StringBuffer
|
||
(JvNewStringUTF("Cannot store ")))->append
|
||
(obj_class->getName())->append
|
||
(JvNewStringUTF(" in array of type "))->append
|
||
(elt_class->getName())->toString());
|
||
}
|
||
}
|
||
|
||
jboolean
|
||
_Jv_IsAssignableFromSlow (jclass source, jclass target)
|
||
{
|
||
// First, strip arrays.
|
||
while (target->isArray ())
|
||
{
|
||
// If target is array, source must be as well.
|
||
if (! source->isArray ())
|
||
return false;
|
||
target = target->getComponentType ();
|
||
source = source->getComponentType ();
|
||
}
|
||
|
||
// Quick success.
|
||
if (target == &java::lang::Object::class$)
|
||
return true;
|
||
|
||
// Ensure that the classes have their supers installed.
|
||
_Jv_Linker::wait_for_state (source, JV_STATE_LOADING);
|
||
_Jv_Linker::wait_for_state (target, JV_STATE_LOADING);
|
||
|
||
do
|
||
{
|
||
if (source == target)
|
||
return true;
|
||
|
||
if (target->isPrimitive () || source->isPrimitive ())
|
||
return false;
|
||
|
||
if (target->isInterface ())
|
||
{
|
||
for (int i = 0; i < source->interface_count; ++i)
|
||
{
|
||
// We use a recursive call because we also need to
|
||
// check superinterfaces.
|
||
if (_Jv_IsAssignableFromSlow (source->getInterface (i), target))
|
||
return true;
|
||
}
|
||
}
|
||
source = source->getSuperclass ();
|
||
}
|
||
while (source != NULL);
|
||
|
||
return false;
|
||
}
|
||
|
||
// Lookup an interface method by name. This is very similar to
|
||
// purpose to _getMethod, but the interfaces are quite different. It
|
||
// might be a good idea for _getMethod to call this function.
|
||
//
|
||
// Return true of the method is found, with the class in FOUND_CLASS
|
||
// and the index in INDEX.
|
||
bool
|
||
_Jv_getInterfaceMethod (jclass search_class, jclass &found_class, int &index,
|
||
const _Jv_Utf8Const *utf_name,
|
||
const _Jv_Utf8Const *utf_sig)
|
||
{
|
||
for (jclass klass = search_class; klass; klass = klass->getSuperclass())
|
||
{
|
||
// FIXME: Throw an exception?
|
||
if (!klass->isInterface ())
|
||
return false;
|
||
|
||
int max = klass->method_count;
|
||
int offset = 0;
|
||
for (int i = 0; i < max; ++i)
|
||
{
|
||
// Skip <clinit> here, as it will not be in the IDT.
|
||
if (klass->methods[i].name->first() == '<')
|
||
continue;
|
||
|
||
if (_Jv_equalUtf8Consts (klass->methods[i].name, utf_name)
|
||
&& _Jv_equalUtf8Consts (klass->methods[i].signature, utf_sig))
|
||
{
|
||
// Found it.
|
||
using namespace java::lang::reflect;
|
||
|
||
// FIXME: Method must be public. Throw an exception?
|
||
if (! Modifier::isPublic (klass->methods[i].accflags))
|
||
break;
|
||
|
||
found_class = klass;
|
||
// Interface method indexes count from 1.
|
||
index = offset + 1;
|
||
return true;
|
||
}
|
||
|
||
++offset;
|
||
}
|
||
}
|
||
|
||
// If we haven't found a match, and this class is an interface, then
|
||
// check all the superinterfaces.
|
||
if (search_class->isInterface())
|
||
{
|
||
for (int i = 0; i < search_class->interface_count; ++i)
|
||
{
|
||
using namespace java::lang::reflect;
|
||
bool found = _Jv_getInterfaceMethod (search_class->interfaces[i],
|
||
found_class, index,
|
||
utf_name, utf_sig);
|
||
if (found)
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
#ifdef INTERPRETER
|
||
_Jv_MethodBase *
|
||
_Jv_FindInterpreterMethod (jclass klass, jmethodID desired_method)
|
||
{
|
||
using namespace java::lang::reflect;
|
||
|
||
_Jv_InterpClass *iclass
|
||
= reinterpret_cast<_Jv_InterpClass *> (klass->aux_info);
|
||
_Jv_MethodBase **imethods = _Jv_GetFirstMethod (iclass);
|
||
|
||
for (int i = 0; i < JvNumMethods (klass); ++i)
|
||
{
|
||
_Jv_MethodBase *imeth = imethods[i];
|
||
if (imeth->get_method () == desired_method)
|
||
return imeth;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
#endif
|
||
|
||
// Return Utf8 name of a class. This function is here for code that
|
||
// can't access klass->name directly.
|
||
_Jv_Utf8Const*
|
||
_Jv_GetClassNameUtf8 (jclass klass)
|
||
{
|
||
return klass->name;
|
||
}
|
||
|
||
jclass
|
||
_Jv_GetMethodDeclaringClass (jmethodID method)
|
||
{
|
||
_Jv_StackTrace::UpdateNCodeMap ();
|
||
jobject obj = reinterpret_cast<jobject> (method->ncode);
|
||
return reinterpret_cast<jclass> (_Jv_StackTrace::ncodeMap->get (obj));
|
||
}
|
||
|
||
jbyte
|
||
_Jv_GetClassState (jclass klass)
|
||
{
|
||
return klass->state;
|
||
}
|
||
|
||
#ifdef INTERPRETER
|
||
jstring
|
||
_Jv_GetInterpClassSourceFile (jclass klass)
|
||
{
|
||
if (_Jv_IsInterpretedClass (klass))
|
||
{
|
||
_Jv_InterpClass *iclass =
|
||
reinterpret_cast<_Jv_InterpClass *> (klass->aux_info);
|
||
return iclass->source_file_name;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
#endif
|