#include <config.h>
#include <limits.h>
#include <string.h>
#include <stddef.h>
#include <stdio.h>
#pragma implementation "Class.h"
#include <gcj/cni.h>
#include <jvm.h>
#include <java-threads.h>
#include <java/lang/Class.h>
#include <java/lang/ClassLoader.h>
#include <java/lang/String.h>
#include <java/lang/reflect/Modifier.h>
#include <java/lang/reflect/Member.h>
#include <java/lang/reflect/Method.h>
#include <java/lang/reflect/Field.h>
#include <java/lang/reflect/Constructor.h>
#include <java/lang/AbstractMethodError.h>
#include <java/lang/ArrayStoreException.h>
#include <java/lang/ClassCastException.h>
#include <java/lang/ClassNotFoundException.h>
#include <java/lang/ExceptionInInitializerError.h>
#include <java/lang/IllegalAccessException.h>
#include <java/lang/IllegalAccessError.h>
#include <java/lang/IllegalArgumentException.h>
#include <java/lang/IncompatibleClassChangeError.h>
#include <java/lang/NoSuchFieldError.h>
#include <java/lang/ArrayIndexOutOfBoundsException.h>
#include <java/lang/InstantiationException.h>
#include <java/lang/NoClassDefFoundError.h>
#include <java/lang/NoSuchFieldException.h>
#include <java/lang/NoSuchMethodError.h>
#include <java/lang/NoSuchMethodException.h>
#include <java/lang/Thread.h>
#include <java/lang/NullPointerException.h>
#include <java/lang/RuntimePermission.h>
#include <java/lang/System.h>
#include <java/lang/SecurityManager.h>
#include <java/lang/StringBuffer.h>
#include <java/lang/VMClassLoader.h>
#include <gnu/gcj/runtime/StackTrace.h>
#include <gcj/method.h>
#include <gnu/gcj/runtime/MethodRef.h>
#include <gnu/gcj/RawData.h>
#include <java/lang/VerifyError.h>
#include <java-cpool.h>
#include <java-interp.h>
#include <java-assert.h>
#include <execution.h>
using namespace gcj;
jclass
java::lang::Class::forName (jstring className, jboolean initialize,
java::lang::ClassLoader *loader)
{
if (! className)
throw new java::lang::NullPointerException;
jsize length = _Jv_GetStringUTFLength (className);
char buffer[length];
_Jv_GetStringUTFRegion (className, 0, className->length(), buffer);
_Jv_Utf8Const *name = _Jv_makeUtf8Const (buffer, length);
if (! _Jv_VerifyClassName (name))
throw new java::lang::ClassNotFoundException (className);
jclass klass = (buffer[0] == '['
? _Jv_FindClassFromSignature (name->chars(), loader)
: _Jv_FindClass (name, loader));
if (klass == NULL)
throw new java::lang::ClassNotFoundException (className);
if (initialize)
_Jv_InitClass (klass);
return klass;
}
jclass
java::lang::Class::forName (jstring className)
{
java::lang::ClassLoader *loader = NULL;
gnu::gcj::runtime::StackTrace *t
= new gnu::gcj::runtime::StackTrace(4);
java::lang::Class *klass = NULL;
try
{
for (int i = 1; !klass; i++)
{
klass = t->classAt (i);
}
loader = klass->getClassLoaderInternal();
}
catch (::java::lang::ArrayIndexOutOfBoundsException *e)
{
}
return forName (className, true, loader);
}
java::lang::ClassLoader *
java::lang::Class::getClassLoader (void)
{
java::lang::SecurityManager *s = java::lang::System::getSecurityManager();
if (s != NULL)
{
gnu::gcj::runtime::StackTrace *t
= new gnu::gcj::runtime::StackTrace(4);
Class *caller = NULL;
ClassLoader *caller_loader = NULL;
try
{
for (int i = 1; !caller; i++)
{
caller = t->classAt (i);
}
caller_loader = caller->getClassLoaderInternal();
}
catch (::java::lang::ArrayIndexOutOfBoundsException *e)
{
}
if (caller_loader != NULL && ! caller_loader->isAncestorOf(loader))
s->checkPermission (new RuntimePermission (JvNewStringLatin1 ("getClassLoader")));
}
if (isPrimitive ())
return NULL;
return loader ? loader : ClassLoader::systemClassLoader;
}
java::lang::reflect::Constructor *
java::lang::Class::getConstructor (JArray<jclass> *param_types)
{
memberAccessCheck(java::lang::reflect::Member::PUBLIC);
jstring partial_sig = getSignature (param_types, true);
jint hash = partial_sig->hashCode ();
int i = isPrimitive () ? 0 : method_count;
while (--i >= 0)
{
if (_Jv_equalUtf8Consts (methods[i].name, init_name)
&& _Jv_equal (methods[i].signature, partial_sig, hash))
{
using namespace java::lang::reflect;
if (! Modifier::isPublic(methods[i].accflags))
break;
Constructor *cons = new Constructor ();
cons->offset = (char *) (&methods[i]) - (char *) methods;
cons->declaringClass = this;
return cons;
}
}
throw new java::lang::NoSuchMethodException (_Jv_NewStringUtf8Const (init_name));
}
JArray<java::lang::reflect::Constructor *> *
java::lang::Class::_getConstructors (jboolean declared)
{
memberAccessCheck(java::lang::reflect::Member::PUBLIC);
int numConstructors = 0;
int max = isPrimitive () ? 0 : method_count;
int i;
for (i = max; --i >= 0; )
{
_Jv_Method *method = &methods[i];
if (method->name == NULL
|| ! _Jv_equalUtf8Consts (method->name, init_name))
continue;
if (! declared
&& ! java::lang::reflect::Modifier::isPublic(method->accflags))
continue;
numConstructors++;
}
JArray<java::lang::reflect::Constructor *> *result
= (JArray<java::lang::reflect::Constructor *> *)
JvNewObjectArray (numConstructors,
&java::lang::reflect::Constructor::class$,
NULL);
java::lang::reflect::Constructor** cptr = elements (result);
for (i = 0; i < max; i++)
{
_Jv_Method *method = &methods[i];
if (method->name == NULL
|| ! _Jv_equalUtf8Consts (method->name, init_name))
continue;
if (! declared
&& ! java::lang::reflect::Modifier::isPublic(method->accflags))
continue;
java::lang::reflect::Constructor *cons
= new java::lang::reflect::Constructor ();
cons->offset = (char *) method - (char *) methods;
cons->declaringClass = this;
*cptr++ = cons;
}
return result;
}
java::lang::reflect::Constructor *
java::lang::Class::getDeclaredConstructor (JArray<jclass> *param_types)
{
memberAccessCheck(java::lang::reflect::Member::DECLARED);
jstring partial_sig = getSignature (param_types, true);
jint hash = partial_sig->hashCode ();
int i = isPrimitive () ? 0 : method_count;
while (--i >= 0)
{
if (_Jv_equalUtf8Consts (methods[i].name, init_name)
&& _Jv_equal (methods[i].signature, partial_sig, hash))
{
using namespace java::lang::reflect;
Constructor *cons = new Constructor ();
cons->offset = (char *) (&methods[i]) - (char *) methods;
cons->declaringClass = this;
return cons;
}
}
throw new java::lang::NoSuchMethodException (_Jv_NewStringUtf8Const (init_name));
}
java::lang::reflect::Field *
java::lang::Class::getField (jstring name, jint hash)
{
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;
if (! (field->getModifiers() & java::lang::reflect::Modifier::PUBLIC))
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->getField(name, hash);
for (int i = 0; i < interface_count && rfield == NULL; ++i)
rfield = interfaces[i]->getField (name, hash);
return rfield;
}
java::lang::reflect::Field *
java::lang::Class::getDeclaredField (jstring name)
{
memberAccessCheck(java::lang::reflect::Member::DECLARED);
int hash = name->hashCode();
for (int i = 0; i < field_count; i++)
{
_Jv_Field *field = &fields[i];
if (! _Jv_equal (field->name, name, hash))
continue;
java::lang::reflect::Field* rfield = new java::lang::reflect::Field ();
rfield->offset = (char*) field - (char*) fields;
rfield->declaringClass = this;
rfield->name = name;
return rfield;
}
throw new java::lang::NoSuchFieldException (name);
}
JArray<java::lang::reflect::Field *> *
java::lang::Class::getDeclaredFields (jboolean public_only)
{
int size;
if (public_only)
{
size = 0;
for (int i = 0; i < field_count; ++i)
{
_Jv_Field *field = &fields[i];
if ((field->flags & java::lang::reflect::Modifier::PUBLIC))
++size;
}
}
else
size = field_count;
JArray<java::lang::reflect::Field *> *result
= (JArray<java::lang::reflect::Field *> *)
JvNewObjectArray (size, &java::lang::reflect::Field::class$, NULL);
java::lang::reflect::Field** fptr = elements (result);
for (int i = 0; i < field_count; i++)
{
_Jv_Field *field = &fields[i];
if (public_only
&& ! (field->flags & java::lang::reflect::Modifier::PUBLIC))
continue;
java::lang::reflect::Field* rfield = new java::lang::reflect::Field ();
rfield->offset = (char*) field - (char*) fields;
rfield->declaringClass = this;
*fptr++ = rfield;
}
return result;
}
void
java::lang::Class::getSignature (java::lang::StringBuffer *buffer)
{
if (isPrimitive())
buffer->append((jchar) method_count);
else
{
jstring name = getName();
if (name->charAt(0) != '[')
buffer->append((jchar) 'L');
buffer->append(name);
if (name->charAt(0) != '[')
buffer->append((jchar) ';');
}
}
jstring
java::lang::Class::getSignature (JArray<jclass> *param_types,
jboolean is_constructor)
{
java::lang::StringBuffer *buf = new java::lang::StringBuffer ();
buf->append((jchar) '(');
if (param_types != NULL)
{
jclass *v = elements (param_types);
for (int i = 0; i < param_types->length; ++i)
v[i]->getSignature(buf);
}
buf->append((jchar) ')');
if (is_constructor)
buf->append((jchar) 'V');
return buf->toString();
}
java::lang::reflect::Method *
java::lang::Class::_getDeclaredMethod (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);
int i = isPrimitive () ? 0 : method_count;
while (--i >= 0)
{
if (_Jv_equalUtf8Consts (methods[i].name, utf_name)
&& _Jv_equaln (methods[i].signature, partial_sig, p_len)
&& (methods[i].accflags
& java::lang::reflect::Modifier::INVISIBLE) == 0)
{
using namespace java::lang::reflect;
Method *rmethod = new Method ();
rmethod->offset = (char*) (&methods[i]) - (char*) methods;
rmethod->declaringClass = this;
return rmethod;
}
}
return NULL;
}
JArray<java::lang::reflect::Method *> *
java::lang::Class::getDeclaredMethods (void)
{
memberAccessCheck(java::lang::reflect::Member::DECLARED);
int numMethods = 0;
int max = isPrimitive () ? 0 : method_count;
int i;
for (i = max; --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)
|| (methods[i].accflags
& java::lang::reflect::Modifier::INVISIBLE) != 0)
continue;
numMethods++;
}
JArray<java::lang::reflect::Method *> *result
= (JArray<java::lang::reflect::Method *> *)
JvNewObjectArray (numMethods, &java::lang::reflect::Method::class$, NULL);
java::lang::reflect::Method** mptr = elements (result);
for (i = 0; i < max; i++)
{
_Jv_Method *method = &methods[i];
if (method->name == NULL
|| _Jv_equalUtf8Consts (method->name, clinit_name)
|| _Jv_equalUtf8Consts (method->name, init_name)
|| _Jv_equalUtf8Consts (method->name, finit_name)
|| (methods[i].accflags
& java::lang::reflect::Modifier::INVISIBLE) != 0)
continue;
java::lang::reflect::Method* rmethod
= new java::lang::reflect::Method ();
rmethod->offset = (char*) method - (char*) methods;
rmethod->declaringClass = this;
*mptr++ = rmethod;
}
return result;
}
jstring
java::lang::Class::getName (void)
{
return name->toString();
}
JArray<jclass> *
java::lang::Class::getClasses (void)
{
JArray<jclass> *result
= (JArray<jclass> *) JvNewObjectArray (0, &java::lang::Class::class$,
NULL);
return result;
}
JArray<jclass> *
java::lang::Class::getDeclaredClasses (void)
{
memberAccessCheck (java::lang::reflect::Member::DECLARED);
JArray<jclass> *result
= (JArray<jclass> *) JvNewObjectArray (0, &java::lang::Class::class$,
NULL);
return result;
}
jclass
java::lang::Class::getDeclaringClass (void)
{
return NULL;
}
JArray<jclass> *
java::lang::Class::getInterfaces (void)
{
jobjectArray r = JvNewObjectArray (interface_count, getClass (), NULL);
jobject *data = elements (r);
for (int i = 0; i < interface_count; ++i)
{
typedef unsigned int uaddr __attribute__ ((mode (pointer)));
data[i] = interfaces[i];
if ((uaddr)data[i] < (uaddr)constants.size)
fprintf (stderr, "ERROR !!!\n");
}
return reinterpret_cast<JArray<jclass> *> (r);
}
java::lang::reflect::Method *
java::lang::Class::_getMethod (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)
&& (klass->methods[i].accflags
& java::lang::reflect::Modifier::INVISIBLE) == 0)
{
using namespace java::lang::reflect;
if (! Modifier::isPublic (klass->methods[i].accflags))
break;
Method *rmethod = new Method ();
rmethod->offset = ((char *) (&klass->methods[i])
- (char *) klass->methods);
rmethod->declaringClass = klass;
return rmethod;
}
}
}
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;
}
jint
java::lang::Class::_getMethods (JArray<java::lang::reflect::Method *> *result,
jint offset)
{
jint count = 0;
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;
if (! java::lang::reflect::Modifier::isPublic (method->accflags))
continue;
if (result != NULL)
{
jboolean add = true;
java::lang::reflect::Method **mp = elements (result);
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;
if (getSuperclass () != NULL)
{
jint s_count = getSuperclass()->_getMethods (result, offset);
offset += s_count;
count += s_count;
}
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);
jint count = _getMethods (NULL, 0);
JArray<Method *> *result
= ((JArray<Method *> *) JvNewObjectArray (count,
&Method::class$,
NULL));
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)
{
_Jv_InitClass (this);
_Jv_InitClass (klass);
return _Jv_IsAssignableFrom (this, klass);
}
jboolean
java::lang::Class::isInstance (jobject obj)
{
if (! obj)
return false;
_Jv_InitClass (this);
return _Jv_IsAssignableFrom (this, JV_CLASS (obj));
}
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);
}
void
java::lang::Class::initializeClass (void)
{
if (state == JV_STATE_DONE)
return;
{
JvSynchronize sync (this);
if (state < JV_STATE_LINKED)
java::lang::VMClassLoader::resolveClass (this);
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 ();
if (state == JV_STATE_DONE || state == JV_STATE_IN_PROGRESS)
return;
if (state == JV_STATE_ERROR)
throw new java::lang::NoClassDefFoundError (getName());
thread = self;
_Jv_Linker::wait_for_state (this, JV_STATE_LINKED);
state = JV_STATE_IN_PROGRESS;
}
if (! isInterface () && superclass)
{
try
{
_Jv_InitClass (superclass);
}
catch (java::lang::Throwable *except)
{
JvSynchronize sync (this);
state = JV_STATE_ERROR;
notifyAll ();
throw except;
}
}
try
{
_Jv_Method *meth = _Jv_GetMethodLocal (this, clinit_name,
void_signature);
if (meth)
((void (*) (void)) meth->ncode) ();
}
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 ();
}
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;
}
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))
{
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);
}
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;
}
_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;
}
#define MCACHE_SIZE 1023
struct _Jv_mcache
{
jclass klass;
_Jv_Method *method;
};
static _Jv_mcache method_cache[MCACHE_SIZE + 1];
static void *
_Jv_FindMethodInCache (jclass klass,
_Jv_Utf8Const *name,
_Jv_Utf8Const *signature)
{
int index = name->hash16 () & MCACHE_SIZE;
_Jv_mcache *mc = method_cache + index;
_Jv_Method *m = mc->method;
if (mc->klass == klass
&& m != NULL && _Jv_equalUtf8Consts (m->name, name)
&& _Jv_equalUtf8Consts (m->signature, signature))
return mc->method->ncode;
return NULL;
}
static void
_Jv_AddMethodToCache (jclass klass,
_Jv_Method *method)
{
_Jv_MonitorEnter (&java::lang::Class::class$);
int index = method->name->hash16 () & MCACHE_SIZE;
method_cache[index].method = method;
method_cache[index].klass = klass;
_Jv_MonitorExit (&java::lang::Class::class$);
}
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;
}
void *
_Jv_LookupInterfaceMethodIdx (jclass klass, jclass iface, int method_idx)
{
_Jv_IDispatchTable *cldt = klass->idt;
int idx = iface->idt->iface.ioffsets[cldt->cls.iindex] + method_idx;
return cldt->cls.itable[idx];
}
jboolean
_Jv_IsAssignableFrom (jclass target, jclass source)
{
if (source == target)
return true;
while (target->isArray ())
{
if (! source->isArray())
return false;
target = target->getComponentType();
source = source->getComponentType();
}
if (target->isInterface())
{
if (__builtin_expect
(source->idt == NULL || source->isInterface(), false))
return _Jv_InterfaceAssignableFrom (target, source);
_Jv_IDispatchTable *cl_idt = source->idt;
_Jv_IDispatchTable *if_idt = target->idt;
if (__builtin_expect ((if_idt == NULL), false))
return false; jshort cl_iindex = cl_idt->cls.iindex;
if (cl_iindex < if_idt->iface.ioffsets[0])
{
jshort offset = if_idt->iface.ioffsets[cl_iindex];
if (offset != -1 && offset < cl_idt->cls.itable_length
&& cl_idt->cls.itable[offset] == target)
return true;
}
return false;
}
if (__builtin_expect (target->isPrimitive() || source->isPrimitive(), false))
return false;
if (target == &java::lang::Object::class$)
return true;
else if (source->ancestors == NULL || target->ancestors == NULL)
{
while (source && source != &java::lang::Object::class$)
{
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;
}
jboolean
_Jv_InterfaceAssignableFrom (jclass iface, jclass source)
{
for (int i = 0; i < source->interface_count; i++)
{
jclass interface = source->interfaces[i];
if (iface == interface
|| _Jv_InterfaceAssignableFrom (iface, interface))
return true;
}
if (!source->isInterface()
&& source->superclass
&& _Jv_InterfaceAssignableFrom (iface, source->superclass))
return true;
return false;
}
jboolean
_Jv_IsInstanceOf(jobject obj, jclass cl)
{
if (__builtin_expect (!obj, false))
return false;
return (_Jv_IsAssignableFrom (cl, JV_CLASS (obj)));
}
void *
_Jv_CheckCast (jclass c, jobject obj)
{
if (__builtin_expect
(obj != NULL && ! _Jv_IsAssignableFrom(c, JV_CLASS (obj)), 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$)
return;
jclass obj_class = JV_CLASS (obj);
if (__builtin_expect
(! _Jv_IsAssignableFrom (elt_class, obj_class), false))
throw new java::lang::ArrayStoreException
((new java::lang::StringBuffer
(JvNewStringUTF("Cannot store ")))->append
(obj_class->getName())->append
(JvNewStringUTF(" in array of type "))->append
(elt_class->getName())->toString());
}
}
jboolean
_Jv_IsAssignableFromSlow (jclass target, jclass source)
{
while (target->isArray ())
{
if (! source->isArray ())
return false;
target = target->getComponentType ();
source = source->getComponentType ();
}
if (target == &java::lang::Object::class$)
return true;
_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)
{
if (_Jv_IsAssignableFromSlow (target, source->getInterface (i)))
return true;
}
}
source = source->getSuperclass ();
}
while (source != NULL);
return false;
}
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())
{
if (!klass->isInterface ())
return false;
int i = klass->method_count;
while (--i >= 0)
{
if (_Jv_equalUtf8Consts (klass->methods[i].name, utf_name)
&& _Jv_equalUtf8Consts (klass->methods[i].signature, utf_sig))
{
using namespace java::lang::reflect;
if (! Modifier::isPublic (klass->methods[i].accflags))
break;
found_class = klass;
index = i+1;
return true;
}
}
}
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;
}