1 // natClass.cc - Implementation of java.lang.Class native methods.
3 /* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
4 Free Software Foundation
6 This file is part of libgcj.
8 This software is copyrighted work licensed under the terms of the
9 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
19 #pragma implementation "Class.h"
23 #include <java-threads.h>
25 #include <java/lang/Class.h>
26 #include <java/lang/ClassLoader.h>
27 #include <java/lang/String.h>
28 #include <java/lang/reflect/Modifier.h>
29 #include <java/lang/reflect/Member.h>
30 #include <java/lang/reflect/Method.h>
31 #include <java/lang/reflect/Field.h>
32 #include <java/lang/reflect/Constructor.h>
33 #include <java/lang/AbstractMethodError.h>
34 #include <java/lang/ArrayStoreException.h>
35 #include <java/lang/ClassCastException.h>
36 #include <java/lang/ClassNotFoundException.h>
37 #include <java/lang/ExceptionInInitializerError.h>
38 #include <java/lang/IllegalAccessException.h>
39 #include <java/lang/IllegalAccessError.h>
40 #include <java/lang/IllegalArgumentException.h>
41 #include <java/lang/IncompatibleClassChangeError.h>
42 #include <java/lang/NoSuchFieldError.h>
43 #include <java/lang/ArrayIndexOutOfBoundsException.h>
44 #include <java/lang/InstantiationException.h>
45 #include <java/lang/NoClassDefFoundError.h>
46 #include <java/lang/NoSuchFieldException.h>
47 #include <java/lang/NoSuchMethodError.h>
48 #include <java/lang/NoSuchMethodException.h>
49 #include <java/lang/Thread.h>
50 #include <java/lang/NullPointerException.h>
51 #include <java/lang/RuntimePermission.h>
52 #include <java/lang/System.h>
53 #include <java/lang/SecurityException.h>
54 #include <java/lang/SecurityManager.h>
55 #include <java/lang/StringBuffer.h>
56 #include <java/lang/VMClassLoader.h>
57 #include <gcj/method.h>
58 #include <gnu/gcj/RawData.h>
59 #include <java/lang/VerifyError.h>
60 #include <java/lang/InternalError.h>
61 #include <java/lang/TypeNotPresentException.h>
62 #include <java/lang/Byte.h>
63 #include <java/lang/Short.h>
64 #include <java/lang/Integer.h>
65 #include <java/lang/Float.h>
66 #include <java/lang/Double.h>
67 #include <java/lang/Long.h>
68 #include <java/lang/Character.h>
69 #include <java/lang/Boolean.h>
70 #include <java/lang/annotation/Annotation.h>
71 #include <java/util/HashMap.h>
72 #include <java/util/Map.h>
73 #include <sun/reflect/annotation/AnnotationInvocationHandler.h>
74 #include <java/lang/Enum.h>
76 #include <java-cpool.h>
77 #include <java-interp.h>
78 #include <java-assert.h>
79 #include <java-stack.h>
80 #include <execution.h>
87 java::lang::Class::forName (jstring className, jboolean initialize,
88 java::lang::ClassLoader *loader)
91 throw new java::lang::NullPointerException;
93 jsize length = _Jv_GetStringUTFLength (className);
95 _Jv_GetStringUTFRegion (className, 0, className->length(), buffer);
97 _Jv_Utf8Const *name = _Jv_makeUtf8Const (buffer, length);
99 if (! _Jv_VerifyClassName (name))
100 throw new java::lang::ClassNotFoundException (className);
102 jclass klass = (buffer[0] == '['
103 ? _Jv_FindClassFromSignature (name->chars(), loader)
104 : _Jv_FindClass (name, loader));
107 throw new java::lang::ClassNotFoundException (className);
110 _Jv_InitClass (klass);
116 java::lang::Class::forName (jstring className)
118 java::lang::ClassLoader *loader = NULL;
120 jclass caller = _Jv_StackTrace::GetCallingClass (&Class::class$);
122 loader = caller->getClassLoaderInternal();
124 return forName (className, true, loader);
127 java::lang::ClassLoader *
128 java::lang::Class::getClassLoader (void)
130 java::lang::SecurityManager *s = java::lang::System::getSecurityManager();
133 jclass caller = _Jv_StackTrace::GetCallingClass (&Class::class$);
134 return getClassLoader (caller);
140 java::lang::ClassLoader *
141 java::lang::Class::getClassLoader (jclass caller)
143 java::lang::SecurityManager *s = java::lang::System::getSecurityManager();
146 ClassLoader *caller_loader = caller->getClassLoaderInternal();
148 // If the caller has a non-null class loader, and that loader
149 // is not this class' loader or an ancestor thereof, then do a
151 if (caller_loader != NULL && ! caller_loader->isAncestorOf(loader))
152 s->checkPermission (new RuntimePermission (JvNewStringLatin1 ("getClassLoader")));
158 java::lang::reflect::Constructor *
159 java::lang::Class::getConstructor (JArray<jclass> *param_types)
161 memberAccessCheck(java::lang::reflect::Member::PUBLIC);
163 jstring partial_sig = getSignature (param_types, true);
164 jint hash = partial_sig->hashCode ();
166 int i = isPrimitive () ? 0 : method_count;
169 if (_Jv_equalUtf8Consts (methods[i].name, init_name)
170 && _Jv_equal (methods[i].signature, partial_sig, hash))
172 // Found it. For getConstructor, the constructor must be
174 using namespace java::lang::reflect;
175 if (! Modifier::isPublic(methods[i].accflags))
177 Constructor *cons = new Constructor ();
178 cons->offset = (char *) (&methods[i]) - (char *) methods;
179 cons->declaringClass = this;
183 throw new java::lang::NoSuchMethodException (_Jv_NewStringUtf8Const (init_name));
186 JArray<java::lang::reflect::Constructor *> *
187 java::lang::Class::getDeclaredConstructors (jboolean publicOnly)
189 int numConstructors = 0;
190 int max = isPrimitive () ? 0 : method_count;
192 for (i = max; --i >= 0; )
194 _Jv_Method *method = &methods[i];
195 if (method->name == NULL
196 || ! _Jv_equalUtf8Consts (method->name, init_name))
199 && ! java::lang::reflect::Modifier::isPublic(method->accflags))
203 JArray<java::lang::reflect::Constructor *> *result
204 = (JArray<java::lang::reflect::Constructor *> *)
205 JvNewObjectArray (numConstructors,
206 &java::lang::reflect::Constructor::class$,
208 java::lang::reflect::Constructor** cptr = elements (result);
209 for (i = 0; i < max; i++)
211 _Jv_Method *method = &methods[i];
212 if (method->name == NULL
213 || ! _Jv_equalUtf8Consts (method->name, init_name))
216 && ! java::lang::reflect::Modifier::isPublic(method->accflags))
218 java::lang::reflect::Constructor *cons
219 = new java::lang::reflect::Constructor ();
220 cons->offset = (char *) method - (char *) methods;
221 cons->declaringClass = this;
227 java::lang::reflect::Constructor *
228 java::lang::Class::getDeclaredConstructor (JArray<jclass> *param_types)
230 memberAccessCheck(java::lang::reflect::Member::DECLARED);
232 jstring partial_sig = getSignature (param_types, true);
233 jint hash = partial_sig->hashCode ();
235 int i = isPrimitive () ? 0 : method_count;
238 if (_Jv_equalUtf8Consts (methods[i].name, init_name)
239 && _Jv_equal (methods[i].signature, partial_sig, hash))
242 using namespace java::lang::reflect;
243 Constructor *cons = new Constructor ();
244 cons->offset = (char *) (&methods[i]) - (char *) methods;
245 cons->declaringClass = this;
249 throw new java::lang::NoSuchMethodException (_Jv_NewStringUtf8Const (init_name));
252 java::lang::reflect::Field *
253 java::lang::Class::getField (jstring name, jint hash)
255 java::lang::reflect::Field* rfield;
256 for (int i = 0; i < field_count; i++)
258 _Jv_Field *field = &fields[i];
259 if (! _Jv_equal (field->name, name, hash))
261 if (! (field->getModifiers() & java::lang::reflect::Modifier::PUBLIC))
263 rfield = new java::lang::reflect::Field ();
264 rfield->offset = (char*) field - (char*) fields;
265 rfield->declaringClass = this;
269 jclass superclass = getSuperclass();
270 if (superclass == NULL)
272 rfield = superclass->getField(name, hash);
273 for (int i = 0; i < interface_count && rfield == NULL; ++i)
274 rfield = interfaces[i]->getField (name, hash);
278 java::lang::reflect::Field *
279 java::lang::Class::getDeclaredField (jstring name)
281 memberAccessCheck(java::lang::reflect::Member::DECLARED);
282 int hash = name->hashCode();
283 for (int i = 0; i < field_count; i++)
285 _Jv_Field *field = &fields[i];
286 if (! _Jv_equal (field->name, name, hash))
288 java::lang::reflect::Field* rfield = new java::lang::reflect::Field ();
289 rfield->offset = (char*) field - (char*) fields;
290 rfield->declaringClass = this;
294 throw new java::lang::NoSuchFieldException (name);
297 JArray<java::lang::reflect::Field *> *
298 java::lang::Class::getDeclaredFields (jboolean public_only)
304 for (int i = 0; i < field_count; ++i)
306 _Jv_Field *field = &fields[i];
307 if ((field->flags & java::lang::reflect::Modifier::PUBLIC))
314 JArray<java::lang::reflect::Field *> *result
315 = (JArray<java::lang::reflect::Field *> *)
316 JvNewObjectArray (size, &java::lang::reflect::Field::class$, NULL);
317 java::lang::reflect::Field** fptr = elements (result);
318 for (int i = 0; i < field_count; i++)
320 _Jv_Field *field = &fields[i];
322 && ! (field->flags & java::lang::reflect::Modifier::PUBLIC))
324 java::lang::reflect::Field* rfield = new java::lang::reflect::Field ();
325 rfield->offset = (char*) field - (char*) fields;
326 rfield->declaringClass = this;
333 java::lang::Class::getSignature (java::lang::StringBuffer *buffer)
336 buffer->append((jchar) method_count);
339 jstring name = getName();
340 if (name->charAt(0) != '[')
341 buffer->append((jchar) 'L');
342 buffer->append(name);
343 if (name->charAt(0) != '[')
344 buffer->append((jchar) ';');
348 // This doesn't have to be native. It is an implementation detail
349 // only called from the C++ code, though, so maybe this is clearer.
351 java::lang::Class::getSignature (JArray<jclass> *param_types,
352 jboolean is_constructor)
354 java::lang::StringBuffer *buf = new java::lang::StringBuffer ();
355 buf->append((jchar) '(');
356 // A NULL param_types means "no parameters".
357 if (param_types != NULL)
359 jclass *v = elements (param_types);
360 for (int i = 0; i < param_types->length; ++i)
361 v[i]->getSignature(buf);
363 buf->append((jchar) ')');
365 buf->append((jchar) 'V');
366 return buf->toString();
369 java::lang::reflect::Method *
370 java::lang::Class::_getDeclaredMethod (jstring name,
371 JArray<jclass> *param_types)
373 jstring partial_sig = getSignature (param_types, false);
374 jint p_len = partial_sig->length();
375 _Jv_Utf8Const *utf_name = _Jv_makeUtf8Const (name);
376 int i = isPrimitive () ? 0 : method_count;
379 if (_Jv_equalUtf8Consts (methods[i].name, utf_name)
380 && _Jv_equaln (methods[i].signature, partial_sig, p_len)
381 && (methods[i].accflags
382 & java::lang::reflect::Modifier::INVISIBLE) == 0)
385 using namespace java::lang::reflect;
386 Method *rmethod = new Method ();
387 rmethod->offset = (char*) (&methods[i]) - (char*) methods;
388 rmethod->declaringClass = this;
395 JArray<java::lang::reflect::Method *> *
396 java::lang::Class::getDeclaredMethods (void)
398 memberAccessCheck(java::lang::reflect::Member::DECLARED);
401 int max = isPrimitive () ? 0 : method_count;
403 for (i = max; --i >= 0; )
405 _Jv_Method *method = &methods[i];
406 if (method->name == NULL
407 || _Jv_equalUtf8Consts (method->name, clinit_name)
408 || _Jv_equalUtf8Consts (method->name, init_name)
409 || _Jv_equalUtf8Consts (method->name, finit_name)
410 || (methods[i].accflags
411 & java::lang::reflect::Modifier::INVISIBLE) != 0)
415 JArray<java::lang::reflect::Method *> *result
416 = (JArray<java::lang::reflect::Method *> *)
417 JvNewObjectArray (numMethods, &java::lang::reflect::Method::class$, NULL);
418 java::lang::reflect::Method** mptr = elements (result);
419 for (i = 0; i < max; i++)
421 _Jv_Method *method = &methods[i];
422 if (method->name == NULL
423 || _Jv_equalUtf8Consts (method->name, clinit_name)
424 || _Jv_equalUtf8Consts (method->name, init_name)
425 || _Jv_equalUtf8Consts (method->name, finit_name)
426 || (methods[i].accflags
427 & java::lang::reflect::Modifier::INVISIBLE) != 0)
429 java::lang::reflect::Method* rmethod
430 = new java::lang::reflect::Method ();
431 rmethod->offset = (char*) method - (char*) methods;
432 rmethod->declaringClass = this;
439 java::lang::Class::getName (void)
441 return name->toString();
445 java::lang::Class::getInterfaces (void)
447 jobjectArray r = JvNewObjectArray (interface_count, getClass (), NULL);
448 jobject *data = elements (r);
449 for (int i = 0; i < interface_count; ++i)
451 typedef unsigned int uaddr __attribute__ ((mode (pointer)));
452 data[i] = interfaces[i];
453 if ((uaddr)data[i] < (uaddr)constants.size)
454 fprintf (stderr, "ERROR !!!\n");
456 return reinterpret_cast<JArray<jclass> *> (r);
459 java::lang::reflect::Method *
460 java::lang::Class::_getMethod (jstring name, JArray<jclass> *param_types)
462 jstring partial_sig = getSignature (param_types, false);
463 jint p_len = partial_sig->length();
464 _Jv_Utf8Const *utf_name = _Jv_makeUtf8Const (name);
466 for (Class *klass = this; klass; klass = klass->getSuperclass())
468 int i = klass->isPrimitive () ? 0 : klass->method_count;
471 if (_Jv_equalUtf8Consts (klass->methods[i].name, utf_name)
472 && _Jv_equaln (klass->methods[i].signature, partial_sig, p_len)
473 && (klass->methods[i].accflags
474 & java::lang::reflect::Modifier::INVISIBLE) == 0)
477 using namespace java::lang::reflect;
479 // Method must be public.
480 if (! Modifier::isPublic (klass->methods[i].accflags))
483 Method *rmethod = new Method ();
484 rmethod->offset = ((char *) (&klass->methods[i])
485 - (char *) klass->methods);
486 rmethod->declaringClass = klass;
492 // If we haven't found a match, and this class is an interface, then
493 // check all the superinterfaces.
496 for (int i = 0; i < interface_count; ++i)
498 using namespace java::lang::reflect;
499 Method *rmethod = interfaces[i]->_getMethod (name, param_types);
508 // This is a very slow implementation, since it re-scans all the
509 // methods we've already listed to make sure we haven't duplicated a
510 // method. It also over-estimates the required size, so we have to
511 // shrink the result array later.
513 java::lang::Class::_getMethods (JArray<java::lang::reflect::Method *> *result,
518 // First examine all local methods
519 for (int i = isPrimitive () ? 0 : method_count; --i >= 0; )
521 _Jv_Method *method = &methods[i];
522 if (method->name == NULL
523 || _Jv_equalUtf8Consts (method->name, clinit_name)
524 || _Jv_equalUtf8Consts (method->name, init_name)
525 || _Jv_equalUtf8Consts (method->name, finit_name)
527 & java::lang::reflect::Modifier::INVISIBLE) != 0)
529 // Only want public methods.
530 if (! java::lang::reflect::Modifier::isPublic (method->accflags))
533 // This is where we over-count the slots required if we aren't
534 // filling the result for real.
538 java::lang::reflect::Method **mp = elements (result);
539 // If we already have a method with this name and signature,
540 // then ignore this one. This can happen with virtual
542 for (int j = 0; j < offset; ++j)
544 _Jv_Method *meth_2 = _Jv_FromReflectedMethod (mp[j]);
545 if (_Jv_equalUtf8Consts (method->name, meth_2->name)
546 && _Jv_equalUtf8Consts (method->signature,
559 using namespace java::lang::reflect;
560 Method *rmethod = new Method ();
561 rmethod->offset = (char *) method - (char *) methods;
562 rmethod->declaringClass = this;
563 Method **mp = elements (result);
564 mp[offset + count] = rmethod;
570 // Now examine superclasses.
571 if (getSuperclass () != NULL)
573 jint s_count = getSuperclass()->_getMethods (result, offset);
578 // Finally, examine interfaces.
579 for (int i = 0; i < interface_count; ++i)
581 int f_count = interfaces[i]->_getMethods (result, offset);
589 JArray<java::lang::reflect::Method *> *
590 java::lang::Class::getMethods (void)
592 using namespace java::lang::reflect;
594 memberAccessCheck(Member::PUBLIC);
596 // This will overestimate the size we need.
597 jint count = _getMethods (NULL, 0);
599 JArray<Method *> *result
600 = ((JArray<Method *> *) JvNewObjectArray (count,
604 // When filling the array for real, we get the actual count. Then
605 // we resize the array.
606 jint real_count = _getMethods (result, 0);
608 if (real_count != count)
611 = ((JArray<Method *> *) JvNewObjectArray (real_count,
615 Method **destp = elements (r2);
616 Method **srcp = elements (result);
618 for (int i = 0; i < real_count; ++i)
628 java::lang::Class::isAssignableFrom (jclass klass)
630 // Arguments may not have been initialized, given ".class" syntax.
631 // This ensures we can at least look at their superclasses.
632 _Jv_Linker::wait_for_state (this, JV_STATE_LOADING);
633 _Jv_Linker::wait_for_state (klass, JV_STATE_LOADING);
634 return _Jv_IsAssignableFrom (klass, this);
638 java::lang::Class::isInstance (jobject obj)
642 return _Jv_IsAssignableFrom (JV_CLASS (obj), this);
646 java::lang::Class::newInstance (void)
648 memberAccessCheck(java::lang::reflect::Member::PUBLIC);
653 || java::lang::reflect::Modifier::isAbstract(accflags))
654 throw new java::lang::InstantiationException (getName ());
656 _Jv_InitClass (this);
658 _Jv_Method *meth = _Jv_GetMethodLocal (this, init_name, void_signature);
660 throw new java::lang::InstantiationException (getName());
662 jobject r = _Jv_AllocObject (this);
663 ((void (*) (jobject)) meth->ncode) (r);
668 java::lang::Class::finalize (void)
670 engine->unregister(this);
673 // This implements the initialization process for a class. From Spec
676 java::lang::Class::initializeClass (void)
678 // Short-circuit to avoid needless locking (expression includes
679 // JV_STATE_PHANTOM and JV_STATE_DONE).
680 if (state >= JV_STATE_PHANTOM)
683 // Step 1. We introduce a new scope so we can synchronize more
686 JvSynchronize sync (this);
688 if (state < JV_STATE_LINKED)
692 _Jv_Linker::wait_for_state(this, JV_STATE_LINKED);
694 catch (java::lang::SecurityException *x)
698 catch (java::lang::Throwable *x)
700 // Turn into a NoClassDefFoundError.
701 java::lang::NoClassDefFoundError *result
702 = new java::lang::NoClassDefFoundError(getName());
703 result->initCause(x);
709 java::lang::Thread *self = java::lang::Thread::currentThread();
710 self = (java::lang::Thread *) ((long) self | 1);
711 while (state == JV_STATE_IN_PROGRESS && thread && thread != self)
715 if (state == JV_STATE_DONE || state == JV_STATE_IN_PROGRESS)
719 if (state == JV_STATE_ERROR)
720 throw new java::lang::NoClassDefFoundError (getName());
724 _Jv_Linker::wait_for_state (this, JV_STATE_LINKED);
725 state = JV_STATE_IN_PROGRESS;
729 if (! isInterface () && superclass)
733 _Jv_InitClass (superclass);
735 catch (java::lang::SecurityException *x)
739 catch (java::lang::Throwable *except)
741 // Caught an exception.
742 JvSynchronize sync (this);
743 state = JV_STATE_ERROR;
749 // Steps 8, 9, 10, 11.
752 _Jv_Method *meth = _Jv_GetMethodLocal (this, clinit_name,
755 ((void (*) (void)) meth->ncode) ();
757 catch (java::lang::SecurityException *x)
761 catch (java::lang::Throwable *except)
763 if (! java::lang::Error::class$.isInstance(except))
767 except = new ExceptionInInitializerError (except);
769 catch (java::lang::Throwable *t)
775 JvSynchronize sync (this);
776 state = JV_STATE_ERROR;
781 JvSynchronize sync (this);
782 state = JV_STATE_DONE;
786 // Only used by serialization
787 java::lang::reflect::Field *
788 java::lang::Class::getPrivateField (jstring name)
790 int hash = name->hashCode ();
792 java::lang::reflect::Field* rfield;
793 for (int i = 0; i < field_count; i++)
795 _Jv_Field *field = &fields[i];
796 if (! _Jv_equal (field->name, name, hash))
798 rfield = new java::lang::reflect::Field ();
799 rfield->offset = (char*) field - (char*) fields;
800 rfield->declaringClass = this;
804 jclass superclass = getSuperclass();
805 if (superclass == NULL)
807 rfield = superclass->getPrivateField(name);
808 for (int i = 0; i < interface_count && rfield == NULL; ++i)
809 rfield = interfaces[i]->getPrivateField (name);
813 // Only used by serialization
814 java::lang::reflect::Method *
815 java::lang::Class::getPrivateMethod (jstring name, JArray<jclass> *param_types)
817 jstring partial_sig = getSignature (param_types, false);
818 jint p_len = partial_sig->length();
819 _Jv_Utf8Const *utf_name = _Jv_makeUtf8Const (name);
820 for (Class *klass = this; klass; klass = klass->getSuperclass())
822 int i = klass->isPrimitive () ? 0 : klass->method_count;
825 if (_Jv_equalUtf8Consts (klass->methods[i].name, utf_name)
826 && _Jv_equaln (klass->methods[i].signature, partial_sig, p_len))
829 using namespace java::lang::reflect;
831 Method *rmethod = new Method ();
832 rmethod->offset = ((char *) (&klass->methods[i])
833 - (char *) klass->methods);
834 rmethod->declaringClass = klass;
839 throw new java::lang::NoSuchMethodException (name);
842 // Private accessor method for Java code to retrieve the protection domain.
843 java::security::ProtectionDomain *
844 java::lang::Class::getProtectionDomain0 ()
846 return protectionDomain;
850 java::lang::Class::getSigners()
856 java::lang::Class::setSigners(JArray<jobject> *s)
864 read_u1 (unsigned char *&p)
870 read_u1 (unsigned char *&p, unsigned char *next)
873 throw new java::lang::InternalError();
878 read_u2 (unsigned char *&p)
880 unsigned int b1 = *p++;
881 unsigned int b2 = *p++;
882 return (b1 << 8) | b2;
886 read_u2 (unsigned char *&p, unsigned char *next)
889 throw new java::lang::InternalError();
894 read_4 (unsigned char *&p)
900 return (b1 << 24) | (b2 << 16) | (b3 << 8) | b4;
904 java::lang::Class::getReflectionSignature (jint /*jv_attr_type*/ type,
907 // We just re-parse the bytecode for this data each time. If
908 // necessary we can cache results, but I suspect this is not
909 // performance sensitive.
910 unsigned char *bytes = reflection_data;
915 int kind = read_u1 (bytes);
916 if (kind == JV_DONE_ATTR)
918 int len = read_4 (bytes);
919 unsigned char *next = bytes + len;
925 if (type != JV_CLASS_ATTR)
927 unsigned short index = read_u2 (bytes, next);
928 if (index != obj_index)
934 int nt = read_u1 (bytes, next);
935 if (nt != JV_SIGNATURE_KIND)
940 unsigned int cpool_idx = read_u2 (bytes, next);
941 if (cpool_idx >= (unsigned int) constants.size
942 || constants.tags[cpool_idx] != JV_CONSTANT_Utf8)
944 // We just ignore errors for now. It isn't clear what is
945 // best to do here, as an encoding error here means a bug
946 // either in the compiler or in defineclass.cc.
949 return _Jv_NewStringUtf8Const (constants.data[cpool_idx].utf8);
954 java::lang::Class::getReflectionSignature (::java::lang::reflect::Constructor *c)
956 _Jv_Method *meth = _Jv_FromReflectedConstructor (c);
957 unsigned short meth_index = meth - methods;
958 return getReflectionSignature (JV_METHOD_ATTR, meth_index);
962 java::lang::Class::getReflectionSignature (::java::lang::reflect::Method *m)
964 _Jv_Method *meth = _Jv_FromReflectedMethod (m);
965 unsigned short meth_index = meth - methods;
966 return getReflectionSignature (JV_METHOD_ATTR, meth_index);
970 java::lang::Class::getReflectionSignature (::java::lang::reflect::Field *f)
972 _Jv_Field *fld = _Jv_FromReflectedField (f);
973 unsigned short fld_index = fld - fields;
974 return getReflectionSignature (JV_FIELD_ATTR, fld_index);
978 java::lang::Class::getClassSignature()
980 return getReflectionSignature (JV_CLASS_ATTR, 0);
984 java::lang::Class::getEnclosingMethodData()
986 unsigned char *bytes = reflection_data;
991 int kind = read_u1 (bytes);
992 if (kind == JV_DONE_ATTR)
994 int len = read_4 (bytes);
995 unsigned char *next = bytes + len;
996 if (kind != JV_CLASS_ATTR)
1001 int type = read_u1 (bytes, next);
1002 if (type != JV_ENCLOSING_METHOD_KIND)
1007 int class_index = read_u2 (bytes, next);
1008 int method_index = read_u2 (bytes, next);
1010 _Jv_storeIndexes (&result, class_index, method_index);
1016 java::lang::Class::getEnclosingClass()
1019 indexes.i = getEnclosingMethodData();
1022 _Jv_ushort class_index, method_index;
1023 _Jv_loadIndexes (&indexes, class_index, method_index);
1024 return _Jv_Linker::resolve_pool_entry (this, class_index).clazz;
1027 ::java::lang::reflect::Method *
1028 java::lang::Class::getEnclosingMethod()
1031 indexes.i = getEnclosingMethodData();
1034 _Jv_ushort class_index, method_index;
1035 _Jv_loadIndexes (&indexes, class_index, method_index);
1037 _Jv_Method *method = _Jv_Linker::resolve_method_entry (this, found_class,
1041 using namespace java::lang::reflect;
1042 Method *rmethod = new Method ();
1043 rmethod->offset = (char *) method - (char *) found_class->methods;
1044 rmethod->declaringClass = found_class;
1048 ::java::lang::reflect::Constructor *
1049 java::lang::Class::getEnclosingConstructor()
1052 indexes.i = getEnclosingMethodData();
1055 _Jv_ushort class_index, method_index;
1056 _Jv_loadIndexes (&indexes, class_index, method_index);
1058 _Jv_Method *method = _Jv_Linker::resolve_method_entry (this, found_class,
1062 using namespace java::lang::reflect;
1063 Constructor *cons = new Constructor ();
1064 cons->offset = (char *) method - (char *) found_class->methods;
1065 cons->declaringClass = this;
1070 check_constant (_Jv_Constants *pool, jint cpool_index, jint type)
1072 if (cpool_index <= 0 || cpool_index >= pool->size)
1073 throw new InternalError(JvNewStringLatin1("invalid constant pool index"));
1074 if ((pool->tags[cpool_index] &
1075 ~(JV_CONSTANT_ResolvedFlag|JV_CONSTANT_LazyFlag)) != type)
1077 ::java::lang::StringBuffer *sb = new ::java::lang::StringBuffer();
1078 sb->append(JvNewStringLatin1("expected pool constant "));
1080 sb->append(JvNewStringLatin1(" but got "));
1081 sb->append(jint (pool->tags[cpool_index]));
1082 throw new InternalError(sb->toString());
1086 // Forward declaration
1087 static ::java::lang::annotation::Annotation *
1088 parseAnnotation(jclass klass, _Jv_Constants *pool,
1089 unsigned char *&bytes, unsigned char *last);
1092 parseAnnotationElement(jclass klass, _Jv_Constants *pool,
1093 unsigned char *&bytes, unsigned char *last)
1095 int tag = read_u1 (bytes, last);
1101 int cindex = read_u2 (bytes, last);
1102 check_constant (pool, cindex, JV_CONSTANT_Integer);
1103 result = Byte::valueOf (pool->data[cindex].i);
1108 int cindex = read_u2 (bytes, last);
1109 check_constant (pool, cindex, JV_CONSTANT_Integer);
1110 result = Character::valueOf (pool->data[cindex].i);
1115 int cindex = read_u2 (bytes, last);
1116 check_constant (pool, cindex, JV_CONSTANT_Integer);
1117 result = Short::valueOf (pool->data[cindex].i);
1122 int cindex = read_u2 (bytes, last);
1123 check_constant (pool, cindex, JV_CONSTANT_Integer);
1124 result = Boolean::valueOf (jboolean (pool->data[cindex].i));
1129 int cindex = read_u2 (bytes, last);
1130 check_constant (pool, cindex, JV_CONSTANT_Integer);
1131 result = Integer::valueOf (pool->data[cindex].i);
1136 int cindex = read_u2 (bytes, last);
1137 check_constant (pool, cindex, JV_CONSTANT_Double);
1139 memcpy (&word, &pool->data[cindex], 2 * sizeof (_Jv_word));
1140 result = Double::valueOf (word.d);
1145 int cindex = read_u2 (bytes, last);
1146 check_constant (pool, cindex, JV_CONSTANT_Float);
1147 result = Float::valueOf (pool->data[cindex].f);
1152 int cindex = read_u2 (bytes, last);
1153 check_constant (pool, cindex, JV_CONSTANT_Long);
1155 memcpy (&word, &pool->data[cindex], 2 * sizeof (_Jv_word));
1156 result = Long::valueOf (word.l);
1161 int cindex = read_u2 (bytes, last);
1162 // Despite what the JVM spec says, compilers generate a Utf8
1163 // constant here, not a String.
1164 check_constant (pool, cindex, JV_CONSTANT_Utf8);
1165 result = pool->data[cindex].utf8->toString();
1170 int type_name_index = read_u2 (bytes, last);
1171 check_constant (pool, type_name_index, JV_CONSTANT_Utf8);
1172 int const_name_index = read_u2 (bytes, last);
1173 check_constant (pool, const_name_index, JV_CONSTANT_Utf8);
1175 _Jv_Utf8Const *u_name = pool->data[type_name_index].utf8;
1176 _Jv_Utf8Const *e_name = pool->data[const_name_index].utf8;
1178 // FIXME: throw correct exceptions at the correct times.
1179 jclass e_class = _Jv_FindClassFromSignature(u_name->chars(),
1180 klass->getClassLoaderInternal());
1181 result = ::java::lang::Enum::valueOf(e_class, e_name->toString());
1186 int cindex = read_u2 (bytes, last);
1187 check_constant (pool, cindex, JV_CONSTANT_Utf8);
1188 _Jv_Utf8Const *u_name = pool->data[cindex].utf8;
1190 = _Jv_FindClassFromSignatureNoException(u_name->chars(),
1191 klass->getClassLoaderInternal());
1192 // FIXME: not correct: we should lazily do this when trying to
1193 // read the element. This means that
1194 // AnnotationInvocationHandler needs to have a special case.
1196 // FIXME: original exception...
1197 throw new TypeNotPresentException(u_name->toString(), NULL);
1198 result = anno_class;
1202 result = parseAnnotation (klass, pool, bytes, last);
1206 int n_array_elts = read_u2 (bytes, last);
1207 jobjectArray aresult = _Jv_NewObjectArray (n_array_elts,
1208 &Object::class$, NULL);
1209 jobject *elts = elements (aresult);
1210 for (int i = 0; i < n_array_elts; ++i)
1211 elts[i] = parseAnnotationElement(klass, pool, bytes, last);
1216 throw new java::lang::InternalError();
1221 static ::java::lang::annotation::Annotation *
1222 parseAnnotation(jclass klass, _Jv_Constants *pool,
1223 unsigned char *&bytes, unsigned char *last)
1225 int type_index = read_u2 (bytes, last);
1226 check_constant (pool, type_index, JV_CONSTANT_Utf8);
1228 _Jv_Utf8Const *u_name = pool->data[type_index].utf8;
1229 jclass anno_class = _Jv_FindClassFromSignatureNoException(u_name->chars(),
1230 klass->getClassLoaderInternal());
1231 // FIXME: what to do if anno_class==NULL?
1233 ::java::util::HashMap *hmap = new ::java::util::HashMap();
1234 int npairs = read_u2 (bytes, last);
1235 for (int i = 0; i < npairs; ++i)
1237 int name_index = read_u2 (bytes, last);
1238 check_constant (pool, name_index, JV_CONSTANT_Utf8);
1239 jstring name = _Jv_NewStringUtf8Const (pool->data[name_index].utf8);
1240 jobject value = parseAnnotationElement (klass, pool, bytes, last);
1241 // FIXME: any checks needed for name?
1242 hmap->put(name, value);
1244 using namespace ::sun::reflect::annotation;
1245 return AnnotationInvocationHandler::create (anno_class,
1246 (::java::util::Map *) hmap);
1250 parseAnnotations(jclass klass, _Jv_Constants *pool,
1251 unsigned char *&bytes, unsigned char *last)
1253 int num = read_u2 (bytes, last);
1254 jobjectArray result = _Jv_NewObjectArray (num,
1255 &::java::lang::annotation::Annotation::class$,
1257 jobject *elts = elements (result);
1258 for (int i = 0; i < num; ++i)
1259 elts[i] = parseAnnotation(klass, pool, bytes, last);
1264 parseParameterAnnotations(jclass klass, _Jv_Constants *pool,
1265 unsigned char *&bytes, unsigned char *last)
1267 jclass anno = &::java::lang::annotation::Annotation::class$;
1268 jclass annoary = _Jv_GetArrayClass (anno, anno->getClassLoaderInternal());
1270 // FIXME: something should check the number of params versus the
1272 int n_params = read_u1 (bytes, last);
1273 jobjectArray result = _Jv_NewObjectArray (n_params, annoary, NULL);
1274 jobject *elts = elements (result);
1275 for (int i = 0; i < n_params; ++i)
1276 elts[i] = parseAnnotations(klass, pool, bytes, last);
1281 java::lang::Class::getMethodDefaultValue(::java::lang::reflect::Method *meth)
1283 // FIXME: could cache the value here...
1285 unsigned char *bytes = reflection_data;
1289 unsigned short meth_index = _Jv_FromReflectedMethod (meth) - methods;
1293 int type = read_u1 (bytes);
1294 if (type == JV_DONE_ATTR)
1296 int len = read_4 (bytes);
1297 unsigned char *next = bytes + len;
1298 if (type != JV_METHOD_ATTR)
1303 int kind = read_u1 (bytes, next);
1304 if (kind != JV_ANNOTATION_DEFAULT_KIND)
1309 int index = read_u2 (bytes, next);
1310 if (meth_index != index)
1316 // FIXME: could cache here. If we do then we have to clone any
1318 return parseAnnotationElement(this, &this->constants, bytes, next);
1323 java::lang::Class::getDeclaredAnnotations(jint /* jv_attr_type */ member_type,
1325 jint /* jv_attr_kind */ kind_req)
1327 using namespace java::lang::annotation;
1328 jobjectArray result;
1330 unsigned char *bytes = reflection_data;
1335 loader = (ClassLoader *)VMClassLoader::bootLoader;
1337 result = (loader->getDeclaredAnnotations
1338 (this, member_type, member_index, kind_req));
1344 int type = read_u1 (bytes);
1345 if (type == JV_DONE_ATTR)
1347 int len = read_4 (bytes);
1348 unsigned char *next = bytes + len;
1349 if (type != member_type)
1354 int kind = read_u1 (bytes, next);
1355 if (kind != kind_req)
1360 if (member_type != JV_CLASS_ATTR)
1362 int index = read_u2 (bytes, next);
1363 if (member_index != index)
1370 if (kind_req == JV_PARAMETER_ANNOTATIONS_KIND)
1371 result = ((parseParameterAnnotations
1372 (this, &this->constants, bytes, next)));
1374 result = ((parseAnnotations (this, &this->constants, bytes, next)));
1378 return (loader->putDeclaredAnnotations
1379 (this, member_type, member_index, kind_req, result));
1383 java::lang::Class::getDeclaredAnnotations(::java::lang::reflect::Method *meth,
1386 unsigned short meth_index = _Jv_FromReflectedMethod (meth) - methods;
1387 return getDeclaredAnnotations(JV_METHOD_ATTR, meth_index,
1389 ? JV_PARAMETER_ANNOTATIONS_KIND
1390 : JV_ANNOTATIONS_KIND));
1394 java::lang::Class::getDeclaredAnnotations(::java::lang::reflect::Constructor *cons,
1397 unsigned short meth_index = _Jv_FromReflectedConstructor (cons) - methods;
1398 return getDeclaredAnnotations(JV_METHOD_ATTR, meth_index,
1400 ? JV_PARAMETER_ANNOTATIONS_KIND
1401 : JV_ANNOTATIONS_KIND));
1405 java::lang::Class::getDeclaredAnnotations(::java::lang::reflect::Field *fld)
1407 unsigned short field_index = _Jv_FromReflectedField (fld) - fields;
1408 return getDeclaredAnnotations(JV_FIELD_ATTR, field_index,
1409 JV_ANNOTATIONS_KIND);
1412 JArray< ::java::lang::annotation::Annotation *> *
1413 java::lang::Class::getDeclaredAnnotationsInternal()
1415 return (JArray< ::java::lang::annotation::Annotation *> *) getDeclaredAnnotations(JV_CLASS_ATTR, 0, JV_ANNOTATIONS_KIND);
1419 resolve_class_constant (jclass klass, _Jv_Constants *pool, int cpool_index)
1421 check_constant (pool, cpool_index, JV_CONSTANT_Class);
1422 // FIXME: what is the correct thing to do with an exception here?
1423 return _Jv_Linker::resolve_pool_entry (klass, cpool_index, false).clazz;
1427 java::lang::Class::findInnerClassAttribute()
1429 unsigned char *bytes = reflection_data;
1434 int type = read_u1 (bytes);
1435 if (type == JV_DONE_ATTR)
1437 // After the type but before the length.
1438 unsigned char *save = bytes;
1439 int len = read_4 (bytes);
1440 unsigned char *next = bytes + len;
1441 if (type != JV_CLASS_ATTR)
1446 int kind = read_u1 (bytes, next);
1447 if (kind != JV_INNER_CLASSES_KIND)
1452 return save - reflection_data;
1458 java::lang::Class::findDeclaredClasses(JArray<jclass> *result,
1459 jboolean publicOnly,
1462 unsigned char *bytes = reflection_data + offset;
1463 int len = read_4 (bytes);
1464 unsigned char *next = bytes + len;
1466 read_u1 (bytes, next);
1467 int n_classes = read_u2 (bytes, next);
1469 for (int i = 0; i < n_classes; ++i)
1471 int inner_class_index = read_u2 (bytes, next);
1472 int outer_class_index = read_u2 (bytes, next);
1473 /*int inner_name_index = */ read_u2 (bytes, next);
1474 int inner_flags = read_u2 (bytes, next);
1476 if (inner_class_index == 0 || outer_class_index == 0)
1478 if (resolve_class_constant (this, &constants, outer_class_index) == this)
1480 jclass inner = resolve_class_constant (this, &constants,
1484 & java::lang::reflect::Modifier::PUBLIC) != 0))
1488 jclass *elts = elements (result);
1489 elts[count] = inner;
1500 java::lang::Class::getDeclaredClasses (jboolean publicOnly)
1502 int offset = findInnerClassAttribute();
1506 // No InnerClasses attribute, so no declared classes.
1510 count = findDeclaredClasses(NULL, publicOnly, offset);
1511 JArray<jclass> *result
1512 = (JArray<jclass> *) JvNewObjectArray (count, &java::lang::Class::class$,
1515 findDeclaredClasses(result, publicOnly, offset);
1520 java::lang::Class::getDeclaringClass (void)
1522 int offset = findInnerClassAttribute();
1526 unsigned char *bytes = reflection_data + offset;
1527 int len = read_4 (bytes);
1528 unsigned char *next = bytes + len;
1530 read_u1 (bytes, next);
1531 int n_classes = read_u2 (bytes, next);
1532 for (int i = 0; i < n_classes; ++i)
1534 int inner_class_index = read_u2 (bytes, next);
1535 int outer_class_index = read_u2 (bytes, next);
1536 /*int inner_name_index = */read_u2 (bytes, next);
1537 /*int inner_flags = */read_u2 (bytes, next);
1539 if (inner_class_index == 0 || outer_class_index == 0)
1541 if (resolve_class_constant (this, &constants, inner_class_index) == this)
1542 return resolve_class_constant (this, &constants, outer_class_index);
1549 java::lang::Class::isAnonymousClass()
1551 int offset = findInnerClassAttribute();
1555 unsigned char *bytes = reflection_data + offset;
1556 int len = read_4 (bytes);
1557 unsigned char *next = bytes + len;
1559 read_u1 (bytes, next);
1560 int n_classes = read_u2 (bytes, next);
1561 for (int i = 0; i < n_classes; ++i)
1563 int inner_class_index = read_u2 (bytes, next);
1564 /*int outer_class_index = */read_u2 (bytes, next);
1565 int inner_name_index = read_u2 (bytes, next);
1566 /*int inner_flags = */read_u2 (bytes, next);
1568 if (inner_class_index == 0)
1570 if (resolve_class_constant (this, &constants, inner_class_index) == this)
1571 return inner_name_index == 0;
1578 java::lang::Class::isLocalClass()
1581 indexes.i = getEnclosingMethodData();
1582 return indexes.i != 0;
1586 java::lang::Class::isMemberClass()
1588 // FIXME: is this correct?
1589 return !isLocalClass() && getDeclaringClass() != NULL;
1595 // Some class-related convenience functions.
1598 // Find a method declared in the class. If it is not declared locally
1599 // (or if it is inherited), return NULL.
1601 _Jv_GetMethodLocal (jclass klass, _Jv_Utf8Const *name,
1602 _Jv_Utf8Const *signature)
1604 for (int i = 0; i < klass->method_count; ++i)
1606 if (_Jv_equalUtf8Consts (name, klass->methods[i].name)
1607 && _Jv_equalUtf8Consts (signature, klass->methods[i].signature))
1608 return &klass->methods[i];
1614 _Jv_LookupDeclaredMethod (jclass klass, _Jv_Utf8Const *name,
1615 _Jv_Utf8Const *signature,
1616 jclass *declarer_result)
1618 for (; klass; klass = klass->getSuperclass())
1620 _Jv_Method *meth = _Jv_GetMethodLocal (klass, name, signature);
1624 if (declarer_result)
1625 *declarer_result = klass;
1633 java::lang::reflect::Method *
1634 _Jv_GetReflectedMethod (jclass klass, _Jv_Utf8Const *name,
1635 _Jv_Utf8Const *signature)
1637 for (; klass; klass = klass->getSuperclass())
1639 _Jv_Method *meth = _Jv_GetMethodLocal (klass, name, signature);
1642 using namespace java::lang::reflect;
1643 Method *rmethod = new Method ();
1644 rmethod->offset = (char*) meth - (char*) klass->methods;
1645 rmethod->declaringClass = klass;
1655 // NOTE: MCACHE_SIZE should be a power of 2 minus one.
1656 #define MCACHE_SIZE 31
1664 static __thread _Jv_mcache *method_cache;
1668 _Jv_FindMethodInCache (jclass klass MAYBE_UNUSED,
1669 _Jv_Utf8Const *name MAYBE_UNUSED,
1670 _Jv_Utf8Const *signature MAYBE_UNUSED)
1673 _Jv_mcache *cache = method_cache;
1676 int index = name->hash16 () & MCACHE_SIZE;
1677 _Jv_mcache *mc = &cache[index];
1678 _Jv_Method *m = mc->method;
1680 if (mc->klass == klass
1681 && _Jv_equalUtf8Consts (m->name, name)
1682 && _Jv_equalUtf8Consts (m->signature, signature))
1683 return mc->method->ncode;
1690 _Jv_AddMethodToCache (jclass klass MAYBE_UNUSED,
1691 _Jv_Method *method MAYBE_UNUSED)
1694 if (method_cache == NULL)
1695 method_cache = (_Jv_mcache *) _Jv_MallocUnchecked((MCACHE_SIZE + 1)
1696 * sizeof (_Jv_mcache));
1697 // If the allocation failed, just keep going.
1698 if (method_cache != NULL)
1700 int index = method->name->hash16 () & MCACHE_SIZE;
1701 method_cache[index].method = method;
1702 method_cache[index].klass = klass;
1707 // Free this thread's method cache. We explicitly manage this memory
1708 // as the GC does not yet know how to scan TLS on all platforms.
1710 _Jv_FreeMethodCache ()
1713 if (method_cache != NULL)
1715 _Jv_Free(method_cache);
1716 method_cache = NULL;
1722 _Jv_LookupInterfaceMethod (jclass klass, _Jv_Utf8Const *name,
1723 _Jv_Utf8Const *signature)
1725 using namespace java::lang::reflect;
1727 void *ncode = _Jv_FindMethodInCache (klass, name, signature);
1731 for (; klass; klass = klass->getSuperclass())
1733 _Jv_Method *meth = _Jv_GetMethodLocal (klass, name, signature);
1737 if (Modifier::isStatic(meth->accflags))
1738 throw new java::lang::IncompatibleClassChangeError
1739 (_Jv_GetMethodString (klass, meth));
1740 if (Modifier::isAbstract(meth->accflags))
1741 throw new java::lang::AbstractMethodError
1742 (_Jv_GetMethodString (klass, meth));
1743 if (! Modifier::isPublic(meth->accflags))
1744 throw new java::lang::IllegalAccessError
1745 (_Jv_GetMethodString (klass, meth));
1747 _Jv_AddMethodToCache (klass, meth);
1751 throw new java::lang::IncompatibleClassChangeError;
1754 // Fast interface method lookup by index.
1756 _Jv_LookupInterfaceMethodIdx (jclass klass, jclass iface, int method_idx)
1758 _Jv_IDispatchTable *cldt = klass->idt;
1759 int idx = iface->ioffsets[cldt->iindex] + method_idx;
1760 return cldt->itable[idx];
1764 _Jv_IsAssignableFrom (jclass source, jclass target)
1766 if (source == target)
1769 // If target is array, so must source be.
1770 while (target->isArray ())
1772 if (! source->isArray())
1774 target = target->getComponentType();
1775 source = source->getComponentType();
1778 if (target->isInterface())
1780 // Abstract classes have no IDT, and IDTs provide no way to check
1781 // two interfaces for assignability.
1782 if (__builtin_expect
1783 (source->idt == NULL || source->isInterface(), false))
1784 return _Jv_InterfaceAssignableFrom (source, target);
1786 _Jv_IDispatchTable *cl_idt = source->idt;
1788 if (__builtin_expect ((target->ioffsets == NULL), false))
1789 return false; // No class implementing TARGET has been loaded.
1790 jshort cl_iindex = cl_idt->iindex;
1791 if (cl_iindex < target->ioffsets[0])
1793 jshort offset = target->ioffsets[cl_iindex];
1794 if (offset != -1 && offset < cl_idt->itable_length
1795 && cl_idt->itable[offset] == target)
1801 // Primitive TYPE classes are only assignable to themselves.
1802 if (__builtin_expect (target->isPrimitive() || source->isPrimitive(), false))
1805 if (target == &java::lang::Object::class$)
1807 else if (source->ancestors == NULL || target->ancestors == NULL)
1809 // We need this case when either SOURCE or TARGET has not has
1810 // its constant-time tables prepared.
1812 // At this point we know that TARGET can't be Object, so it is
1813 // safe to use that as the termination point.
1814 while (source && source != &java::lang::Object::class$)
1816 if (source == target)
1818 source = source->getSuperclass();
1821 else if (source->depth >= target->depth
1822 && source->ancestors[source->depth - target->depth] == target)
1828 // Interface type checking, the slow way. Returns TRUE if IFACE is a
1829 // superinterface of SOURCE. This is used when SOURCE is also an interface,
1830 // or a class with no interface dispatch table.
1832 _Jv_InterfaceAssignableFrom (jclass source, jclass iface)
1834 for (int i = 0; i < source->interface_count; i++)
1836 jclass interface = source->interfaces[i];
1837 if (iface == interface
1838 || _Jv_InterfaceAssignableFrom (interface, iface))
1842 if (!source->isInterface()
1843 && source->superclass
1844 && _Jv_InterfaceAssignableFrom (source->superclass, iface))
1851 _Jv_IsInstanceOf(jobject obj, jclass cl)
1853 if (__builtin_expect (!obj, false))
1855 return _Jv_IsAssignableFrom (JV_CLASS (obj), cl);
1859 _Jv_CheckCast (jclass c, jobject obj)
1861 if (__builtin_expect
1862 (obj != NULL && ! _Jv_IsAssignableFrom(JV_CLASS (obj), c), false))
1863 throw new java::lang::ClassCastException
1864 ((new java::lang::StringBuffer
1865 (obj->getClass()->getName()))->append
1866 (JvNewStringUTF(" cannot be cast to "))->append
1867 (c->getName())->toString());
1873 _Jv_CheckArrayStore (jobject arr, jobject obj)
1877 JvAssert (arr != NULL);
1878 jclass elt_class = (JV_CLASS (arr))->getComponentType();
1879 if (elt_class == &java::lang::Object::class$)
1881 jclass obj_class = JV_CLASS (obj);
1882 if (__builtin_expect
1883 (! _Jv_IsAssignableFrom (obj_class, elt_class), false))
1884 throw new java::lang::ArrayStoreException
1885 ((new java::lang::StringBuffer
1886 (JvNewStringUTF("Cannot store ")))->append
1887 (obj_class->getName())->append
1888 (JvNewStringUTF(" in array of type "))->append
1889 (elt_class->getName())->toString());
1894 _Jv_IsAssignableFromSlow (jclass source, jclass target)
1896 // First, strip arrays.
1897 while (target->isArray ())
1899 // If target is array, source must be as well.
1900 if (! source->isArray ())
1902 target = target->getComponentType ();
1903 source = source->getComponentType ();
1907 if (target == &java::lang::Object::class$)
1910 // Ensure that the classes have their supers installed.
1911 _Jv_Linker::wait_for_state (source, JV_STATE_LOADING);
1912 _Jv_Linker::wait_for_state (target, JV_STATE_LOADING);
1916 if (source == target)
1919 if (target->isPrimitive () || source->isPrimitive ())
1922 if (target->isInterface ())
1924 for (int i = 0; i < source->interface_count; ++i)
1926 // We use a recursive call because we also need to
1927 // check superinterfaces.
1928 if (_Jv_IsAssignableFromSlow (source->getInterface (i), target))
1932 source = source->getSuperclass ();
1934 while (source != NULL);
1939 // Lookup an interface method by name. This is very similar to
1940 // purpose to _getMethod, but the interfaces are quite different. It
1941 // might be a good idea for _getMethod to call this function.
1943 // Return true of the method is found, with the class in FOUND_CLASS
1944 // and the index in INDEX.
1946 _Jv_getInterfaceMethod (jclass search_class, jclass &found_class, int &index,
1947 const _Jv_Utf8Const *utf_name,
1948 const _Jv_Utf8Const *utf_sig)
1950 for (jclass klass = search_class; klass; klass = klass->getSuperclass())
1952 // FIXME: Throw an exception?
1953 if (!klass->isInterface ())
1956 int max = klass->method_count;
1958 for (int i = 0; i < max; ++i)
1960 // Skip <clinit> here, as it will not be in the IDT.
1961 if (klass->methods[i].name->first() == '<')
1964 if (_Jv_equalUtf8Consts (klass->methods[i].name, utf_name)
1965 && _Jv_equalUtf8Consts (klass->methods[i].signature, utf_sig))
1968 using namespace java::lang::reflect;
1970 // FIXME: Method must be public. Throw an exception?
1971 if (! Modifier::isPublic (klass->methods[i].accflags))
1974 found_class = klass;
1975 // Interface method indexes count from 1.
1984 // If we haven't found a match, and this class is an interface, then
1985 // check all the superinterfaces.
1986 if (search_class->isInterface())
1988 for (int i = 0; i < search_class->interface_count; ++i)
1990 using namespace java::lang::reflect;
1991 bool found = _Jv_getInterfaceMethod (search_class->interfaces[i],
2004 _Jv_FindInterpreterMethod (jclass klass, jmethodID desired_method)
2006 using namespace java::lang::reflect;
2008 _Jv_InterpClass *iclass
2009 = reinterpret_cast<_Jv_InterpClass *> (klass->aux_info);
2010 _Jv_MethodBase **imethods = _Jv_GetFirstMethod (iclass);
2012 for (int i = 0; i < JvNumMethods (klass); ++i)
2014 _Jv_MethodBase *imeth = imethods[i];
2015 if (imeth->get_method () == desired_method)
2023 // Return Utf8 name of a class. This function is here for code that
2024 // can't access klass->name directly.
2026 _Jv_GetClassNameUtf8 (jclass klass)
2032 _Jv_GetMethodDeclaringClass (jmethodID method)
2034 _Jv_StackTrace::UpdateNCodeMap ();
2035 jobject obj = reinterpret_cast<jobject> (method->ncode);
2036 return reinterpret_cast<jclass> (_Jv_StackTrace::ncodeMap->get (obj));
2040 _Jv_GetClassState (jclass klass)
2042 return klass->state;