1 // natField.cc - Implementation of java.lang.reflect.Field native methods.
3 /* Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2006 Free Software Foundation
5 This file is part of libgcj.
7 This software is copyrighted work licensed under the terms of the
8 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
16 #include <java-stack.h>
17 #include <java/lang/reflect/Field.h>
18 #include <java/lang/reflect/Modifier.h>
19 #include <java/lang/ArrayIndexOutOfBoundsException.h>
20 #include <java/lang/IllegalArgumentException.h>
21 #include <java/lang/IllegalAccessException.h>
22 #include <java/lang/NullPointerException.h>
23 #include <java/lang/Byte.h>
24 #include <java/lang/Short.h>
25 #include <java/lang/Integer.h>
26 #include <java/lang/Long.h>
27 #include <java/lang/Float.h>
28 #include <java/lang/Double.h>
29 #include <java/lang/Boolean.h>
30 #include <java/lang/Character.h>
32 typedef JArray< ::java::lang::annotation::Annotation * > * anno_a_t;
35 java::lang::reflect::Field::getModifiersInternal ()
37 return _Jv_FromReflectedField (this)->flags;
41 java::lang::reflect::Field::getSignature()
43 return declaringClass->getReflectionSignature (this);
47 java::lang::reflect::Field::getDeclaredAnnotationsInternal()
49 return (anno_a_t) declaringClass->getDeclaredAnnotations(this);
53 java::lang::reflect::Field::getName ()
56 name = _Jv_NewStringUtf8Const (_Jv_FromReflectedField (this)->name);
61 java::lang::reflect::Field::getType ()
65 jfieldID fld = _Jv_FromReflectedField (this);
66 JvSynchronize sync (declaringClass);
67 _Jv_Linker::resolve_field (fld, declaringClass->getClassLoaderInternal ());
74 getAddr (java::lang::reflect::Field* field, jclass caller, jobject obj,
77 // FIXME: we know CALLER is NULL here. At one point we planned to
78 // have the compiler insert the caller as a hidden argument in some
79 // calls. However, we never implemented that, so we have to find
80 // the caller by hand instead.
82 using namespace java::lang::reflect;
84 jfieldID fld = _Jv_FromReflectedField (field);
85 _Jv_ushort flags = fld->getModifiers();
87 // Setting a final field is usually not allowed.
89 // As of 1.5, you can set a non-static final field if it is
91 && (! field->isAccessible()
92 || (field->getModifiers() & java::lang::reflect::Modifier::STATIC))
93 && (field->getModifiers() & java::lang::reflect::Modifier::FINAL))
94 throw new java::lang::IllegalAccessException(JvNewStringUTF
97 // Check accessibility, if required.
98 if (! (Modifier::isPublic (flags) || field->isAccessible()))
100 caller = _Jv_StackTrace::GetCallingClass (&Field::class$);
101 if (! _Jv_CheckAccess (caller, field->getDeclaringClass(), flags))
102 throw new java::lang::IllegalAccessException;
105 if (flags & Modifier::STATIC)
107 jclass fldClass = field->getDeclaringClass ();
108 JvInitClass(fldClass);
114 throw new java::lang::NullPointerException;
115 if (! _Jv_IsInstanceOf (obj, field->getDeclaringClass()))
116 throw new java::lang::IllegalArgumentException;
117 return (void*) ((char*) obj + fld->getOffset ());
122 getBoolean (jclass cls, void* addr)
124 if (cls == JvPrimClass (boolean))
125 return * (jboolean *) addr;
126 throw new java::lang::IllegalArgumentException;
130 getChar (jclass cls, void* addr)
132 if (cls == JvPrimClass (char))
133 return * (jchar *) addr;
134 throw new java::lang::IllegalArgumentException;
138 getByte (jclass cls, void* addr)
140 if (cls == JvPrimClass (byte))
141 return * (jbyte *) addr;
142 throw new java::lang::IllegalArgumentException;
146 getShort (jclass cls, void* addr)
148 if (cls == JvPrimClass (short))
149 return * (jshort *) addr;
150 if (cls == JvPrimClass (byte))
151 return * (jbyte *) addr;
152 throw new java::lang::IllegalArgumentException;
156 getInt (jclass cls, void* addr)
158 if (cls == JvPrimClass (int))
159 return * (jint *) addr;
160 if (cls == JvPrimClass (short))
161 return * (jshort *) addr;
162 if (cls == JvPrimClass (char))
163 return * (jchar *) addr;
164 if (cls == JvPrimClass (byte))
165 return * (jbyte *) addr;
166 throw new java::lang::IllegalArgumentException;
170 getLong (jclass cls, void* addr)
172 if (cls == JvPrimClass (long))
173 return * (jlong *) addr;
174 return ::getInt(cls, addr);
178 getFloat (jclass cls, void* addr)
180 if (cls == JvPrimClass (float))
181 return * (jfloat *) addr;
182 if (cls == JvPrimClass (long))
183 return * (jlong *) addr;
184 return ::getInt(cls, addr);
188 getDouble (jclass cls, void* addr)
190 if (cls == JvPrimClass (double))
191 return * (jdouble *) addr;
192 if (cls == JvPrimClass (float))
193 return * (jfloat *) addr;
194 if (cls == JvPrimClass (long))
195 return * (jlong *) addr;
196 return ::getInt(cls, addr);
200 java::lang::reflect::Field::getBoolean (jclass caller, jobject obj)
202 return ::getBoolean (this->getType(), getAddr (this, caller, obj, false));
206 java::lang::reflect::Field::getChar (jclass caller, jobject obj)
208 return ::getChar (this->getType(), getAddr (this, caller, obj, false));
212 java::lang::reflect::Field::getByte (jclass caller, jobject obj)
214 return ::getByte (this->getType(), getAddr (this, caller, obj, false));
218 java::lang::reflect::Field::getShort (jclass caller, jobject obj)
220 return ::getShort (this->getType(), getAddr (this, caller, obj, false));
224 java::lang::reflect::Field::getInt (jclass caller, jobject obj)
226 return ::getInt (this->getType(), getAddr (this, caller, obj, false));
230 java::lang::reflect::Field::getLong (jclass caller, jobject obj)
232 return ::getLong (this->getType(), getAddr (this, caller, obj, false));
236 java::lang::reflect::Field::getFloat (jclass caller, jobject obj)
238 return ::getFloat (this->getType(), getAddr (this, caller, obj, false));
242 java::lang::reflect::Field::getDouble (jclass caller, jobject obj)
244 return ::getDouble (this->getType(), getAddr (this, caller, obj, false));
248 java::lang::reflect::Field::get (jclass caller, jobject obj)
250 jclass type = this->getType();
251 void* addr = getAddr (this, caller, obj, false);
252 if (! type->isPrimitive ())
253 return * (jobject*) addr;
254 if (type == JvPrimClass (double))
255 return new java::lang::Double (* (jdouble*) addr);
256 if (type == JvPrimClass (float))
257 return new java::lang::Float (* (jfloat*) addr);
258 if (type == JvPrimClass (long))
259 return new java::lang::Long (* (jlong*) addr);
260 if (type == JvPrimClass (int))
261 return new java::lang::Integer (* (jint*) addr);
262 if (type == JvPrimClass (short))
263 return new java::lang::Short (* (jshort*) addr);
264 if (type == JvPrimClass (byte))
265 return new java::lang::Byte (* (jbyte*) addr);
266 if (type == JvPrimClass (char))
267 return new java::lang::Character (* (jchar*) addr);
268 if (type == JvPrimClass (boolean))
270 _Jv_InitClass (&java::lang::Boolean::class$);
271 if (* (jboolean*) addr)
272 return java::lang::Boolean::TRUE;
274 return java::lang::Boolean::FALSE;
276 throw new java::lang::IllegalArgumentException;
280 setBoolean (jclass type, void *addr, jboolean value)
282 if (type == JvPrimClass (boolean))
283 * (jboolean *) addr = value;
285 throw new java::lang::IllegalArgumentException;
289 setChar (jclass type, void *addr, jchar value)
291 if (type == JvPrimClass (char))
292 * (jchar *) addr = value;
293 else if (type == JvPrimClass (int))
294 * (jint *) addr = value;
295 else if (type == JvPrimClass (long))
296 * (jlong *) addr = value;
297 else if (type == JvPrimClass (float))
298 * (jfloat *) addr = value;
299 else if (type == JvPrimClass (double))
300 * (jdouble *) addr = value;
302 throw new java::lang::IllegalArgumentException;
306 setByte (jclass type, void *addr, jbyte value)
308 if (type == JvPrimClass (byte))
309 * (jbyte *) addr = value;
310 else if (type == JvPrimClass (short))
311 * (jshort *) addr = value;
312 else if (type == JvPrimClass (int))
313 * (jint *) addr = value;
314 else if (type == JvPrimClass (long))
315 * (jlong *) addr = value;
316 else if (type == JvPrimClass (float))
317 * (jfloat *) addr = value;
318 else if (type == JvPrimClass (double))
319 * (jdouble *) addr = value;
321 throw new java::lang::IllegalArgumentException;
325 setShort (jclass type, void *addr, jshort value)
327 if (type == JvPrimClass (short))
328 * (jshort *) addr = value;
329 else if (type == JvPrimClass (int))
330 * (jint *) addr = value;
331 else if (type == JvPrimClass (long))
332 * (jlong *) addr = value;
333 else if (type == JvPrimClass (float))
334 * (jfloat *) addr = value;
335 else if (type == JvPrimClass (double))
336 * (jdouble *) addr = value;
338 throw new java::lang::IllegalArgumentException;
342 setInt (jclass type, void *addr, jint value)
344 if (type == JvPrimClass (int))
345 * (jint *) addr = value;
346 else if (type == JvPrimClass (long))
347 * (jlong *) addr = value;
348 else if (type == JvPrimClass (float))
349 * (jfloat *) addr = value;
350 else if (type == JvPrimClass (double))
351 * (jdouble *) addr = value;
353 throw new java::lang::IllegalArgumentException;
357 setLong (jclass type, void *addr, jlong value)
359 if (type == JvPrimClass (long))
360 * (jlong *) addr = value;
361 else if (type == JvPrimClass (float))
362 * (jfloat *) addr = value;
363 else if (type == JvPrimClass (double))
364 * (jdouble *) addr = value;
366 throw new java::lang::IllegalArgumentException;
370 setFloat (jclass type, void *addr, jfloat value)
372 if (type == JvPrimClass (float))
373 * (jfloat *) addr = value;
374 else if (type == JvPrimClass (double))
375 * (jdouble *) addr = value;
377 throw new java::lang::IllegalArgumentException;
381 setDouble (jclass type, void *addr, jdouble value)
383 if (type == JvPrimClass (double))
384 * (jdouble *) addr = value;
386 throw new java::lang::IllegalArgumentException;
390 java::lang::reflect::Field::setBoolean (jclass caller, jobject obj, jboolean b,
393 ::setBoolean (this->getType(), getAddr (this, caller, obj, checkFinal), b);
397 java::lang::reflect::Field::setChar (jclass caller, jobject obj, jchar c,
400 ::setChar (this->getType(), getAddr (this, caller, obj, checkFinal), c);
404 java::lang::reflect::Field::setByte (jclass caller, jobject obj, jbyte b,
407 ::setByte (this->getType(), getAddr (this, caller, obj, checkFinal), b);
411 java::lang::reflect::Field::setShort (jclass caller, jobject obj, jshort s,
414 ::setShort (this->getType(), getAddr (this, caller, obj, checkFinal), s);
418 java::lang::reflect::Field::setInt (jclass caller, jobject obj, jint i,
421 ::setInt (this->getType(), getAddr (this, caller, obj, checkFinal), i);
425 java::lang::reflect::Field::setLong (jclass caller, jobject obj, jlong l,
428 ::setLong (this->getType(), getAddr (this, caller, obj, checkFinal), l);
432 java::lang::reflect::Field::setFloat (jclass caller, jobject obj, jfloat f,
435 ::setFloat (this->getType(), getAddr (this, caller, obj, checkFinal), f);
439 java::lang::reflect::Field::setDouble (jclass caller, jobject obj, jdouble d,
442 ::setDouble (this->getType(), getAddr (this, caller, obj, checkFinal), d);
446 java::lang::reflect::Field::set (jclass caller, jobject object, jobject value,
447 jclass type, jboolean checkFinal)
449 void* addr = getAddr (this, caller, object, checkFinal);
450 if (value != NULL && ! _Jv_IsInstanceOf (value, type))
451 throw new java::lang::IllegalArgumentException;
452 * (jobject*) addr = value;