0196f4e0a5
Fix for PR libgcj/11779: * java/lang/reflect/natField.cc (getAddr): Skip frames in Field class. From-SVN: r70185
431 lines
11 KiB
C++
431 lines
11 KiB
C++
// natField.cc - Implementation of java.lang.reflect.Field native methods.
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/* Copyright (C) 1998, 1999, 2000, 2001, 2003 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 <stdlib.h>
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#include <jvm.h>
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#include <java/lang/reflect/Field.h>
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#include <java/lang/reflect/Modifier.h>
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#include <java/lang/ArrayIndexOutOfBoundsException.h>
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#include <java/lang/IllegalArgumentException.h>
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#include <java/lang/IllegalAccessException.h>
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#include <java/lang/NullPointerException.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/Long.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/Boolean.h>
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#include <java/lang/Character.h>
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jint
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java::lang::reflect::Field::getModifiers ()
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{
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return _Jv_FromReflectedField (this)->getModifiers ();
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}
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jstring
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java::lang::reflect::Field::getName ()
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{
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if (name == NULL)
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name = _Jv_NewStringUtf8Const (_Jv_FromReflectedField (this)->name);
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return name;
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}
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jclass
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java::lang::reflect::Field::getType ()
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{
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jfieldID fld = _Jv_FromReflectedField (this);
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JvSynchronize sync (declaringClass);
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_Jv_ResolveField (fld, declaringClass->getClassLoaderInternal ());
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return fld->type;
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}
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static void*
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getAddr (java::lang::reflect::Field* field, jclass caller, jobject obj)
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{
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// FIXME: we know CALLER is NULL here. At one point we planned to
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// have the compiler insert the caller as a hidden argument in some
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// calls. However, we never implemented that, so we have to find
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// the caller by hand instead.
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gnu::gcj::runtime::StackTrace *t
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= new gnu::gcj::runtime::StackTrace(7);
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try
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{
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// We want to skip all the frames on the stack from this class.
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for (int i = 1;
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!caller || caller == &java::lang::reflect::Field::class$;
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i++)
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caller = t->classAt (i);
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}
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catch (::java::lang::ArrayIndexOutOfBoundsException *e)
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{
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}
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jfieldID fld = _Jv_FromReflectedField (field);
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_Jv_ushort flags = fld->getModifiers();
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if (! field->isAccessible ()
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&& ! _Jv_CheckAccess (caller, field->getDeclaringClass(), flags))
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throw new java::lang::IllegalAccessException;
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if (flags & java::lang::reflect::Modifier::STATIC)
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{
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jclass fldClass = field->getDeclaringClass ();
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JvInitClass(fldClass);
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return fld->u.addr;
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}
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else
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{
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if (obj == NULL)
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throw new java::lang::NullPointerException;
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if (! _Jv_IsInstanceOf (obj, field->getDeclaringClass()))
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throw new java::lang::IllegalArgumentException;
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return (void*) ((char*) obj + fld->getOffset ());
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}
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}
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static jboolean
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getBoolean (jclass cls, void* addr)
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{
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if (cls == JvPrimClass (boolean))
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return * (jboolean *) addr;
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throw new java::lang::IllegalArgumentException;
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}
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static jchar
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getChar (jclass cls, void* addr)
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{
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if (cls == JvPrimClass (char))
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return * (jchar *) addr;
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throw new java::lang::IllegalArgumentException;
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}
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static jbyte
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getByte (jclass cls, void* addr)
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{
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if (cls == JvPrimClass (byte))
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return * (jbyte *) addr;
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throw new java::lang::IllegalArgumentException;
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}
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static jshort
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getShort (jclass cls, void* addr)
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{
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if (cls == JvPrimClass (short))
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return * (jshort *) addr;
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if (cls == JvPrimClass (byte))
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return * (jbyte *) addr;
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throw new java::lang::IllegalArgumentException;
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}
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static jint
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getInt (jclass cls, void* addr)
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{
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if (cls == JvPrimClass (int))
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return * (jint *) addr;
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if (cls == JvPrimClass (short))
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return * (jshort *) addr;
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if (cls == JvPrimClass (char))
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return * (jchar *) addr;
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if (cls == JvPrimClass (byte))
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return * (jbyte *) addr;
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throw new java::lang::IllegalArgumentException;
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}
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static jlong
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getLong (jclass cls, void* addr)
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{
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if (cls == JvPrimClass (long))
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return * (jlong *) addr;
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return ::getInt(cls, addr);
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}
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static jfloat
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getFloat (jclass cls, void* addr)
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{
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if (cls == JvPrimClass (float))
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return * (jfloat *) addr;
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if (cls == JvPrimClass (long))
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return * (jlong *) addr;
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return ::getInt(cls, addr);
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}
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static jdouble
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getDouble (jclass cls, void* addr)
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{
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if (cls == JvPrimClass (double))
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return * (jdouble *) addr;
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if (cls == JvPrimClass (float))
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return * (jfloat *) addr;
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if (cls == JvPrimClass (long))
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return * (jlong *) addr;
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return ::getInt(cls, addr);
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}
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jboolean
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java::lang::reflect::Field::getBoolean (jclass caller, jobject obj)
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{
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return ::getBoolean (this->getType(), getAddr (this, caller, obj));
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}
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jchar
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java::lang::reflect::Field::getChar (jclass caller, jobject obj)
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{
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return ::getChar (this->getType(), getAddr (this, caller, obj));
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}
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jbyte
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java::lang::reflect::Field::getByte (jclass caller, jobject obj)
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{
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return ::getByte (this->getType(), getAddr (this, caller, obj));
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}
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jshort
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java::lang::reflect::Field::getShort (jclass caller, jobject obj)
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{
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return ::getShort (this->getType(), getAddr (this, caller, obj));
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}
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jint
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java::lang::reflect::Field::getInt (jclass caller, jobject obj)
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{
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return ::getInt (this->getType(), getAddr (this, caller, obj));
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}
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jlong
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java::lang::reflect::Field::getLong (jclass caller, jobject obj)
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{
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return ::getLong (this->getType(), getAddr (this, caller, obj));
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}
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jfloat
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java::lang::reflect::Field::getFloat (jclass caller, jobject obj)
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{
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return ::getFloat (this->getType(), getAddr (this, caller, obj));
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}
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jdouble
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java::lang::reflect::Field::getDouble (jclass caller, jobject obj)
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{
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return ::getDouble (this->getType(), getAddr (this, caller, obj));
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}
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jobject
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java::lang::reflect::Field::get (jclass caller, jobject obj)
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{
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jclass type = this->getType();
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void* addr = getAddr (this, caller, obj);
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if (! type->isPrimitive ())
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return * (jobject*) addr;
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if (type == JvPrimClass (double))
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return new java::lang::Double (* (jdouble*) addr);
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if (type == JvPrimClass (float))
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return new java::lang::Float (* (jfloat*) addr);
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if (type == JvPrimClass (long))
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return new java::lang::Long (* (jlong*) addr);
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if (type == JvPrimClass (int))
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return new java::lang::Integer (* (jint*) addr);
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if (type == JvPrimClass (short))
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return new java::lang::Short (* (jshort*) addr);
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if (type == JvPrimClass (byte))
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return new java::lang::Byte (* (jbyte*) addr);
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if (type == JvPrimClass (char))
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return new java::lang::Character (* (jchar*) addr);
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if (type == JvPrimClass (boolean))
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{
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_Jv_InitClass (&java::lang::Boolean::class$);
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if (* (jboolean*) addr)
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return java::lang::Boolean::TRUE;
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else
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return java::lang::Boolean::FALSE;
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}
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throw new java::lang::IllegalArgumentException;
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}
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static void*
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setAddr (java::lang::reflect::Field* field, jclass caller, jobject obj)
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{
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void *addr = getAddr(field, caller, obj);
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if (!field->isAccessible()
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&& field->getModifiers() & java::lang::reflect::Modifier::FINAL)
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throw new java::lang::IllegalAccessException();
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return addr;
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}
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static void
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setBoolean (jclass type, void *addr, jboolean value)
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{
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if (type == JvPrimClass (boolean))
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* (jboolean *) addr = value;
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else
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throw new java::lang::IllegalArgumentException;
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}
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static void
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setChar (jclass type, void *addr, jchar value)
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{
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if (type == JvPrimClass (char))
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* (jchar *) addr = value;
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else if (type == JvPrimClass (int))
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* (jint *) addr = value;
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else if (type == JvPrimClass (long))
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* (jlong *) addr = value;
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else if (type == JvPrimClass (float))
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* (jfloat *) addr = value;
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else if (type == JvPrimClass (double))
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* (jdouble *) addr = value;
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else
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throw new java::lang::IllegalArgumentException;
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}
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static void
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setByte (jclass type, void *addr, jbyte value)
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{
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if (type == JvPrimClass (byte))
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* (jbyte *) addr = value;
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else if (type == JvPrimClass (short))
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* (jshort *) addr = value;
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else if (type == JvPrimClass (int))
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* (jint *) addr = value;
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else if (type == JvPrimClass (long))
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* (jlong *) addr = value;
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else if (type == JvPrimClass (float))
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* (jfloat *) addr = value;
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else if (type == JvPrimClass (double))
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* (jdouble *) addr = value;
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else
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throw new java::lang::IllegalArgumentException;
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}
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static void
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setShort (jclass type, void *addr, jshort value)
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{
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if (type == JvPrimClass (short))
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* (jshort *) addr = value;
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else if (type == JvPrimClass (int))
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* (jint *) addr = value;
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else if (type == JvPrimClass (long))
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* (jlong *) addr = value;
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else if (type == JvPrimClass (float))
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* (jfloat *) addr = value;
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else if (type == JvPrimClass (double))
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* (jdouble *) addr = value;
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else
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throw new java::lang::IllegalArgumentException;
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}
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static void
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setInt (jclass type, void *addr, jint value)
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{
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if (type == JvPrimClass (int))
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* (jint *) addr = value;
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else if (type == JvPrimClass (long))
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* (jlong *) addr = value;
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else if (type == JvPrimClass (float))
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* (jfloat *) addr = value;
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else if (type == JvPrimClass (double))
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* (jdouble *) addr = value;
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else
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throw new java::lang::IllegalArgumentException;
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}
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static void
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setLong (jclass type, void *addr, jlong value)
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{
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if (type == JvPrimClass (long))
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* (jlong *) addr = value;
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else if (type == JvPrimClass (float))
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* (jfloat *) addr = value;
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else if (type == JvPrimClass (double))
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* (jdouble *) addr = value;
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else
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throw new java::lang::IllegalArgumentException;
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}
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static void
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setFloat (jclass type, void *addr, jfloat value)
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{
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if (type == JvPrimClass (float))
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* (jfloat *) addr = value;
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else if (type == JvPrimClass (double))
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* (jdouble *) addr = value;
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else
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throw new java::lang::IllegalArgumentException;
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}
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static void
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setDouble (jclass type, void *addr, jdouble value)
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{
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if (type == JvPrimClass (double))
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* (jdouble *) addr = value;
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else
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throw new java::lang::IllegalArgumentException;
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}
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void
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java::lang::reflect::Field::setBoolean (jclass caller, jobject obj, jboolean b)
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{
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::setBoolean (this->getType(), setAddr (this, caller, obj), b);
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}
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void
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java::lang::reflect::Field::setChar (jclass caller, jobject obj, jchar c)
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{
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::setChar (this->getType(), setAddr (this, caller, obj), c);
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}
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void
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java::lang::reflect::Field::setByte (jclass caller, jobject obj, jbyte b)
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{
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::setByte (this->getType(), setAddr (this, caller, obj), b);
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}
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void
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java::lang::reflect::Field::setShort (jclass caller, jobject obj, jshort s)
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{
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::setShort (this->getType(), setAddr (this, caller, obj), s);
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}
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void
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java::lang::reflect::Field::setInt (jclass caller, jobject obj, jint i)
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{
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::setInt (this->getType(), setAddr (this, caller, obj), i);
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}
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void
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java::lang::reflect::Field::setLong (jclass caller, jobject obj, jlong l)
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{
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::setLong (this->getType(), setAddr (this, caller, obj), l);
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}
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void
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java::lang::reflect::Field::setFloat (jclass caller, jobject obj, jfloat f)
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{
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::setFloat (this->getType(), setAddr (this, caller, obj), f);
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}
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void
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java::lang::reflect::Field::setDouble (jclass caller, jobject obj, jdouble d)
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{
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::setDouble (this->getType(), setAddr (this, caller, obj), d);
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}
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void
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java::lang::reflect::Field::set (jclass caller, jobject object, jobject value,
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jclass type)
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{
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void* addr = setAddr (this, caller, object);
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if (value != NULL && ! _Jv_IsInstanceOf (value, type))
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throw new java::lang::IllegalArgumentException;
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* (jobject*) addr = value;
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}
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