436 lines
11 KiB
C++
436 lines
11 KiB
C++
// natField.cc - Implementation of java.lang.reflect.Field native methods.
|
|
|
|
/* Copyright (C) 1998, 1999 Cygnus Solutions
|
|
|
|
This file is part of libgcj.
|
|
|
|
This software is copyrighted work licensed under the terms of the
|
|
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
|
|
details. */
|
|
|
|
#include <config.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <cni.h>
|
|
#include <jvm.h>
|
|
#include <java/lang/reflect/Field.h>
|
|
#include <java/lang/reflect/Modifier.h>
|
|
#include <java/lang/IllegalArgumentException.h>
|
|
#include <java/lang/NullPointerException.h>
|
|
#include <java/lang/Byte.h>
|
|
#include <java/lang/Short.h>
|
|
#include <java/lang/Integer.h>
|
|
#include <java/lang/Long.h>
|
|
#include <java/lang/Float.h>
|
|
#include <java/lang/Double.h>
|
|
#include <java/lang/Boolean.h>
|
|
#include <java/lang/Character.h>
|
|
#include <java-field.h>
|
|
|
|
jint
|
|
java::lang::reflect::Field::getModifiers ()
|
|
{
|
|
return _Jv_FromReflectedField (this)->getModifiers ();
|
|
}
|
|
|
|
jstring
|
|
java::lang::reflect::Field::getName ()
|
|
{
|
|
if (name == NULL)
|
|
name = _Jv_NewStringUtf8Const (_Jv_FromReflectedField (this)->name);
|
|
return name;
|
|
}
|
|
|
|
jclass
|
|
java::lang::reflect::Field::getType ()
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
if (! fld->isResolved())
|
|
{
|
|
JvSynchronize sync (declaringClass);
|
|
if (! fld->isResolved())
|
|
{
|
|
fld->type
|
|
= _Jv_FindClassFromSignature(((Utf8Const*) (fld->type))->data,
|
|
declaringClass->getClassLoader());
|
|
fld->flags &= ~_Jv_FIELD_UNRESOLVED_FLAG;
|
|
}
|
|
}
|
|
return fld->type;
|
|
}
|
|
|
|
static void
|
|
_Jv_CheckFieldAccessibility (jfieldID /*fld*/, jclass /*caller*/)
|
|
{
|
|
#if 0
|
|
if (caller == NULL)
|
|
caller = getCaller();
|
|
#endif
|
|
#if 0
|
|
_Jv_ushort flags = fld->getModifiers();
|
|
check accesss;
|
|
#endif
|
|
}
|
|
|
|
static void*
|
|
getAddr (java::lang::reflect::Field* field, jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (field);
|
|
_Jv_ushort flags = fld->getModifiers();
|
|
if (! (flags & java::lang::reflect::Modifier::PUBLIC)
|
|
&& ! field->isAccessible ())
|
|
_Jv_CheckFieldAccessibility (fld, caller);
|
|
if (flags & java::lang::reflect::Modifier::STATIC)
|
|
{
|
|
jclass fldClass = field->getDeclaringClass ();
|
|
JvInitClass(fldClass);
|
|
return fld->u.addr;
|
|
}
|
|
else
|
|
{
|
|
if (obj == NULL)
|
|
_Jv_Throw (new java::lang::NullPointerException ());
|
|
if (! _Jv_IsInstanceOf (obj, field->getDeclaringClass()))
|
|
JvThrow (new java::lang::IllegalArgumentException ());
|
|
return (void*) ((char*) obj + fld->getOffset ());
|
|
}
|
|
}
|
|
|
|
static jboolean
|
|
getBoolean (jclass cls, void* addr)
|
|
{
|
|
if (cls == JvPrimClass (boolean))
|
|
return * (jboolean *) addr;
|
|
_Jv_Throw (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static jchar
|
|
getChar (jclass cls, void* addr)
|
|
{
|
|
if (cls == JvPrimClass (char))
|
|
return * (jchar *) addr;
|
|
_Jv_Throw (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static jbyte
|
|
getByte (jclass cls, void* addr)
|
|
{
|
|
if (cls == JvPrimClass (byte))
|
|
return * (jbyte *) addr;
|
|
_Jv_Throw (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static jshort
|
|
getShort (jclass cls, void* addr)
|
|
{
|
|
if (cls == JvPrimClass (short))
|
|
return * (jshort *) addr;
|
|
if (cls == JvPrimClass (byte))
|
|
return * (jbyte *) addr;
|
|
_Jv_Throw (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static jint
|
|
getInt (jclass cls, void* addr)
|
|
{
|
|
if (cls == JvPrimClass (int))
|
|
return * (jint *) addr;
|
|
if (cls == JvPrimClass (short))
|
|
return * (jshort *) addr;
|
|
if (cls == JvPrimClass (char))
|
|
return * (jchar *) addr;
|
|
if (cls == JvPrimClass (byte))
|
|
return * (jbyte *) addr;
|
|
_Jv_Throw (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static jlong
|
|
getLong (jclass cls, void* addr)
|
|
{
|
|
if (cls == JvPrimClass (long))
|
|
return * (jlong *) addr;
|
|
return ::getInt(cls, addr);
|
|
}
|
|
|
|
static jfloat
|
|
getFloat (jclass cls, void* addr)
|
|
{
|
|
if (cls == JvPrimClass (float))
|
|
return * (jfloat *) addr;
|
|
if (cls == JvPrimClass (long))
|
|
return * (jlong *) addr;
|
|
return ::getInt(cls, addr);
|
|
}
|
|
|
|
static jdouble
|
|
getDouble (jclass cls, void* addr)
|
|
{
|
|
if (cls == JvPrimClass (double))
|
|
return * (jdouble *) addr;
|
|
if (cls == JvPrimClass (float))
|
|
return * (jfloat *) addr;
|
|
if (cls == JvPrimClass (long))
|
|
return * (jlong *) addr;
|
|
return ::getInt(cls, addr);
|
|
}
|
|
|
|
jboolean
|
|
java::lang::reflect::Field::getBoolean (jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
return ::getBoolean (fld->type, getAddr (this, caller, obj));
|
|
}
|
|
|
|
jchar
|
|
java::lang::reflect::Field::getChar (jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
return ::getChar (fld->type, getAddr (this, caller, obj));
|
|
}
|
|
|
|
jbyte
|
|
java::lang::reflect::Field::getByte (jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
return ::getByte (fld->type, getAddr (this, caller, obj));
|
|
}
|
|
|
|
jshort
|
|
java::lang::reflect::Field::getShort (jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
return ::getShort (fld->type, getAddr (this, caller, obj));
|
|
}
|
|
|
|
jint
|
|
java::lang::reflect::Field::getInt (jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
return ::getInt (fld->type, getAddr (this, caller, obj));
|
|
}
|
|
|
|
jlong
|
|
java::lang::reflect::Field::getLong (jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
return ::getLong (fld->type, getAddr (this, caller, obj));
|
|
}
|
|
|
|
jfloat
|
|
java::lang::reflect::Field::getFloat (jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
return ::getFloat (fld->type, getAddr (this, caller, obj));
|
|
}
|
|
|
|
jdouble
|
|
java::lang::reflect::Field::getDouble (jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
return ::getDouble (fld->type, getAddr (this, caller, obj));
|
|
}
|
|
|
|
jobject
|
|
java::lang::reflect::Field::get (jclass caller, jobject obj)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
void* addr = getAddr (this, caller, obj);
|
|
if (! fld->type->isPrimitive ())
|
|
return * (jobject*) addr;
|
|
if (fld->type == JvPrimClass (double))
|
|
return new java::lang::Double (* (jdouble*) addr);
|
|
if (fld->type == JvPrimClass (float))
|
|
return new java::lang::Float (* (jfloat*) addr);
|
|
if (fld->type == JvPrimClass (long))
|
|
return new java::lang::Long (* (jlong*) addr);
|
|
if (fld->type == JvPrimClass (int))
|
|
return new java::lang::Integer (* (jint*) addr);
|
|
if (fld->type == JvPrimClass (short))
|
|
return new java::lang::Short (* (jshort*) addr);
|
|
if (fld->type == JvPrimClass (byte))
|
|
return new java::lang::Byte (* (jbyte*) addr);
|
|
if (fld->type == JvPrimClass (char))
|
|
return new java::lang::Character (* (jchar*) addr);
|
|
if (fld->type == JvPrimClass (boolean))
|
|
if (* (jboolean*) addr)
|
|
return java::lang::Boolean::TRUE;
|
|
else
|
|
return java::lang::Boolean::FALSE;
|
|
JvThrow (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static void
|
|
setBoolean (jclass type, void *addr, jboolean value)
|
|
{
|
|
if (type == JvPrimClass (boolean))
|
|
* (jboolean *) addr = value;
|
|
else
|
|
JvThrow (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static void
|
|
setChar (jclass type, void *addr, jchar value)
|
|
{
|
|
if (type == JvPrimClass (char))
|
|
* (jchar *) addr = value;
|
|
else if (type == JvPrimClass (int))
|
|
* (jint *) addr = value;
|
|
else if (type == JvPrimClass (long))
|
|
* (jlong *) addr = value;
|
|
else if (type == JvPrimClass (float))
|
|
* (jfloat *) addr = value;
|
|
else if (type == JvPrimClass (double))
|
|
* (jdouble *) addr = value;
|
|
else
|
|
JvThrow (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static void
|
|
setByte (jclass type, void *addr, jbyte value)
|
|
{
|
|
if (type == JvPrimClass (byte))
|
|
* (jbyte *) addr = value;
|
|
else if (type == JvPrimClass (short))
|
|
* (jshort *) addr = value;
|
|
else if (type == JvPrimClass (int))
|
|
* (jint *) addr = value;
|
|
else if (type == JvPrimClass (long))
|
|
* (jlong *) addr = value;
|
|
else if (type == JvPrimClass (float))
|
|
* (jfloat *) addr = value;
|
|
else if (type == JvPrimClass (double))
|
|
* (jdouble *) addr = value;
|
|
else
|
|
JvThrow (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static void
|
|
setShort (jclass type, void *addr, jshort value)
|
|
{
|
|
if (type == JvPrimClass (short))
|
|
* (jshort *) addr = value;
|
|
else if (type == JvPrimClass (int))
|
|
* (jint *) addr = value;
|
|
else if (type == JvPrimClass (long))
|
|
* (jlong *) addr = value;
|
|
else if (type == JvPrimClass (float))
|
|
* (jfloat *) addr = value;
|
|
else if (type == JvPrimClass (double))
|
|
* (jdouble *) addr = value;
|
|
else
|
|
JvThrow (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static void
|
|
setInt (jclass type, void *addr, jint value)
|
|
{
|
|
if (type == JvPrimClass (int))
|
|
* (jint *) addr = value;
|
|
else if (type == JvPrimClass (long))
|
|
* (jlong *) addr = value;
|
|
else if (type == JvPrimClass (float))
|
|
* (jfloat *) addr = value;
|
|
else if (type == JvPrimClass (double))
|
|
* (jdouble *) addr = value;
|
|
else
|
|
JvThrow (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static void
|
|
setLong (jclass type, void *addr, jlong value)
|
|
{
|
|
if (type == JvPrimClass (long))
|
|
* (jlong *) addr = value;
|
|
else if (type == JvPrimClass (float))
|
|
* (jfloat *) addr = value;
|
|
else if (type == JvPrimClass (double))
|
|
* (jdouble *) addr = value;
|
|
else
|
|
JvThrow (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static void
|
|
setFloat (jclass type, void *addr, jfloat value)
|
|
{
|
|
if (type == JvPrimClass (float))
|
|
* (jfloat *) addr = value;
|
|
else if (type == JvPrimClass (double))
|
|
* (jdouble *) addr = value;
|
|
else
|
|
JvThrow (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
static void
|
|
setDouble (jclass type, void *addr, jdouble value)
|
|
{
|
|
if (type == JvPrimClass (double))
|
|
* (jdouble *) addr = value;
|
|
else
|
|
JvThrow (new java::lang::IllegalArgumentException());
|
|
}
|
|
|
|
void
|
|
java::lang::reflect::Field::setBoolean (jclass caller, jobject obj, jboolean b)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
::setBoolean (fld->type, getAddr (this, caller, obj), b);
|
|
}
|
|
|
|
void
|
|
java::lang::reflect::Field::setChar (jclass caller, jobject obj, jchar c)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
::setChar (fld->type, getAddr (this, caller, obj), c);
|
|
}
|
|
|
|
void
|
|
java::lang::reflect::Field::setByte (jclass caller, jobject obj, jbyte b)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
::setByte (fld->type, getAddr (this, caller, obj), b);
|
|
}
|
|
|
|
void
|
|
java::lang::reflect::Field::setShort (jclass caller, jobject obj, jshort s)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
::setShort (fld->type, getAddr (this, caller, obj), s);
|
|
}
|
|
|
|
void
|
|
java::lang::reflect::Field::setInt (jclass caller, jobject obj, jint i)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
::setInt (fld->type, getAddr (this, caller, obj), i);
|
|
}
|
|
|
|
void
|
|
java::lang::reflect::Field::setLong (jclass caller, jobject obj, jlong l)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
::setLong (fld->type, getAddr (this, caller, obj), l);
|
|
}
|
|
void
|
|
java::lang::reflect::Field::setFloat (jclass caller, jobject obj, jfloat f)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
::setFloat (fld->type, getAddr (this, caller, obj), f);
|
|
}
|
|
|
|
void
|
|
java::lang::reflect::Field::setDouble (jclass caller, jobject obj, jdouble d)
|
|
{
|
|
jfieldID fld = _Jv_FromReflectedField (this);
|
|
::setDouble (fld->type, getAddr (this, caller, obj), d);
|
|
}
|
|
|
|
void
|
|
java::lang::reflect::Field::set (jclass caller, jobject object, jobject value, jclass type)
|
|
{
|
|
if (! _Jv_IsInstanceOf (value, type))
|
|
JvThrow (new java::lang::IllegalArgumentException ());
|
|
void* addr = getAddr (this, caller, object);
|
|
* (jobject*) addr = value;
|
|
}
|