static ElementInfo getCheckedElementInfo(
MJIEnv env,
int objRef,
FieldInfo fi,
int fobjRef,
Class<?> fiType,
String type,
boolean isWrite,
FeatureExpr ctx) {
ElementInfo ei;
if (!isAvailable(env, fi, fobjRef, ctx)) {
return null;
}
if (fi.isStatic()) {
ClassInfo fci = fi.getClassInfo();
ei = isWrite ? fci.getModifiableStaticElementInfo() : fci.getStaticElementInfo();
} else { // instance field
ei = isWrite ? env.getModifiableElementInfo(fobjRef) : env.getElementInfo(fobjRef);
}
// our guards (still need IllegalAccessException)
if (fi.isPrivate() && !env.getBooleanField(objRef, "isAccessible").getValue()) {
env.throwException(ctx, IllegalAccessException.class.getName(), fi + "");
return null;
}
if (ei == null) {
env.throwException(ctx, "java.lang.NullPointerException");
return null;
}
if (fiType != null) {
if (fiType == ByteFieldInfo.class) {
if (fi.isByteField()) {
return ei;
}
} else if (fiType == ShortFieldInfo.class) {
if (fi.isShortField()) {
return ei;
}
} else if (fiType == IntegerFieldInfo.class) {
if (fi.isIntField()) {
return ei;
}
} else if (fiType == LongFieldInfo.class) {
if (fi.isLongField()) {
return ei;
}
} else if (fiType == FloatFieldInfo.class) {
if (fi.isFloatField()) {
return ei;
}
}
if (!fiType.isInstance(fi)) {
env.throwException(
ctx,
"java.lang.IllegalArgumentException",
"field type " + fi.getType() + " incompatible with " + type);
return null;
}
}
return ei;
}
