static FieldInfo getFieldInfo(MJIEnv env, int objRef) {
int fidx = env.getIntField(objRef, "regIdx");
assert ((fidx >= 0) || (fidx < nRegistered))
: "illegal FieldInfo request: " + fidx + ", " + nRegistered;
return registered[fidx];
}
static FieldInfo getFieldInfo(FeatureExpr ctx, MJIEnv env, int objRef) {
int fidx = env.getIntField(objRef, "regIdx").simplify(ctx).getValue().intValue();
assert ((fidx >= 0) || (fidx < nRegistered))
: "illegal FieldInfo request: " + fidx + ", " + nRegistered;
return registered[fidx];
}
@MJI
public int delete__II__Ljava_lang_StringBuilder_2(
final MJIEnv env,
final int objref,
final Integer beginIndex,
final Integer endIndex,
FeatureExpr ctx) {
final Integer aref = env.getReferenceField(ctx, objref, "value").getValue();
Conditional<Integer> count = env.getIntField(objref, "count");
final int diff = endIndex - beginIndex;
count.mapf(
ctx,
new VoidBiFunction<FeatureExpr, Integer>() {
@Override
public void apply(FeatureExpr ctx, Integer count) {
for (int i = beginIndex, j = endIndex; i < count; i++, j++) {
if (j < count) {
env.setCharArrayElement(ctx, aref, i, env.getCharArrayElement(aref, j));
} else {
env.setCharArrayElement(ctx, aref, i, new One<>(' '));
}
}
env.setIntField(ctx, objref, "count", new One<>(count - diff));
}
});
return objref;
}
public static boolean equals__Ljava_lang_Object_2__Z(MJIEnv env, int objRef, int fobjRef) {
int fidx = env.getIntField(fobjRef, "regIdx");
if (fidx >= 0 && fidx < nRegistered) {
FieldInfo fi1 = getFieldInfo(env, objRef);
FieldInfo fi2 = getFieldInfo(env, fobjRef);
return ((fi1.getClassInfo() == fi2.getClassInfo())
&& fi1.getName().equals(fi2.getName())
&& fi1.getType().equals(fi2.getType()));
}
return false;
}
private static boolean setValue(MJIEnv env, FieldInfo fi, int obj, int value, Object attr) {
ClassInfo fieldClassInfo = fi.getClassInfo();
String className = fieldClassInfo.getName();
String fieldType = fi.getType();
try {
ClassInfo tci = fi.getTypeClassInfo();
if (tci.isPrimitive()) {
if (value == MJIEnv.NULL) {
return false;
}
// checks whether unboxing can be done by accessing the field "value"
final String fieldName = "value";
FieldInfo finfo = env.getElementInfo(value).getFieldInfo(fieldName);
if (finfo == null) {
return false;
}
ElementInfo ei =
fi.isStatic() ? fi.getClassInfo().getStaticElementInfo() : env.getElementInfo(obj);
ei.setFieldAttr(fi, attr);
if ("boolean".equals(fieldType)) {
boolean val = env.getBooleanField(value, fieldName);
ei.setBooleanField(fi, val);
return true;
} else if ("byte".equals(fieldType)) {
byte val = env.getByteField(value, fieldName);
ei.setByteField(fi, val);
return true;
} else if ("char".equals(fieldType)) {
char val = env.getCharField(value, fieldName);
ei.setCharField(fi, val);
return true;
} else if ("short".equals(fieldType)) {
short val = env.getShortField(value, fieldName);
ei.setShortField(fi, val);
return true;
} else if ("int".equals(fieldType)) {
int val = env.getIntField(value, fieldName);
ei.setIntField(fi, val);
return true;
} else if ("long".equals(fieldType)) {
long val = env.getLongField(value, fieldName);
ei.setLongField(fi, val);
return true;
} else if ("float".equals(fieldType)) {
float val = env.getFloatField(value, fieldName);
ei.setFloatField(fi, val);
return true;
} else if ("double".equals(fieldType)) {
double val = env.getDoubleField(value, fieldName);
ei.setDoubleField(fi, val);
return true;
} else {
return false;
}
} else { // it's a reference
if (value != MJIEnv.NULL) {
String type = env.getTypeName(value);
// this is an instance so the ClassInfo has to be registered
ClassInfo valueCI = ClassInfo.getResolvedClassInfo(type);
if (!valueCI.isInstanceOf(tci)) {
return false;
}
}
ElementInfo ei =
fi.isStatic() ? fi.getClassInfo().getStaticElementInfo() : env.getElementInfo(obj);
ei.setFieldAttr(fi, attr);
if (fi.isStatic()) {
env.setStaticReferenceField(className, fi.getName(), value);
} else {
env.setReferenceField(obj, fi.getName(), value);
}
return true;
}
} catch (NoClassInfoException cx) {
env.throwException("java.lang.NoClassDefFoundError", cx.getMessage());
return false;
}
}
private static boolean setValue(
FeatureExpr ctx, MJIEnv env, FieldInfo fi, int obj, int value, Object attr) {
ClassInfo fieldClassInfo = fi.getClassInfo();
String className = fieldClassInfo.getName();
String fieldType = fi.getType();
ClassInfo tci = fi.getTypeClassInfo();
ElementInfo ei = null;
if (fi.isStatic()) {
ei = fi.getClassInfo().getModifiableStaticElementInfo();
} else {
ei = env.getModifiableElementInfo(obj);
}
if (tci.isPrimitive()) {
if (value == MJIEnv.NULL) {
return false;
}
// checks whether unboxing can be done by accessing the field "value"
final String fieldName = "value";
FieldInfo finfo = env.getElementInfo(value).getFieldInfo(fieldName);
if (finfo == null) {
return false;
}
ei.setFieldAttr(fi, attr);
if ("boolean".equals(fieldType)) {
Conditional<Boolean> val = env.getBooleanField(value, fieldName);
ei.setBooleanField(ctx, fi, val);
return true;
} else if ("byte".equals(fieldType)) {
Conditional<Byte> val = env.getByteField(value, fieldName);
ei.setByteField(ctx, fi, val);
return true;
} else if ("char".equals(fieldType)) {
Conditional<Character> val = env.getCharField(value, fieldName);
ei.setCharField(ctx, fi, val);
return true;
} else if ("short".equals(fieldType)) {
Conditional<Short> val = env.getShortField(value, fieldName);
ei.setShortField(ctx, fi, val);
return true;
} else if ("int".equals(fieldType)) {
Conditional<Integer> val = env.getIntField(value, fieldName);
ei.setIntField(ctx, fi, val);
return true;
} else if ("long".equals(fieldType)) {
Conditional<Long> val = env.getLongField(value, fieldName);
ei.setLongField(ctx, fi, val);
return true;
} else if ("float".equals(fieldType)) {
Conditional<Float> val = env.getFloatField(value, fieldName);
ei.setFloatField(ctx, fi, val);
return true;
} else if ("double".equals(fieldType)) {
Conditional<Double> val = env.getDoubleField(value, fieldName);
ei.setDoubleField(ctx, fi, val);
return true;
} else {
return false;
}
} else { // it's a reference
if (value != MJIEnv.NULL) {
ClassInfo ciValue = env.getClassInfo(value);
if (!ciValue.isInstanceOf(tci)) {
return false;
}
}
ei.setFieldAttr(fi, attr);
if (fi.isStatic()) {
env.setStaticReferenceField(ctx, className, fi.getName(), value);
} else {
env.setReferenceField(ctx, obj, fi.getName(), value);
}
return true;
}
}