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import java.util.BitSet;
import org.checkerframework.common.value.qual.*;
class Binaries {
private BitSet bitmap;
public void test() {
int length = bitmap.length();
for (int i = 0, t = 0; i < length; i++) {
t |= (bitmap.get(i) ? (1 << (7 - i % 8)) : 0);
if (i % 8 == 7 || i == length - 1) {
write(t);
t = 0;
}
}
}
void write(int t) {}
// Test widenedUpperBound is working.
public void loop(int c) {
double v = 0;
int decexp = 0;
int seendot = 0;
while (true) {
if (c == '.' && seendot == 0) seendot = 1;
else if ('0' <= c && c <= '9') {
v = v * 10 + (c - '0');
decexp += seendot;
} else break;
}
}
public void testIntRange(
@IntVal({1, 2}) int values,
@IntRange(from = 3, to = 4) int range1,
@IntRange(from = 5, to = 20) int range2,
@BottomVal int bottom,
@UnknownVal int top) {
/* IntRange + IntRange */
@IntRange(from = 8, to = 24) int a = range1 + range2;
/* IntRange * IntVal */
@IntRange(from = 3, to = 8) int b = values * range1;
/* IntRange * BottomVal */
int c = range1 * bottom;
/* IntRange * UnknownVal */
@IntRange(from = 0)
// :: error: (assignment.type.incompatible)
int d = range1 + top;
}
public void add() {
int a = 1;
if (true) {
a = 2;
}
@IntVal({3, 4}) int b = a + 2;
double c = 1.0;
if (true) {
c = 2.0;
}
@DoubleVal({3.0, 4.0}) double d = c + 2;
char e = '1';
if (true) {
e = '2';
}
@IntVal({'3', '4'}) char f = (char) (e + 2);
String g = "A";
if (true) {
g = "B";
}
@StringVal({"nullC", "AC", "BC"}) String h = g + "C";
}
public void subtract() {
int a = 1;
if (true) {
a = 2;
}
@IntVal({-1, 0}) int b = a - 2;
double c = 1.0;
if (true) {
c = 2.0;
}
@DoubleVal({-1.0, 0.0}) double d = c - 2;
char e = '2';
if (true) {
e = '3';
}
@IntVal({'0', '1'}) char f = (char) (e - 2);
}
public void multiply() {
int a = 1;
if (true) {
a = 2;
}
@IntVal({2, 4}) int b = a * 2;
double c = 1.0;
if (true) {
c = 2.0;
}
@DoubleVal({2.0, 4.0}) double d = (double) (c * 2);
char e = (char) 25;
if (true) {
e = (char) 26;
}
@IntVal({'2', '4'}) char f = (char) (e * 2);
@DoubleVal(0.75) float g = 1 * 0.75f;
}
public void divide() {
int a = 2;
if (true) {
a = 4;
}
@IntVal({1, 2}) int b = a / 2;
double c = 1.0;
if (true) {
c = 2.0;
}
@DoubleVal({0.5, 1.0}) double d = c / 2;
char e = (char) 96;
if (true) {
e = (char) 98;
}
@IntVal({'0', '1'}) char f = (char) (e / 2);
@IntVal(0) int g = 2 / 3;
@IntVal(0) int h = (Integer.MAX_VALUE - 1) / Integer.MAX_VALUE;
@IntVal(0) long l = (Long.MAX_VALUE - 1) / Long.MAX_VALUE;
}
public void remainder() {
int a = 4;
if (true) {
a = 5;
}
@IntVal({1, 2}) int b = a % 3;
double c = 4.0;
if (true) {
c = 5.0;
}
@DoubleVal({1.0, 2.0}) double d = c % 3;
char e = (char) 98;
if (true) {
e = (char) 99;
}
@IntVal({'0', '1'}) char f = (char) (e % 50);
}
public boolean flag = true;
public void and() {
boolean a = true;
if (flag) {
a = false;
}
// :: error: (assignment.type.incompatible)
@BoolVal({true}) boolean b = a & true;
int c = 4;
if (true) {
c = 5;
}
@IntVal({0, 1}) int d = c & 3;
char e = (char) 48;
if (true) {
e = (char) 51;
}
@IntVal({'0', '2'}) char f = (char) (e & 50);
}
public void or() {
boolean a = true;
if (true) {
a = false;
}
// TODO: we could detect this case
// :: error: (assignment.type.incompatible)
@BoolVal({true}) boolean b = a | true;
int c = 4;
if (true) {
c = 5;
}
@IntVal({7}) int d = c | 3;
char e = (char) 48;
if (true) {
e = (char) 51;
}
@IntVal({'1', '3'}) char f = (char) (e | 1);
}
public void xor() {
boolean a = true;
if (true) {
a = false;
}
// :: error: (assignment.type.incompatible)
@BoolVal({true}) boolean b = a ^ true;
int c = 4;
if (true) {
c = 5;
}
@IntVal({7, 6}) int d = c ^ 3;
char e = (char) 48;
if (true) {
e = (char) 51;
}
@IntVal({'1', '2'}) char f = (char) (e ^ 1);
}
public void boolAnd() {
@BoolVal({false}) boolean a = true && false;
@BoolVal({true}) boolean b = false || true;
}
public void conditionals() {
@BoolVal({false}) boolean a = 1.0f == '1';
@BoolVal({true}) boolean b = 1 != 2.0;
@BoolVal({true}) boolean c = 1 > 0.5;
@BoolVal({true}) boolean d = 1 >= 1.0;
@BoolVal({true}) boolean e = 1 < 1.1f;
@BoolVal({true}) boolean f = (char) 2 <= 2.0;
@IntVal('!') Character BANG = '!';
@BoolVal(true) boolean g = (BANG == '!');
char bangChar = '!';
@BoolVal(true) boolean h = (BANG == bangChar);
Character bang = '!';
// Reference equalitiy is used
// :: error: (assignment.type.incompatible)
@BoolVal(false) boolean i = (BANG == bang);
}
public void loop() throws InterruptedException {
int spurious_count = 0;
while (true) {
wait();
if (System.currentTimeMillis() == 0) {
spurious_count++;
if (spurious_count > 1024) {
break;
}
}
}
}
public void shifts() {
int a = -8;
if (true) {
a = 4;
}
@IntVal({1, -2}) int b = a >> 2;
int c = 1;
if (true) {
c = 2;
}
@IntVal({4, 8}) int d = c << 2;
int e = -8;
if (true) {
e = 4;
}
@IntVal({Integer.MAX_VALUE / 2 - 1, 1}) int f = e >>> 2;
char g = (char) 24;
if (true) {
g = (char) 25;
}
@IntVal({'0', '2'}) char h = (char) (g << 1);
}
public void chains() {
char a = 2;
int b = 3;
double c = 5;
@DoubleVal({1}) double d = a * b - c;
@DoubleVal({3}) double e = a * c - 2 * b - (char) 1;
}
public void compareWithNull() {
String s = "1";
// TODO
// :: error: (assignment.type.incompatible)
@BoolVal(true) boolean b = (s != null);
}
public void nullConcatenation(@StringVal({"a", "b"}) String arg) {
String n1 = null;
String n2 = "null";
String k = "const";
// @StringVal("nullnull") String a1 = n1 + null;
@StringVal("nullnull") String a2 = n1 + "null";
// @StringVal("nullnull") String a3 = n1 + n1;
@StringVal("nullnull") String a4 = n1 + n2;
@StringVal({"nullconst", "nullnull"}) String a5 = n1 + k;
@StringVal("nullconst") String a6 = n1 + "const";
@StringVal("nullnull") String b1 = n2 + null;
@StringVal("nullnull") String b2 = n2 + "null";
@StringVal("nullnull") String b3 = n2 + n1;
@StringVal("nullnull") String b4 = n2 + n2;
@StringVal({"nullconst", "nullnull"}) String b5 = n2 + k;
@StringVal("nullconst") String b6 = n2 + "const";
@StringVal({"anull", "bnull", "nullnull"}) String c1 = arg + null;
@StringVal({"anull", "bnull", "nullnull"}) String c2 = arg + "null";
@StringVal({"anull", "bnull", "nullnull"}) String c3 = arg + n1;
@StringVal({"anull", "bnull", "nullnull"}) String c4 = arg + n2;
@StringVal({"aconst", "anull", "bconst", "bnull", "nullconst", "nullnull"}) String c5 = arg + k;
@StringVal({"aconst", "bconst", "nullconst"}) String c6 = arg + "const";
@StringVal({"a2147483647", "b2147483647", "null2147483647"}) String c7 = arg + Integer.MAX_VALUE;
}
public void conditionalComparisions() {
@BoolVal(true) boolean a1 = true || false;
@BoolVal(true) boolean a2 = true || true;
@BoolVal(false) boolean a3 = false || false;
@BoolVal(true) boolean a4 = false || true;
@BoolVal(false) boolean a5 = true && false;
@BoolVal(true) boolean a6 = true && true;
@BoolVal(false) boolean a7 = false && false;
@BoolVal(false) boolean a8 = false && true;
boolean unknown = flag ? true : false;
@BoolVal(true) boolean a9 = true || unknown;
@BoolVal(true) boolean a11 = unknown || true;
// :: error: (assignment.type.incompatible)
@BoolVal(false) boolean a12 = unknown || false;
// :: error: (assignment.type.incompatible)
@BoolVal(true) boolean a13 = false || unknown;
// :: error: (assignment.type.incompatible)
@BoolVal(true) boolean a14 = true && unknown;
// :: error: (assignment.type.incompatible)
@BoolVal(true) boolean a15 = unknown && true;
@BoolVal(false) boolean a16 = unknown && false;
@BoolVal(false) boolean a17 = false && unknown;
}
}
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