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import java.util.List;
import org.checkerframework.common.value.qual.IntRange;
// Because the analysis of loops isn't precise enough, the Value Checker issues
// warnings on this test case. So, suppress those warnings, but run the tests
// to make sure that dataflow reaches a fixed point.
// The expected errors in comments are the errors that should be issued if dataflow were precise
// enough.
@SuppressWarnings("value")
public class WidenedUpperBound {
void increment() {
int forIndex;
for (forIndex = 0; forIndex < 4323; forIndex++) {
@IntRange(from = 0, to = 4322) int x = forIndex;
}
//// ::error: (assignment.type.incompatible)
@IntRange(from = 0, to = 4322) int x = forIndex;
@IntRange(from = 4323) int y = forIndex;
int whileIndex = 0;
while (whileIndex < 1234) {
@IntRange(from = 0, to = 1233) int z = whileIndex;
whileIndex++;
}
//// ::error: (assignment.type.incompatible)
@IntRange(from = 0, to = 1233) int a = whileIndex;
@IntRange(from = 1234) int b = whileIndex;
int doWhileIndex = 0;
do {
@IntRange(from = 0, to = 2344) int c = doWhileIndex;
doWhileIndex++;
} while (doWhileIndex < 2345);
//// ::error: (assignment.type.incompatible)
@IntRange(from = 0, to = 2344) int d = doWhileIndex;
@IntRange(from = 2345) int e = doWhileIndex;
}
void decrement() {
int forIndex;
for (forIndex = 4323; forIndex > 0; forIndex--) {
@IntRange(from = 1, to = 4323) int x = forIndex;
}
//// ::error: (assignment.type.incompatible)
@IntRange(from = 1, to = 4323) int x = forIndex;
@IntRange(to = 0) int y = forIndex;
int whileIndex = 1234;
while (whileIndex > 0) {
@IntRange(from = 1, to = 1234) int z = whileIndex;
whileIndex--;
}
//// ::error: (assignment.type.incompatible)
@IntRange(from = 1, to = 1234) int a = whileIndex;
@IntRange(to = 0) int b = whileIndex;
int doWhileIndex = 2344;
do {
@IntRange(from = 1, to = 2344) int c = doWhileIndex;
doWhileIndex--;
} while (doWhileIndex > 0);
//// ::error: (assignment.type.incompatible)
@IntRange(from = 1, to = 2344) int d = doWhileIndex;
@IntRange(to = 0) int e = doWhileIndex;
}
static void test1() {
for (int i = 40; i > 0; i--) {
@IntRange(from = 1, to = 40) int x = i;
}
}
static void test1Explicit() {
for (@IntRange(from = 1, to = 40) int i = 40; i > 0; i--) {
@IntRange(from = 1, to = 40) int x = i;
}
}
static void test2() {
for (int i = 0; i < 18; i++) {
@IntRange(from = 0, to = 17) int x = i;
}
}
static void test2Explicit() {
for (@IntRange(from = 0, to = 17) int i = 0; i < 18; i++) {
@IntRange(from = 0, to = 17) int x = i;
}
}
static void test3() {
for (int i = 0; i < 18; i++) {
@IntRange(from = 0, to = 17) int x = i;
}
}
static void evenOdd(int param) {
for (int i = 0; i < 12; i++) {
if (i % 2 == 0) {
@IntRange(from = 0, to = 11) int z = i;
}
@IntRange(from = 0, to = 11) int x = i;
}
for (int i = 0; i < 12; i++) {
if (param == 0) {
@IntRange(from = 0, to = 11) int z = i;
}
@IntRange(from = 0, to = 11) int x = i;
}
}
static void evenOdd2(int param) {
for (int i = 0; i < 300; i++) {
if (i % 2 == 0) {
@IntRange(from = 0, to = 299) int z = i;
}
@IntRange(from = 0, to = 299) int x = i;
}
for (int i = 0; i < 399; i++) {
if (param == 0) {
@IntRange(from = 0, to = 398) int z = i;
}
@IntRange(from = 0, to = 398) int x = i;
}
}
void ifBlock(int param) {
int x = 10;
if (x < param) {
x = param;
}
int z = 40;
if (z < param) {
param = 40;
}
}
void doWhile() {
int d = 0;
do {
@IntRange(from = 0, to = 399) int x = d;
if (d % 2 == 0) {
@IntRange(from = 0, to = 399) int y = d;
}
d++;
} while (d < 399);
@IntRange(from = 399) int z = d;
}
void doWhileMax() {
int d = 0;
do {
@IntRange(from = 0) int x = d;
if (d % 2 == 0) {
@IntRange(from = 0) int y = d;
}
d++;
} while (d < Integer.MAX_VALUE);
@IntRange(from = 399) int z = d;
}
void whileLoop() {
int i = 0;
while (i < 399) {
@IntRange(from = 0, to = 399) int x = i;
if (i % 2 == 0) {
@IntRange(from = 0, to = 399) int y = i;
}
i++;
}
@IntRange(from = 399) int z = i;
}
static void testMax() {
for (int i = 0; i < Integer.MAX_VALUE; i++) {
@IntRange(from = 0, to = Integer.MAX_VALUE - 1) int x = i;
}
}
void exceptionLoop(List<Object> list) {
int x = 0;
for (short z = 0; z < list.size(); z++) {
x = z;
if (z == 100) {
break;
}
}
@IntRange(from = 0, to = 127) int result = x;
}
}
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