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Make sure index and count do not overflow for long sequences

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Throw an exception immediately before an overflow becomes observable.
Place check to prevent negative index from indexOf, indexOfFirst.
Do not insert overflow checks for arrays, lists, maps and char sequences.

#KT-16097
This commit is contained in:
Ilya Gorbunov
2018-08-09 23:31:31 +03:00
parent c44f62a3d4
commit 357c5be4fb
16 changed files with 252 additions and 58 deletions
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libraries/stdlib/common/src/generated/_Arrays.kt
+21 -21
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@@ -9701,7 +9701,7 @@ public inline fun CharArray.count(): Int {
*/
public inline fun <T> Array<out T>.count(predicate: (T) -> Boolean): Int {
var count = 0
for (element in this) if (predicate(element)) count++
for (element in this) if (predicate(element)) ++count
return count
}
@@ -9710,7 +9710,7 @@ public inline fun <T> Array<out T>.count(predicate: (T) -> Boolean): Int {
*/
public inline fun ByteArray.count(predicate: (Byte) -> Boolean): Int {
var count = 0
for (element in this) if (predicate(element)) count++
for (element in this) if (predicate(element)) ++count
return count
}
@@ -9719,7 +9719,7 @@ public inline fun ByteArray.count(predicate: (Byte) -> Boolean): Int {
*/
public inline fun ShortArray.count(predicate: (Short) -> Boolean): Int {
var count = 0
for (element in this) if (predicate(element)) count++
for (element in this) if (predicate(element)) ++count
return count
}
@@ -9728,7 +9728,7 @@ public inline fun ShortArray.count(predicate: (Short) -> Boolean): Int {
*/
public inline fun IntArray.count(predicate: (Int) -> Boolean): Int {
var count = 0
for (element in this) if (predicate(element)) count++
for (element in this) if (predicate(element)) ++count
return count
}
@@ -9737,7 +9737,7 @@ public inline fun IntArray.count(predicate: (Int) -> Boolean): Int {
*/
public inline fun LongArray.count(predicate: (Long) -> Boolean): Int {
var count = 0
for (element in this) if (predicate(element)) count++
for (element in this) if (predicate(element)) ++count
return count
}
@@ -9746,7 +9746,7 @@ public inline fun LongArray.count(predicate: (Long) -> Boolean): Int {
*/
public inline fun FloatArray.count(predicate: (Float) -> Boolean): Int {
var count = 0
for (element in this) if (predicate(element)) count++
for (element in this) if (predicate(element)) ++count
return count
}
@@ -9755,7 +9755,7 @@ public inline fun FloatArray.count(predicate: (Float) -> Boolean): Int {
*/
public inline fun DoubleArray.count(predicate: (Double) -> Boolean): Int {
var count = 0
for (element in this) if (predicate(element)) count++
for (element in this) if (predicate(element)) ++count
return count
}
@@ -9764,7 +9764,7 @@ public inline fun DoubleArray.count(predicate: (Double) -> Boolean): Int {
*/
public inline fun BooleanArray.count(predicate: (Boolean) -> Boolean): Int {
var count = 0
for (element in this) if (predicate(element)) count++
for (element in this) if (predicate(element)) ++count
return count
}
@@ -9773,7 +9773,7 @@ public inline fun BooleanArray.count(predicate: (Boolean) -> Boolean): Int {
*/
public inline fun CharArray.count(predicate: (Char) -> Boolean): Int {
var count = 0
for (element in this) if (predicate(element)) count++
for (element in this) if (predicate(element)) ++count
return count
}
@@ -13504,7 +13504,7 @@ public fun Array<out Byte>.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13518,7 +13518,7 @@ public fun Array<out Short>.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13532,7 +13532,7 @@ public fun Array<out Int>.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13546,7 +13546,7 @@ public fun Array<out Long>.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13560,7 +13560,7 @@ public fun Array<out Float>.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13574,7 +13574,7 @@ public fun Array<out Double>.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13587,7 +13587,7 @@ public fun ByteArray.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13600,7 +13600,7 @@ public fun ShortArray.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13613,7 +13613,7 @@ public fun IntArray.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13626,7 +13626,7 @@ public fun LongArray.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13639,7 +13639,7 @@ public fun FloatArray.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}
@@ -13652,7 +13652,7 @@ public fun DoubleArray.average(): Double {
var count: Int = 0
for (element in this) {
sum += element
count += 1
++count
}
return if (count == 0) Double.NaN else sum / count
}