what-the-bank/sources/com/google/common/collect/CompactHashing.java

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2024-07-27 18:17:47 +07:00
package com.google.common.collect;
import com.google.common.base.Objects;
import com.google.common.primitives.UnsignedBytes;
import java.util.Arrays;
/* loaded from: classes2.dex */
final class CompactHashing {
private static final int BYTE_MASK = 255;
private static final int BYTE_MAX_SIZE = 256;
static final int DEFAULT_SIZE = 3;
static final int HASH_TABLE_BITS_MASK = 31;
private static final int HASH_TABLE_BITS_MAX_BITS = 5;
static final int MAX_SIZE = 1073741823;
private static final int MIN_HASH_TABLE_SIZE = 4;
static final int MODIFICATION_COUNT_INCREMENT = 32;
private static final int SHORT_MASK = 65535;
private static final int SHORT_MAX_SIZE = 65536;
static final byte UNSET = 0;
/* JADX INFO: Access modifiers changed from: package-private */
public static int getHashPrefix(int i, int i2) {
return i & (~i2);
}
/* JADX INFO: Access modifiers changed from: package-private */
public static int getNext(int i, int i2) {
return i & i2;
}
/* JADX INFO: Access modifiers changed from: package-private */
public static int maskCombine(int i, int i2, int i3) {
return (i & (~i3)) | (i2 & i3);
}
/* JADX INFO: Access modifiers changed from: package-private */
public static int newCapacity(int i) {
return (i < 32 ? 4 : 2) * (i + 1);
}
private CompactHashing() {
}
/* JADX INFO: Access modifiers changed from: package-private */
public static int tableSize(int i) {
return Math.max(4, Hashing.closedTableSize(i + 1, 1.0d));
}
/* JADX INFO: Access modifiers changed from: package-private */
public static Object createTable(int i) {
if (i < 2 || i > 1073741824 || Integer.highestOneBit(i) != i) {
StringBuilder sb = new StringBuilder(52);
sb.append("must be power of 2 between 2^1 and 2^30: ");
sb.append(i);
throw new IllegalArgumentException(sb.toString());
}
if (i <= 256) {
return new byte[i];
}
if (i <= 65536) {
return new short[i];
}
return new int[i];
}
/* JADX INFO: Access modifiers changed from: package-private */
public static void tableClear(Object obj) {
if (obj instanceof byte[]) {
Arrays.fill((byte[]) obj, (byte) 0);
} else if (obj instanceof short[]) {
Arrays.fill((short[]) obj, (short) 0);
} else {
Arrays.fill((int[]) obj, 0);
}
}
/* JADX INFO: Access modifiers changed from: package-private */
public static int tableGet(Object obj, int i) {
if (obj instanceof byte[]) {
return ((byte[]) obj)[i] & UnsignedBytes.MAX_VALUE;
}
if (obj instanceof short[]) {
return ((short[]) obj)[i] & 65535;
}
return ((int[]) obj)[i];
}
/* JADX INFO: Access modifiers changed from: package-private */
public static void tableSet(Object obj, int i, int i2) {
if (obj instanceof byte[]) {
((byte[]) obj)[i] = (byte) i2;
} else if (obj instanceof short[]) {
((short[]) obj)[i] = (short) i2;
} else {
((int[]) obj)[i] = i2;
}
}
/* JADX INFO: Access modifiers changed from: package-private */
public static int remove(Object obj, Object obj2, int i, Object obj3, int[] iArr, Object[] objArr, Object[] objArr2) {
int i2;
int i3;
int smearedHash = Hashing.smearedHash(obj);
int i4 = smearedHash & i;
int tableGet = tableGet(obj3, i4);
if (tableGet == 0) {
return -1;
}
int hashPrefix = getHashPrefix(smearedHash, i);
int i5 = -1;
while (true) {
i2 = tableGet - 1;
i3 = iArr[i2];
if (getHashPrefix(i3, i) != hashPrefix || !Objects.equal(obj, objArr[i2]) || (objArr2 != null && !Objects.equal(obj2, objArr2[i2]))) {
int next = getNext(i3, i);
if (next == 0) {
return -1;
}
i5 = i2;
tableGet = next;
}
}
int next2 = getNext(i3, i);
if (i5 == -1) {
tableSet(obj3, i4, next2);
} else {
iArr[i5] = maskCombine(iArr[i5], next2, i);
}
return i2;
}
}