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