42 lines
1.3 KiB
Java
42 lines
1.3 KiB
Java
package dagger.internal;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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/* loaded from: classes3.dex */
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public final class SetBuilder<T> {
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private static final String SET_CONTRIBUTIONS_CANNOT_BE_NULL = "Set contributions cannot be null";
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private final List<T> contributions;
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private SetBuilder(int i) {
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this.contributions = new ArrayList(i);
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}
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public static <T> SetBuilder<T> newSetBuilder(int i) {
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return new SetBuilder<>(i);
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}
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public SetBuilder<T> add(T t2) {
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this.contributions.add(Preconditions.checkNotNull(t2, SET_CONTRIBUTIONS_CANNOT_BE_NULL));
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return this;
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}
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public SetBuilder<T> addAll(Collection<? extends T> collection) {
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Iterator<? extends T> it = collection.iterator();
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while (it.hasNext()) {
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Preconditions.checkNotNull(it.next(), SET_CONTRIBUTIONS_CANNOT_BE_NULL);
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}
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this.contributions.addAll(collection);
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return this;
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}
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public Set<T> build() {
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return this.contributions.isEmpty() ? Collections.EMPTY_SET : this.contributions.size() == 1 ? Collections.singleton(this.contributions.get(0)) : Collections.unmodifiableSet(new HashSet(this.contributions));
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}
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}
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