Initial import of ADIF API reverse-engineering toolkit

apk_decompiled/sources/com/google/firebase/components/LazySet.java

@@ -0,0 +1,63 @@
+package com.google.firebase.components;
+
+import com.google.firebase.inject.Provider;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+/* JADX INFO: Access modifiers changed from: package-private */
+/* loaded from: classes3.dex */
+public class LazySet<T> implements Provider<Set<T>> {
+    private volatile Set<T> actualSet = null;
+    private volatile Set<Provider<T>> providers = Collections.newSetFromMap(new ConcurrentHashMap());
+
+    public LazySet(Collection<Provider<T>> collection) {
+        this.providers.addAll(collection);
+    }
+
+    public static LazySet<?> fromCollection(Collection<Provider<?>> collection) {
+        return new LazySet<>((Set) collection);
+    }
+
+    private synchronized void updateSet() {
+        try {
+            Iterator<Provider<T>> it = this.providers.iterator();
+            while (it.hasNext()) {
+                this.actualSet.add(it.next().get());
+            }
+            this.providers = null;
+        } catch (Throwable th) {
+            throw th;
+        }
+    }
+
+    public synchronized void add(Provider<T> provider) {
+        try {
+            if (this.actualSet == null) {
+                this.providers.add(provider);
+            } else {
+                this.actualSet.add(provider.get());
+            }
+        } catch (Throwable th) {
+            throw th;
+        }
+    }
+
+    @Override // com.google.firebase.inject.Provider
+    public Set<T> get() {
+        if (this.actualSet == null) {
+            synchronized (this) {
+                try {
+                    if (this.actualSet == null) {
+                        this.actualSet = Collections.newSetFromMap(new ConcurrentHashMap());
+                        updateSet();
+                    }
+                } finally {
+                }
+            }
+        }
+        return Collections.unmodifiableSet(this.actualSet);
+    }
+}