/*
 * Copyright 2015 Michael Rozumyanskiy
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.michaelrocks.lightsaber;

import javax.inject.Provider;

class SingletonProvider<T> implements Provider<T> {
  private final Provider<T> provider;
  private volatile T instance;
  private final Object instanceLock = new Object();

  public SingletonProvider(final Provider<T> provider) {
    this.provider = provider;
  }

  @Override
  public T get() {
    if (instance == null) {
      synchronized (instanceLock) {
        if (instance == null) {
          instance = provider.get();
        }
      }
    }
    return instance;
  }
}

@@ -16,9 +16,9 @@
  201
-5
+6
  Mic
@@ -646,21 +646,53 @@
 ort 
-javax.i
+io.michaelrocks.lightsaber.internal.I
 nject
-.
+ing
 Prov
@@ -736,16 +736,25 @@
 lements 
+Injecting
 Provider
@@ -771,24 +771,33 @@
 ivate final 
+Injecting
 Provider%3CT%3E 
@@ -923,16 +923,25 @@
 r(final 
+Injecting
 Provider
@@ -1203,11 +1203,280 @@
 nce;%0A  %7D
+%0A%0A  @Override%0A  public T getWithInjector(final Injector injector) %7B%0A    if (instance == null) %7B%0A      synchronized (instanceLock) %7B%0A        if (instance == null) %7B%0A          instance = provider.getWithInjector(injector);%0A        %7D%0A      %7D%0A    %7D%0A    return instance;%0A  %7D
 %0A%7D%0A

Make the SingletonProvider an InjectingProvider