Method convertToDelegateKey

java/dagger/internal/codegen/KeyFactory.java:332–348

Keys for map contributions from dagger.Provides and dagger.producers.Produces are in the form Map >, but keys for Binds methods are just Map since the framework type is not known until graph resolution. This translates from the {@code @Pro

(Key possibleMapKey)

   * returns {@code possibleMapKey}.
   */
  Key convertToDelegateKey(Key possibleMapKey) {
    if (!MapType.isMap(possibleMapKey)) {
      return possibleMapKey;
    }
    MapType mapType = MapType.from(possibleMapKey);
    TypeMirror wrappedValueType;
    if (mapType.isRawType()) {
      return possibleMapKey;
    } else if (mapType.valuesAreTypeOf(Provider.class)) {
      wrappedValueType = mapType.unwrappedValueType(Provider.class);
    } else if (mapType.valuesAreTypeOf(Producer.class)) {
      wrappedValueType = mapType.unwrappedValueType(Producer.class);
    } else {
      return possibleMapKey;
    }
    return possibleMapKey.toBuilder().type(mapOf(mapType.keyType(), wrappedValueType)).build();
  }

  /**
   * Converts a {@link Key} of type {@code Map<K, V>} to {@code Map<K, Provider<V>>}.