Method directMapKeyExpression

java/dagger/internal/codegen/MapKeys.java:167–177

Returns a code block for the map key annotation mapKey. This method assumes the map key will be accessible in the context that the returned CodeBlock is used. Use #getMapKeyExpression(ContributionBinding, ClassName) when that assumption is not guaranteed. @throws Illegal

(AnnotationMirror mapKey)

   *     annotation
   */
  private static CodeBlock directMapKeyExpression(AnnotationMirror mapKey) {
    Optional<? extends AnnotationValue> unwrappedValue = unwrapValue(mapKey);
    AnnotationExpression annotationExpression = new AnnotationExpression(mapKey);
    if (unwrappedValue.isPresent()) {
      TypeMirror unwrappedValueType =
          getOnlyElement(getAnnotationValuesWithDefaults(mapKey).keySet()).getReturnType();
      return annotationExpression.getValueExpression(unwrappedValueType, unwrappedValue.get());
    } else {
      return annotationExpression.getAnnotationInstanceExpression();
    }
  }

  /**
   * A {@code static mapKey()} method to be added to generated factories when the {@code @MapKey}