Method is

output/java_guava/1.4.18/TypeToken.java:983–997

Return true if any of the following conditions is met: 'this' and formalType are equal formalType is <? extends Foo> and 'this' is a subtype of Foo formalType is <? super Foo> and 'this' is a supertype of Foo

(Type formalType)

  private boolean is(Type formalType) {
    if (runtimeType.equals(formalType)) {
      return true;
    }
    if (formalType instanceof WildcardType) {
      // if "formalType" is <? extends Foo>, "this" can be:
      // Foo, SubFoo, <? extends Foo>, <? extends SubFoo>, <T extends Foo> or
      // <T extends SubFoo>.
      // if "formalType" is <? super Foo>, "this" can be:
      // Foo, SuperFoo, <? super Foo> or <? super SuperFoo>.
      return every(((WildcardType) formalType).getUpperBounds()).isSupertypeOf(runtimeType)
      && every(((WildcardType) formalType).getLowerBounds()).isSubtypeOf(runtimeType);
    }
    return false;
  }


  private static Bounds every(Type[] bounds) {