Examples of com.google.common.reflect.TypeResolver$TypeVariableKey

com.google.common.reflect.TypeResolver
Wraps around {@code TypeVariable} to ensure that any two type variables are equal as long asthey are declared by the same {@link java.lang.reflect.GenericDeclaration} and have the samename, even if their bounds differ.
While resolving a type variable from a {var -> type} map, we don't care whether the type variable's bound has been partially resolved. As long as the type variable "identity" matches.
On the other hand, if for example we are resolving List to List , we need to compare that is unequal to in order to decide to use the transformed type instead of the original type.


   @SuppressWarnings("unchecked")
   public <X, Y> TypeToken<T> where(TypeParameter2<X> typeParam1,
         TypeToken<X> typeArg1, TypeParameter2<Y> typeParam2, TypeToken<Y> typeArg2) {
      // resolving both parameters in one shot seems to work around 1635
      TypeResolver resolver = new TypeResolver();
      // where(Map) is package-private in TypeResolver
      Invokable<TypeResolver, TypeResolver> whereWithMap =
            Reflection2.<TypeResolver, TypeResolver>method(TypeResolver.class, "where",
                  Map.class);
      try {
         resolver = whereWithMap.invoke(resolver, ImmutableMap.of(
               typeParam1.getTypeVariable(), typeArg1.getType(),
               typeParam2.getTypeVariable(), typeArg2.getType()));
      } catch (IllegalAccessException exception) {
         // should never happen
         throw new IllegalStateException(exception);
      } catch (InvocationTargetException exception) {
         // should never happen
         throw new IllegalStateException(exception);
      }
      return (TypeToken<T>) TypeToken.of(resolver.resolveType(getType()));
   }

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   @SuppressWarnings("unchecked")
   public <X, Y> TypeToken<T> where(TypeParameter2<X> typeParam1,
         TypeToken<X> typeArg1, TypeParameter2<Y> typeParam2, TypeToken<Y> typeArg2) {
      // resolving both parameters in one shot seems to work around 1635
      TypeResolver resolver = new TypeResolver();
      // where(Map) is package-private in TypeResolver
      Invokable<TypeResolver, TypeResolver> whereWithMap =
            Reflection2.<TypeResolver, TypeResolver>method(TypeResolver.class, "where",
                  Map.class);
      try {
         resolver = whereWithMap.invoke(resolver, ImmutableMap.of(
               typeParam1.getTypeVariable(), typeArg1.getType(),
               typeParam2.getTypeVariable(), typeArg2.getType()));
      } catch (IllegalAccessException exception) {
         // should never happen
         throw new IllegalStateException(exception);
      } catch (InvocationTargetException exception) {
         // should never happen
         throw new IllegalStateException(exception);
      }
      return (TypeToken<T>) TypeToken.of(resolver.resolveType(getType()));
   }

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            };
        }


        @SuppressWarnings("unchecked")
        public <I> Builder<T> where(Parameter<I> parameter, ModelType<I> type) {
            TypeResolver resolver = new TypeResolver().where(parameter.typeVariable, type.typeToken.getType());
            typeToken = (TypeToken<T>) TypeToken.of(resolver.resolveType(typeToken.getType()));
            return this;
        }

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