public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
Type type = typeToken.getType();
Class<? super T> rawType = typeToken.getRawType();
if (!Map.class.isAssignableFrom(rawType)) {
return null;
}
Class<?> rawTypeOfSrc = $Gson$Types.getRawType(type);
Type[] keyAndValueTypes = $Gson$Types.getMapKeyAndValueTypes(type, rawTypeOfSrc);
TypeAdapter<?> keyAdapter = getKeyAdapter(gson, keyAndValueTypes[0]);
TypeAdapter<?> valueAdapter = gson.getAdapter(TypeToken.get(keyAndValueTypes[1]));
ObjectConstructor<T> constructor = constructorConstructor.getConstructor(typeToken);
@SuppressWarnings({"unchecked", "rawtypes"})
// we don't define a type parameter for the key or value types
TypeAdapter<T> result =
new Adapter(
gson, keyAndValueTypes[0], keyAdapter, keyAndValueTypes[1], valueAdapter, constructor);
return result;
}
/** Returns a type adapter that writes the value as a string. */
private TypeAdapter<?> getKeyAdapter(Gson context, Type keyType) {
return (keyType == boolean.class || keyType == Boolean.class)
? TypeAdapters.BOOLEAN_AS_STRING
: context.getAdapter(TypeToken.get(keyType));
}