Merges the default options of the Json Decoder with the passed context.
array $context:
array
private function resolveContext(array $context) {
$defaultOptions = array(
'json_decode_associative' => $this->associative,
'json_decode_recursion_depth' => $this->recursionDepth,
'json_decode_options' => 0,
);
return array_merge($defaultOptions, $context);
}