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Diffstat (limited to 'include/lib/ArduinoJson/JsonVariantImpl.hpp')
-rw-r--r-- | include/lib/ArduinoJson/JsonVariantImpl.hpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/include/lib/ArduinoJson/JsonVariantImpl.hpp b/include/lib/ArduinoJson/JsonVariantImpl.hpp new file mode 100644 index 0000000..31f96ce --- /dev/null +++ b/include/lib/ArduinoJson/JsonVariantImpl.hpp @@ -0,0 +1,126 @@ +// ArduinoJson - arduinojson.org +// Copyright Benoit Blanchon 2014-2018 +// MIT License + +#pragma once + +#include "Configuration.hpp" +#include "JsonArray.hpp" +#include "JsonObject.hpp" +#include "JsonVariant.hpp" +#include "Polyfills/isFloat.hpp" +#include "Polyfills/isInteger.hpp" +#include "Polyfills/parseFloat.hpp" +#include "Polyfills/parseInteger.hpp" + +#include <string.h> // for strcmp + +namespace ArduinoJson { + +inline JsonVariant::JsonVariant(const JsonArray &array) { + if (array.success()) { + _type = Internals::JSON_ARRAY; + _content.asArray = const_cast<JsonArray *>(&array); + } else { + _type = Internals::JSON_UNDEFINED; + } +} + +inline JsonVariant::JsonVariant(const JsonObject &object) { + if (object.success()) { + _type = Internals::JSON_OBJECT; + _content.asObject = const_cast<JsonObject *>(&object); + } else { + _type = Internals::JSON_UNDEFINED; + } +} + +inline JsonArray &JsonVariant::variantAsArray() const { + if (_type == Internals::JSON_ARRAY) return *_content.asArray; + return JsonArray::invalid(); +} + +inline JsonObject &JsonVariant::variantAsObject() const { + if (_type == Internals::JSON_OBJECT) return *_content.asObject; + return JsonObject::invalid(); +} + +template <typename T> +inline T JsonVariant::variantAsInteger() const { + using namespace Internals; + switch (_type) { + case JSON_UNDEFINED: + return 0; + case JSON_POSITIVE_INTEGER: + case JSON_BOOLEAN: + return T(_content.asInteger); + case JSON_NEGATIVE_INTEGER: + return T(~_content.asInteger + 1); + case JSON_STRING: + case JSON_UNPARSED: + return parseInteger<T>(_content.asString); + default: + return T(_content.asFloat); + } +} + +inline const char *JsonVariant::variantAsString() const { + using namespace Internals; + if (_type == JSON_UNPARSED && _content.asString && + !strcmp("null", _content.asString)) + return NULL; + if (_type == JSON_STRING || _type == JSON_UNPARSED) return _content.asString; + return NULL; +} + +template <typename T> +inline T JsonVariant::variantAsFloat() const { + using namespace Internals; + switch (_type) { + case JSON_UNDEFINED: + return 0; + case JSON_POSITIVE_INTEGER: + case JSON_BOOLEAN: + return static_cast<T>(_content.asInteger); + case JSON_NEGATIVE_INTEGER: + return -static_cast<T>(_content.asInteger); + case JSON_STRING: + case JSON_UNPARSED: + return parseFloat<T>(_content.asString); + default: + return static_cast<T>(_content.asFloat); + } +} + +inline bool JsonVariant::variantIsBoolean() const { + using namespace Internals; + if (_type == JSON_BOOLEAN) return true; + + if (_type != JSON_UNPARSED || _content.asString == NULL) return false; + + return !strcmp(_content.asString, "true") || + !strcmp(_content.asString, "false"); +} + +inline bool JsonVariant::variantIsInteger() const { + using namespace Internals; + + return _type == JSON_POSITIVE_INTEGER || _type == JSON_NEGATIVE_INTEGER || + (_type == JSON_UNPARSED && isInteger(_content.asString)); +} + +inline bool JsonVariant::variantIsFloat() const { + using namespace Internals; + + return _type == JSON_FLOAT || _type == JSON_POSITIVE_INTEGER || + _type == JSON_NEGATIVE_INTEGER || + (_type == JSON_UNPARSED && isFloat(_content.asString)); +} + +#if ARDUINOJSON_ENABLE_STD_STREAM +inline std::ostream &operator<<(std::ostream &os, const JsonVariant &source) { + return source.printTo(os); +} +#endif + +} // namespace ArduinoJson |