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127 lines
3.4 KiB
C++
Executable File
127 lines
3.4 KiB
C++
Executable File
// ArduinoJson - arduinojson.org
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// Copyright Benoit Blanchon 2014-2017
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// MIT License
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#pragma once
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#include "Configuration.hpp"
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#include "JsonArray.hpp"
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#include "JsonObject.hpp"
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#include "JsonVariant.hpp"
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#include "Polyfills/isFloat.hpp"
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#include "Polyfills/isInteger.hpp"
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#include "Polyfills/parseFloat.hpp"
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#include "Polyfills/parseInteger.hpp"
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#include <string.h> // for strcmp
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namespace ArduinoJson {
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inline JsonVariant::JsonVariant(const JsonArray &array) {
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if (array.success()) {
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_type = Internals::JSON_ARRAY;
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_content.asArray = const_cast<JsonArray *>(&array);
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} else {
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_type = Internals::JSON_UNDEFINED;
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}
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}
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inline JsonVariant::JsonVariant(const JsonObject &object) {
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if (object.success()) {
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_type = Internals::JSON_OBJECT;
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_content.asObject = const_cast<JsonObject *>(&object);
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} else {
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_type = Internals::JSON_UNDEFINED;
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}
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}
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inline JsonArray &JsonVariant::variantAsArray() const {
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if (_type == Internals::JSON_ARRAY) return *_content.asArray;
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return JsonArray::invalid();
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}
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inline JsonObject &JsonVariant::variantAsObject() const {
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if (_type == Internals::JSON_OBJECT) return *_content.asObject;
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return JsonObject::invalid();
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}
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template <typename T>
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inline T JsonVariant::variantAsInteger() const {
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using namespace Internals;
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switch (_type) {
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case JSON_UNDEFINED:
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return 0;
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case JSON_POSITIVE_INTEGER:
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case JSON_BOOLEAN:
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return T(_content.asInteger);
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case JSON_NEGATIVE_INTEGER:
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return T(~_content.asInteger + 1);
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case JSON_STRING:
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case JSON_UNPARSED:
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return Polyfills::parseInteger<T>(_content.asString);
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default:
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return T(_content.asFloat);
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}
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}
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inline const char *JsonVariant::variantAsString() const {
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using namespace Internals;
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if (_type == JSON_UNPARSED && _content.asString &&
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!strcmp("null", _content.asString))
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return NULL;
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if (_type == JSON_STRING || _type == JSON_UNPARSED) return _content.asString;
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return NULL;
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}
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template <typename T>
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inline T JsonVariant::variantAsFloat() const {
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using namespace Internals;
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switch (_type) {
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case JSON_UNDEFINED:
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return 0;
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case JSON_POSITIVE_INTEGER:
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case JSON_BOOLEAN:
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return static_cast<T>(_content.asInteger);
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case JSON_NEGATIVE_INTEGER:
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return -static_cast<T>(_content.asInteger);
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case JSON_STRING:
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case JSON_UNPARSED:
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return Polyfills::parseFloat<T>(_content.asString);
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default:
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return static_cast<T>(_content.asFloat);
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}
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}
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inline bool JsonVariant::variantIsBoolean() const {
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using namespace Internals;
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if (_type == JSON_BOOLEAN) return true;
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if (_type != JSON_UNPARSED || _content.asString == NULL) return false;
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return !strcmp(_content.asString, "true") ||
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!strcmp(_content.asString, "false");
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}
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inline bool JsonVariant::variantIsInteger() const {
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using namespace Internals;
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return _type == JSON_POSITIVE_INTEGER || _type == JSON_NEGATIVE_INTEGER ||
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(_type == JSON_UNPARSED && Polyfills::isInteger(_content.asString));
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}
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inline bool JsonVariant::variantIsFloat() const {
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using namespace Internals;
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return _type == JSON_FLOAT || _type == JSON_POSITIVE_INTEGER ||
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_type == JSON_NEGATIVE_INTEGER ||
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(_type == JSON_UNPARSED && Polyfills::isFloat(_content.asString));
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}
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#if ARDUINOJSON_ENABLE_STD_STREAM
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inline std::ostream &operator<<(std::ostream &os, const JsonVariant &source) {
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return source.printTo(os);
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}
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#endif
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} // namespace ArduinoJson
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