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Added RawJson() to insert pregenerated JSON portions (issue #259)

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This commit is contained in:
Benoit Blanchon
2016-04-16 16:15:01 +02:00
parent c77c3f33ef
commit a6724bd03f
11 changed files with 131 additions and 130 deletions
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1
CHANGELOG.md
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@@ -7,6 +7,7 @@ HEAD
* Added `JsonVariant::as<char*>()` as a synonym for `JsonVariant::as<const char*>()` (issue #257)
* Added example `JsonHttpClient` (issue #256)
* Added `JsonArray::copyTo()` and `JsonArray::copyFrom()` (issue #254)
* Added `RawJson()` to insert pregenerated JSON portions (issue #259)
v5.1.1
------

1
include/ArduinoJson/JsonObject.hpp
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@@ -71,6 +71,7 @@ class JsonObject : public Internals::JsonPrintable<JsonObject>,
// bool set(TKey key, float value);
// bool set(TKey key, double value);
// bool set(TKey key, const char* value);
// bool set(TKey key, RawJson value);
template <typename T>
FORCE_INLINE bool set(
JsonObjectKey key, T value,

83
include/ArduinoJson/JsonVariant.hpp
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@@ -13,8 +13,8 @@
#include "Internals/JsonPrintable.hpp"
#include "Internals/JsonVariantContent.hpp"
#include "Internals/JsonVariantType.hpp"
#include "Internals/Unparsed.hpp"
#include "JsonVariantBase.hpp"
#include "RawJson.hpp"
#include "TypeTraits/EnableIf.hpp"
#include "TypeTraits/IsFloatingPoint.hpp"
#include "TypeTraits/IsIntegral.hpp"
@@ -80,7 +80,7 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
FORCE_INLINE JsonVariant(const char *value);
// Create a JsonVariant containing an unparsed string
FORCE_INLINE JsonVariant(Internals::Unparsed value);
FORCE_INLINE JsonVariant(RawJson value);
// Create a JsonVariant containing a reference to an array.
FORCE_INLINE JsonVariant(JsonArray &array);
@@ -89,6 +89,7 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
FORCE_INLINE JsonVariant(JsonObject &object);
// Get the variant as the specified type.
//
// short as<short>() const;
// int as<int>() const;
// long as<long>() const;
@@ -97,6 +98,7 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
as() const {
return static_cast<T>(asInteger());
}
//
// double as<double>() const;
// float as<float>() const;
template <typename T>
@@ -105,6 +107,7 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
as() const {
return static_cast<T>(asFloat());
}
//
// const String as<String>() const;
template <typename T>
const typename TypeTraits::EnableIf<TypeTraits::IsSame<T, String>::value,
@@ -112,6 +115,7 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
as() const {
return toString();
}
//
// const char* as<const char*>() const;
// const char* as<char*>() const;
template <typename T>
@@ -121,6 +125,7 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
as() const {
return asString();
}
//
// const bool as<bool>() const
template <typename T>
const typename TypeTraits::EnableIf<TypeTraits::IsSame<T, bool>::value,
@@ -128,6 +133,7 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
as() const {
return asInteger() != 0;
}
//
// JsonArray& as<JsonArray> const;
// JsonArray& as<JsonArray&> const;
// JsonArray& as<const JsonArray&> const;
@@ -141,6 +147,7 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
as() const {
return asArray();
}
//
// JsonObject& as<JsonObject> const;
// JsonObject& as<JsonObject&> const;
// JsonObject& as<const JsonObject&> const;
@@ -157,8 +164,71 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
// Tells weither the variant has the specified type.
// Returns true if the variant has type type T, false otherwise.
//
// short as<short>() const;
// int as<int>() const;
// long as<long>() const;
template <typename T>
bool is() const;
const typename TypeTraits::EnableIf<TypeTraits::IsIntegral<T>::value,
bool>::type
is() const {
return isInteger();
}
//
// double is<double>() const;
// float is<float>() const;
template <typename T>
const typename TypeTraits::EnableIf<TypeTraits::IsFloatingPoint<T>::value,
bool>::type
is() const {
return isFloat();
}
//
// const bool is<bool>() const
template <typename T>
const typename TypeTraits::EnableIf<TypeTraits::IsSame<T, bool>::value,
bool>::type
is() const {
return isBoolean();
}
//
// bool is<const char*>() const;
// bool is<char*>() const;
template <typename T>
typename TypeTraits::EnableIf<TypeTraits::IsSame<T, const char *>::value ||
TypeTraits::IsSame<T, char *>::value,
bool>::type
is() const {
return isString();
}
//
// bool is<JsonArray> const;
// bool is<JsonArray&> const;
// bool is<const JsonArray&> const;
template <typename T>
typename TypeTraits::EnableIf<
TypeTraits::IsSame<
typename TypeTraits::RemoveConst<
typename TypeTraits::RemoveReference<T>::type>::type,
JsonArray>::value,
bool>::type
is() const {
return isArray();
}
//
// JsonObject& as<JsonObject> const;
// JsonObject& as<JsonObject&> const;
// JsonObject& as<const JsonObject&> const;
template <typename T>
typename TypeTraits::EnableIf<
TypeTraits::IsSame<
typename TypeTraits::RemoveConst<
typename TypeTraits::RemoveReference<T>::type>::type,
JsonObject>::value,
bool>::type
is() const {
return isObject();
}
// Serialize the variant to a JsonWriter
void writeTo(Internals::JsonWriter &writer) const;
@@ -175,6 +245,12 @@ class JsonVariant : public JsonVariantBase<JsonVariant> {
String toString() const;
Internals::JsonFloat asFloat() const;
Internals::JsonInteger asInteger() const;
bool isBoolean() const;
bool isFloat() const;
bool isInteger() const;
bool isArray() const { return _type == Internals::JSON_ARRAY; }
bool isObject() const { return _type == Internals::JSON_OBJECT; }
bool isString() const { return _type == Internals::JSON_STRING; }
// The current type of the variant
Internals::JsonVariantType _type;
@@ -199,6 +275,7 @@ struct JsonVariant::IsConstructibleFrom {
TypeTraits::IsSame<T, bool>::value ||
TypeTraits::IsSame<T, char *>::value ||
TypeTraits::IsSame<T, const char *>::value ||
TypeTraits::IsSame<T, RawJson>::value ||
TypeTraits::IsSame<T, JsonArray &>::value ||
TypeTraits::IsSame<T, const JsonArray &>::value ||
TypeTraits::IsSame<T, JsonArraySubscript &>::value ||

81
include/ArduinoJson/JsonVariant.ipp
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@@ -26,7 +26,7 @@ inline JsonVariant::JsonVariant(const char *value) {
_content.asString = value;
}
inline JsonVariant::JsonVariant(Internals::Unparsed value) {
inline JsonVariant::JsonVariant(RawJson value) {
_type = Internals::JSON_UNPARSED;
_content.asString = value;
}
@@ -46,85 +46,6 @@ inline T JsonVariant::invalid() {
return T();
}
template <typename T>
inline bool JsonVariant::is() const {
return false;
}
template <> // in .cpp
bool JsonVariant::is<signed long>() const;
template <> // in .cpp
bool JsonVariant::is<double>() const;
template <> // int .cpp
bool JsonVariant::is<bool>() const;
template <>
inline bool JsonVariant::is<char const *>() const {
return _type == Internals::JSON_STRING;
}
template <>
inline bool JsonVariant::is<float>() const {
return is<double>();
}
template <>
inline bool JsonVariant::is<JsonArray &>() const {
return _type == Internals::JSON_ARRAY;
}
template <>
inline bool JsonVariant::is<JsonArray const &>() const {
return _type == Internals::JSON_ARRAY;
}
template <>
inline bool JsonVariant::is<JsonObject &>() const {
return _type == Internals::JSON_OBJECT;
}
template <>
inline bool JsonVariant::is<JsonObject const &>() const {
return _type == Internals::JSON_OBJECT;
}
template <>
inline bool JsonVariant::is<signed char>() const {
return is<signed long>();
}
template <>
inline bool JsonVariant::is<signed int>() const {
return is<signed long>();
}
template <>
inline bool JsonVariant::is<signed short>() const {
return is<signed long>();
}
template <>
inline bool JsonVariant::is<unsigned char>() const {
return is<signed long>();
}
template <>
inline bool JsonVariant::is<unsigned int>() const {
return is<signed long>();
}
template <>
inline bool JsonVariant::is<unsigned long>() const {
return is<signed long>();
}
template <>
inline bool JsonVariant::is<unsigned short>() const {
return is<signed long>();
}
inline Internals::JsonInteger JsonVariant::asInteger() const {
if (_type == Internals::JSON_INTEGER || _type == Internals::JSON_BOOLEAN)
return _content.asInteger;

8
include/ArduinoJson/Internals/Unparsed.hpp → include/ArduinoJson/RawJson.hpp
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@@ -8,14 +8,14 @@
#pragma once
namespace ArduinoJson {
namespace Internals {
class Unparsed {
// A special type of data that can be used to insert pregenerated JSON portions.
class RawJson {
public:
explicit Unparsed(const char* str) : _str(str) {}
explicit RawJson(const char* str) : _str(str) {}
operator const char*() const { return _str; }
private:
const char* _str;
};
}
}

2
src/Internals/JsonParser.cpp
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@@ -195,7 +195,7 @@ bool JsonParser::parseStringTo(JsonVariant *destination) {
if (hasQuotes) {
*destination = value;
} else {
*destination = Unparsed(value);
*destination = RawJson(value);
}
return true;
}

9
src/JsonVariant.cpp
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@@ -47,8 +47,7 @@ String JsonVariant::toString() const {
return s;
}
template <>
bool JsonVariant::is<bool>() const {
bool JsonVariant::isBoolean() const {
if (_type == JSON_BOOLEAN) return true;
if (_type != JSON_UNPARSED || _content.asString == NULL) return false;
@@ -57,8 +56,7 @@ bool JsonVariant::is<bool>() const {
!strcmp(_content.asString, "false");
}
template <>
bool JsonVariant::is<signed long>() const {
bool JsonVariant::isInteger() const {
if (_type == JSON_INTEGER) return true;
if (_type != JSON_UNPARSED || _content.asString == NULL) return false;
@@ -70,8 +68,7 @@ bool JsonVariant::is<signed long>() const {
return *end == '\0' && errno == 0;
}
template <>
bool JsonVariant::is<double>() const {
bool JsonVariant::isFloat() const {
if (_type >= JSON_FLOAT_0_DECIMALS) return true;
if (_type != JSON_UNPARSED || _content.asString == NULL) return false;

4
test/Issue90.cpp
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@@ -14,13 +14,11 @@
#define SUITE Issue90
using namespace ArduinoJson::Internals;
static const char* superLong =
"12345678901234567890123456789012345678901234567890123456789012345678901234"
"5678901234567890123456789012345678901234567890123456789012345678901234567";
static const JsonVariant variant = Unparsed(superLong);
static const JsonVariant variant = RawJson(superLong);
TEST(SUITE, IsNotALong) { ASSERT_FALSE(variant.is<long>()); }

6
test/JsonArray_PrintTo_Tests.cpp
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@@ -96,6 +96,12 @@ TEST_F(JsonArray_PrintTo_Tests, TwoIntegers) {
outputMustBe("[1,2]");
}
TEST_F(JsonArray_PrintTo_Tests, RawJson) {
array.add(RawJson("{\"key\":\"value\"}"));
outputMustBe("[{\"key\":\"value\"}]");
}
TEST_F(JsonArray_PrintTo_Tests, OneIntegerOverCapacity) {
array.add(1);
array.add(2);

8
test/JsonObject_PrintTo_Tests.cpp
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@@ -8,8 +8,6 @@
#include <ArduinoJson.h>
#include <gtest/gtest.h>
using namespace ArduinoJson::Internals;
class JsonObject_PrintTo_Tests : public testing::Test {
public:
JsonObject_PrintTo_Tests() : _object(_jsonBuffer.createObject()) {}
@@ -75,6 +73,12 @@ TEST_F(JsonObject_PrintTo_Tests, TwoIntegers) {
outputMustBe("{\"a\":1,\"b\":2}");
}
TEST_F(JsonObject_PrintTo_Tests, RawJson) {
_object["a"] = RawJson("[1,2]");
_object.set("b", RawJson("[4,5]"));
outputMustBe("{\"a\":[1,2],\"b\":[4,5]}");
}
TEST_F(JsonObject_PrintTo_Tests, TwoDoublesFourDigits) {
_object["a"] = double_with_n_digits(3.14159265358979323846, 4);
_object.set("b", 2.71828182845904523536, 4);

58
test/JsonVariant_Is_Tests.cpp
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@@ -10,8 +10,6 @@
#define SUITE JsonVariant_Is_Tests
using namespace ArduinoJson::Internals;
template <typename TTo, typename TFrom>
void assertIsNot(TFrom value) {
JsonVariant variant = value;
@@ -76,37 +74,35 @@ TEST(SUITE, StringIsInt) { assertIsNot<int>("42"); }
TEST(SUITE, StringIsLong) { assertIsNot<long>("42"); }
TEST(SUITE, StringIsString) { assertIs<const char*>("42"); }
TEST(SUITE, UnparsedTrueIsArra) { assertIsNot<JsonArray&>(Unparsed("true")); }
TEST(SUITE, UnparsedTrueIsBool) { assertIs<bool>(Unparsed("true")); }
TEST(SUITE, UnparsedTrueIsDouble) { assertIsNot<double>(Unparsed("true")); }
TEST(SUITE, UnparsedTrueIsFloat) { assertIsNot<float>(Unparsed("true")); }
TEST(SUITE, UnparsedTrueIsInt) { assertIsNot<int>(Unparsed("true")); }
TEST(SUITE, UnparsedTrueIsLong) { assertIsNot<long>(Unparsed("true")); }
TEST(SUITE, UnparsedTrueIsString) {
assertIsNot<const char*>(Unparsed("true"));
}
TEST(SUITE, UnparsedTrueIsArra) { assertIsNot<JsonArray&>(RawJson("true")); }
TEST(SUITE, UnparsedTrueIsBool) { assertIs<bool>(RawJson("true")); }
TEST(SUITE, UnparsedTrueIsDouble) { assertIsNot<double>(RawJson("true")); }
TEST(SUITE, UnparsedTrueIsFloat) { assertIsNot<float>(RawJson("true")); }
TEST(SUITE, UnparsedTrueIsInt) { assertIsNot<int>(RawJson("true")); }
TEST(SUITE, UnparsedTrueIsLong) { assertIsNot<long>(RawJson("true")); }
TEST(SUITE, UnparsedTrueIsString) { assertIsNot<const char*>(RawJson("true")); }
TEST(SUITE, UnparsedFalseIsArra) { assertIsNot<JsonArray&>(Unparsed("false")); }
TEST(SUITE, UnparsedFalseIsBool) { assertIs<bool>(Unparsed("false")); }
TEST(SUITE, UnparsedFalseIsDouble) { assertIsNot<double>(Unparsed("false")); }
TEST(SUITE, UnparsedFalseIsFloat) { assertIsNot<float>(Unparsed("false")); }
TEST(SUITE, UnparsedFalseIsInt) { assertIsNot<int>(Unparsed("false")); }
TEST(SUITE, UnparsedFalseIsLong) { assertIsNot<long>(Unparsed("false")); }
TEST(SUITE, UnparsedFalseIsArra) { assertIsNot<JsonArray&>(RawJson("false")); }
TEST(SUITE, UnparsedFalseIsBool) { assertIs<bool>(RawJson("false")); }
TEST(SUITE, UnparsedFalseIsDouble) { assertIsNot<double>(RawJson("false")); }
TEST(SUITE, UnparsedFalseIsFloat) { assertIsNot<float>(RawJson("false")); }
TEST(SUITE, UnparsedFalseIsInt) { assertIsNot<int>(RawJson("false")); }
TEST(SUITE, UnparsedFalseIsLong) { assertIsNot<long>(RawJson("false")); }
TEST(SUITE, UnparsedFalseIsString) {
assertIsNot<const char*>(Unparsed("false"));
assertIsNot<const char*>(RawJson("false"));
}
TEST(SUITE, UnparsedIntIsArra) { assertIsNot<JsonArray&>(Unparsed("42")); }
TEST(SUITE, UnparsedIntIsBool) { assertIsNot<bool>(Unparsed("42")); }
TEST(SUITE, UnparsedIntIsDouble) { assertIsNot<double>(Unparsed("42")); }
TEST(SUITE, UnparsedIntIsFloat) { assertIsNot<float>(Unparsed("42")); }
TEST(SUITE, UnparsedIntIsInt) { assertIs<int>(Unparsed("42")); }
TEST(SUITE, UnparsedIntIsLong) { assertIs<long>(Unparsed("42")); }
TEST(SUITE, UnparsedIntIsString) { assertIsNot<const char*>(Unparsed("42")); }
TEST(SUITE, UnparsedIntIsArra) { assertIsNot<JsonArray&>(RawJson("42")); }
TEST(SUITE, UnparsedIntIsBool) { assertIsNot<bool>(RawJson("42")); }
TEST(SUITE, UnparsedIntIsDouble) { assertIsNot<double>(RawJson("42")); }
TEST(SUITE, UnparsedIntIsFloat) { assertIsNot<float>(RawJson("42")); }
TEST(SUITE, UnparsedIntIsInt) { assertIs<int>(RawJson("42")); }
TEST(SUITE, UnparsedIntIsLong) { assertIs<long>(RawJson("42")); }
TEST(SUITE, UnparsedIntIsString) { assertIsNot<const char*>(RawJson("42")); }
TEST(SUITE, UnparsedFloatIsBool) { assertIsNot<bool>(Unparsed("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsDouble) { assertIs<double>(Unparsed("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsFloat) { assertIs<float>(Unparsed("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsInt) { assertIsNot<int>(Unparsed("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsLong) { assertIsNot<long>(Unparsed("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsStr) { assertIsNot<const char*>(Unparsed("4.2")); }
TEST(SUITE, UnparsedFloatIsBool) { assertIsNot<bool>(RawJson("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsDouble) { assertIs<double>(RawJson("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsFloat) { assertIs<float>(RawJson("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsInt) { assertIsNot<int>(RawJson("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsLong) { assertIsNot<long>(RawJson("4.2e-10")); }
TEST(SUITE, UnparsedFloatIsStr) { assertIsNot<const char*>(RawJson("4.2")); }