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Add JsonVariant::link() (resolves #1343)

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This commit is contained in:
Benoit Blanchon
2022-04-27 15:06:58 +02:00
parent 5577d18377
commit 3d6c328a4f
35 changed files with 649 additions and 51 deletions
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1
CHANGELOG.md
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@ -4,6 +4,7 @@ ArduinoJson: change log
HEAD
----
* Add `JsonVariant::link()` (issue #1343)
* Fix `9.22337e+18 is outside the range of representable values of type 'long'`
v6.19.4 (2022-04-05)

8
extras/tests/Cpp11/nullptr.cpp
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@ -43,5 +43,13 @@ TEST_CASE("nullptr") {
variant.clear();
REQUIRE(variant.is<std::nullptr_t>() == true);
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
variant.link(doc2);
REQUIRE(variant.is<std::nullptr_t>() == false);
doc2.clear();
REQUIRE(variant.is<std::nullptr_t>() == true);
}
}

8
extras/tests/JsonDocument/ElementProxy.cpp
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@ -245,3 +245,11 @@ TEST_CASE("ElementProxy cast to JsonVariant") {
CHECK(doc.as<std::string>() == "[\"toto\"]");
}
TEST_CASE("ElementProxy::link()") {
StaticJsonDocument<1024> doc1, doc2;
doc1[0].link(doc2);
doc2["hello"] = "world";
CHECK(doc1.as<std::string>() == "[{\"hello\":\"world\"}]");
}

7
extras/tests/JsonDocument/MemberProxy.cpp
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@ -318,3 +318,10 @@ TEST_CASE("MemberProxy::createNestedObject(key)") {
CHECK(doc["status"]["weather"]["temp"] == 42);
}
TEST_CASE("MemberProxy::link()") {
StaticJsonDocument<1024> doc1, doc2;
doc1["obj"].link(doc2);
doc2["hello"] = "world";
CHECK(doc1.as<std::string>() == "{\"obj\":{\"hello\":\"world\"}}");
}

17
extras/tests/JsonDocument/size.cpp
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@ -25,4 +25,21 @@ TEST_CASE("JsonDocument::size()") {
REQUIRE(doc.size() == 2);
}
SECTION("linked array") {
StaticJsonDocument<128> doc2;
doc2.add(1);
doc2.add(2);
doc.as<JsonVariant>().link(doc2);
REQUIRE(doc.size() == 2);
}
SECTION("linked object") {
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
doc.as<JsonVariant>().link(doc2);
REQUIRE(doc.size() == 1);
}
}

1
extras/tests/JsonVariant/CMakeLists.txt
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@ -13,6 +13,7 @@ add_executable(JsonVariantTests
createNested.cpp
is.cpp
isnull.cpp
link.cpp
memoryUsage.cpp
misc.cpp
nesting.cpp

10
extras/tests/JsonVariant/add.cpp
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@ -43,4 +43,14 @@ TEST_CASE("JsonVariant::add()") {
REQUIRE(var.as<std::string>() == "{\"val\":123}");
}
SECTION("add to linked array") {
StaticJsonDocument<1024> doc2;
doc2.add(42);
var.link(doc2);
var.add(666); // no-op
CHECK(var.as<std::string>() == "[42]");
}
}

93
extras/tests/JsonVariant/as.cpp
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@ -267,4 +267,97 @@ TEST_CASE("JsonVariant::as()") {
REQUIRE(variant.as<MY_ENUM>() == ONE);
}
SECTION("linked object") {
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
variant.link(doc2);
SECTION("as<std::string>()") {
CHECK(variant.as<std::string>() == "{\"hello\":\"world\"}");
}
SECTION("as<JsonArray>()") {
JsonArray a = variant.as<JsonArray>();
CHECK(a.isNull() == true);
}
SECTION("as<JsonObject>()") {
JsonObject o = variant.as<JsonObject>();
CHECK(o.isNull() == true);
}
SECTION("as<JsonObjectConst>()") {
JsonObjectConst o = variant.as<JsonObjectConst>();
CHECK(o.isNull() == false);
CHECK(o.size() == 1);
CHECK(o["hello"] == "world");
}
}
SECTION("linked array") {
StaticJsonDocument<128> doc2;
doc2.add("hello");
doc2.add("world");
variant.link(doc2);
SECTION("as<std::string>()") {
CHECK(variant.as<std::string>() == "[\"hello\",\"world\"]");
}
SECTION("as<JsonArray>()") {
JsonArray a = variant.as<JsonArray>();
CHECK(a.isNull() == true);
}
SECTION("as<JsonArrayConst>()") {
JsonArrayConst a = variant.as<JsonArrayConst>();
CHECK(a.isNull() == false);
CHECK(a.size() == 2);
CHECK(a[0] == "hello");
CHECK(a[1] == "world");
}
SECTION("as<JsonObject>()") {
JsonObject o = variant.as<JsonObject>();
CHECK(o.isNull() == true);
}
}
SECTION("linked int") {
StaticJsonDocument<128> doc2;
doc2.set(42);
variant.link(doc2);
CHECK(variant.as<int>() == 42);
CHECK(variant.as<double>() == 42.0);
}
SECTION("linked double") {
StaticJsonDocument<128> doc2;
doc2.set(42.0);
variant.link(doc2);
CHECK(variant.as<int>() == 42);
CHECK(variant.as<double>() == 42.0);
}
SECTION("linked string") {
StaticJsonDocument<128> doc2;
doc2.set("hello");
variant.link(doc2);
CHECK(variant.as<std::string>() == "hello");
}
SECTION("linked bool") {
StaticJsonDocument<128> doc2;
variant.link(doc2);
doc2.set(true);
CHECK(variant.as<bool>() == true);
doc2.set(false);
CHECK(variant.as<bool>() == false);
}
}

11
extras/tests/JsonVariant/clear.cpp
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@ -23,4 +23,15 @@ TEST_CASE("JsonVariant::clear()") {
REQUIRE(var.isNull() == true);
}
SECTION("doesn't alter linked object") {
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
var.link(doc2);
var.clear();
CHECK(var.isNull() == true);
CHECK(doc2.as<std::string>() == "{\"hello\":\"world\"}");
}
}

29
extras/tests/JsonVariant/compare.cpp
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@ -34,6 +34,20 @@ TEST_CASE("Compare JsonVariant with value") {
CHECK_FALSE(a < b);
CHECK_FALSE(a > b);
}
SECTION("linked 42 vs 42") {
StaticJsonDocument<128> doc2;
doc2.set(42);
a.link(doc2);
int b = 42;
CHECK(a == b);
CHECK(a <= b);
CHECK(a >= b);
CHECK_FALSE(a != b);
CHECK_FALSE(a < b);
CHECK_FALSE(a > b);
}
}
TEST_CASE("Compare JsonVariant with JsonVariant") {
@ -313,4 +327,19 @@ TEST_CASE("Compare JsonVariant with JsonVariant") {
CHECK_FALSE(a > b);
CHECK_FALSE(a >= b);
}
SECTION("linked 42 vs link 42") {
StaticJsonDocument<128> doc2, doc3;
doc2.set(42);
doc3.set(42);
a.link(doc2);
b.link(doc3);
CHECK(a == b);
CHECK(a <= b);
CHECK(a >= b);
CHECK_FALSE(a != b);
CHECK_FALSE(a < b);
CHECK_FALSE(a > b);
}
}

13
extras/tests/JsonVariant/containsKey.cpp
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@ -12,19 +12,28 @@ TEST_CASE("JsonVariant::containsKey()") {
DynamicJsonDocument doc(4096);
JsonVariant var = doc.to<JsonVariant>();
SECTION("containsKey(const char*) returns true") {
SECTION("containsKey(const char*)") {
var["hello"] = "world";
REQUIRE(var.containsKey("hello") == true);
REQUIRE(var.containsKey("world") == false);
}
SECTION("containsKey(std::string) returns true") {
SECTION("containsKey(std::string)") {
var["hello"] = "world";
REQUIRE(var.containsKey(std::string("hello")) == true);
REQUIRE(var.containsKey(std::string("world")) == false);
}
SECTION("linked object") {
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
var.link(doc2);
CHECK(var.containsKey("hello") == true);
CHECK(var.containsKey("world") == false);
}
}
TEST_CASE("JsonVariantConst::containsKey()") {

10
extras/tests/JsonVariant/copy.cpp
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@ -84,6 +84,16 @@ TEST_CASE("JsonVariant::set(JsonVariant)") {
REQUIRE(doc2.memoryUsage() == JSON_STRING_SIZE(7));
}
SECTION("stores linked object by pointer") {
StaticJsonDocument<128> doc3;
doc3["hello"] = "world";
var1.link(doc3);
var2.set(var1);
REQUIRE(doc1.memoryUsage() == 0);
REQUIRE(doc2.memoryUsage() == 0);
}
SECTION("destination is unbound") {
JsonVariant unboundVariant;

44
extras/tests/JsonVariant/createNested.cpp
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@ -18,6 +18,17 @@ TEST_CASE("JsonVariant::createNestedObject()") {
REQUIRE(variant[0]["value"] == 42);
REQUIRE(obj.isNull() == false);
}
SECTION("does nothing on linked array") {
StaticJsonDocument<128> doc2;
doc2[0] = 42;
variant.link(doc2);
variant.createNestedObject();
CHECK(variant.size() == 1);
CHECK(variant[0] == 42);
}
}
TEST_CASE("JsonVariant::createNestedArray()") {
@ -30,6 +41,17 @@ TEST_CASE("JsonVariant::createNestedArray()") {
REQUIRE(variant.is<JsonArray>() == true);
REQUIRE(arr.isNull() == false);
}
SECTION("does nothing on linked array") {
StaticJsonDocument<128> doc2;
doc2[0] = 42;
variant.link(doc2);
variant.createNestedArray();
CHECK(variant.size() == 1);
CHECK(variant[0] == 42);
}
}
TEST_CASE("JsonVariant::createNestedObject(key)") {
@ -43,6 +65,17 @@ TEST_CASE("JsonVariant::createNestedObject(key)") {
REQUIRE(variant.is<JsonObject>() == true);
REQUIRE(variant["weather"]["temp"] == 42);
}
SECTION("does nothing on linked object") {
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
variant.link(doc2);
variant.createNestedObject("weather");
CHECK(variant.size() == 1);
CHECK(variant["hello"] == "world");
}
}
TEST_CASE("JsonVariant::createNestedArray(key)") {
@ -55,4 +88,15 @@ TEST_CASE("JsonVariant::createNestedArray(key)") {
REQUIRE(variant.is<JsonObject>() == true);
REQUIRE(arr.isNull() == false);
}
SECTION("does nothing on linked object") {
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
variant.link(doc2);
variant.createNestedArray("items");
CHECK(variant.size() == 1);
CHECK(variant["hello"] == "world");
}
}

110
extras/tests/JsonVariant/is.cpp
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@ -144,6 +144,24 @@ TEST_CASE("JsonVariant::is<T>()") {
CHECK(variant.is<MYENUM2>() == false);
}
SECTION("linked array") {
StaticJsonDocument<1024> doc2;
doc2[0] = "world";
variant.link(doc2);
CHECK(variant.is<JsonArray>() == false);
CHECK(variant.is<JsonArrayConst>() == true);
CHECK(variant.is<JsonVariant>() == true);
CHECK(variant.is<JsonVariantConst>() == true);
CHECK(variant.is<JsonObject>() == false);
CHECK(variant.is<JsonObjectConst>() == false);
CHECK(variant.is<int>() == false);
CHECK(variant.is<float>() == false);
CHECK(variant.is<bool>() == false);
CHECK(variant.is<const char *>() == false);
CHECK(variant.is<MYENUM2>() == false);
}
SECTION("JsonObject") {
variant.to<JsonObject>();
@ -161,6 +179,44 @@ TEST_CASE("JsonVariant::is<T>()") {
CHECK(variant.is<JsonVariant>() == true);
CHECK(variant.is<JsonVariantConst>() == true);
}
SECTION("linked object") {
StaticJsonDocument<1024> doc2;
doc2["hello"] = "world";
variant.link(doc2);
CHECK(variant.is<JsonObject>() == false);
CHECK(variant.is<JsonObjectConst>() == true);
CHECK(variant.is<JsonVariant>() == true);
CHECK(variant.is<JsonVariantConst>() == true);
CHECK(variant.is<JsonArray>() == false);
CHECK(variant.is<JsonArrayConst>() == false);
CHECK(variant.is<int>() == false);
CHECK(variant.is<float>() == false);
CHECK(variant.is<bool>() == false);
CHECK(variant.is<const char *>() == false);
CHECK(variant.is<MYENUM2>() == false);
CHECK(variant.is<JsonVariant>() == true);
CHECK(variant.is<JsonVariantConst>() == true);
}
SECTION("linked int") {
StaticJsonDocument<1024> doc2;
doc2.set(42);
variant.link(doc2);
CHECK(variant.is<JsonObjectConst>() == false);
CHECK(variant.is<JsonVariantConst>() == true);
CHECK(variant.is<JsonObject>() == false);
CHECK(variant.is<JsonVariant>() == true);
CHECK(variant.is<JsonArray>() == false);
CHECK(variant.is<JsonArrayConst>() == false);
CHECK(variant.is<int>() == true);
CHECK(variant.is<float>() == true);
CHECK(variant.is<bool>() == false);
CHECK(variant.is<const char *>() == false);
CHECK(variant.is<MYENUM2>() == true);
}
}
TEST_CASE("JsonVariantConst::is<T>()") {
@ -316,4 +372,58 @@ TEST_CASE("JsonVariantConst::is<T>()") {
CHECK(cvariant.is<const char *>() == false);
CHECK(cvariant.is<MYENUM2>() == false);
}
SECTION("linked array") {
StaticJsonDocument<1024> doc2;
doc2[0] = "world";
variant.link(doc2);
CHECK(cvariant.is<JsonArrayConst>() == true);
CHECK(cvariant.is<JsonVariantConst>() == true);
CHECK(cvariant.is<JsonArray>() == false);
CHECK(cvariant.is<JsonVariant>() == false);
CHECK(cvariant.is<JsonObject>() == false);
CHECK(cvariant.is<JsonObjectConst>() == false);
CHECK(cvariant.is<int>() == false);
CHECK(cvariant.is<float>() == false);
CHECK(cvariant.is<bool>() == false);
CHECK(cvariant.is<const char *>() == false);
CHECK(cvariant.is<MYENUM2>() == false);
}
SECTION("linked object") {
StaticJsonDocument<1024> doc2;
doc2["hello"] = "world";
variant.link(doc2);
CHECK(cvariant.is<JsonObjectConst>() == true);
CHECK(cvariant.is<JsonVariantConst>() == true);
CHECK(cvariant.is<JsonObject>() == false);
CHECK(cvariant.is<JsonVariant>() == false);
CHECK(cvariant.is<JsonArray>() == false);
CHECK(cvariant.is<JsonArrayConst>() == false);
CHECK(cvariant.is<int>() == false);
CHECK(cvariant.is<float>() == false);
CHECK(cvariant.is<bool>() == false);
CHECK(cvariant.is<const char *>() == false);
CHECK(cvariant.is<MYENUM2>() == false);
}
SECTION("linked int") {
StaticJsonDocument<1024> doc2;
doc2.set(42);
variant.link(doc2);
CHECK(cvariant.is<JsonObjectConst>() == false);
CHECK(cvariant.is<JsonVariantConst>() == true);
CHECK(cvariant.is<JsonObject>() == false);
CHECK(cvariant.is<JsonVariant>() == false);
CHECK(cvariant.is<JsonArray>() == false);
CHECK(cvariant.is<JsonArrayConst>() == false);
CHECK(cvariant.is<int>() == true);
CHECK(cvariant.is<float>() == true);
CHECK(cvariant.is<bool>() == false);
CHECK(cvariant.is<const char *>() == false);
CHECK(cvariant.is<MYENUM2>() == true);
}
}

35
extras/tests/JsonVariant/isnull.cpp
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@ -9,17 +9,17 @@ TEST_CASE("JsonVariant::isNull()") {
DynamicJsonDocument doc(4096);
JsonVariant variant = doc.to<JsonVariant>();
SECTION("return true when Undefined") {
SECTION("returns true when Undefined") {
REQUIRE(variant.isNull() == true);
}
SECTION("return false when Integer") {
SECTION("returns false when Integer") {
variant.set(42);
REQUIRE(variant.isNull() == false);
}
SECTION("return false when EmptyArray") {
SECTION("returns false when EmptyArray") {
DynamicJsonDocument doc2(4096);
JsonArray array = doc2.to<JsonArray>();
@ -27,7 +27,7 @@ TEST_CASE("JsonVariant::isNull()") {
REQUIRE(variant.isNull() == false);
}
SECTION("return false when EmptyObject") {
SECTION("returns false when EmptyObject") {
DynamicJsonDocument doc2(4096);
JsonObject obj = doc2.to<JsonObject>();
@ -35,41 +35,54 @@ TEST_CASE("JsonVariant::isNull()") {
REQUIRE(variant.isNull() == false);
}
SECTION("return true after set(JsonArray())") {
SECTION("returns true after set(JsonArray())") {
variant.set(JsonArray());
REQUIRE(variant.isNull() == true);
}
SECTION("return true after set(JsonObject())") {
SECTION("returns true after set(JsonObject())") {
variant.set(JsonObject());
REQUIRE(variant.isNull() == true);
}
SECTION("return false after set('hello')") {
SECTION("returns false after set('hello')") {
variant.set("hello");
REQUIRE(variant.isNull() == false);
}
SECTION("return true after set((char*)0)") {
SECTION("returns true after set((char*)0)") {
variant.set(static_cast<char*>(0));
REQUIRE(variant.isNull() == true);
}
SECTION("return true after set((const char*)0)") {
SECTION("returns true after set((const char*)0)") {
variant.set(static_cast<const char*>(0));
REQUIRE(variant.isNull() == true);
}
SECTION("return true after set(serialized((char*)0))") {
SECTION("returns true after set(serialized((char*)0))") {
variant.set(serialized(static_cast<char*>(0)));
REQUIRE(variant.isNull() == true);
}
SECTION("return true after set(serialized((const char*)0))") {
SECTION("returns true after set(serialized((const char*)0))") {
variant.set(serialized(static_cast<const char*>(0)));
REQUIRE(variant.isNull() == true);
}
SECTION("returns true for a linked null") {
StaticJsonDocument<128> doc2;
variant.link(doc2);
CHECK(variant.isNull() == true);
}
SECTION("returns false for a linked array") {
StaticJsonDocument<128> doc2;
doc2[0] = 42;
variant.link(doc2);
CHECK(variant.isNull() == false);
}
SECTION("works with JsonVariantConst") {
variant.set(42);

77
extras/tests/JsonVariant/link.cpp Normal file
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@ -0,0 +1,77 @@
// ArduinoJson - https://arduinojson.org
// Copyright © 2014-2022, Benoit BLANCHON
// MIT License
#include <ArduinoJson.h>
#include <catch.hpp>
TEST_CASE("JsonVariant::link()") {
StaticJsonDocument<1024> doc1, doc2;
JsonVariant variant = doc1.to<JsonVariant>();
SECTION("JsonVariant::link(JsonDocument&)") {
doc2["hello"] = "world";
variant.link(doc2);
CHECK(variant.as<std::string>() == "{\"hello\":\"world\"}");
CHECK(variant.memoryUsage() == 0);
// altering the linked document should change the result
doc2["hello"] = "WORLD!";
CHECK(variant.as<std::string>() == "{\"hello\":\"WORLD!\"}");
}
SECTION("JsonVariant::link(MemberProxy)") {
doc2["obj"]["hello"] = "world";
variant.link(doc2["obj"]);
CHECK(variant.as<std::string>() == "{\"hello\":\"world\"}");
CHECK(variant.memoryUsage() == 0);
// altering the linked document should change the result
doc2["obj"]["hello"] = "WORLD!";
CHECK(variant.as<std::string>() == "{\"hello\":\"WORLD!\"}");
}
SECTION("JsonVariant::link(ElementProxy)") {
doc2[0]["hello"] = "world";
variant.link(doc2[0]);
CHECK(variant.as<std::string>() == "{\"hello\":\"world\"}");
CHECK(variant.memoryUsage() == 0);
// altering the linked document should change the result
doc2[0]["hello"] = "WORLD!";
CHECK(variant.as<std::string>() == "{\"hello\":\"WORLD!\"}");
}
SECTION("target is unbound") {
JsonVariant unbound;
variant["hello"] = "world";
variant.link(unbound);
CHECK(variant.isUnbound() == false);
CHECK(variant.isNull() == true);
CHECK(variant.memoryUsage() == 0);
CHECK(variant.size() == 0);
}
SECTION("variant is unbound") {
JsonVariant unbound;
doc2["hello"] = "world";
unbound.link(doc2);
CHECK(unbound.isUnbound() == true);
CHECK(unbound.isNull() == true);
CHECK(unbound.memoryUsage() == 0);
CHECK(unbound.size() == 0);
}
}

8
extras/tests/JsonVariant/memoryUsage.cpp
View File

@ -38,4 +38,12 @@ TEST_CASE("JsonVariant::memoryUsage()") {
REQUIRE(var.memoryUsage() == 6);
REQUIRE(var.memoryUsage() == doc.memoryUsage());
}
SECTION("ignore size of linked document") {
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
var.link(doc2);
CHECK(var.memoryUsage() == 0);
CHECK(var.memoryUsage() == doc.memoryUsage());
}
}

8
extras/tests/JsonVariant/nesting.cpp
View File

@ -28,4 +28,12 @@ TEST_CASE("JsonVariant::nesting()") {
var.to<JsonArray>();
REQUIRE(var.nesting() == 1);
}
SECTION("returns depth of linked array") {
StaticJsonDocument<128> doc2;
doc2[0][0] = 42;
var.link(doc2);
CHECK(var.nesting() == 2);
}
}

8
extras/tests/JsonVariant/or.cpp
View File

@ -156,4 +156,12 @@ TEST_CASE("JsonVariant::operator|()") {
int result = variant | 42;
REQUIRE(result == 42);
}
SECTION("linked int | int") {
StaticJsonDocument<128> doc2;
doc2.set(42);
variant.link(doc2);
int result = variant | 666;
CHECK(result == 42);
}
}

20
extras/tests/JsonVariant/remove.cpp
View File

@ -39,4 +39,24 @@ TEST_CASE("JsonVariant::remove()") {
REQUIRE(var.as<std::string>() == "{\"a\":1}");
}
SECTION("linked array") {
StaticJsonDocument<128> doc2;
doc2[0] = 42;
var.link(doc2);
var.remove(0);
CHECK(var.as<std::string>() == "[42]");
}
SECTION("linked object") {
StaticJsonDocument<128> doc2;
doc2["hello"] = "world";
var.link(doc2);
var.remove("hello");
CHECK(var.as<std::string>() == "{\"hello\":\"world\"}");
}
}

9
extras/tests/JsonVariant/size.cpp
View File

@ -41,4 +41,13 @@ TEST_CASE("JsonVariant::size()") {
CHECK(variant.size() == 1);
}
SECTION("linked array") {
StaticJsonDocument<1024> doc2;
doc2.add(1);
doc2.add(2);
variant.link(doc2);
CHECK(variant.size() == 2);
}
}

54
extras/tests/JsonVariant/subscript.cpp
View File

@ -129,6 +129,44 @@ TEST_CASE("JsonVariant::operator[]") {
REQUIRE(std::string("world") == variant[vla]);
}
#endif
SECTION("get value from linked object") {
StaticJsonDocument<1024> doc2;
doc2["hello"] = "world";
var.link(doc2);
CHECK(var["hello"].as<std::string>() == "world");
}
SECTION("set value to linked object") {
StaticJsonDocument<1024> doc2;
doc2["hello"] = "world";
var.link(doc2);
var["tutu"] = "toto"; // no-op
CHECK(doc.as<std::string>() == "{\"hello\":\"world\"}");
CHECK(doc2.as<std::string>() == "{\"hello\":\"world\"}");
}
SECTION("get value from linked array") {
StaticJsonDocument<1024> doc2;
doc2.add(42);
var.link(doc2);
CHECK(var[0].as<int>() == 42);
}
SECTION("set value to linked array") {
StaticJsonDocument<1024> doc2;
doc2.add(42);
var.link(doc2);
var[0] = 666; // no-op
CHECK(doc.as<std::string>() == "[42]");
CHECK(doc2.as<std::string>() == "[42]");
}
}
TEST_CASE("JsonVariantConst::operator[]") {
@ -201,4 +239,20 @@ TEST_CASE("JsonVariantConst::operator[]") {
REQUIRE(var.is<JsonObject>() == false);
REQUIRE(value == 0);
}
SECTION("get value from linked object") {
StaticJsonDocument<1024> doc2;
doc2["hello"] = "world";
var.link(doc2);
CHECK(cvar["hello"].as<std::string>() == "world");
}
SECTION("get value from linked array") {
StaticJsonDocument<1024> doc2;
doc2.add(42);
var.link(doc2);
CHECK(cvar[0].as<int>() == 42);
}
}

2
src/ArduinoJson/Array/ArrayRef.hpp
View File

@ -211,7 +211,7 @@ struct Converter<ArrayConstRef> {
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isArray();
return data && data->resolve()->isArray();
}
};

4
src/ArduinoJson/Array/ElementProxy.hpp
View File

@ -109,6 +109,10 @@ class ElementProxy : public VariantOperators<ElementProxy<TArray> >,
return getOrAddUpstreamElement().template to<T>();
}
FORCE_INLINE void link(VariantConstRef value) const {
getOrAddUpstreamElement().link(value);
}
// Replaces the value
//
// bool set(const TValue&)

2
src/ArduinoJson/Document/JsonDocument.hpp
View File

@ -68,7 +68,7 @@ class JsonDocument : public Visitable,
}
size_t size() const {
return _data.size();
return _data.resolve()->size();
}
bool set(const JsonDocument& src) {

4
src/ArduinoJson/Json/JsonSerializer.hpp
View File

@ -25,7 +25,7 @@ class JsonSerializer : public Visitor<size_t> {
VariantSlot *slot = array.head();
while (slot != 0) {
slot->data()->accept(*this);
slot->data()->resolve()->accept(*this);
slot = slot->next();
if (slot == 0)
@ -46,7 +46,7 @@ class JsonSerializer : public Visitor<size_t> {
while (slot != 0) {
_formatter.writeString(slot->key());
write(':');
slot->data()->accept(*this);
slot->data()->resolve()->accept(*this);
slot = slot->next();
if (slot == 0)

4
src/ArduinoJson/Json/PrettyJsonSerializer.hpp
View File

@ -25,7 +25,7 @@ class PrettyJsonSerializer : public JsonSerializer<TWriter> {
_nesting++;
while (slot != 0) {
indent();
slot->data()->accept(*this);
slot->data()->resolve()->accept(*this);
slot = slot->next();
base::write(slot ? ",\r\n" : "\r\n");
@ -48,7 +48,7 @@ class PrettyJsonSerializer : public JsonSerializer<TWriter> {
indent();
base::visitString(slot->key());
base::write(": ");
slot->data()->accept(*this);
slot->data()->resolve()->accept(*this);
slot = slot->next();
base::write(slot ? ",\r\n" : "\r\n");

4
src/ArduinoJson/MsgPack/MsgPackSerializer.hpp
View File

@ -56,7 +56,7 @@ class MsgPackSerializer : public Visitor<size_t> {
writeInteger(uint32_t(n));
}
for (VariantSlot* slot = array.head(); slot; slot = slot->next()) {
slot->data()->accept(*this);
slot->data()->resolve()->accept(*this);
}
return bytesWritten();
}
@ -74,7 +74,7 @@ class MsgPackSerializer : public Visitor<size_t> {
}
for (VariantSlot* slot = object.head(); slot; slot = slot->next()) {
visitString(slot->key());
slot->data()->accept(*this);
slot->data()->resolve()->accept(*this);
}
return bytesWritten();
}

4
src/ArduinoJson/Object/MemberProxy.hpp
View File

@ -135,6 +135,10 @@ class MemberProxy : public VariantOperators<MemberProxy<TObject, TStringRef> >,
getUpstreamMember().remove(key);
}
FORCE_INLINE void link(VariantConstRef value) {
getOrAddUpstreamMember().link(value);
}
template <typename TValue>
FORCE_INLINE typename VariantTo<TValue>::type to() {
return getOrAddUpstreamMember().template to<TValue>();

2
src/ArduinoJson/Object/ObjectRef.hpp
View File

@ -278,7 +278,7 @@ struct Converter<ObjectConstRef> {
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isObject();
return data && data->resolve()->isObject();
}
};

26
src/ArduinoJson/Variant/ConverterImpl.hpp
View File

@ -48,12 +48,12 @@ struct Converter<
static T fromJson(VariantConstRef src) {
ARDUINOJSON_ASSERT_INTEGER_TYPE_IS_SUPPORTED(T);
const VariantData* data = getData(src);
return data ? data->asIntegral<T>() : T();
return data ? data->resolve()->asIntegral<T>() : T();
}
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isInteger<T>();
return data && data->resolve()->isInteger<T>();
}
};
@ -65,12 +65,12 @@ struct Converter<T, typename enable_if<is_enum<T>::value>::type> {
static T fromJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data ? static_cast<T>(data->asIntegral<int>()) : T();
return data ? static_cast<T>(data->resolve()->asIntegral<int>()) : T();
}
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isInteger<int>();
return data && data->resolve()->isInteger<int>();
}
};
@ -84,12 +84,12 @@ struct Converter<bool> {
static bool fromJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data ? data->asBoolean() : false;
return data ? data->resolve()->asBoolean() : false;
}
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isBoolean();
return data && data->resolve()->isBoolean();
}
};
@ -103,12 +103,12 @@ struct Converter<T, typename enable_if<is_floating_point<T>::value>::type> {
static T fromJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data ? data->asFloat<T>() : false;
return data ? data->resolve()->asFloat<T>() : 0;
}
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isFloat();
return data && data->resolve()->isFloat();
}
};
@ -121,12 +121,12 @@ struct Converter<const char*> {
static const char* fromJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data ? data->asString().c_str() : 0;
return data ? data->resolve()->asString().c_str() : 0;
}
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isString();
return data && data->resolve()->isString();
}
};
@ -139,12 +139,12 @@ struct Converter<String> {
static String fromJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data ? data->asString() : 0;
return data ? data->resolve()->asString() : 0;
}
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data && data->isString();
return data && data->resolve()->isString();
}
};
@ -192,7 +192,7 @@ struct Converter<decltype(nullptr)> {
}
static bool checkJson(VariantConstRef src) {
const VariantData* data = getData(src);
return data == 0 || data->isNull();
return data == 0 || data->resolve()->isNull();
}
};

3
src/ArduinoJson/Variant/VariantContent.hpp
View File

@ -31,6 +31,8 @@ enum {
VALUE_IS_SIGNED_INTEGER = 0x0A,
VALUE_IS_FLOAT = 0x0C,
VALUE_IS_POINTER = 0x10,
COLLECTION_MASK = 0x60,
VALUE_IS_OBJECT = 0x20,
VALUE_IS_ARRAY = 0x40,
@ -49,6 +51,7 @@ union VariantContent {
UInt asUnsignedInteger;
Integer asSignedInteger;
CollectionData asCollection;
const class VariantData *asPointer;
struct {
const char *data;
size_t size;

22
src/ArduinoJson/Variant/VariantData.hpp
View File

@ -83,6 +83,12 @@ class VariantData {
bool asBoolean() const;
const VariantData *resolve() const {
if (isPointer())
return _content.asPointer->resolve();
return this;
}
CollectionData *asArray() {
return isArray() ? &_content.asCollection : 0;
}
@ -117,6 +123,10 @@ class VariantData {
return (_flags & COLLECTION_MASK) != 0;
}
bool isPointer() const {
return type() == VALUE_IS_POINTER;
}
template <typename T>
bool isInteger() const {
switch (type()) {
@ -212,6 +222,12 @@ class VariantData {
setType(VALUE_IS_NULL);
}
void setPointer(const VariantData *p) {
ARDUINOJSON_ASSERT(p);
setType(VALUE_IS_POINTER);
_content.asPointer = p;
}
void setString(String s) {
ARDUINOJSON_ASSERT(s);
if (s.isLinked())
@ -262,7 +278,8 @@ class VariantData {
}
VariantData *getElement(size_t index) const {
return isArray() ? _content.asCollection.getElement(index) : 0;
const CollectionData *col = asArray();
return col ? col->getElement(index) : 0;
}
VariantData *getOrAddElement(size_t index, MemoryPool *pool) {
@ -275,7 +292,8 @@ class VariantData {
template <typename TAdaptedString>
VariantData *getMember(TAdaptedString key) const {
return isObject() ? _content.asCollection.getMember(key) : 0;
const CollectionData *col = asObject();
return col ? col->getMember(key) : 0;
}
template <typename TAdaptedString, typename TStoragePolicy>

12
src/ArduinoJson/Variant/VariantFunctions.hpp
View File

@ -15,17 +15,17 @@ template <typename TVisitor>
inline typename TVisitor::result_type variantAccept(const VariantData *var,
TVisitor &visitor) {
if (var != 0)
return var->accept(visitor);
return var->resolve()->accept(visitor);
else
return visitor.visitNull();
}
inline const CollectionData *variantAsArray(const VariantData *var) {
return var != 0 ? var->asArray() : 0;
return var != 0 ? var->resolve()->asArray() : 0;
}
inline const CollectionData *variantAsObject(const VariantData *var) {
return var != 0 ? var->asObject() : 0;
return var != 0 ? var->resolve()->asObject() : 0;
}
inline CollectionData *variantAsObject(VariantData *var) {
@ -56,7 +56,7 @@ inline bool variantSetString(VariantData *var, TAdaptedString value,
}
inline size_t variantSize(const VariantData *var) {
return var != 0 ? var->size() : 0;
return var != 0 ? var->resolve()->size() : 0;
}
inline CollectionData *variantToArray(VariantData *var) {
@ -102,14 +102,14 @@ NO_INLINE VariantData *variantGetOrAddMember(VariantData *var,
}
inline bool variantIsNull(const VariantData *var) {
return var == 0 || var->isNull();
return var == 0 || var->resolve()->isNull();
}
inline size_t variantNesting(const VariantData *var) {
if (!var)
return 0;
const CollectionData *collection = var->asCollection();
const CollectionData *collection = var->resolve()->asCollection();
if (!collection)
return 0;

30
src/ArduinoJson/Variant/VariantRef.hpp
View File

@ -124,7 +124,8 @@ class VariantConstRef : public VariantRefBase<const VariantData>,
}
FORCE_INLINE VariantConstRef getElementConst(size_t index) const {
return VariantConstRef(_data != 0 ? _data->getElement(index) : 0);
return VariantConstRef(_data != 0 ? _data->resolve()->getElement(index)
: 0);
}
FORCE_INLINE VariantConstRef operator[](size_t index) const {
@ -135,8 +136,8 @@ class VariantConstRef : public VariantRefBase<const VariantData>,
// getMemberConst(const String&) const
template <typename TString>
FORCE_INLINE VariantConstRef getMemberConst(const TString &key) const {
return VariantConstRef(
objectGetMember(variantAsObject(_data), adaptString(key)));
return VariantConstRef(_data ? _data->resolve()->getMember(adaptString(key))
: 0);
}
// getMemberConst(char*) const
@ -144,8 +145,8 @@ class VariantConstRef : public VariantRefBase<const VariantData>,
// getMemberConst(const __FlashStringHelper*) const
template <typename TChar>
FORCE_INLINE VariantConstRef getMemberConst(TChar *key) const {
const CollectionData *obj = variantAsObject(_data);
return VariantConstRef(obj ? obj->getMember(adaptString(key)) : 0);
return VariantConstRef(_data ? _data->resolve()->getMember(adaptString(key))
: 0);
}
// operator[](const std::string&) const
@ -293,7 +294,8 @@ class VariantRef : public VariantRefBase<VariantData>,
}
FORCE_INLINE VariantConstRef getElementConst(size_t index) const {
return VariantConstRef(_data != 0 ? _data->getElement(index) : 0);
return VariantConstRef(_data != 0 ? _data->resolve()->getElement(index)
: 0);
}
FORCE_INLINE VariantRef getOrAddElement(size_t index) const {
@ -321,7 +323,8 @@ class VariantRef : public VariantRefBase<VariantData>,
// getMemberConst(const __FlashStringHelper*) const
template <typename TChar>
FORCE_INLINE VariantConstRef getMemberConst(TChar *key) const {
return VariantConstRef(_data ? _data->getMember(adaptString(key)) : 0);
return VariantConstRef(_data ? _data->resolve()->getMember(adaptString(key))
: 0);
}
// getMemberConst(const std::string&) const
@ -330,7 +333,8 @@ class VariantRef : public VariantRefBase<VariantData>,
FORCE_INLINE
typename enable_if<IsString<TString>::value, VariantConstRef>::type
getMemberConst(const TString &key) const {
return VariantConstRef(_data ? _data->getMember(adaptString(key)) : 0);
return VariantConstRef(_data ? _data->resolve()->getMember(adaptString(key))
: 0);
}
// getOrAddMember(char*) const
@ -370,6 +374,16 @@ class VariantRef : public VariantRefBase<VariantData>,
_data->remove(adaptString(key));
}
inline void link(VariantConstRef target) {
if (!_data)
return;
const VariantData *targetData = getData(target);
if (targetData)
_data->setPointer(targetData);
else
_data->setNull();
}
private:
MemoryPool *_pool;