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Support ElementProxy and MemberProxy in JsonDocument's constructor

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This commit is contained in:
Benoit Blanchon
2024-05-15 09:33:30 +02:00
parent 1c5e5db071
commit aeb30ef307
3 changed files with 29 additions and 9 deletions
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4
CHANGELOG.md
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@ -1,12 +1,16 @@
ArduinoJson: change log
=======================
HEAD
----
* Add `ARDUINOJSON_STRING_LENGTH_SIZE` to the namespace name
* Add MsgPack bin8/bin16/bin32 support (PR #2078 by @Sanae6)
* Make string support even more generic (PR #2084 by @d-a-v)
* Optimize `deserializeMsgPack()`
* Allow using a `JsonVariant` as a key or index (issue #2080)
Note: works only for reading, not for writing
* Support `ElementProxy` and `MemberProxy` in `JsonDocument`'s constructor
v7.0.4 (2024-03-12)
------

18
extras/tests/JsonDocument/constructor.cpp
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@ -126,4 +126,22 @@ TEST_CASE("JsonDocument constructor") {
REQUIRE(doc2.as<std::string>() == "hello");
}
SECTION("JsonDocument(ElementProxy)") {
JsonDocument doc1;
deserializeJson(doc1, "[\"hello\",\"world\"]");
JsonDocument doc2(doc1[1]);
REQUIRE(doc2.as<std::string>() == "world");
}
SECTION("JsonDocument(MemberProxy)") {
JsonDocument doc1;
deserializeJson(doc1, "{\"hello\":\"world\"}");
JsonDocument doc2(doc1["hello"]);
REQUIRE(doc2.as<std::string>() == "world");
}
}

16
src/ArduinoJson/Document/JsonDocument.hpp
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@ -37,15 +37,13 @@ class JsonDocument : public detail::VariantOperators<const JsonDocument&> {
// Construct from variant, array, or object
template <typename T>
JsonDocument(const T& src,
Allocator* alloc = detail::DefaultAllocator::instance(),
typename detail::enable_if<
detail::is_same<T, JsonVariant>::value ||
detail::is_same<T, JsonVariantConst>::value ||
detail::is_same<T, JsonArray>::value ||
detail::is_same<T, JsonArrayConst>::value ||
detail::is_same<T, JsonObject>::value ||
detail::is_same<T, JsonObjectConst>::value>::type* = 0)
JsonDocument(
const T& src, Allocator* alloc = detail::DefaultAllocator::instance(),
typename detail::enable_if<
detail::IsVariant<T>::value || detail::is_same<T, JsonArray>::value ||
detail::is_same<T, JsonArrayConst>::value ||
detail::is_same<T, JsonObject>::value ||
detail::is_same<T, JsonObjectConst>::value>::type* = 0)
: JsonDocument(alloc) {
set(src);
}