Added Value::find with String key (#1467)
* Added Value::find with String key
* Fix codestyle
---------
Co-authored-by: Jordan Bayles <bayles.jordan@gmail.com>
Co-authored-by: Petukhov Timofey <Timofey.Petukhov@infotecs.ru>
diff --git a/include/json/value.h b/include/json/value.h
index f1232c4..c8e1aae 100644
--- a/include/json/value.h
+++ b/include/json/value.h
@@ -513,6 +513,9 @@
/// and operator[]const
/// \note As stated elsewhere, behavior is undefined if (end-begin) >= 2^30
Value const* find(char const* begin, char const* end) const;
+ /// Most general and efficient version of isMember()const, get()const,
+ /// and operator[]const
+ Value const* find(const String& key) const;
/// Most general and efficient version of object-mutators.
/// \note As stated elsewhere, behavior is undefined if (end-begin) >= 2^30
/// \return non-zero, but JSON_ASSERT if this is neither object nor nullValue.
diff --git a/src/lib_json/json_value.cpp b/src/lib_json/json_value.cpp
index a5e2dd8..5bd8d9a 100644
--- a/src/lib_json/json_value.cpp
+++ b/src/lib_json/json_value.cpp
@@ -1092,6 +1092,9 @@
return nullptr;
return &(*it).second;
}
+Value const* Value::find(const String& key) const {
+ return find(key.data(), key.data() + key.length());
+}
Value* Value::demand(char const* begin, char const* end) {
JSON_ASSERT_MESSAGE(type() == nullValue || type() == objectValue,
"in Json::Value::demand(begin, end): requires "
@@ -1105,7 +1108,7 @@
return *found;
}
Value const& Value::operator[](const String& key) const {
- Value const* found = find(key.data(), key.data() + key.length());
+ Value const* found = find(key);
if (!found)
return nullSingleton();
return *found;
diff --git a/src/test_lib_json/main.cpp b/src/test_lib_json/main.cpp
index fa41d19..55ab224 100644
--- a/src/test_lib_json/main.cpp
+++ b/src/test_lib_json/main.cpp
@@ -220,11 +220,20 @@
JSONTEST_ASSERT(foundId != nullptr);
JSONTEST_ASSERT_EQUAL(Json::Value(1234), *foundId);
+ const std::string stringIdKey = "id";
+ const Json::Value* stringFoundId = object1_.find(stringIdKey);
+ JSONTEST_ASSERT(stringFoundId != nullptr);
+ JSONTEST_ASSERT_EQUAL(Json::Value(1234), *stringFoundId);
+
const char unknownIdKey[] = "unknown id";
const Json::Value* foundUnknownId =
object1_.find(unknownIdKey, unknownIdKey + strlen(unknownIdKey));
JSONTEST_ASSERT_EQUAL(nullptr, foundUnknownId);
+ const std::string stringUnknownIdKey = "unknown id";
+ const Json::Value* stringFoundUnknownId = object1_.find(stringUnknownIdKey);
+ JSONTEST_ASSERT_EQUAL(nullptr, stringFoundUnknownId);
+
// Access through demand()
const char yetAnotherIdKey[] = "yet another id";
const Json::Value* foundYetAnotherId =