diff options
Diffstat (limited to 'indra/llcommon')
| -rw-r--r-- | indra/llcommon/llsdjson.cpp | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/indra/llcommon/llsdjson.cpp b/indra/llcommon/llsdjson.cpp index 5d38e55686..1df2a8f9eb 100644 --- a/indra/llcommon/llsdjson.cpp +++ b/indra/llcommon/llsdjson.cpp @@ -61,12 +61,20 @@ LLSD LlsdFromJson(const boost::json::value& val) result = LLSD(val.as_bool()); break; case boost::json::kind::array: + { result = LLSD::emptyArray(); - for (const auto &element : val.as_array()) + auto& array = val.as_array(); + // allocate elements 0 .. (size() - 1) to avoid incremental allocation + if (! array.empty()) + { + result[array.size() - 1] = LLSD(); + } + for (const auto &element : array) { result.append(LlsdFromJson(element)); } break; + } case boost::json::kind::object: result = LLSD::emptyMap(); for (const auto& element : val.as_object()) @@ -106,6 +114,7 @@ boost::json::value LlsdToJson(const LLSD &val) case LLSD::TypeMap: { boost::json::object& obj = result.emplace_object(); + obj.reserve(val.size()); for (const auto& llsd_dat : llsd::inMap(val)) { obj[llsd_dat.first] = LlsdToJson(llsd_dat.second); @@ -115,6 +124,7 @@ boost::json::value LlsdToJson(const LLSD &val) case LLSD::TypeArray: { boost::json::array& json_array = result.emplace_array(); + json_array.reserve(val.size()); for (const auto& llsd_dat : llsd::inArray(val)) { json_array.push_back(LlsdToJson(llsd_dat)); @@ -123,7 +133,8 @@ boost::json::value LlsdToJson(const LLSD &val) } case LLSD::TypeBinary: default: - LL_ERRS("LlsdToJson") << "Unsupported conversion to JSON from LLSD type (" << val.type() << ")." << LL_ENDL; + LL_ERRS("LlsdToJson") << "Unsupported conversion to JSON from LLSD type (" + << val.type() << ")." << LL_ENDL; break; } |