diff options
Diffstat (limited to 'src/mbgl/style/expression/compound_expression.cpp')
-rw-r--r-- | src/mbgl/style/expression/compound_expression.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mbgl/style/expression/compound_expression.cpp b/src/mbgl/style/expression/compound_expression.cpp index cc1d58025b..34f0f5dea3 100644 --- a/src/mbgl/style/expression/compound_expression.cpp +++ b/src/mbgl/style/expression/compound_expression.cpp @@ -423,7 +423,8 @@ const auto& propertiesCompoundExpression() { }; } std::unordered_map<std::string, Value> result; - const PropertyMap properties = params.feature->getProperties(); + const PropertyMap& properties = params.feature->getProperties(); + result.reserve(properties.size()); for (const auto& entry : properties) { result[entry.first] = toExpressionValue(entry.second); } |