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Diffstat (limited to 'src/mbgl/style/expression/compound_expression.cpp')
-rw-r--r-- | src/mbgl/style/expression/compound_expression.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mbgl/style/expression/compound_expression.cpp b/src/mbgl/style/expression/compound_expression.cpp index 3bd8a836df..4739d50168 100644 --- a/src/mbgl/style/expression/compound_expression.cpp +++ b/src/mbgl/style/expression/compound_expression.cpp @@ -303,6 +303,7 @@ std::unordered_map<std::string, CompoundExpressionRegistry::Definition> initiali define("to-string", [](const Value& value) -> Result<std::string> { return value.match( + [](const NullValue&) -> Result<std::string> { return std::string(); }, [](const Color& c) -> Result<std::string> { return c.stringify(); }, // avoid quoting [](const std::string& s) -> Result<std::string> { return s; }, // avoid quoting [](const auto& v) -> Result<std::string> { return stringify(v); } |