[core] Fix google-explicit-constructor errors

As reported by clang-tidy-8.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/mbgl/style/expression/compound_expression.cpp b/src/mbgl/style/expression/compound_expression.cpp
index 31628617f6..b95dabfc84 100644
--- a/src/mbgl/style/expression/compound_expression.cpp
+++ b/src/mbgl/style/expression/compound_expression.cpp
@@ -33,7 +33,7 @@ bool operator==(const VarargsType& lhs, const VarargsType& rhs) {
 template <typename T>
 struct Varargs : std::vector<T> {
     template <class... Args>
-    Varargs(Args&&... args) : std::vector<T>(std::forward<Args>(args)...) {}
+    explicit Varargs(Args&&... args) : std::vector<T>(std::forward<Args>(args)...) {}
 };
 
 namespace detail {
diff --git a/src/mbgl/style/expression/expression.cpp b/src/mbgl/style/expression/expression.cpp
index 4f5e3848d5..270fa5eba0 100644
--- a/src/mbgl/style/expression/expression.cpp
+++ b/src/mbgl/style/expression/expression.cpp
@@ -12,7 +12,7 @@ public:
     const Feature& feature;
     mutable optional<GeometryCollection> geometry;
 
-    GeoJSONFeature(const Feature& feature_) : feature(feature_) {}
+    explicit GeoJSONFeature(const Feature& feature_) : feature(feature_) {}
     GeoJSONFeature(const Feature& feature_, const CanonicalTileID& canonical) : feature(feature_) {
         geometry = convertGeometry(feature.geometry, canonical);
         // https://github.com/mapbox/geojson-vt-cpp/issues/44