Add support for boost::string_view

KingDuckZ · Jun 6, 2017 · 45122d1 · 45122d1
1 parent 333869e
commit 45122d1
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Showing 3 changed files with 11 additions and 2 deletions.
diff --git a/include/mstch/mstch.hpp b/include/mstch/mstch.hpp
@@ -8,6 +8,7 @@
 
 #include <boost/optional.hpp>
 #include <boost/variant.hpp>
+#include <boost/utility/string_view.hpp>
 
 namespace mstch {
 
@@ -99,7 +100,7 @@ using node = boost::make_recursive_variant<
     internal::lambda_t<boost::recursive_variant_>,
     std::shared_ptr<internal::object_t<boost::recursive_variant_>>,
     std::map<const std::string, boost::recursive_variant_>,
-    std::vector<boost::recursive_variant_>>::type;
+    std::vector<boost::recursive_variant_>, boost::string_view>::type;
 using object = internal::object_t<node>;
 using lambda = internal::lambda_t<node>;
 using map = std::map<const std::string, node>;

diff --git a/src/visitor/is_node_empty.hpp b/src/visitor/is_node_empty.hpp
@@ -30,7 +30,11 @@ class is_node_empty: public boost::static_visitor<bool> {
   }
 
   bool operator()(const std::string& value) const {
-    return value == "";
+    return value.empty();
+  }
+
+  bool operator()(const boost::string_view& value) const {
+    return value.empty();
   }
 
   bool operator()(const array& array) const {

diff --git a/src/visitor/render_node.hpp b/src/visitor/render_node.hpp
@@ -36,6 +36,10 @@ class render_node: public boost::static_visitor<std::string> {
     return value ? "true" : "false";
   }
 
+  std::string operator()(const boost::string_view& value) const {
+    return std::string(value);
+  }
+
   std::string operator()(const lambda& value) const {
     template_type interpreted{value([this](const mstch::node& n) {
       return visit(render_node(m_ctx), n);