generic c++ get linktype method

Author: mpsonntag

src/nixgen.cc

@@ -39,4 +39,18 @@ mxArray *dataset_read_all(const nix::DataSet &da) {
     return data;
 }
 
+nix::LinkType get_link_type(uint8_t ltype)
+{
+    nix::LinkType link_type;
+
+    switch (ltype) {
+    case 0: link_type = nix::LinkType::Tagged; break;
+    case 1: link_type = nix::LinkType::Untagged; break;
+    case 2: link_type = nix::LinkType::Indexed; break;
+    default: throw std::invalid_argument("unkown link type");
+    }
+
+    return link_type;
+}
+
 } // namespace nixgen

src/nixgen.h

@@ -8,6 +8,8 @@ namespace nixgen {
 
     mxArray *dataset_read_all(const nix::DataSet &da);
 
+    nix::LinkType get_link_type(uint8_t ltype);
+
 } // namespace nixgen
 
 #endif

src/nixtag.cc

@@ -42,15 +42,7 @@ namespace nixtag {
     {
         nix::Tag currObj = input.entity<nix::Tag>(1);
 
-        uint8_t ltype = input.num<uint8_t>(3);
-        nix::LinkType link_type;
-
-        switch (ltype) {
-        case 0: link_type = nix::LinkType::Tagged; break;
-        case 1: link_type = nix::LinkType::Untagged; break;
-        case 2: link_type = nix::LinkType::Indexed; break;
-        default: throw std::invalid_argument("unkown link type");
-        }
+        nix::LinkType link_type = nixgen::get_link_type(input.num<uint8_t>(3));
 
         nix::Feature newFeat = currObj.createFeature(input.str(2), link_type);
         output.set(0, handle(newFeat));