json-parser: read CWE from Coverity JSON output if available

Author: kdudka

json-parser.cc

@@ -116,7 +116,8 @@ void JsonParser::Private::dataError(const std::string &msg) {
         << this->defNumber << ": " << msg << "\n";
 }
 
-bool findChildOf(pt::ptree **pDst, pt::ptree &node, const char *key)
+template <typename TNode>
+bool findChildOf(TNode **pDst, TNode &node, const char *key)
 {
     if (node.not_found() == node.find(key))
         return false;
@@ -284,6 +285,11 @@ void CovTreeDecoder::readNode(
     def->checker = defNode.get<std::string>("checkerName");
     def->function = valueOf<std::string>(defNode, "functionDisplayName", "");
 
+    // read CWE if available
+    const pt::ptree *checkerProps;
+    if (findChildOf(&checkerProps, defNode, "checkerProperties"))
+        def->cwe = valueOf<int>(*checkerProps, "cweCategory", 0);
+
     // count the events and allocate dst array
     const pt::ptree &evtList = defNode.get_child("events");
     def->events.resize(evtList.size());

tests/CMakeLists.txt

@@ -175,6 +175,7 @@ test_csgrep(csgrep      "55-csparser-pylint-copr"     )
 test_csgrep(csgrep      "56-gcc-sparser-clang-error"  )
 test_csgrep(csgrep      "57-gcc-parser-gcc-analyzer-curl")
 test_csgrep(csgrep      "58-csparser-gcc-analyzer-curl")
+test_csgrep(csgrep      "59-json-parser-cov-v7-cwe"   )
 test_csparser(csparser-5.8                          00)
 test_csparser(csparser-5.8                          01)
 test_csparser(csparser-5.8                          02)