WIP: add properties

cpp/ql/src/experimental/Quantum/Test.ql

@@ -5,7 +5,33 @@
 
 import experimental.Quantum.Language
 
-query predicate nodes(Crypto::NodeBase node) { any() }
+string getValueAndLocationPairs(Crypto::NodeBase node, string key) {
+  exists(string value, Location location |
+    node.properties(key, value, location) and
+    result = "(" + value + "," + location.toString() + ")"
+  )
+}
+
+string properties(Crypto::NodeBase node) {
+  forex(string key | node.properties(key, _, _) |
+    result = key + ":" + strictconcat(getValueAndLocationPairs(node, key), ",")
+  )
+}
+
+string getLabel(Crypto::NodeBase node) {
+  result =
+    "[" + node.toString() + "]" +
+      any(string prop |
+        if exists(properties(node)) then prop = " " + properties(node) else prop = ""
+      |
+        prop
+      )
+}
+
+query predicate nodes(Crypto::NodeBase node, string key, string value) {
+  key = "semmle.label" and
+  value = getLabel(node)
+}
 
 query predicate edges(Crypto::NodeBase source, Crypto::NodeBase target, string key, string value) {
   target = source.getChild(value) and

cpp/ql/src/experimental/Quantum/Test2.ql

@@ -4,5 +4,5 @@
 
 import experimental.Quantum.Language
 
-from Crypto::KeyDerivationAlgorithm n
-select n
+from Crypto::NodeBase node
+select node