fix: propagate current dependency mode when extracting typedefs as a dependency

Author: sdkrystian

src/lib/AST/ASTVisitor.cpp

@@ -1835,8 +1835,13 @@ class ASTVisitor
 
         I.Name = extractName(D);
 
+        // When a symbol has a dependency on a typedef, we also
+        // consider the symbol to have a dependency on the aliased
+        // type. Therefore, we propagate the current dependency mode
+        // when building the TypeInfo for the aliased type
         I.Type = buildTypeInfo(
-            D->getUnderlyingType());
+            D->getUnderlyingType(),
+            currentMode());
 
     #if 0
         if(I.Type.Name.empty())

test-files/old-tests/dependency-propagation.cpp

@@ -0,0 +1,15 @@
+namespace N 
+{
+    template<typename T>
+    struct A { };
+    
+    template<typename T>
+    using B = A<T>;
+    
+    template<typename T>
+    using C = B<T>;
+
+    struct D { };
+}
+
+struct E : N::C<int> { };

test-files/old-tests/dependency-propagation.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<mrdocs xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:noNamespaceSchemaLocation="https://github.com/cppalliance/mrdocs/raw/develop/mrdocs.rnc">
+<namespace id="//////////////////////////8=">
+  <struct name="E" id="KJWEqOD/QXinlGIqVHqmIlA5Z6E=">
+    <file path="dependency-propagation.cpp" line="15" class="def"/>
+    <base>
+      <type id="1aINBgFfB9zQVkEDJdB0DyLWTmQ=" name="N::C&lt;int&gt;"/>
+    </base>
+  </struct>
+  <namespace name="N" id="rjlMNXAaWNMkQYMTJzRA1DR0DiE=">
+    <alias name="C" id="1aINBgFfB9zQVkEDJdB0DyLWTmQ=">
+      <file path="dependency-propagation.cpp" line="10" class="def"/>
+      <type id="YZjBn7yW7NyL8yCKqswVvbiptNM=" name="N::B&lt;T&gt;"/>
+    </alias>
+    <alias name="B" id="YZjBn7yW7NyL8yCKqswVvbiptNM=">
+      <file path="dependency-propagation.cpp" line="7" class="def"/>
+      <type id="P3wHAbrIf4CGxTZs+lXT5a3t2K0=" name="N::A&lt;T&gt;"/>
+    </alias>
+    <struct name="A" id="P3wHAbrIf4CGxTZs+lXT5a3t2K0=">
+      <file path="dependency-propagation.cpp" line="4" class="def"/>
+    </struct>
+  </namespace>
+</namespace>
+</mrdocs>

test-files/old-tests/dependency-propagation.yml

@@ -0,0 +1,5 @@
+filters:
+  symbols:
+    exclude:
+      - 'N'
+referenced-declarations: dependency