Ignore deleted constructors when considering whether a base class is initialized

Author: lcartey

change_notes/2024-10-18-init-base-class-deleted.md

@@ -0,0 +1,2 @@
+- `A12-1-1`, `RULE-15-1-2` - `InitializeAllVirtualBaseClasses.ql`, `ExplicitConstructorBaseClassInitialization.ql`:
+  - Remove false positives for deleted member functions.

cpp/common/src/codingstandards/cpp/rules/initializeallvirtualbaseclasses/InitializeAllVirtualBaseClasses.qll

@@ -38,6 +38,8 @@ query predicate problems(
     not c.isCompilerGenerated() and
     // Not a defaulted constructor
     not c.isDefaulted() and
+    // Not a deleted constructor
+    not c.isDeleted() and
     declaringType_string = declaringType.getSimpleName() and
     baseClass_string = baseClass.getSimpleName() and
     message =

cpp/common/test/rules/initializeallvirtualbaseclasses/test.cpp

@@ -61,4 +61,13 @@ class Derived6 : public Base2 {
 
 private:
   Base2 b;
+};
+
+class Base3 {};
+
+class Derived7 final : public Base3 {
+public:
+  Derived7() = delete;                 // COMPLIANT
+  Derived7(const Derived7 &) = delete; // COMPLIANT
+  Derived7(Derived7 &&) = delete;      // COMPLIANT
 };