genbindings/clang2il: detect pure virtual, detect overrides

cmd/genbindings/clang2il.go

@@ -676,6 +676,10 @@ func parseMethod(node map[string]interface{}, mm *CppMethod) error {
 		mm.IsVirtual = true
 	}
 
+	if pure, ok := node["pure"].(bool); ok && pure {
+		mm.IsPureVirtual = true
+	}
+
 	if methodInner, ok := node["inner"].([]interface{}); ok {
 		paramCounter := 0
 		for _, methodObj := range methodInner {
@@ -718,6 +722,12 @@ func parseMethod(node map[string]interface{}, mm *CppMethod) error {
 				// Next
 				paramCounter++
 
+			case "OverrideAttr":
+				// void keyPressEvent(QKeyEvent *e) override;
+				// This is a virtual method being overridden and is a replacement
+				// for actually using the 'virtual' keyword
+				mm.IsVirtual = true
+
 			default:
 				// Something else inside a declaration??
 				log.Printf("==> NOT IMPLEMENTED CXXMethodDecl->%q\n", methodObj["kind"])

cmd/genbindings/intermediate.go

@@ -239,6 +239,7 @@ type CppMethod struct {
 	IsSignal           bool
 	IsConst            bool
 	IsVirtual          bool
+	IsPureVirtual      bool           // Virtual method was declared with = 0 i.e. there is no base method here to call
 	IsProtected        bool           // If true, we can't call this method but we may still be able to overload it
 	HiddenParams       []CppParameter // Populated if there is an overload with more parameters