fup

include/decls.h

@@ -0,0 +1,5 @@
+#pragma once
+class INode;
+class ILink;
+using NodePtr = std::shared_ptr<INode>;
+using LinkPtr = std::shared_ptr<ILink>;

include/ifaces/ILink.h

@@ -1,11 +1,8 @@
 #pragma once
 #include <memory>
 #include <vector>
+#include "ifaces/INode.h"
 
-// Forward declarations
-class INode;
-class ILink;
-using NodePtr = std::shared_ptr<INode>;
 using LinkPtr = std::shared_ptr<ILink>;
 
 class ILink {

include/ifaces/ILinkMixin.h

@@ -1,11 +1,6 @@
 #pragma once
 #include <memory>
-
+#include "decls.h"
-// Forward declarations для избежания циклических #include
-class INode;
-class ILink;
-using NodePtr = std::shared_ptr<INode>;
-using LinkPtr = std::shared_ptr<ILink>;
 
 class ILinkMixin {
 public:
@@ -13,5 +8,4 @@ public:
 	virtual void linkChild(const NodePtr& child) = 0;
 	virtual void unlinkParent() = 0;
 	virtual LinkPtr getLink() = 0;
-	virtual NodePtr getNode() = 0;
 };

include/ifaces/INode.h

@@ -1,8 +1,9 @@
 #pragma once
 #include "ifaces/ILinkMixin.h"
-#include "ifaces/ILink.h"
 #include <string>
 
+using NodePtr = std::shared_ptr<INode>;
+
 class INode : public virtual ILinkMixin {
 public:
 	~INode() = default;

include/mixins/BaseLinkMixin.h

@@ -0,0 +1,41 @@
+#pragma once
+#include <iostream>
+#include "ifaces/INode.h"
+#include "ifaces/ILinkMixin.h"
+#include "links/LeafLink.h"
+#include "links/OneToManyLink.h"
+#include <memory>
+
+class BaseLinkMixin : public virtual ILinkMixin,
+		      public virtual INode,
+		      public std::enable_shared_from_this<INode> {
+public:
+	void linkChild(const NodePtr& childNode) override {
+		LinkPtr childLink = childNode->getLink();
+		childLink->setParent(getNode());
+
+		getLink()->addChild(childNode);
+	}
+
+	void unlinkParent() override {
+		LinkPtr link = getLink();
+
+		NodePtr parent = link->getParent();
+		if (!parent)
+			throw std::logic_error("Have no parent!");
+
+		LinkPtr parentLink = parent->getLink();
+
+		parentLink->removeChild(getNode());
+		getLink()->setParent(nullptr);
+	}
+
+	~BaseLinkMixin() override {
+		std::cout << "--- Destructor called for: " << "BaseLinkMixin" << "\n";
+	}
+
+protected:
+	NodePtr getNode() {
+		return shared_from_this();
+	}
+};

include/mixins/LazyLinkMixin.h

@@ -1,39 +1,22 @@
 #pragma once
 #include <iostream>
-#include "ifaces/INode.h"
+#include "mixins/BaseLinkMixin.h"
-#include "ifaces/ILinkMixin.h"
-#include "links/LeafLink.h"
-#include "links/OneToManyLink.h"
 #include <memory>
 
 template <class TLink>
-class LazyLinkMixin : public virtual ILinkMixin {
+class LazyLinkMixin : public BaseLinkMixin {
 public:
-	void linkChild(const NodePtr& childNode) override {
-		LinkPtr childLink = childNode->getLink();
-		childLink->setParent(getNode());
-
-		getLink()->addChild(childNode);
-	}
-
 	void unlinkParent() override {
 		/* No link -- no parent, who'll unlinked? */
-		if (!link_)
+		if (!this->link_)
 			throw std::logic_error("Link isn't inited!");
 
-		NodePtr parent = link_->getParent();
+		BaseLinkMixin::unlinkParent();
-		if (!parent)
-			throw std::logic_error("Have no parent!");
-
-		LinkPtr parentLink = parent->getLink();
-
-		parentLink->removeChild(getNode());
-		getLink()->setParent(nullptr);
 	}
 
 	LinkPtr getLink() override {
 		lazyInit();
-		return link_;
+		return this->link_;
 	}
 
 	~LazyLinkMixin() override {
@@ -41,14 +24,11 @@ public:
 	}
 
 protected:
-	virtual NodePtr getNode() = 0;
-
-private:
 	void lazyInit() {
-		if (!link_) {
+		if (!this->link_) {
-			link_ = std::make_shared<TLink>(getNode());
+			this->link_ = std::make_shared<TLink>(
+					BaseLinkMixin::getNode());
 		}
 	}
-
 	LinkPtr link_;
 };

include/nodes/BaseNode.h

@@ -3,18 +3,15 @@
 #include "ifaces/INode.h"
 #include <iostream>
 
-class BaseNode : public INode,
+class BaseNode : public virtual INode {
-		 public LazyLinkMixin<OneToManyLink>,
-		 public std::enable_shared_from_this<INode> {
 public:
-	BaseNode(std::string name) : name_(std::move(name)) {}
+	BaseNode(std::string name) : name_(std::move(name)) {
+		std::cout << "--- Base constructor called for: " << name_ << "\n";
+	}
 	const std::string& name() const override { return name_; }
 	~BaseNode() {
 		std::cout << "--- Base destructor called for: " << name_ << "\n";
 	}
 protected:
-	NodePtr getNode() override {
-		return shared_from_this();
-	}
 	std::string name_;
 };

include/nodes/SimpleNode.h

@@ -2,10 +2,13 @@
 #include "nodes/BaseNode.h"
 #include <iostream>
 
-class SimpleNode : public BaseNode {
+class SimpleNode : public BaseNode,
+		   public LazyLinkMixin<OneToManyLink> {
 public:
 	~SimpleNode() {
 		std::cout << "--- Simple destructor called for: " << name_ << "\n";
 	}
-	SimpleNode(std::string name) : BaseNode(std::move(name)) {}
+	SimpleNode(std::string name) : BaseNode(std::move(name)) {
+		std::cout << "--- Simple constructor called for: " << name_ << "\n";
+	}
 };

src/main.cpp

@@ -11,37 +11,47 @@ void printTree(const NodePtr& startNode, int indent = 0) {
 	}
 }
 
+int main2() {
+	std::cout << "Creatin...\n\n";
+	auto root = std::make_shared<SimpleNode>("Root");
+	std::cout << "Nice!\n\n";
+	return 0;
+}
+
 int main() {
 	std::cout << "Entering main scope...\n\n";
 
 	{
 		auto root = std::make_shared<SimpleNode>("Root");
-		auto child2 = std::make_shared<SimpleNode>("Child2");
+		auto child2 = std::make_shared<SimpleNode>("Child1");
 
 		root->linkChild(child2);
+		std::cout << "\nInit tree:\n\n\n";
+		printTree(root);
+
 
 		{
-			auto child1 = std::make_shared<SimpleNode>("Child1");
+			auto child1 = std::make_shared<SimpleNode>("Child2");
 			root->linkChild(child1);
-			auto subchild = std::make_shared<SimpleNode>("SubChild");
+			auto subchild = std::make_shared<SimpleNode>("SubChild2");
 			child1->linkChild(subchild);
 			auto child3 = std::make_shared<SimpleNode>("Child3");
 			root->linkChild(child3);
-			auto subchild2 = std::make_shared<SimpleNode>("SubChild2");
+			auto subchild2 = std::make_shared<SimpleNode>("SubChild3");
 			child3->linkChild(subchild2);
 
-			std::cout << "Initial tree:\n";
+			std::cout << "\nAnother tree:\n\n\n";
 			printTree(root);
 
 			std::cout << "\nUnlinking Child1...\n";
 			child1->unlinkParent();
-			std::cout << "\nTree after unlink:\n";
+			std::cout << "\nTree after unlink:\n\n\n";
 			printTree(root);
 		}
 
-		std::cout << "\nTree after scope out:\n";
+		std::cout << "\nTree after scope out:\n\n\n";
 		printTree(root);
-
+		std::cout << "\n\n";
 	}
 
 	std::cout << "\nExited main scope. All smart pointers destroyed.\n";