tmp

2025-07-22 19:18:03 +07:00
parent 3801a5dc0b
commit f5f78308bd
11 changed files with 136 additions and 143 deletions
@@ -5,67 +5,50 @@
 #include "links/OneToManyLink.h"
 #include <memory>

-template <class TFinalNode>
-class LazyLinkMixin : public INode {
+template <class TLink>
+class LazyLinkMixin : public ILinkMixin {
 public:
-    void linkChild(const NodePtr& childNode) override {
-        lazyInit();
-        upgradeLinkIfNeeded();
-        LinkPtr childLink = childNode->getLink();
-        childLink->setParent(link_);
-        link_->addChild(childLink);
-    }
+	void linkChild(const NodePtr& childNode) override {
+		LinkPtr childLink = childNode->getLink();
+		childLink->setParent(getSelf());

-    void unlinkParent() override {
-        lazyInit();
-        LinkPtr parentLink = link_->getParent();
-        if (!parentLink) return;
-        parentLink->removeChild(this->getLink());
-        link_->setParent(nullptr);
-    }
+		getLink()->addChild(childNode);
+	}

-    LinkPtr getLink() override {
-        lazyInit();
-        return link_;
-    }
+	void unlinkParent() override {
+		/* No link -- no parent, who'll unlinked? */
+		if (!link_)
+			throw std::logic_error("Link isn't inited!");

-    ~LazyLinkMixin() override {
-        std::cout << "--- Destructor called for: " << "LazyLinkMixin" << "\n";
-    }
+		NodePtr parent = link_->getParent();
+		if (!parent)
+			throw std::logic_error("Have no parent!");
+
+		LinkPtr parentLink = parent->getLink();
+
+		parentLink->removeChild(getSelf());
+		getLink()->setParent(nullptr);
+	}
+
+	LinkPtr getLink() override {
+		lazyInit();
+		return link_;
+	}
+
+	~LazyLinkMixin() override {
+		std::cout << "--- Destructor called for: " << "LazyLinkMixin" << "\n";
+	}

 protected:
-    virtual std::shared_ptr<TFinalNode> getShared() = 0;
-    NodePtr getSelf() override { return getShared(); }
+	virtual NodePtr getShared() = 0;
+	NodePtr getSelf() override { return getShared(); }

 private:
-    void lazyInit() {
-        if (!link_) {
-            link_ = std::make_shared<LeafLink>(getSelf());
-        }
-    }
+	void lazyInit() {
+		if (!link_) {
+			link_ = std::make_shared<TLink>(getSelf());
+		}
+	}

-    void upgradeLinkIfNeeded() {
-        if (!std::dynamic_pointer_cast<LeafLink>(link_)) return;
-        auto newLink = std::make_shared<OneToManyLink>(getSelf());
-        if (auto parentLink = link_->getParent()) {
-            parentLink->removeChild(link_);
-            parentLink->addChild(newLink);
-        }
-        newLink->setParent(link_->getParent());
-        link_ = newLink;
-    }
-
-    void downgradeLinkIfPossible() {
-        if (link_->getChildren().empty() && std::dynamic_pointer_cast<OneToManyLink>(link_)) {
-            auto newLink = std::make_shared<LeafLink>(getSelf());
-            if (auto parentLink = link_->getParent()) {
-                parentLink->removeChild(link_);
-                parentLink->addChild(newLink);
-            }
-            newLink->setParent(link_->getParent());
-            link_ = newLink;
-        }
-    }
-
-    LinkPtr link_;
+	LinkPtr link_;
 };