From 12e86e71ca36a58d7e2ed64f0454b65ed6f7eb56 Mon Sep 17 00:00:00 2001
From: Nao Pross <naopross@thearcway.org>
Date: Tue, 28 Nov 2017 15:05:02 +0100
Subject: New data structure for Structogram and Statements

---
 src/diagram/Scope.cpp | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 src/diagram/Scope.cpp

(limited to 'src/diagram/Scope.cpp')

diff --git a/src/diagram/Scope.cpp b/src/diagram/Scope.cpp
new file mode 100644
index 0000000..335cd20
--- /dev/null
+++ b/src/diagram/Scope.cpp
@@ -0,0 +1,77 @@
+/*
+ *  Created on: Nov 28, 2017
+ *      Author: naopross
+ */
+
+#include "Scope.hpp"
+
+namespace samb {
+
+/* Scope::iterator */
+
+Scope::iterator::iterator(Statement::pointer statement): m_current(statement) {}
+Scope::iterator::~iterator() {}
+
+Scope::iterator& Scope::iterator::operator++() {
+	if (m_current->next() == nullptr) {
+		// TODO: remote throw
+		throw std::logic_error("Statement::iterator::operator++() m_current->next() is nullptr");
+	}
+
+	m_current = m_current->next();
+
+	return *this;
+}
+
+Scope::iterator& Scope::iterator::operator++(int) {
+	static Scope::iterator old(*this);
+
+	old = *this;
+	operator++();
+	return old;
+}
+
+Statement& Scope::iterator::operator*() const {
+	if (m_current == nullptr) {
+		throw std::logic_error("Statement::iterator::operator*() m_current is nullptr");
+	}
+
+	return *m_current;
+}
+
+Statement::pointer Scope::iterator::operator->() const {
+	return m_current;
+}
+
+
+/* Scope */
+
+Scope::Scope(std::string label): Statement(Statement::Type::SCOPE, label, nullptr), m_head(nullptr), m_tail(nullptr) {}
+Scope::Scope(std::string label, Statement::pointer first): Statement(Statement::Type::SCOPE, label, first), m_head(first), m_tail(first) {}
+
+Scope::~Scope() {}
+
+Scope::iterator Scope::insert_after(Scope::iterator it, Statement::pointer statement) {
+	if (statement == nullptr) {
+		throw std::invalid_argument("Statement::insert_after() cannot insert nullptr");
+	}
+
+	statement->next(it->next());
+	it->next(statement);
+
+	m_size++;
+
+	return it;
+}
+
+Scope::iterator Scope::erase_after(Scope::iterator it) {
+	if (it->next() == nullptr) {
+		return end();
+	}
+
+	it->next(it->next()->next());
+
+	return it;
+}
+
+} /* namespace samb */
-- 
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