From 05e856f42d09017b5d9835211ea277d1d771718b Mon Sep 17 00:00:00 2001
From: chatlanin <zimin@chatlanin.com.ru>
Date: Wed, 16 Aug 2023 10:16:30 +0300
Subject: [PATCH] add singleton template

---
 bin/meson.build              |  2 +-
 bin/utils/main.cpp           | 13 +++++++++
 src/hack/utils/singleton.hpp | 28 +++++++++++++++++++
 src/meson.build              | 53 +++++++++++++++++++++++-------------
 4 files changed, 76 insertions(+), 20 deletions(-)
 create mode 100644 src/hack/utils/singleton.hpp

diff --git a/bin/meson.build b/bin/meson.build
index 6edbfe1..658b058 100755
--- a/bin/meson.build
+++ b/bin/meson.build
@@ -1,6 +1,6 @@
 executable(
   'hack', 
-  'algorithms/main.cpp', 
+  'utils/main.cpp', 
   dependencies : deps,
   cpp_args: args,
   include_directories : inc
diff --git a/bin/utils/main.cpp b/bin/utils/main.cpp
index eefcefd..ec8f5aa 100644
--- a/bin/utils/main.cpp
+++ b/bin/utils/main.cpp
@@ -2,6 +2,7 @@
 
 #include "hack/logger/logger.hpp"
 #include "hack/utils/utils.hpp"
+#include "hack/utils/singleton.hpp"
 #include "hack/utils/func_query.hpp"
 
 int f(int a)
@@ -32,6 +33,14 @@ struct counter_test_2
   int id;
 };
 
+struct test_singleton : public hack::utils::singleton<test_singleton>
+{
+  void print()
+  {
+    hack::log()("Print singleton");
+  }
+};
+
 auto main(int argc, char *argv[]) -> int
 {
   {// ex: utils::func_memory
@@ -83,6 +92,10 @@ auto main(int argc, char *argv[]) -> int
     query = hack::utils::make_query("super_function");
     hack::log()("query", query);
   }
+
+  {// ex: singleton
+    test_singleton::get_instance().print();
+  }
 }
 
 
diff --git a/src/hack/utils/singleton.hpp b/src/hack/utils/singleton.hpp
new file mode 100644
index 0000000..b4ee3ac
--- /dev/null
+++ b/src/hack/utils/singleton.hpp
@@ -0,0 +1,28 @@
+#pragma once
+
+namespace hack::utils
+{
+  struct no_copy
+  {
+    no_copy() = default;
+    no_copy(const no_copy&&) = delete;
+    no_copy operator=(const no_copy&&) = delete;
+  };
+
+  struct no_move
+  {
+    no_move() = default;
+    no_move(no_move&&) = delete;
+    no_move operator=(no_move&&) = delete;
+  };
+
+  template<typename T>
+  struct singleton : public no_move, no_copy
+  {
+    static T& get_instance()
+    {
+      static T t;
+      return t;
+    }
+  };
+}
diff --git a/src/meson.build b/src/meson.build
index 8a0d984..82630ed 100755
--- a/src/meson.build
+++ b/src/meson.build
@@ -1,27 +1,42 @@
 inc += include_directories('.')
 
 headers = [
-  'hack/logger/logger.hpp',
+  'hack/algorithms/sort.hpp',
+
+  'hack/concepts/concepts.hpp',
+
+  'hack/containers/containers.hpp',
+  'hack/containers/set.hpp',
+  'hack/containers/utils.hpp',
   'hack/containers/vector.hpp',
 
-  # 'hack/concepts/concepts.hpp',
-  # 'hack/iterators/associative_ostream_iterator.hpp',
-  # 'hack/iterators/sequence_ostream_iterator.hpp',
-  # 'hack/math/matrix.hpp',
-  # 'hack/math/max.hpp',
-  # 'hack/math/vector.hpp',
-  # 'hack/range/range.hpp',
-  # 'hack/range/range.hpp',
-  # 'hack/security/is_link.hpp',
-  # 'hack/security/is_string.hpp',
-  # 'hack/security/uuid.hpp',
-  # 'hack/security/validate_email.hpp',
-  # 'hack/string/string.hpp',
-  # 'hack/string/string_concat_helper.hpp',
-  # 'hack/string/utf8_len.hpp',
-  # 'hack/utils/func_query.hpp',
-  # 'hack/utils/utils.hpp',
-  # 'hack/view/color.hpp'
+  'hack/iterators/associative_ostream_iterator.hpp',
+  'hack/iterators/sequence_ostream_iterator.hpp',
+
+  'hack/logger/logger.hpp',
+
+  'hack/macros/macros.hpp',
+
+  'hack/math/matrix.hpp',
+  'hack/math/max.hpp',
+  'hack/math/vector.hpp',
+
+  'hack/memory/make_ptr.hpp',
+
+  'hack/security/is_link.hpp',
+  'hack/security/is_string.hpp',
+  'hack/security/uuid.hpp',
+  'hack/security/validate_email.hpp',
+
+  'hack/string/string.hpp',
+  'hack/string/string_concat_helper.hpp',
+  'hack/string/utf8_len.hpp',
+
+  'hack/utils/func_query.hpp',
+  'hack/utils/singleton.hpp',
+  'hack/utils/utils.hpp',
+
+  'hack/view/color.hpp'
 ]
 
 sources = []