Dependencies

aldarien/contract/.gitignore

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+composer.phar
+/vendor/
+
+# Commit your application's lock file http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file
+# You may choose to ignore a library lock file http://getcomposer.org/doc/02-libraries.md#lock-file
+# composer.lock

aldarien/contract/LICENSE

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+MIT License
+
+Copyright (c) 2017 Aldarien
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

aldarien/contract/app/Definition/Contract.php

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+<?php
+namespace App\Definition;
+
+trait Contract
+{
+    protected static $instance = null;
+
+	private function __construct() {}
+
+	protected static function getInstance()
+	{
+		if (self::$instance == null) {
+			self::$instance = static::newInstance();
+		}
+		return self::$instance;
+	}
+
+	abstract protected static function newInstance();
+}
+?>

aldarien/contract/composer.json

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+{
+    "name": "aldarien/contract",
+    "description": "Contract trait for my apps",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Aldarien",
+            "email": "aldarien85@gmail.com"
+        }
+    ],
+    "require": {},
+    "autoload": {
+        "psr-4": {
+            "App\\": "app"
+        }
+    }
+}