diff --git a/.travis.yml b/.travis.yml
index df2845d..2263ed4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,32 +11,37 @@ matrix:
 
 install:
   - travis_retry composer install --no-interaction --prefer-dist --optimize-autoloader
-  - travis_retry wget https://phar.io/releases/phive.phar
 
 script:
   - ./vendor/bin/phpunit --no-coverage
 
 jobs:
   include:
-    - stage: coverage
+    - stage: analysis
       php: 7.1
       script:
         - ./vendor/bin/phpunit
       after_script:
+        - travis_retry wget --no-verbose https://phar.io/releases/phive.phar
         - travis_retry php phive.phar --no-progress install --trust-gpg-keys E82B2FB314E9906E php-coveralls/php-coveralls && ./tools/php-coveralls --verbose
-        - travis_retry wget https://scrutinizer-ci.com/ocular.phar && php ocular.phar code-coverage:upload --format=php-clover build/logs/clover.xml
+        - travis_retry wget --no-verbose https://scrutinizer-ci.com/ocular.phar && php ocular.phar code-coverage:upload --format=php-clover build/logs/clover.xml
 
-    - stage: lint
+    - stage: analysis
       php: 7.1
       before_script:
+        - travis_retry wget --no-verbose https://phar.io/releases/phive.phar
         - travis_retry php phive.phar --no-progress install --trust-gpg-keys 8E730BA25823D8B5 phpstan
       script:
         - ./tools/phpstan analyse src --level max --configuration phpstan.neon
+
+    - stage: analysis
+      php: 7.1
+      script:
         - composer create-project symplify/easy-coding-standard temp/ecs ^3 && temp/ecs/bin/ecs check src tests
 
 cache:
   directories:
-  - $HOME/.composer/cache/files
+  - $HOME/.composer
   - $HOME/.phive
 
 notifications:
diff --git a/composer.json b/composer.json
index e2e2766..df3681c 100644
--- a/composer.json
+++ b/composer.json
@@ -9,14 +9,14 @@
           "email": "me@mikevanriel.com"
         }
     ],
-    "minimum-stability": "alpha",
+    "minimum-stability": "beta",
     "require": {
         "php": ">=7.1",
-        "phpdocumentor/reflection-common": "^2"
+        "phpdocumentor/reflection-common": "~2.0.0-beta1"
     },
     "require-dev": {
-        "mockery/mockery": "^1.0",
-        "phpunit/phpunit": "^6.5"
+        "mockery/mockery": "~1",
+        "phpunit/phpunit": "~6"
     },
     "autoload": {
         "psr-4": {
diff --git a/composer.lock b/composer.lock
index 003c029..0bb56da 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,30 +1,30 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "de634f0190c992b711dc817bb6eac307",
+    "content-hash": "b86fda2a5ea5ce96e6f3d75584fc43fc",
     "packages": [
         {
             "name": "phpdocumentor/reflection-common",
-            "version": "2.0.0-alpha3",
+            "version": "2.0.0-beta1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionCommon.git",
-                "reference": "eedd98e8bc9cfd924f056b4b5847066d4a250d2f"
+                "reference": "63a995caa1ca9e5590304cd845c15ad6d482a62a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/eedd98e8bc9cfd924f056b4b5847066d4a250d2f",
-                "reference": "eedd98e8bc9cfd924f056b4b5847066d4a250d2f",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionCommon/zipball/63a995caa1ca9e5590304cd845c15ad6d482a62a",
+                "reference": "63a995caa1ca9e5590304cd845c15ad6d482a62a",
                 "shasum": ""
             },
             "require": {
                 "php": ">=7.1"
             },
             "require-dev": {
-                "phpunit/phpunit": "^6"
+                "phpunit/phpunit": "~6"
             },
             "type": "library",
             "extra": {
@@ -34,9 +34,7 @@
             },
             "autoload": {
                 "psr-4": {
-                    "phpDocumentor\\Reflection\\": [
-                        "src"
-                    ]
+                    "phpDocumentor\\Reflection\\": "src/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -58,43 +56,98 @@
                 "reflection",
                 "static analysis"
             ],
-            "time": "2018-06-13T21:44:20+00:00"
+            "time": "2018-08-07T13:53:10+00:00"
         }
     ],
     "packages-dev": [
+        {
+            "name": "dflydev/markdown",
+            "version": "v1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/dflydev/dflydev-markdown.git",
+                "reference": "76501a808522dbe40a5a71d272bd08d54cbae03d"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/dflydev/dflydev-markdown/zipball/76501a808522dbe40a5a71d272bd08d54cbae03d",
+                "reference": "76501a808522dbe40a5a71d272bd08d54cbae03d",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "dflydev\\markdown": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "New BSD License"
+            ],
+            "authors": [
+                {
+                    "name": "Dragonfly Development Inc.",
+                    "email": "info@dflydev.com",
+                    "homepage": "http://dflydev.com"
+                },
+                {
+                    "name": "Beau Simensen",
+                    "email": "beau@dflydev.com",
+                    "homepage": "http://beausimensen.com"
+                },
+                {
+                    "name": "Michel Fortin",
+                    "homepage": "http://michelf.com"
+                },
+                {
+                    "name": "John Gruber",
+                    "homepage": "http://daringfireball.net"
+                }
+            ],
+            "description": "PHP Markdown & Extra",
+            "homepage": "http://github.com/dflydev/dflydev-markdown",
+            "keywords": [
+                "markdown"
+            ],
+            "abandoned": "michelf/php-markdown",
+            "time": "2012-01-02T23:11:32+00:00"
+        },
         {
             "name": "doctrine/instantiator",
-            "version": "1.1.0",
+            "version": "1.0.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/instantiator.git",
-                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda"
+                "reference": "f976e5de371104877ebc89bd8fecb0019ed9c119"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
-                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
+                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/f976e5de371104877ebc89bd8fecb0019ed9c119",
+                "reference": "f976e5de371104877ebc89bd8fecb0019ed9c119",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1"
+                "php": ">=5.3,<8.0-DEV"
             },
             "require-dev": {
                 "athletic/athletic": "~0.1.8",
                 "ext-pdo": "*",
                 "ext-phar": "*",
-                "phpunit/phpunit": "^6.2.3",
-                "squizlabs/php_codesniffer": "^3.0.2"
+                "phpunit/phpunit": "~4.0",
+                "squizlabs/php_codesniffer": "2.0.*@ALPHA"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2.x-dev"
+                    "dev-master": "1.0.x-dev"
                 }
             },
             "autoload": {
-                "psr-4": {
-                    "Doctrine\\Instantiator\\": "src/Doctrine/Instantiator/"
+                "psr-0": {
+                    "Doctrine\\Instantiator\\": "src"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -114,7 +167,7 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2017-07-22T11:58:36+00:00"
+            "time": "2014-10-13T12:58:55+00:00"
         },
         {
             "name": "hamcrest/hamcrest-php",
@@ -166,16 +219,16 @@
         },
         {
             "name": "mockery/mockery",
-            "version": "1.1.0",
+            "version": "1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/mockery/mockery.git",
-                "reference": "99e29d3596b16dabe4982548527d5ddf90232e99"
+                "reference": "1bac8c362b12f522fdd1f1fa3556284c91affa38"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/mockery/mockery/zipball/99e29d3596b16dabe4982548527d5ddf90232e99",
-                "reference": "99e29d3596b16dabe4982548527d5ddf90232e99",
+                "url": "https://api.github.com/repos/mockery/mockery/zipball/1bac8c362b12f522fdd1f1fa3556284c91affa38",
+                "reference": "1bac8c362b12f522fdd1f1fa3556284c91affa38",
                 "shasum": ""
             },
             "require": {
@@ -184,8 +237,7 @@
                 "php": ">=5.6.0"
             },
             "require-dev": {
-                "phpdocumentor/phpdocumentor": "^2.9",
-                "phpunit/phpunit": "~5.7.10|~6.5"
+                "phpunit/phpunit": "~5.7|~6.1"
             },
             "type": "library",
             "extra": {
@@ -214,8 +266,8 @@
                     "homepage": "http://davedevelopment.co.uk"
                 }
             ],
-            "description": "Mockery is a simple yet flexible PHP mock object framework",
-            "homepage": "https://github.com/mockery/mockery",
+            "description": "Mockery is a simple yet flexible PHP mock object framework for use in unit testing with PHPUnit, PHPSpec or any other testing framework. Its core goal is to offer a test double framework with a succinct API capable of clearly defining all possible object operations and interactions using a human readable Domain Specific Language (DSL). Designed as a drop in alternative to PHPUnit's phpunit-mock-objects library, Mockery is easy to integrate with PHPUnit and can operate alongside phpunit-mock-objects without the World ending.",
+            "homepage": "http://github.com/mockery/mockery",
             "keywords": [
                 "BDD",
                 "TDD",
@@ -228,47 +280,41 @@
                 "test double",
                 "testing"
             ],
-            "time": "2018-05-08T08:54:48+00:00"
+            "time": "2017-10-06T16:20:43+00:00"
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.8.1",
+            "version": "1.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "3e01bdad3e18354c3dce54466b7fbe33a9f9f7f8"
+                "reference": "96fbdc07635989c35c5a1912379f4c4b2ab15fd5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/3e01bdad3e18354c3dce54466b7fbe33a9f9f7f8",
-                "reference": "3e01bdad3e18354c3dce54466b7fbe33a9f9f7f8",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/96fbdc07635989c35c5a1912379f4c4b2ab15fd5",
+                "reference": "96fbdc07635989c35c5a1912379f4c4b2ab15fd5",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1"
-            },
-            "replace": {
-                "myclabs/deep-copy": "self.version"
+                "php": ">=5.4.0"
             },
             "require-dev": {
-                "doctrine/collections": "^1.0",
-                "doctrine/common": "^2.6",
-                "phpunit/phpunit": "^7.1"
+                "doctrine/collections": "1.*",
+                "phpunit/phpunit": "~4.1"
             },
             "type": "library",
             "autoload": {
                 "psr-4": {
                     "DeepCopy\\": "src/DeepCopy/"
-                },
-                "files": [
-                    "src/DeepCopy/deep_copy.php"
-                ]
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
             "description": "Create deep copies (clones) of your objects",
+            "homepage": "https://github.com/myclabs/DeepCopy",
             "keywords": [
                 "clone",
                 "copy",
@@ -276,133 +322,28 @@
                 "object",
                 "object graph"
             ],
-            "time": "2018-06-11T23:09:50+00:00"
-        },
-        {
-            "name": "phar-io/manifest",
-            "version": "1.0.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phar-io/manifest.git",
-                "reference": "2df402786ab5368a0169091f61a7c1e0eb6852d0"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/phar-io/manifest/zipball/2df402786ab5368a0169091f61a7c1e0eb6852d0",
-                "reference": "2df402786ab5368a0169091f61a7c1e0eb6852d0",
-                "shasum": ""
-            },
-            "require": {
-                "ext-dom": "*",
-                "ext-phar": "*",
-                "phar-io/version": "^1.0.1",
-                "php": "^5.6 || ^7.0"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.0.x-dev"
-                }
-            },
-            "autoload": {
-                "classmap": [
-                    "src/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Arne Blankerts",
-                    "email": "arne@blankerts.de",
-                    "role": "Developer"
-                },
-                {
-                    "name": "Sebastian Heuer",
-                    "email": "sebastian@phpeople.de",
-                    "role": "Developer"
-                },
-                {
-                    "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de",
-                    "role": "Developer"
-                }
-            ],
-            "description": "Component for reading phar.io manifest information from a PHP Archive (PHAR)",
-            "time": "2017-03-05T18:14:27+00:00"
-        },
-        {
-            "name": "phar-io/version",
-            "version": "1.0.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/phar-io/version.git",
-                "reference": "a70c0ced4be299a63d32fa96d9281d03e94041df"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/phar-io/version/zipball/a70c0ced4be299a63d32fa96d9281d03e94041df",
-                "reference": "a70c0ced4be299a63d32fa96d9281d03e94041df",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^5.6 || ^7.0"
-            },
-            "type": "library",
-            "autoload": {
-                "classmap": [
-                    "src/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Arne Blankerts",
-                    "email": "arne@blankerts.de",
-                    "role": "Developer"
-                },
-                {
-                    "name": "Sebastian Heuer",
-                    "email": "sebastian@phpeople.de",
-                    "role": "Developer"
-                },
-                {
-                    "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de",
-                    "role": "Developer"
-                }
-            ],
-            "description": "Library for handling version information and constraints",
-            "time": "2017-03-05T17:38:23+00:00"
+            "time": "2015-03-21T22:40:23+00:00"
         },
         {
             "name": "phpdocumentor/reflection-docblock",
-            "version": "2.0.5",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpDocumentor/ReflectionDocBlock.git",
-                "reference": "e6a969a640b00d8daa3c66518b0405fb41ae0c4b"
+                "reference": "66ae84e9d7c8ea85c979cb65977bd8e608baf0c5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/e6a969a640b00d8daa3c66518b0405fb41ae0c4b",
-                "reference": "e6a969a640b00d8daa3c66518b0405fb41ae0c4b",
+                "url": "https://api.github.com/repos/phpDocumentor/ReflectionDocBlock/zipball/66ae84e9d7c8ea85c979cb65977bd8e608baf0c5",
+                "reference": "66ae84e9d7c8ea85c979cb65977bd8e608baf0c5",
                 "shasum": ""
             },
             "require": {
+                "dflydev/markdown": "1.0.*",
                 "php": ">=5.3.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.0"
-            },
-            "suggest": {
-                "dflydev/markdown": "~1.0",
-                "erusev/parsedown": "~1.0"
+                "phpunit/phpunit": "3.7.*@stable"
             },
             "type": "library",
             "extra": {
@@ -427,37 +368,37 @@
                     "email": "mike.vanriel@naenius.com"
                 }
             ],
-            "time": "2016-01-25T08:17:30+00:00"
+            "time": "2013-08-07T11:04:22+00:00"
         },
         {
             "name": "phpspec/prophecy",
-            "version": "1.7.6",
+            "version": "v1.6.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpspec/prophecy.git",
-                "reference": "33a7e3c4fda54e912ff6338c48823bd5c0f0b712"
+                "reference": "6c52c2722f8460122f96f86346600e1077ce22cb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/33a7e3c4fda54e912ff6338c48823bd5c0f0b712",
-                "reference": "33a7e3c4fda54e912ff6338c48823bd5c0f0b712",
+                "url": "https://api.github.com/repos/phpspec/prophecy/zipball/6c52c2722f8460122f96f86346600e1077ce22cb",
+                "reference": "6c52c2722f8460122f96f86346600e1077ce22cb",
                 "shasum": ""
             },
             "require": {
                 "doctrine/instantiator": "^1.0.2",
                 "php": "^5.3|^7.0",
-                "phpdocumentor/reflection-docblock": "^2.0|^3.0.2|^4.0",
-                "sebastian/comparator": "^1.1|^2.0|^3.0",
-                "sebastian/recursion-context": "^1.0|^2.0|^3.0"
+                "phpdocumentor/reflection-docblock": "^2.0|^3.0.2",
+                "sebastian/comparator": "^1.1",
+                "sebastian/recursion-context": "^1.0|^2.0"
             },
             "require-dev": {
-                "phpspec/phpspec": "^2.5|^3.2",
-                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.5"
+                "phpspec/phpspec": "^2.0",
+                "phpunit/phpunit": "^4.8 || ^5.6.5"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.7.x-dev"
+                    "dev-master": "1.6.x-dev"
                 }
             },
             "autoload": {
@@ -490,44 +431,43 @@
                 "spy",
                 "stub"
             ],
-            "time": "2018-04-18T13:57:24+00:00"
+            "time": "2016-11-21T14:58:47+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "5.3.2",
+            "version": "5.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "c89677919c5dd6d3b3852f230a663118762218ac"
+                "reference": "e7d7a4acca58e45bdfd00221563d131cfb04ba96"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/c89677919c5dd6d3b3852f230a663118762218ac",
-                "reference": "c89677919c5dd6d3b3852f230a663118762218ac",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/e7d7a4acca58e45bdfd00221563d131cfb04ba96",
+                "reference": "e7d7a4acca58e45bdfd00221563d131cfb04ba96",
                 "shasum": ""
             },
             "require": {
-                "ext-dom": "*",
-                "ext-xmlwriter": "*",
                 "php": "^7.0",
-                "phpunit/php-file-iterator": "^1.4.2",
-                "phpunit/php-text-template": "^1.2.1",
-                "phpunit/php-token-stream": "^2.0.1",
-                "sebastian/code-unit-reverse-lookup": "^1.0.1",
-                "sebastian/environment": "^3.0",
-                "sebastian/version": "^2.0.1",
-                "theseer/tokenizer": "^1.1"
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@@ -1160,27 +1093,27 @@
                 "export",
                 "exporter"
             ],
-            "time": "2017-04-03T13:19:02+00:00"
+            "time": "2016-11-19T08:54:04+00:00"
         },
         {
             "name": "sebastian/global-state",
-            "version": "2.0.0",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/global-state.git",
-                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4"
+                "reference": "23af31f402993cfd94e99cbc4b782e9a78eb0e97"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
-                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
+                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/23af31f402993cfd94e99cbc4b782e9a78eb0e97",
+                "reference": "23af31f402993cfd94e99cbc4b782e9a78eb0e97",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0"
+                "php": ">=5.3.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "^6.0"
+                "phpunit/phpunit": "~4.2"
             },
             "suggest": {
                 "ext-uopz": "*"
@@ -1188,7 +1121,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0-dev"
+                    "dev-master": "1.0-dev"
                 }
             },
             "autoload": {
@@ -1211,34 +1144,33 @@
             "keywords": [
                 "global state"
             ],
-            "time": "2017-04-27T15:39:26+00:00"
+            "time": "2015-06-21T15:11:22+00:00"
         },
         {
             "name": "sebastian/object-enumerator",
-            "version": "3.0.3",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/object-enumerator.git",
-                "reference": "7cfd9e65d11ffb5af41198476395774d4c8a84c5"
+                "reference": "96f8a3f257b69e8128ad74d3a7fd464bcbaa3b35"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/7cfd9e65d11ffb5af41198476395774d4c8a84c5",
-                "reference": "7cfd9e65d11ffb5af41198476395774d4c8a84c5",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/96f8a3f257b69e8128ad74d3a7fd464bcbaa3b35",
+                "reference": "96f8a3f257b69e8128ad74d3a7fd464bcbaa3b35",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0",
-                "sebastian/object-reflector": "^1.1.1",
-                "sebastian/recursion-context": "^3.0"
+                "php": ">=5.6",
+                "sebastian/recursion-context": "~2.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^6.0"
+                "phpunit/phpunit": "~5"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -1258,77 +1190,32 @@
             ],
             "description": "Traverses array structures and object graphs to enumerate all referenced objects",
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
-            "time": "2017-08-03T12:35:26+00:00"
-        },
-        {
-            "name": "sebastian/object-reflector",
-            "version": "1.1.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/sebastianbergmann/object-reflector.git",
-                "reference": "773f97c67f28de00d397be301821b06708fca0be"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/object-reflector/zipball/773f97c67f28de00d397be301821b06708fca0be",
-                "reference": "773f97c67f28de00d397be301821b06708fca0be",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^7.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^6.0"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.1-dev"
-                }
-            },
-            "autoload": {
-                "classmap": [
-                    "src/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de"
-                }
-            ],
-            "description": "Allows reflection of object attributes, including inherited and non-public ones",
-            "homepage": "https://github.com/sebastianbergmann/object-reflector/",
-            "time": "2017-03-29T09:07:27+00:00"
+            "time": "2016-11-19T07:35:10+00:00"
         },
         {
             "name": "sebastian/recursion-context",
-            "version": "3.0.0",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/recursion-context.git",
-                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8"
+                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
-                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/2c3ba150cbec723aa057506e73a8d33bdb286c9a",
+                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.0"
+                "php": ">=5.3.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "^6.0"
+                "phpunit/phpunit": "~4.4"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.0.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -1356,7 +1243,7 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "time": "2017-03-03T06:23:57+00:00"
+            "time": "2016-11-19T07:33:16+00:00"
         },
         {
             "name": "sebastian/resource-operations",
@@ -1402,16 +1289,16 @@
         },
         {
             "name": "sebastian/version",
-            "version": "2.0.1",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/version.git",
-                "reference": "99732be0ddb3361e16ad77b68ba41efc8e979019"
+                "reference": "c829badbd8fdf16a0bad8aa7fa7971c029f1b9c5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/99732be0ddb3361e16ad77b68ba41efc8e979019",
-                "reference": "99732be0ddb3361e16ad77b68ba41efc8e979019",
+                "url": "https://api.github.com/repos/sebastianbergmann/version/zipball/c829badbd8fdf16a0bad8aa7fa7971c029f1b9c5",
+                "reference": "c829badbd8fdf16a0bad8aa7fa7971c029f1b9c5",
                 "shasum": ""
             },
             "require": {
@@ -1441,54 +1328,16 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
-            "time": "2016-10-03T07:35:21+00:00"
-        },
-        {
-            "name": "theseer/tokenizer",
-            "version": "1.1.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/theseer/tokenizer.git",
-                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/cb2f008f3f05af2893a87208fe6a6c4985483f8b",
-                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b",
-                "shasum": ""
-            },
-            "require": {
-                "ext-dom": "*",
-                "ext-tokenizer": "*",
-                "ext-xmlwriter": "*",
-                "php": "^7.0"
-            },
-            "type": "library",
-            "autoload": {
-                "classmap": [
-                    "src/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "BSD-3-Clause"
-            ],
-            "authors": [
-                {
-                    "name": "Arne Blankerts",
-                    "email": "arne@blankerts.de",
-                    "role": "Developer"
-                }
-            ],
-            "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
-            "time": "2017-04-07T12:08:54+00:00"
+            "time": "2016-02-04T12:56:52+00:00"
         }
     ],
     "aliases": [],
-    "minimum-stability": "alpha",
-    "stability-flags": [],
+    "minimum-stability": "beta",
+    "stability-flags": {
+        "phpdocumentor/reflection-common": 10
+    },
     "prefer-stable": false,
-    "prefer-lowest": false,
+    "prefer-lowest": true,
     "platform": {
         "php": ">=7.1"
     },
diff --git a/phive.xml b/phive.xml
index 5630fde..9908931 100644
--- a/phive.xml
+++ b/phive.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phive xmlns="https://phar.io/phive">
-  <phar name="phpunit" version="^6.5.5" installed="6.5.5" location="./tools/phpunit"/>
-  <phar name="phpstan" version="^0.9.1" installed="0.9.1" location="./tools/phpstan"/>
+  <phar name="phpunit" version="^6.5.5" installed="6.5.11" location="./tools/phpunit"/>
+  <phar name="phpstan" version="^0.9.1" installed="0.10.2" location="./tools/phpstan"/>
 </phive>
diff --git a/src/FqsenResolver.php b/src/FqsenResolver.php
index d8bb52a..a64fe58 100644
--- a/src/FqsenResolver.php
+++ b/src/FqsenResolver.php
@@ -50,7 +50,7 @@ private function isFqsen($type)
      *
      * @param string $type
      * @return Fqsen
-     * @throws InvalidArgumentException when type is not a valid FQSEN.
+     * @throws \InvalidArgumentException when type is not a valid FQSEN.
      */
     private function resolvePartialStructuralElementName($type, Context $context)
     {
diff --git a/src/TypeResolver.php b/src/TypeResolver.php
index caa734c..e9e98bc 100644
--- a/src/TypeResolver.php
+++ b/src/TypeResolver.php
@@ -116,6 +116,10 @@ public function resolve($type, Context $context = null)
 
         // split the type string into tokens `|`, `?`, `(`, `)[]`, '<', '>' and type names
         $tokens = preg_split('/(\\||\\?|<|>|,|\\(|\\)(?:\\[\\])+)/', $type, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
+        if (false === $tokens) {
+            throw new \InvalidArgumentException('Unable to split the type string "' . $type . '" into tokens');
+        }
+
         $tokenIterator = new \ArrayIterator($tokens);
 
         return $this->parseTypes($tokenIterator, $context, self::PARSER_IN_COMPOUND);
@@ -193,8 +197,9 @@ private function parseTypes(\ArrayIterator $tokens, Context $context, $parserCon
                 }
 
                 $classType = array_pop($types);
-
-                $types[] = $this->resolveCollection($tokens, $classType, $context);
+                if ($classType) {
+                    $types[] = $this->resolveCollection($tokens, $classType, $context);
+                }
 
                 $tokens->next();
             } elseif ($parserContext === self::PARSER_IN_COLLECTION_EXPRESSION
diff --git a/src/Types/ContextFactory.php b/src/Types/ContextFactory.php
index ba25719..92621f6 100644
--- a/src/Types/ContextFactory.php
+++ b/src/Types/ContextFactory.php
@@ -63,7 +63,10 @@ public function createFromReflector(\Reflector $reflector): Context
 
     private function createFromReflectionParameter(\ReflectionParameter $parameter): Context
     {
-        return $this->createFromReflectionClass($parameter->getDeclaringClass());
+        $class = $parameter->getDeclaringClass();
+        if ($class) {
+            return $this->createFromReflectionClass($class);
+        }
     }
 
     private function createFromReflectionMethod(\ReflectionMethod $method): Context
@@ -87,7 +90,12 @@ private function createFromReflectionClass(\ReflectionClass $class): Context
         $namespace = $class->getNamespaceName();
 
         if (is_string($fileName) && file_exists($fileName)) {
-            return $this->createForNamespace($namespace, file_get_contents($fileName));
+            $contents = file_get_contents($fileName);
+            if (false === $contents) {
+                throw new \RuntimeException('Unable to read file "' . $fileName . '"');
+            }
+
+            return $this->createForNamespace($namespace, $contents);
         }
 
         return new Context($namespace, []);
diff --git a/src/Types/Object_.php b/src/Types/Object_.php
index 8755b40..c003420 100644
--- a/src/Types/Object_.php
+++ b/src/Types/Object_.php
@@ -30,7 +30,7 @@ final class Object_ implements Type
     /**
      * Initializes this object with an optional FQSEN, if not provided this object is considered 'untyped'.
      *
-     * @throws InvalidArgumentException when provided $fqsen is not a valid type.
+     * @throws \InvalidArgumentException when provided $fqsen is not a valid type.
      */
     public function __construct(Fqsen $fqsen = null)
     {