* add phpunit as a dev dependency

 * add some basic tests for UrlHelper::rewrite_relative()
 * fix UrlHelper::rewrite_relative() to work better on non-absolute
   relative URL paths

21 files changed, 738 insertions, 0 deletions

diff --git a/vendor/phar-io/manifest/src/values/Application.php b/vendor/phar-io/manifest/src/values/Application.php
new file mode 100644
index 000000000..5420bcb8f
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/Application.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class Application extends Type {
+    public function isApplication(): bool {
+        return true;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/ApplicationName.php b/vendor/phar-io/manifest/src/values/ApplicationName.php
new file mode 100644
index 000000000..d71744ab6
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/ApplicationName.php
@@ -0,0 +1,37 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class ApplicationName {
+    /** @var string */
+    private $name;
+
+    public function __construct(string $name) {
+        $this->ensureValidFormat($name);
+        $this->name = $name;
+    }
+
+    public function asString(): string {
+        return $this->name;
+    }
+
+    public function isEqual(ApplicationName $name): bool {
+        return $this->name === $name->name;
+    }
+
+    private function ensureValidFormat(string $name): void {
+        if (!\preg_match('#\w/\w#', $name)) {
+            throw new InvalidApplicationNameException(
+                \sprintf('Format of name "%s" is not valid - expected: vendor/packagename', $name),
+                InvalidApplicationNameException::InvalidFormat
+            );
+        }
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/Author.php b/vendor/phar-io/manifest/src/values/Author.php
new file mode 100644
index 000000000..82b666e7d
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/Author.php
@@ -0,0 +1,39 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class Author {
+    /** @var string */
+    private $name;
+
+    /** @var Email */
+    private $email;
+
+    public function __construct(string $name, Email $email) {
+        $this->name  = $name;
+        $this->email = $email;
+    }
+
+    public function asString(): string {
+        return \sprintf(
+            '%s <%s>',
+            $this->name,
+            $this->email->asString()
+        );
+    }
+
+    public function getName(): string {
+        return $this->name;
+    }
+
+    public function getEmail(): Email {
+        return $this->email;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/AuthorCollection.php b/vendor/phar-io/manifest/src/values/AuthorCollection.php
new file mode 100644
index 000000000..27e50ad84
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/AuthorCollection.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class AuthorCollection implements \Countable, \IteratorAggregate {
+    /** @var Author[] */
+    private $authors = [];
+
+    public function add(Author $author): void {
+        $this->authors[] = $author;
+    }
+
+    /**
+     * @return Author[]
+     */
+    public function getAuthors(): array {
+        return $this->authors;
+    }
+
+    public function count(): int {
+        return \count($this->authors);
+    }
+
+    public function getIterator(): AuthorCollectionIterator {
+        return new AuthorCollectionIterator($this);
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/AuthorCollectionIterator.php b/vendor/phar-io/manifest/src/values/AuthorCollectionIterator.php
new file mode 100644
index 000000000..4ff3c3943
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/AuthorCollectionIterator.php
@@ -0,0 +1,42 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class AuthorCollectionIterator implements \Iterator {
+    /** @var Author[] */
+    private $authors;
+
+    /** @var int */
+    private $position = 0;
+
+    public function __construct(AuthorCollection $authors) {
+        $this->authors = $authors->getAuthors();
+    }
+
+    public function rewind(): void {
+        $this->position = 0;
+    }
+
+    public function valid(): bool {
+        return $this->position < \count($this->authors);
+    }
+
+    public function key(): int {
+        return $this->position;
+    }
+
+    public function current(): Author {
+        return $this->authors[$this->position];
+    }
+
+    public function next(): void {
+        $this->position++;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/BundledComponent.php b/vendor/phar-io/manifest/src/values/BundledComponent.php
new file mode 100644
index 000000000..ea77b4402
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/BundledComponent.php
@@ -0,0 +1,33 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+use PharIo\Version\Version;
+
+class BundledComponent {
+    /** @var string */
+    private $name;
+
+    /** @var Version */
+    private $version;
+
+    public function __construct(string $name, Version $version) {
+        $this->name    = $name;
+        $this->version = $version;
+    }
+
+    public function getName(): string {
+        return $this->name;
+    }
+
+    public function getVersion(): Version {
+        return $this->version;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/BundledComponentCollection.php b/vendor/phar-io/manifest/src/values/BundledComponentCollection.php
new file mode 100644
index 000000000..b628eaa35
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/BundledComponentCollection.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class BundledComponentCollection implements \Countable, \IteratorAggregate {
+    /** @var BundledComponent[] */
+    private $bundledComponents = [];
+
+    public function add(BundledComponent $bundledComponent): void {
+        $this->bundledComponents[] = $bundledComponent;
+    }
+
+    /**
+     * @return BundledComponent[]
+     */
+    public function getBundledComponents(): array {
+        return $this->bundledComponents;
+    }
+
+    public function count(): int {
+        return \count($this->bundledComponents);
+    }
+
+    public function getIterator(): BundledComponentCollectionIterator {
+        return new BundledComponentCollectionIterator($this);
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/BundledComponentCollectionIterator.php b/vendor/phar-io/manifest/src/values/BundledComponentCollectionIterator.php
new file mode 100644
index 000000000..462db45a1
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/BundledComponentCollectionIterator.php
@@ -0,0 +1,42 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class BundledComponentCollectionIterator implements \Iterator {
+    /** @var BundledComponent[] */
+    private $bundledComponents;
+
+    /** @var int */
+    private $position = 0;
+
+    public function __construct(BundledComponentCollection $bundledComponents) {
+        $this->bundledComponents = $bundledComponents->getBundledComponents();
+    }
+
+    public function rewind(): void {
+        $this->position = 0;
+    }
+
+    public function valid(): bool {
+        return $this->position < \count($this->bundledComponents);
+    }
+
+    public function key(): int {
+        return $this->position;
+    }
+
+    public function current(): BundledComponent {
+        return $this->bundledComponents[$this->position];
+    }
+
+    public function next(): void {
+        $this->position++;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/CopyrightInformation.php b/vendor/phar-io/manifest/src/values/CopyrightInformation.php
new file mode 100644
index 000000000..d26f94721
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/CopyrightInformation.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class CopyrightInformation {
+    /** @var AuthorCollection */
+    private $authors;
+
+    /** @var License */
+    private $license;
+
+    public function __construct(AuthorCollection $authors, License $license) {
+        $this->authors = $authors;
+        $this->license = $license;
+    }
+
+    public function getAuthors(): AuthorCollection {
+        return $this->authors;
+    }
+
+    public function getLicense(): License {
+        return $this->license;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/Email.php b/vendor/phar-io/manifest/src/values/Email.php
new file mode 100644
index 000000000..588348d89
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/Email.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class Email {
+    /** @var string */
+    private $email;
+
+    public function __construct(string $email) {
+        $this->ensureEmailIsValid($email);
+
+        $this->email = $email;
+    }
+
+    public function asString(): string {
+        return $this->email;
+    }
+
+    private function ensureEmailIsValid(string $url): void {
+        if (\filter_var($url, \FILTER_VALIDATE_EMAIL) === false) {
+            throw new InvalidEmailException;
+        }
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/Extension.php b/vendor/phar-io/manifest/src/values/Extension.php
new file mode 100644
index 000000000..4c5726f8a
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/Extension.php
@@ -0,0 +1,46 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+use PharIo\Version\Version;
+use PharIo\Version\VersionConstraint;
+
+class Extension extends Type {
+    /** @var ApplicationName */
+    private $application;
+
+    /** @var VersionConstraint */
+    private $versionConstraint;
+
+    public function __construct(ApplicationName $application, VersionConstraint $versionConstraint) {
+        $this->application       = $application;
+        $this->versionConstraint = $versionConstraint;
+    }
+
+    public function getApplicationName(): ApplicationName {
+        return $this->application;
+    }
+
+    public function getVersionConstraint(): VersionConstraint {
+        return $this->versionConstraint;
+    }
+
+    public function isExtension(): bool {
+        return true;
+    }
+
+    public function isExtensionFor(ApplicationName $name): bool {
+        return $this->application->isEqual($name);
+    }
+
+    public function isCompatibleWith(ApplicationName $name, Version $version): bool {
+        return $this->isExtensionFor($name) && $this->versionConstraint->complies($version);
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/Library.php b/vendor/phar-io/manifest/src/values/Library.php
new file mode 100644
index 000000000..21849e137
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/Library.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class Library extends Type {
+    public function isLibrary(): bool {
+        return true;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/License.php b/vendor/phar-io/manifest/src/values/License.php
new file mode 100644
index 000000000..39542fe87
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/License.php
@@ -0,0 +1,31 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class License {
+    /** @var string */
+    private $name;
+
+    /** @var Url */
+    private $url;
+
+    public function __construct(string $name, Url $url) {
+        $this->name = $name;
+        $this->url  = $url;
+    }
+
+    public function getName(): string {
+        return $this->name;
+    }
+
+    public function getUrl(): Url {
+        return $this->url;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/Manifest.php b/vendor/phar-io/manifest/src/values/Manifest.php
new file mode 100644
index 000000000..0140b842b
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/Manifest.php
@@ -0,0 +1,92 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+use PharIo\Version\Version;
+
+class Manifest {
+    /** @var ApplicationName */
+    private $name;
+
+    /** @var Version */
+    private $version;
+
+    /** @var Type */
+    private $type;
+
+    /** @var CopyrightInformation */
+    private $copyrightInformation;
+
+    /** @var RequirementCollection */
+    private $requirements;
+
+    /** @var BundledComponentCollection */
+    private $bundledComponents;
+
+    public function __construct(ApplicationName $name, Version $version, Type $type, CopyrightInformation $copyrightInformation, RequirementCollection $requirements, BundledComponentCollection $bundledComponents) {
+        $this->name                 = $name;
+        $this->version              = $version;
+        $this->type                 = $type;
+        $this->copyrightInformation = $copyrightInformation;
+        $this->requirements         = $requirements;
+        $this->bundledComponents    = $bundledComponents;
+    }
+
+    public function getName(): ApplicationName {
+        return $this->name;
+    }
+
+    public function getVersion(): Version {
+        return $this->version;
+    }
+
+    public function getType(): Type {
+        return $this->type;
+    }
+
+    public function getCopyrightInformation(): CopyrightInformation {
+        return $this->copyrightInformation;
+    }
+
+    public function getRequirements(): RequirementCollection {
+        return $this->requirements;
+    }
+
+    public function getBundledComponents(): BundledComponentCollection {
+        return $this->bundledComponents;
+    }
+
+    public function isApplication(): bool {
+        return $this->type->isApplication();
+    }
+
+    public function isLibrary(): bool {
+        return $this->type->isLibrary();
+    }
+
+    public function isExtension(): bool {
+        return $this->type->isExtension();
+    }
+
+    public function isExtensionFor(ApplicationName $application, Version $version = null): bool {
+        if (!$this->isExtension()) {
+            return false;
+        }
+
+        /** @var Extension $type */
+        $type = $this->type;
+
+        if ($version !== null) {
+            return $type->isCompatibleWith($application, $version);
+        }
+
+        return $type->isExtensionFor($application);
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/PhpExtensionRequirement.php b/vendor/phar-io/manifest/src/values/PhpExtensionRequirement.php
new file mode 100644
index 000000000..088f38584
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/PhpExtensionRequirement.php
@@ -0,0 +1,23 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class PhpExtensionRequirement implements Requirement {
+    /** @var string */
+    private $extension;
+
+    public function __construct(string $extension) {
+        $this->extension = $extension;
+    }
+
+    public function asString(): string {
+        return $this->extension;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/PhpVersionRequirement.php b/vendor/phar-io/manifest/src/values/PhpVersionRequirement.php
new file mode 100644
index 000000000..f8d6f6d13
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/PhpVersionRequirement.php
@@ -0,0 +1,25 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+use PharIo\Version\VersionConstraint;
+
+class PhpVersionRequirement implements Requirement {
+    /** @var VersionConstraint */
+    private $versionConstraint;
+
+    public function __construct(VersionConstraint $versionConstraint) {
+        $this->versionConstraint = $versionConstraint;
+    }
+
+    public function getVersionConstraint(): VersionConstraint {
+        return $this->versionConstraint;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/Requirement.php b/vendor/phar-io/manifest/src/values/Requirement.php
new file mode 100644
index 000000000..8b845d6a0
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/Requirement.php
@@ -0,0 +1,13 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+interface Requirement {
+}
diff --git a/vendor/phar-io/manifest/src/values/RequirementCollection.php b/vendor/phar-io/manifest/src/values/RequirementCollection.php
new file mode 100644
index 000000000..b82cd955e
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/RequirementCollection.php
@@ -0,0 +1,34 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class RequirementCollection implements \Countable, \IteratorAggregate {
+    /** @var Requirement[] */
+    private $requirements = [];
+
+    public function add(Requirement $requirement): void {
+        $this->requirements[] = $requirement;
+    }
+
+    /**
+     * @return Requirement[]
+     */
+    public function getRequirements(): array {
+        return $this->requirements;
+    }
+
+    public function count(): int {
+        return \count($this->requirements);
+    }
+
+    public function getIterator(): RequirementCollectionIterator {
+        return new RequirementCollectionIterator($this);
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/RequirementCollectionIterator.php b/vendor/phar-io/manifest/src/values/RequirementCollectionIterator.php
new file mode 100644
index 000000000..5614eaf7f
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/RequirementCollectionIterator.php
@@ -0,0 +1,42 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class RequirementCollectionIterator implements \Iterator {
+    /** @var Requirement[] */
+    private $requirements;
+
+    /** @var int */
+    private $position = 0;
+
+    public function __construct(RequirementCollection $requirements) {
+        $this->requirements = $requirements->getRequirements();
+    }
+
+    public function rewind(): void {
+        $this->position = 0;
+    }
+
+    public function valid(): bool {
+        return $this->position < \count($this->requirements);
+    }
+
+    public function key(): int {
+        return $this->position;
+    }
+
+    public function current(): Requirement {
+        return $this->requirements[$this->position];
+    }
+
+    public function next(): void {
+        $this->position++;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/Type.php b/vendor/phar-io/manifest/src/values/Type.php
new file mode 100644
index 000000000..23b289805
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/Type.php
@@ -0,0 +1,41 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+use PharIo\Version\VersionConstraint;
+
+abstract class Type {
+    public static function application(): Application {
+        return new Application;
+    }
+
+    public static function library(): Library {
+        return new Library;
+    }
+
+    public static function extension(ApplicationName $application, VersionConstraint $versionConstraint): Extension {
+        return new Extension($application, $versionConstraint);
+    }
+
+    /** @psalm-assert-if-true Application $this */
+    public function isApplication(): bool {
+        return false;
+    }
+
+    /** @psalm-assert-if-true Library $this */
+    public function isLibrary(): bool {
+        return false;
+    }
+
+    /** @psalm-assert-if-true Extension $this */
+    public function isExtension(): bool {
+        return false;
+    }
+}
diff --git a/vendor/phar-io/manifest/src/values/Url.php b/vendor/phar-io/manifest/src/values/Url.php
new file mode 100644
index 000000000..639525333
--- /dev/null
+++ b/vendor/phar-io/manifest/src/values/Url.php
@@ -0,0 +1,36 @@
+<?php declare(strict_types = 1);
+/*
+ * This file is part of PharIo\Manifest.
+ *
+ * (c) Arne Blankerts <[email protected]>, Sebastian Heuer <[email protected]>, Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PharIo\Manifest;
+
+class Url {
+    /** @var string */
+    private $url;
+
+    public function __construct(string $url) {
+        $this->ensureUrlIsValid($url);
+
+        $this->url = $url;
+    }
+
+    public function asString(): string {
+        return $this->url;
+    }
+
+    /**
+     * @param string $url
+     *
+     * @throws InvalidUrlException
+     */
+    private function ensureUrlIsValid($url): void {
+        if (\filter_var($url, \FILTER_VALIDATE_URL) === false) {
+            throw new InvalidUrlException;
+        }
+    }
+}