Add return typehints

composer.json

@@ -20,7 +20,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "1.1.x-dev"
+            "dev-master": "2.0.x-dev"
         }
     }
 }

src/MessageInterface.php

@@ -25,7 +25,7 @@ interface MessageInterface
      *
      * @return string HTTP protocol version.
      */
-    public function getProtocolVersion();
+    public function getProtocolVersion(): string;
 
     /**
      * Return an instance with the specified HTTP protocol version.
@@ -40,7 +40,7 @@ public function getProtocolVersion();
      * @param string $version HTTP protocol version
      * @return static
      */
-    public function withProtocolVersion(string $version);
+    public function withProtocolVersion(string $version): MessageInterface;
 
     /**
      * Retrieves all message header values.
@@ -67,7 +67,7 @@ public function withProtocolVersion(string $version);
      *     key MUST be a header name, and each value MUST be an array of strings
      *     for that header.
      */
-    public function getHeaders();
+    public function getHeaders(): array;
 
     /**
      * Checks if a header exists by the given case-insensitive name.
@@ -77,7 +77,7 @@ public function getHeaders();
      *     name using a case-insensitive string comparison. Returns false if
      *     no matching header name is found in the message.
      */
-    public function hasHeader(string $name);
+    public function hasHeader(string $name): bool;
 
     /**
      * Retrieves a message header value by the given case-insensitive name.
@@ -93,7 +93,7 @@ public function hasHeader(string $name);
      *    header. If the header does not appear in the message, this method MUST
      *    return an empty array.
      */
-    public function getHeader(string $name);
+    public function getHeader(string $name): array;
 
     /**
      * Retrieves a comma-separated string of the values for a single header.
@@ -114,7 +114,7 @@ public function getHeader(string $name);
      *    concatenated together using a comma. If the header does not appear in
      *    the message, this method MUST return an empty string.
      */
-    public function getHeaderLine(string $name);
+    public function getHeaderLine(string $name): string;
 
     /**
      * Return an instance with the provided value replacing the specified header.
@@ -131,7 +131,7 @@ public function getHeaderLine(string $name);
      * @return static
      * @throws \InvalidArgumentException for invalid header names or values.
      */
-    public function withHeader(string $name, $value);
+    public function withHeader(string $name, $value): MessageInterface;
 
     /**
      * Return an instance with the specified header appended with the given value.
@@ -149,7 +149,7 @@ public function withHeader(string $name, $value);
      * @return static
      * @throws \InvalidArgumentException for invalid header names or values.
      */
-    public function withAddedHeader(string $name, $value);
+    public function withAddedHeader(string $name, $value): MessageInterface;
 
     /**
      * Return an instance without the specified header.
@@ -163,14 +163,14 @@ public function withAddedHeader(string $name, $value);
      * @param string $name Case-insensitive header field name to remove.
      * @return static
      */
-    public function withoutHeader(string $name);
+    public function withoutHeader(string $name): MessageInterface;
 
     /**
      * Gets the body of the message.
      *
      * @return StreamInterface Returns the body as a stream.
      */
-    public function getBody();
+    public function getBody(): StreamInterface;
 
     /**
      * Return an instance with the specified message body.
@@ -185,5 +185,5 @@ public function getBody();
      * @return static
      * @throws \InvalidArgumentException When the body is not valid.
      */
-    public function withBody(StreamInterface $body);
+    public function withBody(StreamInterface $body): MessageInterface;
 }

src/RequestInterface.php

@@ -41,7 +41,7 @@ interface RequestInterface extends MessageInterface
      *
      * @return string
      */
-    public function getRequestTarget();
+    public function getRequestTarget(): string;
 
     /**
      * Return an instance with the specific request-target.
@@ -60,14 +60,14 @@ public function getRequestTarget();
      * @param mixed $requestTarget
      * @return static
      */
-    public function withRequestTarget($requestTarget);
+    public function withRequestTarget($requestTarget): RequestInterface;
 
     /**
      * Retrieves the HTTP method of the request.
      *
      * @return string Returns the request method.
      */
-    public function getMethod();
+    public function getMethod(): string;
 
     /**
      * Return an instance with the provided HTTP method.
@@ -84,7 +84,7 @@ public function getMethod();
      * @return static
      * @throws \InvalidArgumentException for invalid HTTP methods.
      */
-    public function withMethod(string $method);
+    public function withMethod(string $method): RequestInterface;
 
     /**
      * Retrieves the URI instance.
@@ -95,7 +95,7 @@ public function withMethod(string $method);
      * @return UriInterface Returns a UriInterface instance
      *     representing the URI of the request.
      */
-    public function getUri();
+    public function getUri(): UriInterface;
 
     /**
      * Returns an instance with the provided URI.
@@ -127,5 +127,5 @@ public function getUri();
      * @param bool $preserveHost Preserve the original state of the Host header.
      * @return static
      */
-    public function withUri(UriInterface $uri, bool $preserveHost = false);
+    public function withUri(UriInterface $uri, bool $preserveHost = false): RequestInterface;
 }

src/ResponseInterface.php

@@ -29,7 +29,7 @@ interface ResponseInterface extends MessageInterface
      *
      * @return int Status code.
      */
-    public function getStatusCode();
+    public function getStatusCode(): int;
 
     /**
      * Return an instance with the specified status code and, optionally, reason phrase.
@@ -51,7 +51,7 @@ public function getStatusCode();
      * @return static
      * @throws \InvalidArgumentException For invalid status code arguments.
      */
-    public function withStatus(int $code, string $reasonPhrase = '');
+    public function withStatus(int $code, string $reasonPhrase = ''): ResponseInterface;
 
     /**
      * Gets the response reason phrase associated with the status code.
@@ -66,5 +66,5 @@ public function withStatus(int $code, string $reasonPhrase = '');
      * @link http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
      * @return string Reason phrase; must return an empty string if none present.
      */
-    public function getReasonPhrase();
+    public function getReasonPhrase(): string;
 }

src/ServerRequestInterface.php

@@ -53,7 +53,7 @@ interface ServerRequestInterface extends RequestInterface
      *
      * @return array
      */
-    public function getServerParams();
+    public function getServerParams(): array;
 
     /**
      * Retrieve cookies.
@@ -65,7 +65,7 @@ public function getServerParams();
      *
      * @return array
      */
-    public function getCookieParams();
+    public function getCookieParams(): array;
 
     /**
      * Return an instance with the specified cookies.
@@ -84,7 +84,7 @@ public function getCookieParams();
      * @param array $cookies Array of key/value pairs representing cookies.
      * @return static
      */
-    public function withCookieParams(array $cookies);
+    public function withCookieParams(array $cookies): ServerRequestInterface;
 
     /**
      * Retrieve query string arguments.
@@ -98,7 +98,7 @@ public function withCookieParams(array $cookies);
      *
      * @return array
      */
-    public function getQueryParams();
+    public function getQueryParams(): array;
 
     /**
      * Return an instance with the specified query string arguments.
@@ -122,7 +122,7 @@ public function getQueryParams();
      *     $_GET.
      * @return static
      */
-    public function withQueryParams(array $query);
+    public function withQueryParams(array $query): ServerRequestInterface;
 
     /**
      * Retrieve normalized file upload data.
@@ -136,7 +136,7 @@ public function withQueryParams(array $query);
      * @return array An array tree of UploadedFileInterface instances; an empty
      *     array MUST be returned if no data is present.
      */
-    public function getUploadedFiles();
+    public function getUploadedFiles(): array;
 
     /**
      * Create a new instance with the specified uploaded files.
@@ -149,7 +149,7 @@ public function getUploadedFiles();
      * @return static
      * @throws \InvalidArgumentException if an invalid structure is provided.
      */
-    public function withUploadedFiles(array $uploadedFiles);
+    public function withUploadedFiles(array $uploadedFiles): ServerRequestInterface;
 
     /**
      * Retrieve any parameters provided in the request body.
@@ -196,7 +196,7 @@ public function getParsedBody();
      * @throws \InvalidArgumentException if an unsupported argument type is
      *     provided.
      */
-    public function withParsedBody($data);
+    public function withParsedBody($data): ServerRequestInterface;
 
     /**
      * Retrieve attributes derived from the request.
@@ -209,7 +209,7 @@ public function withParsedBody($data);
      *
      * @return array Attributes derived from the request.
      */
-    public function getAttributes();
+    public function getAttributes(): array;
 
     /**
      * Retrieve a single derived request attribute.
@@ -243,7 +243,7 @@ public function getAttribute(string $name, $default = null);
      * @param mixed $value The value of the attribute.
      * @return static
      */
-    public function withAttribute(string $name, $value);
+    public function withAttribute(string $name, $value): ServerRequestInterface;
 
     /**
      * Return an instance that removes the specified derived request attribute.
@@ -259,5 +259,5 @@ public function withAttribute(string $name, $value);
      * @param string $name The attribute name.
      * @return static
      */
-    public function withoutAttribute(string $name);
+    public function withoutAttribute(string $name): ServerRequestInterface;
 }

src/StreamInterface.php

@@ -50,29 +50,29 @@ public function detach();
      *
      * @return int|null Returns the size in bytes if known, or null if unknown.
      */
-    public function getSize();
+    public function getSize(): ?int;
 
     /**
      * Returns the current position of the file read/write pointer
      *
      * @return int Position of the file pointer
      * @throws \RuntimeException on error.
      */
-    public function tell();
+    public function tell(): int;
 
     /**
      * Returns true if the stream is at the end of the stream.
      *
      * @return bool
      */
-    public function eof();
+    public function eof(): bool;
 
     /**
      * Returns whether or not the stream is seekable.
      *
      * @return bool
      */
-    public function isSeekable();
+    public function isSeekable(): bool;
 
     /**
      * Seek to a position in the stream.
@@ -105,7 +105,7 @@ public function rewind();
      *
      * @return bool
      */
-    public function isWritable();
+    public function isWritable(): bool;
 
     /**
      * Write data to the stream.
@@ -114,14 +114,14 @@ public function isWritable();
      * @return int Returns the number of bytes written to the stream.
      * @throws \RuntimeException on failure.
      */
-    public function write(string $string);
+    public function write(string $string): int;
 
     /**
      * Returns whether or not the stream is readable.
      *
      * @return bool
      */
-    public function isReadable();
+    public function isReadable(): bool;
 
     /**
      * Read data from the stream.
@@ -133,7 +133,7 @@ public function isReadable();
      *     if no bytes are available.
      * @throws \RuntimeException if an error occurs.
      */
-    public function read(int $length);
+    public function read(int $length): string;
 
     /**
      * Returns the remaining contents in a string
@@ -142,7 +142,7 @@ public function read(int $length);
      * @throws \RuntimeException if unable to read or an error occurs while
      *     reading.
      */
-    public function getContents();
+    public function getContents(): string;
 
     /**
      * Get stream metadata as an associative array or retrieve a specific key.

src/UploadedFileInterface.php

@@ -30,7 +30,7 @@ interface UploadedFileInterface
      * @throws \RuntimeException in cases when no stream is available or can be
      *     created.
      */
-    public function getStream();
+    public function getStream(): StreamInterface;
 
     /**
      * Move the uploaded file to a new location.
@@ -75,7 +75,7 @@ public function moveTo(string $targetPath);
      *
      * @return int|null The file size in bytes or null if unknown.
      */
-    public function getSize();
+    public function getSize(): ?int;
 
     /**
      * Retrieve the error associated with the uploaded file.
@@ -91,7 +91,7 @@ public function getSize();
      * @see http://php.net/manual/en/features.file-upload.errors.php
      * @return int One of PHP's UPLOAD_ERR_XXX constants.
      */
-    public function getError();
+    public function getError(): int;
 
     /**
      * Retrieve the filename sent by the client.
@@ -106,7 +106,7 @@ public function getError();
      * @return string|null The filename sent by the client or null if none
      *     was provided.
      */
-    public function getClientFilename();
+    public function getClientFilename(): ?string;
 
     /**
      * Retrieve the media type sent by the client.
@@ -121,5 +121,5 @@ public function getClientFilename();
      * @return string|null The media type sent by the client or null if none
      *     was provided.
      */
-    public function getClientMediaType();
+    public function getClientMediaType(): ?string;
 }