Fix return types

Author: nicolas-grekas

Transport/AbstractTransport.php

@@ -41,7 +41,7 @@ public function __construct(EventDispatcherInterface $dispatcher = null, LoggerI
      *
      * @return $this
      */
-    public function setMaxPerSecond(float $rate): self
+    public function setMaxPerSecond(float $rate): static
     {
         if (0 >= $rate) {
             $rate = 0;

Transport/Smtp/EsmtpTransport.php

@@ -66,7 +66,7 @@ public function __construct(string $host = 'localhost', int $port = 0, bool $tls
     /**
      * @return $this
      */
-    public function setUsername(string $username): self
+    public function setUsername(string $username): static
     {
         $this->username = $username;
 
@@ -81,7 +81,7 @@ public function getUsername(): string
     /**
      * @return $this
      */
-    public function setPassword(string $password): self
+    public function setPassword(string $password): static
     {
         $this->password = $password;
 

Transport/Smtp/SmtpTransport.php

@@ -62,7 +62,7 @@ public function getStream(): AbstractStream
      *
      * @return $this
      */
-    public function setRestartThreshold(int $threshold, int $sleep = 0): self
+    public function setRestartThreshold(int $threshold, int $sleep = 0): static
     {
         $this->restartThreshold = $threshold;
         $this->restartThresholdSleep = $sleep;
@@ -104,7 +104,7 @@ public function setPingThreshold(int $seconds): static
      *
      * @return $this
      */
-    public function setLocalDomain(string $domain): self
+    public function setLocalDomain(string $domain): static
     {
         if ('' !== $domain && '[' !== $domain[0]) {
             if (filter_var($domain, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV4)) {

Transport/Smtp/Stream/SocketStream.php

@@ -34,7 +34,7 @@ final class SocketStream extends AbstractStream
     /**
      * @return $this
      */
-    public function setTimeout(float $timeout): self
+    public function setTimeout(float $timeout): static
     {
         $this->timeout = $timeout;
 
@@ -51,7 +51,7 @@ public function getTimeout(): float
      *
      * @return $this
      */
-    public function setHost(string $host): self
+    public function setHost(string $host): static
     {
         $this->host = $host;
 
@@ -66,7 +66,7 @@ public function getHost(): string
     /**
      * @return $this
      */
-    public function setPort(int $port): self
+    public function setPort(int $port): static
     {
         $this->port = $port;
 
@@ -83,7 +83,7 @@ public function getPort(): int
      *
      * @return $this
      */
-    public function disableTls(): self
+    public function disableTls(): static
     {
         $this->tls = false;
 
@@ -98,7 +98,7 @@ public function isTLS(): bool
     /**
      * @return $this
      */
-    public function setStreamOptions(array $options): self
+    public function setStreamOptions(array $options): static
     {
         $this->streamContextOptions = $options;
 
@@ -117,7 +117,7 @@ public function getStreamOptions(): array
      *
      * @return $this
      */
-    public function setSourceIp(string $ip): self
+    public function setSourceIp(string $ip): static
     {
         $this->sourceIp = $ip;