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Fix reported implicit nullable types #3

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Fix reported implicit nullable types #3

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2 changes: 1 addition & 1 deletion src/CSSList/Document.php
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Original file line number Diff line number Diff line change
Expand Up @@ -159,7 +159,7 @@ public function createShorthands()
*
* @return string
*/
public function render($oOutputFormat = null)
public function render(?OutputFormat $oOutputFormat = null)
{
if ($oOutputFormat === null) {
$oOutputFormat = new OutputFormat();
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2 changes: 1 addition & 1 deletion src/Parser.php
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Expand Up @@ -21,7 +21,7 @@ class Parser
* @param Settings|null $oParserSettings
* @param int $iLineNo the line number (starting from 1, not from 0)
*/
public function __construct($sText, $oParserSettings = null, $iLineNo = 1)
public function __construct($sText, ?Settings $oParserSettings = null, $iLineNo = 1)
{
if ($oParserSettings === null) {
$oParserSettings = Settings::create();
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2 changes: 1 addition & 1 deletion src/RuleSet/RuleSet.php
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Expand Up @@ -102,7 +102,7 @@ public function getLineNo()
*
* @return void
*/
public function addRule(Rule $oRule, $oSibling = null)
public function addRule(Rule $oRule, ?Rule $oSibling = null)
{
$sRule = $oRule->getRule();
if (!isset($this->aRules[$sRule])) {
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