* Add support for`!php/enum` and`!php/enum *->value`

* Deprecate the`!php/const:` tag in key which will be replaced by the`!php/const` tag (without the colon) since 3.4

6.1

array_pop($this->refsBeingParsed);

}

}elseif (

self::preg_match('#^(?P<key>(?:![^\s]++\s++)?(?:'.Inline::REGEX_QUOTED_STRING.'|[^\'"\[\{!].*?)) *\:(( |\t)++(?P<value>.+))?$#u',rtrim($this->currentLine),$values)

self::preg_match('#^(?P<key>(?:![^\s]++\s++)?(?:'.Inline::REGEX_QUOTED_STRING.'|(?:!?!php/const:)?[^\'"\[\{!].*?)) *\:(( |\t)++(?P<value>.+))?$#u',rtrim($this->currentLine),$values)

&& (!str_contains($values['key'],' #') ||\in_array($values['key'][0], ['"',"'"]))

) {

if (str_starts_with($values['key'],'!php/const:')) {

trigger_deprecation('symfony/yaml','6.2','YAML syntax for key "%s" is deprecated and replaced by "!php/const %s".',$values['key'],substr($values['key'],11));

}

if ($context &&'sequence' ==$context) {

thrownewParseException('You cannot define a mapping item when in a sequence.',$this->currentLineNb +1,$this->currentLine,$this->filename);

}

namespaceSymfony\Component\Yaml\Tests;

usePHPUnit\Framework\TestCase;

useSymfony\Bridge\PhpUnit\ExpectDeprecationTrait;

useSymfony\Component\Yaml\Exception\ParseException;

useSymfony\Component\Yaml\Parser;

useSymfony\Component\Yaml\Tag\TaggedValue;

useSymfony\Component\Yaml\Yaml;

class ParserTestextends TestCase

{

protected$parser;

use ExpectDeprecationTrait;

private ?Parser$parser;

protectedfunctionsetUp():void

{

publicfunctiontestParserThrowsExceptionWithCorrectLineNumber($lineNumber,$yaml)

$this->parser->parse('!php/const:App\Kernel::SEMART_VERSION', Yaml::PARSE_CUSTOM_TAGS | Yaml::PARSE_CONSTANT);

}

publicfunctiontestDeprecatedPhpConstantSyntaxAsScalarKey()

{

$this->expectDeprecation('Since symfony/yaml 6.2: YAML syntax for key "!php/const:Symfony\Component\Yaml\Tests\B::BAR" is deprecated and replaced by "!php/const Symfony\Component\Yaml\Tests\B::BAR".');

$actual =$this->parser->parse('!php/const:Symfony\Component\Yaml\Tests\B::BAR: value', Yaml::PARSE_CUSTOM_TAGS | Yaml::PARSE_CONSTANT);

$this->assertSame(['bar' =>'value'],$actual);

}

publicfunctiontestPhpConstantTagMappingAsScalarKey()

{

$yaml =<<<YAML