16018263876

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/src/Fixer/LanguageConstruct/SingleSpaceAroundConstructFixer.php

<?php

declare(strict_types=1);

/*
 * This file is part of PHP CS Fixer.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *     Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace PhpCsFixer\Fixer\LanguageConstruct;

use PhpCsFixer\AbstractFixer;
use PhpCsFixer\Fixer\ConfigurableFixerInterface;
use PhpCsFixer\Fixer\ConfigurableFixerTrait;
use PhpCsFixer\FixerConfiguration\AllowedValueSubset;
use PhpCsFixer\FixerConfiguration\FixerConfigurationResolver;
use PhpCsFixer\FixerConfiguration\FixerConfigurationResolverInterface;
use PhpCsFixer\FixerConfiguration\FixerOptionBuilder;
use PhpCsFixer\FixerDefinition\CodeSample;
use PhpCsFixer\FixerDefinition\FixerDefinition;
use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
use PhpCsFixer\Preg;
use PhpCsFixer\Tokenizer\CT;
use PhpCsFixer\Tokenizer\FCT;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;

/**
 * @author Andreas Möller <am@localheinz.com>
 * @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * @implements ConfigurableFixerInterface<_AutogeneratedInputConfiguration, _AutogeneratedComputedConfiguration>
 *
 * @phpstan-type _AutogeneratedInputConfiguration array{
 *  constructs_contain_a_single_space?: list<'yield_from'>,
 *  constructs_followed_by_a_single_space?: list<'abstract'|'as'|'attribute'|'break'|'case'|'catch'|'class'|'clone'|'comment'|'const'|'const_import'|'continue'|'do'|'echo'|'else'|'elseif'|'enum'|'extends'|'final'|'finally'|'for'|'foreach'|'function'|'function_import'|'global'|'goto'|'if'|'implements'|'include'|'include_once'|'instanceof'|'insteadof'|'interface'|'match'|'named_argument'|'namespace'|'new'|'open_tag_with_echo'|'php_doc'|'php_open'|'print'|'private'|'private_set'|'protected'|'protected_set'|'public'|'public_set'|'readonly'|'require'|'require_once'|'return'|'static'|'switch'|'throw'|'trait'|'try'|'type_colon'|'use'|'use_lambda'|'use_trait'|'var'|'while'|'yield'|'yield_from'>,
 *  constructs_preceded_by_a_single_space?: list<'as'|'else'|'elseif'|'use_lambda'>,
 * }
 * @phpstan-type _AutogeneratedComputedConfiguration array{
 *  constructs_contain_a_single_space: list<'yield_from'>,
 *  constructs_followed_by_a_single_space: list<'abstract'|'as'|'attribute'|'break'|'case'|'catch'|'class'|'clone'|'comment'|'const'|'const_import'|'continue'|'do'|'echo'|'else'|'elseif'|'enum'|'extends'|'final'|'finally'|'for'|'foreach'|'function'|'function_import'|'global'|'goto'|'if'|'implements'|'include'|'include_once'|'instanceof'|'insteadof'|'interface'|'match'|'named_argument'|'namespace'|'new'|'open_tag_with_echo'|'php_doc'|'php_open'|'print'|'private'|'private_set'|'protected'|'protected_set'|'public'|'public_set'|'readonly'|'require'|'require_once'|'return'|'static'|'switch'|'throw'|'trait'|'try'|'type_colon'|'use'|'use_lambda'|'use_trait'|'var'|'while'|'yield'|'yield_from'>,
 *  constructs_preceded_by_a_single_space: list<'as'|'else'|'elseif'|'use_lambda'>,
 * }
 */
final class SingleSpaceAroundConstructFixer extends AbstractFixer implements ConfigurableFixerInterface
{
    /** @use ConfigurableFixerTrait<_AutogeneratedInputConfiguration, _AutogeneratedComputedConfiguration> */
    use ConfigurableFixerTrait;

    /**
     * @var array<string, int>
     */
    private const TOKEN_MAP_CONTAIN_A_SINGLE_SPACE = [
        // for now, only one case - but we are ready to extend it, when we learn about new cases to cover
        'yield_from' => T_YIELD_FROM,
    ];

    /**
     * @var array<string, int>
     */
    private const TOKEN_MAP_PRECEDED_BY_A_SINGLE_SPACE = [
        'as' => T_AS,
        'else' => T_ELSE,
        'elseif' => T_ELSEIF,
        'use_lambda' => CT::T_USE_LAMBDA,
    ];

    /**
     * @var array<string, int>
     */
    private const TOKEN_MAP_FOLLOWED_BY_A_SINGLE_SPACE = [
        'abstract' => T_ABSTRACT,
        'as' => T_AS,
        'attribute' => CT::T_ATTRIBUTE_CLOSE,
        'break' => T_BREAK,
        'case' => T_CASE,
        'catch' => T_CATCH,
        'class' => T_CLASS,
        'clone' => T_CLONE,
        'comment' => T_COMMENT,
        'const' => T_CONST,
        'const_import' => CT::T_CONST_IMPORT,
        'continue' => T_CONTINUE,
        'do' => T_DO,
        'echo' => T_ECHO,
        'else' => T_ELSE,
        'elseif' => T_ELSEIF,
        'enum' => FCT::T_ENUM,
        'extends' => T_EXTENDS,
        'final' => T_FINAL,
        'finally' => T_FINALLY,
        'for' => T_FOR,
        'foreach' => T_FOREACH,
        'function' => T_FUNCTION,
        'function_import' => CT::T_FUNCTION_IMPORT,
        'global' => T_GLOBAL,
        'goto' => T_GOTO,
        'if' => T_IF,
        'implements' => T_IMPLEMENTS,
        'include' => T_INCLUDE,
        'include_once' => T_INCLUDE_ONCE,
        'instanceof' => T_INSTANCEOF,
        'insteadof' => T_INSTEADOF,
        'interface' => T_INTERFACE,
        'match' => FCT::T_MATCH,
        'named_argument' => CT::T_NAMED_ARGUMENT_COLON,
        'namespace' => T_NAMESPACE,
        'new' => T_NEW,
        'open_tag_with_echo' => T_OPEN_TAG_WITH_ECHO,
        'php_doc' => T_DOC_COMMENT,
        'php_open' => T_OPEN_TAG,
        'print' => T_PRINT,
        'private' => T_PRIVATE,
        'private_set' => FCT::T_PRIVATE_SET,
        'protected' => T_PROTECTED,
        'protected_set' => FCT::T_PROTECTED_SET,
        'public' => T_PUBLIC,
        'public_set' => FCT::T_PUBLIC_SET,
        'readonly' => FCT::T_READONLY,
        'require' => T_REQUIRE,
        'require_once' => T_REQUIRE_ONCE,
        'return' => T_RETURN,
        'static' => T_STATIC,
        'switch' => T_SWITCH,
        'throw' => T_THROW,
        'trait' => T_TRAIT,
        'try' => T_TRY,
        'type_colon' => CT::T_TYPE_COLON,
        'use' => T_USE,
        'use_lambda' => CT::T_USE_LAMBDA,
        'use_trait' => CT::T_USE_TRAIT,
        'var' => T_VAR,
        'while' => T_WHILE,
        'yield' => T_YIELD,
        'yield_from' => T_YIELD_FROM,
    ];

    /**
     * @var array<string, int>
     */
    private array $fixTokenMapFollowedByASingleSpace = [];

    /**
     * @var array<string, int>
     */
    private array $fixTokenMapContainASingleSpace = [];

    /**
     * @var array<string, int>
     */
    private array $fixTokenMapPrecededByASingleSpace = [];

    public function getDefinition(): FixerDefinitionInterface
    {
        return new FixerDefinition(
            'Ensures a single space after language constructs.',
            [
                new CodeSample(
                    '<?php

throw  new  \Exception();
'
                ),
                new CodeSample(
                    '<?php

function foo() { yield  from  baz(); }
',
                    [
                        'constructs_contain_a_single_space' => [
                            'yield_from',
                        ],
                        'constructs_followed_by_a_single_space' => [
                            'yield_from',
                        ],
                    ]
                ),
                new CodeSample(
                    '<?php

$foo = function& ()use($bar) {
};
',
                    [
                        'constructs_preceded_by_a_single_space' => [
                            'use_lambda',
                        ],
                        'constructs_followed_by_a_single_space' => [
                            'use_lambda',
                        ],
                    ]
                ),
                new CodeSample(
                    '<?php

echo  "Hello!";
',
                    [
                        'constructs_followed_by_a_single_space' => [
                            'echo',
                        ],
                    ]
                ),
                new CodeSample(
                    '<?php

yield  from  baz();
',
                    [
                        'constructs_followed_by_a_single_space' => [
                            'yield_from',
                        ],
                    ]
                ),
            ]
        );
    }

    /**
     * {@inheritdoc}
     *
     * Must run before BracesFixer, FunctionDeclarationFixer.
     * Must run after ArraySyntaxFixer, ModernizeStrposFixer.
     */
    public function getPriority(): int
    {
        return 36;
    }

    public function isCandidate(Tokens $tokens): bool
    {
        $tokenKinds = [
            ...array_values($this->fixTokenMapContainASingleSpace),
            ...array_values($this->fixTokenMapPrecededByASingleSpace),
            ...array_values($this->fixTokenMapFollowedByASingleSpace),
        ];

        return $tokens->isAnyTokenKindsFound($tokenKinds);
    }

    protected function configurePostNormalisation(): void
    {
        $this->fixTokenMapContainASingleSpace = [];

        foreach ($this->configuration['constructs_contain_a_single_space'] as $key) {
            $this->fixTokenMapContainASingleSpace[$key] = self::TOKEN_MAP_CONTAIN_A_SINGLE_SPACE[$key];
        }

        $this->fixTokenMapPrecededByASingleSpace = [];

        foreach ($this->configuration['constructs_preceded_by_a_single_space'] as $key) {
            $this->fixTokenMapPrecededByASingleSpace[$key] = self::TOKEN_MAP_PRECEDED_BY_A_SINGLE_SPACE[$key];
        }

        $this->fixTokenMapFollowedByASingleSpace = [];

        foreach ($this->configuration['constructs_followed_by_a_single_space'] as $key) {
            $this->fixTokenMapFollowedByASingleSpace[$key] = self::TOKEN_MAP_FOLLOWED_BY_A_SINGLE_SPACE[$key];
        }

        if (isset($this->fixTokenMapFollowedByASingleSpace['public'])) {
            $this->fixTokenMapFollowedByASingleSpace['constructor_public'] = CT::T_CONSTRUCTOR_PROPERTY_PROMOTION_PUBLIC;
        }

        if (isset($this->fixTokenMapFollowedByASingleSpace['protected'])) {
            $this->fixTokenMapFollowedByASingleSpace['constructor_protected'] = CT::T_CONSTRUCTOR_PROPERTY_PROMOTION_PROTECTED;
        }

        if (isset($this->fixTokenMapFollowedByASingleSpace['private'])) {
            $this->fixTokenMapFollowedByASingleSpace['constructor_private'] = CT::T_CONSTRUCTOR_PROPERTY_PROMOTION_PRIVATE;
        }
    }

    protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
    {
        $tokenKindsContainASingleSpace = array_values($this->fixTokenMapContainASingleSpace);

        for ($index = $tokens->count() - 1; $index > 0; --$index) {
            if ($tokens[$index]->isGivenKind($tokenKindsContainASingleSpace)) {
                $token = $tokens[$index];

                if (
                    $token->isGivenKind(T_YIELD_FROM)
                    && 'yield from' !== strtolower($token->getContent())
                ) {
                    $tokens[$index] = new Token([T_YIELD_FROM, Preg::replace(
                        '/\s+/',
                        ' ',
                        $token->getContent()
                    )]);
                }
            }
        }

        $tokenKindsPrecededByASingleSpace = array_values($this->fixTokenMapPrecededByASingleSpace);

        for ($index = $tokens->count() - 1; $index > 0; --$index) {
            if ($tokens[$index]->isGivenKind($tokenKindsPrecededByASingleSpace)) {
                if (!$this->isFullLineCommentBefore($tokens, $index)) {
                    $tokens->ensureWhitespaceAtIndex($index - 1, 1, ' ');
                }
            }
        }

        $tokenKindsFollowedByASingleSpace = array_values($this->fixTokenMapFollowedByASingleSpace);

        for ($index = $tokens->count() - 2; $index >= 0; --$index) {
            $token = $tokens[$index];

            if (!$token->isGivenKind($tokenKindsFollowedByASingleSpace)) {
                continue;
            }

            $whitespaceTokenIndex = $index + 1;

            if ($tokens[$whitespaceTokenIndex]->equalsAny([',', ':', ';', ')', [CT::T_ARRAY_SQUARE_BRACE_CLOSE], [CT::T_DESTRUCTURING_SQUARE_BRACE_CLOSE]])) {
                continue;
            }

            if (
                $token->isGivenKind(T_STATIC)
                && !$tokens[$tokens->getNextMeaningfulToken($index)]->isGivenKind([T_FN, T_FUNCTION, T_NS_SEPARATOR, T_STRING, T_VARIABLE, CT::T_ARRAY_TYPEHINT, CT::T_NULLABLE_TYPE])
            ) {
                continue;
            }

            if ($token->isGivenKind(T_OPEN_TAG)) {
                if ($tokens[$whitespaceTokenIndex]->equals([T_WHITESPACE]) && !str_contains($tokens[$whitespaceTokenIndex]->getContent(), "\n") && !str_contains($token->getContent(), "\n")) {
                    $tokens->clearAt($whitespaceTokenIndex);
                }

                continue;
            }

            if ($token->isGivenKind(T_CLASS) && $tokens[$tokens->getNextMeaningfulToken($index)]->equals('(')) {
                continue;
            }

            if ($token->isGivenKind([T_EXTENDS, T_IMPLEMENTS]) && $this->isMultilineExtendsOrImplementsWithMoreThanOneAncestor($tokens, $index)) {
                continue;
            }

            if ($token->isGivenKind(T_RETURN) && $this->isMultiLineReturn($tokens, $index)) {
                continue;
            }

            if ($token->isGivenKind(T_CONST) && $this->isMultilineCommaSeparatedConstant($tokens, $index)) {
                continue;
            }

            if ($token->isComment() || $token->isGivenKind(CT::T_ATTRIBUTE_CLOSE)) {
                if ($tokens[$whitespaceTokenIndex]->equals([T_WHITESPACE]) && str_contains($tokens[$whitespaceTokenIndex]->getContent(), "\n")) {
                    continue;
                }
            }

            if ($tokens[$whitespaceTokenIndex]->isWhitespace() && str_contains($tokens[$whitespaceTokenIndex]->getContent(), "\n")) {
                $nextNextToken = $tokens[$whitespaceTokenIndex + 1];
                if (
                    $nextNextToken->isGivenKind(FCT::T_ATTRIBUTE)
                    || $nextNextToken->isComment() && str_starts_with($nextNextToken->getContent(), '#[')
                ) {
                    continue;
                }

                if ($nextNextToken->isGivenKind(T_DOC_COMMENT)) {
                    continue;
                }
            }

            $tokens->ensureWhitespaceAtIndex($whitespaceTokenIndex, 0, ' ');
        }
    }

    protected function createConfigurationDefinition(): FixerConfigurationResolverInterface
    {
        $tokenMapContainASingleSpaceKeys = array_keys(self::TOKEN_MAP_CONTAIN_A_SINGLE_SPACE);
        $tokenMapPrecededByASingleSpaceKeys = array_keys(self::TOKEN_MAP_PRECEDED_BY_A_SINGLE_SPACE);
        $tokenMapFollowedByASingleSpaceKeys = array_keys(self::TOKEN_MAP_FOLLOWED_BY_A_SINGLE_SPACE);

        return new FixerConfigurationResolver([
            (new FixerOptionBuilder('constructs_contain_a_single_space', 'List of constructs which must contain a single space.'))
                ->setAllowedTypes(['string[]'])
                ->setAllowedValues([new AllowedValueSubset($tokenMapContainASingleSpaceKeys)])
                ->setDefault($tokenMapContainASingleSpaceKeys)
                ->getOption(),
            (new FixerOptionBuilder('constructs_preceded_by_a_single_space', 'List of constructs which must be preceded by a single space.'))
                ->setAllowedTypes(['string[]'])
                ->setAllowedValues([new AllowedValueSubset($tokenMapPrecededByASingleSpaceKeys)])
                ->setDefault(['as', 'use_lambda'])
                ->getOption(),
            (new FixerOptionBuilder('constructs_followed_by_a_single_space', 'List of constructs which must be followed by a single space.'))
                ->setAllowedTypes(['string[]'])
                ->setAllowedValues([new AllowedValueSubset($tokenMapFollowedByASingleSpaceKeys)])
                ->setDefault($tokenMapFollowedByASingleSpaceKeys)
                ->getOption(),
        ]);
    }

    private function isMultiLineReturn(Tokens $tokens, int $index): bool
    {
        ++$index;
        $tokenFollowingReturn = $tokens[$index];

        if (
            !$tokenFollowingReturn->isGivenKind(T_WHITESPACE)
            || !str_contains($tokenFollowingReturn->getContent(), "\n")
        ) {
            return false;
        }

        $nestedCount = 0;

        for ($indexEnd = \count($tokens) - 1, ++$index; $index < $indexEnd; ++$index) {
            if (str_contains($tokens[$index]->getContent(), "\n")) {
                return true;
            }

            if ($tokens[$index]->equals('{')) {
                ++$nestedCount;
            } elseif ($tokens[$index]->equals('}')) {
                --$nestedCount;
            } elseif (0 === $nestedCount && $tokens[$index]->equalsAny([';', [T_CLOSE_TAG]])) {
                break;
            }
        }

        return false;
    }

    private function isMultilineExtendsOrImplementsWithMoreThanOneAncestor(Tokens $tokens, int $index): bool
    {
        $hasMoreThanOneAncestor = false;

        while (true) {
            ++$index;
            $token = $tokens[$index];

            if ($token->equals(',')) {
                $hasMoreThanOneAncestor = true;

                continue;
            }

            if ($token->equals('{')) {
                return false;
            }

            if ($hasMoreThanOneAncestor && str_contains($token->getContent(), "\n")) {
                return true;
            }
        }

        return LogicException('Not reachable code was reached.'); // @phpstan-ignore deadCode.unreachable
    }

    private function isMultilineCommaSeparatedConstant(Tokens $tokens, int $constantIndex): bool
    {
        $isMultilineConstant = false;
        $hasMoreThanOneConstant = false;
        $index = $constantIndex;
        while (!$tokens[$index]->equalsAny([';', [T_CLOSE_TAG]])) {
            ++$index;

            $isMultilineConstant = $isMultilineConstant || str_contains($tokens[$index]->getContent(), "\n");

            if ($tokens[$index]->equals(',')) {
                $hasMoreThanOneConstant = true;
            }

            $blockType = Tokens::detectBlockType($tokens[$index]);

            if (null !== $blockType && true === $blockType['isStart']) {
                $index = $tokens->findBlockEnd($blockType['type'], $index);
            }
        }

        return $hasMoreThanOneConstant && $isMultilineConstant;
    }

    private function isFullLineCommentBefore(Tokens $tokens, int $index): bool
    {
        $beforeIndex = $tokens->getPrevNonWhitespace($index);

        if (!$tokens[$beforeIndex]->isGivenKind([T_COMMENT])) {
            return false;
        }

        $content = $tokens[$beforeIndex]->getContent();

        return str_starts_with($content, '#') || str_starts_with($content, '//');
    }
}

1	<?php
2
3	declare(strict_types=1);
4
5	/*
6	* This file is part of PHP CS Fixer.
7	*
8	* (c) Fabien Potencier <fabien@symfony.com>
9	* Dariusz Rumiński <dariusz.ruminski@gmail.com>
10	*
11	* This source file is subject to the MIT license that is bundled
12	* with this source code in the file LICENSE.
13	*/
14
15	namespace PhpCsFixer\Fixer\LanguageConstruct;
16
17	use PhpCsFixer\AbstractFixer;
18	use PhpCsFixer\Fixer\ConfigurableFixerInterface;
19	use PhpCsFixer\Fixer\ConfigurableFixerTrait;
20	use PhpCsFixer\FixerConfiguration\AllowedValueSubset;
21	use PhpCsFixer\FixerConfiguration\FixerConfigurationResolver;
22	use PhpCsFixer\FixerConfiguration\FixerConfigurationResolverInterface;
23	use PhpCsFixer\FixerConfiguration\FixerOptionBuilder;
24	use PhpCsFixer\FixerDefinition\CodeSample;
25	use PhpCsFixer\FixerDefinition\FixerDefinition;
26	use PhpCsFixer\FixerDefinition\FixerDefinitionInterface;
27	use PhpCsFixer\Preg;
28	use PhpCsFixer\Tokenizer\CT;
29	use PhpCsFixer\Tokenizer\FCT;
30	use PhpCsFixer\Tokenizer\Token;
31	use PhpCsFixer\Tokenizer\Tokens;
32
33	/**
34	* @author Andreas Möller <am@localheinz.com>
35	* @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
36	*
37	* @implements ConfigurableFixerInterface<_AutogeneratedInputConfiguration, _AutogeneratedComputedConfiguration>
38	*
39	* @phpstan-type _AutogeneratedInputConfiguration array{
40	* constructs_contain_a_single_space?: list<'yield_from'>,
41	* constructs_followed_by_a_single_space?: list<'abstract'\|'as'\|'attribute'\|'break'\|'case'\|'catch'\|'class'\|'clone'\|'comment'\|'const'\|'const_import'\|'continue'\|'do'\|'echo'\|'else'\|'elseif'\|'enum'\|'extends'\|'final'\|'finally'\|'for'\|'foreach'\|'function'\|'function_import'\|'global'\|'goto'\|'if'\|'implements'\|'include'\|'include_once'\|'instanceof'\|'insteadof'\|'interface'\|'match'\|'named_argument'\|'namespace'\|'new'\|'open_tag_with_echo'\|'php_doc'\|'php_open'\|'print'\|'private'\|'private_set'\|'protected'\|'protected_set'\|'public'\|'public_set'\|'readonly'\|'require'\|'require_once'\|'return'\|'static'\|'switch'\|'throw'\|'trait'\|'try'\|'type_colon'\|'use'\|'use_lambda'\|'use_trait'\|'var'\|'while'\|'yield'\|'yield_from'>,
42	* constructs_preceded_by_a_single_space?: list<'as'\|'else'\|'elseif'\|'use_lambda'>,
43	* }
44	* @phpstan-type _AutogeneratedComputedConfiguration array{
45	* constructs_contain_a_single_space: list<'yield_from'>,
46	* constructs_followed_by_a_single_space: list<'abstract'\|'as'\|'attribute'\|'break'\|'case'\|'catch'\|'class'\|'clone'\|'comment'\|'const'\|'const_import'\|'continue'\|'do'\|'echo'\|'else'\|'elseif'\|'enum'\|'extends'\|'final'\|'finally'\|'for'\|'foreach'\|'function'\|'function_import'\|'global'\|'goto'\|'if'\|'implements'\|'include'\|'include_once'\|'instanceof'\|'insteadof'\|'interface'\|'match'\|'named_argument'\|'namespace'\|'new'\|'open_tag_with_echo'\|'php_doc'\|'php_open'\|'print'\|'private'\|'private_set'\|'protected'\|'protected_set'\|'public'\|'public_set'\|'readonly'\|'require'\|'require_once'\|'return'\|'static'\|'switch'\|'throw'\|'trait'\|'try'\|'type_colon'\|'use'\|'use_lambda'\|'use_trait'\|'var'\|'while'\|'yield'\|'yield_from'>,
47	* constructs_preceded_by_a_single_space: list<'as'\|'else'\|'elseif'\|'use_lambda'>,
48	* }
49	*/
50	final class SingleSpaceAroundConstructFixer extends AbstractFixer implements ConfigurableFixerInterface
51	{
52	/** @use ConfigurableFixerTrait<_AutogeneratedInputConfiguration, _AutogeneratedComputedConfiguration> */
53	use ConfigurableFixerTrait;
54
55	/**
56	* @var array<string, int>
57	*/
58	private const TOKEN_MAP_CONTAIN_A_SINGLE_SPACE = [
59	// for now, only one case - but we are ready to extend it, when we learn about new cases to cover
60	'yield_from' => T_YIELD_FROM,
61	];
62
63	/**
64	* @var array<string, int>
65	*/
66	private const TOKEN_MAP_PRECEDED_BY_A_SINGLE_SPACE = [
67	'as' => T_AS,
68	'else' => T_ELSE,
69	'elseif' => T_ELSEIF,
70	'use_lambda' => CT::T_USE_LAMBDA,
71	];
72
73	/**
74	* @var array<string, int>
75	*/
76	private const TOKEN_MAP_FOLLOWED_BY_A_SINGLE_SPACE = [
77	'abstract' => T_ABSTRACT,
78	'as' => T_AS,
79	'attribute' => CT::T_ATTRIBUTE_CLOSE,
80	'break' => T_BREAK,
81	'case' => T_CASE,
82	'catch' => T_CATCH,
83	'class' => T_CLASS,
84	'clone' => T_CLONE,
85	'comment' => T_COMMENT,
86	'const' => T_CONST,
87	'const_import' => CT::T_CONST_IMPORT,
88	'continue' => T_CONTINUE,
89	'do' => T_DO,
90	'echo' => T_ECHO,
91	'else' => T_ELSE,
92	'elseif' => T_ELSEIF,
93	'enum' => FCT::T_ENUM,
94	'extends' => T_EXTENDS,
95	'final' => T_FINAL,
96	'finally' => T_FINALLY,
97	'for' => T_FOR,
98	'foreach' => T_FOREACH,
99	'function' => T_FUNCTION,
100	'function_import' => CT::T_FUNCTION_IMPORT,
101	'global' => T_GLOBAL,
102	'goto' => T_GOTO,
103	'if' => T_IF,
104	'implements' => T_IMPLEMENTS,
105	'include' => T_INCLUDE,
106	'include_once' => T_INCLUDE_ONCE,
107	'instanceof' => T_INSTANCEOF,
108	'insteadof' => T_INSTEADOF,
109	'interface' => T_INTERFACE,
110	'match' => FCT::T_MATCH,
111	'named_argument' => CT::T_NAMED_ARGUMENT_COLON,
112	'namespace' => T_NAMESPACE,
113	'new' => T_NEW,
114	'open_tag_with_echo' => T_OPEN_TAG_WITH_ECHO,
115	'php_doc' => T_DOC_COMMENT,
116	'php_open' => T_OPEN_TAG,
117	'print' => T_PRINT,
118	'private' => T_PRIVATE,
119	'private_set' => FCT::T_PRIVATE_SET,
120	'protected' => T_PROTECTED,
121	'protected_set' => FCT::T_PROTECTED_SET,
122	'public' => T_PUBLIC,
123	'public_set' => FCT::T_PUBLIC_SET,
124	'readonly' => FCT::T_READONLY,
125	'require' => T_REQUIRE,
126	'require_once' => T_REQUIRE_ONCE,
127	'return' => T_RETURN,
128	'static' => T_STATIC,
129	'switch' => T_SWITCH,
130	'throw' => T_THROW,
131	'trait' => T_TRAIT,
132	'try' => T_TRY,
133	'type_colon' => CT::T_TYPE_COLON,
134	'use' => T_USE,
135	'use_lambda' => CT::T_USE_LAMBDA,
136	'use_trait' => CT::T_USE_TRAIT,
137	'var' => T_VAR,
138	'while' => T_WHILE,
139	'yield' => T_YIELD,
140	'yield_from' => T_YIELD_FROM,
141	];
142
143	/**
144	* @var array<string, int>
145	*/
146	private array $fixTokenMapFollowedByASingleSpace = [];
147
148	/**
149	* @var array<string, int>
150	*/
151	private array $fixTokenMapContainASingleSpace = [];
152
153	/**
154	* @var array<string, int>
155	*/
156	private array $fixTokenMapPrecededByASingleSpace = [];
157
158	public function getDefinition(): FixerDefinitionInterface
159	{
160	return new FixerDefinition(	3✔
161	'Ensures a single space after language constructs.',	3✔
162	[	3✔
163	new CodeSample(	3✔
164	'<?php	3✔
165
166	throw new \Exception();
167	'	3✔
168	),	3✔
169	new CodeSample(	3✔
170	'<?php	3✔
171
172	function foo() { yield from baz(); }
173	',	3✔
174	[	3✔
175	'constructs_contain_a_single_space' => [	3✔
176	'yield_from',	3✔
177	],	3✔
178	'constructs_followed_by_a_single_space' => [	3✔
179	'yield_from',	3✔
180	],	3✔
181	]	3✔
182	),	3✔
183	new CodeSample(	3✔
184	'<?php	3✔
185
186	$foo = function& ()use($bar) {
187	};
188	',	3✔
189	[	3✔
190	'constructs_preceded_by_a_single_space' => [	3✔
191	'use_lambda',	3✔
192	],	3✔
193	'constructs_followed_by_a_single_space' => [	3✔
194	'use_lambda',	3✔
195	],	3✔
196	]	3✔
197	),	3✔
198	new CodeSample(	3✔
199	'<?php	3✔
200
201	echo "Hello!";
202	',	3✔
203	[	3✔
204	'constructs_followed_by_a_single_space' => [	3✔
205	'echo',	3✔
206	],	3✔
207	]	3✔
208	),	3✔
209	new CodeSample(	3✔
210	'<?php	3✔
211
212	yield from baz();
213	',	3✔
214	[	3✔
215	'constructs_followed_by_a_single_space' => [	3✔
216	'yield_from',	3✔
217	],	3✔
218	]	3✔
219	),	3✔
220	]	3✔
221	);	3✔
222	}
223
224	/**
225	* {@inheritdoc}
226	*
227	* Must run before BracesFixer, FunctionDeclarationFixer.
228	* Must run after ArraySyntaxFixer, ModernizeStrposFixer.
229	*/
230	public function getPriority(): int
231	{
232	return 36;	1✔
233	}
234
235	public function isCandidate(Tokens $tokens): bool
236	{
237	$tokenKinds = [	401✔
238	...array_values($this->fixTokenMapContainASingleSpace),	401✔
239	...array_values($this->fixTokenMapPrecededByASingleSpace),	401✔
240	...array_values($this->fixTokenMapFollowedByASingleSpace),	401✔
241	];	401✔
242
243	return $tokens->isAnyTokenKindsFound($tokenKinds);	401✔
244	}
245
246	protected function configurePostNormalisation(): void
247	{
248	$this->fixTokenMapContainASingleSpace = [];	418✔
249
250	foreach ($this->configuration['constructs_contain_a_single_space'] as $key) {	418✔
251	$this->fixTokenMapContainASingleSpace[$key] = self::TOKEN_MAP_CONTAIN_A_SINGLE_SPACE[$key];	418✔
252	}
253
254	$this->fixTokenMapPrecededByASingleSpace = [];	418✔
255
256	foreach ($this->configuration['constructs_preceded_by_a_single_space'] as $key) {	418✔
257	$this->fixTokenMapPrecededByASingleSpace[$key] = self::TOKEN_MAP_PRECEDED_BY_A_SINGLE_SPACE[$key];	418✔
258	}
259
260	$this->fixTokenMapFollowedByASingleSpace = [];	418✔
261
262	foreach ($this->configuration['constructs_followed_by_a_single_space'] as $key) {	418✔
263	$this->fixTokenMapFollowedByASingleSpace[$key] = self::TOKEN_MAP_FOLLOWED_BY_A_SINGLE_SPACE[$key];	418✔
264	}
265
266	if (isset($this->fixTokenMapFollowedByASingleSpace['public'])) {	418✔
267	$this->fixTokenMapFollowedByASingleSpace['constructor_public'] = CT::T_CONSTRUCTOR_PROPERTY_PROMOTION_PUBLIC;	418✔
268	}
269
270	if (isset($this->fixTokenMapFollowedByASingleSpace['protected'])) {	418✔
271	$this->fixTokenMapFollowedByASingleSpace['constructor_protected'] = CT::T_CONSTRUCTOR_PROPERTY_PROMOTION_PROTECTED;	418✔
272	}
273
274	if (isset($this->fixTokenMapFollowedByASingleSpace['private'])) {	418✔
275	$this->fixTokenMapFollowedByASingleSpace['constructor_private'] = CT::T_CONSTRUCTOR_PROPERTY_PROMOTION_PRIVATE;	418✔
276	}
277	}
278
279	protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
280	{
281	$tokenKindsContainASingleSpace = array_values($this->fixTokenMapContainASingleSpace);	400✔
282
283	for ($index = $tokens->count() - 1; $index > 0; --$index) {	400✔
284	if ($tokens[$index]->isGivenKind($tokenKindsContainASingleSpace)) {	398✔
285	$token = $tokens[$index];	6✔
286
287	if (
288	$token->isGivenKind(T_YIELD_FROM)	6✔
289	&& 'yield from' !== strtolower($token->getContent())	6✔
290	) {
291	$tokens[$index] = new Token([T_YIELD_FROM, Preg::replace(	6✔
292	'/\s+/',	6✔
293	' ',	6✔
294	$token->getContent()	6✔
295	)]);	6✔
296	}
297	}
298	}
299
300	$tokenKindsPrecededByASingleSpace = array_values($this->fixTokenMapPrecededByASingleSpace);	400✔
301
302	for ($index = $tokens->count() - 1; $index > 0; --$index) {	400✔
303	if ($tokens[$index]->isGivenKind($tokenKindsPrecededByASingleSpace)) {	398✔
304	if (!$this->isFullLineCommentBefore($tokens, $index)) {	29✔
305	$tokens->ensureWhitespaceAtIndex($index - 1, 1, ' ');	27✔
306	}
307	}
308	}
309
310	$tokenKindsFollowedByASingleSpace = array_values($this->fixTokenMapFollowedByASingleSpace);	400✔
311
312	for ($index = $tokens->count() - 2; $index >= 0; --$index) {	400✔
313	$token = $tokens[$index];	398✔
314
315	if (!$token->isGivenKind($tokenKindsFollowedByASingleSpace)) {	398✔
316	continue;	398✔
317	}
318
319	$whitespaceTokenIndex = $index + 1;	381✔
320
321	if ($tokens[$whitespaceTokenIndex]->equalsAny([',', ':', ';', ')', [CT::T_ARRAY_SQUARE_BRACE_CLOSE], [CT::T_DESTRUCTURING_SQUARE_BRACE_CLOSE]])) {	381✔
322	continue;	5✔
323	}
324
325	if (
326	$token->isGivenKind(T_STATIC)	376✔
327	&& !$tokens[$tokens->getNextMeaningfulToken($index)]->isGivenKind([T_FN, T_FUNCTION, T_NS_SEPARATOR, T_STRING, T_VARIABLE, CT::T_ARRAY_TYPEHINT, CT::T_NULLABLE_TYPE])	376✔
328	) {
329	continue;	2✔
330	}
331
332	if ($token->isGivenKind(T_OPEN_TAG)) {	374✔
333	if ($tokens[$whitespaceTokenIndex]->equals([T_WHITESPACE]) && !str_contains($tokens[$whitespaceTokenIndex]->getContent(), "\n") && !str_contains($token->getContent(), "\n")) {	22✔
334	$tokens->clearAt($whitespaceTokenIndex);	2✔
335	}
336
337	continue;	22✔
338	}
339
340	if ($token->isGivenKind(T_CLASS) && $tokens[$tokens->getNextMeaningfulToken($index)]->equals('(')) {	369✔
341	continue;	1✔
342	}
343
344	if ($token->isGivenKind([T_EXTENDS, T_IMPLEMENTS]) && $this->isMultilineExtendsOrImplementsWithMoreThanOneAncestor($tokens, $index)) {	368✔
345	continue;	2✔
346	}
347
348	if ($token->isGivenKind(T_RETURN) && $this->isMultiLineReturn($tokens, $index)) {	366✔
349	continue;	10✔
350	}
351
352	if ($token->isGivenKind(T_CONST) && $this->isMultilineCommaSeparatedConstant($tokens, $index)) {	356✔
353	continue;	2✔
354	}
355
356	if ($token->isComment() \|\| $token->isGivenKind(CT::T_ATTRIBUTE_CLOSE)) {	354✔
357	if ($tokens[$whitespaceTokenIndex]->equals([T_WHITESPACE]) && str_contains($tokens[$whitespaceTokenIndex]->getContent(), "\n")) {	4✔
358	continue;	4✔
359	}
360	}
361
362	if ($tokens[$whitespaceTokenIndex]->isWhitespace() && str_contains($tokens[$whitespaceTokenIndex]->getContent(), "\n")) {	354✔
363	$nextNextToken = $tokens[$whitespaceTokenIndex + 1];	82✔
364	if (
365	$nextNextToken->isGivenKind(FCT::T_ATTRIBUTE)	82✔
366	\|\| $nextNextToken->isComment() && str_starts_with($nextNextToken->getContent(), '#[')	82✔
367	) {
368	continue;	1✔
369	}
370
371	if ($nextNextToken->isGivenKind(T_DOC_COMMENT)) {	81✔
372	continue;	1✔
373	}
374	}
375
376	$tokens->ensureWhitespaceAtIndex($whitespaceTokenIndex, 0, ' ');	352✔
377	}
378	}
379
380	protected function createConfigurationDefinition(): FixerConfigurationResolverInterface
381	{
382	$tokenMapContainASingleSpaceKeys = array_keys(self::TOKEN_MAP_CONTAIN_A_SINGLE_SPACE);	418✔
383	$tokenMapPrecededByASingleSpaceKeys = array_keys(self::TOKEN_MAP_PRECEDED_BY_A_SINGLE_SPACE);	418✔
384	$tokenMapFollowedByASingleSpaceKeys = array_keys(self::TOKEN_MAP_FOLLOWED_BY_A_SINGLE_SPACE);	418✔
385
386	return new FixerConfigurationResolver([	418✔
387	(new FixerOptionBuilder('constructs_contain_a_single_space', 'List of constructs which must contain a single space.'))	418✔
388	->setAllowedTypes(['string[]'])	418✔
389	->setAllowedValues([new AllowedValueSubset($tokenMapContainASingleSpaceKeys)])	418✔
390	->setDefault($tokenMapContainASingleSpaceKeys)	418✔
391	->getOption(),	418✔
392	(new FixerOptionBuilder('constructs_preceded_by_a_single_space', 'List of constructs which must be preceded by a single space.'))	418✔
393	->setAllowedTypes(['string[]'])	418✔
394	->setAllowedValues([new AllowedValueSubset($tokenMapPrecededByASingleSpaceKeys)])	418✔
395	->setDefault(['as', 'use_lambda'])	418✔
396	->getOption(),	418✔
397	(new FixerOptionBuilder('constructs_followed_by_a_single_space', 'List of constructs which must be followed by a single space.'))	418✔
398	->setAllowedTypes(['string[]'])	418✔
399	->setAllowedValues([new AllowedValueSubset($tokenMapFollowedByASingleSpaceKeys)])	418✔
400	->setDefault($tokenMapFollowedByASingleSpaceKeys)	418✔
401	->getOption(),	418✔
402	]);	418✔
403	}
404
405	private function isMultiLineReturn(Tokens $tokens, int $index): bool
406	{
407	++$index;	18✔
408	$tokenFollowingReturn = $tokens[$index];	18✔
409
410	if (
411	!$tokenFollowingReturn->isGivenKind(T_WHITESPACE)	18✔
412	\|\| !str_contains($tokenFollowingReturn->getContent(), "\n")	18✔
413	) {
414	return false;	8✔
415	}
416
417	$nestedCount = 0;	13✔
418
419	for ($indexEnd = \count($tokens) - 1, ++$index; $index < $indexEnd; ++$index) {	13✔
420	if (str_contains($tokens[$index]->getContent(), "\n")) {	13✔
421	return true;	10✔
422	}
423
424	if ($tokens[$index]->equals('{')) {	13✔
425	++$nestedCount;	1✔
426	} elseif ($tokens[$index]->equals('}')) {	13✔
427	--$nestedCount;	1✔
428	} elseif (0 === $nestedCount && $tokens[$index]->equalsAny([';', [T_CLOSE_TAG]])) {	13✔
429	break;	×
430	}
431	}
432
433	return false;	3✔
434	}
435
436	private function isMultilineExtendsOrImplementsWithMoreThanOneAncestor(Tokens $tokens, int $index): bool
437	{
438	$hasMoreThanOneAncestor = false;	26✔
439
440	while (true) {	26✔
441	++$index;	26✔
442	$token = $tokens[$index];	26✔
443
444	if ($token->equals(',')) {	26✔
445	$hasMoreThanOneAncestor = true;	6✔
446
447	continue;	6✔
448	}
449
450	if ($token->equals('{')) {	26✔
451	return false;	24✔
452	}
453
454	if ($hasMoreThanOneAncestor && str_contains($token->getContent(), "\n")) {	26✔
455	return true;	2✔
456	}
457	}
458
459	return LogicException('Not reachable code was reached.'); // @phpstan-ignore deadCode.unreachable	×
460	}
461
462	private function isMultilineCommaSeparatedConstant(Tokens $tokens, int $constantIndex): bool
463	{
464	$isMultilineConstant = false;	10✔
465	$hasMoreThanOneConstant = false;	10✔
466	$index = $constantIndex;	10✔
467	while (!$tokens[$index]->equalsAny([';', [T_CLOSE_TAG]])) {	10✔
468	++$index;	10✔
469
470	$isMultilineConstant = $isMultilineConstant \|\| str_contains($tokens[$index]->getContent(), "\n");	10✔
471
472	if ($tokens[$index]->equals(',')) {	10✔
473	$hasMoreThanOneConstant = true;	2✔
474	}
475
476	$blockType = Tokens::detectBlockType($tokens[$index]);	10✔
477
478	if (null !== $blockType && true === $blockType['isStart']) {	10✔
479	$index = $tokens->findBlockEnd($blockType['type'], $index);	1✔
480	}
481	}
482
483	return $hasMoreThanOneConstant && $isMultilineConstant;	10✔
484	}
485
486	private function isFullLineCommentBefore(Tokens $tokens, int $index): bool
487	{
488	$beforeIndex = $tokens->getPrevNonWhitespace($index);	29✔
489
490	if (!$tokens[$beforeIndex]->isGivenKind([T_COMMENT])) {	29✔
491	return false;	25✔
492	}
493
494	$content = $tokens[$beforeIndex]->getContent();	4✔
495
496	return str_starts_with($content, '#') \|\| str_starts_with($content, '//');	4✔
497	}
498	}

keradus / PHP-CS-Fixer / 16018263876

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