543 lines
17 KiB
PHP
543 lines
17 KiB
PHP
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<?php
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/**
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* WordPress Coding Standard.
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*
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* @package WPCS\WordPressCodingStandards
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* @link https://github.com/WordPress/WordPress-Coding-Standards
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* @license https://opensource.org/licenses/MIT MIT
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*/
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namespace WordPressCS\WordPress\Sniffs\Arrays;
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use WordPressCS\WordPress\Sniff;
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use WordPressCS\WordPress\PHPCSHelper;
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use PHP_CodeSniffer\Util\Tokens;
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/**
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* Enforces WordPress array indentation for multi-line arrays.
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*
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* @link https://make.wordpress.org/core/handbook/best-practices/coding-standards/php/#indentation
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*
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* @package WPCS\WordPressCodingStandards
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*
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* @since 0.12.0
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* @since 0.13.0 Class name changed: this class is now namespaced.
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*
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* {@internal This sniff should eventually be pulled upstream as part of a solution
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* for https://github.com/squizlabs/PHP_CodeSniffer/issues/582 }}
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*/
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class ArrayIndentationSniff extends Sniff {
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/**
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* Should tabs be used for indenting?
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*
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* If TRUE, fixes will be made using tabs instead of spaces.
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* The size of each tab is important, so it should be specified
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* using the --tab-width CLI argument.
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*
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* {@internal While for WPCS this should always be `true`, this property
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* was added in anticipation of upstreaming the sniff.
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* This property is the same as used in `Generic.WhiteSpace.ScopeIndent`.}}
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*
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* @var bool
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*/
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public $tabIndent = true;
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/**
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* The --tab-width CLI value that is being used.
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*
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* @var int
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*/
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private $tab_width;
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/**
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* Tokens to ignore for subsequent lines in a multi-line array item.
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*
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* Property is set in the register() method.
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*
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* @var array
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*/
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private $ignore_tokens = array();
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/**
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* Returns an array of tokens this test wants to listen for.
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*
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* @return array
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*/
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public function register() {
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/*
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* Set the $ignore_tokens property.
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*
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* Existing heredoc, nowdoc and inline HTML indentation should be respected at all times.
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*/
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$this->ignore_tokens = Tokens::$heredocTokens;
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unset( $this->ignore_tokens[ \T_START_HEREDOC ], $this->ignore_tokens[ \T_START_NOWDOC ] );
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$this->ignore_tokens[ \T_INLINE_HTML ] = \T_INLINE_HTML;
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return array(
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\T_ARRAY,
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\T_OPEN_SHORT_ARRAY,
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);
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}
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/**
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* Processes this test, when one of its tokens is encountered.
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*
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* @param int $stackPtr The position of the current token in the stack.
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*
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* @return int|void Integer stack pointer to skip forward or void to continue
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* normal file processing.
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*/
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public function process_token( $stackPtr ) {
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if ( ! isset( $this->tab_width ) ) {
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$this->tab_width = PHPCSHelper::get_tab_width( $this->phpcsFile );
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}
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if ( \T_OPEN_SHORT_ARRAY === $this->tokens[ $stackPtr ]['code']
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&& $this->is_short_list( $stackPtr )
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) {
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// Short list, not short array.
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return;
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}
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/*
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* Determine the array opener & closer.
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*/
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$array_open_close = $this->find_array_open_close( $stackPtr );
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if ( false === $array_open_close ) {
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// Array open/close could not be determined.
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return;
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}
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$opener = $array_open_close['opener'];
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$closer = $array_open_close['closer'];
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if ( $this->tokens[ $opener ]['line'] === $this->tokens[ $closer ]['line'] ) {
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// Not interested in single line arrays.
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return;
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}
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/*
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* Check the closing bracket is lined up with the start of the content on the line
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* containing the array opener.
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*/
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$opener_line_spaces = $this->get_indentation_size( $opener );
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$closer_line_spaces = ( $this->tokens[ $closer ]['column'] - 1 );
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if ( $closer_line_spaces !== $opener_line_spaces ) {
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$error = 'Array closer not aligned correctly; expected %s space(s) but found %s';
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$error_code = 'CloseBraceNotAligned';
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/*
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* Report & fix the issue if the close brace is on its own line with
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* nothing or only indentation whitespace before it.
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*/
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if ( 0 === $closer_line_spaces
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|| ( \T_WHITESPACE === $this->tokens[ ( $closer - 1 ) ]['code']
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&& 1 === $this->tokens[ ( $closer - 1 ) ]['column'] )
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) {
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$this->add_array_alignment_error(
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$closer,
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$error,
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$error_code,
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$opener_line_spaces,
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$closer_line_spaces,
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$this->get_indentation_string( $opener_line_spaces )
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);
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} else {
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/*
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* Otherwise, only report the error, don't try and fix it (yet).
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*
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* It will get corrected in a future loop of the fixer once the closer
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* has been moved to its own line by the `ArrayDeclarationSpacing` sniff.
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*/
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$this->phpcsFile->addError(
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$error,
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$closer,
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$error_code,
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array( $opener_line_spaces, $closer_line_spaces )
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);
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}
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unset( $error, $error_code );
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}
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/*
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* Verify & correct the array item indentation.
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*/
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$array_items = $this->get_function_call_parameters( $stackPtr );
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if ( empty( $array_items ) ) {
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// Strange, no array items found.
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return;
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}
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$expected_spaces = ( $opener_line_spaces + $this->tab_width );
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$expected_indent = $this->get_indentation_string( $expected_spaces );
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$end_of_previous_item = $opener;
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foreach ( $array_items as $item ) {
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$end_of_this_item = ( $item['end'] + 1 );
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// Find the line on which the item starts.
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$first_content = $this->phpcsFile->findNext(
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array( \T_WHITESPACE, \T_DOC_COMMENT_WHITESPACE ),
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$item['start'],
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$end_of_this_item,
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true
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);
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// Deal with trailing comments.
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if ( false !== $first_content
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&& \T_COMMENT === $this->tokens[ $first_content ]['code']
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&& $this->tokens[ $first_content ]['line'] === $this->tokens[ $end_of_previous_item ]['line']
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) {
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$first_content = $this->phpcsFile->findNext(
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array( \T_WHITESPACE, \T_DOC_COMMENT_WHITESPACE, \T_COMMENT ),
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( $first_content + 1 ),
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$end_of_this_item,
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true
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);
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}
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if ( false === $first_content ) {
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$end_of_previous_item = $end_of_this_item;
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continue;
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}
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// Bow out from reporting and fixing mixed multi-line/single-line arrays.
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// That is handled by the ArrayDeclarationSpacingSniff.
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if ( $this->tokens[ $first_content ]['line'] === $this->tokens[ $end_of_previous_item ]['line']
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|| ( 1 !== $this->tokens[ $first_content ]['column']
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&& \T_WHITESPACE !== $this->tokens[ ( $first_content - 1 ) ]['code'] )
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) {
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return $closer;
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}
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$found_spaces = ( $this->tokens[ $first_content ]['column'] - 1 );
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if ( $found_spaces !== $expected_spaces ) {
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$this->add_array_alignment_error(
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$first_content,
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'Array item not aligned correctly; expected %s spaces but found %s',
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'ItemNotAligned',
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$expected_spaces,
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$found_spaces,
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$expected_indent
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);
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}
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// No need for further checking if this is a one-line array item.
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if ( $this->tokens[ $first_content ]['line'] === $this->tokens[ $item['end'] ]['line'] ) {
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$end_of_previous_item = $end_of_this_item;
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continue;
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}
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/*
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* Multi-line array items.
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*
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* Verify & if needed, correct the indentation of subsequent lines.
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* Subsequent lines may be indented more or less than the mimimum expected indent,
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* but the "first line after" should be indented - at least - as much as the very first line
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* of the array item.
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* Indentation correction for subsequent lines will be based on that diff.
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*/
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// Find first token on second line of the array item.
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// If the second line is a heredoc/nowdoc, continue on until we find a line with a different token.
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// Same for the second line of a multi-line text string.
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for ( $ptr = ( $first_content + 1 ); $ptr <= $item['end']; $ptr++ ) {
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if ( $this->tokens[ $first_content ]['line'] !== $this->tokens[ $ptr ]['line']
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&& 1 === $this->tokens[ $ptr ]['column']
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&& false === $this->ignore_token( $ptr )
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) {
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break;
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}
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}
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$first_content_on_line2 = $this->phpcsFile->findNext(
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array( \T_WHITESPACE, \T_DOC_COMMENT_WHITESPACE ),
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$ptr,
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$end_of_this_item,
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true
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);
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if ( false === $first_content_on_line2 ) {
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/*
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* Apparently there were only tokens in the ignore list on subsequent lines.
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*
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* In that case, the comma after the array item might be on a line by itself,
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* so check its placement.
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*/
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if ( $this->tokens[ $item['end'] ]['line'] !== $this->tokens[ $end_of_this_item ]['line']
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&& \T_COMMA === $this->tokens[ $end_of_this_item ]['code']
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&& ( $this->tokens[ $end_of_this_item ]['column'] - 1 ) !== $expected_spaces
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) {
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$this->add_array_alignment_error(
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$end_of_this_item,
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'Comma after multi-line array item not aligned correctly; expected %s spaces, but found %s',
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'MultiLineArrayItemCommaNotAligned',
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$expected_spaces,
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( $this->tokens[ $end_of_this_item ]['column'] - 1 ),
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$expected_indent
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);
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}
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$end_of_previous_item = $end_of_this_item;
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continue;
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}
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$found_spaces_on_line2 = $this->get_indentation_size( $first_content_on_line2 );
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$expected_spaces_on_line2 = $expected_spaces;
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if ( $found_spaces < $found_spaces_on_line2 ) {
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$expected_spaces_on_line2 += ( $found_spaces_on_line2 - $found_spaces );
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}
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if ( $found_spaces_on_line2 !== $expected_spaces_on_line2 ) {
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$fix = $this->phpcsFile->addFixableError(
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'Multi-line array item not aligned correctly; expected %s spaces, but found %s',
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$first_content_on_line2,
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'MultiLineArrayItemNotAligned',
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array(
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$expected_spaces_on_line2,
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$found_spaces_on_line2,
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)
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);
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if ( true === $fix ) {
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$expected_indent_on_line2 = $this->get_indentation_string( $expected_spaces_on_line2 );
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$this->phpcsFile->fixer->beginChangeset();
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// Fix second line for the array item.
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if ( 1 === $this->tokens[ $first_content_on_line2 ]['column']
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&& \T_COMMENT === $this->tokens[ $first_content_on_line2 ]['code']
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) {
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$actual_comment = ltrim( $this->tokens[ $first_content_on_line2 ]['content'] );
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$replacement = $expected_indent_on_line2 . $actual_comment;
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$this->phpcsFile->fixer->replaceToken( $first_content_on_line2, $replacement );
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} else {
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$this->fix_alignment_error( $first_content_on_line2, $expected_indent_on_line2 );
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}
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// Fix subsequent lines.
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for ( $i = ( $first_content_on_line2 + 1 ); $i <= $item['end']; $i++ ) {
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// We're only interested in the first token on each line.
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if ( 1 !== $this->tokens[ $i ]['column'] ) {
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if ( $this->tokens[ $i ]['line'] === $this->tokens[ $item['end'] ]['line'] ) {
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// We might as well quit if we're past the first token on the last line.
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break;
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}
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continue;
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}
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$first_content_on_line = $this->phpcsFile->findNext(
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array( \T_WHITESPACE, \T_DOC_COMMENT_WHITESPACE ),
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$i,
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$end_of_this_item,
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true
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);
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if ( false === $first_content_on_line ) {
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break;
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}
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// Ignore lines with heredoc and nowdoc tokens and subsequent lines in multi-line strings.
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if ( true === $this->ignore_token( $first_content_on_line ) ) {
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$i = $first_content_on_line;
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continue;
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}
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$found_spaces_on_line = $this->get_indentation_size( $first_content_on_line );
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$expected_spaces_on_line = ( $expected_spaces_on_line2 + ( $found_spaces_on_line - $found_spaces_on_line2 ) );
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$expected_spaces_on_line = max( $expected_spaces_on_line, 0 ); // Can't be below 0.
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$expected_indent_on_line = $this->get_indentation_string( $expected_spaces_on_line );
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if ( $found_spaces_on_line !== $expected_spaces_on_line ) {
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|
|
if ( 1 === $this->tokens[ $first_content_on_line ]['column']
|
||
|
|
&& \T_COMMENT === $this->tokens[ $first_content_on_line ]['code']
|
||
|
|
) {
|
||
|
|
$actual_comment = ltrim( $this->tokens[ $first_content_on_line ]['content'] );
|
||
|
|
$replacement = $expected_indent_on_line . $actual_comment;
|
||
|
|
|
||
|
|
$this->phpcsFile->fixer->replaceToken( $first_content_on_line, $replacement );
|
||
|
|
} else {
|
||
|
|
$this->fix_alignment_error( $first_content_on_line, $expected_indent_on_line );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Move past any potential empty lines between the previous non-empty line and this one.
|
||
|
|
// No need to do the fixes twice.
|
||
|
|
$i = $first_content_on_line;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Check the placement of the comma after the array item as it might be on a line by itself.
|
||
|
|
*/
|
||
|
|
if ( $this->tokens[ $item['end'] ]['line'] !== $this->tokens[ $end_of_this_item ]['line']
|
||
|
|
&& \T_COMMA === $this->tokens[ $end_of_this_item ]['code']
|
||
|
|
&& ( $this->tokens[ $end_of_this_item ]['column'] - 1 ) !== $expected_spaces
|
||
|
|
) {
|
||
|
|
$this->add_array_alignment_error(
|
||
|
|
$end_of_this_item,
|
||
|
|
'Comma after array item not aligned correctly; expected %s spaces, but found %s',
|
||
|
|
'MultiLineArrayItemCommaNotAligned',
|
||
|
|
$expected_spaces,
|
||
|
|
( $this->tokens[ $end_of_this_item ]['column'] - 1 ),
|
||
|
|
$expected_indent
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->phpcsFile->fixer->endChangeset();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$end_of_previous_item = $end_of_this_item;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Should the token be ignored ?
|
||
|
|
*
|
||
|
|
* This method is only intended to be used with the first token on a line
|
||
|
|
* for subsequent lines in an multi-line array item.
|
||
|
|
*
|
||
|
|
* @param int $ptr Stack pointer to the first token on a line.
|
||
|
|
*
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
protected function ignore_token( $ptr ) {
|
||
|
|
$token_code = $this->tokens[ $ptr ]['code'];
|
||
|
|
|
||
|
|
if ( isset( $this->ignore_tokens[ $token_code ] ) ) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* If it's a subsequent line of a multi-line sting, it will not start with a quote
|
||
|
|
* character, nor just *be* a quote character.
|
||
|
|
*/
|
||
|
|
if ( \T_CONSTANT_ENCAPSED_STRING === $token_code
|
||
|
|
|| \T_DOUBLE_QUOTED_STRING === $token_code
|
||
|
|
) {
|
||
|
|
// Deal with closing quote of a multi-line string being on its own line.
|
||
|
|
if ( "'" === $this->tokens[ $ptr ]['content']
|
||
|
|
|| '"' === $this->tokens[ $ptr ]['content']
|
||
|
|
) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Deal with subsequent lines of a multi-line string where the token is broken up per line.
|
||
|
|
if ( "'" !== $this->tokens[ $ptr ]['content'][0]
|
||
|
|
&& '"' !== $this->tokens[ $ptr ]['content'][0]
|
||
|
|
) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine the line indentation whitespace.
|
||
|
|
*
|
||
|
|
* @param int $ptr Stack pointer to an arbitrary token on a line.
|
||
|
|
*
|
||
|
|
* @return int Nr of spaces found. Where necessary, tabs are translated to spaces.
|
||
|
|
*/
|
||
|
|
protected function get_indentation_size( $ptr ) {
|
||
|
|
|
||
|
|
// Find the first token on the line.
|
||
|
|
for ( ; $ptr >= 0; $ptr-- ) {
|
||
|
|
if ( 1 === $this->tokens[ $ptr ]['column'] ) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$whitespace = '';
|
||
|
|
|
||
|
|
if ( \T_WHITESPACE === $this->tokens[ $ptr ]['code']
|
||
|
|
|| \T_DOC_COMMENT_WHITESPACE === $this->tokens[ $ptr ]['code']
|
||
|
|
) {
|
||
|
|
return $this->tokens[ $ptr ]['length'];
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Special case for multi-line, non-docblock comments.
|
||
|
|
* Only applicable for subsequent lines in an array item.
|
||
|
|
*
|
||
|
|
* First/Single line is tokenized as T_WHITESPACE + T_COMMENT
|
||
|
|
* Subsequent lines are tokenized as T_COMMENT including the indentation whitespace.
|
||
|
|
*/
|
||
|
|
if ( \T_COMMENT === $this->tokens[ $ptr ]['code'] ) {
|
||
|
|
$content = $this->tokens[ $ptr ]['content'];
|
||
|
|
$actual_comment = ltrim( $content );
|
||
|
|
$whitespace = str_replace( $actual_comment, '', $content );
|
||
|
|
}
|
||
|
|
|
||
|
|
return \strlen( $whitespace );
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create an indentation string.
|
||
|
|
*
|
||
|
|
* @param int $nr Number of spaces the indentation should be.
|
||
|
|
*
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected function get_indentation_string( $nr ) {
|
||
|
|
if ( 0 >= $nr ) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
|
||
|
|
// Space-based indentation.
|
||
|
|
if ( false === $this->tabIndent ) {
|
||
|
|
return str_repeat( ' ', $nr );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Tab-based indentation.
|
||
|
|
$num_tabs = (int) floor( $nr / $this->tab_width );
|
||
|
|
$remaining = ( $nr % $this->tab_width );
|
||
|
|
$tab_indent = str_repeat( "\t", $num_tabs );
|
||
|
|
$tab_indent .= str_repeat( ' ', $remaining );
|
||
|
|
|
||
|
|
return $tab_indent;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Throw an error and fix incorrect array alignment.
|
||
|
|
*
|
||
|
|
* @param int $ptr Stack pointer to the first content on the line.
|
||
|
|
* @param string $error Error message.
|
||
|
|
* @param string $error_code Error code.
|
||
|
|
* @param int $expected Expected nr of spaces (tabs translated to space value).
|
||
|
|
* @param int $found Found nr of spaces (tabs translated to space value).
|
||
|
|
* @param string $new_indent Whitespace indent replacement content.
|
||
|
|
*/
|
||
|
|
protected function add_array_alignment_error( $ptr, $error, $error_code, $expected, $found, $new_indent ) {
|
||
|
|
|
||
|
|
$fix = $this->phpcsFile->addFixableError( $error, $ptr, $error_code, array( $expected, $found ) );
|
||
|
|
if ( true === $fix ) {
|
||
|
|
$this->fix_alignment_error( $ptr, $new_indent );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fix incorrect array alignment.
|
||
|
|
*
|
||
|
|
* @param int $ptr Stack pointer to the first content on the line.
|
||
|
|
* @param string $new_indent Whitespace indent replacement content.
|
||
|
|
*/
|
||
|
|
protected function fix_alignment_error( $ptr, $new_indent ) {
|
||
|
|
if ( 1 === $this->tokens[ $ptr ]['column'] ) {
|
||
|
|
$this->phpcsFile->fixer->addContentBefore( $ptr, $new_indent );
|
||
|
|
} else {
|
||
|
|
$this->phpcsFile->fixer->replaceToken( ( $ptr - 1 ), $new_indent );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|