469 lines
15 KiB
PHP
469 lines
15 KiB
PHP
<?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 PHP_CodeSniffer\Util\Tokens;
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/**
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* Enforces WordPress array spacing format.
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*
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* - Check for no space between array keyword and array opener.
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* - Check for no space between the parentheses of an empty array.
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* - Checks for one space after the array opener / before the array closer in single-line arrays.
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* - Checks that associative arrays are multi-line.
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* - Checks that each array item in a multi-line array starts on a new line.
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* - Checks that the array closer in a multi-line array is on a new line.
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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 0.11.0 - The WordPress specific additional checks have now been split off
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* from the `WordPress.Arrays.ArrayDeclaration` sniff into this sniff.
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* - Added sniffing & fixing for associative arrays.
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* @since 0.12.0 Decoupled this sniff from the upstream sniff completely.
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* This sniff now extends the WordPressCS native `Sniff` class instead.
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* @since 0.13.0 Added the last remaining checks from the `WordPress.Arrays.ArrayDeclaration`
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* sniff which were not covered elsewhere.
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* The `WordPress.Arrays.ArrayDeclaration` sniff has now been deprecated.
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* @since 0.13.0 Class name changed: this class is now namespaced.
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* @since 0.14.0 Single item associative arrays are now by default exempt from the
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* "must be multi-line" rule. This behaviour can be changed using the
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* `allow_single_item_single_line_associative_arrays` property.
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*/
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class ArrayDeclarationSpacingSniff extends Sniff {
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/**
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* Whether or not to allow single item associative arrays to be single line.
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*
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* @since 0.14.0
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*
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* @var bool Defaults to true.
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*/
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public $allow_single_item_single_line_associative_arrays = true;
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/**
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* Token this sniff targets.
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*
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* Also used for distinguishing between the array and an array value
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* which is also an array.
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*
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* @since 0.12.0
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*
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* @var array
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*/
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private $targets = array(
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\T_ARRAY => \T_ARRAY,
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\T_OPEN_SHORT_ARRAY => \T_OPEN_SHORT_ARRAY,
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);
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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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* @since 0.12.0
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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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return $this->targets;
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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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* @since 0.12.0 The actual checks contained in this method used to
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* be in the `processSingleLineArray()` method.
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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 void
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*/
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public function process_token( $stackPtr ) {
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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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unset( $array_open_close );
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/*
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* Long arrays only: Check for space between the array keyword and the open parenthesis.
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*/
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if ( \T_ARRAY === $this->tokens[ $stackPtr ]['code'] ) {
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if ( ( $stackPtr + 1 ) !== $opener ) {
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$error = 'There must be no space between the "array" keyword and the opening parenthesis';
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$error_code = 'SpaceAfterKeyword';
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$nextNonWhitespace = $this->phpcsFile->findNext( \T_WHITESPACE, ( $stackPtr + 1 ), ( $opener + 1 ), true );
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if ( $nextNonWhitespace !== $opener ) {
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// Don't auto-fix: Something other than whitespace found between keyword and open parenthesis.
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$this->phpcsFile->addError( $error, $stackPtr, $error_code );
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} else {
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$fix = $this->phpcsFile->addFixableError( $error, $stackPtr, $error_code );
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if ( true === $fix ) {
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$this->phpcsFile->fixer->beginChangeset();
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for ( $i = ( $stackPtr + 1 ); $i < $opener; $i++ ) {
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$this->phpcsFile->fixer->replaceToken( $i, '' );
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}
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$this->phpcsFile->fixer->endChangeset();
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unset( $i );
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}
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}
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unset( $error, $error_code, $nextNonWhitespace, $fix );
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}
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}
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/*
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* Check for empty arrays.
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*/
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$nextNonWhitespace = $this->phpcsFile->findNext( \T_WHITESPACE, ( $opener + 1 ), ( $closer + 1 ), true );
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if ( $nextNonWhitespace === $closer ) {
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if ( ( $opener + 1 ) !== $closer ) {
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$fix = $this->phpcsFile->addFixableError(
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'Empty array declaration must have no space between the parentheses',
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$stackPtr,
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'SpaceInEmptyArray'
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);
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if ( true === $fix ) {
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$this->phpcsFile->fixer->beginChangeset();
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for ( $i = ( $opener + 1 ); $i < $closer; $i++ ) {
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$this->phpcsFile->fixer->replaceToken( $i, '' );
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}
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$this->phpcsFile->fixer->endChangeset();
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unset( $i );
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}
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}
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// This array is empty, so the below checks aren't necessary.
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return;
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}
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unset( $nextNonWhitespace );
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// Pass off to either the single line or multi-line array analysis.
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if ( $this->tokens[ $opener ]['line'] === $this->tokens[ $closer ]['line'] ) {
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$this->process_single_line_array( $stackPtr, $opener, $closer );
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} else {
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$this->process_multi_line_array( $stackPtr, $opener, $closer );
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}
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}
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/**
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* Process a single-line array.
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*
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* @since 0.13.0 The actual checks contained in this method used to
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* be in the `process()` method.
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*
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* @param int $stackPtr The position of the current token in the stack.
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* @param int $opener The position of the array opener.
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* @param int $closer The position of the array closer.
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*
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* @return void
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*/
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protected function process_single_line_array( $stackPtr, $opener, $closer ) {
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/*
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* Check that associative arrays are always multi-line.
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*/
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$array_has_keys = $this->phpcsFile->findNext( \T_DOUBLE_ARROW, $opener, $closer );
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if ( false !== $array_has_keys ) {
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$array_items = $this->get_function_call_parameters( $stackPtr );
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if ( ( false === $this->allow_single_item_single_line_associative_arrays
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&& ! empty( $array_items ) )
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|| ( true === $this->allow_single_item_single_line_associative_arrays
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&& \count( $array_items ) > 1 )
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) {
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/*
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* Make sure the double arrow is for *this* array, not for a nested one.
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*/
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$array_has_keys = false; // Reset before doing more detailed check.
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foreach ( $array_items as $item ) {
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for ( $ptr = $item['start']; $ptr <= $item['end']; $ptr++ ) {
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if ( \T_DOUBLE_ARROW === $this->tokens[ $ptr ]['code'] ) {
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$array_has_keys = true;
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break 2;
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}
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// Skip passed any nested arrays.
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if ( isset( $this->targets[ $this->tokens[ $ptr ]['code'] ] ) ) {
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$nested_array_open_close = $this->find_array_open_close( $ptr );
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if ( false === $nested_array_open_close ) {
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// Nested array open/close could not be determined.
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continue;
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}
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$ptr = $nested_array_open_close['closer'];
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}
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}
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}
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if ( true === $array_has_keys ) {
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$phrase = 'an';
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if ( true === $this->allow_single_item_single_line_associative_arrays ) {
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$phrase = 'a multi-item';
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}
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$fix = $this->phpcsFile->addFixableError(
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'When %s array uses associative keys, each value should start on a new line.',
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$closer,
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'AssociativeArrayFound',
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array( $phrase )
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);
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if ( true === $fix ) {
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$this->phpcsFile->fixer->beginChangeset();
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foreach ( $array_items as $item ) {
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/*
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* Add a line break before the first non-empty token in the array item.
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* Prevents extraneous whitespace at the start of the line which could be
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* interpreted as alignment whitespace.
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*/
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$first_non_empty = $this->phpcsFile->findNext(
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Tokens::$emptyTokens,
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$item['start'],
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( $item['end'] + 1 ),
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true
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);
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if ( false === $first_non_empty ) {
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continue;
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}
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if ( $item['start'] <= ( $first_non_empty - 1 )
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&& \T_WHITESPACE === $this->tokens[ ( $first_non_empty - 1 ) ]['code']
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) {
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// Remove whitespace which would otherwise becoming trailing
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// (as it gives problems with the fixed file).
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$this->phpcsFile->fixer->replaceToken( ( $first_non_empty - 1 ), '' );
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}
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$this->phpcsFile->fixer->addNewlineBefore( $first_non_empty );
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}
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$this->phpcsFile->fixer->endChangeset();
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}
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// No need to check for spacing around opener/closer as this array should be multi-line.
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return;
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}
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}
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}
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/*
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* Check that there is a single space after the array opener and before the array closer.
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*/
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if ( \T_WHITESPACE !== $this->tokens[ ( $opener + 1 ) ]['code'] ) {
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$fix = $this->phpcsFile->addFixableError(
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'Missing space after array opener.',
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$opener,
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'NoSpaceAfterArrayOpener'
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);
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if ( true === $fix ) {
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$this->phpcsFile->fixer->addContent( $opener, ' ' );
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}
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} elseif ( ' ' !== $this->tokens[ ( $opener + 1 ) ]['content'] ) {
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$fix = $this->phpcsFile->addFixableError(
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'Expected 1 space after array opener, found %s.',
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$opener,
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'SpaceAfterArrayOpener',
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array( \strlen( $this->tokens[ ( $opener + 1 ) ]['content'] ) )
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);
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if ( true === $fix ) {
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$this->phpcsFile->fixer->replaceToken( ( $opener + 1 ), ' ' );
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}
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}
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if ( \T_WHITESPACE !== $this->tokens[ ( $closer - 1 ) ]['code'] ) {
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$fix = $this->phpcsFile->addFixableError(
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'Missing space before array closer.',
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$closer,
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'NoSpaceBeforeArrayCloser'
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);
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if ( true === $fix ) {
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$this->phpcsFile->fixer->addContentBefore( $closer, ' ' );
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}
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} elseif ( ' ' !== $this->tokens[ ( $closer - 1 ) ]['content'] ) {
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$fix = $this->phpcsFile->addFixableError(
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'Expected 1 space before array closer, found %s.',
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$closer,
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'SpaceBeforeArrayCloser',
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array( \strlen( $this->tokens[ ( $closer - 1 ) ]['content'] ) )
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);
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if ( true === $fix ) {
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$this->phpcsFile->fixer->replaceToken( ( $closer - 1 ), ' ' );
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}
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}
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}
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/**
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* Process a multi-line array.
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*
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* @since 0.13.0 The actual checks contained in this method used to
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* be in the `ArrayDeclaration` sniff.
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*
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* @param int $stackPtr The position of the current token in the stack.
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* @param int $opener The position of the array opener.
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* @param int $closer The position of the array closer.
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*
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* @return void
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*/
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protected function process_multi_line_array( $stackPtr, $opener, $closer ) {
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/*
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* Check that the closing bracket is on a new line.
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*/
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$last_content = $this->phpcsFile->findPrevious( \T_WHITESPACE, ( $closer - 1 ), $opener, true );
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if ( false !== $last_content
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&& $this->tokens[ $last_content ]['line'] === $this->tokens[ $closer ]['line']
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) {
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$fix = $this->phpcsFile->addFixableError(
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'Closing parenthesis of array declaration must be on a new line',
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$closer,
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'CloseBraceNewLine'
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);
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if ( true === $fix ) {
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$this->phpcsFile->fixer->beginChangeset();
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if ( $last_content < ( $closer - 1 )
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&& \T_WHITESPACE === $this->tokens[ ( $closer - 1 ) ]['code']
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) {
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// Remove whitespace which would otherwise becoming trailing
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// (as it gives problems with the fixed file).
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$this->phpcsFile->fixer->replaceToken( ( $closer - 1 ), '' );
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}
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$this->phpcsFile->fixer->addNewlineBefore( $closer );
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$this->phpcsFile->fixer->endChangeset();
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}
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}
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/*
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* Check that each array item starts on a new line.
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*/
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$array_items = $this->get_function_call_parameters( $stackPtr );
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$end_of_last_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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// Ignore comments after array items if the next real content starts on a new line.
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if ( $this->tokens[ $first_content ]['line'] === $this->tokens[ $end_of_last_item ]['line']
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&& ( \T_COMMENT === $this->tokens[ $first_content ]['code']
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|| isset( Tokens::$phpcsCommentTokens[ $this->tokens[ $first_content ]['code'] ] ) )
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) {
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$end_of_comment = $first_content;
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// Find the end of (multi-line) /* */- style trailing comments.
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if ( substr( ltrim( $this->tokens[ $end_of_comment ]['content'] ), 0, 2 ) === '/*' ) {
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while ( ( \T_COMMENT === $this->tokens[ $end_of_comment ]['code']
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|| isset( Tokens::$phpcsCommentTokens[ $this->tokens[ $end_of_comment ]['code'] ] ) )
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&& substr( rtrim( $this->tokens[ $end_of_comment ]['content'] ), -2 ) !== '*/'
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&& ( $end_of_comment + 1 ) < $end_of_this_item
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) {
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$end_of_comment++;
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}
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if ( $this->tokens[ $end_of_comment ]['line'] !== $this->tokens[ $end_of_last_item ]['line'] ) {
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// Multi-line trailing comment.
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$end_of_last_item = $end_of_comment;
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}
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}
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$next = $this->phpcsFile->findNext(
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array( \T_WHITESPACE, \T_DOC_COMMENT_WHITESPACE ),
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( $end_of_comment + 1 ),
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$end_of_this_item,
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true
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);
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if ( false === $next ) {
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// Shouldn't happen, but just in case.
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$end_of_last_item = $end_of_this_item;
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continue;
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}
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if ( $this->tokens[ $next ]['line'] !== $this->tokens[ $first_content ]['line'] ) {
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$first_content = $next;
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}
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}
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if ( false === $first_content ) {
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// Shouldn't happen, but just in case.
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$end_of_last_item = $end_of_this_item;
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continue;
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}
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if ( $this->tokens[ $end_of_last_item ]['line'] === $this->tokens[ $first_content ]['line'] ) {
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$fix = $this->phpcsFile->addFixableError(
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'Each item in a multi-line array must be on a new line',
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$first_content,
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'ArrayItemNoNewLine'
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);
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if ( true === $fix ) {
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$this->phpcsFile->fixer->beginChangeset();
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if ( ( $end_of_last_item + 1 ) <= ( $first_content - 1 )
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&& \T_WHITESPACE === $this->tokens[ ( $first_content - 1 ) ]['code']
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) {
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// Remove whitespace which would otherwise becoming trailing
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// (as it gives problems with the fixed file).
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$this->phpcsFile->fixer->replaceToken( ( $first_content - 1 ), '' );
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}
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$this->phpcsFile->fixer->addNewlineBefore( $first_content );
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$this->phpcsFile->fixer->endChangeset();
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}
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}
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$end_of_last_item = $end_of_this_item;
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}
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}
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}
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