Fixes #13. Implemented Ely\multiline_if_statement_braces fixer

CHANGELOG.md

@@ -7,7 +7,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## [Unreleased]
 ### Added
 - Enh #12: Implemented `Ely\align_multiline_parameters` fixer.
+- Enh #13: Implemented `Ely\multiline_if_statement_braces` fixer.
 - Enabled `Ely\align_multiline_parameters` for Ely.by codestyle in `['types' => false, 'defaults' => false]` mode.
+- Enabled `Ely\multiline_if_statement_braces` for Ely.by codestyle in `['keep_on_own_line' => true]` mode.
 - Enabled
   [`PhpCsFixerCustomFixers/multiline_promoted_properties`](https://github.com/kubawerlos/php-cs-fixer-custom-fixers#multilinepromotedpropertiesfixer)
   fixer for Ely.by codestyle in 2+ parameters mode.

README.md

@@ -286,6 +286,28 @@ and `do-while`.
  $c = 'next statement';
 ```
 
+### `Ely/multiline_if_statement_braces`
+
+Ensures that multiline if statement body curly brace placed on the right line.
+
+```diff
+--- Original
++++ New
+@@ @@
+ <?php
+ if ($condition1 === 123
+- && $condition2 = 321) {
++ && $condition2 = 321
++) {
+     // Do something here
+ }
+```
+
+**Configuration:**
+
+* `keep_on_own_line` - should this place closing bracket on its own line? If it's set to `false`, than
+  curly bracket will be placed right after the last condition statement. **Default**: `true`.
+
 ### `Ely/remove_class_name_method_usages` (Yii2)
 
 Replaces Yii2 [`BaseObject::className()`](https://github.com/yiisoft/yii2/blob/e53fc0ded1/framework/base/BaseObject.php#L84)

composer.json

@@ -21,7 +21,8 @@
     "require": {
         "php": "^7.4 || ^8.0",
         "friendsofphp/php-cs-fixer": "^3.13",
-        "kubawerlos/php-cs-fixer-custom-fixers": "^3.13"
+        "kubawerlos/php-cs-fixer-custom-fixers": "^3.13",
+        "symfony/polyfill-php80": "^1.15"
     },
     "require-dev": {
         "ergebnis/composer-normalize": "^2.28",

src/Fixer/Whitespace/MultilineIfStatementBracesFixer.php

@@ -0,0 +1,92 @@
+<?php
+declare(strict_types=1);
+
+namespace Ely\CS\Fixer\Whitespace;
+
+use Ely\CS\Fixer\AbstractFixer;
+use PhpCsFixer\Fixer\ConfigurableFixerInterface;
+use PhpCsFixer\Fixer\WhitespacesAwareFixerInterface;
+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\Tokenizer\Analyzer\WhitespacesAnalyzer;
+use PhpCsFixer\Tokenizer\Tokens;
+use PhpCsFixer\Tokenizer\TokensAnalyzer;
+use SplFileInfo;
+
+final class MultilineIfStatementBracesFixer extends AbstractFixer implements ConfigurableFixerInterface, WhitespacesAwareFixerInterface {
+
+    /**
+     * @internal
+     */
+    public const C_KEEP_ON_OWN_LINE = 'keep_on_own_line';
+
+    public function getDefinition(): FixerDefinitionInterface {
+        return new FixerDefinition(
+            'Ensures that multiline if statement body curly brace placed on the right line.',
+            [
+                new CodeSample(
+                    '<?php
+if ($condition1 == true
+ && $condition2 === false) {}
+',
+                ),
+                new CodeSample(
+                    '<?php
+if ($condition1 == true
+ && $condition2 === false
+) {}
+',
+                    [self::C_KEEP_ON_OWN_LINE => false],
+                ),
+            ],
+        );
+    }
+
+    public function isCandidate(Tokens $tokens): bool {
+        return $tokens->isTokenKindFound(T_IF);
+    }
+
+    protected function createConfigurationDefinition(): FixerConfigurationResolverInterface {
+        return new FixerConfigurationResolver([
+            (new FixerOptionBuilder(self::C_KEEP_ON_OWN_LINE, 'adjusts the position of condition closing brace.'))
+                ->setAllowedTypes(['bool'])
+                ->setDefault(true)
+                ->getOption(),
+        ]);
+    }
+
+    protected function applyFix(SplFileInfo $file, Tokens $tokens): void {
+        $keepOnOwnLine = $this->configuration[self::C_KEEP_ON_OWN_LINE];
+        $tokensAnalyzer = new TokensAnalyzer($tokens);
+        $eol = $this->whitespacesConfig->getLineEnding();
+        foreach ($tokens as $i => $token) {
+            if (!$token->isGivenKind(T_IF)) {
+                continue;
+            }
+
+            $openBraceIndex = $tokens->getNextTokenOfKind($i, ['(']);
+            if (!$tokensAnalyzer->isBlockMultiline($tokens, $openBraceIndex)) {
+                continue;
+            }
+
+            $closingBraceIndex = $tokens->findBlockEnd(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $openBraceIndex);
+            /** @var \PhpCsFixer\Tokenizer\Token $statementBeforeClosingBrace */
+            $statementBeforeClosingBrace = $tokens[$closingBraceIndex - 1];
+            if ($keepOnOwnLine) {
+                if (!$statementBeforeClosingBrace->isWhitespace()
+                 || !str_contains($statementBeforeClosingBrace->getContent(), $eol)
+                ) {
+                    $indent = WhitespacesAnalyzer::detectIndent($tokens, $i);
+                    $tokens->ensureWhitespaceAtIndex($closingBraceIndex, 0, $eol . $indent);
+                }
+            } else {
+                $tokens->removeLeadingWhitespace($closingBraceIndex);
+            }
+        }
+    }
+
+}

src/Rules.php

@@ -228,6 +228,7 @@ public static function create(array $overwrittenRules = []): array {
             ],
             'Ely/blank_line_before_return' => true,
             'Ely/line_break_after_statements' => true,
+            'Ely/multiline_if_statement_braces' => true,
             'Ely/remove_class_name_method_usages' => true,
         ], $overwrittenRules);
     }

tests/Fixer/Whitespace/MultilineIfStatementBracesFixerTest.php

@@ -0,0 +1,68 @@
+<?php
+declare(strict_types=1);
+
+namespace Ely\CS\Test\Fixer\Whitespace;
+
+use Ely\CS\Fixer\Whitespace\MultilineIfStatementBracesFixer;
+use PhpCsFixer\AbstractFixer;
+use PhpCsFixer\Tests\Test\AbstractFixerTestCase;
+
+/**
+ * @covers \Ely\CS\Fixer\Whitespace\MultilineIfStatementBracesFixer
+ */
+class MultilineIfStatementBracesFixerTest extends AbstractFixerTestCase {
+
+    /**
+     * @dataProvider provideFixCases
+     */
+    public function testFixOnNewLine(string $expected, ?string $input = null): void {
+        $this->doTest($expected, $input);
+    }
+
+    public function provideFixCases(): iterable {
+        yield 'simple' => [
+            '<?php
+if ($condition1
+ && $condition2
+) {}',
+            '<?php
+if ($condition1
+ && $condition2) {}',
+        ];
+
+        yield 'nested' => [
+            '<?php
+function foo() {
+    if ($condition1
+     && $condition2
+    ) {}
+}',
+            '<?php
+function foo() {
+    if ($condition1
+     && $condition2) {}
+}',
+        ];
+    }
+
+    /**
+     * @dataProvider provideInvertedFixCases
+     */
+    public function testFixOnSameLine(string $expected, ?string $input = null): void {
+        $this->fixer->configure([
+            MultilineIfStatementBracesFixer::C_KEEP_ON_OWN_LINE => false,
+        ]);
+        $this->doTest($expected, $input);
+    }
+
+    public function provideInvertedFixCases(): iterable {
+        foreach ($this->provideFixCases() as $name => $case) {
+            yield $name => [$case[1], $case[0]];
+        }
+    }
+
+    protected function createFixer(): AbstractFixer {
+        return new MultilineIfStatementBracesFixer();
+    }
+
+}