Missing dependancies

2023-06-21 12:19:22 +00:00
parent fbf3f180c2
commit 421f25c80d
2356 changed files with 342670 additions and 4743 deletions
@@ -0,0 +1,207 @@
+<?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;
+
+use PhpCsFixer\Tokenizer\Tokens;
+
+abstract class AbstractNoUselessElseFixer extends AbstractFixer
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getPriority(): int
+    {
+        // should be run before NoWhitespaceInBlankLineFixer, NoExtraBlankLinesFixer, BracesFixer and after NoEmptyStatementFixer.
+        return 39;
+    }
+
+    protected function isSuperfluousElse(Tokens $tokens, int $index): bool
+    {
+        $previousBlockStart = $index;
+
+        do {
+            // Check if all 'if', 'else if ' and 'elseif' blocks above this 'else' always end,
+            // if so this 'else' is overcomplete.
+            [$previousBlockStart, $previousBlockEnd] = $this->getPreviousBlock($tokens, $previousBlockStart);
+
+            // short 'if' detection
+            $previous = $previousBlockEnd;
+            if ($tokens[$previous]->equals('}')) {
+                $previous = $tokens->getPrevMeaningfulToken($previous);
+            }
+
+            if (
+                !$tokens[$previous]->equals(';')                                    // 'if' block doesn't end with semicolon, keep 'else'
+                || $tokens[$tokens->getPrevMeaningfulToken($previous)]->equals('{') // empty 'if' block, keep 'else'
+            ) {
+                return false;
+            }
+
+            $candidateIndex = $tokens->getPrevTokenOfKind(
+                $previous,
+                [
+                    ';',
+                    [T_BREAK],
+                    [T_CLOSE_TAG],
+                    [T_CONTINUE],
+                    [T_EXIT],
+                    [T_GOTO],
+                    [T_IF],
+                    [T_RETURN],
+                    [T_THROW],
+                ]
+            );
+
+            if (null === $candidateIndex || $tokens[$candidateIndex]->equalsAny([';', [T_CLOSE_TAG], [T_IF]])) {
+                return false;
+            }
+
+            if ($tokens[$candidateIndex]->isGivenKind(T_THROW)) {
+                $previousIndex = $tokens->getPrevMeaningfulToken($candidateIndex);
+
+                if (!$tokens[$previousIndex]->equalsAny([';', '{'])) {
+                    return false;
+                }
+            }
+
+            if ($this->isInConditional($tokens, $candidateIndex, $previousBlockStart)
+                || $this->isInConditionWithoutBraces($tokens, $candidateIndex, $previousBlockStart)
+            ) {
+                return false;
+            }
+
+            // implicit continue, i.e. delete candidate
+        } while (!$tokens[$previousBlockStart]->isGivenKind(T_IF));
+
+        return true;
+    }
+
+    /**
+     * Return the first and last token index of the previous block.
+     *
+     * [0] First is either T_IF, T_ELSE or T_ELSEIF
+     * [1] Last is either '}' or ';' / T_CLOSE_TAG for short notation blocks
+     *
+     * @param int $index T_IF, T_ELSE, T_ELSEIF
+     *
+     * @return int[]
+     */
+    private function getPreviousBlock(Tokens $tokens, int $index): array
+    {
+        $close = $previous = $tokens->getPrevMeaningfulToken($index);
+        // short 'if' detection
+        if ($tokens[$close]->equals('}')) {
+            $previous = $tokens->findBlockStart(Tokens::BLOCK_TYPE_CURLY_BRACE, $close);
+        }
+
+        $open = $tokens->getPrevTokenOfKind($previous, [[T_IF], [T_ELSE], [T_ELSEIF]]);
+        if ($tokens[$open]->isGivenKind(T_IF)) {
+            $elseCandidate = $tokens->getPrevMeaningfulToken($open);
+            if ($tokens[$elseCandidate]->isGivenKind(T_ELSE)) {
+                $open = $elseCandidate;
+            }
+        }
+
+        return [$open, $close];
+    }
+
+    /**
+     * @param int $index           Index of the token to check
+     * @param int $lowerLimitIndex Lower limit index. Since the token to check will always be in a conditional we must stop checking at this index
+     */
+    private function isInConditional(Tokens $tokens, int $index, int $lowerLimitIndex): bool
+    {
+        $candidateIndex = $tokens->getPrevTokenOfKind($index, [')', ';', ':']);
+        if ($tokens[$candidateIndex]->equals(':')) {
+            return true;
+        }
+
+        if (!$tokens[$candidateIndex]->equals(')')) {
+            return false; // token is ';' or close tag
+        }
+
+        // token is always ')' here.
+        // If it is part of the condition the token is always in, return false.
+        // If it is not it is a nested condition so return true
+        $open = $tokens->findBlockStart(Tokens::BLOCK_TYPE_PARENTHESIS_BRACE, $candidateIndex);
+
+        return $tokens->getPrevMeaningfulToken($open) > $lowerLimitIndex;
+    }
+
+    /**
+     * For internal use only, as it is not perfect.
+     *
+     * Returns if the token at given index is part of an if/elseif/else statement
+     * without {}. Assumes not passing the last `;`/close tag of the statement, not
+     * out of range index, etc.
+     *
+     * @param int $index Index of the token to check
+     */
+    private function isInConditionWithoutBraces(Tokens $tokens, int $index, int $lowerLimitIndex): bool
+    {
+        do {
+            if ($tokens[$index]->isComment() || $tokens[$index]->isWhitespace()) {
+                $index = $tokens->getPrevMeaningfulToken($index);
+            }
+
+            $token = $tokens[$index];
+            if ($token->isGivenKind([T_IF, T_ELSEIF, T_ELSE])) {
+                return true;
+            }
+
+            if ($token->equals(';')) {
+                return false;
+            }
+
+            if ($token->equals('{')) {
+                $index = $tokens->getPrevMeaningfulToken($index);
+
+                // OK if belongs to: for, do, while, foreach
+                // Not OK if belongs to: if, else, elseif
+                if ($tokens[$index]->isGivenKind(T_DO)) {
+                    --$index;
+
+                    continue;
+                }
+
+                if (!$tokens[$index]->equals(')')) {
+                    return false; // like `else {`
+                }
+
+                $index = $tokens->findBlockStart(
+                    Tokens::BLOCK_TYPE_PARENTHESIS_BRACE,
+                    $index
+                );
+
+                $index = $tokens->getPrevMeaningfulToken($index);
+                if ($tokens[$index]->isGivenKind([T_IF, T_ELSEIF])) {
+                    return false;
+                }
+            } elseif ($token->equals(')')) {
+                $type = Tokens::detectBlockType($token);
+                $index = $tokens->findBlockStart(
+                    $type['type'],
+                    $index
+                );
+
+                $index = $tokens->getPrevMeaningfulToken($index);
+            } else {
+                --$index;
+            }
+        } while ($index > $lowerLimitIndex);
+
+        return false;
+    }
+}