mirror of
https://github.com/danog/psalm.git
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ed61bcafda
* add support for Psalter to remove UnusedVariable * fix issues found by Psalm * fix stylistic issues found by phpcs * added more stylistic changes and suppressed UndefinedClass error for Psalm * suppress TypeDoesNotContainType error for CheckTrivialExprVisitor * fix whitespace issue raised by phpcs * fix bug where partial removal of assignment by ref does not process '&' symbol * Remove workspace files * remove 'Array_' and 'ArrayItem' classes from blacklist and add 'New_' class to the blacklist
85 lines
2.3 KiB
PHP
85 lines
2.3 KiB
PHP
<?php
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namespace Psalm;
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use function sha1;
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use function strlen;
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use function strrpos;
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use function substr;
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use function trim;
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class FileManipulation
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{
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/** @var int */
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public $start;
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/** @var int */
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public $end;
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/** @var string */
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public $insertion_text;
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/** @var bool */
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public $preserve_indentation;
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/** @var bool */
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public $remove_trailing_newline;
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/**
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* @param int $start
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* @param int $end
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* @param string $insertion_text
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*/
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public function __construct(
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int $start,
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int $end,
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string $insertion_text,
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bool $preserve_indentation = false,
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bool $remove_trailing_newline = false
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) {
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$this->start = $start;
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$this->end = $end;
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$this->insertion_text = $insertion_text;
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$this->preserve_indentation = $preserve_indentation;
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$this->remove_trailing_newline = $remove_trailing_newline;
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}
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public function getKey() : string
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{
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return $this->start === $this->end
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? ($this->start . ':' . sha1($this->insertion_text))
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: ($this->start . ':' . $this->end);
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}
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public function transform(string $existing_contents) : string
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{
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if ($this->preserve_indentation) {
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$newline_pos = strrpos($existing_contents, "\n", $this->start - strlen($existing_contents));
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$newline_pos = $newline_pos !== false ? $newline_pos + 1 : 0;
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$indentation = substr($existing_contents, $newline_pos, $this->start - $newline_pos);
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if (trim($indentation) === '') {
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$this->insertion_text = $this->insertion_text . $indentation;
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}
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}
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if ($this->remove_trailing_newline && $existing_contents[$this->end] === "\n") {
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$newline_pos = strrpos($existing_contents, "\n", $this->start - strlen($existing_contents));
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$newline_pos = $newline_pos !== false ? $newline_pos + 1 : 0;
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$indentation = substr($existing_contents, $newline_pos, $this->start - $newline_pos);
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if (trim($indentation) === '') {
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$this->start -= strlen($indentation);
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$this->end++;
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}
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}
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return substr($existing_contents, 0, $this->start)
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. $this->insertion_text
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. substr($existing_contents, $this->end);
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}
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}
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