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File: SourceRepresentation.php
<?php declare(strict_types=1); /* * The MIT License (MIT) * * Copyright (c) 2013 Jonathan Vollebregt (jnvsor@gmail.com), Rokas Šleinius (raveren@gmail.com) * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ namespace Kint\Value\Representation; use RuntimeException; class SourceRepresentation extends AbstractRepresentation { private const DEFAULT_PADDING = 7; /** * @psalm-readonly * * @psalm-var non-empty-array<string> */ protected array $source; /** @psalm-readonly */ protected string $filename; /** @psalm-readonly */ protected int $line; /** @psalm-readonly */ protected bool $showfilename; public function __construct(string $filename, int $line, ?int $padding = self::DEFAULT_PADDING, bool $showfilename = false) { parent::__construct('Source'); $this->filename = $filename; $this->line = $line; $this->showfilename = $showfilename; $padding ??= self::DEFAULT_PADDING; $start_line = \max($line - $padding, 1); $length = $line + $padding + 1 - $start_line; $this->source = self::readSource($filename, $start_line, $length); } public function getHint(): string { return 'source'; } /** * @psalm-api * * @psalm-return non-empty-string */ public function getSourceSlice(): string { return \implode("\n", $this->source); } /** @psalm-return non-empty-array<string> */ public function getSourceLines(): array { return $this->source; } public function getFileName(): string { return $this->filename; } public function getLine(): int { return $this->line; } public function showFileName(): bool { return $this->showfilename; } /** * Gets section of source code. * * @psalm-return non-empty-array<string> */ private static function readSource(string $filename, int $start_line = 1, ?int $length = null): array { if (!$filename || !\file_exists($filename) || !\is_readable($filename)) { throw new RuntimeException("Couldn't read file"); } $source = \preg_split("/\r\n|\n|\r/", \file_get_contents($filename)); $source = \array_combine(\range(1, \count($source)), $source); $source = \array_slice($source, $start_line - 1, $length, true); if (0 === \count($source)) { throw new RuntimeException('File seemed to be empty'); } return $source; } }