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Fabien Potencier
4d9388dbe0
* 3.x: Fix testing and expression when it evaluates to an instance of Markup Simplify Error implementation Make the defined test implementation more generic fix typo fix the rst syntax of the operator precedence table
62 lines
3.3 KiB
PHP
62 lines
3.3 KiB
PHP
<?php
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/*
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* This file is part of Twig.
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*
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* (c) Fabien Potencier
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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use Twig\Environment;
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use Twig\ExpressionParser\ExpressionParserDescriptionInterface;
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use Twig\ExpressionParser\ExpressionParserType;
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use Twig\ExpressionParser\InfixAssociativity;
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use Twig\ExpressionParser\InfixExpressionParserInterface;
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use Twig\Loader\ArrayLoader;
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require_once \dirname(__DIR__).'/vendor/autoload.php';
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$output = fopen(\dirname(__DIR__).'/doc/operators_precedence.rst', 'w');
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$twig = new Environment(new ArrayLoader([]));
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$descriptionLength = 11;
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$expressionParsers = [];
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foreach ($twig->getExpressionParsers() as $expressionParser) {
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$expressionParsers[] = $expressionParser;
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$descriptionLength = max($descriptionLength, $expressionParser instanceof ExpressionParserDescriptionInterface ? strlen($expressionParser->getDescription()) : '');
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}
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fwrite($output, "\n+------------+------------------+---------+---------------+".str_repeat('-', $descriptionLength + 2)."+\n");
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fwrite($output, "| Precedence | Operator | Type | Associativity | Description".str_repeat(' ', $descriptionLength - 11)." |\n");
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fwrite($output, '+============+==================+=========+===============+'.str_repeat('=', $descriptionLength + 2).'+');
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usort($expressionParsers, fn ($a, $b) => $b->getPrecedence() <=> $a->getPrecedence());
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$previous = null;
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foreach ($expressionParsers as $expressionParser) {
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if (null !== $previous) {
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fwrite($output, "\n+------------+------------------+---------+---------------+".str_repeat('-', $descriptionLength + 2).'+');
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}
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$precedence = $expressionParser->getPrecedence();
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$previousPrecedence = $previous ? $previous->getPrecedence() : \PHP_INT_MAX;
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$associativity = $expressionParser instanceof InfixExpressionParserInterface ? (InfixAssociativity::Left === $expressionParser->getAssociativity() ? 'Left' : 'Right') : 'n/a';
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$previousAssociativity = $previous ? ($previous instanceof InfixExpressionParserInterface ? (InfixAssociativity::Left === $previous->getAssociativity() ? 'Left' : 'Right') : 'n/a') : 'n/a';
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if ($previousPrecedence !== $precedence) {
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$previous = null;
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}
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fwrite($output, rtrim(\sprintf("\n| %-10s | %-16s | %-7s | %-13s | %-{$descriptionLength}s |\n",
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(!$previous || $previousPrecedence !== $precedence ? $precedence : '').($expressionParser->getPrecedenceChange() ? ' => '.$expressionParser->getPrecedenceChange()->getNewPrecedence() : ''),
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'``'.$expressionParser->getName().'``',
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!$previous || ExpressionParserType::getType($previous) !== ExpressionParserType::getType($expressionParser) ? ExpressionParserType::getType($expressionParser)->value : '',
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!$previous || $previousAssociativity !== $associativity ? $associativity : '',
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$expressionParser instanceof ExpressionParserDescriptionInterface ? $expressionParser->getDescription() : '',
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)));
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$previous = $expressionParser;
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}
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fwrite($output, "\n+------------+------------------+---------+---------------+".str_repeat('-', $descriptionLength + 2)."+\n");
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fwrite($output, "\nWhen a precedence will change in the next major version, the new precedence is indicated by the arrow ``=>``.\n");
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fclose($output);
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