File Content: EnumFunction.php <?php namespace Twig\Node\Expression\FunctionNode; use Twig\Compiler; use Twig\Error\SyntaxError; use Twig\Node\Expression\ConstantExpression; use Twig\Node\Expression\FunctionExpression; class EnumFunction extends FunctionExpression { public function compile(Compiler $compiler): void { $arguments = $this->getNode('arguments'); if ($arguments->hasNode('enum')) { $firstArgument = $arguments->getNode('enum'); } elseif ($arguments->hasNode('0')) { $firstArgument = $arguments->getNode('0'); } else { $firstArgument = null; } if (!$firstArgument instanceof ConstantExpression || 1 !== \count($arguments)) { parent::compile($compiler); return; } $value = $firstArgument->getAttribute('value'); if (!\is_string($value)) { throw new SyntaxError('The first argument of the "enum" function must be a string.', $this->getTemplateLine(), $this->getSourceContext()); } if (!enum_exists($value)) { throw new SyntaxError(\sprintf('The first argument of the "enum" function must be the name of an enum, "%s" given.', $value), $this->getTemplateLine(), $this->getSourceContext()); } if (!$cases = $value::cases()) { throw new SyntaxError(\sprintf('The first argument of the "enum" function must be a non-empty enum, "%s" given.', $value), $this->getTemplateLine(), $this->getSourceContext()); } $compiler->raw(\sprintf('%s::%s', $value, $cases[0]->name)); } } Submit