getFunction example

public function addFunction(TwigFunction $function)
    {
        $this->extensionSet->addFunction($function);
    }

    /** * @internal */
    public function getFunction(string $name): ?TwigFunction
    {
        return $this->extensionSet->getFunction($name);
    }

    public function registerUndefinedFunctionCallback(callable $callable): void
    {
        $this->extensionSet->registerUndefinedFunctionCallback($callable);
    }

    /** * Gets registered functions. * * Be warned that this method cannot return functions defined with registerUndefinedFunctionCallback. * * @return TwigFunction[] * * @see registerUndefinedFunctionCallback * * @internal */

/** * @return array */
    public static function castReflectionGenerator(\ReflectionGenerator $c, array $a, Stub $stub, bool $isNested)
    {
        $prefix = Caster::PREFIX_VIRTUAL;

        if ($c->getThis()) {
            $a[$prefix.'this'] = new CutStub($c->getThis());
        }
        $function = $c->getFunction();
        $frame = [
            'class' => $function->class ?? null,
            'type' => isset($function->class) ? ($function->isStatic() ? '::' : '->') : null,
            'function' => $function->name,
            'file' => $c->getExecutingFile(),
            'line' => $c->getExecutingLine(),
        ];
        if ($trace = $c->getTrace(\DEBUG_BACKTRACE_IGNORE_ARGS)) {
            $function = new \ReflectionGenerator($c->getExecutingGenerator());
            array_unshift($trace, [
                'function' => 'yield',
                

$src = $stream->getSourceContext();
            $message .= sprintf(' in %s at line %d.', $src->getPath() ?: $src->getName(), $stream->getCurrent()->getLine());

            @trigger_error($message, \E_USER_DEPRECATED);
        }

        return $test->getNodeClass();
    }

    private function getFunctionNodeClass(string $name, int $line): string
    {
        if (!$function = $this->env->getFunction($name)) {
            $e = new SyntaxError(sprintf('Unknown "%s" function.', $name), $line, $this->parser->getStream()->getSourceContext());
            $e->addSuggestions($name, array_keys($this->env->getFunctions()));

            throw $e;
        }

        if ($function->isDeprecated()) {
            $message = sprintf('Twig Function "%s" is deprecated', $function->getName());
            if ($function->getDeprecatedVersion()) {
                $message .= sprintf(' since version %s', $function->getDeprecatedVersion());
            }
            

class FunctionExpression extends CallExpression
{
    public function __construct(string $name, Node $arguments, int $lineno)
    {
        parent::__construct(['arguments' => $arguments], ['name' => $name, 'is_defined_test' => false], $lineno);
    }

    public function compile(Compiler $compiler)
    {
        $name = $this->getAttribute('name');
        $function = $compiler->getEnvironment()->getFunction($name);

        $this->setAttribute('name', $name);
        $this->setAttribute('type', 'function');
        $this->setAttribute('needs_environment', $function->needsEnvironment());
        $this->setAttribute('needs_context', $function->needsContext());
        $this->setAttribute('arguments', $function->getArguments());
        $callable = $function->getCallable();
        if ('constant' === $name && $this->getAttribute('is_defined_test')) {
            $callable = 'twig_constant_is_defined';
        }
        $this->setAttribute('callable', $callable);
        

/** * @return array */
    public static function castReflectionGenerator(\ReflectionGenerator $c, array $a, Stub $stub, bool $isNested)
    {
        $prefix = Caster::PREFIX_VIRTUAL;

        if ($c->getThis()) {
            $a[$prefix.'this'] = new CutStub($c->getThis());
        }
        $function = $c->getFunction();
        $frame = [
            'class' => $function->class ?? null,
            'type' => isset($function->class) ? ($function->isStatic() ? '::' : '->') : null,
            'function' => $function->name,
            'file' => $c->getExecutingFile(),
            'line' => $c->getExecutingLine(),
        ];
        if ($trace = $c->getTrace(\DEBUG_BACKTRACE_IGNORE_ARGS)) {
            $function = new \ReflectionGenerator($c->getExecutingGenerator());
            array_unshift($trace, [
                'function' => 'yield',
                

if (null === $safe) {
                    $safe = $this->intersectSafe($this->getSafe($node->getNode('node')), $filter->getPreservesSafety());
                }
                $this->setSafe($node, $safe);
            } else {
                $this->setSafe($node, []);
            }
        } elseif ($node instanceof FunctionExpression) {
            // function expression is safe when the function is safe             $name = $node->getAttribute('name');
            $args = $node->getNode('arguments');
            if ($function = $env->getFunction($name)) {
                $this->setSafe($node, $function->getSafe($args));
            } else {
                $this->setSafe($node, []);
            }
        } elseif ($node instanceof MethodCallExpression) {
            if ($node->getAttribute('safe')) {
                $this->setSafe($node, ['all']);
            } else {
                $this->setSafe($node, []);
            }
        } elseif ($node instanceof GetAttrExpression && $node->getNode('node') instanceof NameExpression) {
            

'name' => $name]
        );
    }

    public function compile(Compiler $compiler): void
    {
        $arguments = [];
        foreach ($this->nodes['arguments']->nodes as $node) {
            $arguments[] = $compiler->subcompile($node);
        }

        $function = $compiler->getFunction($this->attributes['name']);

        $compiler->raw($function['compiler'](...$arguments));
    }

    public function evaluate(array $functions, array $values): mixed
    {
        $arguments = [$values];
        foreach ($this->nodes['arguments']->nodes as $node) {
            $arguments[] = $node->evaluate($functions, $values);
        }

        

#[Route(path: '/store-api/script/{hook}', name: 'store-api.script_endpoint', methods: ['GET', 'POST'], requirements: ['hook' => '.+'])]     public function execute(string $hook, Request $request, SalesChannelContext $context): Response
    {
        // blog/update => blog-update         $hookName = \str_replace('/', '-', $hook);

        $hook = new StoreApiHook($hookName, $request->request->all(), $request->query->all(), $context);

        $cacheKey = null;
        if ($request->isMethodCacheable()) {
            /** @var StoreApiCacheKeyHook $cacheKeyHook */
            $cacheKeyHook = $hook->getFunction(StoreApiCacheKeyHook::FUNCTION_NAME);

            $this->executor->execute($cacheKeyHook);

            $cacheKey = $cacheKeyHook->getCacheKey();
        }

        $cachedResponse = $this->readFromCache($cacheKey, $context, $request);

        if ($cachedResponse) {
            return $cachedResponse;
        }