compileCallable example

$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);
        $this->setAttribute('is_variadic', $function->isVariadic());

        $this->compileCallable($compiler);
    }
}

public function compile(Compiler $compiler): void
    {
        $name = $this->getAttribute('name');
        $test = $compiler->getEnvironment()->getTest($name);

        $this->setAttribute('name', $name);
        $this->setAttribute('type', 'test');
        $this->setAttribute('arguments', $test->getArguments());
        $this->setAttribute('callable', $test->getCallable());
        $this->setAttribute('is_variadic', $test->isVariadic());

        $this->compileCallable($compiler);
    }
}

$name = $this->getNode('filter')->getAttribute('value');
        $filter = $compiler->getEnvironment()->getFilter($name);

        $this->setAttribute('name', $name);
        $this->setAttribute('type', 'filter');
        $this->setAttribute('needs_environment', $filter->needsEnvironment());
        $this->setAttribute('needs_context', $filter->needsContext());
        $this->setAttribute('arguments', $filter->getArguments());
        $this->setAttribute('callable', $filter->getCallable());
        $this->setAttribute('is_variadic', $filter->isVariadic());

        $this->compileCallable($compiler);
    }
}