Zephir\Optimizers\FunctionCall\TrimOptimizer::optimize PHP Метод

    public function optimize(array $expression, Call $call, CompilationContext $context)
    {
        if (!isset($expression['parameters'])) {
            return false;
        }
        $charlist = 'NULL ';
        if (count($expression['parameters']) == 2) {
            if ($expression['parameters'][1]['parameter']['type'] == 'null') {
                unset($expression['parameters'][1]);
            }
        }
        /**
         * Process the expected symbol to be returned
         */
        $call->processExpectedReturn($context);
        $symbolVariable = $call->getSymbolVariable(true, $context);
        if ($symbolVariable->isNotVariableAndString()) {
            throw new CompilerException("Returned values by functions can only be assigned to variant variables", $expression);
        }
        $context->headersManager->add('kernel/string');
        $symbolVariable->setDynamicTypes('string');
        $resolvedParams = $call->getReadOnlyResolvedParams($expression['parameters'], $context, $expression);
        if (isset($resolvedParams[1])) {
            $charlist = $resolvedParams[1];
        }
        if ($call->mustInitSymbolVariable()) {
            $symbolVariable->initVariant($context);
        }
        $symbol = $context->backend->getVariableCode($symbolVariable);
        $context->codePrinter->output('zephir_fast_trim(' . $symbol . ', ' . $resolvedParams[0] . ', ' . $charlist . ', ' . static::$TRIM_WHERE . ' TSRMLS_CC);');
        return new CompiledExpression('variable', $symbolVariable->getRealName(), $expression);
    }