Pinq\Queries\Builders\Interpretations\BaseResolver::resolveFunction PHP Метод

    protected final function resolveFunction(IFunction $function)
    {
        $callable = $function->getCallable();
        $this->resolveParameter($this->getFunctionCallableParameter($function), $function->getCallable());
        if ($function instanceof CallableFunction) {
            $reflection = $this->functionInterpreter->getReflection($callable);
            $this->resolveFunctionScope($function, $reflection);
        } elseif ($function instanceof ClosureExpressionFunction) {
            $expression = $function->getExpression();
            $this->hash .= $expression->hash();
            if ($function->hasEvaluationContext()) {
                $evaluationContext = $function->getEvaluationContext();
                $this->resolveParameter($this->getFunctionScopedVariableParameter($function, 'this'), $evaluationContext->getThis());
                foreach (array_intersect_key($evaluationContext->getVariableTable(), array_flip($expression->getUsedVariableNames())) as $variableName => $value) {
                    $this->resolveParameter($this->getFunctionScopedVariableParameter($function, $variableName), $value);
                }
            }
        } else {
            throw new PinqException('Cannot resolve function: unsupported function type %s', get_class($function));
        }
    }