railt / sdl

        /** @var DirectiveDefinition $definition */

        $definition = $directive->getDefinition();

        if (! ($definition instanceof Definition\DirectiveDefinition)) {

            $error = '%s should be a Directive, but %s given';

            throw (new TypeConflictException(\sprintf($error, $directive,

                $definition)))->throwsIn($directive->getFile(), $rule->getOffset());

        }

        return $definition;

    }

            $name = $ast->getArgumentName();

            $argument = $def->getArgument($name);

            if ($argument === null) {

                $error = 'Directive %s does not provide argument %s';

                throw (new TypeConflictException(\sprintf($error, $def, $name)))->throwsIn($call->getFile(),

                        $ast->getOffset());

            }

            $value = $this->valueOf($argument, $ast->getArgumentValue());