Digia\GraphQL\Execution\Executor::completeValue()

Complexity

Conditions	11
Paths	10

Size

Total Lines	67
Code Lines	29

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    private function completeValue(
        TypeInterface $returnType,
        $fieldNodes,
        ResolveInfo $info,
        $path,
        &$result
    ) {
        if ($this->isPromise($result)) {
            /** @var ExtendedPromiseInterface $result */
            return $result->then(function (&$value) use ($returnType, $fieldNodes, $info, $path) {
                return $this->completeValue($returnType, $fieldNodes, $info, $path, $value);
            });
        }

        if ($result instanceof \Throwable) {
            throw $result;
        }

        // If result is null-like, return null.
        if (null === $result) {
            return null;
        }

        if ($returnType instanceof NonNullType) {
            $completed = $this->completeValue(
                $returnType->getOfType(),
                $fieldNodes,
                $info,
                $path,
                $result
            );

            if ($completed === null) {
                throw new ExecutionException(
                    sprintf(
                        'Cannot return null for non-nullable field %s.%s.',
                        $info->getParentType(), $info->getFieldName()
                    )
                );
            }

            return $completed;
        }

        // If field type is List, complete each item in the list with the inner type
        if ($returnType instanceof ListType) {
            return $this->completeListValue($returnType, $fieldNodes, $info, $path, $result);
        }


        // If field type is Scalar or Enum, serialize to a valid value, returning
        // null if serialization is not possible.
        if ($returnType instanceof LeafTypeInterface) {
            return $this->completeLeafValue($returnType, $result);
        }

        //@TODO Make a function for checking abstract type?
        if ($returnType instanceof InterfaceType || $returnType instanceof UnionType) {
            return $this->completeAbstractValue($returnType, $fieldNodes, $info, $path, $result);
        }

        // Field type must be Object, Interface or Union and expect sub-selections.
        if ($returnType instanceof ObjectType) {
            return $this->completeObjectValue($returnType, $fieldNodes, $info, $path, $result);
        }

        throw new ExecutionException("Cannot complete value of unexpected type \"{$returnType}\".");
    }