Method addChildren

query/outputnode.go:363–389

addChildren appends attrs to existing fj's attrs.

(fj, head fastJsonNode)

// addChildren appends attrs to existing fj's attrs.
func (enc *encoder) addChildren(fj, head fastJsonNode) {
	if fj.child == nil {
		fj.child = head
		return
	}

	tail := head
	for tail.next != nil {
		tail = tail.next
	}

	// We're inserting the node in between. This would need to be fixed later via fixOrder.
	// Single child additions:
	// Child 1
	// Child 2 -> 1
	// Child 3 -> 2 -> 1
	// Child 4 -> 3 -> 2 -> 1
	// Child 5 -> 4 -> 3 -> 2 -> 1
	//
	// If child has siblings, then it could look like this.
	// addChildren(13 -> 12 -> 11)
	// Child 5 -> 4 -> 3 -> 2 -> 1
	//
	// What we want:
	// 13 -> 12 -> 11 -> 5 -> 4 -> 3 -> 2 -> 1
	fj.child, tail.next = head, fj.child
}

// fixOrder would recursively fix the ordering issue caused by addChildren, across the entire
// tree.