Automattic\WooCommerce\Api\Infrastructure

GraphQLControllerBase::walk_depth_in_depth │ private │ WC 1.0

Walk a selection set counting every field in the deepest chain, leaves included. Produces the "shape" metric surfaced alongside the enforcement metric in debug output.

Method of the class: GraphQLControllerBase{}

No Hooks.

Returns

null. Nothing (null).

Usage

// private - for code of main (parent) class only
$result = $this->walk_depth_in_depth( ?SelectionSetNode $selection_set, $depth ): int;
?SelectionSetNode $selection_set(required)
.
$depth(int) (required)
The depth of the selection set's parent.

GraphQLControllerBase::walk_depth_in_depth() code WC 10.9.1

woocommerce/src/Api/Infrastructure/GraphQLControllerBase.php 
private function walk_depth_in_depth( ?SelectionSetNode $selection_set, int $depth ): int {
	if ( null === $selection_set ) {
		return $depth;
	}

	$max = $depth;
	foreach ( $selection_set->selections as $selection ) {
		if ( $selection instanceof FieldNode ) {
			$max = max( $max, $this->walk_depth_in_depth( $selection->selectionSet, $depth + 1 ) );
		} elseif ( $selection instanceof InlineFragmentNode ) {
			$max = max( $max, $this->walk_depth_in_depth( $selection->selectionSet, $depth ) );
		}
	}

	return $max;
}