Automattic\WooCommerce\Vendor\GraphQL\Utils

ASTDefinitionBuilder::makeUnionDef │ private │ WC 1.0

Method of the class: ASTDefinitionBuilder{}

No Hooks.

Returns

null. Nothing (null).

Usage

// private - for code of main (parent) class only
$result = $this->makeUnionDef( $def ): UnionType;
$def(UnionTypeDefinitionNode) (required)
.

ASTDefinitionBuilder::makeUnionDef() code WC 10.9.1

woocommerce/lib/packages/GraphQL/Utils/ASTDefinitionBuilder.php 
private function makeUnionDef(UnionTypeDefinitionNode $def): UnionType
{
    $name = $def->name->value;
    /** @var array<UnionTypeExtensionNode> $extensionASTNodes (proven by schema validation) */
    $extensionASTNodes = $this->typeExtensionsMap[$name] ?? [];

    return new UnionType([
        'name' => $name,
        'description' => $def->description->value ?? null,
        // Note: While this could make assertions to get the correctly typed
        // values below, that would throw immediately while type system
        // validation with validateSchema() will produce more actionable results.
        'types' => function () use ($def, $extensionASTNodes): array {
            $types = [];
            foreach ([$def, ...$extensionASTNodes] as $node) {
                foreach ($node->types as $type) {
                    $types[] = $this->buildType($type);
                }
            }

            /** @var array<int, ObjectType> $types */
            return $types;
        },
        'astNode' => $def,
        'extensionASTNodes' => $extensionASTNodes,
    ]);
}