Automattic\WooCommerce\Vendor\GraphQL\Utils

SchemaPrinter::printSchemaDefinition │ protected static │ WC 1.0

Method of the class: SchemaPrinter{}

No Hooks.

Returns

null. Nothing (null).

Usage

$result = SchemaPrinter::printSchemaDefinition( $schema ): ?string;
$schema(Schema) (required)
.

SchemaPrinter::printSchemaDefinition() code WC 10.9.1

woocommerce/lib/packages/GraphQL/Utils/SchemaPrinter.php 
protected static function printSchemaDefinition(Schema $schema): ?string
{
    $queryType = $schema->getQueryType();
    $mutationType = $schema->getMutationType();
    $subscriptionType = $schema->getSubscriptionType();

    // Special case: When a schema has no root operation types, no valid schema
    // definition can be printed.
    if ($queryType === null && $mutationType === null && $subscriptionType === null) {
        return null;
    }

    // Only print a schema definition if there is a description or if it should
    // not be omitted because of having default type names.
    if ($schema->description !== null || ! static::hasDefaultRootOperationTypes($schema)) {
        return static::printDescription([], $schema) . "schema {\n"
            . ($queryType !== null ? "  query: {$queryType->name}\n" : '')
            . ($mutationType !== null ? "  mutation: {$mutationType->name}\n" : '')
            . ($subscriptionType !== null ? "  subscription: {$subscriptionType->name}\n" : '')
            . '}';
    }

    return null;
}