Automattic\WooCommerce\Vendor\GraphQL\Language

Parser::expectKeyword │ private │ WC 1.0

If the next token is a keyword with the given value, advance the lexer. Otherwise, throw an error.

Method of the class: Parser{}

No Hooks.

Returns

null. Nothing (null).

Usage

// private - for code of main (parent) class only
$result = $this->expectKeyword( $value ): void;
$value(string) (required)
.

Parser::expectKeyword() code WC 11.0.1

woocommerce/lib/packages/GraphQL/Language/Parser.php 
private function expectKeyword(string $value): void
{
    $token = $this->lexer->token;
    if ($token->kind !== Token::NAME || $token->value !== $value) {
        throw new SyntaxError($this->lexer->source, $token->start, "Expected \"{$value}\", found {$token->getDescription()}");
    }

    $this->lexer->advance();
}