@graphql-mesh/transport-rest/esm/directives/regexp.js

export function processRegExpAnnotations(scalar, pattern) {
    function coerceString(value) {
        if (value != null) {
            const vStr = value.toString();
            const regexp = new RegExp(pattern);
            if (!regexp.test(vStr)) {
                throw new Error(`${scalar.name} must match ${pattern} but given ${vStr}`);
            }
            return vStr;
        }
    }
    scalar.serialize = coerceString;
    scalar.parseValue = coerceString;
    scalar.parseLiteral = ast => {
        if ('value' in ast) {
            return coerceString(ast.value);
        }
        return null;
    };
}